CN203771840U - Heat pump unit - Google Patents
Heat pump unit Download PDFInfo
- Publication number
- CN203771840U CN203771840U CN201420156312.7U CN201420156312U CN203771840U CN 203771840 U CN203771840 U CN 203771840U CN 201420156312 U CN201420156312 U CN 201420156312U CN 203771840 U CN203771840 U CN 203771840U
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- China
- Prior art keywords
- heat exchanger
- side heat
- air
- temperature sensor
- air side
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Abstract
The utility model provides a heat pump unit which comprises a compressor, a four-way valve, an air-side heat exchanger, a water-side heat exchanger, an air and liquid separator, a fan, a temperature sensor, an environmental temperature sensor and a controller. A port D of the four-way valve is connected with an output end of the compressor; an air pipe of the air-side heat exchanger is connected with a port C of the four-way valve; a liquid pipe of the water-side heat exchanger is connected with a liquid pipe of the air-side heat exchanger by a throttle component, and an air pipe of the water-side heat exchanger is connected with a port E of the four-way valve; an inlet of the air and liquid separator is connected with a port S of the four-way valve, and an outlet of the air and liquid separator is connected with an input end of the compressor; the fan is mounted on an air outlet of the air-side heat exchanger; the temperature sensor is used for detecting the temperature of a minimum-temperature region on the air-side heat exchanger during heating, and the environmental temperature sensor is mounted at an air inlet of the air-side heat exchanger; the controller is connected with the temperature sensor and controls the four-way valve. The heat pump unit has the advantages that the temperature sensor is mounted on the minimum-temperature region of the air-side heat exchanger, so that the temperature of the air-side heat exchanger can be detected at any time, the problem that the surface of an existing air-side heat exchanger is not completely defrosted can be solved, and normal work of the heat pump unit can be guaranteed.
Description
Technical field
The utility model relates to handpiece Water Chilling Units technical field, particularly a kind of pump type heat unit.
Background technology
Surging along with energy-conservation cry, Air-Cooled Heat Pump Unit is subject to increasing favor with it to the saving of water resource.But Air-Cooled Heat Pump Unit is when heating operation, because outdoor temperature is low, the frosting gradually of its evaporator surface, and along with leaving air temp and the heating capacity of the outdoor condenser of thickening of frost layer reduces gradually, therefore, regularly defrosting becomes the steps necessary that ensures the normal operation of Air-Cooled Heat Pump Unit.
At present, for the Defrost mode of pump type heat unit, generally have two kinds, a kind of is to shut down defrosting, allows the own thawing of frost, but this mode is infeasible when ambient temperature is lower, and the defrost time is longer; And another kind is heating and defrosting, utilize cross valve to change refrigerant flow direction, make evaporimeter become condenser, condenser becomes evaporimeter, thereby reaches the effect of defrosting.But second method, owing to cannot constantly detecting the temperature of evaporator surface, makes to occur the incomplete situation of defrost, and affect source pump, normally uses.
Therefore, how to provide a kind of pump type heat unit, complete to guarantee defrost, be the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of pump type heat unit, complete to guarantee defrost.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A pump type heat unit, is characterized in that, comprising:
Compressor;
Cross valve, and the D interface of described cross valve and the output of described compressor are connected;
Air side heat exchanger, the tracheae of described air side heat exchanger is connected with the C interface of described cross valve;
Water-side heat, the liquid pipe of described water-side heat is connected with the liquid pipe of described air side heat exchanger by throttle part, and the tracheae of described water-side heat and the E interface of described cross valve are connected;
Gas-liquid separator, the import of described gas-liquid separator is connected with the S interface of described cross valve, and the outlet of described gas-liquid separator is connected with the input of described compressor;
Be arranged on the blower fan of the air outlet of described air side heat exchanger;
For detection of on described air side heat exchanger when heating the temperature sensor of the temperature of temperature lowermost extent and be arranged on the environment temperature sensor at the air inlet place of described air side heat exchanger;
Be connected with described temperature sensor, and control the controller of described cross valve.
Preferably, in above-mentioned pump type heat unit, described air side heat exchanger is finned heat exchanger.
Preferably, in above-mentioned pump type heat unit, described water-side heat is shell and tube exchanger, plate type heat exchanger or double pipe heat exchanger.
Preferably, in above-mentioned pump type heat unit, described throttle part is electric expansion valve, heating power expansion valve or capillary.
Preferably, in above-mentioned pump type heat unit, described temperature sensor is arranged on the copper pipe elbow on the stream that in all streams of described air side heat exchanger, temperature is minimum.
The utility model provides a kind of pump type heat unit, and it comprises compressor; Cross valve, and the D interface of this cross valve and the output of compressor are connected; Air side heat exchanger, its tracheae is connected with the C interface of cross valve; Water-side heat, its liquid pipe is connected with the liquid pipe of air side heat exchanger by throttle part, and the tracheae of water-side heat and the E interface of cross valve are connected; Gas-liquid separator, its import is connected with the S interface of cross valve, and its outlet is connected with the input of compressor; Be arranged on the blower fan of the air outlet of air side heat exchanger; For detection of on air side heat exchanger when heating the temperature sensor of the temperature of temperature lowermost extent and be arranged on the environment temperature sensor at the air inlet place of air side heat exchanger; Be connected with this temperature sensor, and control the controller of cross valve.In the application, by mounting temperature sensor in the temperature lowermost extent of air side heat exchanger, can constantly detect the temperature on air side heat exchanger, and to the control of cross valve, can realize the defrosting to air side heat exchanger surface by controller.Because temperature sensor is arranged on temperature lowermost extent, therefore, can prevent the incomplete problem of air side heat exchanger surface defrosting, guaranteed the normal work of this pump type heat unit.
Accompanying drawing explanation
The structural representation of the pump type heat unit that Fig. 1 provides for the utility model embodiment.
The specific embodiment
Core of the present utility model is to provide a kind of pump type heat unit, complete to guarantee defrost.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with drawings and embodiments, the utility model is described in further detail.
Please refer to shown in Fig. 1, the utility model embodiment discloses a kind of pump type heat unit, and it comprises compressor 1; Cross valve 2, and the D interface of this cross valve 2 is connected with the output of compressor 1; Air side heat exchanger 3, its tracheae is connected with the C interface of cross valve 2; Water-side heat 8, its liquid pipe is connected with the liquid pipe of air side heat exchanger 3 by throttle part 7, and the tracheae of water-side heat 8 is connected with the E interface of cross valve 2; Gas-liquid separator 10, its import is connected with the S interface of cross valve 2, and its outlet is connected with the input of compressor 1; Be arranged on the blower fan 4 of the air outlet of air side heat exchanger 3; Be arranged on air side heat exchanger 3 air inlet place environment temperature sensor 6 and for detection of on air side heat exchanger 3 when heating the temperature sensor 5 of the temperature of temperature lowermost extent; Be connected with this temperature sensor 5, and control the controller of cross valve 2.
Wherein, above-mentioned air side heat exchanger 3 is in process, and operator can detect its temperature lowermost extent position when heating in advance, and makes a mark at this, to guarantee when this temperature sensor 5 is installed, temperature lowermost extent in the time of can directly finding air side heat exchanger 3 to heat.Preferably, air outlet place that can air side heat exchanger 5 is set to temperature lowermost extent.
And receive after the temperature signal that temperature sensor 5 detects when above-mentioned controller, regulate cross valve 2.Particularly, the temperature signal detecting when temperature sensor 5 is during lower than the first preset value, the D interface that controller is controlled cross valve 2 is communicated with E interface, C interface is communicated with S interface, to defrost, refrigerant flow direction now: compressor 1-cross valve 2-water-side heat 8-throttle part 7-air side heat exchanger 3-cross valve 2-gas-liquid separator 10-compressor 1.The temperature signal detecting when temperature sensor 5 is during higher than the second preset value, the D interface that controller is controlled cross valve 2 is communicated with C interface, E interface is communicated with S interface, to carry out process of refrigerastion, now, refrigerant flow direction: compressor 1-cross valve 2-air side heat exchanger 3-throttle part 7-water-side heat 8-cross valve 2-gas-liquid separator 10-compressor 1.It will be appreciated by persons skilled in the art that the first above-mentioned preset value and the second preset value can set according to external environment and actual needs, at this, do not do detailed restriction.
In the application, by mounting temperature sensor 5 in the temperature lowermost extent of air side heat exchanger 3, can constantly detect the temperature on air side heat exchanger 3, and to the control of cross valve 2, can realize the defrosting to air side heat exchanger 3 surfaces by controller.Because temperature sensor 5 is arranged on temperature lowermost extent, therefore, can prevent the incomplete problem of air side heat exchanger 3 surface defrosting, guaranteed the normal work of this pump type heat unit.
On the basis of technique scheme, air side heat exchanger 3 can be set to finned heat exchanger, and temperature sensor 5 be arranged on to the temperature lowermost extent of this finned heat exchanger.Preferably, this temperature sensor 5 is arranged on the copper pipe elbow on the stream that in all streams of air side heat exchanger 3, temperature is minimum, the particular location that a kind of this temperature sensor 5 provided herein is installed.It will be appreciated by persons skilled in the art that the heat exchanger of type that in practice can be different according to different selections, and all in protection domain.
In the application, water-side heat 8 is set to shell and tube exchanger, plate type heat exchanger or double pipe heat exchanger, has only been to provide the heat exchanger of several concrete forms herein, in production process, can select according to different needs.
Further, in embodiment, above-mentioned throttle part 7 is set to electric expansion valve, heating power expansion valve or capillary.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a pump type heat unit, is characterized in that, comprising:
Compressor (1);
Cross valve (2), and the D interface of described cross valve (2) is connected with the output of described compressor (1);
Air side heat exchanger (3), the tracheae of described air side heat exchanger (3) is connected with the C interface of described cross valve (2);
Water-side heat (8), the liquid pipe of described water-side heat (8) is connected with the liquid pipe of described air side heat exchanger (3) by throttle part (7), and the tracheae of described water-side heat (8) is connected with the E interface of described cross valve (2);
Gas-liquid separator (10), the import of described gas-liquid separator (10) is connected with the S interface of described cross valve (2), and the outlet of described gas-liquid separator (10) is connected with the input of described compressor (1);
Be arranged on the blower fan (4) of the air outlet of described air side heat exchanger (3);
For detection of described air side heat exchanger (3) upper when heating the temperature of temperature lowermost extent temperature sensor (5) and be arranged on the environment temperature sensor (6) at the air inlet place of described air side heat exchanger (3);
Be connected with described temperature sensor (5), and control the controller of described cross valve (2).
2. pump type heat unit according to claim 1, is characterized in that, described air side heat exchanger (3) is finned heat exchanger.
3. pump type heat unit according to claim 1, is characterized in that, described water-side heat (8) is shell and tube exchanger, plate type heat exchanger or double pipe heat exchanger.
4. pump type heat unit according to claim 1, is characterized in that, described throttle part (7) is electric expansion valve, heating power expansion valve or capillary.
5. according to the pump type heat unit described in claim 1-4 any one, it is characterized in that, described temperature sensor (5) is arranged on the copper pipe elbow on the stream that in all streams of described air side heat exchanger (3), temperature is minimum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156312.7U CN203771840U (en) | 2014-04-01 | 2014-04-01 | Heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156312.7U CN203771840U (en) | 2014-04-01 | 2014-04-01 | Heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203771840U true CN203771840U (en) | 2014-08-13 |
Family
ID=51289025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420156312.7U Expired - Fee Related CN203771840U (en) | 2014-04-01 | 2014-04-01 | Heat pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203771840U (en) |
-
2014
- 2014-04-01 CN CN201420156312.7U patent/CN203771840U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20180401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |