86results about How to "Prevent frost cracking" patented technology

The invention relates to the technical field of bathroom equipment, and particularly discloses a water-storage-free shower head faucet which comprises a shower body, a lower water outlet valve element, a top-spraying water outlet valve element and a shower head water outlet valve element are installed on the shower body and communicate with a lower water outlet head, a top-spraying water outlet head and a shower head water outlet head correspondingly, and the shower head water outlet valve element communicates with the top-spraying water outlet valve element and the shower head water outlet valve element. The lower water outlet valve element, the top spraying water outlet valve element and the shower head water outlet valve element are all communicated with the temperature adjusting water mixing valve element, a drainage channel communicated with the lower water outlet head is arranged in the shower body, and drainage openings are formed in the top spraying water outlet valve element and the shower head water outlet valve element. Residual water in the top spraying water outlet head and the shower head water outlet head can be sequentially drained through the water drainage opening, the water drainage channel and the lower water outlet head under the action of gravity and the constant suction principle, so that no residual water exists in a pipeline, the problem of residual water leakage is solved, a shower pipe and a shower head pipe are prevented from being frozen to crack in cold weather, and the phenomenon that when a user opens a shower faucet, the shower head is damaged is avoided. Cold water comes out for a long time.

The utility model discloses a cable sheath with a cable frost crack prevention function, which relates to the technical field of cable sheaths and comprises a tin foil tube. A plurality of rectangular openings are formed in the tin foil pipe, a sliding groove facilitating sliding connection of a sliding strip is formed in the tin foil pipe, and the sliding strip is welded to the inner wall of the rubber pipe; a heat tracing band is arranged between the rubber pipe and the tin foil pipe, and a corrugated pipe is arranged on the outer side of the rubber pipe. According to the utility model, the tin foil tube plays a role in guiding the cable, the heat tracing band is fixed on the heat tracing band buckle of the rubber tube, and the sliding strip is connected with the sliding chute of the tin foil tube in a sliding manner, so that the installation of the heat tracing band is facilitated, and the temperature generated by the heat tracing band acts on the cable through the rectangular opening of the tin foil tube, thereby preventing the outer protective layer of the cable from being frozen and cracked.

The utility model relates to the technical field of water heaters, and discloses a pipeline anti-freezing device for an outdoor water heater, which comprises a water heater pipeline, the surface of the water heater pipeline is sleeved with a foam sleeve, the surface of the foam sleeve is sleeved with a heat preservation component, the surface of the heat preservation component is sleeved with a heating pipe, and the surface of the heating pipe is sleeved with a water inlet pipe. A cavity is formed in the inner wall of the heating pipe, an electric heating wire is fixedly arranged in the cavity, the surface of the heating pipe is sleeved with an aluminum foil layer, the surface of the aluminum foil layer is sleeved with a corrugated extension pipe, the surface of the corrugated extension pipe is sleeved with a waterproof film, and the surface of the waterproof film is sleeved with an A fixing ring. According to the pipeline anti-freezing device for the outdoor water heater, through the arrangement of the electric heating wire, the fixing ring A and the fixing ring B are installed on the outer surface of the waterproof film and communicated with an external power source, the temperature sensor senses the external temperature, and when the temperature is low, the temperature controller controls the electric heating wire to heat, heat the pipeline and melt ice, so that the pipeline of the water heater is prevented from being frozen to crack.

The utility model discloses an air source heat pump system adopting a flash evaporator. The air source heat pump system comprises a compressor, a four-way reversing valve, a water side heat exchanger, the flash evaporator, an electronic expansion valve, an air side heat exchanger, a gas-liquid separator, a first electromagnetic valve, a second electromagnetic valve and a throttling mechanism. During defrosting, if the low pressure is too low, the low pressure can be increased by different amplitudes by controlling the first electromagnetic valve and the second electromagnetic valve, so that the low pressure of the system is controlled to be in a safe area all the time; the compressor is effectively prevented from being abraded in the defrosting process, or the heat exchanger is effectively prevented from frost cracking caused by local icing in the heat exchanger due to too low low pressure in the defrosting process of plate exchange, sleeve and shell and tube heat exchange.

The utility model discloses a device for preventing a reactant heating system from frost cracking, which comprises at least one pressure release valve arranged on a coil pipe, the pressure release valve is arranged in an area which is 1 / 3-1 / 2 of the height of the coil pipe, and the pressure release valve is used for enabling circulating water in the coil pipe to flow into a urea box to realize pressure release. According to the utility model, at least one pressure relief valve is arranged at the part, where the cooling is slowest, of the coil pipe and the runner communicated with the coil pipe, so that the pressure of circulating water, namely a heating medium, in the coil pipe and the runner can be released, and the heating system, including the coil pipe, the runner and other parts related to the coil pipe and the runner, is prevented from being frozen and cracked due to freezing and volume expansion of the circulating water.

The utility model relates to a water distribution core of a shower faucet, which comprises a main body, a water mixing chamber is arranged at one end of the main body, a cold water inlet and a hot water inlet are respectively communicated with the water mixing chamber through a cold water inlet channel and a hot water inlet channel, and the water mixing chamber is communicated with a water outlet through a water distribution channel. A first pressure relief channel is formed in the other end, opposite to the water mixing chamber, of the hot water inlet channel, a first pressure relief assembly is arranged in the first pressure relief channel and comprises a sealing plug, a spring and a plug, a mounting hole is formed in one end of the first pressure relief channel, and the plug is fixedly arranged in the mounting hole through a connecting piece; the sealing plug is arranged in the first pressure relief channel in a sliding mode, the spring is arranged between the sealing plug and the plug, one end of the spring is connected with the sealing plug, and the other end of the spring is connected with the plug. The technical scheme of the utility model has the technical effects of simple structure and effective prevention of frost crack of the main body.

The application relates to the technical field of heat pumps, in particular to a fluorine cooling and water cooling coupled heat dissipation driving plate system, which comprises a compressor, a first heat exchanger, a second heat exchanger, a first electronic expansion valve and a driving plate radiator, one end of the compressor is communicated with one end of the first heat exchanger, the other end of the compressor is communicated with one end of the second heat exchanger, the other end of the first heat exchanger is communicated with the other end of the second heat exchanger, the first electronic expansion valve is connected in series in a passage communicated between the first heat exchanger and the second heat exchanger, and a water inlet pipe of the first heat exchanger, the driving plate radiator and a water outlet pipe of the first heat exchanger are communicated in sequence. The fluorine cooling and water cooling coupled heat dissipation driving plate system can overcome the low heat exchange efficiency of the existing fluorine cooling heat pump unit, can improve the heat exchange efficiency under the condition that the ambient temperature is relatively low, can reduce the waste of resources, and can improve the energy-saving economy of the system.

The water path structure comprises a first filter element, a raw water path, a pure water path and a waste water path, one end of the raw water path is communicated with a raw water opening, the other end of the raw water path is communicated with a water inlet of the first filter element, a water inlet valve and a booster pump are arranged on the raw water path, and the booster pump is located between the water inlet valve and the first filter element; the pure water path is communicated with a pure water outlet of the first filter element; the wastewater path is communicated with a wastewater outlet of the first filter element, and an air inlet valve is arranged on the pure water path, so that external air can enter the pure water path; the water path structure further comprises an emptying water path, the water inlet end of the emptying water path is connected with the pure water path, the water outlet end of the emptying water path is connected with the raw water path, and an emptying valve is arranged on the emptying water path. The waterway structure and the water purifier can effectively prevent the problem of frost crack of the filter shell caused by freezing of water retained in the waterway and the filter element in a low-temperature environment, are reliable in operation, and do not influence the normal work of the whole machine.

The invention relates to the technical field of electric appliances, in particular to a defrosting control method and system of a heat pump unit and the heat pump unit, and aims to solve the problem that a plate heat exchanger is frost-cracked during defrosting of an existing heat pump unit. In order to achieve the purpose, the defrosting control method of the heat pump unit comprises the steps that according to the condenser temperature obtained by a defrosting sensor, whether the heat pump unit meets the first defrosting condition or not is judged; according to the waterway state information of the plate heat exchanger, whether the heat pump unit meets a second defrosting condition or not is judged; when the heat pump unit meets the first defrosting condition and the second defrosting condition at the same time, the heat pump unit is controlled to enter a first defrosting mode; and when the heat pump unit meets the first defrosting condition and does not meet the second defrosting condition, the heat pump unit is controlled to enter a second defrosting mode. The defrosting mode can be flexibly adjusted, so that the plate heat exchanger is prevented from being in a low-temperature environment, the plate heat exchanger is prevented from frost cracking, and the service life of the plate heat exchanger is prolonged.

The invention discloses a double-cold-source indoor unit and a refrigerating unit, the double-cold-source indoor unit comprises a cabinet, a fan, a water coil pipe and a fluorine coil pipe, the cabinet is provided with an air inlet and an air outlet, the fan, the water coil pipe and the fluorine coil pipe are installed in the cabinet, the water coil pipe comprises a plurality of first pipelines which are communicated with one another, the first pipelines are arranged in rows, and the fluorine coil pipe is arranged in the cabinet. The fluorine coil pipe comprises a plurality of second pipelines which are communicated with one another, the plurality of second pipelines are arranged in rows, a plurality of rows of second pipelines are formed, the rows of first pipelines and the rows of second pipelines are arranged in a staggered mode in the direction from the air inlet to the air outlet, and the first row of first pipelines are closer to the air inlet than the first row of second pipelines. The first pipelines and the second pipelines are arranged in the staggered mode, so that the heat exchange coefficient can be increased, meanwhile, hot air flow firstly flows through the first pipelines in the first column and then flows through the second pipelines in the first column, then the first pipelines can be prevented from being frozen and cracked, and normal operation of the refrigerating unit is guaranteed.

The utility model discloses a blast furnace high-pressure water and soft water mutual standby device which comprises an industrial water conveying pipeline, a soft water conveying pipeline, an interconnection pipeline, an emptying pipe, a one-way valve, an automatic alarm mechanism and a blast furnace body, and the industrial water conveying pipeline and the soft water conveying pipeline are connected with the blast furnace body. The industrial water conveying pipeline and the soft water conveying pipeline are communicated through an interconnection pipeline, a first stop valve is installed at the left end of the interconnection pipeline, a second stop valve is installed at the right end of the interconnection pipeline, an emptying pipe is installed at the lower end of the interconnection pipeline, and a third stop valve is installed on the emptying pipe. The industrial water conveying pipeline and the soft water conveying pipeline are each provided with an automatic alarm mechanism. The device is convenient for solving the sudden water break condition, is convenient for quickly recovering water supply, and ensures the normal production of the blast furnace; malignant accidents of burnthrough of a tuyere small sleeve and burnout of a cooling wall in the blast furnace are eradicated, and the serious consequence of hearth freezing caused by a large amount of water leaking into the furnace is avoided.

The utility model relates to PVC pipe technical field discloses a PVC pipe with reinforcing rib structure, including inner tube, the inside fixedly connected with six groups of fixed seat of inner tube, six groups of inner groove are seted up in the inside of six groups of fixed seat, six groups of inner groove are provided with six groups of stainless steel bar in the inside, the outside of inner tube is provided with outer tube, the outside fixedly connected with multiple groups of convex rib of outer tube, when using, through setting up stainless steel bar in the inside of inner groove, the tensile strength of stainless steel bar is far higher than PVC pipe, and stainless steel bar sets up along the pipe length direction, equivalent to forming longitudinal reinforcing framework in the inside of PVC pipe, when the pipe material is bent, stainless steel bar will directly bear the tensile stress, thereby prevent PVC pipe from breaking due to excessive stretching, through the outside fixedly connected with multiple groups of convex rib of outer tube, when the pipe material is subjected to lateral pressure, convex rib will contact external force first, and the pressure is transmitted to the whole outer tube wall, and then avoid local stress concentration and lead to pipe wall indentation or rupture.

The utility model discloses a coal bed gas gathering and transportation pipeline pressure regulation control device, which belongs to the technical field of coal bed gas gathering and transportation pipeline pressure regulation control, and comprises a box body, two pipelines are communicated in the box body, and flanges are respectively and fixedly connected outside the two pipelines. According to the pressure regulation control device for the coal bed gas gathering and transportation pipeline, by arranging a rotating shaft, a sealing plate, a gear, guide teeth and a sealing plate, the rotating shaft drives the sealing plate to rotate, meanwhile, the rotating shaft can drive the gear to rotate synchronously, and the guide teeth meshed with the gear can drive two pieces of adsorption cotton to adsorb dew on the surface of the box body; the device can adjust the pressure of gas in the device, the situation that the pipeline deforms or cracks when the pressure of the gas is large is prevented, meanwhile, dew on the surface of the box body can be adsorbed through adsorption cotton in cooperation with position rotation of a sealing plate, and the situation that the dew is frozen in winter, and consequently the box body is frozen and cracked is avoided.

The utility model relates to the field of composite steel pipes, and discloses a heat-insulation corrosion-resistant composite steel pipe which comprises a composite steel pipe body, a heat preservation assembly is arranged in the composite steel pipe body, a heat insulation assembly is fixedly connected to the surface of the composite steel pipe body, and a corrosion-resistant assembly is fixedly connected to the outer side of the heat insulation assembly. According to the utility model, through the arrangement of the heat preservation assembly, heat preservation can be carried out on the interior of the pipeline, through the rock wool pipe shell heat preservation layer, the effects of heat insulation, pipeline frost crack prevention and the like can be achieved, through the arrangement of the aluminum silicate pipe shell layer, high-temperature steam and chemical high-temperature steam can be resisted, and the excellent upper limit is improved; the composite steel pipe has excellent cold resistance, heat insulation can be conducted on the outer side of the pipeline through the heat insulation assembly, the phenomenon of frostbite of the pipeline can be avoided, the effect that the composite steel pipe has the excellent corrosion resistance is achieved, and meanwhile the composite steel pipe has the excellent heat insulation effect.

The utility model discloses an integrated metering instrument and a monitoring system, which have the advantages that an electricity metering component, a water metering component, a gas metering component and a heat metering component are integrated on a meter body of the integrated metering instrument, and an external power supply electrically connected with the electricity metering component supplies power, so that a battery does not need to be prepared; the power consumption, the water consumption, the gas consumption and the heat consumption of a user can be acquired only by adopting one set of power supply component, the signal processing component and the signal communication component, the production cost and the installation amount are reduced, the acquired signals are converted into a uniform format through the signal processing component and then are convenient for subsequent transmission and analysis, and the use efficiency of the circuit is improved; and when the air temperature is too low, a heat source passes through the heat consumption metering part, the temperature of the heat consumption metering part is high, the surrounding temperature can be increased, and especially for the water consumption metering part beside, water in the water consumption metering part is prevented from being frozen, and frost cracking of the water consumption metering part is effectively prevented.

This utility model relates to a leak-proof and freeze-proof structure for furnace top water supply, including a leak-proof and freeze-proof pipe. The leak-proof and freeze-proof pipe includes a connecting section and a drain section. Two connecting sections are directly connected and respectively disposed at both ends of the drain section. There is a pipe diameter between the two connecting sections that allows for straight-line connection, ensuring that the water flow has low resistance during use and can converge to the lowest point during draining. The two ends of the connecting section are respectively connected to the main water supply pipe through a first solenoid valve and a second solenoid valve. The drain section includes a first drain pipe that slopes downward from both ends toward the middle. The bottom surface of the first drain pipe is lower than the bottom surface of the connecting section. A second drain pipe is disposed at the lowest point of the drain section. The second drain pipe slopes downward and connects to the return water tank, and a third solenoid valve is disposed at its end. This application prevents leakage into the furnace and affects the furnace condition by setting up a leak-proof and freeze-proof pipe, while also preventing the water from freezing and causing the pipes and valves to crack.

This utility model relates to the field of vehicle-mounted home appliance technology and discloses a vehicle-mounted water dispenser, including a four-way connector. A water pipe is fixedly connected to one end of the inner wall of the water tank. A cold water pump is fixedly connected to the other end of the water pipe. The cold water pump is fixedly connected to a cold water valve via a water pipe. The cold water valve is fixedly connected to the four-way connector via a water pipe. Each of the four ends of the four-way connector is fixedly connected to a water pipe. The four-way connector is fixedly connected to one end of a three-way solenoid valve via a water pipe. One end of the three-way solenoid valve is fixedly connected to one end of a water pipe, and the other end of the three-way solenoid valve is fixedly connected to a water tank. In this utility model, when cold water is needed, the cold water pump draws water from the water tank, which flows sequentially through the cold water valve, water pipe to the four-way connector, then through the three-way solenoid valve, water pipe, and three-way adapter, before flowing out from the outlet pipe. This ensures the water dispenser can be used stably throughout the year and solves the problem of water pipes freezing and cracking due to water expansion during low winter temperatures.

The utility model relates to the technical field of solar water heaters, and discloses an anti-freezing solar water heater which comprises a main body mechanism, a connecting mechanism and an adjusting mechanism, the connecting mechanism is arranged in the main body mechanism, and the adjusting mechanism is arranged on the back face of the main body mechanism; the main body mechanism comprises two mounting plates, heat collecting pipes are slidably connected to the sides, close to each other, of the two mounting plates, and connecting plates are fixedly connected to the back faces of the mounting plates. According to the solar water heater, the heat collecting pipe is arranged, the control valve of the water inlet pipe is opened, the first electromagnetic valve is opened, water enters the water tank, after the water in the water tank reaches a certain water level, the water enters the cavity of the mounting plate through the circulating inlet pipe, the water in the cavity is heated through the heat collecting pipe, and after heating is completed, the second electromagnetic valve is opened; water flows into the water tank through the circulating outlet pipe, and water in the water tank enters the circulating inlet pipe again to be heated due to water entering, so that the heat collection performance of the solar water heater is enhanced.

The utility model discloses a four-way water flow sensor which comprises a pipe body, a first water outlet is formed in the first end of the pipe body, a temperature control valve is arranged at the second end of the pipe body, a water inlet is formed in the position, close to the temperature control valve, of one side of the pipe body, and a memory alloy one-way valve is axially installed in the water inlet. A water flow pulse signal part is installed in the pipe body between the first water outlet and the memory alloy one-way valve, a temperature probe is installed between the water flow pulse signal part and the first water outlet, water flow sensing can be conducted through the water flow pulse signal part, and meanwhile a temperature control valve is arranged to control the temperature of the water flow. Water in the water tank of the water heater can be discharged when the water temperature is low, the water tank of the water heater is prevented from being frozen and cracked, the memory alloy one-way valve can be automatically opened and closed according to the water temperature, the flow is controlled, and the flow of low-temperature water is reduced. The water flow sensor solves the problem that an existing water flow sensor is single in function.

The utility model relates to the technical field of air conditioner through-wall pipes, and discloses an air conditioner through-wall pipe with a water retaining grating, which comprises a through-wall pipe and a waterproof component, the waterproof component is arranged at the tail end of the through-wall pipe through an opened groove, a threaded pipe is arranged at the front end of the through-wall pipe, a connecting pipe is arranged on one side of the threaded pipe, and a connecting piece is arranged on the outer side of the threaded pipe through threads. A sealing adhesive tape is arranged between the connecting piece and the threaded pipe, and the outer side of the through-wall pipe is sleeved with a sealing assembly. The waterproof assembly and the sealing assembly are included, rainwater can be prevented from being sucked into the air conditioner fresh air system through the fresh air pipe in rainy days through a water retaining grating of the waterproof assembly, and workers can conveniently install the waterproof assembly at the tail end of the through-wall pipe through a pressing plate through a spring and a buckle; by pressing the tail end of the through-wall pipe, the buckle can open the waterproof assembly under the action of the spring and clean the waterproof assembly, the wall outlet hole can be sealed through the sealing assembly, and rainwater and winged insects are prevented from entering a room to affect the indoor environment.

