79results about How to "Meet traffic requirements" patented technology

The invention relates to a non-resistance pressure balance anti-resistance device of heat pump of ground water, and relative system, wherein the outer frame (1) of anti-resistance device has external water inlet (6) and external water outlet (7); the rotation filter cylinder (3) is inside the outer frame (1); the rotation filter cylinder (3) is divided into internal water inlet area (4-1) and internal water outlet area (4-2); the internal water inlet area (4-1) is connected to the internal water inlet area outlet (8) and the internal water outlet area (4-2) is connected to the internal water outlet area inlet (9). The invention has stable water pressure and stable flux, with small size and low cost.

The invention discloses an electro-hydraulic servo steering system and a steering control method of a multi-axle vehicle and the multi-axle vehicle with the steering system. The electro-hydraulic servo steering system comprises a hydraulic steering system and an electric control system, wherein the hydraulic steering system comprises a variable pump, power-assisted steering oil cylinders and a servo proportional valve; the power-assisted steering oil cylinders are at least arranged on various rear steering axles; the servo proportional valve is used for controlling the trend of an oil path and the flow adjustment; the electronic control system comprises a lower controller and an upper controller; the lower controller is in signal connection with the servo proportional valve on each steering axle and forms closed loop control; and the upper controller is used for calculating a target corner of each steering axle according to a first axle corner and a steering mode. According to the invention, the electronic control systems of a two-stage controller is optimized, so that the servo proportional valve and the lower controller form a small closed loop; the lower controller with high frequency response is matched with the servo proportional valve to ensure the precision; and a programmable logic controller is used for main calculation work and transmitting a corner instruction to the each lower controller. The invention has the advantages of simple structural arrangement, safety, reliability and favorable control stability.

The invention relates to a cold (warm) water circulation energy efficiency control method for a central air-conditioning system, which is characterized in that a water outlet end of an air conditioning unit of a circulation loop is respectively provided with temperature and pressure detections; a water outlet end of an air conditioning load is respectively provided temperature and pressure detections; temperature and pressure detections are respectively arranged between water inlets of a water pump and the air conditioning unit; a cold (warm) water shunt bypass valve is an electrical control valve; and a variable volume pump and the electrical control valve are respectively controlled by detecting the air conditioning unit and the air conditioning load. The water pump and / or the bypass shunt valve are adjusted by respectively detecting the temperature and the pressure at both ends of the air conditioning unit and the air conditioning load so as to meet the requirements of the air conditioning unit, the air conditioning load and the air conditioning effect for the flow rate to achieve the effect that under the best using effect, the system works in the best energy efficiency state,has adaptive ability and can save electric energy over 50 percent.

The invention discloses a novel fabricated vehicle bearing pavement and a construction method thereof. The novel fabricated vehicle bearing pavement is formed by superposing, assembling and laying fabricated reinforced concrete plate members in double layers, wherein double-layer bidirectional steel reinforcement frameworks are uniformly distributed inside upper pavement slabs and lower pavement slabs; lifting rings are embedded on lower parts of the frameworks in advance; rubber films are laid between the upper pavement slabs and the lower pavement slabs; a wear-resistant steel fiber concrete layer is arranged on the upper parts of the upper pavement slabs. The construction method comprises the following steps: 1. fabricating reinforced concrete pavement members; 2. lifting and transporting the prefabricated pavement members; 3. flattening the roadbed, laying the lower pavement slabs, rubber films and upper pavement slabs sequentially, laying the pavement slabs in a manner of staggering from each other according to seams, namely the seams between the slabs are not communicated with one another. The construction quality is easily guaranteed, the prefabricated pavement member is light in structure, high in strength, and convenient to transport and construct, can be repeatedly used and is particularly suitable for laying temporary vehicle bearing roads on the construction site, the rubber films can achieve a buffer effect, the friction force between the pavement slabs can be increased, and the pavement slabs are prevented from slipping.

The invention discloses a hanging type track traffic switch structure. The hanging type track traffic switch structure comprises a switch beam, a movable rail, a driven rail, a main line compensation rail, a siding compensation rail, a main line correction rail, a siding correction rail, a drive device, and the like, wherein a movable rail driving motor is arranged on the switch beam and is connected with the movable rail through a transmission mechanism; the movable rail is hinged with the driven rail; the movable rail is connected to the switch beam through a pivoting support, and a movable rail fixing shaft is arranged on the movable rail; a main line compensation rail drive device, a siding compensation rail drive device, a main line correction rail drive device and a siding correction rail drive device are fixed to the switch beam, and the main line correction rail and the siding correction rail are both hinged to the switch beam through a rotating shaft; and the main line compensation rail drive device is connected with the main line compensation rail, and the siding compensation rail drive device is connected with the siding compensation rail and the like. According to the hanging type track traffic switch structure disclosed by the invention, the problems that a body of a sky train is oblique when the sky train passes through a switch, and the passing requirements of a steering frame vehicle braked by a pincer brake cannot be met, are solved.

The present invention discloses a gas-electric hybrid system and a vertical take-off and landing flying vehicle with the same. The gas-electric hybrid system comprises an air inlet provided on the windward surface and a pressurization system which communicates with the air inlet and is used for pressurizing air entered through the air inlet. The pressurization system comprises a compressor. The inlet of the compressor communicates with the outlet of the air inlet. The outlet of the compressor communicates with the air inlet of a gas generator. The gas generator is provided with a fuel inlet and a plurality of gas outlets. The plurality of gas outlets communicate with a plurality of turbofan thrusters through gas pipelines. The plurality of turbofan thrusters are used for providing liftingforce for take-off and landing of the aircraft and / or adjusting the flying attitude of the aircraft. The gas-electric hybrid system further comprise a motor for providing driving force and a battery module for supplying power for the motor. The motor is connected with the compressor and / or a ground traveling mechanism through a switching device so as to realize the switching control between driving the ground traveling mechanism and driving the compressor.

The invention relates to a slurry curing agent, which is characterized in that the curing agent is formed by mixing the raw materials in percentage by weight: 10 percent to 50 percent of sulphoaluminate compounds, 5 percent to 40 percent of modified starch, 13 percent to 60 percent of fly ash, 1 percent to 10 percent of plaster and 1 percent to 3 percent of exciting agents, wherein 5 percent to 35 percent of curing agents are added according to the water content and the ingredients of slurry, the mixed materials are stirred for 3 to 10 minutes, and the slurry can be cured through being placed for 24 hours to seven days after the flowability loss. The pH value of condensate leaching liquid is 6 to 9, the condensate is similar to the soil, the soil hardening is overcome, the plant root breathing and the moisture evaporation and infiltration can be conveniently realized, the compression strength can meet the second ploughing and oilfield vehicle passing requirements, heavy metal ions in the slurry are encapsulated and fixed in the slurry and can not be free through ion exchange, macromolecular package and adhesion, and the harmless effect is realized.

The invention discloses an intelligent traffic control method based on image processing. The intelligent traffic control method comprises the following steps of obtaining video image data of a currentroad junction; analyzing and processing the video image data; judging the video image data; generating a passing rule, and distributing a passing command. The intelligent traffic control method has the advantages that the traffic condition information is detected and transmitted in an image way, and the passing rule is generated according to the actual passing conditions; the traffic conditions can be visually judged, the passing command can be accurately distributed, and the traffic can be intelligently and efficiently controlled; the passing efficiency of pedestrians and vehicles is improved, the possibility of traffic jam is reduced, and the passing requirement of the pedestrians and the vehicles is met.

The invention discloses a secondary liquid slag temporary storage system with flow temperature monitoring and controlling functions. A slag inlet is formed in the upper portion of a slag ladle shell. A plurality of slag outlets are formed in the side face of the bottom of the slag ladle shell. Each slag outlet is composed of a brick cup and a fixed-diameter nozzle. A stopper is arranged in each slag outlet, and each stopper comprises a stopper head, a stopper rod and a stopper control device. Each brick cup is provided with a brick cup runner and a fixed-diameter nozzle containing cavity communicating with the brick cup runner. Each fixed-diameter nozzle is installed in the corresponding fixed-diameter nozzle containing cavity. Each brick cup runner communicates with the slag ladle shell and an inlet of a fixed-diameter nozzle inner runner of the corresponding fixed-diameter nozzle. Each stopper rod is connected with the corresponding stopper head and the corresponding stopper control device. Each stopper control device is used for controlling the flow passage area between the corresponding stopper head and the corresponding fixed-diameter water nozzle. A sealing cover is arranged outside each fixed-diameter nozzle, and the bottom of the sealing cover is provided with a slag falling pipe. According to the secondary liquid slag temporary storage system, the liquid slag temporary storage function and the flow temperature monitoring and controlling functions can be achieved, the liquid slag is subjected to subsequent pelletizing process continuously and stably, and the secondary liquid slag temporary storage system can be widely applied to liquid slag pelletizing waste heat recycling systems.

The invention relates to a method for calculating the minimum and maximum values of dataflow in sliding window, and a relative system, wherein the method simulates present data into a waveform curvature, calculates the highest peak value or valley value and the value of novel data in the window, to take value between the two values, and stores the data at slope in the waveform shape as history data. When novel data is added or old data is deleted, the data is compared with stored history data to directly output the maximum or minimum values of present data, and adjust stored history data. The system comprises a device for calculating maximum and minimum values, a history data memory, and a history data refresh device. Compared with traditional method, the invention can avoid storing all history data, and avoid scanning all stored history data when calculates the maximum and minimum values. The invention can improve the property of data analysis system, to be used in bond information statistic analysis, website log content statistic analysis or the like.

The invention belongs to the field of building structures, and in particular relates to a design structure for the entrance and exit of a subway station in a narrow area of ​​urban roads. The entrance and exit passages are connected from the station hall floor and are connected to the independent first and second climbing sections after the underground section is separated. The first and second climbing sections are stair climbing sections or escalator climbing sections. After the first climbing section and the second climbing section reach the ground, independent ground pavilions are respectively set along one side of the road, and the ground pavilions are longitudinally arranged along one side of the road. The invention effectively reduces the width of the structure, realizes the arrangement of entrances and exits at narrow roads, satisfies the requirements of passenger use and accident evacuation, and improves the overall service level of the subway station.

The invention belongs to the technical field of mechanized bridges, in particular to a width-adjustable erecting mechanism and method for a mechanized bridge. The technical scheme of the width-adjustable erecting mechanism for the mechanical bridge is characterized in that the width-adjustable erecting mechanism comprises a chassis car, an auxiliary car frame (1), a front horizontal bridge-expanding mechanism (2), a support leg stabilizing assembly (3), an erection rack assembly (4), a back horizontal bridge-expanding mechanism (5), a folding pull rod (6) and a tongue-shaped arm assembly (7),a hydraulic system and an electric control system. During operation, the hydraulic system is adopted to drive the front horizontal bridge-expanding mechanism to automatically finish adjusting the width of a bridge span according to the type of travelling equipment as needed. Therefore, travelling requirements for different types of equipment can be met without needing a manual-operated width adjusting device and a widening part of the mechanical bridge. The trafficability, maneuverability, working efficiency and adaptability are all improved. The width-adjustable erecting mechanism and methodfor the mechanized bridge are adapted for multiple operation scenarios including natural disaster rescue such as anti-seismic and flood-fighting efforts and defense efforts of troops.

