CN210569370U - Low-temperature frequency conversion air source heat pump unit - Google Patents
Low-temperature frequency conversion air source heat pump unit Download PDFInfo
- Publication number
- CN210569370U CN210569370U CN201921762072.4U CN201921762072U CN210569370U CN 210569370 U CN210569370 U CN 210569370U CN 201921762072 U CN201921762072 U CN 201921762072U CN 210569370 U CN210569370 U CN 210569370U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- air source
- liquid separator
- heat pump
- low
- 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.)
- Active
Links
Images
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model provides a low temperature frequency conversion air source heat pump set. The system comprises a variable frequency compressor, a pressure sensor, a temperature sensor, a four-way reversing valve, a finned heat exchanger, a water side heat exchanger, a filter, a throttling device, a one-way valve, a regenerative gas-liquid separator and an electromagnetic valve. The utility model discloses the unit is compared in fixed frequency air source heat pump set, can be according to the change of ring temperature and the running state such as the pressure of the unit that detects, temperature, through the infinitely variable of compressor, realizes the stable output of unit ability to make the unit can be at-30 ℃ to 40 ℃ ultra wide ring temperature within range high-efficient stable operation. In addition, the unit is matched with an ultra-efficient regenerative gas-liquid separator and an air-supplying enthalpy-increasing system, so that the heating capacity of the unit is further improved.
Description
Technical Field
The utility model relates to an air source heat pump technical field especially relates to a low temperature frequency conversion air source heat pump set.
Background
With the development of heat pump technology, heat pump units are applied more and more in low-ring-temperature environments. The mainstream heat pump unit in the current market is mainly driven by a low-temperature liquid spraying or air supplying and enthalpy increasing compressor. However, the existing fixed-frequency low-temperature heat pump unit cannot adapt to the temperature change of the environment well, so that the phenomena of excessive heating in summer and serious attenuation of the capacity of the heat pump unit in winter cannot meet the requirements of users are caused.
SUMMERY OF THE UTILITY MODEL
According to the technical problem provided by the invention, a low-temperature variable-frequency air source heat pump unit is provided. The utility model discloses can be according to the change of ring temperature and the operating condition such as the pressure of the unit that detects, temperature, through the infinitely variable of compressor, realize the stable output of unit heating capacity to make the unit can be at-30 ℃ to 40 ℃ ultra wide ring temperature within range high-efficient stable operation. The utility model discloses a technical means as follows:
a low temperature frequency conversion air source heat pump unit includes: the air outlet of the compressor is connected with the four-way reversing valve through a pipeline, three branches of the four-way reversing valve are respectively connected with the water side heat exchanger, the regenerative gas-liquid separator and the fin type heat exchanger through pipelines, a one-way valve is arranged on the pipeline, the outlet of the regenerative gas-liquid separator is connected with the economizer, the economizer is respectively connected with the air inlet of the compressor and the fin type heat exchanger, and a plurality of filters and a plurality of throttling devices are arranged at preset positions of the water side heat exchanger, the regenerative gas-liquid separator, the fin type heat exchanger and the economizer communicating pipeline.
Further, the compressor is a 6-stage direct-current variable frequency compressor.
Further, the variable frequency compressor is provided with an air-supplying and enthalpy-increasing hole.
Further, the water side heat exchanger is a double-pipe heat exchanger, a plate heat exchanger or a high-efficiency tank heat exchanger.
Furthermore, a filter A and a filter B are arranged on a main pipe of the fin heat exchanger, which is connected with the water side heat exchanger, the regenerative gas-liquid separator and the economizer, a first throttling device and a second throttling device are respectively arranged on two pipelines between the filter A and the filter B, a third throttling device is arranged on a pipeline between the economizer and the filter A, the second throttling device and the third throttling device are electronic expansion valves, and the first throttling device is a capillary tube.
Further, the economizer is a plate heat exchanger.
Furthermore, a copper material winding pipe is arranged in the regenerative gas-liquid separator.
Furthermore, a first one-way valve is arranged on a pipeline between the filter A and the water side heat exchanger and between the filter A and the regenerative gas-liquid separator, a second one-way valve is arranged between the regenerative gas-liquid separator and the economizer, and the first one-way valve and the second one-way valve are sliding block type one-way valves.
The utility model has the advantages of it is following:
1. through the stepless speed change of the 6-stage direct-current variable-frequency compressor, the stable output of the heating capacity of the unit is realized, so that the unit can efficiently and stably operate in an ultra-wide ring temperature range from-30 ℃ to 40 ℃.
2. Through the regenerative gas-liquid separator, the waste heat of condensation can be recovered, the gas supplementing quantity can be improved, the refrigerant in front of the valve can be supercooled, and the capacity of a unit is improved.
3. The two sets of slide block type one-way valves are utilized to realize that the unit passes through the economizer in a heating mode, and the economizer in a refrigerating mode is not passed through, so that unnecessary pressure drop in the refrigerant circulating process is reduced during refrigerating circulation, and the refrigerating capacity of the unit is improved.
Based on the reason, the utility model discloses can extensively promote in air source heat pump technical field.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of a low-temperature variable-frequency air source heat pump unit system provided by an embodiment of the present invention.
In the figure: 1. a variable frequency compressor; 2. a pressure sensor; 3. a needle valve; 4. a temperature sensor; 5. a four-way reversing valve; 6. a finned heat exchanger; 7. a first throttling device; 8. a second throttling device; 9. a filter; 10. a water side heat exchanger; 11. a first check valve; 12. a regenerative gas-liquid separator; 13. a second one-way valve; 14. an economizer; 15. a third throttling means; 16. an electromagnetic valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment discloses a low-temperature variable-frequency air source heat pump unit, which includes: a compressor, a pressure sensor 2, a temperature sensor 4, a four-way reversing valve 5, a finned heat exchanger 6, a water side heat exchanger 10, a regenerative gas-liquid separator 12, an economizer 14 and an electromagnetic valve 16, the air outlet of the compressor is connected with a four-way reversing valve 5 through a pipeline, three branches of the four-way reversing valve 5 are respectively connected with the water side heat exchanger 10, the regenerative gas-liquid separator 12 and the finned heat exchanger 6, the water side heat exchanger 10, the regenerative gas-liquid separator 12 and the finned heat exchanger 6 are also connected through pipelines, one-way valves are arranged on the pipelines, the outlet of the regenerative gas-liquid separator 12 is connected with an economizer 14, the economizer 14 is respectively connected with the air inlet of the compressor and the fin type heat exchanger 6, and a plurality of filters and a plurality of throttling devices are arranged at preset positions of the water side heat exchanger 10, the regenerative gas-liquid separator 12, the fin type heat exchanger 6 and an economizer 14 communicating pipeline. The pipelines between the compressor and the four-way reversing valve 5 and between the compressor and the regenerative gas-liquid separator 12 are respectively provided with a pressure sensor 2 for detecting pressure, a temperature sensor 4 for detecting temperature and a needle valve 3 for adjusting flow.
In the prior art, the stepless speed change compressor has two types of 4-stage and 6-stage, and the performance of 6-stage is better, so that the compressor is a 6-stage direct current variable frequency compressor 1 as a preferred embodiment.
In a preferred embodiment, the inverter compressor 1 is provided with an air-supplying enthalpy-increasing hole.
As a preferred embodiment, the water side heat exchanger 10 is a double pipe heat exchanger, a plate heat exchanger or a high efficiency tank heat exchanger.
In a preferred embodiment, a filter a and a filter B are arranged on a main pipe connecting the fin heat exchanger with the water-side heat exchanger 10, the regenerative gas-liquid separator 12 and the economizer 14, a first throttling device 7 and a second throttling device 8 are respectively arranged on two pipelines between the filter a and the filter B, a third throttling device 15 is arranged on a pipeline between the economizer 14 and the filter a, the second throttling device 8 and the third throttling device 15 are electronic expansion valves, and the first throttling device 7 is a capillary tube. The opening degrees of the second throttle device 8 and the third throttle device 15 are converted into superheat degree adjustments by the values detected by the pressure sensor 2 and the temperature sensor 4.
In a preferred embodiment, the economizer 14 is a plate heat exchanger.
In a preferred embodiment, the regenerative gas-liquid separator 12 is a copper-material coiled pipe.
In a preferred embodiment, a first check valve 11 is disposed in a pipeline between the filter a and the water-side heat exchanger 10 and the regenerative gas-liquid separator 12, a second check valve 13 is disposed between the regenerative gas-liquid separator 12 and the economizer 14, and both the first check valve 11 and the second check valve 13 are slider check valves. The specific operation modes of this embodiment are as follows:
when the low-temperature variable-frequency air source heat pump unit operates in a heating mode, a high-temperature refrigerant enters the four-way reversing valve 5 through an exhaust port of the variable-frequency compressor 1, then enters the water-side heat exchanger 10 to exchange heat with supplied water and is heated to a required temperature, the condensed refrigerant enters the regenerative gas-liquid separator 12 to exchange heat with liquid refrigerant therein, the refrigerant after being released for condensation enters the second one-way valve 13 and the economizer 14 in sequence, the refrigerant coming out of the economizer 14 is divided into two paths, one path of the refrigerant passes through the third throttling device 15 for throttling, exchanges heat with the refrigerant coming from the regenerative gas-liquid separator 12 in the economizer 14, the refrigerant converted into a gaseous state after absorbing heat enters the air suction cavity of the compressor through the electromagnetic valve 16, and the other path of the refrigerant enters the finned heat exchanger 6 to exchange heat with air after being throttled and depressurized by the filter 9, the first throttling device 7 and the second throttling, then returns to the variable frequency compressor 1 through the four-way reversing valve 5 and the regenerative gas-liquid separator 12 in sequence to complete the heating cycle.
When the low-temperature variable-frequency air source heat pump unit operates in a refrigeration mode, a high-temperature refrigerant enters the four-way reversing valve 5 through an exhaust port of the variable-frequency compressor 1 and then enters the finned heat exchanger 6 to exchange heat with air, the condensed refrigerant enters the first one-way valve 11 and the water side heat exchanger 10 in sequence after being throttled and depressurized by the filter 9, the first throttling device 7 and the second throttling device 8 to exchange heat with water supply and be cooled to a set temperature, and then the refrigerant returns to the variable-frequency compressor 1 after sequentially passing through the four-way reversing valve 5 and the regenerative gas-liquid separator 12.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a low temperature frequency conversion air source heat pump set which characterized in that includes: the air outlet of the compressor is connected with the four-way reversing valve through a pipeline, three branches of the four-way reversing valve are respectively connected with the water side heat exchanger, the regenerative gas-liquid separator and the fin type heat exchanger through pipelines, a one-way valve is arranged on the pipeline, the outlet of the regenerative gas-liquid separator is connected with the economizer, the economizer is respectively connected with the air inlet of the compressor and the fin type heat exchanger, and a plurality of filters and a plurality of throttling devices are arranged at preset positions of the water side heat exchanger, the regenerative gas-liquid separator, the fin type heat exchanger and the economizer communicating pipeline.
2. The low-temperature variable-frequency air source heat pump unit according to claim 1, wherein the compressor is a 6-stage direct-current variable-frequency compressor.
3. The low-temperature variable-frequency air source heat pump unit according to claim 2, wherein the variable-frequency compressor is provided with an air-supplying enthalpy-increasing hole.
4. The low-temperature variable-frequency air source heat pump unit according to claim 1, wherein the water side heat exchanger is a double-pipe heat exchanger, a plate heat exchanger or a high-efficiency tank heat exchanger.
5. The low-temperature variable-frequency air source heat pump unit according to claim 1, wherein a filter A and a filter B are arranged on a main pipe of the fin heat exchanger connected with the water side heat exchanger, the regenerative gas-liquid separator and the economizer, a first throttling device and a second throttling device are respectively arranged on two pipelines between the filter A and the filter B, a third throttling device is arranged on a pipeline between the economizer and the filter A, the second throttling device and the third throttling device are electronic expansion valves, and the first throttling device is a capillary tube.
6. The low-temperature variable-frequency air source heat pump unit according to claim 1 or 5, wherein the economizer is a plate heat exchanger.
7. The low-temperature variable-frequency air source heat pump unit according to claim 1 or 5, wherein a copper winding pipe is arranged in the regenerative gas-liquid separator.
8. The low-temperature variable-frequency air source heat pump unit according to claim 1, wherein a first one-way valve is arranged on a pipeline between the filter A and the water side heat exchanger and between the filter A and the regenerative gas-liquid separator, a second one-way valve is arranged between the regenerative gas-liquid separator and the economizer, and the first one-way valve and the second one-way valve are sliding block type one-way valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921762072.4U CN210569370U (en) | 2019-10-18 | 2019-10-18 | Low-temperature frequency conversion air source heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921762072.4U CN210569370U (en) | 2019-10-18 | 2019-10-18 | Low-temperature frequency conversion air source heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210569370U true CN210569370U (en) | 2020-05-19 |
Family
ID=70661734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921762072.4U Active CN210569370U (en) | 2019-10-18 | 2019-10-18 | Low-temperature frequency conversion air source heat pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210569370U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556242A (en) * | 2018-09-29 | 2019-04-02 | 青岛海尔空调电子有限公司 | A kind of air conditioner muffler control method |
| CN111765517A (en) * | 2020-06-06 | 2020-10-13 | 苏州浪潮智能科技有限公司 | Low-temperature starting air conditioning system |
| CN113154514A (en) * | 2021-05-19 | 2021-07-23 | 大连理工大学 | Machine-pump combined-drive enthalpy-increasing type air source heat pump user three-purpose machine for cooling, heating and water heating |
| CN113739558A (en) * | 2021-07-22 | 2021-12-03 | 广东申菱环境系统股份有限公司 | Heat pump unit and control method thereof |
-
2019
- 2019-10-18 CN CN201921762072.4U patent/CN210569370U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556242A (en) * | 2018-09-29 | 2019-04-02 | 青岛海尔空调电子有限公司 | A kind of air conditioner muffler control method |
| CN111765517A (en) * | 2020-06-06 | 2020-10-13 | 苏州浪潮智能科技有限公司 | Low-temperature starting air conditioning system |
| CN111765517B (en) * | 2020-06-06 | 2021-10-22 | 苏州浪潮智能科技有限公司 | Low-temperature starting air conditioning system |
| CN113154514A (en) * | 2021-05-19 | 2021-07-23 | 大连理工大学 | Machine-pump combined-drive enthalpy-increasing type air source heat pump user three-purpose machine for cooling, heating and water heating |
| CN113739558A (en) * | 2021-07-22 | 2021-12-03 | 广东申菱环境系统股份有限公司 | Heat pump unit and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210569370U (en) | Low-temperature frequency conversion air source heat pump unit | |
| CN103175344B (en) | Cold-region used multi-connected heat pump system and control method thereof | |
| CN203642549U (en) | Compressor unit system and heat pump system | |
| CN110307673B (en) | Solar energy synergistic heat pump system | |
| CN110307669B (en) | Solar energy synergy multi-mode heating device based on compression heat pump circulation | |
| CN211233445U (en) | Direct-current variable-frequency carbon dioxide heat pump cold and hot unit | |
| CN210569369U (en) | Low-temperature frequency conversion overlapping high-temperature air source heat pump unit | |
| CN211119989U (en) | Multi-stage compression multi-condenser intermediate throttling incomplete cooling medium-high temperature heat pump system | |
| CN211233446U (en) | Direct-current frequency conversion overlapping carbon dioxide heat pump unit | |
| JPWO2018097124A1 (en) | Air conditioner | |
| CN112963979A (en) | Overlapping heat pump system capable of realizing work cycle conversion | |
| CN211233431U (en) | Direct-current variable-frequency air-supplementing enthalpy-increasing carbon dioxide heat pump unit | |
| CN103743149B (en) | Check valve controls the heat pump type air conditioning system of refrigerant flow direction in regenerator | |
| CN210035931U (en) | Heat pump system | |
| CN114076423A (en) | CO (carbon monoxide)2Transcritical cold-hot coupling combined supply system and regulation and control method | |
| CN109579357B (en) | Multi-online heat pump system with efficient heat recovery function and control method | |
| CN102778081A (en) | Multilevel heat pump system | |
| CN108759156B (en) | Secondary throttling middle incomplete cooling two-stage compression heat pump system | |
| CN201803523U (en) | Full heat recovery five-mode heat pump device | |
| CN110645736A (en) | Direct-current variable-frequency carbon dioxide heat pump cold and hot unit | |
| CN110762888A (en) | Air energy heat pump system and control method thereof | |
| CN211233376U (en) | Carbon dioxide direct-current variable-frequency heat pump water heater | |
| CN103743148B (en) | There is the capillary-compensated heat pump type air conditioner of regenerator | |
| CN218154891U (en) | Extremely cold overlapping formula heat pump system | |
| CN220981638U (en) | Air source heat pump hot and cold water system capable of supplying heat and defrosting continuously |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |