119results about How to "Fully take away" patented technology

The invention relates to a low-density ablation thermal insulation type composite and a preparation method thereof. The composite adopts phenolic aerogel of the nanometer particle structure as a matrix and adopts a flexible fiber blanket or a fiber weaving body as a reinforcement body, and the composite is obtained through the steps of phenolic resin preparation, phenolic resin solution preparation, thermal treatment of the flexible fiber blanket or the fiber weaving body, steeping of the flexible fiber blanket or the fiber weaving body with the phenolic resin solution, a sol-gel reaction, aging, drying and curing of the composite and the like. Compared with the prior art, the composite is excellent in thermal protective performance, good in mechanical performance, high in designability, simple in preparation technology, low in cost and easy to process and mold, promotes later-period dimensional cutting, meets different thermal protective needs under the medium heat flow and medium and low heat flow environments, and can be applied to manned space flight and deep space detection aircrafts, outer thermal protective layers of various tactic and strategic weapons working for a short time, and inner ablation heat insulation and thermal protective layers of engines, disposable hypersonic vehicles and the like.

The invention discloses an active phase-array antenna cooling plate electromechanical heat coupling design method based on the position of a component. The method includes the steps of determining a parameter of the heating component in an active phase-array antenna T / R assembly, designing the topology shape of a cooling plate flow channel and a geometrical model of an antenna cooling plate according to the position of the heating component, building a finite element model of an antenna, calculating array temperature field distribution of the antenna, calculating a phase error caused by structure deformation of the antenna and excitation current amplitude errors and phase errors caused by temperature changes, calculating electric performance of the active phase-array antenna, and determining a design scheme of the active phase-array antenna cooling plate according to gain index requirements. By means of the method, the active phase-array antenna cooling plate scheme based on the position of the component can be designed, heat generated by the heating component can be effectively dissipated, influences of the temperature changes on structure deformation and excitation current amplitude and phase can be analyzed in a quantitative mode, and the aims of improving temperature distribution and guaranteeing effective work are achieved on the premise that requirements of the electric performance and the structure mechanical performance of the antenna are met.

The invention relates to a cooling structure of a permanent magnet motor, in particular to a fully-sealed forced air ventilating cooling structure of the permanent magnet motor, which solves the problems of poor cooling property and limited application range of the existing permanent magnet motor. The fully-sealed forced air ventilating cooling structure of the permanent magnet motor comprises a machine base, a front end cap, a back end cap, a front bearing, a back bearing, a stator structure and a rotor structure; a radial air inlet hole, a third air ventilating gap, an axial air ventilating hole, a first air ventilating gap and a radial air outlet hole form a main cooling air path structure; an axial front air inlet hole, a second air ventilating gap and an axial front air outlet hole form a front auxiliary cooling air path structure; an axial back air inlet hole, a fourth air ventilating gap and an axial back air outlet hole form a back auxiliary cooling air path structure; front fan blades are fixedly arranged at the front end surface of a rotor iron core; back fan blades are fixedly arranged at the back end surface of the rotor iron core. The fully-sealed forced air ventilating cooling structure is suitable for the permanent magnet motor.

The present invention relates to a scroll compressor and floating style of vortex disk and oil circuit control type. The scroll compressor comprises a static vortex disk and a dynamic vortex disk joggled for each other, a vent is provided on center back of the static vortex disk, a center cavity between of the static vortex disk and the dynamic vortex disk communicate the vent, an upper bracket is the main bracket of the crankshaft. A compressor hull comprises an upper hull, a main hull and a lower hull, the region of the motor and the oil pool is unaided pressure region around by the main hull and the upper racket, an airproof groove on the upper surface of the upper bracket divides the dynamic vortex disk to different back pressure regions, a guide channel of high pressure gas on the upper bracket communicates region of motor lied, an intercommunicating pore is provided on high back pressure region between the guide channel and the dynamic vortex disk. The present invention has simple and reasonable structure, convenient process and good wear capability.

The invention relates to a permanent magnetism motor and concretely relates to a permanent magnetism traction motor for subway. The problems of poor cooling performance, a limited range of application, poor operational reliability, a complex structure and a large column of a present permanent magnetism motor are solved. The permanent magnetism traction motor for subway comprises a front end cover, a back end cover, a front bearing, a back bearing, a front bearing cover, a back outer bearing cover, a stator structure, and a rotor structure. The rotor structure comprises a rotation shaft, a rotor iron core, a front rotor clamping ring, a back rotor clamping ring, a circular nut, a front permanent magnet baffle plate, a back permanent magnet baffle plate, a front permanent magnet baffle plate clamping ring, and a back permanent magnet baffle plate clamping ring. A main cooling air path structure is formed by an axial direction air inlet, an axial direction air vent, an axial direction exhaust vent. An auxiliary cooling air path structure is formed by a ventilation chamber. A leading-out wire, horizontal heat radiating ribs are a rotary transformer are also comprised. The invention is suitable for a subway driving system.

The invention provides a reaction device for dispersing and blending battery materials. The reaction device comprises a barrel and a reaction box, wherein the barrel is provided with a feeding barrel, a support rod, a motor plate, a first motor, a rotating shaft, a T-shaped stirring rod, a crossed guide tube, a material receiving curved plate, a spiral stirring blade, a second motor and an annular opening; the feeding barrel is vertically arranged at the middle position of the upper end face of the barrel; the reaction box is provided with a water inlet, a movable plate, a push rod, a seal ring, a valve, an electric heating plate, a partition plate, a pulling frame and a box door; and the reaction box is arranged at the lower end of the barrel and communicates with the barrel. The T-shaped stirring rod of the reaction device is used for stirring the materials in the feeding barrel along with the rotation of the rotating shaft, so that the materials are mixed together; the bottom surface of the feeding barrel is a downward convex spherical surface, so that the materials are convenient to collect and outflow from the middle of the bottom surface; and the crossed guide tube is convenient for enabling the materials mixed together to outflow from multiple ports, and a small quantity of the battery materials is convenient to outflow uniformly, so that blending is facilitated.

The invention relates to the technical field of drive motor controllers, in particular to a novel drive motor controller housing and a novel drive motor controller, which comprises a housing. An innerside of the housing is provided with a mounting chamber, which is used for mounting a capacitor subassembly, an IGBT subassembly and a busbar subassembly; a cooling plate is arranged on the bottom ofthe housing; an inner side of the cooling plate is provided with a cooling chamber which is correspondingly arranged to the upper and lower parts of the mounting chamber; the upper plate surface of the cooling plate is provided with a port which is in connection with the cooling chamber and is used for mounting the IGBT subassembly; and the housing is also provided with a water inlet and a wateroutlet respectively, which are in connection with the cooling chamber. The bottom of the novel drive motor controller housing provided by the invention adopts a full water cooling design to increase the heat exchange area and improve the heat exchange efficiency. Further the housing has the characteristics of high adaptability, high versatility and light weight, etc.

The invention provides a pump body assembly and a compressor. The pump body assembly comprises a main shaft, the main shaft is provided with slide plate slots, the tail end of every slide plate slot is a backpressure oil chamber, the backpressure oil chambers are at least a part of an oil channel, the oil outlets of the backpressure oil chambers are located at the tops of the backpressure oil chambers, and the inlets of the backpressure oil chambers are lower than the oil outlets of the backpressure oil chambers, so a lubricating medium enters the backpressure oil chambers through the oil inlets of the backpressure oil chambers, fills up the backpressure the oil chambers, and flows out from the tops of the backpressure oil chambers. The problem of insufficient backpressure of slide platesin the prior art is solved in the invention.

The invention discloses a cooling water jacket for a motor of an electrical vehicle, which comprises a double-layer structure. An outer-circle shell layer (1) and an inner-circle layer (2) of a water cooling cavity are welded into one part. The outer-circle shell layer (1) is provided with a cooling water pipe (3). The inner-circle layer (2) of the water cooling cavity is provided with a spiral trapezoidal radiating rib (4), which forms a spiral water cavity (5) with the outer-circle shell layer (1). The invention has the advantages that by adopting the double-layer structure proposal, the outer-circle shell layer and the inner-circle layer of the water cooling cavity are welded together into one part, which not only plays a good role of leak proofing and water sealing but also leads a motor base to have the good strength; the inner-circle layer of the water cooling cavity is designed into the spiral trapezoidal radiating rib to form a spiral hollow cavity together with the outer-circle shell layer, which greatly increases radiating area, enhances radiating efficiency and increases heat transfer capacity. Therefore, the heat produced by the motor can be taken away completely, the output power of the motor is increased by 150 percent and the motor efficiency reaches 93 percent.

The invention provides an oil-immersed transformer which comprises an oil tank. The oil tank is full of high-temperature-resisting insulation oil, a transformer core is installed in the oil tank and is immersed in the high-temperature-resisting insulation oil, a tank cover is arranged above the oil tank and is in sealed connection with the oil tank, a plurality of low-voltage sleeves, a plurality of high-voltage sleeves and a tapping switch are arranged on the tank cover, and the low-voltage sleeves, the high-voltage sleeves and the tapping switch are connected with the transformer core. The oil-immersed transformer is characterized in that a cooling oil way is formed in the transformer core, an abrasion-resisting seal part is embedded on the periphery of the tank cover, a press strip is arranged on the end plane of the periphery of the upper portion of the oil tank, and the tank cover is fixedly connected with the oil tank through bolts, so that the seal part on the tank cover is pressed above the press strip. By adopting the technical scheme, heat dissipation and cooling effects are good. In addition, the sealing performance is improved, the dangers of combustion and explosion caused by high-temperature-resisting insulation oil leakage can be prevented, and meanwhile the short circuit phenomenon caused by the fact that water vapor and dust enter the oil tank can be prevented.

The invention relates to the technical field of the Internet, and discloses a router cooling device with an automatic dust removal function, which comprises a router, the outer part of the router is fixedly connected with a shell, the outer part of the shell is fixedly connected with a box body, and the inner part of the box body is fixedly connected with an annular coil; a supporting rod is movably sleeved with the annular coil, a permanent magnet is fixedly connected to the interior of the supporting rod, fan blades are movably connected to the upper end of the supporting rod, a reciprocating device is movably connected to the lower end of the supporting rod, an air inlet is formed in the box body, and a filter screen is movably connected to the interior of the air inlet; and a trigger device is movably connected to the upper end of the filter screen, an electromagnet is fixedly connected to the right end of the trigger device, a sliding rod is sleeved with the electromagnet, and a brush head is sleeved with the sliding rod. The device has the advantages that the temperature of the router can be reduced, and dust absorbed by the fan can be automatically removed.

The invention belongs to the technical field of air conditioners, and discloses a self-cleaning control method for an air conditioner. The problems that the whole self-cleaning time is long and the normal experience of users is affected due to the fact that a self-cleaning control method of an existing air conditioner generally has a low frosting speed are solved. The air conditioner includes a refrigerant circulation system and a solution circulation system. The self-cleaning control method includes the steps that under refrigeration working conditions, the frequency of a compressor is reduced, and a four-way valve is reversed; the frequency of the compressor is increased, the opening of an electronic expansion valve is reduced, the rotation speed of an outdoor fan of the air conditioneris reduced, the voltage of an indoor solution film and the voltage of an outdoor solution film are increased, and an outdoor heat exchanger is enabled to frost; after the outdoor heat exchanger frosts, the electronic expansion valve is first closed, and then a solenoid valve on the low pressure side of the compressor is closed after a preset time; and the outdoor heat exchanger is heated, and defrosting cleaning is carried out on the outdoor heat exchanger. According to the self-cleaning control method for the air conditioner, the self-cleaning efficiency of the outdoor heat exchanger can be improved, and the user experience is improved.

The invention relates to a sealing water cooling structure for a motor shell, which comprises an integrally formed shell with a speed reducer box part and a motor box part. The motor box part is separated from the speed reducer box part by an arranged separation wall; a motor front bearing seat is arranged on the separation wall; a positioning flange protruding outwards is formed at one end of themotor box part, which is adjacent to the speed reducer box part; a part between the positioning flange and a motor box part circumference outer wall section of a motor box part port end is a waterwaydisposing part; a spiral waterway groove surrounding the circumference is formed on the outer surface of the waterway disposing part; a waterway sealing jacket sleeves the waterway disposing part inan interference fit mode; one end of the waterway sealing jacket is positioned by the positioning flange; a matching seam of the waterway sealing jacket and the positioning flange is sealed by welding, and a matching seam of the other end of the waterway sealing jacket and the waterway disposing part port end is sealed by welding, so that the spiral waterway groove forms a closed cooling waterway;a water inlet and a water outlet are respectively formed on the side wall of the waterway sealing jacket; and a plurality of heat dissipation ribs are arranged on the outer wall surface of the waterway sealing jacket.

The invention discloses a system and method for producing hydrogen peroxide through an anthraquinone method. The system comprises the four unit processes of hydrogen dissolving, hydrogenation, oxidation and extraction, wherein a hydrogenation unit comprises a series fixed bed and upflow-type tubular reactors, and working liquid and hydrogen are subjected to a hydrogenation reaction in the hydrogenation unit to obtain hydrogenation liquid; an oxidation unit comprises an oxidation tower, the hydrogenation liquid and oxygen-containing gas are subjected to an automatic oxidation reaction to obtainoxidation liquid; and an extraction unit comprises an extraction tower, hydrogen peroxide in the oxidation liquid is extracted by the water, and thus a high-concentration hydrogen peroxide product isobtained. According to the system and method, the anthraquinone hydrogenation reaction rate can be significantly improved, the anthraquinone hydrogenation reaction efficiency can be significantly improved, the uniformity of the reaction process is maintained, side reactions are less, the obtained hydrogenation liquid is good in quality, small in by-product number and low in viscosity, the gas-liquid mass transfer rate in the oxidation process is increased, the extraction efficiency in the extraction process is improved, the oxidation time is significantly shortened, and the number of actual tower plates of the extraction tower is decreased.

The invention discloses nano-pesticide fine grinding equipment. A main shaft fixing cavity is fixedly formed in the top surface of a rack; a grinding cylinder is fixedly arranged on the top surface of the rack and located on the left side of the main shaft fixing cavity; a driving cavity is fixedly arranged on the top surface of the rack and located on the right side of the main shaft fixing cavity; a main shaft is arranged inside the grinding cylinder; the right end of the main shaft penetrates through the main shaft fixing cavity and is arranged in the driving cavity; an auxiliary belt wheel is fixedly arranged at the end, in the driving cavity, of the main shaft; a motor is arranged in the rack through a motor mounting base; and a main belt wheel is fixedly arranged at the output end of the motor. In the circulating process of materials in the grinding cylinder, the main shaft drives a dispersion turbine, a grinding turbine and a diffusion turbine to stir a grinding medium, and the materials are continuously crushed and shaped under the comprehensive action of various forces such as impact, shearing and friction of the grinding medium, so that the particle size is continuously reduced, and the specific surface area is continuously increased.

The invention discloses a stirrer. The stirrer comprises a container seat and a container, the container is connected to the container seat in a threaded manner, the container is provided with an upper opening and a lower opening, the upper opening is provided with a container cover, the lower opening is in threaded connection with the container seat, the lower opening is provided with a containerbottom, a sealing gasket is arranged between the lower opening and the container bottom, a motor, a water tank and a water pump are arranged in the container, stirring blades are arranged above the container bottom, the stirring blades are connected with a stirring shaft, the center of the container bottom protrudes upwards to form a fixing seat, the stirring shaft goes through the container bottom and is connected with the motor, a bearing sleeves the stirring shaft, a heat conducting sleeve sleeves the bearing, the heat conducting sleeve is in interference fit in the fixing seat, an annularsleeve is arranged in the heat conducting sleeve, the sidewall of the fixing seat is provided with a water inlet hole, a check valve is arranged between the water inlet hole and the annular cavity, the water pump is communicated with a water suction tube and a water inlet tube, the water suction tube is communicated with the water tank, the water inlet tube is communicated with the annular cavity, and the water inlet tube is provided with a check valve. The stirrer of the invention can work continuously, and has a high practicability.

The invention discloses an active phase-array antenna cooling plate electromechanical heat coupling design method based on the position of a component. The method includes the steps of determining a parameter of the heating component in an active phase-array antenna T / R assembly, designing the topology shape of a cooling plate flow channel and a geometrical model of an antenna cooling plate according to the position of the heating component, building a finite element model of an antenna, calculating array temperature field distribution of the antenna, calculating a phase error caused by structure deformation of the antenna and excitation current amplitude errors and phase errors caused by temperature changes, calculating electric performance of the active phase-array antenna, and determining a design scheme of the active phase-array antenna cooling plate according to gain index requirements. By means of the method, the active phase-array antenna cooling plate scheme based on the position of the component can be designed, heat generated by the heating component can be effectively dissipated, influences of the temperature changes on structure deformation and excitation current amplitude and phase can be analyzed in a quantitative mode, and the aims of improving temperature distribution and guaranteeing effective work are achieved on the premise that requirements of the electric performance and the structure mechanical performance of the antenna are met.

The invention relates to improved large granule urea combined drum granulating method and equipment. The method comprises the steps of: generating urea granules in a fluidized bed of a combined granulating drum, then discharging the urea granules from the combined granulating drum, enabling the urea granules discharged from the combined granulating drum to enter a moving bed cooler from an inlet at the upper part of the moving bed cooler, forming a dynamic bed layer in the moving bed cooler, enabling cooling air to enter the moving bed cooler via a variable-passage area baseplate arranged on the moving bed cooler, taking away heat of the urea granules through the inverse motion of the dynamic bed layer composed by the urea granules, and discharging and screening the cooled urea granules from the variable-passage area baseplate so as to obtain finished products. According to the method, a combined cooling drum part is saved by adopting the moving bed cooler, so that the large granule urea combined drum granulating process is simplified, energy sources are saved and the cost is reduced.

The invention belongs to the technical field of air conditioners, and provides a self-cleaning control method for an air conditioner. The method aims to solve the problem that the normal experience ofthe user is influenced due to long self-cleaning time caused by the fact that an existing self-cleaning control mode of the air conditioner is generally slow in frosting speed. The air conditioner comprises a refrigerant circulation system and a solution circulation system composed of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storage box. The self-cleaning control method comprises the following steps that under a refrigeration working condition, the opening degree of an electronic expansion valve is reduced, an indoor fan of the air conditioner is shut downand the voltage of the indoor solution film and the voltage of the outdoor solution film are raised, so that an indoor heat exchanger is frosted; after the indoor heat exchanger is frosted, the electronic expansion valve is shut off first, and then an electromagnetic valve at the low pressure side of a compressor is shut off after preset time; and the indoor heat exchanger is heated, so that theindoor heat exchanger is subjected to defrosting cleaning. According to the self-cleaning control method for the air conditioner, the self-cleaning efficiency of the indoor heat exchanger can be improved, and the user experience is improved.

The invention belongs to the technical field of air conditioners, and provides a self-cleaning control method for an air conditioner. The method aims to solve the problem that the normal experience ofthe user is influenced due to long self-cleaning time caused by the fact that an existing self-cleaning control mode of the air conditioner is generally slow in frosting speed. The air conditioner comprises a refrigerant circulation system and a solution circulation system composed of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storage box. The self-cleaning control method comprises the following steps that under a heating working condition, a compressor undergoes frequency reduction, a four-way valve is reversed, the opening degree of an electronic expansionvalve is reduced and the rotating speed of the liquid pump is improved, so that an indoor heat exchanger frosted; after the indoor heat exchanger is frosted, the electronic expansion valve is shut off first, and then an electromagnetic valve at the low pressure side of the compressor is shut off after preset time; and the indoor heat exchanger is heated, so that the indoor heat exchanger is subjected to defrosting cleaning. According to the self-cleaning control method for the air conditioner, the self-cleaning efficiency of the indoor heat exchanger can be improved, and the user experience is improved.

The invention provides a cooling and heating type variable frequency air conditioner of a pure electric bus. The cooling and heating type variable frequency air conditioner of the pure electric bus comprises a first partition plate and a second partition plate which are arranged on the lower side and the upper side of a condenser, the condenser is obliquely arranged with the front end higher than the rear end, the bottom of the first partition plate is abut against a bottom shell while the top thereof is abut against the condenser, the bottom of the second partition plate is abut against the condenser while the top thereof is abut against a top cover, the condenser is separated into a front section, a middle section and a rear section by the first partition plate and the second partition plate, and a condenser fan is arranged behind the second partition plate. During running of the bus, cool air enters via air vents, detours three times under the action of the partition plates, flows through the condenser and then is drawn out from the condenser fan, and then heat of the condenser fan can be brought away fully. Compared with the prior art, air flowing amount for unit area of the condenser is increased by three times, and cooling effect of the condenser fan is greatly strengthened under the condition of same air drawing amount.

The invention belongs to the field of tea processing and treatment, and particularly relates to a full-automatic fresh tea leaf ventilating storage device. The full-automatic fresh tea leaf ventilating storage device comprises a fixing frame; a horizontally-arranged elastic net is fixedly connected into the fixing frame; two horizontally-arranged fixing plates are arranged below the elastic net; vent holes are formed in the side wall of the fixing frame located between the two fixing plates; a plurality of evenly-distributed fixing blocks are fixedly connected to the opposite side walls of thetwo fixing plates; the fixing blocks on the two fixing plates are arranged in a one-to-one correspondence mode; and a vertically-arranged lifting rod is arranged between every two corresponding fixing blocks. By arranging stirring fans, in the ascending and descending process of the lifting rods, each rack can move up and down under the repulsion effect of a magnetic block at the top of each lifting rod and the gravity effect of the rack, the rack moves up and down to drive the corresponding stirring fan to rotate through a corresponding gear on a rotating shaft, and each rotating stirring fan stirs tea leaves on the elastic net; and ventilation and heat dissipation of the tea leaves are further facilitated.

The invention discloses a system and method for producing hydrogen peroxide through an anthraquinone method. The system comprises the four unit processes of hydrogen dissolving, hydrogenation, oxidation and extraction, wherein a hydrogenation unit comprises a series fixed bed and upflow-type tubular reactors, and working liquid and hydrogen are subjected to a hydrogenation reaction in the hydrogenation unit to obtain hydrogenation liquid; an oxidation unit comprises an oxidation tower, the hydrogenation liquid and oxygen-containing gas are subjected to an automatic oxidation reaction to obtainoxidation liquid; and an extraction unit comprises an extraction tower, hydrogen peroxide in the oxidation liquid is extracted by the water, and thus a high-concentration hydrogen peroxide product isobtained. According to the system and method, the anthraquinone hydrogenation reaction rate can be significantly improved, the anthraquinone hydrogenation reaction efficiency can be significantly improved, the uniformity of the reaction process is maintained, side reactions are less, the obtained hydrogenation liquid is good in quality, small in by-product number and low in viscosity, the gas-liquid mass transfer rate in the oxidation process is increased, the extraction efficiency in the extraction process is improved, the oxidation time is significantly shortened, and the number of actual tower plates of the extraction tower is decreased.

A gasoline engine with a firm structure and good heat dissipation comprises an engine cylinder, wherein an air cylinder is mounted in the engine cylinder, an air cylinder liner is arranged in the air cylinder, a water jacket surrounding the air cylinder liner for a cycle is arranged on the periphery of the air cylinder liner, reinforcing ribs are evenly arranged between the air cylinder liner and the air cylinder, the reinforcing ribs, the air cylinder and the outer side wall of the air cylinder liner are integrally molded through casting, and the thickness of the reinforcing ribs is equal to that of the air cylinder liner. The reinforcing ribs are arranged between the outer side wall of the air cylinder liner and the air cylinder, the stability of the air cylinder liner is improved, and distortion or deformation of the side wall of the air cylinder liner is effectively prevented.

The invention discloses a self-cleaning control method for an air conditioner, and belongs to the technical field of air conditioners. The self-cleaning control method for the air conditioner aims tosolve the problem that a self-cleaning control mode of an existing air conditioner is generally slow in frosting speed, so that the whole self-cleaning time is caused to be long, and the normal experience of a user is influenced. The self-cleaning control method for the air conditioner is provided, the air conditioner comprises a refrigerant circulation system and a solution circulation system, wherein the solution circulation system is composed of an indoor solution film, an outdoor solution film, a liquid pump and a liquid storage tank; the self-cleaning control method comprises the following steps that a compressor is enabled to reduce frequency under a refrigeration working condition, a four-way valve is reversed, the opening degree of an electronic expansion valve is reduced, the rotating speed of the liquid pump is improved, an outdoor heat exchanger is frosted; after the outdoor heat exchanger is frosted, the electronic expansion valve is closed firstly, and an electromagnetic valve at the low pressure side of the compressor is closed after a preset time; and the outdoor heat exchanger is heated, so that the outdoor heat exchanger is subjected to defrosting cleaning. The self-cleaning control method for the air conditioner can improve the self-cleaning efficiency of the outdoor heat exchanger, and the user experience is improved.

The invention discloses a mould drying and bottle blank cooling device and a blank injection system. The mould drying and bottle blank cooling device comprises a dew removing fan, a secondary coolingmechanism and a plurality of pipelines. An air inlet of the dew removing fan communicates with the interior of a blank injection machine locking mould of the blank injection system through the corresponding pipeline, and an air outlet of the dew removing fan communicates with an air inlet of the secondary cooling mechanism and the interior of the blank injection machine locking mould of the blankinjection system through the two corresponding pipelines correspondingly so as to discharge dry cold air into the blank injection machine locking mould; and an air outlet of the secondary cooling mechanism communicates with the interior of a manipulator of the blank injection system through the corresponding pipeline so as to discharge the dry cold air into the manipulator. According to the moulddrying and bottle blank cooling device, energy consumption of the dew removing fan is reduced greatly, and the temperature of a mould inside the blank injection machine locking mould can be decreased,it is ensured that the mould does not dew, the surface temperature of a bottle blank inside the manipulator is decreased rapidly, and it is ensured that the manipulator does not dew.

The invention discloses an engine pre-combustion chamber structure and an engine. The engine pre-combustion chamber structure comprises a body extending in a first direction, and a containing space is formed in the body. In the first direction, the first end of the body is sealed by an engine cylinder cover and a spark plug, the second end of the body is provided with a connecting hole, and the containing space is communicated with an engine main combustion chamber through the connecting hole. The area, used for sealing the first end of the body, of the engine cylinder cover is provided with a flow guide part extending in the first direction. The engine cylinder cover is provided with a gas supply channel which extends away from the first end of the body from the first end of the body and inclines relative to the first direction, and the gas supply channel is connected with the flow guide part and used for supplying natural gas to the containing space in the body. According to the engine pre-combustion chamber structure, the situation that natural gas flowing into the body directly leaks into the engine main combustion chamber through the connecting hole without combustion in the body can be reduced, and the CH4 emission of the engine main combustion chamber is reduced.

The invention belongs to the technical field of air conditioners, and provides a self-cleaning control method used for an air conditioner. The self-cleaning control method aims to solve the problem that an existing self-cleaning control mode used for an air conditioner is generally slow in frosting speed, consequently, the overall self-cleaning time is long, and normal experience of a user is affected. The air conditioner comprises a refrigerant circulation system and a solution circulation system consisting of an indoor solution membrane, an outdoor solution membrane, a liquid pump and a liquid storage tank. The self-cleaning control method comprises the steps that under the heating work conditions, the opening degree of an electronic expansion valve is decreased, the voltage of the indoor solution membrane and the voltage of the outdoor solution membrane are increased, and thus an outdoor heat exchanger is frosted; after the outdoor heat exchanger is frosted, the electronic expansionvalve is closed firstly, and then an electromagnetic valve on the low-pressure side of the compressor is closed after the preset time; and the outdoor heat exchanger is heated, and thus the outdoor heat exchanger is subjected to defrosting cleaning. According to the self-cleaning control method, the self-cleaning efficiency of the outdoor heat exchanger can be improved, and the user experience isimproved.

The invention discloses a water-cooled packaging structure of an optical fiber beam combiner. The water-cooled packaging structure comprises a sealing box body, a beam combiner optical fiber and a substrate. An optical fiber inlet and an optical fiber outlet are formed in the opposite side faces of the sealing box body. The beam combiner optical fiber is fixed to the substrate through optical cement. The substrate is then fixed in the sealing box body through optical cement. A liquid inlet and a liquid outlet are further formed in the sealing box body and connected with a water circulating device. The sintered portion of the beam combiner optical fiber is soaked in circulated water. By means of the water-cooled packaging structure, energy can be prevented from being accumulated on the beam combiner, it is ensured that the beam combiner works under a good working state, and then work stability of the beam combiner is improved.

The invention belongs to the technical field of air conditioners, and aims at solving the problems of self-cleaning control methods for existing air conditioners that the frosting speed is low generally, thus the whole self-cleaning time is long, and normal experience of users is influenced. To solve the problems, the invention provides a self-cleaning control method for an air conditioner. The air conditioner comprises a refrigerant circulation system and a solution circulation system. The self-cleaning control method comprises the steps that under a refrigeration condition, the frequency ofa compressor is increased, the opening degree of an electronic expansion valve is reduced, an indoor draught fan of the air conditioner is shut down, the rotary speed of a hydraulic pump is increased,voltage of an indoor solution membrane and voltage of an outdoor solution membrane are increased, and thus an indoor heat exchanger is frosted; after the indoor heat exchanger is frosted, firstly, the electronic expansion valve is closed, and after a preset time is reached, an electromagnetic valve at the low-pressure side of the compressor is closed; the indoor heat exchanger is then heated, andthus frosting cleaning is carried out on the indoor heat exchanger. By means of the self-cleaning control method, the self-cleaning efficiency of the indoor heat exchanger can be improved, and the user experience is promoted.