The invention discloses a control device for controlling flow of liquid molten slags. The control device comprises a slag ladle outer shell, brick cups, fixed diameter nozzles and stopper rods, wherein a slag inlet is formed in the upper part of the slag ladle outer shell; a plurality of slag outlets are formed in the side surface of the bottom of the slag ladle outer shell; the slag outlets are composed of the brick cups and the fixed diameter nozzles; the slag outlets and the stopper rods are in one-to-one correspondence; the stopper rods comprise stopper rod heads, stopper rod bars and stopper rod control devices; brick cup runners and fixed diameter nozzle accommodating cavities which communicate with each other are formed in the brick cups; the fixed diameter nozzles are mounted in the fixed diameter nozzle accommodating cavities; one ends of the brick cup runners communicate with an inner cavity used for accommodating the molten slags in the slag ladle outer shell; the other ends of the brick cup runners communicate with inlets of fixed diameter nozzle inner runners of the fixed diameter nozzles; one ends of the stopper rod bars are connected with the stopper rod heads; the other ends of the stopper rod bars are connected with the stopper rod control devices; and the stopper rod control devices are used for controlling the through-flow area between the stopper rod heads and the fixed diameter nozzles. According to the control device, the function of controlling the flow of the molten slags can be achieved, the service life of the stopper rods is prolonged, and the molten slags are continuously and stably subjected to follow-up pelletization.

An electrohydraulic servo valve capable of realizing quick switching between high-flow oil supply and oil return comprises a working valve body provided with a working oil port and an oil inlet port, a throttle block provided with an axial through hole and an oil return valve body provided with an oil return port, wherein the throttle block, the working valve body and the oil return valve body are connected in turn and axially form an oil return passage which is communicated with the working oil port, the oil inlet port, the through hole and the oil return port; the on and off of an entire oil passage are controlled through an electromagnetic valve which is arranged on the other side of the throttle block and is used for controlling the on and off of the through hole and a ball valve arranged inside the oil return passage; the ball valves comprise an oil return ball valve arranged inside the oil return passage of the oil return valve body and an oil feed ball valve arranged inside the oil return passage of the working valve body; and the electromagnetic valve controls the on and off of the through hole through a switching ball valve arranged on a port of the throttle block. The electrohydraulic servo valve can quickly lift the ball valves to switch on a control loop, and the control loop can control a plunger to further control the on and off of a bigger valve. Moreover, the electrohydraulic servo valve can work under high pressure, and the ball valves connected with the electromagnetic valve are affected little by pressure.

The invention relates to an A-class fire-retardant water-proof rat-proof ant-proof intermediate-voltage special cable for the rail traffic. The cable comprises a conductor; a conductor shielding layer, an insulation layer, an insulation shielding layer, a wrapping layer, a metal shielding layer, a water blocking layer, a flame-retardant layer, an inner sheath, a metal armored layer, and an outer sheath are arranged successively outside the conductor, wherein the conductor shielding layer, the insulation layer, and the insulation shielding layer re in a three-layer co-extruded manner. The innersheath is an extruded halogen-free low-smoke flame-retardant oxygen barrier layer formed by wrapping of two alkali-free glass tapes. The outer sheath is formed by extruding an optical cement by a low-smoke halogen-free fire-retardant rat-proof ant-proof high-polymer material; and the optical cement has the thickness of 10 to 20 microns. The outer sheath is a polyvinyl chloride outer sheath; and awhite-ant-proof plant additive that is non-toxic and is harmless to the human body and the environment is added into the outer sheath. The cable has characteristics of excellent environmental protection effect and good low-smoke, halogen-free, flame-retardant, waterproof, anti-ultraviolet radiation, rat-proof, and ant-proof performances and the like.

The invention discloses an underground coal mine wire-buried rotary guide drilling tool combination and an industrial control method. The underground coal mine wire-buried rotary guide drilling tool combination comprises a wire-buried water feeder, a wire-buried drill rod, an adapter, a measurement short circuit, a launch control short circuit, a rotary guide drilling tool and a drill bit which are coaxially connected in sequence; a control center communicates with insulated wires buried in the wire-buried water feeder and the wire-buried drill rod; the insulated wires are gathered into a bundle in the adapter and then connected with a measurement probe in the measurement short circuit; the measurement probe is connected with the launch control short circuit; the launch control short circuit communicates with a control unit in the rotary guide drilling tool through the insulated wires; and the control center sends an instruction, the measurement short circuit transmits back attitude information of the drilling tool in a hole, a pushing palm on the rotary guide drilling tool pushes the well wall with different pushing forces according to the instruction, and continuous three-dimensional guiding is achieved. According to the underground coal mine wire-buried rotary guide drilling tool combination and the industrial control method, hole bottom power supply and signal transmission can be achieved, the data size and stability of signal transmission are improved, the overall strength of the drill rod is enhanced, the pressure on-way loss in long drilling construction is reduced, the stratum adaptability and directional drilling efficiency are improved, and the smoothness of the directional drilling track is ensured.

The invention discloses a method for lowering detecting dose of a radiation imaging system. The system comprises a ray source, a front collimator and an array detector, wherein a detecting channel for passing through a to-be-detected object is formed between the front collimator and the array detector; the front collimator is used for collimating rays emitted by the ray source into a sheet fan-shaped beam; the sheet fan-shaped beam penetrates through the detecting channel and then is received and imaged through the array detector; the width of a complete shadow area of the sheet fan-shaped beam, when the sheet fan-shaped beam reaches an incident window of each detector in the corresponding array detector, is matched with the width of the ray incident window of the detector. The width of the incident window area of the sheet fan-shaped beam is matched with the width of the ray incident window of the detector through the front collimator, so that not only can the rays of the complete shadow area be effectively utilized to scan and image, reduce useless rays entering the detector and guarantee the image quality, but also the quantity of rays radiated on the detected object can be reduced as much as possible to lower the detecting dose.

The invention discloses a semitrailer used for transporting commercial vehicles. A chassis of the semitrailer is respectively provided with a front platform, a rear platform and a movable platform used for loading the commercial vehicles, wherein the front platform is arranged at the front part of the chassis of the semitrailer and extends to the obliquely upward direction of a tractor of the semitrailer; the rear platform is arranged at the rear part of the chassis of the semitrailer and extends to the tail direction of the semitrailer; the movable platform is arranged between the front platform and the rear platform, a first end of the movable platform is hinged with a cross beam of the chassis of the semitrailer, and a second end of the movable platform extends to one side of the tail of the semitrailer; the movable platform is provided with a lifting piece and a movable support rod used for limiting the movable platform after the movable platform is lifted in place; and the movable support rod is provided with a hinge end and a sliding end, the hinge end is hinged with the movable platform, the sliding end slides in chutes arranged at both sides of a girder of the chassis of the semitrailer through a sliding pin, and the movable support rod is positioned through a positioning pin after the sliding end slides in place. The semitrailer used for transporting the commercial vehicles has good transportation profit and facilitates vehicle loading and unloading.

The invention discloses and aims at providing a production process of an ecological ore steel slag permeable pavement brick. The ecological ore steel slag permeable pavement brick comprises the raw materials of mud-free river sand, cement, a steel copper slag and a tailing slag, the river sand and the steel copper slag are evenly distributed to from an aggregate, a base stock is formed through thecement, and the problems of high consumption of the cement in the cement pavement brick, poor crushing resistance and fracture resistance, and easily cracking of the brick surface are expected to besolved.

