CN103954082A - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
- Publication number
- CN103954082A CN103954082A CN201410199464.XA CN201410199464A CN103954082A CN 103954082 A CN103954082 A CN 103954082A CN 201410199464 A CN201410199464 A CN 201410199464A CN 103954082 A CN103954082 A CN 103954082A
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- heat exchanger
- outdoor heat
- port
- check valve
- throttling
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000005057 refrigeration Methods 0.000 claims abstract description 7
- 230000008676 import Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 abstract description 13
- 238000010257 thawing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002349 favourable effect Effects 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
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides an air conditioning system, which comprises a throttling guide assembly, a throttling guide assembly and a control assembly, wherein the throttling guide assembly is arranged between an indoor heat exchanger and an outdoor heat exchanger and controls high-temperature gaseous refrigerant to selectively distribute the refrigerant under circulation in different modes and enter different heat exchangers; during refrigeration, the throttling guide assembly enables the refrigerant to sequentially pass through the first outdoor heat exchanger and the second outdoor heat exchanger and then is throttled; during heating, the throttling guide assembly enables the refrigerant to be shunted, one part of the refrigerant enters the first outdoor heat exchanger, the other part of the refrigerant enters the second outdoor heat exchanger, and finally all the refrigerant enters the first outdoor heat exchanger; a first port of the first outdoor heat exchanger is communicated with the compressor, and a second port of the first outdoor heat exchanger is communicated with the throttling guide assembly; and the first port and the second port of the second outdoor heat exchanger are communicated with the throttling guide assembly, and the second port of the second outdoor heat exchanger is simultaneously connected to a pipeline between the compressor and the indoor heat exchanger. The problem of frosting during heating is solved.
Description
Technical field
The present invention relates to field of air conditioning, especially, relate to a kind of air-conditioning system.
Background technology
Defrosting is the comparatively serious problem that current heat pump machine faces.Frosting affects the stable operation of air-conditioning; Conventional Defrost mode, for switching refrigeration mode, stops inner blower, and indoor temperature declines, and users'comfort is had to very large impact.System orientation, can reduce frosting, optimize defrosting effect is very important art designs.
Improve heat pump machine technology and generally have both direction: accelerate molten frost for one; Another one reduces frosting exactly.By improving the hydrophily of heat exchanger fin, improve the methods such as heat exchanger heat exchange area and all can reduce frosting degree.But further design may just need to increase external heat source (bypass defrosting, return-air heating).
Summary of the invention
The object of the invention is to provide a kind of air-conditioning system, the technical problem of frosting while heating to solve.
For achieving the above object, the invention provides a kind of air-conditioning system, comprise connected successively compressor, indoor heat exchanger and outdoor heat exchanger; Outdoor heat exchanger comprises the first outdoor heat exchanger and the second outdoor heat exchanger; Also comprise throttling guidance set, be arranged between indoor heat exchanger and outdoor heat exchanger, throttling guidance set is controlled high-temperature gas cold-producing medium and optionally carry out the distribution of cold-producing medium under different mode circulation, enters different heat exchangers; During refrigeration, throttling guidance set makes cold-producing medium successively by the first outdoor heat exchanger and the then throttling of the second outdoor heat exchanger; While heating, throttling guidance set makes cold-producing medium shunting, and a part enters the first outdoor heat exchanger, and a part enters the second outdoor heat exchanger, and final ownership cryogen enters the first outdoor heat exchanger; The first port of the first outdoor heat exchanger is connected with compressor, and the second port of the first outdoor heat exchanger is connected with throttling guidance set; The first port of the second outdoor heat exchanger and the second port are all connected with throttling guidance set, and the second port of the second outdoor heat exchanger is connected on the pipeline between compressor and indoor heat exchanger simultaneously.
Further, throttling guidance set comprises the first check valve, the second check valve the 3rd check valve, the 4th check valve, the 5th check valve and restricting element; Throttling guidance set enters in the first outdoor heat exchanger or the second outdoor heat exchanger by the first branch road, and the cold-producing medium that throttling guidance set is controlled after throttling cooling enters in the second outdoor heat exchanger or the first outdoor heat exchanger by the second branch road; The import of the 4th check valve is connected with the first port of indoor heat exchanger; The outlet of the 4th check valve is connected with the first branch road and the second branch road respectively.
Further, on the first branch road, be disposed with restricting element and the first check valve.
Further, the second port of the second outdoor heat exchanger is connected on the pipeline between compressor and indoor heat exchanger and is provided with magnetic valve.
Further, the first port of the second outdoor heat exchanger and the second port are by the 3rd check valve one-way conduction.
Further, the second port of the first outdoor heat exchanger and the second port of the second outdoor heat exchanger are by the second check valve one-way conduction.
Further, the first port of the second outdoor heat exchanger and the first port of indoor heat exchanger are connected and pass through the 5th check valve one-way conduction.
Further, between the first port of the second outdoor heat exchanger and the import of the 5th check valve, be provided with restricting element.
The present invention has following beneficial effect:
The invention provides a kind of air-conditioning system, outdoor heat exchanger is divided into two parts, by throttling guidance set, make heat pump type air conditioner when operation heats, improve the Temperature Distribution of the heat exchanger surface of frosting, when realizing frosting, heat exchanger heats defrosting.Realize sustainable heating.Reduce defrost number of times.Both guarantee indoor comfort, also improved the heat exchange amount under machine system low temperature condition.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to air-conditioning system of the present invention;
Fig. 2 is the heating operation schematic diagram according to air-conditioning system of the present invention; And
Fig. 3 is the refrigerating operaton schematic diagram according to air-conditioning system of the present invention.
Reference numeral in accompanying drawing is as follows: 10, compressor; 20, indoor heat exchanger; 30, outdoor heat exchanger; 31, the first outdoor heat exchanger; 32, the second outdoor heat exchanger; 41, the first check valve; 42, the second check valve; 43, the 3rd check valve; 44, the 4th check valve; 45, the 5th check valve; 46, restricting element; 50, magnetic valve.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Referring to Fig. 1 to Fig. 3, according to air-conditioning system of the present invention, comprise connected successively compressor 10, indoor heat exchanger 20 and outdoor heat exchanger 30; Outdoor heat exchanger 30 comprises the first outdoor heat exchanger 31 and the second outdoor heat exchanger 32; 2 to 3 U pipes of the super cooled sect of outdoor heat exchanger 30 are separable into the second outdoor heat exchanger 32 of heating part in the present invention _.Also comprise throttling guidance set, be arranged between indoor heat exchanger 20 and outdoor heat exchanger 30, throttling guidance set is controlled high-temperature gas cold-producing medium and is entered in the first outdoor heat exchanger 31 and the second outdoor heat exchanger 32 by the first branch road direction; Or control cold-producing medium and by the second branch road, enter the cold-producing medium that converges again indoor heat exchanger part after the second outdoor heat exchanger 32 and enter in the first outdoor heat exchanger 31; The first port of the first outdoor heat exchanger 31 is connected with compressor 10, and the second port of the first outdoor heat exchanger 31 is connected with throttling guidance set; The first port of the second outdoor heat exchanger 32 and the second port are all connected with throttling guidance set, and the second port of the second outdoor heat exchanger 32 is connected on the pipeline between compressor 10 and indoor heat exchanger 20 simultaneously.Air-conditioning system is divided into two parts by outdoor heat exchanger, to entering the refrigerant flow direction of outdoor heat exchanger 30, controls, and realizes the heat exchange area difference of freezing, heat heat exchanger in situation, and the function of realization is also different.By throttling guidance set, make heat pump type air conditioner when operation heats, improve frosting environment, when realizing frosting, heat exchanger heats defrosting.Realize sustainable heating.Reduce defrost number of times.Both guarantee indoor comfort, also improved the heat exchange amount under machine system low temperature condition.
Referring to Fig. 1 to Fig. 3, throttling guidance set comprises the first check valve 41, the second check valve 42 the 3rd check valve 43, the 4th check valve 44, the 5th check valve 45 and restricting element 46; The first check valve 41 is connected between restricting element and outdoor heat exchanger 30 top outlets; The second check valve 42 is connected between outdoor heat exchanger 30 top outlets and outdoor heat exchanger 30 lower part outlets.Between the 3rd check valve 43 connections and outdoor heat exchanger 30 lower inlet and lower part outlet.The second check valve 42 and the 3rd check valve 43 parallel joins are in the exit of outdoor heat exchanger 30 bottoms.The 4th check valve 44 is connected between indoor heat exchanger 20 and outdoor heat exchanger 30 lower inlet.Restricting element 46 is connected between the 4th check valve 44 and the first check valve 41.The outlet that the 5th check valve 45 is connected between restricting element 46 and indoor heat exchanger 20 and direction and the 4th check valve 44 are rightabout and the 5th check valve 45 is connected to the import department of the 4th check valve 44.The import of the 4th check valve 44 is connected with the first port of indoor heat exchanger 20; The outlet of the 4th check valve 44 is connected with the first branch road and the second branch road respectively.On the first branch road, be disposed with restricting element 46 and the first check valve 41.The second port of the second outdoor heat exchanger 32 is connected on the pipeline between compressor 10 and indoor heat exchanger 20 and is provided with magnetic valve 50.The first port of the second outdoor heat exchanger 32 and the second port are by the 3rd check valve 43 one-way conductions.The second port of the second port of the first outdoor heat exchanger 31 and the second outdoor heat exchanger 32 passes through the second check valve 42 one-way conductions.The first port of the second outdoor heat exchanger 32 is connected with the first port of indoor heat exchanger 20 and passes through the 5th check valve 45 one-way conductions.Between the first port of the second outdoor heat exchanger 32 and the import of the 5th check valve 45, be provided with restricting element 46.
Throttling guidance set of the present invention, has realized: the cold-producing medium that enters outdoor heat exchanger 30 while heating is divided into two parts, and a part is high-temperature gas cold-producing medium, and a part is the cold-producing medium after throttling cooling.Low-temperature refrigerant evaporates on the top of heat exchanger and absorbs atmosphere heat.Water in air runs into heat exchanger upper face cryogenic temperature condensation Cheng Shui, and temperature is formed frost at heat exchanger surface water after further reducing; But, because high temperature refrigerant is passed into heat exchanger bottom-heated heat exchanger, allow heat heat from the bottom up.Due to the existence of this part high-temperature heat-exchanging, heat exchanger top frosting degree is reduced.Heat of high temperature can heat defrosting always.In frosting also in defrosting.Described high-temperature exhaust air is by bypass solenoid valve 50, to pass into outdoor heat exchanger 30 bottoms to heat.
Referring to Fig. 1 to Fig. 3, outdoor heat exchanger 30 is divided into two parts, the respectively corresponding export and import of every part.Outdoor heat exchanger 30 upper inlet are communicated with compressor.Outdoor heat exchanger 30 lower part outlets are communicated with bypass branch road, are connected with compressor air-discharging end.On this branch road, magnetic valve 50 is controlled and is cut-off.Referring to Fig. 2, during heating mode operation, reduce frosting degree, realize the sustainable circulation that heats.Magnetic valve 50 conductings, cross valve is in heating mode.
Cold-producing medium out flows to indoor heat exchanger 20 through cross valve from exhaust outlet of compressor, before entering indoor heat exchanger 20, cold-producing medium is entered in the bottom U pipe of outdoor heat exchanger 30 by 50 minutes part of refrigerant of bypass solenoid valve, heat of high temperature heats this part heat exchanger, and heat up transmits from bottom along outdoor heat exchanger 30 bottoms.Enter the part heating clamber inner room of indoor heat exchanger 20, this part cold-producing medium converges before restricting element 46 with the cold-producing medium of bypass heat release after the 4th check valve 44 subsequently.Be passed subsequently the first check valve 41 importing outdoor heat exchanger 30 tops and complete cold-producing medium heating process---evaporation process.Gaseous refrigerant after heating enters compressor.Under this pattern, the second check valve 42, the 3rd check valve 43, the 5th check valve 45 are in blocking state.
Referring to Fig. 3, under refrigeration mode, outdoor heat exchanger is whole for heat exchange, does not affect heat exchange area.Magnetic valve 50 cuts out, and cross valve switches to refrigeration mode.
High-temperature high-pressure refrigerant gaseous state is discharged and is entered outdoor heat exchanger 30 upper spaces and carry out heat exchange by cross valve from compressor, and the cold-producing medium after cooling enters the cold heat release of the outdoor heat exchanger 30 further mistake in bottom by the second check valve 42.Through restricting element 46, carry out reducing pressure by regulating flow subsequently, by the 5th check valve 45, be directed to indoor set and carry out endothermic process---evaporation process.Absorb room heat, reduce room temperature.Cold-producing medium is got back to compressor and is completed circulation subsequently.Under this pattern, the first check valve 41, the 3rd check valve 43, the 4th check valve 44 are in blocking state.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
The invention provides a kind of air-conditioning system, the cold-producing medium that enters outdoor heat exchanger is divided into two parts according to stream under different mode, by throttling guidance set, make heat pump type air conditioner when operation heats, improve frosting environment, when realizing frosting, heat exchanger heats defrosting.Realize sustainable heating.Reduce defrost number of times.Both guarantee indoor comfort, also improved the heat exchange amount under machine system low temperature condition.The present invention proposes the outer machine frosting degree of the favourable minimizing of connected mode of heat exchanger.During on kind of refrigeration cycle, do not affect heat exchanger area.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an air-conditioning system, is characterized in that, comprises connected successively compressor (10), indoor heat exchanger (20) and outdoor heat exchanger (30);
Described outdoor heat exchanger (30) comprises the first outdoor heat exchanger (31) and the second outdoor heat exchanger (32);
Also comprise throttling guidance set, be arranged between described indoor heat exchanger (20) and described outdoor heat exchanger (30), described throttling guidance set is controlled high-temperature gas cold-producing medium and optionally carry out the distribution of cold-producing medium under different mode circulation, enters different heat exchangers; During refrigeration, described throttling guidance set makes cold-producing medium successively by described the first outdoor heat exchanger (31) and then throttling of described the second outdoor heat exchanger (32); While heating, throttling guidance set makes cold-producing medium shunting, and a part enters described the first outdoor heat exchanger (31), and a part enters described the second outdoor heat exchanger (32), and final ownership cryogen enters described the first outdoor heat exchanger (31);
The first port of described the first outdoor heat exchanger (31) is connected with described compressor (10), and the second port of described the first outdoor heat exchanger (31) is connected with described throttling guidance set;
The first port of described the second outdoor heat exchanger (32) and the second port are all connected with described throttling guidance set, and the second port of described the second outdoor heat exchanger (32) is connected on the pipeline between described compressor (10) and described indoor heat exchanger (20) simultaneously.
2. air-conditioning system according to claim 1, is characterized in that,
Described throttling guidance set comprises the first check valve (41), the second check valve (42) the 3rd check valve (43), the 4th check valve (44), the 5th check valve (45) and restricting element (46);
Described throttling guidance set enters in described the first outdoor heat exchanger (31) or described the second outdoor heat exchanger (32) by the first branch road, and the cold-producing medium that described throttling guidance set is controlled after throttling cooling enters in described the second outdoor heat exchanger (32) or described the first outdoor heat exchanger (31) by the second branch road;
The import of described the 4th check valve (44) is connected with the first port of described indoor heat exchanger (20); The outlet of described the 4th check valve (44) is connected with the first branch road and described the second branch road respectively.
3. air-conditioning system according to claim 2, is characterized in that,
On described the first branch road, be disposed with described restricting element (46) and described the first check valve (41).
4. air-conditioning system according to claim 2, is characterized in that,
The second port of described the second outdoor heat exchanger (32) is connected on the pipeline between described compressor (10) and described indoor heat exchanger (20) and is provided with magnetic valve (50).
5. air-conditioning system according to claim 2, is characterized in that,
The first port of described the second outdoor heat exchanger (32) and the second port are by described the 3rd check valve (43) one-way conduction.
6. air-conditioning system according to claim 2, is characterized in that,
The second port of the second port of described the first outdoor heat exchanger (31) and described the second outdoor heat exchanger (32) is by described the second check valve (42) one-way conduction.
7. air-conditioning system according to claim 6, is characterized in that,
The first port of described the second outdoor heat exchanger (32) is connected with the first port of described indoor heat exchanger (20) and passes through described the 5th check valve (45) one-way conduction.
8. air-conditioning system according to claim 7, is characterized in that,
Between the import of the first port of described the second outdoor heat exchanger (32) and described the 5th check valve (45), be provided with restricting element (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199464.XA CN103954082B (en) | 2014-05-12 | 2014-05-12 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199464.XA CN103954082B (en) | 2014-05-12 | 2014-05-12 | Air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103954082A true CN103954082A (en) | 2014-07-30 |
| CN103954082B CN103954082B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410199464.XA Active CN103954082B (en) | 2014-05-12 | 2014-05-12 | Air conditioning system |
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| Country | Link |
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| CN (1) | CN103954082B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333642A (en) * | 2014-08-07 | 2016-02-17 | 广州市华德工业有限公司 | Cold and heat type heat pump system |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743156A (en) * | 2014-01-06 | 2014-04-23 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat pump system |
| CN103759456A (en) * | 2014-01-27 | 2014-04-30 | 平武臣 | Heat exchange system of air conditioner or heat pump and defrosting method of heat exchange system |
| CN103954072A (en) * | 2014-03-20 | 2014-07-30 | 广东美的暖通设备有限公司 | Air-cooled heat pump unit |
| CN203837349U (en) * | 2014-05-12 | 2014-09-17 | 珠海格力电器股份有限公司 | Air conditioning system |
-
2014
- 2014-05-12 CN CN201410199464.XA patent/CN103954082B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743156A (en) * | 2014-01-06 | 2014-04-23 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat pump system |
| CN103759456A (en) * | 2014-01-27 | 2014-04-30 | 平武臣 | Heat exchange system of air conditioner or heat pump and defrosting method of heat exchange system |
| CN103954072A (en) * | 2014-03-20 | 2014-07-30 | 广东美的暖通设备有限公司 | Air-cooled heat pump unit |
| CN203837349U (en) * | 2014-05-12 | 2014-09-17 | 珠海格力电器股份有限公司 | Air conditioning system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333642A (en) * | 2014-08-07 | 2016-02-17 | 广州市华德工业有限公司 | Cold and heat type heat pump system |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103954082B (en) | 2017-01-25 |
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