CN113864155A - Compression assembly, enthalpy-increasing compressor and air conditioning system - Google Patents
Compression assembly, enthalpy-increasing compressor and air conditioning system Download PDFInfo
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- CN113864155A CN113864155A CN202111242717.3A CN202111242717A CN113864155A CN 113864155 A CN113864155 A CN 113864155A CN 202111242717 A CN202111242717 A CN 202111242717A CN 113864155 A CN113864155 A CN 113864155A
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- compression mechanism
- pressure stage
- stage compression
- pressure
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- 238000007906 compression Methods 0.000 title claims abstract description 69
- 230000006835 compression Effects 0.000 title claims abstract description 66
- 238000004378 air conditioning Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000007812 deficiency Effects 0.000 abstract description 3
- 230000001502 supplementing effect Effects 0.000 description 7
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
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- 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
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- 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
-
- 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
- F25B31/00—Compressor arrangements
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
- F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Combustion & Propulsion (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The application provides a compression subassembly, increase enthalpy compressor and air conditioning system. The compression assembly comprises a shell, wherein a low-pressure stage compression mechanism and a high-pressure stage compression mechanism are arranged in the shell; a sealed chamber disposed outside the housing; the sealed chamber comprises an inlet and an outlet; the inlet can lead in the exhaust of the low-pressure stage compression mechanism, and the outlet can lead out gas to the air suction port of the high-pressure stage compression mechanism. The sealed cavity is arranged outside the compressor shell, so that exhaust of the low-pressure stage compression mechanism can be introduced, and gas in the sealed cavity can be led out to the air suction port of the high-pressure stage compression mechanism, so that the volume deficiency of the medium-pressure cavity in the pump body can be compensated, the low-pressure stage exhaust has enough space to be stored, and the problem of over-compression is prevented; meanwhile, the sealing cavity arranged outside the shell is equivalent to one part of a medium-pressure cavity of the compressor, and the volume of the middle cavity inside the pump body can be properly reduced, so that the size of the hollow partition plate in the compressor is reduced, and the span of the crankshaft is reduced.
Description
Technical Field
The application belongs to the technical field of air conditioning systems, and particularly relates to a compression assembly, an enthalpy-increasing compressor and an air conditioning system.
Background
The appearance of the two-stage enthalpy increasing technology solves the problems that when ordinary household air conditioners and heat pump water heaters are used in summer hot winter cold areas and north cold areas, the air conditioner products generally have poor low-temperature heating effect, slow high-temperature refrigeration and low energy efficiency, and the household heat pump water heaters have poor low-temperature heating effect.
To big discharge capacity compressor, receive the structural constraint, the inside sealed cavity volume of pump body is difficult to enlarge, leads to the low pressure stage cylinder to have the overcompression problem, mainly because the low pressure stage exhaust is discharged behind the sealed cavity, and the low pressure stage exhaust can be greater than the high pressure stage suction capacity, and the high pressure stage cylinder can't in time inhale, leads to partial low pressure stage exhaust to be detained and makes pressure rise, and the loss increases, influences the efficiency.
Disclosure of Invention
Therefore, the application provides a compression subassembly, increase enthalpy compressor and air conditioning system, can solve prior art low-pressure stage exhaust can be greater than the high-pressure stage suction capacity, and the high-pressure stage cylinder can't in time inhale, leads to partial low-pressure stage exhaust to be detained and makes the problem that pressure risees.
In order to solve the above problems, the present application provides a compressing assembly including:
the compressor comprises a shell, wherein a low-pressure stage compression mechanism and a high-pressure stage compression mechanism are arranged in the shell;
a sealed chamber disposed outside the housing; the sealed chamber comprises an inlet and an outlet; the inlet can lead in the exhaust of the low-pressure stage compression mechanism, and the outlet can lead out gas to the air suction port of the high-pressure stage compression mechanism.
Optionally, the sealed chamber further comprises an air supplement port through which air can be injected into the sealed chamber.
Optionally, be equipped with the check valve on the tonifying qi passageway that the tonifying qi mouth communicates, the check valve can prevent sealed cavity warp the tonifying qi mouth outwards exhausts.
Optionally, the inlet and the outlet are integrated to form a communication port, a medium pressure chamber is included in the housing, and the communication port is communicated with the medium pressure chamber.
Optionally, the housing includes a middle pressure chamber, the inlet is communicated with the middle pressure chamber, and the outlet is communicated with the suction port of the high pressure stage compression mechanism.
Optionally, the total volume of the seal chamber and the intermediate pressure chamber is V1, and the displacement of the low pressure stage compression mechanism is V2, such that V1/V2 is greater than or equal to 1.8.
Optionally, the inlet has a flow area S, such that the ratio S/V2 is greater than or equal to 5.
According to another aspect of the present application, there is provided an enthalpy-increasing compressor comprising a compression assembly as described above.
Optionally, the enthalpy-increasing compressor further comprises a liquid distributor arranged outside the housing, and an exhaust port of the liquid distributor is communicated with an air suction port of the low-pressure stage compression mechanism.
According to yet another aspect of the present application, there is provided an air conditioning system comprising a compression assembly as described above or an enthalpy-increasing compressor as described above.
Optionally, the air conditioning system further includes a flash evaporator, the sealed chamber includes an air supply port, and an air outlet of the flash evaporator is communicated with the air supply port.
The present application provides a compression assembly comprising: the compressor comprises a shell, wherein a low-pressure stage compression mechanism and a high-pressure stage compression mechanism are arranged in the shell; a sealed chamber disposed outside the housing; the sealed chamber comprises an inlet and an outlet; the inlet can lead in the exhaust of the low-pressure stage compression mechanism, and the outlet can lead out gas to the air suction port of the high-pressure stage compression mechanism.
The sealed cavity is arranged outside the compressor shell, so that exhaust of the low-pressure stage compression mechanism can be introduced, and gas in the sealed cavity can be led out to the air suction port of the high-pressure stage compression mechanism, so that the volume deficiency of the medium-pressure cavity in the pump body can be compensated, the low-pressure stage exhaust has enough space to be stored, and the problem of over-compression is prevented; meanwhile, the sealing cavity arranged outside the shell is equivalent to one part of a medium-pressure cavity of the compressor, and the volume of the middle cavity inside the pump body can be properly reduced, so that the size of the hollow partition plate in the compressor is reduced, the span of a crankshaft is reduced, and the reliability is improved.
Drawings
FIG. 1 is a schematic structural diagram of an enthalpy-increasing compressor according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of the embodiment of the present application, FIG. 1;
FIG. 3 is a cross-sectional view from another angle of the embodiment of the present application as shown in FIG. 1;
fig. 4 is a schematic structural diagram of a sealed chamber according to an embodiment of the present application.
The reference numerals are represented as:
1. sealing the chamber; 11. an air inlet pipe; 12. an air outlet pipe; 13. a gas supplementing pipe; 14. a one-way valve; 2. a housing; 21. a low pressure cylinder; 22. a high pressure cylinder; 3. a liquid distributor.
Detailed Description
Referring collectively to fig. 1-4, in accordance with an embodiment of the present application, a compression assembly includes:
the compressor comprises a shell 2, wherein a low-pressure stage compression mechanism and a high-pressure stage compression mechanism are arranged in the shell 2;
a sealed chamber 1 disposed outside the housing 2; the sealed chamber comprises an inlet and an outlet; the exhaust gas can be guided into the low-pressure stage compression mechanism, and the outlet can guide the gas to a gas suction port of the high-pressure stage compression mechanism.
The sealed cavity 1 is arranged outside the compressor shell 2, so that exhaust of the low-pressure stage compression mechanism can be introduced, and gas in the sealed cavity can be led out to a gas suction port of the high-pressure stage compression mechanism, so that the volume deficiency of a medium-pressure cavity in the pump body can be compensated, the low-pressure stage exhaust has enough space for storage, and the problem of over-compression is prevented; meanwhile, the sealing cavity 1 arranged outside the shell 2 is equivalent to one part of a medium-pressure cavity of the compressor, and the volume of the middle cavity inside the pump body can be properly reduced, so that the size of the hollow partition plate in the compressor is reduced, the span of a crankshaft is reduced, and the reliability is improved.
Adopt this application compression assembly, solve big discharge capacity doublestage and increase enthalpy compressor, the volume of middling pressure chamber is difficult to enlarge by structural constraint, leads to the problem that low-pressure stage cylinder overcompressed and influences the efficiency.
In some embodiments, the sealed chamber 1 further comprises an air supply port through which air can be injected into the sealed chamber 1.
The air supplementing port is arranged on the sealing cavity 1, the enthalpy is required to be increased when the enthalpy-increasing compressor is used, gas can be injected through the air supplementing port, and the operation is simple and convenient.
In some embodiments, a check valve 14 is arranged on the air supply channel communicated with the air supply port, and the check valve 14 can prevent the sealed chamber 1 from exhausting outwards through the air supply port.
The one-way valve 14 can avoid the backflow caused by pressure fluctuation, and the running stability of the compressor is improved.
In some embodiments, the inlet and the outlet are integrally provided as a communication port, and the housing 2 contains a medium-pressure chamber therein, and the communication port communicates with the medium-pressure chamber.
Because the sealed chamber 1 is used as a buffer chamber of the medium-pressure cavity and is communicated with the medium-pressure cavity inside the shell 2, a single pipeline can be adopted to be communicated with the inside of the shell 2, the structure is simpler, and the manufacture and the assembly are convenient.
The middle pressure cavity refers to a cavity in a flange of the low-pressure stage compression mechanism and a cavity in a partition plate component of the two-stage compression mechanism.
In some embodiments, the housing 2 contains an intermediate pressure chamber therein, the inlet communicating with the intermediate pressure chamber and the outlet communicating with the suction inlet of the high pressure stage compression mechanism.
In the structure of this scheme, low pressure stage compression mechanism's exhaust is sent to in the sealed chamber 1 via the middling pressure chamber, only the export of sealed chamber 1 and high pressure stage compression mechanism's induction port intercommunication, middling pressure chamber and sealed chamber 1 constitute the series structure this moment, and the diaphragm assembly does not establish the gas vent to high pressure stage compression mechanism exhaust in traditional multistage compressor structure.
If the exhaust port of the partition plate assembly towards the high-pressure stage compression mechanism in the traditional multi-stage compressor structure is reserved, the medium-pressure cavity and the sealed cavity 1 are in a parallel structure at the moment.
In some embodiments, the total volume of the seal chamber 1 and the intermediate pressure chamber is V1, and the displacement of the low pressure stage compression mechanism is V2, such that V1/V2 is greater than or equal to 1.8. Preferably, the inlet has a flow area S such that the ratio S/V2 is greater than or equal to 5.
With the above-mentioned volume limitation, the energy efficiency of the compressor can be guaranteed to be optimal.
According to another aspect of the present application, there is provided an enthalpy-increasing compressor comprising a compression assembly as described above.
In some embodiments, the enthalpy-increasing compressor further includes a liquid separator 3 disposed outside the casing 2, and a discharge port of the liquid separator 3 is communicated with a suction port of the low-pressure stage compression mechanism.
In the case of the two-stage enthalpy-increasing compressor shown in fig. 1, the low pressure cylinder 21 is disposed in the upper portion of the casing 2, and the low pressure cylinder 21 may be disposed in the lower portion. The low-pressure refrigerant enters the low-pressure cylinder 21 through the liquid separator 3, and after the low-pressure cylinder 21 is compressed, low-pressure stage exhaust enters an intermediate cavity inside the pump body and enters the sealed cavity 1 through the air inlet pipe 11 communicated with the inlet.
Compare traditional doublestage enthalpy-increasing compressor, the sealed cavity 1 that adds has compensatied the volumetric not enough of pump body inside middling pressure chamber, makes the low pressure stage exhaust have sufficient space to store, prevents to produce the overcompression problem.
According to yet another aspect of the present application, there is provided an air conditioning system comprising a compression assembly as described above or an enthalpy-increasing compressor as described above.
In some embodiments, the air conditioning system further comprises a flash evaporator, and the sealed chamber 1 comprises an air supplementing port, and an air outlet of the flash evaporator is communicated with the air supplementing port.
The medium-pressure refrigerant of the flash evaporator enters the sealed chamber 1 through an air supplementing pipe 13 communicated with an air supplementing port, is mixed with the exhaust gas of the low-pressure stage compression mechanism, then enters the high-pressure stage compression mechanism through an air outlet pipe 12 communicated with an outlet to be compressed, and finally the high-pressure refrigerant obtained after the compression is finished is discharged through an air exhausting port on the shell 2 and enters a system to participate in circulation.
It is easily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (11)
1. A compression assembly, comprising:
the compressor comprises a shell (2), wherein a low-pressure-stage compression mechanism and a high-pressure-stage compression mechanism are arranged in the shell (2);
a sealed chamber (1) disposed outside the housing (2); the sealed chamber (1) comprises an inlet and an outlet; the inlet can lead in the exhaust of the low-pressure stage compression mechanism, and the outlet can lead out gas to the air suction port of the high-pressure stage compression mechanism.
2. A compression assembly according to claim 1 wherein the sealed chamber (1) further comprises an air supply port through which air can be injected into the sealed chamber (1).
3. The compression assembly according to claim 2, characterized in that the air supply channel communicating with the air supply opening is provided with a one-way valve (14), the one-way valve (14) being capable of preventing the sealed chamber (1) from exhausting outwards through the air supply opening.
4. A compression assembly according to any of claims 1-3 wherein the inlet and outlet are integrated as a communication port, the housing (2) containing an intermediate pressure chamber therein, the communication port communicating with the intermediate pressure chamber.
5. A compression assembly as claimed in any one of claims 1 to 3 wherein the housing (2) contains an intermediate pressure chamber therein, the inlet communicating with the intermediate pressure chamber and the outlet communicating with the suction inlet of the high pressure stage compression mechanism.
6. A compression assembly according to claim 5 wherein the combined volume of the sealed chamber (1) and the intermediate pressure chamber is V1 and the displacement of the low pressure stage compression mechanism is V2, satisfying V1/V2 greater than or equal to 1.8.
7. The compression assembly of claim 6, wherein the inlet has a flow area S such that the ratio of S/V2 is greater than or equal to 5.
8. An enthalpy-increasing compressor, characterized by comprising a compression assembly according to any one of claims 1 to 7.
9. The enthalpy-increasing compressor according to claim 8, further comprising a liquid separator (3) disposed outside the casing (2), wherein a discharge port of the liquid separator (3) communicates with a suction port of the low-pressure stage compression mechanism.
10. An air conditioning system comprising a compression assembly according to any one of claims 1 to 7 or an enthalpy-increasing compressor according to any one of claims 8 to 9.
11. Air conditioning system according to claim 10, characterized in that the air conditioning system further comprises a flash evaporator, the sealed chamber (1) comprises an air supply opening, and an air outlet of the flash evaporator is communicated with the air supply opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111242717.3A CN113864155A (en) | 2021-10-25 | 2021-10-25 | Compression assembly, enthalpy-increasing compressor and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111242717.3A CN113864155A (en) | 2021-10-25 | 2021-10-25 | Compression assembly, enthalpy-increasing compressor and air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113864155A true CN113864155A (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111242717.3A Pending CN113864155A (en) | 2021-10-25 | 2021-10-25 | Compression assembly, enthalpy-increasing compressor and air conditioning system |
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| CN (1) | CN113864155A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629112A (en) * | 2012-08-21 | 2014-03-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and pump body assembly thereof |
| CN103912496A (en) * | 2014-03-28 | 2014-07-09 | 西安庆安制冷设备股份有限公司 | Double-rotor double-stage compressor and refrigerating/heating system thereof |
| CN204025052U (en) * | 2014-06-27 | 2014-12-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Two-stage enthalpy increasing rotor-type compressor and air conditioner |
| CN104251206A (en) * | 2013-06-28 | 2014-12-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary double-stage compressor |
| JP2015036515A (en) * | 2013-08-10 | 2015-02-23 | ダイキン工業株式会社 | Compressor |
| CN109915375A (en) * | 2019-04-17 | 2019-06-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly and compressor |
-
2021
- 2021-10-25 CN CN202111242717.3A patent/CN113864155A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629112A (en) * | 2012-08-21 | 2014-03-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and pump body assembly thereof |
| CN104251206A (en) * | 2013-06-28 | 2014-12-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary double-stage compressor |
| JP2015036515A (en) * | 2013-08-10 | 2015-02-23 | ダイキン工業株式会社 | Compressor |
| CN103912496A (en) * | 2014-03-28 | 2014-07-09 | 西安庆安制冷设备股份有限公司 | Double-rotor double-stage compressor and refrigerating/heating system thereof |
| CN204025052U (en) * | 2014-06-27 | 2014-12-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Two-stage enthalpy increasing rotor-type compressor and air conditioner |
| CN109915375A (en) * | 2019-04-17 | 2019-06-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly and compressor |
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Application publication date: 20211231 |