72results about How to "Avoid ice blockage" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.