WO2023077810A1 - Système d'alimentation en gaz pour palier de suspension et système de réfrigération - Google Patents

Système d'alimentation en gaz pour palier de suspension et système de réfrigération Download PDF

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Publication number
WO2023077810A1
WO2023077810A1 PCT/CN2022/098793 CN2022098793W WO2023077810A1 WO 2023077810 A1 WO2023077810 A1 WO 2023077810A1 CN 2022098793 W CN2022098793 W CN 2022098793W WO 2023077810 A1 WO2023077810 A1 WO 2023077810A1
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WIPO (PCT)
Prior art keywords
liquid
pipeline
gas
air supply
filling liquid
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PCT/CN2022/098793
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English (en)
Chinese (zh)
Inventor
张晓锐
陈远
张捷
邓善营
王铁伟
Original Assignee
青岛海尔空调电子有限公司
青岛海尔空调器有限总公司
海尔智家股份有限公司
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Publication of WO2023077810A1 publication Critical patent/WO2023077810A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0662—Details of hydrostatic bearings independent of fluid supply or direction of load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
    • F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B45/00—Arrangements for charging or discharging refrigerant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0338—Pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F17C2227/0316—Water heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
    • F17C2227/0348—Water cooling

Definitions

  • the present application relates to the technical field of refrigeration, for example, to an air supply system and a refrigeration system for suspension bearings.
  • the compressor is a key component in the field of air conditioning and refrigeration.
  • the bearings of the compressor include oil-lubricated bearings and suspension bearings, and the suspension bearings include magnetic suspension bearings and air suspension bearings.
  • the compressor using the suspension bearing does not need to use lubricating oil to lubricate the bearing, which avoids the mixing of lubricating oil and refrigerant to reduce the heat exchange efficiency of the air conditioning system.
  • the air suspension bearing needs to supply air to the bearing through a set of air supply system, so as to lubricate and support the rotor. Therefore, the stability of the air supply system is directly related to the performance of the compressor.
  • the prior art discloses an air supply system for suspension bearings.
  • a newly added compressor is used to extract gaseous refrigerant from the upper part of the condenser, and after being compressed, it passes into the air supply tank.
  • the air supply tank supplies air to the air suspension bearing of the compressor through the flow path.
  • the gas pressure is increased by adding a new compressor, although the gaseous refrigerant in the condenser can be supplied to the gas supply tank, but at the same time the gas supply tank The pressure in the tank increases sharply, making it impossible to supply gas stably to the tank. And adding a new compressor makes the control system more complex and costly.
  • Embodiments of the present disclosure provide an air supply system and a refrigeration system for suspension bearings, which solve the problem that the air supply system cannot stably supply air to the air supply tank.
  • the air supply system for suspension bearings includes:
  • the first circulation assembly includes a condenser and an evaporator connected to the condenser; the condenser communicates with the exhaust port of the compressor, and the evaporator communicates with the suction port of the compressor ;
  • the second circulation assembly includes an air supply tank and an air supply box; the air supply tank is communicated with the suspension bearing and used to supply air to it; the air supply box includes an outer cavity and an inner cavity arranged in the outer cavity chamber, and there is a filling liquid between the outer chamber and the inner chamber; the inner chamber takes air from the evaporator and/or the air supply line of the compressor, and supplies it to the air supply tank Gas; the inner cavity is a deformable cavity, and gas can be taken or supplied when deformation occurs;
  • the regulating component is used to change the phase of the filling liquid and force the inner cavity to deform; the regulating component includes a gas heating part, and the gas heating part transfers heat to the filling liquid through gas to vaporize it.
  • the gas heating part includes:
  • One end of the high-temperature gas pipeline communicates with the exhaust port, and the other end communicates with the evaporator; at least part of the high-temperature gas pipeline is located in the filling liquid.
  • a throttling assembly is provided on the high-temperature gas pipeline
  • the throttling assembly includes:
  • the first electromagnetic valve is arranged on the pipe section of the high-temperature gas pipeline between the filling liquid and the exhaust port.
  • the adjustment assembly also includes:
  • the liquid heating part is used for transferring heat to the filling liquid through the liquid to vaporize it.
  • the liquid heating part includes:
  • the first high-temperature liquid pipeline communicates with the cooling water pipeline of the condenser, and at least part of the first high-temperature liquid pipeline is located in the filling liquid.
  • the liquid heating part further includes:
  • the second high-temperature liquid pipeline communicates with the water tank, and at least part of the second high-temperature liquid pipeline is located in the filling liquid.
  • the regulating assembly further includes a heat absorbing part, and the heat absorbing part is used to transfer cold energy to the vaporized filling liquid to liquefy it.
  • the heat absorbing part comprises a liquid heat absorbing part
  • the liquid heat absorbing part includes:
  • the cryogenic liquid pipeline is connected to the refrigerated water pipeline of the evaporator; at least part of the cryogenic liquid pipeline is located in the filling liquid, and is used for transferring cold energy to the vaporized filling liquid through the liquid.
  • the heat absorption part also includes a gas heat absorption part
  • the gas heat absorption part includes:
  • the low-temperature gas pipeline is connected to the evaporation pipeline of the evaporator; at least part of the low-temperature gas pipeline is located in the filling liquid, and is used to transfer heat and cold to the vaporized filling liquid through gas.
  • the refrigeration system includes the air supply system for suspension bearings in any of the above embodiments.
  • the inner cavity obtains the gaseous refrigerant from the evaporator or the air supply pipeline, and the inner cavity deforms and expands after being filled with the gaseous refrigerant.
  • a pressure difference is formed between the outer cavity and the inner cavity.
  • the filling liquid is vaporized by the gas heating part, so that the pressure of the outer cavity is greater than that of the inner cavity pressure.
  • the gas in the outer cavity forces the inner cavity to deform and shrink, and at the same time, the gaseous refrigerant in the cavity is supplied to the gas supply tank, and finally the gas supply tank supplies the gaseous refrigerant to the suspension bearing.
  • Fig. 1 is a schematic diagram of an air supply system of a suspension bearing provided by an embodiment of the present disclosure
  • Fig. 2 is a schematic structural diagram of an air supply box provided by an embodiment of the present disclosure
  • Fig. 3 is a schematic diagram of another air supply system of a suspension bearing provided by an embodiment of the present disclosure
  • Fig. 4 is an enlarged view of part A of Fig. 3;
  • Fig. 5 is a schematic diagram of the first high-temperature liquid pipeline provided by an embodiment of the present disclosure
  • Fig. 6 is a schematic diagram of another air supply system of a suspension bearing provided by an embodiment of the present disclosure.
  • 100 compressor; 110: evaporator; 120: condenser; 130: economizer; 131: air supply pipeline;
  • 200 gas supply tank; 201: gas supply pipeline; 202: liquid supply pipeline; 210: gas supply box; 211: inner cavity; 212: outer cavity;
  • 300 high temperature gas pipeline; 310: first high temperature liquid pipeline; 320: second high temperature liquid pipeline; 321: water tank; 322: electric heater; 330: low temperature liquid pipeline
  • 510 the first one-way valve
  • 520 the second one-way valve
  • 530 the third one-way valve
  • 540 the fourth one-way valve
  • 550 the fifth one-way valve
  • 560 the sixth one-way valve.
  • orientations or positional relationships indicated by the terms “upper”, “lower”, “inner”, “middle”, “outer”, “front”, “rear” etc. are based on the orientations or positional relationships shown in the drawings. Positional relationship. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, some of the above terms may be used to indicate other meanings besides orientation or positional relationship, for example, the term “upper” may also be used to indicate a certain attachment relationship or connection relationship in some cases. Those skilled in the art can understand the specific meanings of these terms in the embodiments of the present disclosure according to specific situations.
  • connection can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or two devices, components or Internal connectivity between components.
  • A/B means: A or B.
  • a and/or B means: A or B, or, A and B, these three relationships.
  • the air conditioning system generally includes a compressor 100, a condenser 120, an economizer 130, a throttling device and an evaporator 110, wherein the condenser 120 communicates with the exhaust port of the compressor 100, and the condenser 120 passes through the economizer 130 and the throttling device Connected to the evaporator 110, the evaporator 110 is connected to the suction port of the compressor 100, the refrigerant discharged from the exhaust port of the compressor 100 passes through the condenser 120, the economizer 130, the throttling device and the evaporator 110 in sequence, and finally returns to the The compressor 100 re-compresses, and thus circulates the refrigerant.
  • the condenser 120 conducts the heat generated by it to the outdoor for cooling through the cooling water pipeline; the evaporator 110 conducts the cold generated by it to the indoor cooling through the chilled water pipeline.
  • the compressor 100 communicates with the economizer 130 through the air supply pipeline 131 , and the economizer 130 can supply air to the compressor 100 through the air supply pipeline 131 .
  • an embodiment of the present disclosure provides an air supply system for a suspension bearing, including a compressor 100 , a first circulation assembly, a second circulation assembly, and an adjustment assembly.
  • the compressor 100 includes a suspension bearing;
  • the first circulation assembly includes a condenser 120 and an evaporator 110 connected to the condenser 120;
  • the condenser 120 is connected to the exhaust port of the compressor 100, and the evaporator 110 is connected to The suction port is connected;
  • the second circulation assembly includes an air supply tank 200 and an air supply box 210;
  • the air supply tank 200 is communicated with the suspension bearing and is used to supply air to it;
  • the air supply box 210 includes an outer cavity 212 and is arranged on the outer cavity 212
  • the inner chamber 211 takes air from the evaporator 110 and/or the gas supply pipeline 131, and supplies air to the air supply tank 200;
  • the inner cavity 211 obtains gaseous refrigerant from the evaporator 110 or the air supply pipeline 131 , and the inner cavity 211 deforms and expands after being filled with the gaseous refrigerant. After the filling liquid between the outer cavity 212 and the inner cavity 211 undergoes a phase change, a pressure difference is formed between the outer cavity 212 and the inner cavity 211. When the inner cavity 211 is filled with gas, the filling liquid is vaporized by the gas heating part, making the outer cavity The pressure of 212 is greater than the pressure of inner cavity 211 .
  • the gas in the outer cavity 212 forces the inner cavity 211 to deform and shrink, and at the same time, the gaseous refrigerant in the cavity is supplied to the gas supply tank 200 , and finally the gas supply tank 200 supplies the gaseous refrigerant to the suspension bearing.
  • the pressure of the outer cavity 212 is lower than the pressure of the inner cavity 211, the inner cavity 211 is no longer compressed and can continue to take in air, and the inner cavity 211 deforms and expands again while taking in air.
  • Such a reciprocating cycle stably supplies air to the air supply tank 200 through the air supply box 210 .
  • the inner cavity 211 adopts a corrugated airbag.
  • the corrugated airbag is gradually deformed and expanded; when the filling liquid is vaporized so that the pressure of the outer cavity 212 is greater than the pressure of the inner cavity 211, the gas forces the inner cavity 211 to deform and shrink, and at the same time, the refrigerant in the inner cavity 211 is supplied to the supply. Gas tank 200.
  • the corrugated airbag has a good heat insulation function to avoid heat exchange between the outer cavity 212 and the inner cavity 211.
  • a first pressure sensor is disposed in the inner cavity 211 .
  • the first pressure sensor is used to monitor the pressure in the inner cavity 211 .
  • the air supply tank 200 is provided with a second pressure sensor.
  • the second pressure sensor is used to monitor the pressure of the air supply tank 200 .
  • the outer chamber 212 obtains liquid refrigerant from the evaporator 110 as the filling liquid, or, the outer chamber 212 obtains the liquid refrigerant from the condenser 120 as the filling liquid, or, the outer chamber 212 obtains the liquid refrigerant from the evaporator 110 and the condenser 120 simultaneously. Obtain liquid refrigerant as the charge fluid.
  • the outer chamber 212 simultaneously obtains liquid refrigerant from the evaporator 110 and the condenser 120 through a liquid extraction line, and the liquid extraction line includes a main pipe section, a first branch pipe section and a second branch pipe section.
  • the inlet of the first branch pipe section is connected to the evaporator 110
  • the inlet of the second branch pipe section is connected to the condenser 120
  • the outlet of the first branch pipe section and the outlet of the second branch pipe section are connected to the inlet of the main pipe section
  • the outlet of the main pipe section is connected to the External cavity 212 .
  • the liquid refrigerant in the evaporator 110 can enter the outer chamber 212 sequentially through the first branch pipe section and the main pipe section, and the liquid refrigerant in the condenser 120 can enter the outer chamber 212 through the second branch pipe section and the main pipe section sequentially.
  • the first branch pipe section is provided with a second solenoid valve 420
  • the second branch pipe section is provided with a third solenoid valve 430
  • the main pipe section is provided with a first one-way valve 510 .
  • the outer chamber 212 can take liquid from the evaporator 110 or the condenser 120 , or take liquid from the evaporator 110 and the condenser 120 at the same time.
  • the filling liquid in the outer chamber 212 can be prevented from flowing back into the evaporator 110 and the condenser 120 by the first one-way valve 510 .
  • the evaporator 110 communicates with the inner chamber 211 through the fourth solenoid valve 440 and the second one-way valve 520 in sequence.
  • the fourth solenoid valve 440 When the fourth solenoid valve 440 is in an open state, the inner chamber 211 can obtain gaseous refrigerant from the evaporator 110 .
  • the conduction direction of the second one-way valve 520 is limited to lead from the evaporator 110 to the inner chamber 211 , so as to prevent the gas in the inner chamber 211 from flowing back into the evaporator 110 .
  • the air supply pipeline 131 communicates with the inner cavity 211 through the fifth solenoid valve 450 and the third one-way valve 530 in sequence.
  • the inner cavity 211 can obtain gaseous refrigerant from the supplementary gas pipeline 131 .
  • the conduction direction of the third one-way valve 530 is limited to lead from the gas supply pipeline 131 to the inner cavity 211 , so as to prevent the gas in the inner cavity 211 from flowing back into the gas supply pipeline 131 .
  • the pressure of the air supply pipeline 131 is greater than the pressure of the evaporator 110 , the fifth solenoid valve 450 is opened and the fourth solenoid valve 440 is closed, so that the inner chamber 211 takes air from the air supply pipeline 131 preferentially.
  • the pressure supplied from the inner chamber 211 to the air supply tank 200 is relatively high, thereby improving the effect of the air supply tank 200 supplying air to the air suspension bearing.
  • the gas heating section includes a high temperature gas line 300 .
  • One end of the high-temperature gas pipeline 300 is connected to the exhaust port, and the other end is connected to the evaporator 110; at least part of the high-temperature gas pipeline 300 is located in the filling liquid.
  • the high-temperature and high-pressure gas discharged from the compressor 100 enters the evaporator 110 through the high-temperature gas pipeline 300, and when the gas passes through the section of the high-temperature gas pipeline 300 located in the filling liquid, it transfers heat to the filling liquid and vaporizes the filling liquid.
  • the pressure in the outer chamber 212 increases, and the inner chamber 211 is compressed and deformed to shrink, and at the same time, the gaseous refrigerant in the chamber is supplied to the gas supply tank 200 .
  • a throttling assembly is provided on the high-temperature gas pipeline 300 ;
  • the throttling assembly includes an expansion valve 411 and a first solenoid valve 410 .
  • the expansion valve 411 is arranged on the pipe section of the high-temperature gas pipeline 300 between the filling liquid and the evaporator 110;
  • the first solenoid valve 410 is arranged on the pipe section of the high-temperature gas pipeline 300 between the filling liquid and the exhaust port superior.
  • the first electromagnetic valve 410 is open, the high temperature and high pressure gas discharged from the compressor 100 can flow to the evaporator 110 through the high temperature gas pipeline 300 .
  • the high-temperature gas in the high-temperature gas pipeline 300 is liquefied after exchanging heat with the filling liquid, and flows to the evaporator 110 after being throttled by the expansion valve 411 .
  • the adjustment assembly further includes a liquid heating part, which is used to transfer heat from the liquid to the filling liquid to vaporize it.
  • the liquid heating part includes a first high-temperature liquid pipeline 310 .
  • the first high-temperature liquid pipeline 310 communicates with the cooling water pipeline of the condenser 120 , and at least part of the first high-temperature liquid pipeline 310 is located in the filling liquid.
  • the temperature of the cooling water rises.
  • the high-temperature cooling water passes through the section of the first high-temperature liquid pipeline 310 located in the filling liquid, it transfers heat to the filling liquid and vaporizes the filling liquid. The thermal energy of the cooling water is fully utilized.
  • the first high-temperature liquid pipeline 310 is provided with a sixth single solenoid valve.
  • the sixth electromagnetic valve 460 is opened, high-temperature cooling water circulates in the first high-temperature liquid pipeline 310 .
  • the liquid heating part further includes a water tank 321 and a second high-temperature liquid pipeline 320 .
  • the inside of the water tank 321 is filled with hot water; the second high-temperature liquid pipeline 320 communicates with the water tank 321, and at least part of the second high-temperature liquid pipeline 320 is located in the filling liquid.
  • an electric heater 322 is provided in the water tank 321 , and the temperature of the liquid in the water tank 321 can be maintained by the electric heater 322 .
  • the heating rate of the liquid can be adjusted by controlling the power of the electric heater 322 , so as to speed up or slow down the gasification rate of the phase change of the filling liquid, and then adjust the rate of gas supply from the inner chamber 211 to the gas supply tank 200 .
  • the pressure in the air supply tank 200 is relatively high, and the inner cavity 211 only needs to slowly supply air to the air supply tank 200 to meet the requirements of the air supply system.
  • the power of the electric heater 322 is reduced to keep the temperature of the liquid in the second high-temperature liquid pipeline 320 low, so that the vaporization rate of the filling liquid decreases.
  • the time for the inner cavity 211 to exhaust gas is prolonged, and the inner cavity 211 exhausts the air to the air supply tank 200 at a slower rate.
  • the second high-temperature liquid pipeline 320 is provided with a seventh solenoid valve 470 .
  • the seventh solenoid valve 470 When the seventh solenoid valve 470 is opened, the high-temperature liquid circulates in the second high-temperature liquid pipeline 320 .
  • a temperature sensor is provided in the water tank 321 .
  • the water temperature in the water tank 321 is monitored by a temperature sensor.
  • the regulating assembly further includes a heat absorbing part, which is used to transfer cooling energy to the vaporized filling liquid to liquefy it.
  • a heat absorbing part which is used to transfer cooling energy to the vaporized filling liquid to liquefy it.
  • the heat absorbing part includes a liquid heat absorbing part; the liquid heat absorbing part includes a low-temperature liquid pipeline 330, and the low-temperature liquid pipeline 330 is connected to the chilled water pipeline of the evaporator 110; at least part of the low-temperature liquid pipeline 330 is located in the filling liquid , used to transfer cold energy through the liquid to the vaporized filling liquid.
  • the temperature of the chilled water decreases.
  • the low-temperature frozen water passes through the section of the low-temperature liquid pipeline 330 located in the filling liquid, it transfers cooling energy to the filling liquid and re-liquefies the vaporized filling liquid.
  • the cooling energy of chilled water is fully utilized.
  • cryogenic liquid pipeline 330 is provided with an eighth solenoid valve 480 .
  • the eighth solenoid valve 480 is opened, the low-temperature liquid circulates in the low-temperature liquid pipeline 330 .
  • the heat absorbing part also includes a gas heat absorbing part;
  • the gas heat absorbing part includes a low-temperature gas pipeline, and the low-temperature gas pipeline is connected to the evaporation pipeline of the evaporator 110; at least part of the low-temperature gas pipeline is located in the filling liquid, used To transfer heat and cold to the vaporized filling liquid through the gas.
  • the low-temperature gaseous refrigerant in the evaporating pipeline passes through the low-temperature gas pipeline and passes through the section of the low-temperature gas pipeline located in the filling liquid, it transfers cooling energy to the filling liquid and re-liquefies the vaporized filling liquid.
  • the low-temperature gaseous refrigerant in the evaporation pipeline can lower the indoor temperature and at the same time adjust the air pressure of the outer cavity 212 .
  • the inner chamber 211 communicates with the gas supply tank 200 through the ninth solenoid valve 490 and the fourth one-way valve 540 in sequence.
  • the ninth solenoid valve 490 When the ninth solenoid valve 490 is in an open state, the inner cavity 211 can supply the gaseous refrigerant to the gas supply tank 200 .
  • the conduction direction of the fourth one-way valve 540 is limited to lead from the inner cavity 211 to the gas supply tank 200 , so as to prevent the gas in the gas supply tank 200 from flowing back into the inner cavity 211 .
  • the air supply tank 200 communicates with the air suspension bearing of the compressor 100 through an air supply pipeline 201 .
  • the fifth one-way valve 550 is provided on the air supply pipeline 201, and the conduction direction of the fifth one-way valve 550 is limited to lead from the air supply tank 200 to the air suspension bearing, which can prevent the gaseous refrigerant in the air suspension bearing from flowing back to the air supply.
  • Inside the tank 200 the tank 200.
  • the gas supply pipeline 201 communicates with the evaporator 110 or the condenser 120 through the liquid supply pipeline 202 .
  • the evaporator 110 or the condenser 120 supplies liquid to the liquid supply pipeline 202, and the liquid in the liquid supply pipeline 202 enters the gas supply pipeline 201 and mixes with the gas from the gas supply tank 200 to form a gas-liquid two-phase medium. After the gas-liquid two-phase medium enters the flow channel in the air suspension bearing, it becomes a gaseous refrigerant after throttling and heat absorption.
  • the liquid supply pipeline 202 communicates with the gas supply pipeline 201 through the tenth electromagnetic valve 491 and the sixth one-way valve 560 in sequence.
  • the tenth electromagnetic valve 491 is opened, the liquid supply pipeline 202 can supply liquid refrigerant to the air supply pipeline 201 .
  • the conduction direction of the sixth one-way valve 560 is limited to lead from the liquid supply pipeline 202 to the gas supply pipeline 201, which can prevent the gas in the gas supply pipeline 201 from flowing to the liquid supply pipeline 202.
  • a third pressure sensor is provided on the liquid supply pipeline 202 .
  • the third pressure sensor is used to monitor the pressure of the liquid supply pipeline 202 .
  • the pressure of the liquid supply pipeline 202 can be adjusted by controlling the opening of the ninth solenoid valve 490 , so that the pressure of the liquid supply pipeline 202 is consistent with the pressure of the gas supply tank 200 .
  • Step 1 Control the opening of the fourth electromagnetic valve 440, and the inner cavity 211 obtains the gaseous refrigerant from the evaporator 110; Gradually deform and expand after gas;
  • Step 2 After the inner chamber 211 is filled with the gaseous refrigerant, the first electromagnetic valve 410 is controlled to open, and the high-temperature gas pipeline 300 is conducted. The high-temperature gas exchanges heat with the filling liquid. After the filling liquid is vaporized, the pressure of the outer cavity 212 is greater than that of the inner cavity 211, and the gas in the outer cavity 212 forces the deformation of the inner cavity 211 to shrink;
  • Step 3 Control the opening of the ninth solenoid valve 490, and squeeze the gaseous refrigerant in the cavity to the gas supply tank 200 while the inner cavity 211 deforms and shrinks;
  • Step 4 After the gaseous refrigerant in the inner cavity 211 is emptied, the eighth solenoid valve 480 is controlled to open and the first solenoid valve 410 is closed, and the cryogenic liquid pipeline 330 is turned on. The chilled water exchanges heat with the vaporized filling liquid. After the vaporized filling liquid is re-liquefied, the pressure difference between the inner cavity 211 and the outer cavity 212 gradually disappears, and the inner cavity 211 is no longer squeezed by the gas in the outer cavity 212. At this time, the inner cavity The cavity 211 can continue to take air and expand.
  • step 2 only one of the high-temperature gas pipeline 300 , the first high-temperature liquid pipeline 310 and the second high-temperature liquid pipeline 320 may be connected, or both or all of them may be connected simultaneously.
  • Step 4 only one of the cryogenic liquid pipeline 330 and the cryogenic gas pipeline may be connected, or both may be connected simultaneously. Thus, the rate at which the inner cavity 211 supplies the air to the air supply tank 200 is adjusted.
  • the electric heater 322 in the water tank 321 is turned on, and the first solenoid valve 410 and the seventh solenoid valve 470 are controlled to open, so that the high-temperature gas pipeline 300 and the The second high-temperature liquid pipeline 320 is conducted synchronously.
  • the gasification rate of the filling liquid is accelerated, and the time for the inner cavity 211 to supply gas to the gas supply tank 200 is shortened.
  • the electric heater 322 in the water tank 321 is turned on, and the first solenoid valve 410, the sixth solenoid valve 460, and the seventh solenoid valve 470 are controlled simultaneously. Open, so that the high-temperature gas pipeline 300, the first high-temperature liquid pipeline 310 and the second high-temperature liquid pipeline 320 are simultaneously conducted.
  • the rate at which the inner chamber 211 supplies the air to the air supply tank 200 is further improved.
  • the arrangement of the above-mentioned various pipelines is not simply superimposed, but makes full use of the high-temperature gas refrigerant, low-temperature gas refrigerant, cooling water, and frozen water in the air-conditioning system for combined application with the air supply box 210 of the present invention, thereby stabilizing and
  • the gas supply tank 200 is regulatedly supplied with gas.
  • an embodiment of the present disclosure provides a refrigeration system, which includes the air supply system for a suspension bearing described in any of the above embodiments.

Abstract

La présente invention concerne un système d'alimentation en gaz pour un palier de suspension, comprenant : un compresseur (100), un premier ensemble de circulation, un second ensemble de circulation et un ensemble d'ajustement. Le second ensemble de circulation comprend un réservoir d'alimentation en gaz (200) et une boîte d'alimentation en gaz (210) ; la boîte d'alimentation en gaz (210) comprend une cavité externe (212) et une cavité interne (211) agencée dans la cavité externe (212), et il existe un fluide de remplissage entre la cavité externe (212) et la cavité interne (211) ; la cavité interne (211) prend du gaz à partir d'un évaporateur (110) et/ou d'une canalisation d'alimentation en gaz (131) et fournit le gaz au réservoir d'alimentation en gaz (200) ; la cavité interne (211) est une cavité déformable, et peut prendre ou fournir du gaz lorsqu'une déformation se produit ; et l'ensemble d'ajustement est utilisé pour changer la phase du fluide de remplissage de façon à forcer la cavité interne (211) à se déformer. La présente invention concerne également un système de réfrigération.
PCT/CN2022/098793 2021-11-08 2022-06-15 Système d'alimentation en gaz pour palier de suspension et système de réfrigération WO2023077810A1 (fr)

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