The invention discloses a single-track railway tunnel full cross-section excavation rack. The single-track railway tunnel full cross-section excavation rack includes bottom beams, stand columns, lateral fixing platforms, lateral extensible sleeve pipes, upper part working platforms, middle part working platforms, front part extensible sleeve pipes, middle part turnover working platforms, upper door beams, lower door beams, a crawling ladder, and an escaping rod, wherein the stand columns are mounted on the upper parts of the bottom beams, an door-shaped integral structure is formed by the stand columns, the upper door beams and the lower door beams, the lateral working platforms are mounted on the laterals of the stand columns, the upper part working platforms are mounted on the upper doorbeams, and the middle part working platforms are mounted on the lower door beams; the front extensible sleeve pipes are mounted on the lower door beams and the lateral working platform; the middle part turnover working platforms are mounted inside the stand columns; the crawling ladder is mounted on the rack, and the escaping rod is mounted between the upper part working platform and the ground;and guardrails are mounted on the upper part working platforms, people can be prevented from falling, and safety of working personnel is ensured. The single-track railway tunnel full cross-section excavation rack is reasonable in structure, humanized in design, high in fracture surface applicability, and good in safety protection measure, and the maximum operating space for other processes of tunnel excavation is ensured.

The invention provides a temperature control water nozzle comprehensive detection machine which comprises a water supply system,a detection device, a programmable logic controller and a computer. The water supply system comprises a water storing system and a delivery pump. The temperature control water nozzle comprehensive detection machine is characterized in that the water storing system comprises a hot water producing tank, a hot water feed tank, a cold water producing tank and a cold water feed-water tank; the hot water producing tank is communicated with the hot water feed-water tank and supplies water to the hot water feed-water tank through a transfer pipeline which is provided with a transfer pump; the cold water producing tank is communicated with the cold water feed-water tank and supplies water to the cold water feed-water tank through the transfer pipeline which is provided with the transfer pump; the hot water feed-water tank and the cold water feed-water tank are connected with measured products through a water supply pipe; the hot water producing tank and the hot water feed-water tank are respectively provided with heating devices and temperature sensors; the cold water producing tank and the cold water feed-water tank are respectively provided with cooling devices and temperature sensors; the programmable logic controller is respectively connected with the heating devices, the cooling devices and the temperature sensors. The temperature control water nozzle comprehensive detection machine has the advantages of being simple and compact in structure, high in detection precision, small in errors and the like.

The invention provides an integrated filtration device. The integrated filtration device comprises at least a filter; the filter is provided with an oil inlet and an oil outlet; a drain hole communicated with the outside is formed in the bottom of the filter; a tubular first filter element is nested into the filter; the filter fineness of the first filter element ranges from 2 to 5 microns; a second filter element is mounted in the first filter element; the filter fineness of the second filter element ranges from 25 to 35 microns; the oil inlet of the filter, the first filter element, the second filter element and the oil outlet are orderly combined to form a filtering oil way allowing an oil fluid to pass through. The two stages of filter elements inside the filter are integrated so that the space occupied can be reduced; besides, the filtering effect of the oil fluid after passing through the two stages of the filter elements can be improved; according to the integrated filtration device, after the oil fluid passes through the first filter element, free water in the oil fluid can be filtered while impurities in the oil fluid are filtered out, and furthermore, emulsified water in the oil fluid can be aggregated into the free water; subsequently, the oil fluid passes through the second filter element so that the left free water in the oil fluid can be filtered out; finally, water and oil in the oil fluid can be separated from each other.

The invention relates to a marine modular foot bridge (foot walk pavement) deck structure, characterized by comprising an assembled retracting deck and pavement structure composed of a plurality of cellular block components, a plurality of railing components and a plurality of support components, the railing components are fixedly connected to two sides of the cellular block components, the support components are connected with the bottoms of the cellular block components through hinges, the cellular block components comprise a cellular block unit, a link and a hinge, vertical contact surfaces of the cellular block units are provided hinges, the cellular block units form the assembled retracting deck and pavement through the hinges and inserted links. The marine modular foot bridge (foot walk pavement) deck structure has the advantages that the structure is of modular design and available for retracting storage and can be flexibly assembled into deck and pavement structures to meet the need for transferring among ships and transferring among internal deck layers; when acting as a deck structure, the structure may be used to transfer personnel or the sick and wounded between two ships to adapt to relative movement of the ships; when the structure acts as the pavement structure, a ramp can be placed by using internal stairs for transferring the sick and wounded among the different deck layers with the stretcher trolley.

The invention discloses a flow adjusting valve, a heat pump system and a control method. The flow adjusting valve comprises a valve seat. A first opening and a second opening are formed in the valve seat. The valve seat is internally provided with a main flow way and a bypass flow way which communicate with the first opening and the second opening. The valve seat is further internally provided with a first valve element used for opening and closing the main flow way and a second valve element used for opening and closing the bypass flow way. The first valve element is linked with the second valve element. The flow adjusting valve is provided with the main flow way and the bypass flow way, the flow state in the main flow way and the flow state in the bypass flow way are changed by changing the position of the first valve element and the position of the second valve element so that different flow requirements can be met, and use is convenient; and in addition, due to the fact that the first valve element and the second valve element have a linkage relation, the two valve elements can be linked only by driving one valve element, and the structure is simple.

The invention discloses a pedestrian temporary steel bridge and micro steel pipe pile connecting structure and a construction method thereof. The pedestrian temporary steel bridge and micro steel pipepile connecting structure comprises a steel bridge frame support which is formed by welding longitudinal channel steel and transverse channel steel; an anti-skid steel plate is fixed on the surface of the steel bridge frame support; the two ends of the steel bridge frame support are fixed to a micro pile through bolts; and steel pipe guardrails are arranged on the two sides of the steel bridge frame support. According to the pedestrian temporary steel bridge and micro steel pipe pile connecting structure and the construction method thereof, as a fixing point does not need to be arranged for the erection of a temporary steel bridge, the construction input is saved, and the construction period is shortened; through adoption of bolt connection, the temporary steel bridge can be transferred to other construction sections or construction sites after being detached so that the pedestrian temporary steel bridge and micro steel pipe pile connecting structure conforms to a green construction concept; and as the connection mode provides a reliable force bearing point for the temporary steel bridge, the pedestrian temporary steel bridge and micro steel pipe pile connecting structure is safeand reliable, the cost is reduced, and the effect is improved.

The invention relates to a valve ball type check valve. The valve ball type check valve comprises a valve body, wherein an inlet and an outlet which are used for being connected with adjacent pipelines are arranged on the valve body; a valve seat and a ball sleeve are arranged in the valve body; a valve ball body matched with the valve seat is arranged in the ball sleeve; the valve ball body is movably arranged in the ball sleeve; an overflow port communicates with the outlet and is arranged on the ball sleeve; and the axes of the valve seat and the ball sleeve are obliquely arranged relativeto the inlet direction and / or the outlet direction of the valve body. According to the valve ball type check valve, whether the valve ball type check valve is vertically installed, horizontally installed or obliquely installed at a proper angle, the ball sleeve can be kept in an oblique state, the valve ball can move towards the valve seat by virtue of self-weight, and the reliable closing of a valve port is guaranteed; and compared with the prior art, the valve ball type check valve can adapt to different installation angles, is good in universality and wide in application range, and can fully exert the characteristics of simple structure, low cost, reliable performance and convenient maintenance.

The invention discloses a reinforcement structural form of an embedded accommodation ladder of an ultra-large type container ship. The reinforcement structural form comprises two local reinforcing frames, an open hole, accommodation ladder transmission shafts and rotary supporting plates, wherein the two local reinforcing frames are arranged in a warehouse of the ultra-large type container ship, each local reinforcing frame comprises a vertical-direction girder and a local toggle plate, the local toggle plates are close to the areas of boardsides, and the vertical-direction girders are arranged on one sides, back to the local toggle plates, of the local reinforcing frames; the open hole is formed in an outer plate of the ultra-large type container ship, and the open hole penetrates into the warehouse of the ultra-large type container ship; the accommodation ladder transmission shafts are arranged in the open hole in the length direction of a ship body of the ultra-large type container ship, and the accommodation ladder transmission shafts are located on one sides, facing the vertical-direction girders, of the local toggle plates; and the rotary supporting plates are rotatably connected to the accommodation ladder transmission shafts, and the rotary supporting plates support an accommodation ladder. According to the reinforcement structural form of the embedded accommodation ladder of the ultra-large type container ship, the form of the open hole of the outer plate is optimized through the reasonable design, and the requirement for fatigue strength is met; and in addition, the positions of the local reinforcing frames are arranged, the sizes of the local reinforcing frames are optimized, the strength of the open hole position of the outer plate of the ship body is met, the passing requirements of the personnel are met, and meanwhile the mechanical operation of the accommodation ladder is guaranteed.

The invention discloses a hydraulic pump and sprayer based open type isothermal compressed air energy storage system and method. The system comprises an electric machine / power generator which is connected with a hydraulic pump / turbine, wherein the hydraulic pump / turbine communicates with a reversing valve; the reversing valve separately communicates with a first working cavity and a second workingcavity through a first valve group; the first working cavity and the second working cavity separately communicate with a high-pressure gas storage tank through a second valve group; pressure monitoring devices are arranged on the first working cavity, the second working cavity and the high-pressure gas storage tank; and a spraying mechanism and a third valve group are arranged on the first working cavity and the second working cavity. The hydraulic pump and sprayer based open type isothermal compressed air energy storage system adopts the hydraulic pump and the sprayer to realize isothermal compression / expansion, so that compression work is reduced, expansion work is improved, and energy storage efficiency and energy utilization efficiency of the system are improved; and the reversing valve is adopted, so that two working cavities alternatively work, and therefore, a compression / expansion time ratio of the system is increased, continuous energy storage / release is realized, and systemcapacity and manufacturing cost are reduced.

The invention provides a method for processing a swirler and a method for validating air flow of the swirler. The processing method comprises the steps of: 1) modeling a theoretical size of the swirler; 2) determining the range of the runner of the model; 3) splitting the swirler into two parts to perform additive manufacturing or subtractive manufacturing; 4) controlling the flatness, the processing benchmark and the perpendicularity of the splitting surfaces of two splitting pieces when processing the splitting surfaces, and separately processing the split parts; and 5) processing and assembling the splitting pieces according to the model. The validating method comprises the steps of: adjusting and validating the flow data by a standard specimen for several times so that the detection data is consistent with the standard specimen; testing the flow of the maximal air runner by a number of assembly parts; testing the flow of the minimal air runner by a number of assembly parts; comparing the average value with the designed theoretical flow value; validating that the size and the tolerance of the designed structure satisfy the flow requirement if the flow detection average value accords with the designed calculated value; and otherwise, validating that the requirement is not satisfied. By adoption the methods provided by the invention, the swirler can be manufactured and measured rapidly and precisely.

The invention provides a ball valve capable of eliminating cavitation and relates to the field of pipeline control valves. The problem that valve internals of an existing ball valve are damaged due to the cavitation phenomenon is solved. The ball valve capable of eliminating cavitation comprises a first valve body part, a second valve body part, a valve rod, a ball body, valve seats, springs and a fixing shaft and further comprises a spherical surface wall plate provided with through holes. An outlet runner of the ball body is covered by part of the spherical surface wall plate. The ball valve capable of eliminating cavitation can effectively eliminate cavitation when the opening degree is small, and can meet the requirement of the valve for higher flow when the opening degree is large and the cavitation phenomenon is unobvious, in addition, the structure is simple, machining is convenient, assembly is facilitated, and the ball valve has the characteristics of being capable of saving energy and efficient.