CN210292433U - High-power single-machine two-stage vortex type ultralow-temperature air source heat pump - Google Patents
High-power single-machine two-stage vortex type ultralow-temperature air source heat pump Download PDFInfo
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- CN210292433U CN210292433U CN201921142088.5U CN201921142088U CN210292433U CN 210292433 U CN210292433 U CN 210292433U CN 201921142088 U CN201921142088 U CN 201921142088U CN 210292433 U CN210292433 U CN 210292433U
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Abstract
The utility model discloses a high-power unit doublestage vortex formula ultra-low temperature air source heat pump, including heat exchanger, subcooler, first solenoid valve, second solenoid valve, first check valve, first electronic expansion valve, second electronic expansion valve, economic ware, drier-filter, reservoir, second check valve, third solenoid valve, four-way reversing valve, shell and tube heat exchanger, second electronic expansion valve, unit doublestage scroll compressor, vapour and liquid separator, third check valve, oil separator, first shut-off valve, fourth solenoid valve, oil cleaner, second shut-off valve. The high-power single-machine two-stage scroll compressor has the advantages of large single-machine power, small occupied area, simple control, strong reliability, low noise, easy noise reduction treatment, high economy and the like when being applied to the air source heat pump; can stably heat at the ambient temperature of minus 35 ℃ and solve the problem that the air source heat pump of the air-supplying enthalpy-increasing type scroll compressor can not produce high-temperature hot water at low temperature.
Description
Technical Field
The utility model relates to an air source heat pump technical field, concretely relates to wide ultra-low temperature air source heat pump of operating range of high-power unit doublestage scroll compressor.
Background
The air source heat pump products on the market at present mainly comprise a screw type and a vortex type according to the classification of compressors, wherein the screw type comprises a single-machine single-stage screw type and a single-machine double-stage screw type, and the vortex type comprises a single-machine liquid spraying vortex type and a single-machine air supplementing enthalpy increasing vortex type.
When the air source heat pump is used in cold areas in winter, high-temperature hot water needs to be prepared, the span of high pressure and low pressure of the system is large, the high-efficiency stable operation of a common single-stage compressor is difficult to guarantee, and the existing air source heat pump for low-temperature heating mainly has a vortex type air-supply enthalpy-increasing type and a screw type single-machine two-stage type.
The vortex type air-supplying and enthalpy-increasing type adds air supply to a compression cavity of the single-stage compressor, has the phenomena of insufficient air supply amount and serious heating attenuation when operating under the low-temperature working condition, and restricts the single power of the air source heat pump because the single power of the existing vortex compressor is too small, so that the heat pump unit occupies a larger area on the actual engineering project.
The screw type single-machine two-stage type is a single-machine compressor two-stage compression, the high-low two stages share the pressure ratio of the whole heat pump system, the applicability is better than that of a vortex type air-supply enthalpy-increasing type, but the overall control difficulty of the heat pump and the compressor is higher, and the stability of the heat pump system is not high; and the compressor noise is great, and the cost is great for solving the noise problem of compressor in the actual project application, and whole economic nature is not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-power single-machine two-stage vortex type ultralow temperature air source heat pump, which solves the problem of the running noise of the air source heat pump by utilizing the advantages that the noise of a vortex compressor is lower than that of a screw compressor and the noise reduction cost is low;
the single two-stage scroll compressor shares a high-low pressure ratio in two-stage compression, has large air supplement amount and high complete machine energy efficiency, and solves various defects of the air supplement enthalpy-increasing scroll compressor;
the problem of single scroll compressor undersize is solved, and the single 60 HP's unit doublestage scroll compressor is used, effectively solves the too big problem of vortex air source heat pump occupation of land.
In order to achieve the above object, the present invention provides the following technical solutions:
a high-power single-machine two-stage vortex type ultralow-temperature air source heat pump comprises:
the exhaust port of the single-machine two-stage scroll compressor is divided into two branches, one branch is connected with the oil separator, and the other branch is connected with the third electromagnetic valve;
the oil separator is communicated with a four-way reversing valve which is communicated with the shell-and-tube heat exchanger;
the shell-and-tube heat exchanger is divided into two branches, one branch is connected with a second one-way valve, and the second one-way valve is communicated with the liquid reservoir after being converged with the first one-way valve; the other branch is connected with a second electronic expansion valve;
the liquid storage device is communicated with the drying filter, and the drying filter is communicated with the economizer;
the economizer is divided into two branches, one branch is connected with the second electronic expansion valve, and the other branch is divided into two branches which are respectively connected with the first electromagnetic valve and the second electromagnetic valve;
the second electronic expansion valve is communicated with the economizer which is communicated with the third one-way valve; the third one-way valve is communicated with the single-machine two-stage scroll compressor;
the first electromagnetic valve is communicated with the subcooler;
the subcooler is converged with the second electromagnetic valve and then divided into two branches which are respectively connected with the first electronic expansion valve and the second electronic expansion valve;
the first electronic expansion valve is divided into two branches, one branch is communicated with the heat exchanger, and the other branch is connected with the first one-way valve;
the heat exchanger is communicated with the four-way reversing valve; the four-way reversing valve is communicated with the gas-liquid separator;
the gas-liquid separator is divided into two branches, one branch is communicated with the single-machine two-stage scroll compressor after being converged with the first shutoff valve, and the other branch is communicated with the third electromagnetic valve;
the oil separator is communicated with the second shutoff valve, the second shutoff valve is communicated with the oil filter, the oil filter is communicated with the fourth electromagnetic valve, and the fourth electromagnetic valve is communicated with the first shutoff valve.
Preferably, an axial flow fan for forced convection is arranged above the heat exchanger.
Preferably, the heat exchanger is a fin heat exchanger.
Preferably, the subcooler is a finned subcooler.
Preferably, the single two-stage scroll compressor is a 60HP single two-stage scroll compressor.
The utility model provides a high-power unit doublestage vortex formula ultra-low temperature air source heat pump, its beneficial effect lies in:
1. the application of the high-power single-machine two-stage scroll compressor in the air source heat pump has the advantages of large single-machine power, small occupied area and the like;
2. the air source heat pump can stably heat at the ambient temperature of-35 ℃, and solves the problem that the air source heat pump of the air-supplying enthalpy-increasing type scroll compressor can not prepare high-temperature hot water at the low-temperature environment;
3. the single-machine two-stage scroll compressor is simple to control and high in reliability;
4. the scroll compressor has the advantages of low noise, easy noise reduction and high economy.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic diagram of a high-power single-machine dual-stage scroll-type ultralow-temperature air source heat pump provided by an embodiment of the present invention.
Description of reference numerals:
1. an axial flow fan; 2. a heat exchanger; 3. a subcooler; 4. a first solenoid valve; 5. a second solenoid valve; 6. a first check valve; 7. a first electronic expansion valve; 8. a second electronic expansion valve; 9. an economizer; 10. drying the filter; 11. a reservoir; 12. a second one-way valve; 13. a third electromagnetic valve; 14. a four-way reversing valve; 15. a shell and tube heat exchanger; 16. a second electronic expansion valve; 17. a single-machine two-stage scroll compressor; 18. a gas-liquid separator; 19. a third check valve; 20. an oil separator; 21. a first shut-off valve; 22. a fourth solenoid valve; 23. an oil filter; 24. a second shutoff valve.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.
As shown in fig. 1, the high-power single-machine two-stage scroll-type ultralow-temperature air source heat pump comprises a heat exchanger 2, a subcooler 3, a first electromagnetic valve 4, a second electromagnetic valve 5, a first one-way valve 6, a first electronic expansion valve 7, a second electronic expansion valve 8, an economizer 9, a drying filter 10, a liquid reservoir 11, a second one-way valve 12, a third electromagnetic valve 13, a four-way reversing valve 14, a shell-and-tube heat exchanger 15, a second electronic expansion valve 16, a single-machine two-stage scroll compressor 17, a gas-liquid separator 18, a third one-way valve 19, an oil separator 20, a first shut-off valve 21, a fourth electromagnetic valve 22, an oil filter 23 and a second shut-off valve 24.
The connection relationship of the above devices is as follows:
the exhaust port of the single-machine two-stage scroll compressor 17 is divided into two branches, one branch is connected with the oil separator 20, and the other branch is connected with the third electromagnetic valve 13;
the oil separator 20 is communicated with the four-way reversing valve 14, and the four-way reversing valve 14 is communicated with the shell and tube heat exchanger 15;
the shell-and-tube heat exchanger 15 is divided into two branches, one branch is connected to the second one-way valve 12, and the second one-way valve 12 is communicated with the liquid reservoir 11 after being converged with the first one-way valve 6; the other branch is connected with a second electronic expansion valve 8;
the liquid storage device 11 is communicated with a dry filter 10, and the dry filter 10 is communicated with the economizer 9;
the economizer 9 is divided into two branches, one branch is connected to the second electronic expansion valve 16, and the other branch is divided into two branches which are respectively connected to the first electromagnetic valve 4 and the second electromagnetic valve 5;
the second electronic expansion valve 16 is communicated with the economizer 9, and the economizer 9 is communicated with the third one-way valve 19; the third one-way valve 19 is communicated with the single-machine two-stage scroll compressor 17;
the first electromagnetic valve 4 is communicated with the subcooler 3;
the subcooler 3 is converged with the second electromagnetic valve 5 and then is divided into two branches which are respectively connected with a first electronic expansion valve 7 and a second electronic expansion valve 8;
the first electronic expansion valve 7 is divided into two branches, one branch is communicated with the heat exchanger 2, and the other branch is connected with the first one-way valve 6;
the heat exchanger 2 is communicated with a four-way reversing valve 14; the four-way reversing valve 14 is communicated with a gas-liquid separator 18;
the gas-liquid separator 18 is divided into two branches, one branch is communicated with the single-machine two-stage scroll compressor 17 after being converged with the first shut-off valve 21, and the other branch is communicated with the third electromagnetic valve 13;
the oil separator 20 communicates with the second shut-off valve 24, the second shut-off valve 24 communicates with the oil filter 23, the oil filter 23 communicates with the fourth electromagnetic valve 22, and the fourth electromagnetic valve 22 communicates with the first shut-off valve 21.
And an axial flow fan 1 for forced convection is arranged above the heat exchanger 2.
The heat exchanger 2 preferably adopts a fin heat exchanger, and the fin heat exchanger has a remarkable heat transfer enhancement effect. The subcooler 3 is preferably a finned subcooler which has the characteristics of high heat transfer efficiency, small volume and light weight.
The single two-stage scroll compressor 17 is a 60HP single two-stage scroll compressor.
The specific connection relationship of the ports among the devices in the high-power single-machine two-stage vortex ultralow-temperature air source heat pump is as follows:
the exhaust port of the single-machine two-stage scroll compressor 17 is divided into two branches, one branch is connected to the air inlet of the oil separator 20, and the other branch is connected to the inlet of the third electromagnetic valve 13.
An air outlet of the oil separator 20 is connected to a D port of the four-way reversing valve 14; the port E of the four-way reversing valve 14 is connected to the port a of the shell-and-tube heat exchanger 15.
The port b of the shell-and-tube heat exchanger 15 is divided into two branches, one branch is connected to the inlet of the second one-way valve 12, and the outlet of the second one-way valve 12 is merged with the outlet of the first one-way valve 6 and then connected to the inlet of the liquid reservoir 11; the other branch is connected to the outlet of the second electronic expansion valve 8.
An outlet of the reservoir 11 is connected to an inlet of the filter-drier 10.
The outlet of the filter-drier 10 is connected to the port a of the economizer 9.
The port b of the economizer 9 is divided into two branches, one branch is connected to the inlet of the second electronic expansion valve 16, and the other branch is divided into two branches which are respectively connected to the inlets of the first electromagnetic valve 4 and the second electromagnetic valve 5.
The outlet of the second electronic expansion valve 16 is connected to the port c of the economizer 9; the d port of the economizer 9 is connected to the inlet of a third check valve 19.
The outlet of the third one-way valve 19 is connected to the economizer port of the single-machine two-stage scroll compressor 17; the outlet of the first electromagnetic valve 4 is connected to the inlet of the finned subcooler 3.
The outlet of the fin subcooler 3 is converged with the outlet of the second electromagnetic valve 5 and then divided into two branches which are respectively connected with the inlets of the first electronic expansion valve 7 and the second electronic expansion valve 8.
The outlet of the first electronic expansion valve 7 is divided into two branches, one branch is connected to the inlet of the liquid dividing pipe of the finned heat exchanger 2, and the other branch is connected to the inlet of the first check valve 6.
The gas collecting pipe orifice of the finned heat exchanger 2 is connected with the C port of the four-way reversing valve 14, and the S port of the four-way reversing valve 14 is connected with the inlet of the gas-liquid separator 18.
The outlet of the gas-liquid separator 18 is divided into two branches, one branch is merged with the outlet of the first shut-off valve 21 and then connected to the suction port of the single-machine two-stage scroll compressor 17, and the other branch is connected to the outlet of the third electromagnetic valve 13.
The oil outlet of the oil separator 20 is connected to the inlet of a second shut-off valve 24; the outlet of the second shut-off valve 24 is connected to the inlet of the oil filter 23; the outlet of the oil filter 23 is connected to the inlet of the fourth electromagnetic valve 22; the outlet of the fourth solenoid valve 22 is connected to the inlet of the first shut-off valve 21.
Above-mentioned high-power unit doublestage vortex formula ultra-low temperature air source heat pump, its beneficial effect lies in:
1. the application of the high-power single-machine two-stage scroll compressor in the air source heat pump has the advantages of large single-machine power, small occupied area and the like;
2. the air source heat pump can stably heat at the ambient temperature of-35 ℃, and solves the problem that the air source heat pump of the air-supplying enthalpy-increasing type scroll compressor can not prepare high-temperature hot water at the low-temperature environment;
3. the single-machine two-stage scroll compressor is simple to control and high in reliability;
4. the scroll compressor has the advantages of low noise, easy noise reduction and high economy.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (5)
1. The utility model provides a high-power unit doublestage vortex formula ultra-low temperature air source heat pump which characterized in that includes:
the exhaust port of the single-machine two-stage scroll compressor is divided into two branches, one branch is connected with the oil separator, and the other branch is connected with the third electromagnetic valve;
the oil separator is communicated with a four-way reversing valve which is communicated with the shell-and-tube heat exchanger;
the shell-and-tube heat exchanger is divided into two branches, one branch is connected with a second one-way valve, and the second one-way valve is communicated with the liquid reservoir after being converged with the first one-way valve; the other branch is connected with a second electronic expansion valve;
the liquid storage device is communicated with the drying filter, and the drying filter is communicated with the economizer;
the economizer is divided into two branches, one branch is connected with the second electronic expansion valve, and the other branch is divided into two branches which are respectively connected with the first electromagnetic valve and the second electromagnetic valve;
the second electronic expansion valve is communicated with the economizer which is communicated with the third one-way valve; the third one-way valve is communicated with the single-machine two-stage scroll compressor;
the first electromagnetic valve is communicated with the subcooler;
the subcooler is converged with the second electromagnetic valve and then divided into two branches which are respectively connected with the first electronic expansion valve and the second electronic expansion valve;
the first electronic expansion valve is divided into two branches, one branch is communicated with the heat exchanger, and the other branch is connected with the first one-way valve;
the heat exchanger is communicated with the four-way reversing valve; the four-way reversing valve is communicated with the gas-liquid separator;
the gas-liquid separator is divided into two branches, one branch is communicated with the single-machine two-stage scroll compressor after being converged with the first shutoff valve, and the other branch is communicated with the third electromagnetic valve;
the oil separator is communicated with the second shutoff valve, the second shutoff valve is communicated with the oil filter, the oil filter is communicated with the fourth electromagnetic valve, and the fourth electromagnetic valve is communicated with the first shutoff valve.
2. The high-power single-machine double-stage scroll type ultralow-temperature air source heat pump as claimed in claim 1, wherein an axial flow fan for forced convection is arranged above the heat exchanger.
3. The high-power stand-alone dual-stage scroll type ultralow-temperature air source heat pump as claimed in claim 1 or is characterized in that the heat exchanger is a finned heat exchanger.
4. The high-power stand-alone two-stage scroll type ultralow-temperature air source heat pump as claimed in claim 1, wherein the subcooler is a finned subcooler.
5. The high-power stand-alone two-stage scroll type ultralow-temperature air source heat pump as claimed in claim 1, wherein the stand-alone two-stage scroll compressor is a 60HP stand-alone two-stage scroll compressor.
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| CN201921142088.5U CN210292433U (en) | 2019-07-19 | 2019-07-19 | High-power single-machine two-stage vortex type ultralow-temperature air source heat pump |
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| CN201921142088.5U CN210292433U (en) | 2019-07-19 | 2019-07-19 | High-power single-machine two-stage vortex type ultralow-temperature air source heat pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110260560A (en) * | 2019-07-19 | 2019-09-20 | 北京金茂绿建科技有限公司 | A kind of high-power single machine two-stage vortex ultra-low temperature air source heat pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260560A (en) * | 2019-07-19 | 2019-09-20 | 北京金茂绿建科技有限公司 | A kind of high-power single machine two-stage vortex ultra-low temperature air source heat pump |
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