575results about How to "Achieve flow" patented technology

The invention provides a combined-loading stress corrosion testing apparatus. The apparatus comprises a tension ring; a hermetically arranged environmental container; a gas inlet pipe, a gas outlet pipe, a thermocouple and a pressure sensor which extend into the environmental container from above; upper and lower clamps respectively arranged at the upper and lower ends of the environmental container; a loading bolt in threaded connection with the free end of the lower clamp; a rotary motor connected with the free end of the upper clamp; an electromagnetic stirrer arranged in the lower part of the environmental container; and a magneton arranged in the container. The radial end of the tension ring is fixedly connected with the upper clamp, and the other end of the tension ring is connected with the end, far away from the lower clamp, of the loading bolt; and the tension ring applies tension on the upper and lower clamps through rotation of the loading bolt. A testing method based on the apparatus is used for research on corrosion resistance of a drilling rod, an oil sleeve material and the like in an oil and gas well with high temperature, high pressure and a multiphase flow corrosive medium under complex stress conditions including drawing, torsion and liquid flow impact.

The invention discloses an intelligent dispatching method for home energy management system, which aims at optimizing dispatching control of high-power household appliance loads and distributed energy storage devices in home users. Based on the real-time price, the integer programming method and genetic algorithm is introduced, and the user's preset running time of household appliances and constraint response requirement stipulated by the power grid are satisfied, and combined with the distributed energy storage devices to set the lowest electricity cost as optimized target, and the household electricity load is divided into dispatchable household load and undispatchable household load to realize the optimized control operation of each household appliance load and distributed energy storage device. According to the intelligent dispatching method for home energy management system, the home users, power grid, photovoltaic system and distributed energy storage device are organically linked, and the flow of energy is realized.

The invention discloses a multifunctional cutter storing and disinfecting device which comprises an outer shell (1). The multifunctional cutter storing and disinfecting device is characterized in that a lifting cutter frame (4) is arranged in the inner cavity of the outer shell (1); a lifting device is mounted between the lifting cutter frame (4) and the outer shell (1); an overturn cover (2), an arc-shaped sliding cover (26) or a flexible upper cover (30) is arranged at the upper end opening of the outer shell (1); the overturn cover (2), the arc-shaped sliding cover (26) and the flexible upper cover (30) are respectively connected with the outer shell (1) through an uncovering device; an ultraviolet ray sterilizing device (16) is mounted at the bottom of the outer shell (1); an electromagnetic lock (20) is mounted at an opening joint part of the outer shell (1) and the overturn cover (2). The multifunctional cutter storing and disinfecting device disclosed by the invention is high in degree of automation, automatic in opening and closing, and capable of effectively storing and safely managing cutters; a function of locking cutters is available, so that the cutters are prevented from being used illegally; functions of disinfecting and drying are also available; the sanitary condition is also improved.

A bullet-resistant material is composed of bullet-resistant layer and reinforcing transition layer. Its preparing process includes such steps as spreading high-osmos medium on the surface of said both layers, making a resin-filling port, arranging the spiral vacuumizing tubular wire on mould, loading said both layers and mould in a film case, sealing it, vacuumizing to suck the resin by said layers via said resin-filling port, pressing, solidifying and demoulding.

The invention relates to an advanced oxidation-biological treatment device for non-biodegradable waste water. The device comprises a baffle plate Fenton reactor (6), a precipitating pond (12), a baffle plate anaerobic pond (15) and a contact oxidization pond (18). Waste water to be treated flows through each reaction pond of the baffle plate Fenton reactor in sequence, reacts and enters the precipitating pond for precipitating, supernate in the precipitating pond enters each compartment of the baffle plate anaerobic pond in sequence for undergoing anaerobic digestion, water undergoing anaerobic treatment in the baffle plate anaerobic pond enters the contact oxidation pond for undergoing aerobic treatment, treated effluent enters an oblique-tube precipitating pond, and sludge undergoing secondary precipitation in the oblique-tube precipitating pond returns to the foremost end of the baffle plate anaerobic pond through a sludge reflux pump to realize reduction of the residual sludge, and treated water is stored in the reclaimed water pond. Compared with the prior art, the advanced oxidation-biological treatment device has the advantages of high agent use efficiency, low energy consumption, simple structure and remarkable increase of the sludge digesting efficiency and the gas yield.

The invention discloses a heat dissipation protection device for a storage battery of a new energy electric vehicle. The device comprises a pedestal, and a fixed plate is fixed at the top of the pedestal. A square hole is formed in the middle of the fixed plate, and a first cooling fan is mounted in the square hole; a plurality of block-shaped bulges are uniformly fixed on an arc-shaped damping plate; a plurality of grooves matched with the block-shaped protrusions are fixed to the two sides of the bottom of the mounting plate. A storage battery body is fixedly mounted on the mounting plate; heat conduction shells are tightly attached to the two sides of the storage battery body. A heat conduction rod is fixed to the center of the side, away from the storage battery body, of the heat conduction shell, and first connecting rods are symmetrically hinged to the upper end and the lower end of the heat conduction shell; vertical baffles are fixed to the periphery of the pedestal; the sliding grooves are matched with the sliding blocks, and the heat conduction rod penetrates through a fixing sleeve and extends to the outer sides of the vertical baffles to be connected with a heat dissipation assembly. The storage battery is protected through the arrangement of multiple heat dissipation structures and damping structures, guarantees the normal work of the storage battery, and can prolong the service life of the storage battery.

The invention relates to a novel partial deep layer pressurizing type vacuum preloading soft soil foundation processing method. According to the technical scheme, the method comprises a vertical drainage system, a transverse drainage system, vacuum extraction equipment, a pressurizing system, pressurizing equipment and a sealing system; a vertical drainage board adopts a novel anti-clogging drainage board, the vertical drainage board is divided into two parts to be driven, one part is driven into a soil body, and the other part is exposed out of the surface of the soil body. The technology enables a deep soil body to obtain higher air pressure, enables a larger pressure difference to be formed among the deep soil body, an upper soil body and the vertical drainage board, and enables the free water in the deep soil body to fast flow to the upper soil body and the drainage boards. In addition, the flow direction of airflow from a jet head obliquely upwards points to the drainage boards, therefore the seepage of the pore water in the deep soil body to the drainage boards can be accelerated, and the deep soil body can obtain better reinforcement effect.

The invention discloses a lithium battery active equalization control method, and relates to the technical field of lithium batteries. The control method comprises the following steps: (1) a system is initialized, and a set value is preset; (2) the voltage and current of batteries are detected; (3) a digital-to-analog conversion module in a main control unit reads data detected by a voltage detection module and a current detection module and converts the data; (4) the main control unit performs UKF operation on the data after conversion and estimates SOC, and calculates the average SOC value after estimation is completed; and (5) the main control unit calculates the difference between the SOC of each single battery and the average SOC value, and if the difference is greater than the set value, the main control unit controls the duty ratio and opens a lithium battery active equalization module to actively equalize the SOC of the single battery until the difference between the SOC of the single battery and the average SOC value is smaller than the set value. By adopting the method, the problem that SOC estimation through the existing lithium battery equalization scheme is inaccurate can be solved.

This invention relates to a method for removing Pb2+ and Zn2+ impurities from Ni electrolyte during Ni production. The method utilizes a weak-alkaline anion exchange resin with primary amine groups ((R3N) +OH-) to adsorb Pb2+ and Zn2+ in the Ni electrolyte. The method alternately performs adsorption, elution and regeneration. Adsorption is performed in a packed moving bed, while elution and regeneration are performed in a fluidized bed. The packed moving bed / fluidized bed apparatus has such advantages as simple structure, easy operation, and little resin abrasion. The method can accelerate the exchange between the resin and trace elements, and can easily elute Pb2+ and Zn2+ impurities in Ni electrolyte.

The invention discloses a folded paper-structured body surface sweat electrochemical sensor and a monitoring method, and relates to the electrochemical field. A paper substrate in the sensor is foldedto form 5 layers of paper structures; each layer of the paper structure is composed of a drainage layer and a hydrophilic layer; in the folding state, a first hydrophilic layer on a sweat collectinglayer, a second hydrophilic layer on a sweat diversion layer, a third hydrophilic layer on a sweat analyzing layer, a fourth hydrophilic layer on an electrode bearing layer, and a fifth hydrophilic layer on a sweat evaporating layer are contacted layer by layer to form a vertical channel, in which the sweat is diffused from the bottom of the sweat collecting layer to the top of the sweat evaporating layer; an electrochemical electrode system is set on one side of the electrode bearing layer folded towards the sweat analyzing layer; and an electrode detection end is contacted with the third hydrophilic layer on the sweat analyzing layer. The sensor and the monitoring method provided by the invention can separately collect, detect and evaporate the sweat, and reduce the mutual interference;the sweat is capable of flowing; the timeliness and the accuracy of the detection are improved; and at the same time, the discomfort of the user is reduced.

The invention discloses a composite wind energy collector. An electrode layer and a high-molecular polymer layer are arranged on both the upper surface and the lower surface of a T-shaped structural frame, the upper side and the lower side of the T-shaped structural frame are respectively provided with a piezoelectric cantilever beam, and the surface on the side, opposite to the T-shaped structural frame, of each piezoelectric cantilever beam is provided with a metal friction layer, so that two groups of composite wind energy collectors arranged in longitudinal symmetry are formed. The wind energy collectors combine piezoelectric wind energy collection modules and friction type wind energy collection modules. In work, wind blows to the wind energy collectors from the side surface, the wind power enables blades to swing and further drive the piezoelectric cantilever beams to swing up and down periodically, positive and negative charges in the piezoelectric cantilever beams are separated, and alternating currents are generated and output; and meanwhile, the metal friction layers and the high-molecular polymer layers are separated periodically, electron flowing is realized, and alternating current output is formed. According to the invention, the piezoelectric and friction wind energy collection modes are effectively combined, and the high power output of the wind energy collectors under a low wind speed is realized.

The invention provides a micro-fluidic chip for chemiluminescence detection, and a using method and a reagent cleaning method thereof, and belongs to the field of biochemical testing devices. The micro-fluidic chip comprises a substrate and a cover plate which form a sealing environment and are used for a micro-fluid to flow, the substrate is covered with the cover plate, and the substrate comprises: a sample adding hole and a diluted solution adding hole at the first layer; a sample quantification groove, a sample overflow groove, a diluted solution quantification groove and a dilution overflow groove at the second layer; an incubation groove at the third layer, solution storage grooves at the fourth layer, a detection groove at the fifth layer and a waste liquid groove at the sixth layer, wherein the sample quantification groove is communicated with the incubation groove, the diluted solution quantification groove is communicated with the incubation groove, the incubation groove is communicated with the detection groove, and the detection groove is communicated with the waste liquid groove through a hydrophobic flow channel. The separation, mixing and detection of a liquid is realized without repeatedly adding a sample, and the whole process is automatically completed, so the efficiency is increased, and the cost is realized; and the cleaning of a reaction reagent is realized, so the working efficiency is increased.

The invention provides a welding gun for coupling active tungsten inert gas (TIG) welding of a gas weld pool. A contact tube (4) is arranged in a contact tube accommodating cavity (a); a tungsten electrode chuck (3) is arranged in the contact tube (4); a boss (beta) is arranged outside the contact tube (4); the outer wall of a threaded sleeve (1) is connected with the inner wall of the contact tube (4) and pre-fastened with a tungsten electrode; the upper part of the threaded sleeve (1) is connected with an inner-layer gas inlet tube; a gasket (2) is sleeved on the lower part of the threaded sleeve (1); the tungsten electrode chuck (3) is arranged inside the contact tube (4); the tungsten electrode is fixed in the tungsten electrode chuck (3); an inner nozzle (7) is connected with the lower end of the contact tube (4); an outer nozzle (8) is connected with the outer part of a gun body (5) through a screw thread; an outer-layer gas inlet tube (11) is arranged on the side wall of the gun body (5) and introduced into a gas chamber through a channel formed on the side wall; and a first gas sieve (9) and a second gas sieve (10) are fixed between the boss (beta) and a boss (c) inside the gun body (5) respectively.

The invention discloses a dual-circulation purification window. A window mullion is provided with an indoor-end air channel and an outdoor-end air channel. An outdoor air inlet is formed in the portion, at the lower end of the outdoor-end air channel, of the window mullion, and an air inlet door driven by a motor A to be opened and closed is installed at the outdoor air inlet. An outdoor air outlet is formed in the portion, at the upper end of the outdoor-end air channel, of the window mullion, and an air outlet door driven by a motor B to be opened and closed is installed at the outdoor air outlet. One filter screen set is installed at the position, at the air inlet, inside the outdoor-end air channel, an air inlet unit is installed inside the indoor-end air channel, the other filter screen set is installed at the upper end of the air inlet unit, and an internal circulation air door is installed at the upper end of the other filter screen set. An indoor air inlet is formed in the portion, at the indoor end of the air inlet unit, of the window mullion, and an electrostatic adsorption brush is installed on the upper portion of the indoor air inlet. An air outlet unit is installed at the position, at the air outlet, inside the indoor-end air channel, and an indoor air outlet is formed in the portion, at the indoor end of the air outlet unit, of the window mullion. Indoor air of a building with the dual-circulation purification window can be purified even if the window is closed, and air pollution inside the building is reduced.

The invention relates to a micro valve capable of controlling liquid flowing. The micro valve comprises a valve body. The valve body comprises at least two flow guiding channels which are not in communication. The invention further relates to a micro flow control chip. The micro flow control chip comprises a substrate and a cover sheet, and the micro valve capable of controlling liquid flowing anda micro valve inserting hole used for receiving the micro valve are further included. The substrate is provided with a liquid storage groove and a micro channel, and the liquid storage groove and themicro channel are covered with the cover sheet and sealed. The micro channel is connected with the micro valve inserting hole. The micro flow control chip design and the micro flow control micro valve have the beneficial effects that the structure is simple, assembling is convenient, and repeated usage can be achieved; and the structure can be used for long-term effective sealing of a detection reagent in a testing sheet. Meanwhile, due to the flow guiding channels on the micro valve and the micro channel design on the substrate, the situation of flow guiding channel sharing can be avoided, and accordingly, the possibility of mutual pollution between fluid can be avoided.

The invention provides a heat radiation and heating device of a battery pack and a control method of the device. The device comprises a plurality of battery cells, a refrigerant, heat radiators, layered sealing plates, trough type pipelines, a sealing cover plate and a phase-change material, wherein the interior of the device is longitudinally divided into a plurality of layer spaces by the layered sealing plates; the refrigerant is distributed in the layer spaces close to positive terminals and negative terminals of the battery cells; the middle layer space is filled with the phase-change material; when the temperature of the battery cells rises, the vaporized refrigerant conducts heat to the fin radiators on the outer side for air cooling along heat pipes on an upper cover plate of a boxbody; the trough type pipelines distributed in a hollow square manner are arranged among the battery cells and connected at diagonal lines to form a plurality of passages; liquid is filled in the trough type pipelines for liquid circulation cooling or heating; the device is further provided with a temperature detector and a controller; a multistage heat radiation or heating system is activated according to the actual temperature in the box body of the battery pack; and a multi-way combined, uniform and efficient heat radiation and heating effect is achieved.

The invention provides a multi-functional shoe cabinet which comprises a cabinet body, a cabinet door and shoe cabinet boxes. The cabinet door is arranged on the cabinet body, and the shoe cabinet boxes are arranged in the cabinet body. Cavities are formed in the left side and right side of the cabinet body respectively. An air inlet and an air inlet fan are arranged at the bottom of the cavity in one side, an ozone generator is arranged above the air inlet fan, and an exhaust fan and an air outlet are formed in the bottom of the cavity in the other side. Vent holes are formed between the cavities in the left side and the right side of the cabinet body and the cabinet body. The left side and the right side of each shoe cabinet box are respectively provided with at least one vent hole, a control device is arranged on the cabinet body, and the control device controls the air inlet fan, the exhaust fan and the ozone generator. Ventilation, drying and sterilizing are effectively combined, and meanwhile all the shoe cabinet boxes can be conveniently and independently dried and sterilized through a control panel. The multi-functional shoe cabinet is suitable for dormitories with many persons, occasions in moist climate and other occasions.

The invention relates to the field of indoor air adjustment, in particular to a suspended ceiling fresh air ventilator energy-conservation control system and an energy-conservation control method thereof. The system and method are mainly achieved through an intelligent mode of an intelligent control module, in the intelligent mode state, an air quality sensor module and an air temperature module send detected air quality data and indoor and outdoor air temperature data to a microprocessor, the above detected air quality data and indoor and outdoor air temperature data are compared with a preset air quality setting value and indoor air temperature setting value through the microprocessor, and a fresh air motor, an exhaust motor and a switching valve are controlled to work. By means of the suspended ceiling fresh air ventilator energy-conservation control system and method, a suspended ceiling fresh air ventilator can monitor indoor and outdoor temperature, indoor air replacement, purification and flowing can be achieved, and energy conservation can be better achieved.

The invention discloses high-concentration malodorous gas catalytic oxidation deodorizing equipment and a deodorizing method thereof. A shell is internally divided into an upper-layer area, a middle-layer area and a lower-layer area; a gas inlet pipeline is used for collecting malodorous gas to be treated and pre-mixing the malodorous gas and air so as to achieve preset malodorous gas concentration; the mixed gas enters a heat exchange area on the lower part of an airtight shell and enters a multi-way heat exchange pipeline so as to be preheated; the preheated gas to be treated is heated through a heating area so as to meet the conditions of catalytic combustion reaction temperature; the heated gas to be treated enters a catalytic reaction area so as to be subjected to catalytic combustion reaction, and malodorous gas molecules in the gas to be treated are combusted; and the reacted purified gas enters the zigzag heat exchange area, and is heat-exchanged with the untreated gas to be treated located in the heat exchange pipeline so as to be discharged out of the airtight shell through a gas outlet pipeline. The high concentration malodorous gas catalytic oxidation deodorizing equipment provided by the invention is of an integral structure, can be used for realizing preheating, heating and catalytic combustion reaction of the gas to be treated, and is compact in structure; the heat energy of the gas after being catalytic combusted is effectively utilized, so that the energy consumption is reduced; and the cleanness treatment of the malodorous gas is realized through catalytic combustion.

Disclosed herein is a middle- or large-sized battery pack comprising a battery module including a plurality of unit modules horizontally stacked while each unit module is vertically erected on one side, the battery module being mounted in a sealed space of a housing member, wherein the housing member is provided at the upper or lower end of one side thereof with a coolant inlet port and at the lower or upper end of the opposite side thereof with a coolant outlet port, the battery module is mounted in the housing member such that the upper or lower end surface of the battery module is tilted toward the coolant inlet port by a predetermined angle, whereby a coolant introduced through the coolant inlet port in parallel with the battery module passes perpendicularly through the unit modules and is then discharged to the opposite side, and gaps (vertical flow channels) defined between the unit modules at the tilted upper or lower end surface of the battery module are arranged in parallel with the direction in which the coolant is introduced, whereby the cooling efficiency and the cooling uniformity of the battery pack are improved while the battery pack has a compact structure.

The invention discloses a mud-water separation apparatus, comprising a pressure-stabilizing and flow-stabilizing device, a dosing tank, a flocculating device, a homogenizing and leveling device, a concentration and dehydration device and a pressurized dehydration device which are all arranged on a frame. A mud outlet of the pressure-stabilizing and flow-stabilizing device is connected with the flocculating device; a mixed reagent from the dosing tank enters the flocculating device via a flocculating agent conveyer pipe; mud obtained after flocculation flows out from the flocculating device and enters the concentration and dehydration device for preliminary dehydration via the homogenizing and leveling device and then enters the pressurized dehydration device for extrusion and dehydration; and dehydrated dry mud is transported out. The mud-water separation method comprises the following steps: (1) subjecting mud and a flocculating agent to a mixed reaction; (2) placing mud on filter cloth and allowing the mud to undergo stationary dehydration relative to the filter cloth; and (3) placing mud between two layers of the filter cloth and carrying out peristaltic dehydration through extrusion by a pressure roller. Compared with the prior art, the mud-water separation apparatus and mud-water separation method provided by the invention have the advantages of great efficacy, low energy consumption, high stability, great treating capacity, capacity of realizing continuous treatment, etc.

The invention belongs to the technical field of logistics packaging boxes, and particularly relates to a logistics transportation packaging box. The logistics transportation packaging box comprises anouter box body and an inner box body located in the outer box body; a group of springs are arranged between the outer box body and the inner box body, and ice bags are arranged between every two adjacent springs; supporting modules are symmetrically arranged on the two sides of the inner box body; each supporting module comprises a gear, a rotating shaft, an elastic rope, a supporting rod, an arc-shaped spring and a sliding block; tooth parts are arranged on the two sides of the inner box body, and meshed gears are arranged on the outer sides of the tooth parts correspondingly; the bottoms ofthe supporting rods are hinged to the bottom walls inside the outer box body, one ends of the arc-shaped springs are fixedly connected with the inner box body, and the other end of the arc-shaped springs are fixedly connected with the outer box body; and sliding blocks are arranged on one sides of the bulge parts of the arc-shaped springs, arc-shaped plates are fixedly arranged on one sides of the sliding blocks, and the two sides of the sliding blocks are connected with the two ends of the rotating shafts through elastic ropes respectively. According to the logistics transportation packagingbox, the inner box body is supported through the supporting modules, so that damage to fruits caused by inclination of the inner box body is avoided, and then the safety of fruit transportation is improved.

The invention belongs to the technical field of agricultural planting and particularly relates to an agricultural intelligent soilless culture device. The agricultural intelligent soilless culture device comprises a culture unit, a liquid mixing unit and a controller, wherein the controller is used for controlling the culture device to work; the culture unit comprises a culture tank, a filtering plate, a clamping component, a sliding rod, a spring I, a mounting plate, a hinging rod and a swing plate; the culture tank is of a transparent tank body structure with an opening upper side surface soas to facilitate the observation and is used for culturing plants, and the filtering plate is arranged in the culture tank; the sliding rod is arranged and is used for driving the swing plate to swing leftwards and rightwards in a nutrient solution, so that the flow of the nutrient solution in the culture tank is realized, nutrients in the nutrient solution are uniformly distributed, the growth vigor of the plants is probably the same, and the quality of the plants are easily controlled; and by arranging the liquid mixing unit, the efficient preparation of the nutrition solution is realized,and the prepared nutrition solution can be relatively high in uniformity.

The invention relates to an electric motor with a housing, in which a stator arranged coaxially to a motor shaft and a rotor are arranged, and with a terminal box arranged on a circumferential wall of the housing, with electronic components being arranged in said terminal box, wherein, firstly, an aperture is provided between the terminal box and the housing, and secondly, an auxiliary fan impeller, which is connected fixedly to the motor shaft, is provided in the housing, such that, during operation of the electric motor, an air flow can flow from an interior of the housing into an interior of the terminal box and / or vice versa.

The invention discloses a controllable bench screw which comprises a main body shell. The controllable bench screw can achieve bidirectional clamping by means of a driving source, and meanwhile, the working state of a clamping part can be selected voluntarily in bidirectional clamping according to actual condition, so that the clamping diversity and adaptability are achieved. When voluntary selection is made to the controllable bench screw, a valve switch in a corresponding part can be opened automatically according to the weight of a part in a preventing part, so that the simplicity and practicality are improved. Moreover, the controllable bench screw provided with a movement control mechanism of a liquid telescopic part of a valve rod can communicate spaces of key parts under influence of a high pressure liquid, so that the liquid in corresponding part flows to clamp by corresponding part. In addition, the controllable bench screw provided with a liquid telescopic liquid driving mechanism of the clamping part can drive the liquid under the action of the gravity of the clamping part, so that the working state of the related part is adjusted.

The invention discloses an isolated direct current (DC) bidirectional converter which comprises a DSP (Digital Signal Processor), a first MOS (Metal-Oxide Semiconductor) transistor, a second MOS transistor, a third MOS transistor, a fourth MOS transistor, a fifth MOS transistor, a sixth MOS transistor, a transformer, an isolation driving unit, an isolation unit, an inductor and an electrolytic capacitor, wherein the transformer comprises a primary winding and two secondary windings; when energy flows to a low-voltage terminal from a high-voltage terminal, the DSP drives the first MOS transistor, the second MOS transistor, the third MOS transistor and the fourth MOS transistor to carry out full-bridge conversion by virtue of the isolation driving unit and drives the fifth MOS transistor and the sixth MOS transistor to carry out synchronous rectification; and when the energy flows to the high-voltage terminal from the low-voltage terminal, the DSP drives the fifth MOS transistor and the sixth MOS transistor to carry out push-pull conversion and drives the first MOS transistor, the second MOS transistor, the third MOS transistor and the fourth MOS transistor to carry out synchronous rectification. The isolated DC bidirectional converter is especially suitable for the bidirectional conversion from a low current at the high-voltage terminal to a high current at the low-voltage terminal.

The invention relates to a functional pressure hose for a water-carrying system, which has an inner hose made of plastic and an outer jacket made of a braided material extended in the whole pressure hose length. At least one pressure hose end is provided with a connector piece having a tubular connector, onto which the pressure hose end is pressed to the connector from exterior by means of a pressing sleeve. The hose demonstrates great flexibility while maintaining the required pressure strength, but at the same time guarantees great bending protection. The inner hose is formed by a corrugated hose which has parallel corrugations and is extended in the whole pressure hose length, the corrugated hose is directly surrounded by the outer jacket, and the tubular connector has circumferential ring beads that are adapted to the inner contour of the corrugated hose. At least some of the ring beads are provided with notches that run axially. The inner hose is surrounded by the pressing sleeve and is pressed into a groove of the connector formed by the ring beads by means of the pressing sleeve.

The invention discloses a seawater desalination device, which includes an evaporator (2). The top side wall of the evaporator (2) is provided with a wind inlet, an evaporator (2) side wall that is level with and opposite to the wind inlet is provided with a damp and hot steam outlet, the top of the evaporator (2) is provided with a cold seawater inlet, the bottom of the evaporator (2) is equipped with a hot seawater outlet, the evaporator (2) is internally provided with an inclined heating plate (3), the high end of the heating plate (3) is located right below the cold seawater inlet, the damp and hot steam outlet is connected to a condenser (4), the condenser (4) is internally provided with a snakelike cooling pipe (5), the inlet and outlet of the snakelike cooling pipe (5) are respectively connected to a cooling box (7), and a fresh water collecting box (6 ) is connected below the condenser (4). The seawater desalination device provided by the invention is used for concentrated seawater desalination to produce fresh water, and can guarantee residents' drinking water supply in coastal water-deficient areas.

The invention belongs to the field of LED street lamps and particularly relates to a cooling and dust removal LED street lamp based on a Bernoulli principle, and the street lamp comprises a lamp body;and the lamp body comprises a lamp holder and a lamp cover, an LED lamp tube is fixedly connected to the interior of the lamp holder, the middle of the bottom surface of the lamp holder is arranged in an upward hunch-up mode, a plurality of radiating holes are formed in the peripheral side wall of the lamp cover, a horizontally arranged cooling fan is arranged at the upper end of the LED lamp tube, the cooling fan is rotationally connected with the inner side wall of the lamp holder through a fixing ring, a rotating shaft of the cooling fan is movably connected with a threaded rod through a one-way bearing, the upper end of the threaded rod is rotationally connected with the center of the inner bottom surface of the lamp holder, a driving plate is arranged on the threaded rod in a sleeving mode, and a through hole matched with the threaded rod is formed in the driving plate. Wing plates are arranged, and the lower edges of the wing plates are arc-shaped lines arching downwards; when awind blows towards the wing plates, not only dust removal scraping plates are driven to slide and remove dust, but also the driving plate can be driven to move to enable the cooling fan to rotate forcooling, energy input is avoided, environmental protection and energy conservation are achieved, and the service life of the LED street lamp is further prolonged.