CN114857696A - Magnetic suspension centrifugal air conditioning system - Google Patents
Magnetic suspension centrifugal air conditioning system Download PDFInfo
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- CN114857696A CN114857696A CN202210620093.2A CN202210620093A CN114857696A CN 114857696 A CN114857696 A CN 114857696A CN 202210620093 A CN202210620093 A CN 202210620093A CN 114857696 A CN114857696 A CN 114857696A
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- 239000000725 suspension Substances 0.000 title claims abstract description 45
- 238000004378 air conditioning Methods 0.000 title claims abstract description 15
- 239000003507 refrigerant Substances 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 238000011084 recovery Methods 0.000 claims description 26
- 238000005057 refrigeration Methods 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000005339 levitation Methods 0.000 claims 6
- 239000002689 soil Substances 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000001172 regenerating effect Effects 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 238000004781 supercooling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the technical field of magnetic suspension centrifugal air-conditioning systems, in particular to a magnetic suspension centrifugal air-conditioning system, which comprises a low-pressure magnetic suspension centrifugal compressor, a plurality of connecting pipes, an intercooler, a high-pressure magnetic suspension centrifugal compressor and a shell-and-tube condenser which are sequentially communicated, the invention adopts a two-stage compression technology, the compressor is a magnetic suspension centrifugal compressor, the refrigerating system is provided with a regenerative cycle, the heat source side exchanges heat between medium water and soil of the buried pipe, the refrigerant medium at the evaporator side exchanges heat with medium water absorbing the soil source, and the load side exchanges heat between the refrigerant medium and water to provide hot water, thereby effectively improving the heating capacity at low ambient temperature, improving the outlet temperature of the water at the load side, and saving energy and being practical.
Description
Technical Field
The invention relates to the technical field of magnetic suspension centrifugal air-conditioning systems, in particular to a magnetic suspension centrifugal air-conditioning system.
Background
The general hot air source pump air conditioning unit or water source heat pump air conditioner has low working efficiency and poor heating capability when the environmental temperature is lower, and can not meet the requirements of heating or domestic hot water in severe cold areas in winter. The pure electric heating water heating has larger energy consumption and poor economical and practical properties, and the coal or gas water heating wastes resources and pollutes the environment.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems of low working efficiency and poor heating capacity when the ambient temperature is low in the prior art, the invention provides a magnetic suspension centrifugal air-conditioning system which comprises a low-pressure magnetic suspension centrifugal compressor, a plurality of connecting pipes, an intercooler, a high-pressure magnetic suspension centrifugal compressor, a shell-and-tube condenser, a first throttle expansion valve, a heat recovery device, a second throttle expansion valve, a flooded evaporator, a circulating water pump and a buried pipe heat exchange system which are sequentially communicated, the invention adopts a two-stage compression technology, the compressor is the magnetic suspension centrifugal compressor, the refrigeration system is provided with a regenerative cycle, the heat source side is used for exchanging heat between medium water and soil of the buried pipe, the refrigerant medium at the evaporator side exchanges heat with the medium water absorbing the soil source, the load side is used for exchanging heat between the refrigerant medium and the water to provide hot water, the heating capacity at the low ambient temperature is effectively improved, and the outlet temperature of the water at the load side is improved, energy conservation and low cost, and effectively solves the existing problems.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a magnetic suspension centrifugal air-conditioning system comprises a low-pressure magnetic suspension centrifugal compressor, a plurality of connecting pipes, an intercooler, a high-pressure magnetic suspension centrifugal compressor, a shell-and-tube condenser, a first throttle expansion valve, a heat recoverer, a second throttle expansion valve, a flooded evaporator, a circulating water pump and a buried pipe heat exchange system which are sequentially communicated.
Specifically, the low-pressure magnetic suspension centrifugal compressor is provided with an inlet a and an outlet b, the intercooler is provided with an inlet c, an outlet d, an inlet e, an outlet f and an inlet g, wherein c-g-f are mixed gas refrigerants, e-d are mixed liquid refrigerants, the high-pressure magnetic suspension centrifugal compressor is provided with an inlet m and an outlet n, the shell-and-tube condenser is provided with an inlet p, an outlet q, an inlet 3 and an outlet 3, wherein the inlet p-outlet q is a first channel of the shell-and-tube condenser, and a circulating medium is a refrigerant; the inlet 3-the outlet 3 are the second channel of the shell-and-tube condenser, the circulating medium is load side water, the heat recovery device is provided with an inlet 1, an outlet 1, an inlet 2 and an outlet 2, wherein the inlet 1-the outlet 1 is a first channel of the heat recovery device, the inlet 2-the outlet 2 is a second channel of the heat recovery device, the flooded evaporator is provided with an inlet z, an outlet w, an inlet 4 and an outlet 4, the inlet z-the outlet w is the first channel of the flooded evaporator, the inlet 4-the outlet 4 is the second channel of the flooded evaporator, the first channel circulates the refrigerant medium to absorb heat, and the second channel circulates the heat source side buried tube medium water.
Specifically, the low-pressure magnetic suspension centrifugal compressor is discharged from an outlet b, the discharged exhaust gas enters the top of the intercooler through an inlet c after passing through the connecting pipes, the refrigerant of the intercooler from a top inlet c and an inlet g is mixed and then flows out of the intercooler through an outlet f, the refrigerant gas from the outlet f of the intercooler enters the high-pressure magnetic suspension centrifugal compressor through an inlet m after passing through the connecting pipes and is compressed, the compressed high-pressure refrigerant gas enters the shell-and-tube condenser through an outlet n and is condensed and released heat, wherein the load side water is exchanged with the high-temperature refrigerant medium in the shell-and-tube condenser through an inlet 3 and an outlet 3 to obtain hot water, the refrigerant gas medium in the shell-and-tube condenser is condensed into liquid, and a small part of the refrigerant after the condenser is throttled and depressurized through a first expansion valve, a small part of throttled refrigeration enters the top of the intercooler through an inlet g and is flashed into gas, most of refrigeration liquid from the shell-and-tube condenser enters the bottom of the intercooler through an inlet e and is subcooled, the subcooled refrigeration liquid enters the heat recovery device through an inlet 1 through an outlet d and is further subcooled, the subcooled low-temperature refrigeration liquid flows out through an outlet 1 and then enters the flooded evaporator through an inlet z after passing through the second throttling expansion valve to be subjected to heat absorption and evaporation, wherein water in the buried pipe heat exchange system is pressurized and flows through a circulating water pump to exchange heat with a low-temperature low-pressure refrigerant medium in the flooded evaporator, the evaporated refrigerant gas flows out of the flooded evaporator through an outlet w, and the low-temperature low-pressure refrigerant gas from the flooded evaporator enters the heat recovery device through an inlet 2 to exchange heat, refrigerant gas is overheated, the overheated refrigerant gas from the heat recovery device flows out of the outlet 2, then passes through the connecting pipes, enters the low-pressure-stage magnetic suspension centrifugal compressor through the inlet a, and is compressed, and double-stage compression refrigeration cycle of a heat recovery process is completed.
The invention has the beneficial effects that: the invention provides a magnetic suspension centrifugal air conditioning system, which adopts a two-stage compression technology, wherein a compressor is a magnetic suspension centrifugal compressor, a refrigerating system is provided with a regenerative cycle, medium water and buried pipe soil heat exchange are carried out on a heat source side, a refrigerant medium on an evaporator side exchanges heat with medium water absorbing the soil source, a refrigerant medium and water exchange are carried out on a load side, hot water is provided, the heating capacity at low ambient temperature is effectively improved, the outlet water temperature of the water on the load side is improved, and the magnetic suspension centrifugal air conditioning system is energy-saving and practical.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
In the figure, 1 a low-pressure level magnetic suspension centrifugal compressor, 2 a plurality of connecting pipes, 3 an intercooler, 4 a high-pressure level magnetic suspension centrifugal compressor, 5 a shell and tube condenser, 6 a first throttle expansion valve, 7 a heat recoverer, 8 a second throttle expansion valve, 9 a flooded evaporator, 10 a circulating water pump and 11 a buried pipe heat exchange system.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The figures are simplified schematic diagrams illustrating the basic structure of the invention only in a schematic way, and thus are only shown in connection with the invention.
A magnetic suspension centrifugal air-conditioning system comprises a low-pressure magnetic suspension centrifugal compressor, a plurality of connecting pipes, an intercooler, a high-pressure magnetic suspension centrifugal compressor, a shell-and-tube condenser, a first throttle expansion valve, a heat recoverer, a second throttle expansion valve, a flooded evaporator, a circulating water pump and a buried pipe heat exchange system which are sequentially communicated.
Specifically, the low-pressure magnetic suspension centrifugal compressor is provided with an inlet a and an outlet b, the intercooler is provided with an inlet c, an outlet d, an inlet e, an outlet f and an inlet g, wherein c-g-f is a mixed gas refrigerant, e-d is a mixed liquid refrigerant, the high-pressure magnetic suspension centrifugal compressor is provided with an inlet m and an outlet n, the shell-and-tube condenser is provided with an inlet p, an outlet q, an inlet 3 and an outlet 3, wherein the inlet p-outlet q is a first channel of the shell-and-tube condenser, and a circulating medium is a refrigerant; the inlet 3-the outlet 3 are second channels of the shell-and-tube condenser, the circulating medium is load side water, the heat recovery device is provided with an inlet 1, an outlet 1, an inlet 2 and an outlet 2, wherein the inlet 1-the outlet 1 is a first channel of the heat recovery device, the inlet 2-the outlet 2 is a second channel of the heat recovery device, the flooded evaporator is provided with an inlet z, an outlet w, an inlet 4 and an outlet 4, the inlet z-the outlet w is a first channel of the flooded evaporator, the inlet 4-the outlet 4 is a second channel of the flooded evaporator, the first channel circulates the refrigerant medium to absorb heat, and the second channel circulates the heat side buried tube medium water.
Specifically, the low-pressure magnetic suspension centrifugal compressor is discharged from an outlet b, the discharged exhaust gas enters the top of an intercooler through an inlet c after passing through a plurality of connecting pipes, a refrigerant from the top inlet c and an inlet g of the intercooler is mixed and then flows out of the intercooler through an outlet f, refrigerant gas from the outlet f of the intercooler enters the high-pressure magnetic suspension centrifugal compressor through an inlet m after passing through a plurality of connecting pipes and is compressed, the compressed high-pressure refrigerant gas enters a shell-and-tube condenser through an outlet n and is condensed and released heat through an inlet p, wherein load side water is exchanged with a high-temperature refrigerant medium in the shell-and-tube condenser through an inlet 3 and an outlet 3 to obtain hot water, meanwhile, the refrigerant gas medium in the shell-and-tube condenser is condensed into liquid, a small part of the refrigerant after the condenser is throttled and depressurized through a first throttling expansion valve, a small part of the throttled refrigerant enters the top of the intercooler through the inlet g and is flashed into gas, most of refrigerating liquid from a shell-and-tube condenser enters the bottom of an intercooler for supercooling through an inlet e, the supercooled refrigerating liquid enters a heat recovery device through an inlet 1 for further supercooling after passing through an outlet d, the supercooled low-temperature refrigerating liquid flows out through the outlet 1 and then enters a flooded evaporator through an inlet z for heat absorption and evaporation, water in a buried tube heat exchange system is pressurized and flows through a circulating water pump to exchange heat with low-temperature and low-pressure refrigerant medium in the flooded evaporator, evaporated refrigerant gas flows out of the flooded evaporator through an outlet w, low-temperature and low-pressure refrigerant gas from the flooded evaporator enters a heat recovery device through an inlet 2 for heat exchange, the refrigerant gas is superheated, the superheated refrigerant gas from the heat recovery device flows out through a plurality of connecting pipes after flowing through an outlet 2 and then enters a low-pressure magnetic suspension centrifugal compressor through an inlet a to be compressed, completing a double-stage compression refrigeration cycle of a heat recovery process.
In one embodiment, all connecting copper pipes and refrigeration fittings are connected by welding, and all water system pipes and components are connected by threads.
The principle of the invention is briefly summarized, namely, the exhaust gas of the low-pressure-stage magnetic suspension centrifugal compressor enters an intercooler, the refrigerant gas at the upper part of the intercooler is sucked and compressed by the high-pressure-stage magnetic suspension centrifugal compressor, the exhaust gas of the high-pressure-stage magnetic suspension centrifugal compressor enters a shell-and-tube condenser to be condensed and release heat, and the refrigerant medium of the condenser exchanges heat with the water medium at the load side to provide hot water. A small part of the condensed refrigerant enters the upper part of the intercooler for flash evaporation after passing through the throttle valve 2. Most of refrigerant liquid of the shell-and-tube condenser enters an intercooler for supercooling, most of refrigerant liquid from the intercooler enters a heat recovery device for further supercooling, the refrigerant liquid from the heat recovery device enters a flooded evaporator for evaporation and heat absorption after passing through a throttling expansion valve, low-temperature refrigerant gas from the flooded evaporator enters the heat recovery device for gas superheating, and the superheated refrigerant gas is sucked and compressed by a low-pressure magnetic suspension centrifugal compressor to complete the circulation of a refrigeration system.
According to the refrigeration principle and the refrigerant characteristics, the suspension centrifugal type two-stage refrigeration cycle system can effectively improve the heating capacity at low ambient temperature; the heat energy-saving effect of the heat recovery system is obvious; the flooded evaporator has sufficient evaporation and good heat exchange effect; the buried pipe on the heat source side enables the medium water to absorb the heat of the soil source, and then the heat of the soil source is transferred to the magnetic suspension centrifugal refrigeration cycle system through the medium water, so that the energy-saving effect is achieved; the refrigeration circulating system does not need lubricating oil to lubricate a refrigeration compressor motor, the refrigeration system is stable and reliable in operation, and energy is saved for a large-scale centralized hot water supply system.
In the development process, some technical problems are solved:
1. because the flow and the pressure of the refrigerant of the two-stage compressor are difficult to control, measures are taken that pressure sensors are respectively added at the inlet and the outlet of the low-pressure stage compressor and the high-pressure stage compressor, the pressure sensors detect the pressure of a refrigeration system, the pressure of the refrigeration system is converted into temperature through the pressure of the refrigeration system, and a refrigeration electronic control system calculates the supercooling degree and the superheat degree of the refrigeration system, so that the flow of the refrigerant of the refrigeration system is controlled through the opening degree of a second throttle expansion valve (an electronic expansion valve), and finally the pressure of the refrigeration system is kept stable at a target control pressure.
2. The water side heat exchange of the shell and tube type condenser has higher requirement on water quality, and a water filter is added in and out of the shell and tube type condenser to filter impurities.
3. The buried pipe heat exchange system has higher requirement on soil quality, can not be used in places with rocks, measures are taken to avoid the places with the rocks, a deep well is drilled to exchange heat by adopting a snake heat exchange pipe, sometimes, water sources can be combined with rivers, lakes, oceans and the like to replace soil source heat exchange, and the heat exchange pipe of the buried pipe heat exchange system is directly placed in the rivers, the lakes and the oceans to exchange heat.
4. The refrigerant state and the pressure ratio of the two-stage compression intercooler are difficult to control, measures are taken to increase a pressure sensor of a refrigeration auxiliary device at the outlet of an exhaust pipe and an air return pipe of the compressor, and the high pressure and the low pressure of the refrigeration system are monitored constantly, so that the flow and the pressure value of the refrigerant in the intercooler are adjusted to be stable through the opening degree of a first throttle expansion valve (electronic expansion valve).
5. The magnetic suspension centrifugal compressor does not need lubricating oil to lubricate a compressor motor, and the precision and cleanliness of parts are ensured during process assembly, so that the compressor can stably and reliably run.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. A magnetic suspension centrifugal air-conditioning system is characterized by comprising a low-pressure magnetic suspension centrifugal compressor, a plurality of connecting pipes, an intercooler, a high-pressure magnetic suspension centrifugal compressor, a shell-and-tube condenser, a first throttle expansion valve, a heat recoverer, a second throttle expansion valve, a flooded evaporator, a circulating water pump and a buried pipe heat exchange system which are sequentially communicated.
2. A magnetic levitation centrifugal air conditioning system as recited in claim 1 wherein the low pressure stage magnetic levitation centrifugal compressor has an inlet a and an outlet b, the intercooler has an inlet c, an outlet d, an inlet e, an outlet f and an inlet g, wherein c-g-f is mixed gas refrigerant, e-d is mixed liquid refrigerant, the high pressure stage magnetic levitation centrifugal compressor has an inlet m and an outlet n, the shell and tube condenser has an inlet p, an outlet q, an inlet 3 and an outlet 3, wherein the inlet p-outlet q is the first channel of the shell and tube condenser, and the circulating medium is refrigerant; the inlet 3-the outlet 3 are the second channel of the shell-and-tube condenser, the circulating medium is load side water, the heat recovery device is provided with an inlet 1, an outlet 1, an inlet 2 and an outlet 2, wherein the inlet 1-the outlet 1 is a first channel of the heat recovery device, the inlet 2-the outlet 2 is a second channel of the heat recovery device, the flooded evaporator is provided with an inlet z, an outlet w, an inlet 4 and an outlet 4, the inlet z-the outlet w is the first channel of the flooded evaporator, the inlet 4-the outlet 4 is the second channel of the flooded evaporator, the first channel circulates the refrigerant medium to absorb heat, and the second channel circulates the heat source side buried tube medium water.
3. A magnetic levitation centrifugal air-conditioning system as claimed in claim 2, wherein the low pressure stage magnetic levitation centrifugal compressor is discharged from outlet b, the discharged discharge air passes through the plurality of connection pipes and enters the top of the intercooler through inlet c, the refrigerant in the intercooler from top inlet c and inlet g is mixed and then flows out of the intercooler through outlet f, the refrigerant gas from outlet f of the intercooler passes through the plurality of connection pipes and enters the high pressure stage magnetic levitation centrifugal compressor through inlet m to be compressed, the compressed high pressure refrigerant gas passes through outlet n and enters the shell and tube condenser through inlet p to be condensed and release heat, wherein the load side water exchanges with the high temperature refrigerant medium in the shell and tube condenser through inlet 3 and outlet 3 to obtain hot water, and the refrigerant gas medium in the shell and tube condenser is condensed into liquid, a small part of refrigerant after the condenser is throttled and decompressed by a first throttle expansion valve, a small part of throttled refrigerant enters the top of the intercooler through an inlet g and is flashed into gas, most of refrigerant liquid from the shell-and-tube condenser enters the bottom of the intercooler through an inlet e and is subcooled, the subcooled refrigerant liquid enters the heat recovery device through an inlet 1 after passing through an outlet d and is further subcooled, the subcooled low-temperature refrigerant liquid flows out of the outlet 1 and then enters the flooded evaporator through an inlet z to be evaporated in a heat absorption manner, water of the buried pipe heat exchange system flows through a circulating water pump in a pressurizing manner to exchange heat with low-temperature low-pressure refrigerant medium in the flooded evaporator, the evaporated refrigerant gas flows out of the flooded evaporator through an outlet w, and the low-temperature low-pressure refrigerant gas from the flooded evaporator enters the heat recovery device through an inlet 2 The refrigerant gas from the heat recovery device is superheated, flows out through the outlet 2, passes through the connecting pipes, enters the low-pressure magnetic suspension centrifugal compressor through the inlet a, and is compressed, and a two-stage compression refrigeration cycle of a heat recovery process is completed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210620093.2A CN114857696A (en) | 2022-06-02 | 2022-06-02 | Magnetic suspension centrifugal air conditioning system |
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| CN202210620093.2A CN114857696A (en) | 2022-06-02 | 2022-06-02 | Magnetic suspension centrifugal air conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117053435A (en) * | 2023-08-11 | 2023-11-14 | 浙江国祥股份有限公司 | Magnetic levitation and screw combined type double-cold-source air source heat pump and control method thereof |
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Application publication date: 20220805 |