CN207268554U - A kind of heat pump unit - Google Patents
A kind of heat pump unit Download PDFInfo
- Publication number
- CN207268554U CN207268554U CN201720952303.2U CN201720952303U CN207268554U CN 207268554 U CN207268554 U CN 207268554U CN 201720952303 U CN201720952303 U CN 201720952303U CN 207268554 U CN207268554 U CN 207268554U
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- connecting tube
- expansion valve
- heat pump
- unit
- liquid pipe
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Abstract
The utility model discloses a kind of heat pump unit, it includes indoor unit (1), outdoor unit (2), the liquid pipe connecting tube (3) for connecting indoor unit (1) and outdoor unit (2) and the first expansion valve (411) being serially connected between one end of liquid pipe connecting tube (3) and outdoor unit (2)；It further includes the second expansion valve (412) between the other end for being serially connected in liquid pipe connecting tube (3) and indoor unit (1), first expansion valve (411) is used as adjusting its aperture when heat pump unit is in refrigerating operaton so that some refrigerant flows into liquid pipe connecting tube (3) by the first expansion valve (411), and second expansion valve (412) is used as adjusting its aperture when heat pump unit is in refrigerating operaton so that the refrigerant storage partly flowed into by the first expansion valve (411) is in liquid pipe connecting tube (3).The utility model has the advantages that the refrigerant for avoiding enter into outdoor unit (2) side is excessive.
Description
Technical field
Heat pump unit is the utility model is related to, specifically a kind of heat pump unit.
Background technology
As northern coal changes the popularization of electricity, the demand of air source heat pump is increasing, and the indoor unit of air source heat pump is equal
It is to use water-side heat, i.e. double pipe heat exchanger, therefore the demand of double pipe heat exchanger is increasing.Coaxial-type casing changes
Hot device is due to the particularity of structure, and the liquid measure of required refrigerant is more during heating, and the liquid measure of required refrigerant is less when freezing,
And the air source heat pump in the north is mainly used in heating, therefore when designing complete machine liquid volume added mainly based on heating, this is just
When causing same unit equipment operation refrigeration mode, the liquid measure of refrigerant is this excessive, more part for system
Liquid measure can not evaporate completely inside coaxial type sleeve heat-exchanger, and effect is poor when refrigeration just occurs, simultaneously because refrigerant mistake
Cause the condensing pressure of system operation is high to cause efficiency low indirectly, can not evaporate complete refrigerant and return to compressor to cause more
Liquid hammer is so as to damage compressor.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of heat pump unit, avoids enter into the system of outdoor pusher side
Cryogen is excessive.
In order to solve the above technical problems, the technical solution of this offer is：A kind of heat pump unit, it includes indoor unit, outdoor
Machine, the liquid pipe connecting tube for connecting indoor unit and outdoor unit and be serially connected between one end of liquid pipe connecting tube and outdoor unit first
Expansion valve；It further includes the second expansion valve being serially connected between the other end and indoor unit of liquid pipe connecting tube, first expansion
Valve is used as adjusting its aperture so that some refrigerant is flowed into by the first expansion valve when heat pump unit is in refrigerating operaton
Liquid pipe connecting tube, second expansion valve is used as adjusting its aperture when heat pump unit is in refrigerating operaton so that part passes through
The refrigerant storage that first expansion valve flows into is in liquid pipe connecting tube.
Preferably, second expansion valve is connected on the connecting tube between the indoor heat exchanger of indoor unit and liquid pipe connecting tube
On.
Preferably, first expansion valve is connected on the connecting tube between the outdoor heat exchanger of outdoor unit and liquid pipe connecting tube
On.
Preferably, it further includes the first temperature sensor and second temperature sensor；At first temperature sensor
In connecting tube between the indoor heat exchanger of indoor unit and the tracheae connecting tube of heat pump unit, at the second temperature sensor
In the compressor of outdoor unit gas returning port and outdoor unit four-way valve an entrance between connecting tube on.
Preferably, it further includes three-temperature sensor and the 4th temperature sensor, at the three-temperature sensor
In connecting tube between the outdoor heat exchanger and the first expansion valve of outdoor unit, the 4th temperature sensor is in indoor unit
In connecting tube between indoor heat exchanger and the second expansion valve.
Preferably, it further includes pressure sensor, the pressure sensor be in the outlet of the four-way valve of outdoor unit with
In connecting tube between the outlet of compressor.
After above structure, the utility model compared with prior art, has the following advantages：
The second expansion valve being serially connected between the other end and indoor unit of liquid pipe connecting tube, first expansion valve are used as
Heat pump unit adjusts its aperture when being in refrigerating operaton so that some refrigerant flows into liquid pipe connection by the first expansion valve
Pipe, second expansion valve is used as adjusting its aperture when heat pump unit is in refrigerating operaton so that part passes through the first expansion
The refrigerant storage that valve flows into is in liquid pipe connecting tube.Be based on the setting of above-mentioned dependency structure, by, the first expansion valve and
The cooperation of second expansion valve, wherein, the first expansion valve be used as when heat pump unit is in refrigerating operaton adjusting its aperture so that
Some refrigerant flows into liquid pipe connecting tube by the first expansion valve, wherein, the second expansion valve is used as being in system in heat pump unit
Its aperture is adjusted when cold operation so that the refrigerant storage partly flowed into by the first expansion valve passes through in liquid pipe connecting tube
Above-mentioned means, some refrigerant can be stored in liquid pipe connecting tube, excessive so as to avoid the refrigerant of unit, overcome
Defect present in background technology.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Described in figure：1st, indoor unit；2nd, outdoor unit；3rd, liquid pipe connecting tube；411st, the first expansion valve；412nd, the second expansion
Valve；511st, the first temperature sensor；512nd, second temperature sensor；513rd, three-temperature sensor；514th, the 4th temperature sensing
Device；611st, indoor heat exchanger；612nd, outdoor heat exchanger；7th, tracheae connecting tube；8th, compressor；9th, four-way valve；10th, pressure sensing
Device.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Shown in Fig. 1, a kind of heat pump unit of the utility model, it includes indoor unit 1, outdoor unit 2, connects indoor unit 1 and room
The liquid pipe connecting tube 3 of outer machine 2 and the first expansion valve 411 being serially connected between one end of liquid pipe connecting tube 3 and outdoor unit 2；It
Further include the second expansion valve 412 between the other end for being serially connected in liquid pipe connecting tube 3 and indoor unit 1, first expansion valve 411
As adjusting its aperture when heat pump unit is in refrigerating operaton so that some refrigerant is flowed into by the first expansion valve 411
Liquid pipe connecting tube 3, second expansion valve 412 are used as adjusting its aperture so that part when heat pump unit is in refrigerating operaton
The refrigerant storage flowed into by the first expansion valve 411 is in liquid pipe connecting tube 3.
Wait in the specific implementation, the indoor heat exchanger 611 that second expansion valve 412 is connected on indoor unit 1 is connected with liquid pipe
In connecting tube between pipe 3.
Wait in the specific implementation, the outdoor heat exchanger 612 that first expansion valve 411 is connected on outdoor unit 2 is connected with liquid pipe
In connecting tube between pipe 3.
Wait in the specific implementation, it further includes the first temperature sensor 511 and second temperature sensor 512；Described first
Temperature sensor 511 is in the connecting tube between the indoor heat exchanger 611 of indoor unit 1 and the tracheae connecting tube 7 of heat pump unit,
The second temperature sensor 512 be in the gas returning port of the compressor 8 of outdoor unit 2 and the four-way valve 9 of outdoor unit 2 an entrance it
Between connecting tube on.
To wait in the specific implementation, it further includes 513 and the 4th temperature sensor 514 of three-temperature sensor, and the described 3rd
Temperature sensor 513 is in the connecting tube between 611 and first expansion valve 411 of outdoor heat exchanger of outdoor unit 2, and the described 4th
Temperature sensor 514 is in the connecting tube between 612 and second expansion valve 412 of indoor heat exchanger of indoor unit 1.
Wait in the specific implementation, it further includes pressure sensor 10, and the pressure sensor 10 is in the four-way of outdoor unit 2
In connecting tube between the outlet of valve 9 and the outlet of compressor 8.
Only the most preferred embodiment of the utility model is described above, but is not to be construed as the limit to claim
System.The utility model is not limited only to above example, all to be made in the protection domain of the independent claims of the utility model
Various change it is within the protection scope of the present utility model.
Claims (6)
1. a kind of heat pump unit, it includes indoor unit (1), outdoor unit (2), the liquid pipe company for connecting indoor unit (1) and outdoor unit (2)
Adapter (3) and the first expansion valve (411) being serially connected between one end of liquid pipe connecting tube (3) and outdoor unit (2)；Its feature exists
In：It further includes the second expansion valve (412) between the other end for being serially connected in liquid pipe connecting tube (3) and indoor unit (1), and described
One expansion valve (411) is used as adjusting its aperture so that some refrigerant is swollen by first when heat pump unit is in refrigerating operaton
Swollen valve (411) flows into liquid pipe connecting tube (3), and second expansion valve (412) is used as when heat pump unit is in refrigerating operaton
Wait and adjust its aperture so that the refrigerant storage partly flowed into by the first expansion valve (411) is in liquid pipe connecting tube (3).
A kind of 2. heat pump unit according to claim 1, it is characterised in that：Second expansion valve (412) is connected on interior
In connecting tube between the indoor heat exchanger (611) and liquid pipe connecting tube (3) of machine (1).
A kind of 3. heat pump unit according to claim 1, it is characterised in that：First expansion valve (411) is connected on outdoor
In connecting tube between the outdoor heat exchanger (612) and liquid pipe connecting tube (3) of machine (2).
A kind of 4. heat pump unit according to claim 1, it is characterised in that：It further includes the first temperature sensor (511)
With second temperature sensor (512)；First temperature sensor (511) be in the indoor heat exchanger (611) of indoor unit (1) with
In connecting tube between the tracheae connecting tube (7) of heat pump unit, the second temperature sensor (512) is in outdoor unit (2)
In connecting tube between one entrance of the gas returning port of compressor (8) and the four-way valve (9) of outdoor unit (2).
A kind of 5. heat pump unit according to claim 1, it is characterised in that：It further includes three-temperature sensor (513)
With the 4th temperature sensor (514), the three-temperature sensor (513) be in the outdoor heat exchanger (611) of outdoor unit (2) with
In connecting tube between first expansion valve (411), the 4th temperature sensor (514) is in the indoor heat exchange of indoor unit (1)
In connecting tube between device (612) and the second expansion valve (412).
A kind of 6. heat pump unit according to claim 1, it is characterised in that：It further includes pressure sensor (10), described
Pressure sensor (10) is in the connecting tube between the outlet of the four-way valve (9) of outdoor unit (2) and the outlet of compressor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720952303.2U CN207268554U (en) | 2017-07-31 | 2017-07-31 | A kind of heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720952303.2U CN207268554U (en) | 2017-07-31 | 2017-07-31 | A kind of heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207268554U true CN207268554U (en) | 2018-04-24 |
Family
ID=61961003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720952303.2U Active CN207268554U (en) | 2017-07-31 | 2017-07-31 | A kind of heat pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207268554U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576094A (en) * | 2017-07-31 | 2018-01-12 | 宁波奥克斯电气股份有限公司 | A kind of source pump and its operation method |
-
2017
- 2017-07-31 CN CN201720952303.2U patent/CN207268554U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576094A (en) * | 2017-07-31 | 2018-01-12 | 宁波奥克斯电气股份有限公司 | A kind of source pump and its operation method |
| CN107576094B (en) * | 2017-07-31 | 2023-04-18 | 宁波奥克斯电气股份有限公司 | Heat pump unit and operation method thereof |
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