CN208901671U - A kind of low-temperature air source heat pump unit - Google Patents
A kind of low-temperature air source heat pump unit Download PDFInfo
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- CN208901671U CN208901671U CN201821430065.XU CN201821430065U CN208901671U CN 208901671 U CN208901671 U CN 208901671U CN 201821430065 U CN201821430065 U CN 201821430065U CN 208901671 U CN208901671 U CN 208901671U
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- valve
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- expansion valve
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- side heat
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- 238000010438 heat treatment Methods 0.000 claims abstract description 43
- 239000003507 refrigerant Substances 0.000 claims abstract description 39
- 238000005057 refrigeration Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 6
- 230000001502 supplementing effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims 1
- 238000004781 supercooling Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a kind of low-temperature air source heat pump units, include compressor, four-way reversing valve, water-side heat, first filter, compensator, heating expansion valve, the first check valve, economizer, tonifying Qi expansion valve, refrigeration expansion valve, second one-way valve, the second filter, air-side heat exchanger and gas-liquid separator.A kind of low-temperature air source heat pump unit of the utility model, heating and refrigeration cycle are all made of economizer supercooling and Gas-supplying enthalpy-increasing circuit, will be heated using check valve parallel connection heating, refrigerant-expansion valve module and the refrigerant flow of refrigeration separates；So that unit is adapted to broader operating ambient temperature range, heating and refrigeration while reaching efficient, reliable and stable.
Description
Technical field
The utility model relates to heat pump air conditioner field, specifically a kind of low-temperature air source heat pump unit.
Background technique
The world today, energy conservation have become national governments' focus of attention with environmental issue.Heating mould based on fire coal
Negative effect brought by formula does not adapt to the requirement of social sustainable development increasingly.Air source heat pump with its particular advantages at
For the one kind being most widely used in many patterns of heat pump, but constraint of its application by weather conditions.Work as environment temperature
When lower than -10 DEG C, in actual use, can generate following problems: 1) heating capacity gradually declines with the decline of environment temperature
Subtract.With the reduction of environment temperature, evaporating temperature declines therewith, and refrigerant suction specific volume increases, under compressor air suction amount is rapid
Drop is not able to satisfy indoor maximum Heating Load to reduce the heating capacity of heat pump system.And (room is warm for institute's calorific requirement at this time
Load) but risen rapidly with the decline of environment temperature, therefore the heating capacity of system will not be able to satisfy Heating Load demand.
At low ambient temperatures, 2) the problems such as pressure of inspiration(Pi) is low, circulating mass of refrigerant is small, compression ratio is big, delivery temperature is high, transports unit
Capable reliability reduces.Hot pump in low temp comes into being, it can reliably be heated under -25 DEG C or more of environment.
Currently, economizer and gas tonifying branch is usually arranged in conventional cryogenic air source heat pump unit, economy is utilized in heating
Device is subcooled, and tonifying Qi is delivered to compressor, so that widening unit application low temperature environment range and improve unit operation can
By property；And in refrigeration, not using economizer supercooling and tonifying Qi circuit, therefore underuse the effect of economizer and tonifying Qi.
In addition, conventional cryogenic air source heat pump generallys use four check valves and a restricting element, or use three check valves and two
A restricting element, system flow is complicated and cold-producing medium stream dynamic resistance is big.
Utility model content
The purpose of this utility model is in view of the above-mentioned problems, providing a kind of low-temperature air source heat pump unit, and realization low temperature surpasses
The heating of low temperature wide temperature environment, high temperature environment refrigerating reach the wide warm area work of air source heat pump, operate reliable, energy-efficient mesh
's.
In order to achieve the above object, the technology employed by the present utility model is
A kind of low-temperature air source heat pump unit, it is characterised in that: including compressor, four-way reversing valve, water-side heat,
There are four the economizers of port, the second mistake for one filter, the first check valve, refrigeration expansion valve, compensator, tonifying Qi expansion valve, tool
Filter, second one-way valve, heating expansion valve, air-side heat exchanger, gas-liquid separator, wherein the refrigerant outlet of compressor passes through
The connection of a port of pipeline and four-way reversing valve, second port of four-way reversing valve pass through pipeline and water-side heat
One refrigerant mouth connection, another refrigerant mouth of water-side heat are connect by pipeline with first filter one end port,
First filter other end port is connect by pipeline with the import of the first check valve, compensator bypass to first filter
With the pipeline between the first check valve, refrigeration expansion valve is gone out by pipeline and the first check valve parallel communication, the first check valve
Mouth is connected with two-way bypass line, wherein bypass line is connected directly to a port of economizer, another way branch all the way
Pipeline is connect with tonifying Qi expansion valve one end port, and tonifying Qi expansion valve other end port passes through the third port of pipeline and economizer
4th port of connection, economizer is connected by the gas supplementing opening of pipeline and compressor, and second port of economizer passes through pipe
The outlet of road and second one-way valve connects, and the import of second one-way valve is connect by pipeline with second filter one end port, makes
Thermal expansion valve is exchanged heat by pipeline and second one-way valve parallel communication, the second filter other end port by pipeline and air side
One refrigerant mouth of device connects, another refrigerant mouth of air-side heat exchanger passes through the 4th of pipeline and four-way reversing valve
Port connection, by pipeline and gas-liquid separator inlet communication, gas-liquid separator is exported again for the third port of four-way reversing valve
It is connected to by pipeline with the refrigerant inlet of compressor.
A kind of low-temperature air source heat pump unit, it is characterised in that: in unit heating, water-side heat is as solidifying
Device heat exchange effect, and air-side heat exchanger is used as evaporator heat exchange；In unit refrigeration, water-side heat is changed as evaporator
Heat is used, and air-side heat exchanger is acted on as condenser heat exchange.
A kind of low-temperature air source heat pump unit, it is characterised in that: the compensator stores refrigerant when heating, and freezes
When discharge refrigerant.
A kind of low-temperature air source heat pump unit, it is characterised in that: the water-side heat be shell and tube exchanger,
Plate heat exchanger, double pipe heat exchanger, any one in coil exchanger refrigerant-refrigerating medium heat exchanger.
A kind of low-temperature air source heat pump unit, it is characterised in that: the heating expansion valve, refrigeration expansion valve and benefit
Gas expansion valve respectively selects heating power expansion valve, electric expansion valve, capillary, any one in restricting orifice respectively.
The utility model is by the first, second check valve of setting and economizer, no matter so that in heating mode or freezing
Under mode, water-side heat or the condensed refrigerant of air-side heat exchanger are all divided into two-way, carried out all the way by economizer
Cold, another way exchanges heat in economizer after the throttling of tonifying Qi expansion valve with preceding refrigerant all the way, sprays into compressor gas supplementing opening later.Such as
This has expanded the application range heated under air source heat pump low temperature or even ultra-low temperature surroundings significantly, promotes its heating under low temperature environment
Energy Efficiency Ratio, while also greatly promoting its refrigeration efficiency ratio.
It is independently arranged heating expansion valve and refrigeration expansion valve in the utility model, is relatively beneficial to heating, refrigeration two states
The accurate adjusting of lower refrigerant flow adapts to system capability under different temperatures working condition and gives full play to, and makes low temperature and ultralow
Unit heat efficiency is substantially improved under warm environment.In addition, whole system is simple and is able to achieve heating, air-conditioning, the multiple function of water heating
Can, and unit is at low cost, practical value is high, and the air source heat pump technology under cold environmental conditions can be made more mature, is society
The valuable energy can be saved.
Detailed description of the invention
Fig. 1 is the pipeline structure schematic diagram of the utility model low-temperature air source heat pump unit.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of low-temperature air source heat pump unit, including compressor 1, four-way reversing valve 2, water-side heat 3,
There are four the warps of port for first filter 41, the first check valve 61, refrigeration expansion valve 71, compensator 5, tonifying Qi expansion valve 72, tool
Help device 8, the second filter 42, second one-way valve 62, heating expansion valve 73, air-side heat exchanger 9, gas-liquid separator 10, wherein
The refrigerant outlet 1a of compressor 1 is connect by pipeline with a port 2a of four-way reversing valve 2, and the of four-way reversing valve 2
Two port 2b are connect by pipeline with a refrigerant mouth of water-side heat 3, another refrigerant mouth of water-side heat 3
It is connect by pipeline with 41 one end port of first filter, 41 other end port of first filter passes through pipeline and the first check valve
61 import connection, the pipeline between 5 bypass of compensator to first filter 41 and the first check valve 61, refrigeration expansion valve
71 by 61 parallel communication of pipeline and the first check valve, and the outlet of the first check valve 61 is connected with two-way bypass line, wherein one
Road bypass line is connected directly to a port 8a of economizer 8, another way bypass line and 72 one end end of tonifying Qi expansion valve
Mouthful connection, 72 other end port of tonifying Qi expansion valve are connect by pipeline with the third port 8c of economizer 8, and the of economizer 8
Four port 8d are connect by pipeline with the gas supplementing opening 1c of compressor 1, and second port 8b of economizer 8 passes through pipeline and second
The outlet of check valve 62 connects, and the import of second one-way valve 62 is connect by pipeline with 42 one end port of the second filter, heats
Expansion valve 73 passes through pipeline and air side by pipeline and 62 parallel communication of second one-way valve, 42 other end port of the second filter
One refrigerant mouth of heat exchanger 9 connects, another refrigerant mouth of air-side heat exchanger 9 passes through pipeline and four-way reversing valve 2
The 4th port 2d connection, the third port 2c of four-way reversing valve 2 by pipeline with gas-liquid separator 10 is interior is connected to, gas-liquid
It is also connected to by pipeline with the refrigerant inlet 1b of compressor 1 in separator 10.
In unit heating, water-side heat 3 is acted on as condenser heat exchange, and air-side heat exchanger is as evaporator heat exchange
With；In unit refrigeration, water-side heat 3 is used as evaporator heat exchange, and air-side heat exchanger 9 is made as condenser heat exchange
With.
Compensator 5 stores refrigerant when heating, and when refrigeration discharges refrigerant.
Water-side heat 3 is shell and tube exchanger, plate heat exchanger, double pipe heat exchanger, any in coil exchanger
A kind of refrigerant-refrigerating medium heat exchanger.
Heat expansion valve 73, refrigeration expansion valve 71 and tonifying Qi expansion valve 72 respectively selects heating power expansion valve, electronics swollen respectively
Swollen valve, capillary, any one in restricting orifice.
The utility model is by compressor 1, four-way reversing valve 2, water-side heat 3, first filter 41, compensator 5, first
Check valve 61, refrigeration expansion valve 71, tonifying Qi expansion valve 72, economizer 8, heating expansion valve 73, second one-way valve 62, second filter
Device 42, air-side heat exchanger 9 and gas-liquid separator 10 are formed by connecting through pipeline.
Compressor 1, four-way reversing valve 2, water-side heat 3, first filter 41, compensator 5, the first check valve 61, warp
Help device 8, heating expansion valve 73, the second filter 42, air-side heat exchanger 9, four-way reversing valve 2, gas-liquid separator 10, compressor
1 composition heating circulation loop；Compressor 1, four-way reversing valve 2, air-side heat exchanger 9, the second filter 42, second one-way valve
62, economizer 8, refrigeration expansion valve 71, compensator 5, first filter 41, water-side heat 3, four-way reversing valve 2, gas-liquid separation
Device 10, compressor 1 form refrigeration cycle；Tonifying Qi expansion valve 72, economizer 8, compressor 1 form tonifying Qi circuit.
The concrete operating principle of the utility model and process are as follows:
Heating mode: refrigerant is discharged from the refrigerant outlet 1a of compressor 1, flows into the port 2a of four-way reversing valve 2,
It is flowed out from the port 2b of four-way reversing valve 2, into water-side heat 3, after then flowing through first filter 41, the first check valve 61
It is divided into two branches, the first branch flows through the port 8c for entering economizer 8 after tonifying Qi expansion valve 72 throttles, from the 8d of economizer 8
Port outflow enters the gas supplementing opening 1c of compressor 1, and second branch flows into the port 8a of economizer 8, from the 8b port flow of economizer 8
Out, the port 2d that heating expansion valve 73, the second filter 42, air-side heat exchanger 9 enter four-way reversing valve 2 is then flowed through, from
The port 2c of four-way reversing valve 2 flows to gas-liquid separator 10, finally flows back to compressor 1, completes a heating circulation.In this mould
Under formula, extra refrigerant in 5 stocking system of compensator realizes the self-balancing of heating process refrigerant.
Refrigeration mode: refrigerant is discharged from the refrigerant outlet 1a of compressor 1, flows into the port 2a of four-way reversing valve 2,
It is flowed out from the port 2d of four-way reversing valve 2, into air-side heat exchanger 9, then flows through the second filter 42, second one-way valve
The port 8b for entering economizer 8 after 62 is divided into two branches after the outflow of the port 8a of economizer 8, and the first branch flows through tonifying Qi
Expansion valve 72 enters the port 8c of economizer 8 after throttling, from the port 8d of economizer 8, outflow enters the gas supplementing opening 1c of compressor 1,
Second branch flows through the port 2b that refrigeration expansion valve 71, first filter 41, water-side heat 3 enter four-way reversing valve 2, from
The port 2c of four-way reversing valve 2 flows to gas-liquid separator 10, finally flows back to compressor 1, completes a refrigeration cycle.In this mould
Under formula, the refrigerant that compensator 5 is stored is discharged into system, realizes the self-balancing of cooling flow refrigerant.
The utility model realizes heating, refrigerant flow is separately adjustable under the two states that freeze, and realizes heating
And the Gas-supplying enthalpy-increasing circulation of refrigeration mode, the application environment temperature range of air source heat pump heating has been expanded, low temperature environment is promoted
Lower unit heating energy efficiency ratio, while its refrigeration efficiency ratio is also greatly promoted, practical value is high.
Embodiment described above is only that the preferred embodiment of this patent is described, not to the utility model
Make the limitation of other forms, any person skilled in the art changed possibly also with the technology contents of the disclosure above or
It is modified as equivalent variations of equivalent embodiments.But it is all without departing from the content of the technical scheme of the utility model, it is practical new according to this
Under the premise of the technical spirit design spirit of type, various changes that those of ordinary skill in the art make the technical solution of this patent
Shape and improvement should all be fallen into the protection scope that patent claims book determines.
Claims (5)
1. a kind of low-temperature air source heat pump unit, it is characterised in that: including compressor, four-way reversing valve, water-side heat, first
There are four the economizers of port, the second filtering for filter, the first check valve, refrigeration expansion valve, compensator, tonifying Qi expansion valve, tool
Device, second one-way valve, heating expansion valve, air-side heat exchanger, gas-liquid separator, wherein the refrigerant outlet of compressor passes through pipe
The connection of a port of road and four-way reversing valve, second port of four-way reversing valve pass through the one of pipeline and water-side heat
A refrigerant mouth connection, another refrigerant mouth of water-side heat are connect by pipeline with first filter one end port, the
One filter other end port is connect by pipeline with the import of the first check valve, compensator bypass to first filter and
Pipeline between first check valve, refrigeration expansion valve pass through pipeline and the first check valve parallel communication, the outlet of the first check valve
It is connected with two-way bypass line, wherein bypass line is connected directly to a port of economizer, another way bypass duct all the way
Road is connect with tonifying Qi expansion valve one end port, and tonifying Qi expansion valve other end port is connected by the third port of pipeline and economizer
It connects, the 4th port of economizer is connected by the gas supplementing opening of pipeline and compressor, and second port of economizer passes through pipeline
It is connect with the outlet of second one-way valve, the import of second one-way valve is connect by pipeline with second filter one end port, is heated
Expansion valve passes through pipeline and air-side heat exchanger by pipeline and second one-way valve parallel communication, the second filter other end port
The connection of a refrigerant mouth, the 4th end that another refrigerant mouth of air-side heat exchanger passes through pipeline and four-way reversing valve
Mouth connection, by pipeline and gas-liquid separator inlet communication, gas-liquid separator outlet leads to again for the third port of four-way reversing valve
Pipeline is crossed to be connected to the refrigerant inlet of compressor.
2. a kind of low-temperature air source heat pump unit according to claim 1, it is characterised in that: in unit heating, water side
Heat exchanger is acted on as condenser heat exchange, and air-side heat exchanger is used as evaporator heat exchange；In unit refrigeration, water-side heat
It is used as evaporator heat exchange, and air-side heat exchanger is acted on as condenser heat exchange.
3. a kind of low-temperature air source heat pump unit according to claim 1, it is characterised in that: the compensator stores up when heating
Deposit refrigerant, when refrigeration discharges refrigerant.
4. a kind of low-temperature air source heat pump unit according to claim 1, it is characterised in that: the water-side heat is shell
Pipe heat exchanger, plate heat exchanger, double pipe heat exchanger, any one in coil exchanger refrigerant-refrigerating medium heat exchanger.
5. a kind of low-temperature air source heat pump unit according to claim 1, it is characterised in that: the heating expansion valve, system
Cold expansion valve and tonifying Qi expansion valve respectively select heating power expansion valve, electric expansion valve, capillary, any in restricting orifice respectively
It is a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821430065.XU CN208901671U (en) | 2018-09-03 | 2018-09-03 | A kind of low-temperature air source heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821430065.XU CN208901671U (en) | 2018-09-03 | 2018-09-03 | A kind of low-temperature air source heat pump unit |
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| Publication Number | Publication Date |
|---|---|
| CN208901671U true CN208901671U (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821430065.XU Expired - Fee Related CN208901671U (en) | 2018-09-03 | 2018-09-03 | A kind of low-temperature air source heat pump unit |
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| Country | Link |
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| CN (1) | CN208901671U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059335A (en) * | 2018-09-03 | 2018-12-21 | 合肥天鹅制冷科技有限公司 | A kind of low-temperature air source heat pump unit |
| CN110160183A (en) * | 2019-05-31 | 2019-08-23 | 天普新能源科技有限公司 | Gas-supplying enthalpy-increasing air source heat pump |
| 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 |
-
2018
- 2018-09-03 CN CN201821430065.XU patent/CN208901671U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059335A (en) * | 2018-09-03 | 2018-12-21 | 合肥天鹅制冷科技有限公司 | A kind of low-temperature air source heat pump unit |
| CN110160183A (en) * | 2019-05-31 | 2019-08-23 | 天普新能源科技有限公司 | Gas-supplying enthalpy-increasing air source heat pump |
| 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 |
| CN110260560B (en) * | 2019-07-19 | 2024-06-11 | 北京金茂绿建科技有限公司 | High-power single-machine two-stage vortex type ultralow-temperature air source heat pump |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 |
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| CF01 | Termination of patent right due to non-payment of annual fee |