CN202083150U - Secondary air injection device of efficient ultralow-temperature heat pump - Google Patents
Secondary air injection device of efficient ultralow-temperature heat pump Download PDFInfo
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- CN202083150U CN202083150U CN2011201583589U CN201120158358U CN202083150U CN 202083150 U CN202083150 U CN 202083150U CN 2011201583589 U CN2011201583589 U CN 2011201583589U CN 201120158358 U CN201120158358 U CN 201120158358U CN 202083150 U CN202083150 U CN 202083150U
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- compressor
- heat pump
- economizer
- liquid storage
- secondary air
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- 238000002347 injection Methods 0.000 title claims abstract description 28
- 239000007924 injection Substances 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 239000013589 supplement Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003507 refrigerant Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Abstract
The utility model discloses a secondary air injection device of an efficient ultralow-temperature heat pump, which is arranged between a compressor and a liquid storage tank of the heat pump. A loop is formed by sequentially connecting the compressor, a condenser, the liquid storage tank, a heat expansion valve, an evaporator and a liquid-gas separator of the heat pump, and the secondary air injection device comprises an economizer, a first electromagnetic valve, a capillary tube, a secondary electromagnetic valve and an injection expansion valve, wherein the liquid storage tank is in series connection with the economizer sequentially through the first electromagnetic valve and the capillary tube, the liquid storage tank is in series connection with the economizer sequentially through the second electromagnetic valve and the injection expansion valve, and the economizer is connected with the compressor. By adopting the secondary air injection device, the normal running temperature range of the compressor is greatly enlarged, so that the compressor is guaranteed to work normally above below 30 DEG C, therefore, a heat pump set works stably, has good reliability and an ideal energy-saving effect, and can be widely used in cold areas in north.
Description
Technical Field
The utility model relates to an air conditioner field, in particular to high-efficient ultra-low temperature heat pump secondary air jet system.
Background
At present, the temperature range of the operating environment of a common air source heat pump unit is generally-7-43 ℃, but in northern areas with cold climate, the existing air source heat pump can not work normally. Therefore, the popularization and the application of the air source heat pump in the northern market are limited to a great extent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-efficient ultra-low temperature heat pump secondary air jet system, novel structure, very big improvement the normal operating temperature scope of compressor, the system is reliable and stable, and energy-conserving effect is obvious.
The technical scheme of the utility model is that: a high-efficiency ultralow-temperature heat pump secondary air injection device is arranged between a compressor and a liquid storage tank of a heat pump, wherein the heat pump is provided with the compressor, a condenser, the liquid storage tank, a thermal expansion valve, an evaporator and a gas-liquid separator which are sequentially connected and form a loop; the liquid storage tank is connected with the economizer in series through the first solenoid valve and the capillary in sequence, the liquid storage tank is connected with the economizer in series through the second solenoid valve and the injection expansion valve in sequence, and the economizer is connected with the compressor.
Preferably, the compressor is provided with an air make-up inlet, and the economizer is connected to the air make-up inlet of the compressor.
Preferably, the economizer adopts a double-circuit plate type heat exchanger, one end of one circuit of the plate type heat exchanger is respectively connected with the injection expansion valve and the capillary, the other end of the one circuit of the plate type heat exchanger is connected with the air supply inlet of the compressor, and the two ends of the other circuit of the plate type heat exchanger are respectively connected with the liquid storage tank and the thermal expansion valve.
Preferably, a four-way valve is connected to an exhaust port of the compressor, the compressor is connected to the condenser through the four-way valve, the evaporator is connected to a gas-liquid separator through the four-way valve, and the gas-liquid separator is connected to a return port of the compressor.
The utility model has the advantages that:
the high-efficiency ultralow-temperature heat pump secondary air injection device is arranged between the compressor and the liquid storage tank of the heat pump, so that the normal operating temperature range of the compressor is greatly improved, the compressor can be ensured to normally work at the temperature of more than-30 ℃, and the normal heating of the heat pump is realized; the heat pump unit has stable operation, good reliability and ideal energy-saving effect, and can be widely applied to northern cold areas.
Drawings
Fig. 1 is a schematic view of the operation principle of a heat pump unit with a secondary air injection device.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The specific implementation manner of the utility model is as shown in fig. 1, a high-efficient ultralow temperature heat pump secondary air injection device sets up between compressor 1 and the liquid storage pot 3 of heat pump, compressor 1, condenser 2, liquid storage pot 3, thermal expansion valve 4, evaporimeter 5 and vapour and liquid separator 6 that the heat pump has link to each other in proper order and form the return circuit, the secondary air injection device between compressor 1 and liquid storage pot 3 includes economic ware 7, first solenoid valve 8, capillary 15, second solenoid valve 9 and jet expansion valve 16, wherein, capillary 15 is the throttling element; the liquid storage tank 3 is connected with the economizer 7 in series through a first solenoid valve 8 and a capillary 15 in sequence, the liquid storage tank 3 is also connected with the economizer 7 in series through a second solenoid valve 9 and a jet expansion valve 16 in sequence, and the economizer 7 is connected with the compressor 1.
In this embodiment, the compressor 1 is provided with a make-up air inlet VI, and the economizer 7 is connected to the make-up air inlet VI of the compressor 1. The economizer 7 adopts a double-circuit plate type heat exchanger, one end of one circuit of the plate type heat exchanger is simultaneously connected with the capillary tube 15 and the injection expansion valve 16, the other end of the one circuit is connected with the air supplement inlet VI of the compressor 1, and the two ends of the other circuit are respectively connected with the liquid storage tank 3 and the thermal expansion valve 4. A four-way valve 10 is connected to an exhaust port D of the compressor 1, the compressor 1 is connected to the condenser 2 through the four-way valve 10, and the evaporator 5 is connected to a gas-liquid separator 6 through the four-way valve 10, the gas-liquid separator 6 being connected to a return port S of the compressor 1. A first visual pipe 12 and a second visual pipe 13 for observation are arranged outside the compressor 1 and the gas-liquid separator 6; a sight glass 11 is arranged between the economizer 7 and the liquid storage tank 3; the heat pump unit is provided with a plurality of pressure detection ports 14. When the first injection by the injection expansion valve 16 is insufficient, the first solenoid valve 8 is opened and the second capillary injection is continued by the capillary tube 15, thereby controlling the discharge temperature of the compressor 1.
The high-efficiency ultralow-temperature heat pump secondary air injection device of the embodiment has the working principle as follows:
(1) the compressor 1 works to generate a high-temperature and high-pressure refrigerant, the refrigerant enters the condenser 2 through the exhaust port D of the compressor 1 and the four-way valve 10 to exchange heat, is converted into a medium-temperature and high-pressure liquid, is discharged from the condenser 2, and enters the liquid storage tank 3.
(2) The refrigerant from the liquid storage tank 3 passes through the sight glass 11, then passes through the economizer 7 for heat exchange, flows to the thermostatic expansion valve 4, then enters the evaporator 5, and finally flows back to the air return port S of the compressor 1 through the gas-liquid separator 6.
(3) When the pressure in the compressor 1 is insufficient, the first electromagnetic valve 8 can throttle redundant refrigerants; after passing through the second electromagnetic valve 9, the refrigerant is throttled and injected by the injection expansion valve 16 to be converted into high-temperature low-pressure gas, a small amount of liquid is mixed in the gas, the gas is further subjected to heat exchange by the economizer 7, and the gas is completely converted into gas, and finally enters the gas supplementing inlet VI of the compressor 1 for supplementing gas. When the first injection by the injection expansion valve 16 is insufficient, the first solenoid valve 8 is opened and the second capillary injection is continued by the capillary tube 15, thereby controlling the discharge temperature of the compressor 1.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the right of the present invention should not be limited thereby, and therefore, the scope of the present invention is covered by the claims.
Claims (4)
1. The utility model provides a high-efficient ultra-low temperature heat pump secondary air jet equipment, sets up between the compressor of heat pump and liquid storage pot, compressor, condenser, liquid storage pot, thermal expansion valve, evaporimeter and vapour and liquid separator that the heat pump has connect gradually and form the return circuit, secondary air jet equipment's characterized in that: the device comprises an economizer, a first electromagnetic valve, a capillary tube, a second electromagnetic valve and a jet expansion valve; wherein,
the liquid storage tank is connected with the economizer in series through the first solenoid valve and the capillary in sequence, the liquid storage tank is connected with the economizer in series through the second solenoid valve and the injection expansion valve in sequence, and the economizer is connected with the compressor.
2. The high efficiency ultra-low temperature heat pump secondary air injection device of claim 1, characterized in that: the compressor is provided with an air supply inlet, and the economizer is connected to the air supply inlet of the compressor.
3. The high efficiency ultra-low temperature heat pump secondary air injection device of claim 2, characterized in that: the economizer adopts a double-loop plate type heat exchanger, one end of one loop of the plate type heat exchanger is respectively connected with the injection expansion valve and the capillary, the other end of the loop is connected with the air supplement inlet of the compressor, and the two ends of the other loop are respectively connected with the liquid storage tank and the thermostatic expansion valve.
4. A high efficiency ultra-low temperature heat pump secondary air injection device according to any one of claims 1 to 3, characterized in that: the exhaust port of the compressor is connected with a four-way valve, the compressor is connected with the condenser through the four-way valve, the evaporator is connected with a gas-liquid separator through the four-way valve, and the gas-liquid separator is connected to the air return port of the compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201583589U CN202083150U (en) | 2011-05-18 | 2011-05-18 | Secondary air injection device of efficient ultralow-temperature heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201583589U CN202083150U (en) | 2011-05-18 | 2011-05-18 | Secondary air injection device of efficient ultralow-temperature heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202083150U true CN202083150U (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201583589U Expired - Lifetime CN202083150U (en) | 2011-05-18 | 2011-05-18 | Secondary air injection device of efficient ultralow-temperature heat pump |
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| CN (1) | CN202083150U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307866A (en) * | 2013-06-05 | 2013-09-18 | 广州德能热源设备有限公司 | High-temperature heat pump drying unit for heat recovery and automatic dehumidification |
| CN105972717A (en) * | 2016-05-11 | 2016-09-28 | 珠海格力电器股份有限公司 | Multi-split air conditioning system and control method thereof |
| CN108151213A (en) * | 2017-12-25 | 2018-06-12 | 广东美的制冷设备有限公司 | Air conditioner, progress control method and computer readable storage medium |
-
2011
- 2011-05-18 CN CN2011201583589U patent/CN202083150U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307866A (en) * | 2013-06-05 | 2013-09-18 | 广州德能热源设备有限公司 | High-temperature heat pump drying unit for heat recovery and automatic dehumidification |
| CN105972717A (en) * | 2016-05-11 | 2016-09-28 | 珠海格力电器股份有限公司 | Multi-split air conditioning system and control method thereof |
| CN105972717B (en) * | 2016-05-11 | 2018-11-02 | 珠海格力电器股份有限公司 | Multi-split air conditioning system and control method thereof |
| CN108151213A (en) * | 2017-12-25 | 2018-06-12 | 广东美的制冷设备有限公司 | Air conditioner, progress control method and computer readable storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Secondary air injection device of efficient ultralow-temperature heat pump Effective date of registration: 20141022 Granted publication date: 20111221 Pledgee: Industrial Bank, Limited by Share Ltd, Guangzhou, Haizhu branch Pledgor: Guangzhou Deron Heat Source Facilities Co., Ltd. Registration number: 2014990000884 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |