CN209925204U - Compressor and air conditioning system - Google Patents
Compressor and air conditioning system Download PDFInfo
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- CN209925204U CN209925204U CN201920840641.6U CN201920840641U CN209925204U CN 209925204 U CN209925204 U CN 209925204U CN 201920840641 U CN201920840641 U CN 201920840641U CN 209925204 U CN209925204 U CN 209925204U
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Abstract
The application provides a compressor and an air conditioning system. The compressor comprises a double-stage cylinder and a parallel cylinder which is coaxial with the double-stage cylinder, wherein a first refrigerant inlet is formed in the double-stage cylinder, and a second refrigerant inlet is formed in the parallel cylinder. The two-stage cylinder and the parallel cylinder are arranged relatively independently, the parallel cylinder is communicated with the two-stage cylinder through a switchable air supplementing channel, and the switchable air supplementing channel is used for supplementing air to the two-stage cylinder. Use the technical scheme of the utility model, through foretell structural design, under low performance operational mode, can satisfy the requirement of air conditioning system low temperature low frequency operation, effectively reduce the loss power consumption of compression work when promoting the compressor efficiency, effectively solve efficiency low problem under the refrigerating system low-load operation, also can effectively solve vibration scheduling problem.
Description
Technical Field
The utility model relates to a refrigeration plant technical field particularly, relates to a compressor and air conditioning system.
Background
The structure can be understood as that a double-cylinder structure is connected with an independent cylinder which can be opened and closed in series, double cylinders and double stages of the structure are cylinders with equal size, and the three-cylinder structure is similar to a conventional double-cylinder double-stage compressor and also has an enthalpy increasing function. The enthalpy-increasing function principle is explained as follows: the air supplementing port is formed through the partition plate or the flange, and the air supplementing and enthalpy increasing effects are achieved by mixing air into the air cylinder. The lower cylinder is a variable-volume cylinder with a smaller volume, and the variable-volume cylinder can be started and stopped by adjusting the pressure at the variable-volume control port of the variable-volume cylinder, so that the function of completing the compressor by switching the double cylinders and the three cylinders is realized.
Because the compressor of this structure can't realize the function of single cylinder, when low temperature low frequency operation, because its low-load performance advantage is not big, lead to the compressor with high costs, and have very serious vibration problem, can lead to the middle refrigeration not high enough in addition, heating performance is relatively poor, causes air conditioning system can't satisfy the heating demand in the district with north in the Yangtze river basin, has serious hidden danger to its efficiency and after-sales experience.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a compressor and air conditioning system to solve the technical problem that can't satisfy the low temperature low frequency operation requirement that the compressor exists among the prior art.
The application embodiment provides a compressor, including doublestage cylinder and the parallel cylinder with the coaxial setting of doublestage cylinder, be provided with first refrigerant import on the doublestage cylinder, be provided with the second refrigerant import on the parallel cylinder, doublestage cylinder and parallel cylinder relatively independent setting, but parallel cylinder is linked together with doublestage cylinder through switch tonifying qi passageway, but switch tonifying qi passageway is used for the doublestage cylinder tonifying qi.
In one embodiment, the double-stage cylinder is further provided with an air supplement port, and the air supplement port is used for supplementing air to the double-stage cylinder.
In one embodiment, the make-up air port is adapted to communicate with the make-up air dispenser.
In one embodiment, an air supply switch valve is arranged on the air supply port or the air supply liquid separator.
In one embodiment, the first refrigerant inlet is configured to communicate with the first gas-liquid separator, and the second refrigerant inlet is configured to communicate with the second gas-liquid separator.
In one embodiment, a first switch valve is disposed on the first refrigerant inlet or the first gas-liquid separator, and a second switch valve is disposed on the second refrigerant inlet or the second gas-liquid separator.
In one embodiment, a lift valve is disposed within the switchable gas replenishment passage.
In one embodiment, the volume ratio of the parallel cylinder to the first cylinder of the dual-stage cylinder is 0.4-0.8, and the volume ratio of the second cylinder of the dual-stage cylinder to the first cylinder of the dual-stage cylinder is 5: 1.
in one embodiment, the optimal volume ratio of the volume of the first-stage cylinder of the two-stage cylinder to the volume of the second-stage cylinder of the two-stage cylinder plus the volume of the parallel cylinder is 0.125-0.625.
In one embodiment, the parallel cylinder is disposed below the dual stage cylinder.
The application also provides an air conditioning system which comprises a compressor, wherein the compressor is the compressor.
In one embodiment, the air conditioning system further comprises: the first gas-liquid separator is communicated with the first refrigerant inlet through a first pipeline; and the second gas-liquid separator is communicated with the second refrigerant inlet through a second pipeline.
In one embodiment, still be provided with the tonifying qi mouth on the doublestage cylinder, the tonifying qi mouth is used for tonifying qi to the doublestage cylinder, and air conditioning system still includes: and the air supply liquid separator is communicated with the air supply port through a third pipeline.
In one embodiment, the air conditioning system further comprises a flash evaporator connected to the make-up gas dispenser via a fourth line.
In one embodiment, an air conditioning system includes a low performance operating mode, a neutral performance operating mode, and a high performance operating mode; the low performance operating mode is: a refrigerant is supplied through a second refrigerant inlet, and the parallel cylinder operates independently; the middle performance operation mode is as follows: a refrigerant is supplied through a first refrigerant inlet, and the two-stage cylinder operates independently; the high performance operating modes are: the air supply device is characterized in that refrigerants are supplied through a first refrigerant inlet and a second refrigerant inlet respectively, the two-stage air cylinder and the parallel air cylinder run simultaneously, and the parallel air cylinder supplies air to the two-stage air cylinder through an openable air supply channel.
In the embodiment, through the structural design, the requirement of low-temperature and low-frequency operation of the air conditioning system can be met in a low-performance operation mode, the energy efficiency of the compressor is improved, the loss and energy consumption of compression work are effectively reduced, the problem of low energy efficiency in low-load operation of the refrigeration system is effectively solved, and the problems of vibration and the like can also be effectively solved. In addition, through a high-performance requirement mode, the energy efficiency of the compressor can be improved by about 10%, the energy efficiency of the compressor and the intermediate refrigeration of an air-conditioning refrigeration system can be obviously improved, the low-load performance of the air conditioner is improved, and the heating performance of the air conditioner is obviously improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of an inner cylinder of an embodiment of a compressor according to the present invention;
fig. 2 is a schematic structural view of an embodiment of an air conditioning system according to the present invention;
fig. 3 is a schematic enthalpy-increasing pressure enthalpy diagram of the compressor of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Fig. 1 and fig. 2 show an embodiment of the compressor of the present invention, which includes a two-stage cylinder 10 and a parallel cylinder 20 coaxially disposed with the two-stage cylinder 10, wherein the two-stage cylinder 10 is provided with a first refrigerant inlet, and the parallel cylinder 20 is provided with a second refrigerant inlet. The two-stage cylinder 10 and the parallel cylinder 20 are relatively independently arranged, the parallel cylinder 20 is communicated with the two-stage cylinder 10 through a switchable air supplement channel, and the switchable air supplement channel is used for supplementing air to the two-stage cylinder 10.
Use the technical scheme of the utility model, when low performance operational mode: when the air-conditioning refrigeration system starts to operate, only the refrigerant is introduced into the parallel cylinder 20 through the second refrigerant inlet, the switchable air supplement channel is closed, at the moment, the two-stage cylinder 10 does not suck air and does not work, and only the parallel cylinder 20 moves to complete compression in a single-cylinder mode, so that the performance requirement under the low-frequency and low-load condition is met;
in the neutral performance demand mode: when the air-conditioning refrigeration system starts to operate, only a refrigerant is introduced into the two-stage cylinder 10 through the first refrigerant inlet, the switchable air supplement channel is closed, at the moment, the parallel cylinder 20 does not work due to no air suction, the two-stage cylinder 10 starts to compress when air suction is performed, and two-stage enthalpy increase with medium performance is completed, so that the performance requirement under a general environment is met;
in the high performance demand mode: let in the refrigerant to doublestage cylinder 10 and parallel cylinder 20 simultaneously, open switch tonifying qi passageway, at this moment, doublestage cylinder 10 and parallel cylinder 20 begin to move together, but parallel cylinder 20 is through switch tonifying qi passageway to doublestage cylinder 10 tonifying qi, the doublestage enthalpy that can reach this moment increases the heating performance for the optimum, and work as parallel cylinder 20, but parallel cylinder 20 combustion gas can enter into doublestage cylinder 10 through switch tonifying qi passageway and carry out the tonifying qi, multi-cylinder many tonifying qi structure has been realized, the gas compression volume of tonifying qi structure is improved, thereby improve the refrigeration capacity, reach the purpose that promotes the efficiency of compressor.
Therefore, the technical scheme of the utility model, through foretell structural design, under low performance operational mode, can satisfy the requirement of air conditioning system low temperature low frequency operation, effectively reduce the loss power consumption of compression work when promoting the compressor efficiency, effectively solve the low problem of efficiency under the operation of refrigerating system low-load, also can effectively solve vibration scheduling problem. In addition, through a high-performance requirement mode, the energy efficiency of the compressor can be improved by about 10%, the energy efficiency of the compressor and the intermediate refrigeration of an air-conditioning refrigeration system can be obviously improved, the low-load performance of the air conditioner is improved, and the heating performance of the air conditioner is obviously improved.
Optionally, in the technical scheme of this embodiment, be provided with the lift valve in the switch tonifying qi passageway. The lifting valve is lifted according to the running condition of the parallel cylinder 20, and falls down to block the switchable air supplementing channel when no air exists, so that air leakage is avoided; when gas exists, the lifting valve is opened, the gas channel is communicated, and the compressed gas of the parallel cylinder 20 enters the double-stage cylinder 10. It should be noted that, it can be determined whether the switchable air-replenishing channel is communicated with the low-pressure cavity of the two-stage cylinder 10 or the high-pressure cavity of the two-stage cylinder according to the requirement of the actual low-temperature environment, but in any case, the two-stage cylinder 10 is required to be additionally replenished while the original intermediate mixing cavity is replenished with air. Alternatively, the switchable gas supply passages are optimized for roller sealing, but the gas supply scheme can also be adjusted according to the process conditions, such as vent design.
Preferably, in the technical solution of this embodiment, the dual-stage cylinder 10 is further provided with an air supplement port, and the air supplement port is used for supplementing air to the dual-stage cylinder 10. The double-stage cylinder 10 is supplied with air through the air supply port, so that enthalpy can be increased, and the heating performance of the compressor is improved. Optionally, the make-up air port is adapted to communicate with the make-up air dispenser 50. In the technical solution of this embodiment, as shown in fig. 2, an air make-up switch valve 71 is disposed on the air make-up dispenser, and whether to make up air for the two-stage cylinder 10 can be selected by controlling the air make-up switch valve 71. As another alternative, an air supply switch valve 71 may be provided on the air supply port.
As shown in fig. 2, preferably, the first refrigerant inlet is communicated with the first gas-liquid separator 30, and the second refrigerant inlet is communicated with the second gas-liquid separator 40. As an alternative embodiment, the first gas-liquid separator 30 is provided with a first on-off valve 72, and the second gas-liquid separator 40 is provided with a second on-off valve 73. As another alternative embodiment, the first refrigerant inlet is provided with a first on-off valve 72, and the second refrigerant inlet is provided with a second on-off valve 73. When the dual-stage air cylinder is used, the first switch valve 72 is operated, so that whether the refrigerant is supplied to the dual-stage air cylinder 10 or not can be selected, and whether the dual-stage air cylinder 10 works or not can be determined; by operating the second switching valve 73, whether the parallel cylinder 20 is supplied with the refrigerant or not can be selected, and whether the parallel cylinder 20 is operated or not can be determined.
Optionally, the air make-up switch valve 71, the first switch valve 72 and the second switch valve 73 are all solenoid valves.
In a preferred embodiment, in the solution of the present embodiment, the volume ratio of the parallel cylinder 20 to the first-stage cylinder 11 of the dual-stage cylinder is 0.4 to 0.8, and the volume ratio of the second-stage cylinder 12 of the dual-stage cylinder to the first-stage cylinder 11 of the dual-stage cylinder is 5: 1. more preferably, the optimal volume ratio of the volume of the first-stage cylinder 11 of the two-stage cylinder to the volume of the second-stage cylinder 12 of the two-stage cylinder plus the volume of the parallel cylinder 20 is 0.125 to 0.625. In the technical scheme of the embodiment, because the first-stage cylinder 11 of the two-stage cylinder, the second-stage cylinder 12 of the two-stage cylinder and the parallel cylinder 20 are designed according to the optimal volume ratio, the heating performance which can be achieved by the two-stage enthalpy increase at the moment is optimal, and when the parallel cylinder 20 starts to work, gas exhausted by the parallel cylinder 20 enters the two-stage cylinder 10 through the switchable gas supplementing channel to supplement gas, so that a multi-cylinder multi-gas supplementing structure is realized, the gas compression amount of the gas supplementing structure is improved, the refrigerating capacity is improved, and the purpose of improving the energy efficiency of the compressor is achieved; when the volume ratio of the parallel cylinder 20 to the two stages is 0.125-0.625, the multi-air-supply scheme which can be achieved by the parallel cylinder is optimal, and as shown in fig. 3, the volume ratio of the three cylinders can achieve optimal energy efficiency within the range, so that the heating performance at-15 ℃ reaches 100%, the APF can be improved by more than 15%, and the heating performance is remarkably improved.
In the solution of the present embodiment, the parallel cylinder 20 is disposed below the two-stage cylinder 10. It should be noted that, since the dual-stage cylinder 10 and the parallel cylinder 20 are arranged independently, the up-down positional relationship of the parallel cylinder 20 with respect to the dual-stage cylinder 10 is not unique, and as an alternative embodiment, the parallel cylinder 20 may also be arranged above the dual-stage cylinder 10. It should be noted that the dual stage cylinder 10 and the parallel cylinder 20 may be separated from each other by a partition plate due to their relative independence.
As shown in fig. 2, the present invention further provides an air conditioning system, which includes the above compressor. By adopting the compressor, the requirement of low-temperature and low-frequency operation of an air conditioning system can be met in a low-performance operation mode, the energy efficiency is improved, the loss and energy consumption of compression work are effectively reduced, and the problems of vibration and the like can be effectively solved. In addition, through a high-performance requirement mode, the energy efficiency can be improved by about 10%, the intermediate refrigeration of an air conditioner refrigeration system and the like can be obviously improved, the low-load performance of the air conditioner is improved, and the heating performance of the air conditioner is obviously improved.
As shown in fig. 2, the air conditioning system further includes a first gas-liquid separator 30 and a second gas-liquid separator 40, wherein the first gas-liquid separator 30 is communicated with the first refrigerant inlet through a first pipeline; the second gas-liquid separator 40 is communicated with the second refrigerant inlet through a second pipeline. The first gas-liquid separator 30 is a main gas-liquid separator of the air conditioning system, and the second gas-liquid separator 40 is a parallel mini-separator.
As shown in fig. 2, preferably, the dual-stage cylinder 10 is further provided with an air supplement port for supplementing air to the dual-stage cylinder 10, and the air conditioning system further includes an air supplement dispenser 50, wherein the air supplement dispenser 50 is communicated with the air supplement port through a third pipeline. As shown in fig. 2, the air conditioning system of the present invention includes, in addition to the above-mentioned components, conventional components such as a four-way valve 61, a condenser 62, an evaporator 63, a first throttling device 64, a second throttling device 65, and a flash evaporator 66. More preferably, in the solution of the present embodiment, the flash evaporator 66 is connected to the make-up gas knockout 50 through a fourth pipeline. The medium-pressure gas is output to the double-stage cylinder 10 through the gas supplementing liquid distributor 50 through the flash evaporator 66 to achieve the gas supplementing and enthalpy increasing effects, and the heating performance under the low-temperature working condition, namely in the cold region, is effectively realized.
The air conditioning system of the utility model comprises a low-performance operation mode, a neutral-performance operation mode and a high-performance operation mode;
the low performance operating mode is: the refrigerant is supplied through the second refrigerant inlet, and the parallel cylinder 20 operates alone;
the middle performance operation mode is as follows: the refrigerant is supplied through the first refrigerant inlet, and the two-stage cylinder 10 operates independently;
the high performance operating modes are: the refrigerant is supplied through the first refrigerant inlet and the second refrigerant inlet, the two-stage cylinder 10 and the parallel cylinder 20 operate simultaneously, and the parallel cylinder 20 supplements air to the two-stage cylinder 10 through the switchable air supplement passage.
Through the operation of the three different modes, the requirement of low-temperature and low-frequency operation of the air conditioning system can be met in the low-performance operation mode, the loss energy consumption of compression work is effectively reduced while the energy efficiency of the compressor is improved, the problem of low energy efficiency in low-load operation of the refrigeration system is effectively solved, and the problems of vibration and the like can also be effectively solved. Through a high-performance requirement mode, the energy efficiency of the compressor can be improved by about 10%, the energy efficiency of the compressor and the intermediate refrigeration of an air conditioner refrigeration system can be obviously improved, the low-load performance of the air conditioner is improved, and the heating performance of the air conditioner is obviously improved.
Therefore, the technical scheme of the utility model, can realize the demand of the different refrigeration capacities of refrigerating system, also can deal with various operating modes simultaneously. In addition, the optimal volume ratio of the compressor can be achieved through the structural volume ratio of the compressor, the optimal performance is achieved, and due to the fact that the scheme is a combined pump body of the double-stage cylinder 10 and the parallel cylinder 20 which is independently compressed, the control mode of the combined pump body is different from that of a conventional air-supply enthalpy-increasing structure, a gas channel with a lifting valve is designed in the parallel cylinder 20, gas compressed by the parallel cylinder 20 is not directly discharged out of a shell, but enters the double-stage cylinder 10 for air supply, the air supply amount is additionally increased, and the heating performance is effectively improved. Furthermore, the technical scheme of the utility model owing to adjusted the size of cylinder body for the vibration of compressor can show the reduction, has avoided large-scale compressor because the big problem of vibration that its inertia arouses. And simultaneously, the utility model discloses pump body structure is different from conventional three jar structures, can reduce the cost of compressor. And the utility model discloses the scheme theoretical calculation, the utility model discloses parallel compression structure can be so that the efficiency of compressor promotes about 10%, can show the efficiency that promotes the compressor and air conditioner refrigerating system's APF etc. improves the air conditioner low-load performance, is showing the performance of heating that promotes the air conditioner.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. The utility model provides a compressor, its characterized in that, including doublestage cylinder (10) and with parallel cylinder (20) of the coaxial setting of doublestage cylinder (10), be provided with first refrigerant import on doublestage cylinder (10), be provided with the second refrigerant import on parallel cylinder (20), doublestage cylinder (10) with parallel cylinder (20) relatively independent setting, parallel cylinder (20) through but switch tonifying qi passageway with doublestage cylinder (10) are linked together, but switch tonifying qi passageway is used for right doublestage cylinder (10) tonifying qi.
2. The compressor of claim 1, wherein the dual-stage cylinder (10) is further provided with an air supplement port for supplementing air to the dual-stage cylinder (10).
3. Compressor according to claim 2, characterized in that the make-up gas port is adapted to communicate with a make-up gas dispenser (50).
4. Compressor according to claim 3, characterized in that an air make-up on-off valve (71) is provided on the air make-up port or on the air make-up liquid separator (50).
5. The compressor of claim 1, wherein the first refrigerant inlet is adapted to communicate with a first gas-liquid separator (30), and the second refrigerant inlet is adapted to communicate with a second gas-liquid separator (40).
6. The compressor according to claim 5, wherein a first on-off valve (72) is disposed on the first refrigerant inlet or the first gas-liquid separator (30), and a second on-off valve (73) is disposed on the second refrigerant inlet or the second gas-liquid separator (40).
7. The compressor of claim 1, wherein a lift valve is disposed in the switchable gas makeup passage.
8. Compressor according to claim 1, characterized in that the volume ratio of the parallel cylinder (20) to the first cylinder (11) of the dual cylinder is 0.4-0.8, the volume ratio of the second cylinder (12) of the dual cylinder to the first cylinder (11) of the dual cylinder is 5: 1.
9. the compressor of claim 1, wherein the optimal volume ratio of the volume of the first-stage cylinder (11) of the two-stage cylinder to the volume of the second-stage cylinder (12) of the two-stage cylinder plus the volume of the parallel cylinder (20) is 0.125-0.625.
10. An air conditioning system comprising a compressor, characterized in that the compressor is a compressor according to any one of claims 1 to 9.
11. The air conditioning system of claim 10, further comprising:
the first gas-liquid separator (30) is communicated with the first refrigerant inlet through a first pipeline;
and the second gas-liquid separator (40) is communicated with the second refrigerant inlet through a second pipeline.
12. The air conditioning system as claimed in claim 10, wherein the dual-stage cylinder (10) is further provided with an air supplement port for supplementing air to the dual-stage cylinder (10), the air conditioning system further comprising:
and the air supply liquid separator (50) is communicated with the air supply port through a third pipeline.
13. Air conditioning system according to claim 12, further comprising a flash evaporator (66), wherein the flash evaporator (66) is connected to the make-up air dispenser (50) via a fourth line.
14. The air conditioning system of claim 10, wherein the air conditioning system includes a low performance mode of operation, a neutral performance mode of operation, and a high performance mode of operation;
the low performance operating mode is as follows: -supplying a refrigerant through the second refrigerant inlet, the parallel cylinders (20) operating independently;
the middle performance operation mode is as follows: the refrigerant is supplied through the first refrigerant inlet, and the two-stage cylinder (10) operates independently;
the high-performance operation mode is as follows: the refrigerant is supplied through the first refrigerant inlet and the second refrigerant inlet respectively, the two-stage cylinder (10) and the parallel cylinder (20) operate simultaneously, and the parallel cylinder (20) supplements air to the two-stage cylinder (10) through the switchable air supplementing channel.
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| CN201920840641.6U CN209925204U (en) | 2019-06-03 | 2019-06-03 | Compressor and air conditioning system |
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| CN201920840641.6U CN209925204U (en) | 2019-06-03 | 2019-06-03 | Compressor and air conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131167A (en) * | 2019-06-03 | 2019-08-16 | 珠海凌达压缩机有限公司 | Compressor and air-conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131167A (en) * | 2019-06-03 | 2019-08-16 | 珠海凌达压缩机有限公司 | Compressor and air-conditioning system |
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