CN207702631U - Air conditioner cooling cycle system and air conditioner - Google Patents
Air conditioner cooling cycle system and air conditioner Download PDFInfo
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- CN207702631U CN207702631U CN201721486381.4U CN201721486381U CN207702631U CN 207702631 U CN207702631 U CN 207702631U CN 201721486381 U CN201721486381 U CN 201721486381U CN 207702631 U CN207702631 U CN 207702631U
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- 238000001816 cooling Methods 0.000 title claims abstract description 32
- 239000003570 air Substances 0.000 title 2
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 239000003507 refrigerant Substances 0.000 claims abstract description 44
- 239000002826 coolant Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000005057 refrigeration Methods 0.000 claims description 17
- 238000010257 thawing Methods 0.000 claims description 6
- 238000004378 air conditioning Methods 0.000 claims 1
- 238000009833 condensation Methods 0.000 abstract description 6
- 230000005494 condensation Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
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- 238000009834 vaporization Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004781 supercooling Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000005035 ginseng Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Abstract
The utility model belongs to air conditioner technical field, and in particular to a kind of air conditioner cooling cycle system and air conditioner.In order to improve air conditioner refrigerating circulating effect and reduce energy consumption, the system of the utility model includes the compressor for being connected on major loop, outdoor heat exchanger, first throttling device and indoor heat exchanger, it is also in series with the first gas-liquid separator on the major loop, and bypass circulation is provided between first gas-liquid separator and the compressor；The refrigerant flowed out from the outdoor heat exchanger is after the first throttling device flows into first gas-liquid separator, and gaseous coolant flow to the compressor along the bypass circulation, and liquid refrigerants flow to the indoor heat exchanger along the major loop.The utility model makes the droop loss of gaseous coolant in system small, system energy consumption is reduced, while system return air pressure can be increased, lifting system pressure at expulsion and condensation temperature, to promote refrigerant in the heat convection temperature difference of outdoor heat exchanger, the purpose of lifting system refrigerating capacity is realized.
Description
Technical field
The utility model belongs to air conditioner technical field, and in particular to a kind of air conditioner cooling cycle system and air conditioner.
Background technology
Existing air conditioner cooling cycle system usually forms refrigeration cycle by condenser, throttling set, evaporator, compressor
The high pressure gaseous refrigerant in circuit, compressor discharge condenses into cryogenic high pressure liquid within the condenser, and through throttling set section
Low temperature and low pressure liquid is flowed into, absorbs heat and evaporates subsequently into evaporator, complete refrigeration cycle.
Refrigerant flows in air conditioner cooling cycle system, holds physical characteristic, ginseng with the latent heat of vaporization and constant pressure specific heat
With the heat exchange between environment.The unit mass refrigerating capacity of refrigerant is an important performance feature, it is meant that refrigerant exists
It improves quality to a certain degree more, refrigeration or heating effect are better.For example, under high temperature environment, when refrigerating operaton, if condensation side
Condensing pressure is big, and condensation temperature is high, it is meant that refrigerant and the average convection heat transfer temperature difference of external environment are bigger, it is meant that when cold
One timing of solidifying area and convection transfer rate, refrigerating capacity are bigger.In addition, refrigerant, in heat exchange, 95% or more heat exchange amount is come
Derived from the latent heat of vaporization amount of its two-phase section, and the constant pressure specific heat appearance in unidirectional area's (neat liquid, pure gas) is comparatively small, and heat exchange amount accounts for
The ratio of total system cycle is small.In addition, pressure drop of the gaseous refrigerant in pipeline is big, it is the main source of system circulation crushing,
Circular work amount can be increased, that is, increase the energy consumption of cooling cycle system.
Based on this, the utility model proposes a kind of new cooling cycle systems and air conditioner.
Utility model content
In order to solve the above problem in the prior art, in order to improve air conditioner refrigerating circulating effect and reduce energy consumption, this
Utility model provides a kind of air conditioner cooling cycle system, including is connected on the compressor, outdoor heat exchanger, first segment of major loop
Device and indoor heat exchanger are flowed, the first gas-liquid separator, and first gas-liquid separator are also in series on the major loop
It is provided with bypass circulation between the compressor；The refrigerant flowed out from the outdoor heat exchanger is through the first throttling device stream
After entering first gas-liquid separator, gaseous coolant flow to the compressor along the bypass circulation, and liquid refrigerants is along the master
Circuit flow to the indoor heat exchanger.
In the preferred embodiment of above-mentioned air conditioner cooling cycle system, the air conditioner cooling cycle system further includes hot friendship
Parallel operation, the major loop and the bypass circulation are by the heat exchanger, and the heat exchanger is for making described bypass back
The refrigerant in refrigerant and the major loop in road exchanges heat.
In the preferred embodiment of above-mentioned air conditioner cooling cycle system, by the major loop of the heat exchanger be positioned at
Section between the outdoor heat exchanger outlet and the first throttling device.
In the preferred embodiment of above-mentioned air conditioner cooling cycle system, the second throttling dress is provided on the bypass circulation
It sets, the second throttling device is used to control the gaseous coolant amount into the bypass circulation.
In the preferred embodiment of above-mentioned air conditioner cooling cycle system, the bypass circulation by the heat exchanger is position
Section between the compressor and the second throttling device.
In the preferred embodiment of above-mentioned air conditioner cooling cycle system, the compressor is provided with the second gas-liquid separation
Device, the gaseous coolant through second gas-liquid separator are sucked by the compressor.
The utility model additionally provides a kind of air conditioner, and the air conditioner is equipped with above-mentioned air conditioner cooling cycle system.
In the preferred embodiment of above-mentioned air conditioner, the air conditioner is provided with four-way valve, and the four-way valve is used for
Switch the air conditioner between refrigeration cycle and heating cycle.
In the preferred embodiment of above-mentioned air conditioner, the air conditioner is equipped with above-mentioned air conditioner cooling cycle system；When
When the air conditioner is in heating cycle, the second throttling device is closed.
In the preferred embodiment of above-mentioned air conditioner, the air conditioner further includes being set to the compressor and the room
Bypass defrosting circuit between external heat exchanger, bypass defrosting circuit are provided with third throttling set.
The utility model increases by the first gas-liquid separator in major loop, it is made to form bypass circulation between compressor,
And so that the refrigerant of refrigerant and outdoor heat exchanger end pipeline in bypass circulation is carried out heat exchange by heat exchanger, this practicality is new
Type technical solution has the beneficial effect that：(1) mass dryness fraction of evaporator (indoor heat exchanger) refrigerant, liquid refrigerants pressure drop are lifted into
Small, latent heat of vaporization exchange capability of heat height；(2) gaseous coolant is passed straight back to compressor, and droop loss is small, and (outdoor to condenser
Heat exchanger) end carries out heat exchange can increase the degree of supercooling of condenser, reduce the enthalpy of condensator outlet so that whole refrigeration capacity
Also it is promoted；(3) the direct reflux compressor of gaseous coolant can increase system return air pressure, promote pressure at expulsion, promote condensation
Temperature, to promote the heat convection temperature difference of condenser, lifting system refrigerating capacity.
Description of the drawings
Fig. 1 is the structural schematic diagram of the air conditioner cooling cycle system of the utility model；
Fig. 2 is the heating schematic diagram of the air conditioner of the utility model.
Specific implementation mode
Preferred embodiments of the present invention are described with reference to the accompanying drawings.It should be understood by those skilled in the art that
It is that these embodiments are used only for explaining the technical principle of the utility model, it is not intended that limit the protection of the utility model
Range.
As shown in Figure 1, the air conditioner cooling cycle system of the utility model includes the compressor 1 for being connected on major loop, outdoor
Concatenated first gas-liquid separator 5 on heat exchanger 2, first throttling device 3, indoor heat exchanger 4 and major loop.Wherein, first
Bypass circulation N is provided between gas-liquid separator 5 and compressor 1, the refrigerant flowed out from outdoor heat exchanger 2 is through first throttling device
After 3 flow into the first gas-liquid separator 5, gaseous coolant flow to compressor 1 along bypass circulation N, and liquid refrigerants flow to room along major loop
Interior heat exchanger 2.
Specifically, when refrigeration cycle is run, the high pressure gaseous refrigerant that compressor 1 is discharged reaches outdoor heat exchanger
2 (being at this time condenser) carry out heat exchange, become the liquid refrigerants of medium temperature high pressure.Then, the liquid refrigerants of the medium temperature high pressure from
The outlet of outdoor heat exchanger 2 outflow continues to flow along major loop, and the gas-liquid that low-temp low-pressure is formed after first throttling device 3 is mixed
State refrigerant is closed, the first gas-liquid separator 5 is flowed into.At this point, the gaseous coolant flowed out from the first gas-liquid separator 5 is along bypass circulation N
It is flow to the gas returning port of compressor 1, the liquid refrigerants flowed out from the first gas-liquid separator 5 flow to 4 (this of indoor heat exchanger along major loop
When be evaporator) carry out heat exchange, be evaporated to the gas returning port that compressor 1 is back to after gaseous coolant.It is cold that compressor 1 sucks gaseous state
Matchmaker simultaneously opens next refrigeration cycle.
Described in background technology, the cooling cycle system of the utility model increases the first gas-liquid point in major loop
From device 5, it is set to form bypass circulation N between compressor 1, on the one hand, to improve the mass dryness fraction for getting in 4 refrigerant of heat exchanger
(liquid refrigerants that the first gas-liquid separator 5 is isolated gets in heat exchanger 4), and the pressure drop of liquid refrigerants in the circulating cycle it is small,
Latent heat of vaporization exchange capability of heat is high；On the other hand, the gaseous coolant that the first gas-liquid separator 5 is isolated directly is returned along bypass circulation N
It is flow to compressor 1, is no longer needed to by indoor heat exchanger 4 so that the droop loss of gaseous coolant is small, reduces system energy consumption, simultaneously
System return air pressure, lifting system pressure at expulsion and condensation temperature can be increased, to promoted refrigerant outdoor heat exchanger 1 pair
Heat transfer temperature difference is flowed, realizes the purpose of lifting system refrigerating capacity.
Preferably, it is provided with second throttling device 6 on bypass circulation N, for controlling the gaseous coolant into bypass circulation N
Amount.
In a preferred embodiment, with continued reference to Fig. 1, air conditioner cooling cycle system further includes heat exchanger 7, main
Circuit and bypass circulation N pass through the heat exchanger 7.Specifically, it is to be located outside heat exchanger by the major loop of heat exchanger 7
Section between 2 outlets and first throttling device 3；Bypass circulation N by heat exchanger 7 is to be saved positioned at compressor 1 and second
Flow the section between device 6.That is, when refrigeration cycle is run, along the direction of refrigerant flowing be followed successively by heat exchanger 7 →
3 → the first 7 → compressor of gas-liquid separator 5 → second throttling device, 6 → heat exchanger 1 of first throttling device.
Heat exchanger 7 is used to that the refrigerant in the refrigerant and major loop in bypass circulation N to be made to exchange heat.For example, hot
Exchanger 7 can be that (heat exchanger 7 can also be any other suitable form to a water tank for filling water, and water tank is only to show
Example property explanation), bypass circulation N and major loop pass through the water tank respectively.Specifically, the medium temperature high pressure flowed out from outdoor heat exchanger 2
The water that liquid refrigerants first passes around in the heat exchanger 7, with heat exchanger 7 exchanges heat, then the shape after first throttling device 3
At the gas-liquid mixed state refrigerant of low-temp low-pressure, the first gas-liquid separator 5 is flowed into.At this point, the gas flowed out from the first gas-liquid separator 5
State refrigerant exchanges heat through second throttling device 6 using heat exchanger 7, and with the water in heat exchanger 7.Also it is equivalent to,
Gaseous coolant in bypass circulation N and the medium temperature high-pressure liquid refrigerant progress heat exchange from the outflow of outdoor heat exchanger 2, such one
Come, the degree of supercooling of outdoor heat exchanger 2 can be increased, the enthalpy of outdoor heat exchanger outlet is reduced, to promote entire refrigeration cycle
Refrigerating capacity.
Preferably, compressor 1 is provided with the second gas-liquid separator 11, no matter from bypass circulation N or major loop enters pressure
It after the gaseous coolant of contracting machine 1 first passes around second gas-liquid separator 11, then is sucked by compressor 1, to open subsequent cycle.
In conclusion the cooling cycle system of the utility model has the beneficial effect that：(1) it is (indoor to be lifted into evaporator
Heat exchanger) refrigerant mass dryness fraction, liquid refrigerants pressure drop is small, latent heat of vaporization exchange capability of heat is high；(2) gaseous coolant is passed straight back to compression
Machine, droop loss is small, and can increase the progress heat exchange of condenser (outdoor heat exchanger) end the degree of supercooling of condenser, reduces cold
The enthalpy of condenser outlet so that whole refrigeration capacity is also promoted；(3) the direct reflux compressor of gaseous coolant can increase system
Back pressure promotes pressure at expulsion, promotes condensation temperature, to promote the heat convection temperature difference of condenser, lifting system refrigeration
Amount.
The utility model additionally provides a kind of air conditioner, which is equipped with air conditioner cooling cycle system among the above.
The purpose of above-mentioned air conditioner cooling cycle system is to strengthen refrigerating capacity, and coolant injection amount core is carried out according to high-temperature refrigeration operating condition
It calculates, increases the mass flow and heat exchange amount when refrigeration cycle, and the air conditioner of the utility model is installing above-mentioned refrigeration cycle system
After system, four-way valve can also be set and realize switching of the air conditioner between refrigeration cycle and heating cycle.
Specifically, with reference to Fig. 2, Fig. 2 is the heating schematic diagram of the air conditioner of the utility model.As shown in Fig. 2, in this reality
It applies in example, air conditioner includes cooling cycle system (referring in particular to above description, details are not described herein) and four-way among the above
Valve 8.The switching of refrigeration mode and heating mode may be implemented by four-way valve 8 for air conditioner, show that four-way valve 8 switches in Fig. 2
It is recycled for heating.When air conditioner heat-production is run, second throttling device 6 is closed.This purpose is, due to required strong cold function
Regional (such as Middle East), heating condition is not very severe, thus opposite heating cycle be not required to it is so much, with the first gas-liquid separation
Device 5 is stored, and power consumption improving energy efficiency when heating cycle can be reduced.
Preferably, with continued reference to Fig. 2, air conditioner further includes that the bypass being set between compressor 1 and outdoor heat exchanger 2 is removed
White circuit M, bypass defrosting circuit M are provided with third throttling set 9.When refrigerating/heating is run, third throttling set 9 is closed
It is not involved in refrigerating/heating cycle.When needing defrosting in heating operations, third throttling set 9 is opened, what compressor 1 was discharged
High temperature and pressure refrigerant divides two-way, gets in heat exchanger 4 (being at this time condenser) all the way and carries out heat exchange, heat is brought to interior
Amount, the outdoor heat exchanger 2 (being at this time evaporator) that another way enters frosting by first throttling device 9 defrost, and protect in this way
The continuous operation of heating is demonstrate,proved.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the utility model, still, this
Field technology personnel are it is easily understood that the scope of protection of the utility model is expressly not limited to these specific implementation modes.
Under the premise of the principles of the present invention, those skilled in the art can make the relevant technologies feature equivalent change
Or replace, the technical solution after these changes or replacement is fallen within the scope of protection of the utility model.
Claims (10)
1. a kind of air conditioner cooling cycle system, including be connected on the compressor of major loop, outdoor heat exchanger, first throttling device and
Indoor heat exchanger, which is characterized in that
The first gas-liquid separator is also in series on the major loop, and between first gas-liquid separator and the compressor
It is provided with bypass circulation；
The refrigerant flowed out from the outdoor heat exchanger is after the first throttling device flows into first gas-liquid separator, gaseous state
Refrigerant flow to the compressor along the bypass circulation, and liquid refrigerants flow to the indoor heat exchanger along the major loop.
2. air conditioner cooling cycle system according to claim 1, which is characterized in that the air conditioner cooling cycle system also wraps
Include heat exchanger, the major loop and the bypass circulation by the heat exchanger,
The heat exchanger is used to that the refrigerant in the refrigerant and the major loop in the bypass circulation to be made to exchange heat.
3. air conditioner cooling cycle system according to claim 2, which is characterized in that pass through the major loop of the heat exchanger
For the section between outdoor heat exchanger outlet and the first throttling device.
4. air conditioner cooling cycle system according to claim 3, which is characterized in that be provided with second on the bypass circulation
Throttling set, the second throttling device are used to control the gaseous coolant amount into the bypass circulation.
5. air conditioner cooling cycle system according to claim 4, which is characterized in that returned by the bypass of the heat exchanger
Road is the section between the compressor and the second throttling device.
6. air conditioner cooling cycle system according to any one of claim 1 to 5, which is characterized in that the compressor is set
It is equipped with the second gas-liquid separator, the gaseous coolant through second gas-liquid separator is sucked by the compressor.
7. a kind of air conditioner, which is characterized in that the air conditioner is equipped with air-conditioning system according to any one of claims 1 to 6
SAPMAC method system.
8. air conditioner according to claim 7, which is characterized in that the air conditioner is provided with four-way valve, the four-way valve
For switching the air conditioner between refrigeration cycle and heating cycle.
9. air conditioner according to claim 8, which is characterized in that it is provided with second throttling device on the bypass circulation,
When the air conditioner is in heating cycle, the second throttling device is closed.
10. the air conditioner according to any one of claim 7 to 9, which is characterized in that the air conditioner further includes being set to
Bypass defrosting circuit between the compressor and the outdoor heat exchanger, bypass defrosting circuit are provided with third throttling dress
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721486381.4U CN207702631U (en) | 2017-11-09 | 2017-11-09 | Air conditioner cooling cycle system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721486381.4U CN207702631U (en) | 2017-11-09 | 2017-11-09 | Air conditioner cooling cycle system and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207702631U true CN207702631U (en) | 2018-08-07 |
Family
ID=63022227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721486381.4U Active CN207702631U (en) | 2017-11-09 | 2017-11-09 | Air conditioner cooling cycle system and air conditioner |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763774A (en) * | 2017-11-09 | 2018-03-06 | 青岛海尔空调器有限总公司 | Air conditioner cooling cycle system and air conditioner |
-
2017
- 2017-11-09 CN CN201721486381.4U patent/CN207702631U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763774A (en) * | 2017-11-09 | 2018-03-06 | 青岛海尔空调器有限总公司 | Air conditioner cooling cycle system and air conditioner |
| WO2019091241A1 (en) * | 2017-11-09 | 2019-05-16 | 青岛海尔空调器有限总公司 | Cooling circulation system for air conditioning, and air conditioner |
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