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72results about How to "Avoid ice blockage" patented technology
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Defrosting heater, evaporator assembly of refrigerating equipment and refrigerator with same
ActiveCN101957117AIncrease temperatureIncrease contact areaEvaporators/condensersCompression machines using turbinesEngineeringRefrigerated temperature
The invention discloses a defrosting heater. The defrosting heater is suitable for being arranged at an evaporator of refrigerating equipment and between water collecting disks under the evaporator. The defrosting heater comprises a first heating pipe, a second heating pipe and a connecting pipe, wherein the first heating pipe is suitable for being close to the bottom surface of the evaporator and parallel to the bottom of the evaporator; both ends of the second heating pipe are respectively inclined to the middle along the direction from the bottom surface of the evaporator to drainage openings of the water collecting disks; and the connecting pipe is in a U shape and is used for connecting the first ends of the first heating pipe and the second heating pipe. The defrosting heater of the embodiment of the invention prevents the secondary freezing of defrosted residual ice at the water collecting disks and the drainage openings so as to solve the problem of drainage opening blockage or defrosting water overflow. The invention also discloses an evaporator assembly of refrigerating equipment with the defrosting heater and a refrigerator with same.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +1
Method and structure for automatically detecting water intaking state of ice-making device of refrigerator
InactiveCN104279806ATurn on in timeAvoid ice blockageDomestic cooling apparatusLighting and heating apparatusEngineeringRefrigerated temperature
The invention discloses a method and a structure for automatically detecting the water intaking state of an ice-making device of a refrigerator. The method comprises the operating steps of (a) detecting the work current value of a water pump of the ice-making device; (b) judging the ice-making device is in a normal water sufficiency state, a state in which a water tank is subjected to water shortage or a state in which a water inlet pipe is subjected to ice blockage according to the work current value of the water pump, detected in the step (a); and (c) feeding the judgment results of the water shortage state and the ice blockage state obtained in the step (b) back to a consumer. After the method and the structure are adopted, the water intaking state of the ice-making device of the refrigerator can be automatically detected, and the detection results can be fed back to the consumer in time, so that the ice-making device of the refrigerator can be very conveniently used by the consumer.
Owner:SUZHOU SAMSUNG ELECTRONICS CO LTD +1
Frostless refrigerator capable of defrosting through coupling of ultrasonic waves and super-hydrophobic materials, and control method of frostless refrigerator
InactiveCN105716352AStable operating environmentExtended service lifeLighting and heating apparatusDomestic refrigeratorsEngineeringReturn channel
The invention discloses a frostless refrigerator capable of defrosting through coupling of ultrasonic waves and super-hydrophobic materials, and a control method of the frostless refrigerator. The frostless refrigerator comprises a master controller, an evaporation chamber, a refrigerating chamber, a cold storage chamber, a compressor, a drainage device, an environmental temperature sensor and a magnetic sensitive control air valve, wherein the master controller is separately connected with a ultrasonic wave oscillation system, the compressor, an electric heater, the magnetic sensitive control air valve, a fan, the environmental temperature sensor, a refrigerating chamber temperature sensor, an evaporator temperature sensor and a cold storage chamber temperature sensor, and the ultrasonic wave oscillation system and the electric heater are defrosting devices; the surface of an evaporator, the surface of a refrigerating chamber air channel, the surface of a refrigerating chamber air-return vent, the surface of a cold storage chamber air channel, and the surface of a cold storage chamber air-return channel are made from super-hydrophobic materials. According to the frostless refrigerator and the control method thereof disclosed by the invention, frosting surfaces are treated by using the super-hydrophobic materials, ultrasonic waves and electric heating are coupled, on-line defrosting is performed in a manner that the frostless refrigerator does not stop, the stable running environment of the refrigerator is guaranteed, and the service life of the refrigerator is prolonged.
Owner:NANJING NORMAL UNIVERSITY
Defrosting control system for air-cooled refrigerator and control method for same
InactiveCN102506558AImprove defrosting efficiencyReduce energy consumptionLighting and heating apparatusDefrostingMechanical engineeringControl system
The invention relates to a defrosting control system for an air-cooled refrigerator and a control method for the same. The defrosting control system comprises a defrosting heater (1), finned evaporators (2), a defrosting tray and a defrosting tray heater (3), wherein the defrosting heater (1) is embedded in the finned evaporators (2); the defrosting tray heater (3) is fixed on the surface of the defrosting tray; and temperature sensors are arranged on the finned evaporators (2). When a defrosting requirement of the refrigerator is met, the defrosting heater (1) is turned on, and the defrosting tray heater (3) is turned on after time delay n1; and when the temperature sensor on the finned evaporator (2) reaches a set temperature value, the defrosting heater (1) is turned off, and the defrosting tray heater (3) is turned off after time delay n2. The defrosting tray is defrosted through delayed turn-on / off of the defrosting tray heater (3), so that the defrosting efficiency is improved, the energy consumption is reduced, and the problem of an ice barrier of a drainage pipe is radically solved.
Owner:HISENSE RONSHEN GUANGDONG REFRIGERATOR
Vortex direct contact ice device
InactiveCN101000190AReduce dosagePrevent bringing inLighting and heating apparatusIce productionPlate heat exchangerIce storage
The invention provides a vortex direct contact ice maker, characterized in that: ice making container is connected smoothly of the upper half part of cylindrical flow stabilizing cavity and the lower half part of conic separating cavity, the center of top end cover of the ice making container is equipped with funnel ice slurry outlet and the bottom equipped with cryogen outlet, the top of the flow stabilizing cavity is respectively equipped with pairs of uniformly separated and symmetrically distributed secondary refrigerant and water solution spray nozzles in the tangent direction of the cylinder wall; when making ice slurry, the secondary refrigerant and water solution injected into the flow stabilizing cavity form vortex and fully mix and exchange heat with each other to make a part of water solution turn into ice slurry, and they are respectively separated and discharged under the action of centrifugal force of the vortex and gravity. And the ice maker solves the problem of separation of ice slurry from water solution and secondary refrigerant, avoiding ice jam happening caused by adhesion of ice slurry particles and the problems of large secondary refrigerant dosage caused by carrying secondary refrigerant and ice slurry into ice storage cylinder and of carrying water solution into plate heat exchanger, further improving the efficiency and running stability.
Owner:SHANGHAI MARITIME UNIVERSITY
Method for preparing fluid ice by double layer evaporation type supercooled water and the preparing device
InactiveCN101216232AImprove stabilityImprove reliabilityLighting and heating apparatusIce productionWater vaporAir treatment
The invention relates to a method for producing fluid ice using supercooled water and a device thereof, specifically to a double-layer evaporative method for producing fluid ice using supercooled water and a device thereof. The invention comprises the following steps of: primarily cooling the water for producing ice via a refrigerating cycle unit, sprinkling the cooled water for producing ice on an evaporation supercooled layer, and introducing the treated air for producing ice into the evaporation supercooled layer, wherein the water vapor partial pressure is lower than water three-phase saturated vapor pressure 611.7Pa; introducing the treated water into a supercooling relieving and ice producing layer and sprinkling the treated water on a supercooling relieving device for generate a mixture of ice crystal and water; introducing the ice for producing ice from the evaporation supercooled layer to the supercooling relieving and ice producing layer to keep relatively low surrounding temperature of the second layer, and returning the ice for producing ice to an air treatment unit; separating the mixture of ice crystal and water via a ice and water separator to obtain fluid ice; and returning the separated water to a water tank unit. The invention has the advantages of low energy loss, high ice producing efficiency and no ice blockage.
Owner:JIANGSU FOCUS NEW ENERGY TECH +1
Pipeline cleaning system for grouting equipment of shield machine
The invention provides a pipeline cleaning system for grouting equipment of a shield machine. The pipeline cleaning system comprises a control system and an operation system, wherein the operation system is composed of one-way valves, electromagnetic valves, pressure reducing valves, an air pipe, an air compressor and the like. According to the pipeline cleaning system, after the pressure of compressed air is manually regulated through the pressure reducing valves, the compressed air passes through the tympanic membrane electromagnetic valves, enters the one-way valves and is blown into a stirring tank so as to prevent a tank opening from being blocked, or the pipeline is subjected to pulse washing by means of alternate working of water and air, and therefore the phenomenon that the construction progress is delayed due to blockage of the tank opening in the construction process can be avoided, and the continuity and the efficiency of construction can be guaranteed.
Owner:BEIJING NO 4 MUNICIPAL CONSTR ENG
Refrigerator
PendingCN107192196AReduce the impactIncrease distanceLighting and heating apparatusDomestic refrigeratorsIceboxCool storage
The invention provides a refrigerator. The refrigerator comprises a box body and a water draining tube, wherein the box body comprises a housing as well as a refrigerating inner container and a freezing inner container which are arranged up and down inside the housing; the refrigerating inner container defines the refrigerating chamber; the freezing inner container defines the freezing chamber; the upper end of the water draining tube communicates with the refrigerating inner container for draining condensed water inside the refrigerating chamber; and the water draining tube firstly extends to the transverse side wall of the housing from the bottom of the refrigerating inner container and then downwards vertically extends across the bottom end of the freezing inner container. The water draining tube of the refrigerator provided by the invention is not liable to have ice blockage.
Owner:HAIER SMART HOME CO LTD
Refrigerator and air duct plate thereof
ActiveCN104296458AImprove the noise reduction coefficientIncreased acoustic impedanceLighting and heating apparatusSound producing devicesResonanceRefrigerated temperature
The invention discloses a refrigerator and an air duct plate of the refrigerator. The refrigerator comprises a refrigerator body which is internally provided with refrigerating chambers, door bodies installed on the refrigerator body and used for opening or closing the refrigerating chambers and an air duct arranged in the refrigerator body, wherein the air duct comprises the air duct plate, and silencing blind holes spaced to one another are formed in the inner wall face of the air duct plate. According to the refrigerator, due to the fact that the silencing blind holes are formed in the inner wall face of the air duct plate, noise can form resonance at peak frequency bands, so that the silencing coefficient and the sound resistance of the air duct plate are improved, and the sound absorption bandwidth is enlarged. In addition, the silencing blind holes formed in the inner wall face of the air duct plate are used for replacing silencing cotton to reduce fluid noise generated when air flow flows through the air duct plate, secondary noise brought by the silencing cotton is lowered, the problem that the air duct is blocked by ice due to water absorption of sound absorption cotton is effectively solved, the production cost is reduced, and the long-term operation reliability of the product is improved.
Owner:HEFEI HUALING CO LTD
Energy tower heat pump unit secondary refrigerant freezing point monitoring control method and device thereof
ActiveCN101561207AImprove stabilityImprove reliabilityProgramme controlComputer controlClosed loopEngineering
The invention discloses an energy tower heat pump unit secondary refrigerant freezing point monitoring control method and a device thereof, and is characterized in that the monitoring control method includes that a detection device of secondary refrigerant solution concentration and pH value sends out all kinds of detection signals to a heat pump unit controller, and the controller sends out signals of secondary refrigerant solvent adding, normal operation, stopping, and the like; the device comprises a compressor (1), a condenser (2), an electronic expansion valve (4) and an energy tower heat pump unit evaporator (3), which are connected to form a closed loop, and is characterized in that the detection device (5) of secondary refrigerant solution concentration and pH value is connected at both sides of the water inlet and outlet of the energy tower heat pump unit evaporator (3); the detection device (5) comprises a closed detection barrel (10), a densimeter (11), a pH value meter (7), a temperature sensor (8) and a valve (9), and the densimeter (11), the pH value meter (7) and the temperature sensor (8) are all electrically connected with a controller; the solution can be automatically adjusted when the indexes such as environmental condition or energy tower solution concentration change, thereby avoiding faults and decreasing operating cost.
Owner:烟台蓝德空调工业有限责任公司
Refrigerator and control method thereof
InactiveCN105135788AAvoid Insufficient Fluid SituationsMeet the needs of useLighting and heating apparatusDomestic refrigeratorsLiquid storage tankProcess engineering
The invention provides a refrigerator and a control method thereof. The refrigerator comprises a compressor, a condenser, a first liquid storage tank, a shunting device, a first throttling device, a cold storage evaporator, a second throttling device, a refrigeration evaporator and a second liquid storage tank, wherein an inlet of the condenser is communicated with an exhaust port of the compressor, and an inlet of the first liquid storage tank is communicated with an outlet of the condenser; an inlet of the shunting device is communicated with an outlet of the first liquid storage tank, an outlet of the shunting device is communicated with the first throttling device and the second throttling device respectively, the first throttling device is communicated with the cold storage evaporator, the second throttling device is communicated with the refrigeration evaporator, and the second liquid storage tank is communicated with the refrigeration evaporator and the cold storage evaporator respectively. According to the refrigerator, the first liquid storage tank is added between the condenser and the shunting device, so that sufficient refrigerants are provided when cold storage and refrigeration are operated simultaneously, the condition of insufficient liquid supply during simultaneous operation of cold storage and refrigeration is avoided, the cold storage and refrigeration effects of a product are improved, and the use demand of a client is met.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +1
Natural gas compressor with dehumidification function
InactiveCN104747406AReduce labor costsHigh precisionPositive displacement pump componentsPumpsAutomatic controlProduct gas
The invention provides a natural gas compressor with a dehumidification function. The natural gas compressor comprises a body, a first three-way valve, a second three-way valve, a pressure sensor, a first humidity sensor, a second humidity sensor and a control module. A compression cavity, a backflow channel, an exhaust cavity, a gas storage cavity, a drying cavity, a gas suction channel and an exhaust channel are formed in the body. A moisture adsorption layer is arranged in the drying cavity and located between an inlet and an outlet of the drying cavity, and a heating drying device is arranged on the moisture adsorption layer. The drying cavity and the moisture adsorption layer can dehumidify compressed gas of which the humidity exceeds the standard, so that the dryness of the gas is guaranteed; the heating drying device can evaporate moisture in the moisture adsorption layer to dry the moisture adsorption layer, so that the moisture adsorption layer is recycled. The moisture and air pressure are automatically detected, and dehumidification and compression are automatically controlled to be performed according to the detection result, so that the labor cost is low, and the accuracy is high.
Owner:安徽寅时压缩机制造有限公司
Automobile air conditioner flow and pressure measurement and control system based on WIFI technology
InactiveCN107102662AIs there any blockageConvenient querySimultaneous control of multiple variablesAudio power amplifierElectromagnetic clutch
The objective of the invention is to provide an automobile air conditioner flow and pressure measurement and control system based on a WIFI technology. The system comprises a control module, a sensing module, a detection module, a storage module and a WIFI module; the sensing module comprises a first high-pressure flow sensor, a second high-pressure flow sensor, a high-pressure pressure sensor, a high-pressure temperature sensor, a first low-pressure flow sensor, a second low-pressure flow sensor, a low-pressure pressure sensor and a low-pressure temperature sensor. The control module comprises an amplifier and a bidirectional association control circuit, the control module is in bidirectional connection with the WIFI module, the detection module is configured to detect the work conditions of an air conditioner switch and an electromagnetic clutch; and the storage module is configured to store system data. The automobile air conditioner flow and pressure measurement and control system based on the WIFI technology can perform measurement and control of the flow and the pressure of an air conditioner when the air conditioner is running no matter what an automobile remains stationary or running, perform prompting when the automobile air conditioner pipeline is obstructed or the pressure is abnormal, is convenient to use and can accurately calculate the amount of added refrigerant or refrigerant oil.
Owner:FOSHAN POLYTECHNIC
Method for preventing ice-slurry preparing device adopting super-cooling method from generating ice blockage and device thereof
InactiveCN105135776AAchieve enhanced heat transferAvoid ice blockageLighting and heating apparatusIce productionSuper coolingIce storage
The invention discloses a method for preventing an ice-slurry preparing device adopting a super-cooling method from generating ice blockage and a device thereof. An ice-making fluid firstly flows through a fluid pulsation generating device before entering a super cooler, so that flow and pressure of the ice-making fluid generate pulsation; then, the fluid is cooled and super-cooled in the super cooler, and velocity gradient near the wall surface of the super cooler is increased by virtue of the fluid pulsation, so that fluid shearing force is increased, and ice crystal particles are prevented from being adhered on the surface of the super cooler, thereby preventing ice blockage. The device comprises a pulsation generating device, a flow meter, an ice slurry generating device, an ice storage slot, an ice crystal filter device and a related valve. According to the device, the pulsation generating device is mounted in front of the super cooler, so that on one hand, pulsation of the fluid in the super cooler is reinforced, a heat exchange coefficient is increased, formation of an ice layer is avoided, heat exchange thermal resistance is reduced and heat exchange efficiency of the super cooler is integrally improved; and on the other hand, the problem that an ice slurry generating process adopting the super-cooling method is liable to generate ice blockage is solved.
Owner:CENT SOUTH UNIV
Vortex tube induced shock wave hydrate inhibition device
InactiveCN112555237ASafe and efficient productionSimple compositionFluid dynamicsShock waveEngineering
The invention relates to a vortex tube induced shock wave hydrate inhibition device. The vortex tube induced shock wave hydrate inhibition device mainly comprises a gas inlet pipe, a vortex tube, a return pipe, a hot end outlet pipe, a cold end outlet pipe, a heat pipe type heat exchanger, an air blower and a mixer; high-pressure natural gas extracted from a gas well enters the vortex tube and generates strong rotational flow motion in a vortex chamber, so that energy separation is triggered, and cold and hot double fluids are formed; hot fluid of a hot end pipe is continuously accelerated tobecome supersonic fluid by passing a contracting gradually-widened pipe section, then an expansion pipe section generates shock waves, and the temperature and the pressure are increased; and part of the high-temperature and high-pressure fluid flows back to a cold end pipe and exchanges heat with cold fluid, so that ice blockage of the cold end is prevented. The device combines a shock wave heating principle and a vortex tube energy separation principle, the high-pressure natural gas is taken as a working power source, and no additional heating device is arranged, so that economization and environmental protection, and safety and reliability are achieved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Ice source heat pump system controllable in ice content
InactiveCN110345665AIncrease concentrationLarge latent heat of phase changeHeat pumpsFood processingWater source heat pumpIce water
The invention belongs to the technical field of new energy resources, and particularly relates to an ice source heat pump system controllable in ice content. The ice source heat pump system comprisesan ice-water mixture preparation circulating module which is composed of a supercooled water heat exchanger, an ultrasonic supercooling relieving device and an ice-water mixture separation device. When the system operates, the ice content of a generated ice-water mixture is controlled by controlling working parameters of the ultrasonic supercooling relieving device, and controllable icing is achieved. According to the ice source heat pump system, limitation of a traditional water source heat pump to the fed water temperature is broken, the problem that in a traditional unit, an evaporator is iced and cannot work due to the fed water temperature is too low is solved, in addition, the ice content of the system can be controlled, it can be ensured that the system utilizes latent heat of phasechange to the greatest extent, and the situation that a pipeline is frozen and blocked due to the fact that the ice content is too high in the ice slurry conveying process is prevented.
Owner:HUBEI FENGSHEN CLEAN AIR CONDITIONING EQUIP ENG +1
Air separation system and method utilizing pressure energy of high-pressure natural gas pipeline network
ActiveCN106369935AReduce energy consumptionImprove mechanical powerSolidificationLiquefactionHigh energyAir filter
The invention discloses an air separation system and a method utilizing pressure energy of a high-pressure natural gas pipeline network. The air separation system comprises a natural gas pressure energy recovery system, an air separation system and a refrigerant circulation loop, wherein the natural gas pressure energy recovery system comprises a natural gas purification device, a high-pressure natural gas expansion machine, a high-pressure refrigerant compressor, a heat exchanger A, a refrigerant expansion machine, a medium-pressure refrigerant compressor, a medium-pressure natural gas expansion machine and a heat exchanger B, and the air separation system comprises a blower, an air filter, an air compressor, an air compressor aftercooler, an air precooler, a molecular sieve adsorption device, an electric heater, a main heat exchanger, an air expansion machine, a rectifying tower, an oxygen storage device and a nitrogen storage device. According to the air separation system, high pressure energy of high-pressure natural gas is converted into cold energy for air separation, the expansion machines and the heat exchangers are used as intermediate equipment for energy conversion, the pressure is reduced, and additionally, the pressure energy is fully refrigerated and used, so that the problems of high energy consumption and low pressure energy utilization of an air separation technique are solved.
Owner:SOUTHWEST PETROLEUM UNIV
Refrigerating device and method of mining escape capsule
InactiveCN102889095AHigh trafficImprove cooling capacity utilizationTunnel/mines ventillationSafety equipmentsCarbon dioxide cylinderEngineering
The invention discloses a refrigerating device and a method of a mining escape capsule, belonging to the field of safe rescue and environment control in a sealing space. The refrigerating device comprises a carbon dioxide steel bottle, a pipeline, a primary decompression throttling valve, a primary bypass valve, a primary thermometer, a primary capillary tube evaporator, a secondary decompression throttling valve, a secondary bypass valve, a secondary thermometer, a secondary capillary tube evaporator, an exhaust adjusting valve and a pneumatic air blower. According to the refrigerating method provided by the invention, conversion elements are connected and arranged on the primary capillary tube evaporator and the secondary capillary tube evaporator in series and in parallel, so that the use ratio of the refrigeration capacity of refrigerating fluid can be effectively increased, and the loss of the refrigeration capacity can be reduced; and furthermore, the primary thermometer and the secondary thermometer are arranged, so that the controllability of the device operation can be improved. The refrigerating device and the method provided by the invention have the advantages of safe and reliable properties, flexible and convenient adjustment, energy conversation, environmental protection, and high economical benefits and the like.
Owner:中船(天津)环境工程技术有限公司
Liquefied gas storage tank liquid level meter pipeline ice blockage prevention device
InactiveCN108980609ASolve the problem of ice blockageImprove the safety of useVessel mounting detailsContainer filling methodsHeating timeLiquid level measurement
The invention discloses a liquefied gas storage tank liquid level meter pipeline ice blockage prevention device. The liquefied gas storage tank liquid level meter pipeline ice blockage prevention device comprises a heating device and a control system; the heating device is arranged on a liquid phase pipeline of a liquid level meter and used for partially heating the liquid phase pipeline, and theheating device is arranged in the position of a straight pipeline section, close to an inner tank of a low-temperature liquefied gas storage tank, of the liquid phase pipeline of the liquid level meter; and the control system is used for controlling the heating time and the heating temperature. According to the liquefied gas storage tank liquid level meter pipeline ice blockage prevention device,the ice blockage problem of the pipeline of the liquid level meter can be effectively solved, the using safety of the low-temperature liquefied gas storage tank is improved, and the liquefied gas storage tank liquid level meter pipeline ice blockage prevention device is simple in structure, low in cost and capable of being widely applied to the field of liquid level measurement of low-temperatureliquefied gas storage tanks.
Owner:SHANGHAI MICROPOWERS
System and method for generating vibrations in at least one component of a fuel cell system, and fuel cell system
PendingCN111668516AGuaranteed uptimeAvoid ice blockageReactant parameters controlPropulsion by batteries/cellsFuel cellsEngineering
A system and method for generating vibrations in a fuel cell system include a vibration device which can be arranged on the fuel cell system or is formed by at least one component of the fuel cell system, for generating excitation vibrations which can be transmitted to the component. An electronic actuating system includes a controller and memory for actuating the vibration device, which may include a coolant pump or a compressor, at a natural frequency of a fuel system component for de-icing. At temperatures below 0 DEG C., the electronic actuating system is adapted to actuate the vibration device during a switch-on process and / or a switch-off process of the fuel cell system taking into consideration at least one natural frequency of the component. Embodiments including actuating a compressor, cooling pump, and / or valve to transmit vibrations to a component to be de-iced at a natural frequency of the component.
Owner:FORD GLOBAL TECH LLC
Supercooled liquid methane self-circulation online preparation system and method based on pressurization temperature control
ActiveCN113865262AFast online preparationWith automatic adjustment functionSolidificationLiquefactionTemperature controlEngineering
The invention provides a supercooled liquid methane self-circulation online preparation system and method based on pressurization temperature control, and mainly solves the problems that the preparation efficiency is low, stable output cannot be realized and the performance of an engine is influenced during existing liquid methane supercooling. The system comprises a liquid nitrogen supply unit and a methane supercooling unit, the liquid nitrogen supply unit comprises a liquid nitrogen supply container, a liquid nitrogen filling pipeline, a liquid nitrogen conveying pipeline and a liquid nitrogen supply deflation pipeline; and the methane supercooling unit comprises a heat exchange container, a heat exchange pressurization pipeline, a heat exchange deflation pipeline, a heat exchanger, a heat exchange heating pipeline, a heat exchange heating exhaust pipeline, a methane filling pipeline and a supercooled methane output pipeline. By means of the supercooled liquid methane self-circulation online preparation system, the liquid nitrogen supply unit mainly provides cooling liquid nitrogen, and the methane supercooling unit is mainly used for cooling liquid methane.
Owner:XIAN AEROSPACE PROPULSION TESTING TECHN INST
Vortex heater
PendingCN107763866AReduce consumptionEasy to manufactureLighting and heating apparatusFluid frictions for heatingEngineeringHigh pressure
The invention discloses a vortex heater, and relates to the technical field of natural gas pipeline networks. The vortex heater comprises a heater body. A gas inlet cavity, a heating cavity and a heatexchange cavity are formed in the heater body. The gas inlet cavity communicates with the heating cavity. Gas inlets are formed in the gas inlet cavity and provided with nozzles. The nozzles inject gas entering from the gas inlets into the gas inlet cavity in the tangential direction of the inner wall of the gas inlet cavity. The heat exchange cavity is formed between an outer shell of the heaterbody and the heating cavity. A heat exchange gas inlet and a heat exchange gas outlet are formed in the outer shell of the heater body. Heat exchange pieces are arranged on the outer wall of the heating cavity. According to the vortex heater, heat generated by high-pressure gas of an inlet of a gas pipeline network is utilized for heating; mounting is simple; energy consumption is small; an outerheating source is not needed; and the heater is simple in manufacturing and low in manufacturing cost.
Owner:LESHAN CHUANTIAN GAS EQUIP
Mining escape capsule refrigerating system and method
InactiveCN102877879AHigh trafficImprove cooling capacity utilizationTunnel/mines ventillationMachines using refrigerant evaporationCarbon dioxide cylinderCapacity loss
The invention discloses a mining escape capsule refrigerating system and method, and belongs to the field of confined space safety rescue and environment control. The system comprises a carbon dioxide steel bottle, a pipeline, a primary bypass valve, a primary pressure reduction and throttling valve, a primary temperature meter, a primary capillary evaporator, a secondary communicated valve, a secondary pressure reduction and throttling valve, a secondary temperature meter, a secondary capillary evaporator, a gas exhaust regulating valve and a pneumatic fan. According to the invention, the primary capillary evaporator and the secondary capillary evaporator are adopted to be connected in series and in parallel to arrange and exchange elements, the refrigeration capacity utilization ratio of a refrigerant can be improved effectively, and the refrigeration capacity loss is reduced; and additionally, through the arrangement of the primary temperature meter and the secondary temperature meter, the controllability of system running and operation is improved; and the mining escape capsule refrigerating system provided by the invention has the advantages that performance is safe and stable, regulation is flexible and convenient, is energy-saving, environment-friendly and economic, and the like.
Owner:中船(天津)环境工程技术有限公司
A utilization system for recovery of pressure energy and cold energy of pipeline network natural gas
InactiveCN104863645BIncrease profitEfficient recyclingLighting and heating apparatusIce productionElectricityEnergy recovery
Owner:茂盟(上海)工程技术股份有限公司
A device for preventing ice blockage in a device for preparing ice slurry by supercooling
InactiveCN105135776BIncreased pulsationHigh shear forceLighting and heating apparatusIce productionSuper coolingFluid shear
Owner:CENT SOUTH UNIV
Refrigerating device and water dispenser with the refrigerating device
PendingCN114076498AAvoid ice blockageStable and reliable water outletLighting and heating apparatusBeverage vesselsEngineeringPhysics
The invention discloses a refrigerating device and a water dispenser with the refrigerating device. The refrigerating device comprises a cold tank, a refrigerating system and a water distribution disc, wherein the refrigerating system comprises an evaporator arranged on the cold tank, and the evaporator is used for refrigerating water in the cold tank; and the water distribution disc is arranged in the cold tank, the lower surface of the outer edge of the water distribution disc is higher than the evaporator, and the distance between the lower surface of the outer edge of the water distribution disc and the upper end of the evaporator is larger than or equal to 8 mm. The refrigerating device has the advantages that ice blockage is avoided, and reliable water outlet is guaranteed.
Owner:FOSHAN SHUNDE MIDEA WATER DISPENSER MFG +1
Device for preparing ice slurry by use of spiral drawknife device
InactiveCN104634034AAvoid ice blockageImprove work efficiencyLighting and heating apparatusIce productionEngineeringSolution flow
The invention discloses a spiral drawknife device for preparing an ice slurry. The device is capable of preventing from producing ice block due to excessively thick ice layer, reducing replacement of drawknives and reducing the production cost, and is convenient in use. The device comprises an ice slurry generator and an ice scraping mechanism, wherein the ice scraping mechanism comprises a motor, a spiral shaft and a spiral scraper arranged on the spiral shaft, the spiral scraper is stretched along an axial direction, and the spiral direction of the spiral shaft and the spiral scraper is a direction of ice slurry solution flowing toward an ice outlet; the spiral shaft is driven by the motor, and the spiral shaft is arranged on an axial line of the ice slurry generator. The structural features of the spiral shaft and the spiral scraper are used by the device for preparing the ice slurry by use of the spiral drawknife, the ice slurry solution flows towards the ice outlet under an axial force effect, the ice layer is timely destroyed under a peripheral force effect, the ice block due to the excessively thick ice layer is prevented from being produced, and the working efficiency is high. Meanwhile, the mechanical wear of the spiral scraper is relatively less without being frequently replaced, the service life of the spiral scraper is prolonged, the replacement cost of the spiral scraper is reduced, and the production cost is lowered.
Owner:TIANJIN UNIV OF COMMERCE
Oil gas recovery device
ActiveCN112175657ATransport impactRapid coolingLiquid hydrocarbon mixture recoveryIndirect heat exchangersPetroleum engineeringPhysics
The invention relates to an oil gas recovery device. The oil gas recovery device comprises a water removal heat exchanger, a water separator and a condensate oil heat exchanger. The water removal heatexchanger comprises a first cooling medium conveying pipeline and an oil gas conveying pipeline which are located in the shell, the first cooling medium conveying pipeline and the oil gas conveying pipeline are provided with two sections of crossed parts, and the first cooling medium conveying pipeline and the oil gas conveying pipeline are provided with at least one part extending in parallel. Aheat conduction metal layer is arranged between the parallel extending parts, the bottom and the top of a shell part of the water separator are provided with at least two baffles which are verticallyarranged side by side and spaced by a certain distance, and the tops of the baffles are provided with arc-shaped structures bent in the oil-gas inlet direction. A second cooling medium is arranged inthe condensed oil heat exchanger. The oil gas recovery device is simple, and ice blockage can be prevented while oil gas recovery is guaranteed.
Owner:深圳市奥图威尔科技有限公司
Capillary throttling device
InactiveCN108332460AAvoid ice blockageQuick washMechanical apparatusEfficient regulation technologiesEngineeringAir bubble
The invention discloses a capillary throttling device. The device comprises a refrigerant pipe, an electronic expansion valve and a capillary pipe. The electronic expansion valve is arranged on the outer wall of the refrigerant pipe. The capillary pipe is arranged on the electronic expansion valve. A filter element is fixedly arranged on the inner wall of the refrigerant pipe. The pipe wall of therefrigerant pipe communicates with a first water inlet pipe. The first water inlet pipe is located at the right side of the filter element. The end, away from the refrigerant pipe, of the first waterinlet pipe communicates with a water storage ball. A transverse pipe is arranged in the water storage ball. A spring is movably arranged in the transverse pipe. Slide blocks are fixedly arranged at the two ends of the spring correspondingly. Connecting rods are fixedly arranged at the ends, away from the spring, of the slide blocks correspondingly. Pressing plates are fixedly arranged at the ends, away from the slide blocks, of the connecting rods correspondingly. The side walls of the sides, away from the connecting rods, of the pressing plates are fixedly connected with the inner wall of the water storage ball. The capillary throttling device is convenient to operate, reverse rapid cleaning can be performed on the filter element, and remaining of air bubbles and impurities on the filterelement is avoided.
Owner:安徽科凌仪器有限公司
Ice crystal blocking method and device, and ice making machine
PendingCN111442585AAvoid getting lostIncrease profitLighting and heating apparatusIce productionWater iceEngineering
The invention relates to the technical field of supercooled water ice making, in particular to an ice crystal blocking method and device, and an ice making machine. The ice crystal blocking method comprises the steps that a heating assembly is controlled to heat a pipe body of a supercooled water jet pipe extending into an ice slurry generator for at least a preset time; a detection signal representing the temperature of the pipe body of the supercooled water jet pipe output from a temperature sensor is received; and the detection signal is processed, and a signal representing the working state of the heating assembly is output. According to the ice crystal blocking method, the ice blockage in the pipeline can be prevented, and the ice making efficiency can be improved.
Owner:乾顺能源技术(上海)有限公司
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