The utility model provides a pipeline system which comprises a positioning bottom plate and a pipeline, a supporting sleeve frame is arranged on the top face of the positioning bottom plate in a bolted mode, a telescopic frame is arranged in the supporting sleeve frame in a sliding mode, a guide groove is formed in the top face of the telescopic frame, a limiting spring is arranged on the bottom face in the guide groove, the top end of the limiting spring is connected to a U-shaped support, and a limiting arc frame is connected to one end of the U-shaped support. A bearing arc frame is bolted to the side face of the telescopic frame, a pipeline is arranged between the bearing arc frame and the limiting arc frame, a plurality of sets of supporting sleeve frames are arranged on the surface of the positioning bottom plate to be matched with the telescopic frame to support the pipeline, the limiting arc frame is matched with the bearing arc frame to support the pipeline, and the height of the pipeline can be adjusted by adjusting the height of the telescopic frame through a through hole. According to the irrigation device, the irrigation height can be adjusted and used conveniently, adaptation of different irrigation heights is achieved, adaptability during irrigation is improved, meanwhile, the situation that treading is prone to occurring when a pipeline is directly placed on the ground is prevented, the adaptability of the irrigation height is high, and irrigation adjustment and use are facilitated.

The invention relates to the technical field of efficiency improving systems, in particular to an air cooling unit efficiency improving system which comprises a compressed air energy storage and release module, a heat exchange module, an air cooling adjusting module, an intelligent control module, a waste heat recovery and utilization module and an environment monitoring and self-adaptive adjusting module. The compressed air energy storage and release module comprises a compression unit, an energy storage unit, a heat exchange and heat storage unit and a power generation unit, and the heat exchange module comprises a heat exchange core unit, a heat source supply unit, a cooling medium supply unit, a monitoring unit and an auxiliary equipment unit. The air cooling adjusting module comprises an intelligent optimization control unit, an air cooling system unit, a power supply unit, an auxiliary heat dissipation unit and an alarm unit. According to the system, heat generated in the operation process of the air cooling unit can be efficiently recovered through the waste heat recovery and utilization module, the unit can automatically adjust operation parameters according to external environment parameters and operation data through the intelligent control and self-adaptive adjustment functions, and the optimal efficiency is kept.

The application provides a heat preservation rubber tube, which is a modified nitrile rubber heat preservation rubber tube; the outer side of the tube wall of the heat preservation rubber tube is provided with a heat preservation layer with air holes. In the vulcanization process, micro air holes are formed, a heat preservation layer with low heat transfer effect is formed on the outer layer of the rubber tube, the air movement in the bubbles is seriously hindered, and the 'convective heat conductor' effect formed by the micro holes on the rubber material prevents the air from flowing, thereby preventing the heat transfer and achieving good heat preservation effect and avoiding the rubber tube from being frozen and cracked. The application effectively avoids the limitation of rubber material selection, avoids the multi-stage processing of the rubber material, improves the production efficiency, achieves the heat preservation effect through the microstructure change after the vulcanization of the rubber material, and is more convenient to operate. The preparation process provided by the application is simple, the conditions are mild, and the controllability is strong, so that the application is more conducive to industrialization promotion and application.

The invention discloses an anti-freezing and anti-freezing heating and heat preservation system suitable for a high-cold and high-altitude tunnel and a construction method, relates to the field of anti-freezing and anti-freezing water prevention and drainage of the high-cold and high-altitude tunnel and tunnel heat preservation, and provides the anti-freezing and anti-freezing heating and heat preservation system suitable for the high-cold and high-altitude tunnel. The device is characterized by comprising a water absorption device, a methane combustion heating device, a heat preservation and waterproof device and a tunnel portal heating device which are arranged in a tunnel primary support, the water absorption device and the heat preservation and waterproof device are sequentially arranged on the surface of the tunnel primary support from inside to outside, and the methane combustion heating device is embedded in the heat preservation and waterproof device; and the tunnel portal heating device is arranged at the entrance of the tunnel. The tunnel is prevented from being frozen due to water seepage and water leakage through a methane combustion heating method, and heat generated by methane combustion is stored through the polyurethane heat preservation waterproof plate. And meanwhile, a single-wall perforated drainage concealed pipe and a central drainage ditch are arranged, so that normal operation of the tunnel waterproof and drainage system at extremely low temperature is ensured.

The invention discloses a fuel cell solid hydrogen storage thermal management circulating system and a control method, and belongs to the technical field of fuel cell thermal management and hydrogen storage. The system comprises a high-pressure hydrogen source, a solid-state hydrogen storage auxiliary heat source device, a fuel cell stack, a heat exchange mechanism, a pipeline switching unit and a controller, wherein the controller is in signal connection with each component and performs staged control; the control method depends on the system, in the starting stage, high-pressure hydrogen is controlled to enter the solid-state hydrogen storage auxiliary heat source device to absorb hydrogen and release heat to preheat an electric pile, the engine heating time is 1-10 min, and the temperature of the electric pile is increased to 310-340 k; in the normal operation stage, the stack waste heat is used for driving the solid hydrogen storage auxiliary heat source device to absorb heat and release hydrogen and supply hydrogen to the stack, and external heat supply is not needed; in the shutdown stage, high-pressure hydrogen is introduced again to enable the solid hydrogen storage auxiliary heat source device to absorb hydrogen and release heat, residual water vapor blowing and freezing prevention are carried out on the galvanic pile for 0.5-5 min, and the solid hydrogen storage auxiliary heat source device can be widely applied to fuel cell vehicles, engineering machinery, ships and fixed power stations.

The invention relates to the technical field of faucets, in particular to a modular faucet which comprises a faucet pipe body, an adjusting assembly is arranged on the surface of the faucet pipe body and comprises a connecting pipe connected to the water inlet end of the faucet pipe body, and a rectangular box is arranged above the connecting pipe; the rectangular box is communicated with the connecting pipe through a branch pipe, a rectangular cover is fixedly connected to the top of the rectangular box, a sealing piston is slidably connected to the interior of the rectangular cover in a sealed mode, and a longitudinal plate is fixedly connected to the top of the sealing piston; when a pipeline is locally frozen, water pressure in the connecting pipe changes, a sealing piston and a longitudinal plate are driven to move downwards, an optical shaft transversely moves along an inclined sliding groove, a first motor or a second motor of an auxiliary assembly is triggered to operate, a hollow plate is driven to move, and therefore a wrench is driven to rotate a valve element, the water outlet flow is automatically increased or decreased, and high-speed water flow can wash and melt ice blockage; normal circulation of the pipeline is recovered, and frost cracking of the pipeline is effectively prevented.

The utility model belongs to air conditioning ventilation technical field, concretely relates to a kind of energy-saving air conditioning ventilation device, including filter mechanism and split heat recovery mechanism, the side of filter mechanism away from split heat recovery mechanism is fixedly connected with pipeline one, the side of split heat recovery mechanism away from filter mechanism is fixedly connected with pipeline two, and one side of pipeline two fixed on the split heat recovery mechanism is equipped with circulating pipeline, the side of pipeline two away from circulating pipeline is equipped with shunt pipeline, and the connecting place of pipeline two inside close to pipeline two and shunt pipeline is equipped with heat exchange mechanism, the utility model can control the path of the new air inhaled and the operation of split heat recovery mechanism by the value of indoor and outdoor temperature difference according to different seasonal conditions by multiple temperature sensors detecting the air temperature of different regions.

The utility model discloses gas-electricity hybrid combustion equipment which comprises a control module, a gas heating module, an electric heating module and a water temperature detection module, wherein the gas heating module, the electric heating module and the water temperature detection module are electrically connected with the control module. The water temperature detection module is used for detecting the water inlet temperature T1 and sending the information of the water inlet temperature T1 to the control module; and the control module is used for determining to output an electric heating signal or a gas heating signal according to a difference value between a set temperature and the water inlet temperature T1 so as to control the corresponding electric heating module or gas heating module to heat.

The utility model relates to the technical field of heat exchange equipment, and discloses an air cooler, an air cooler system and a delayed coking system.The air cooler comprises a shell, a finned tube set, a heating tube, a draught fan and a shutter, an air inlet is formed in the bottom of the shell, an air outlet is formed in the top of the shell, the finned tube set is arranged in the shell and comprises a tube body and fins, the tube body is an oval tube, and the fins are arranged in the tube body. The fin is arranged on the outer wall of the tube body, the finned tube set is located between the air inlet and the air outlet, the heating tube is arranged in the shell, the heating tube is located below the finned tube set, the fan is arranged in the shell, the fan is located below the heating tube, and the shutters are arranged at the air inlet and the air outlet. When the coke tower is in an intermittent state, the shutters are closed, the heating pipes are started to generate heat to preserve heat of the finned tube set, and the finned tube set is prevented from being blocked due to oil gas medium solidification caused by low temperature in winter.