CN116006470A - Pump body assembly, double-stage enthalpy-increasing compressor and air conditioner - Google Patents
Pump body assembly, double-stage enthalpy-increasing compressor and air conditioner Download PDFInfo
- Publication number
- CN116006470A CN116006470A CN202211682422.2A CN202211682422A CN116006470A CN 116006470 A CN116006470 A CN 116006470A CN 202211682422 A CN202211682422 A CN 202211682422A CN 116006470 A CN116006470 A CN 116006470A
- Authority
- CN
- China
- Prior art keywords
- air
- pump body
- enthalpy
- body assembly
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a pump body assembly, a two-stage enthalpy-increasing compressor and an air conditioner, which belong to the technical field of air conditioning, wherein the pump body assembly comprises a first-stage compression part and a second-stage compression part, a partition plate middle cavity is arranged between the first-stage compression part and the second-stage compression part, the first-stage compression part is provided with a first-stage air suction port, a first air exhaust port and a second air exhaust port, the second-stage compression part sucks air from the partition plate middle cavity, air flow exhausted from the first air exhaust port can enter the partition plate middle cavity, and air flow exhausted from the second air exhaust port can enter the partition plate middle cavity through an air compensation cavity and further comprises an air supplementing enthalpy-increasing port which is simultaneously communicated with the partition plate middle cavity and the air compensation cavity. The invention achieves the purpose of increasing the refrigerant suction quantity of the secondary compression part through the air supplementing of the multi-flow paths, improves the refrigerating capacity of the corresponding compressor, improves the heating efficiency and the heating speed of the corresponding compressor under extremely severe environments, reduces the heat loss in the heating process of the compressor, and is low-carbon and environment-friendly.
Description
Technical Field
The invention belongs to the technical field of air conditioning, and particularly relates to a pump body assembly, a two-stage enthalpy-increasing compressor and an air conditioner.
Background
The heat pump air conditioner has the characteristics of high efficiency, cleanness and no pollution, and has huge market demand. However, the existing heat pump air conditioner has the problems of poor low-temperature heating effect in winter and large high-temperature refrigeration attenuation in summer. In order to solve the above problems, in the prior art, the refrigerating capacity is enlarged by developing a two-stage enthalpy-increasing compressor structure on the basis of the structure of a traditional compressor, so as to ensure the refrigerating/heating function of the compressor in a severe environment.
The two-stage enthalpy-increasing compressor structure has the characteristics that the change of the volumetric efficiency along with the increase of the compression ratio is small, and the utilization rate of the pump body is obviously improved under the extreme working condition; however, in the actual research and development process, the problem that the pump body energy consumption loss is large because the high-pressure gas compensation is less in the secondary compression process in the operation process of the enthalpy-increasing compressor structure is found.
Disclosure of Invention
Therefore, the invention provides a pump body assembly, a two-stage enthalpy-increasing compressor and an air conditioner, which can solve the technical problem that the pump body energy consumption loss is large because high-pressure gas compensation is less in the secondary compression process of a two-stage compression part in the pump body assembly of the traditional two-stage enthalpy-increasing compressor in the prior art.
In order to solve the problems, the invention provides a pump body assembly which is applied to a two-stage enthalpy-increasing compressor and comprises a first-stage compression part and a second-stage compression part, wherein a partition plate middle cavity is arranged between the first-stage compression part and the second-stage compression part, the first-stage compression part is provided with a first air suction port, a first air exhaust port and a second air exhaust port, the first air exhaust port and the second air exhaust port are controllable to be on and off, the second-stage compression part is sucked in the partition plate middle cavity, the pump body assembly further comprises a gas compensation cavity communicated with the partition plate middle cavity, and a gas supplementing enthalpy-increasing port communicated with the partition plate middle cavity and the gas compensation cavity at the same time, and air flow discharged by the first air exhaust port can enter the partition plate middle cavity, and air flow discharged by the second air exhaust port can enter the partition plate middle cavity through the gas compensation cavity.
In some embodiments, the pump body assembly further comprises a buffer chamber in controllable communication with the gas compensation chamber, the supplemental air enthalpy-increasing port being in communication with the gas compensation chamber via the buffer chamber.
In some embodiments, a lower flange is arranged on one side of the primary compression part far away from the secondary compression part, and a lower cover plate is assembled on one end of the lower flange far away from the primary compression part, a sealing space is formed between the lower flange and the lower cover plate, a partition wall is arranged in the sealing space, the sealing space is partitioned into the buffer cavity and the gas compensation cavity by the partition wall, a one-way valve is arranged on the partition wall, and the one-way valve only allows air flow to flow into the gas compensation cavity from the buffer cavity.
In some embodiments, the wall thickness of the dividing wall is 3mm.
In some embodiments, an upper partition plate and a lower partition plate are arranged between the first-stage compression part and the second-stage compression part, and the upper partition plate and the lower partition plate are mutually buckled to form the partition plate middle cavity.
In some embodiments, a first air outlet is configured at a region of the lower flange corresponding to the air compensation cavity, the primary compression part comprises a primary air cylinder, a second air outlet is configured on the primary air cylinder, a third air outlet is configured on the lower partition plate, and the first air outlet, the second air outlet and the third air outlet are sequentially and correspondingly communicated along the axial direction of the pump body assembly to form a first air supplementing passage, and the first air supplementing passage is communicated with the middle cavity of the partition plate.
In some embodiments, the air-supplementing enthalpy-increasing port is configured on the primary cylinder, and the air-supplementing enthalpy-increasing port is communicated with the middle cavity of the partition plate through a first air-supplementing port configured on the lower partition plate, and the air-supplementing enthalpy-increasing port is communicated with the buffer cavity through a second air-supplementing port configured on the lower flange.
The invention also provides a two-stage enthalpy-increasing compressor, which comprises the pump body assembly.
The invention also provides an air conditioner comprising the two-stage enthalpy-increasing compressor.
According to the pump body assembly, the two-stage enthalpy-increasing compressor and the air conditioner, one part of pressure refrigerant formed after compression of the first-stage compression part directly enters the middle cavity of the partition plate through the first exhaust port, the other part of pressure refrigerant enters the gas compensation cavity through the second exhaust port and then enters the middle cavity of the partition plate, meanwhile, one part of medium-pressure refrigerant introduced by the air supplementing enthalpy-increasing port directly enters the middle cavity of the partition plate, and the other part of medium-pressure refrigerant enters the middle cavity of the partition plate through the gas compensation cavity, so that the two-stage compression part can absorb a larger amount of refrigerant, namely the purpose of increasing the refrigerant suction amount of the two-stage compression part is achieved through air supplementing of a multi-flow path, the refrigerating capacity of the corresponding compressor is improved, the heating efficiency and the heating speed of the corresponding compressor in extremely severe environments are improved, the heat loss in the heating process of the compressor is reduced, and the air conditioner is low-carbon and environment-friendly.
Drawings
FIG. 1 is a schematic view (longitudinal section) of the internal structure of a pump body assembly according to an embodiment of the present invention;
FIG. 2 is an exploded view (perspective view) of a pump body assembly according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of the lower flange in fig. 1.
The reference numerals are expressed as:
11. a first stage compression section; 111. a first-stage air suction port; 112. a first exhaust port; 113. a second exhaust port; 114. a first-stage cylinder; 1141. a second air outlet; 115. a primary roller; 12. a secondary compression unit; 121. a secondary air suction port; 122. a second-stage cylinder; 123. a secondary roller; 13. a baffle middle cavity; 14. a gas compensation chamber; 15. a buffer chamber; 16. an air supplementing and enthalpy increasing port; 21. a lower flange; 211. a partition wall; 212. a one-way valve; 213. a first air outlet; 214. a second air supply port; 22. a lower cover plate; 31. an upper partition plate; 32. a lower partition plate; 321. a third air outlet; 322. a first air supply port; 4. an upper flange; 51. and (3) a crankshaft.
Detailed Description
Referring to fig. 1 to 3, according to an embodiment of the present invention, a pump assembly is provided, which is applied to a dual-stage enthalpy-increasing compressor, and includes a crankshaft 51, a primary compression portion 11 and a secondary compression portion 12 for compressing a refrigerant driven by the crankshaft 51, a partition plate intermediate chamber 13 is disposed between the primary compression portion 11 and the secondary compression portion 12, the primary compression portion 11 has a primary air suction port 111 and a first air discharge port 112 and a second air discharge port 113 that are controllably opened and closed, wherein the primary air suction port 111 is used for communicating with a low-pressure refrigerant air flow of an air conditioning system, so as to suck the low-pressure refrigerant into the primary compression portion 11 for compression, the secondary compression portion 12 is sucked by the partition plate intermediate chamber 13, and further includes a gas compensation chamber 14 that is communicated with the partition plate intermediate chamber 13, a gas compensation enthalpy-increasing port 16 that is capable of simultaneously communicating with the partition plate intermediate chamber 13 and the gas compensation chamber 14, and an air flow discharged from the first air discharge port 112 is capable of entering the partition plate intermediate chamber 13 via the gas compensation chamber 14, and an air compensation-port 16 is capable of communicating with a medium-pressure refrigerant flow of the air conditioning system, such as a flash evaporator. In the technical scheme, a part of pressure refrigerant formed after the compression of the primary compression part 11 directly enters the middle cavity 13 of the partition plate through the first exhaust port 112, the other part of pressure refrigerant enters the middle cavity 13 of the partition plate after entering the gas compensation cavity 14 through the second exhaust port 113, meanwhile, a part of medium-pressure refrigerant introduced by the air supplementing enthalpy increasing port 16 directly enters the middle cavity 13 of the partition plate, and the other part of medium-pressure refrigerant enters the middle cavity 13 of the partition plate through the gas compensation cavity 14, so that the secondary compression part 12 can absorb a larger amount of refrigerant, namely, the purpose of increasing the refrigerant suction amount of the secondary compression part 12 is achieved through the air supplementing of a multi-flow path, the refrigerating capacity of the corresponding compressor is improved, the heating energy efficiency and the heating speed of the corresponding compressor in extremely severe environments are improved, the heat loss in the heating process of the compression mechanism is reduced, and the invention is low-carbon and environment-friendly.
Referring specifically to fig. 2, taking a pump body assembly applied to a roller compressor as an example, the primary compression portion 11 includes a primary cylinder 114 and a primary roller 115 therein, the secondary compression portion 12 includes a secondary cylinder 122 and a secondary roller 123 therein, and the primary roller 115 and the secondary roller 123 are respectively sleeved on an upper eccentric portion and a lower eccentric portion of the crankshaft 51 so as to compress refrigerant respectively located therein along with rotation of the crankshaft 51. It can be understood that the primary compression unit 11 of the present invention performs primary compression on the refrigerant sucked through the primary suction port 111, and the refrigerant discharged therefrom is sucked through the secondary suction port 121 of the secondary compression unit 12 in the intermediate partition chamber 13 and is secondarily compressed therein.
In a preferred embodiment, as shown in fig. 3, the pump body assembly further comprises a buffer chamber 15 in controllable communication with the gas compensation chamber 14, the air make-up enthalpy inlet 16 being in communication with the gas compensation chamber 14 via the buffer chamber 15; specifically, the side of the primary compression part 11 far away from the secondary compression part 12 is provided with a lower flange 21 and a lower cover plate 22 assembled at one end of the lower flange 21 far away from the primary compression part 11, a sealing space is formed between the lower flange 21 and the lower cover plate 22, a partition wall 211 is arranged in the sealing space, the sealing space is divided into a buffer cavity 15 and a gas compensation cavity 14 by the partition wall 211, a one-way valve 212 is arranged on the partition wall 211, and the one-way valve 212 only allows air flow to flow into the gas compensation cavity 14 from the buffer cavity 15. In the technical scheme, a part of the air-supplementing air flow (medium-pressure air flow) sucked by the air-supplementing enthalpy-increasing port 16 directly enters the baffle plate middle cavity 13 to realize air-supplementing enthalpy-increasing, the other part of the air-supplementing air flow is firstly introduced into the buffer cavity 15 and then further enters the air compensation cavity 14 after the pressure of the air-supplementing air flow is higher than the one-way opening pressure of the one-way valve 212, and then is further introduced into the baffle plate middle cavity 13 at a higher pressure, so that the movement of the air in the air compensation cavity 14 to the baffle plate middle cavity 13 can be accelerated while the pressure of air compensation is improved, and the movement of the air in the baffle plate middle cavity 13 to the secondary compression part 12 can be accelerated by the other part of the air-supplementing enthalpy-increasing port 16, and the air suction speed can be improved by increasing the air suction speed, so that the volume efficiency and the energy efficiency of the compressor can be effectively improved. In a specific embodiment, the air-supplementing enthalpy-increasing port 16 is configured on the first-stage cylinder 114, and the air-supplementing enthalpy-increasing port 16 is communicated with the middle chamber 13 of the partition plate through a first air-supplementing port 322 configured on the lower partition plate 32, and the air-supplementing enthalpy-increasing port 16 is communicated with the buffer chamber 15 through a second air-supplementing port 214 configured on the lower flange 21, so that no additional pipeline is needed, and the leakage of the refrigerant gas is reduced.
In order to ensure the relative tightness between the gas compensation chamber 14 and the buffer chamber 15, the wall thickness of the partition wall 211 is 3mm, so that the sealing fit area with the lower cover plate 22 is larger.
An upper partition plate 31 and a lower partition plate 32 are arranged between the first-stage compression part 11 and the second-stage compression part 12, the upper partition plate 31 and the lower partition plate 32 are mutually buckled to form a partition plate middle cavity 13, and the manufacturing process of the partition plate middle cavity 13 is simplified.
Referring to fig. 2, a first air outlet 213 is formed in a region of the lower flange 21 corresponding to the air compensation chamber 14, the first stage compression portion 11 includes a first stage cylinder 114, a second air outlet 1141 is formed on the first stage cylinder 114, a third air outlet 321 is formed on the lower partition plate 32, and the first air outlet 213, the second air outlet 1141 and the third air outlet 321 are sequentially and correspondingly communicated along an axial direction of the pump body assembly to form a first air supplementing passage, and the first air supplementing passage is communicated with the partition plate middle chamber 13, so that the structure is simple and compact.
The direction of airflow in the present invention is further described below in conjunction with fig. 1: after the refrigerant sucked by the first-stage suction port 111 is first compressed in the first-stage compression part 11, one part of the refrigerant directly enters the partition plate intermediate chamber 13 through the first exhaust port 112 (which is provided with exhaust valve control and is not described in detail), and the other part of the refrigerant enters the gas compensation chamber 14 through the second exhaust port 113 (which is provided with exhaust valve control) and enters the partition plate intermediate chamber 13 together through the first air supplementing passage; part of refrigerant sucked by the air supplementing and enthalpy increasing port 16 firstly enters the middle cavity 13 of the partition plate through the first air supplementing port 322, the other part of refrigerant enters the buffer cavity 15 through the second air supplementing port 214, and then further enters the gas compensating cavity 14 after reaching the opening pressure of the one-way valve 212, and further enters the middle cavity 13 of the partition plate together with part of exhaust gas of the primary compression part 11 in the middle cavity through the first air supplementing passage, and the converged air flow in the middle cavity 13 of the partition plate is sucked by the secondary compression part 12 and is subjected to secondary compression, so that compression loss is reduced, the purpose of compressing the air is achieved, and the refrigerating capacity of the compressor is improved.
According to an embodiment of the present invention, there is further provided a two-stage enthalpy-increasing compressor including the pump body assembly described above, and the two-stage enthalpy-increasing compressor is specifically a roller compressor as described above, and may also be a sliding vane compressor or a swing rotor compressor in some cases.
According to an embodiment of the present invention, there is also provided an air conditioner including the above-mentioned two-stage enthalpy-increasing compressor.
Those skilled in the art will readily appreciate that the advantageous features of the various aspects described above may be freely combined and stacked without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (9)
1. The utility model provides a pump body subassembly is applied to in the doublestage enthalpy-increasing compressor, its characterized in that includes one-level compression portion (11), two-level compression portion (12), one-level compression portion (11) with have baffle intermediate chamber (13) between two-level compression portion (12), one-level compression portion (11) have one-level induction port (111) and controllable first gas vent (112) and second gas vent (113) of break-make, two-level compression portion (12) by breathe in baffle intermediate chamber (13), still include with gas compensation chamber (14) of baffle intermediate chamber (13) intercommunication, with baffle intermediate chamber (13) and gas compensation chamber (14) can be simultaneously the air-supplementing enthalpy-increasing mouth (16) of intercommunication, first gas vent (112) exhaust air current can get into in baffle intermediate chamber (13), second gas vent (113) exhaust air current can be via gas compensation chamber (14) get into in baffle intermediate chamber (13).
2. Pump body assembly according to claim 1, further comprising a buffer chamber (15) in controllable communication with the gas compensation chamber (14), the air make-up enthalpy increasing port (16) being in communication with the gas compensation chamber (14) via the buffer chamber (15).
3. Pump body assembly according to claim 2, characterized in that one side of the primary compression part (11) far away from the secondary compression part (12) is provided with a lower flange (21) and a lower cover plate (22) assembled on one end of the lower flange (21) far away from the primary compression part (11), a sealed space is formed between the lower flange (21) and the lower cover plate (22), a partition wall (211) is arranged in the sealed space, the partition wall (211) divides the sealed space into the buffer cavity (15) and the gas compensation cavity (14), a one-way valve (212) is arranged on the partition wall (211), and the one-way valve (212) only allows air flow from the buffer cavity (15) to flow into the gas compensation cavity (14).
4. A pump body assembly according to claim 3, wherein the wall thickness of the dividing wall (211) is 3mm.
5. Pump body assembly according to any one of claims 1 to 4, characterized in that an upper partition (31) and a lower partition (32) are provided between the primary compression portion (11) and the secondary compression portion (12), the upper partition (31) and the lower partition (32) being mutually buckled to form the partition intermediate chamber (13).
6. The pump body assembly according to claim 5, wherein a first air outlet (213) is formed in a region of the lower flange (21) corresponding to the air compensation cavity (14), the primary compression part (11) comprises a primary air cylinder (114), a second air outlet (1141) is formed in the primary air cylinder (114), a third air outlet (321) is formed in the lower partition plate (32), and the first air outlet (213), the second air outlet (1141) and the third air outlet (321) are sequentially and correspondingly communicated along the axial direction of the pump body assembly to form a first air supplementing passage, and the first air supplementing passage is communicated with the partition plate middle cavity (13).
7. Pump body assembly according to claim 6, characterized in that the air-make-up enthalpy-increasing port (16) is configured on the primary cylinder (114), and the air-make-up enthalpy-increasing port (16) communicates with the diaphragm intermediate chamber (13) through a first air-make-up port (322) configured on the lower diaphragm (32), the air-make-up enthalpy-increasing port (16) communicating with the buffer chamber (15) through a second air-make-up port (214) configured on the lower flange (21).
8. A two-stage enthalpy-increasing compressor including the pump body assembly of any one of claims 1 to 7.
9. An air conditioner comprising the dual-stage enthalpy-increasing compressor of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211682422.2A CN116006470A (en) | 2022-12-26 | 2022-12-26 | Pump body assembly, double-stage enthalpy-increasing compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211682422.2A CN116006470A (en) | 2022-12-26 | 2022-12-26 | Pump body assembly, double-stage enthalpy-increasing compressor and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116006470A true CN116006470A (en) | 2023-04-25 |
Family
ID=86032930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211682422.2A Pending CN116006470A (en) | 2022-12-26 | 2022-12-26 | Pump body assembly, double-stage enthalpy-increasing compressor and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116006470A (en) |
-
2022
- 2022-12-26 CN CN202211682422.2A patent/CN116006470A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017219669A1 (en) | Pump assembly and compressor comprising same | |
| CN101294568A (en) | Rotary compressor with air injection enthalpy-increasing function | |
| CN113883054A (en) | Pump body subassembly, variable volume compressor and air conditioning system | |
| CN202900660U (en) | Dual-rotor two-stage enthalpy increasing compressor, air conditioner and heat pump water heater | |
| CN109058107B (en) | Sealed rotary compressor and control method thereof | |
| CN116006470A (en) | Pump body assembly, double-stage enthalpy-increasing compressor and air conditioner | |
| CN110863987B (en) | Compressor and refrigeration equipment | |
| CN103557157A (en) | Variable-capacity compressor and air-conditioning system | |
| CN111677665A (en) | Compressor and air conditioning device with same | |
| CN107228070A (en) | Compressor and the refrigeration system with it | |
| CN209976794U (en) | Air supplementing valve of scroll compressor and scroll compressor | |
| CN210033831U (en) | Pump body subassembly and compressor | |
| CN219452355U (en) | Compressor and refrigerator | |
| CN112128111A (en) | Pump body structure, compressor and air conditioning system | |
| CN206972526U (en) | Compressor and there is its refrigeration system | |
| CN221033119U (en) | Pump body assembly, compressor and refrigeration equipment | |
| CN221033116U (en) | Compressor and refrigeration equipment | |
| CN221033115U (en) | Compressor and refrigeration equipment | |
| CN212838346U (en) | Compressor and air conditioning device with same | |
| CN216278509U (en) | Compressor and air conditioner with same | |
| CN213574616U (en) | Pump body structure, compressor and air conditioning system | |
| CN221003126U (en) | Pump body assembly for compressor, compressor and refrigerating system | |
| CN221033114U (en) | Compressor and refrigeration equipment | |
| CN220769715U (en) | Compressor and air conditioning system | |
| CN210423017U (en) | Compressor and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |