CN1959304A - Cold and heat circulating device of air conditioner - Google Patents
Cold and heat circulating device of air conditioner Download PDFInfo
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- CN1959304A CN1959304A CN 200510015873 CN200510015873A CN1959304A CN 1959304 A CN1959304 A CN 1959304A CN 200510015873 CN200510015873 CN 200510015873 CN 200510015873 A CN200510015873 A CN 200510015873A CN 1959304 A CN1959304 A CN 1959304A
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- refrigerant
- drying machine
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- expansion valve
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Abstract
A cooling/heating circulation device of air conditioner consists of compressor, dryer set between outdoor heat exchanger and expansion valve, detection valve set on loop between dryer and expansion valve and used for leading refrigerant to pass through dryer when refrigerating operation is on and for blocking refrigerant not to pass through dryer when heating operation is on, by-pass used for connecting loop at expansion valve side of detection valve to loop at outdoor heat exchanger side of dryer.
Description
Technical field
What the present invention related to is air conditioner, the cold and heat circulating device of the air conditioner that has been to use drying machine particularly.
Background technology
Fig. 1 is the cold and heat circulating device connection diagram of prior art air conditioner.
As shown in Figure 1, the cold and hot air conditioner of prior art comprises following 4 parts: compressor 1 is used for compression refrigerant; Outdoor heat exchanger 2 is positioned at a side of compressor 1; Expansion valve 3 is used for refrigerant is reduced pressure, and makes its expansion; Indoor heat exchanger 4, it utilizes the refrigerant of puffing to realize heat exchange with room air.
Be provided with drying machine 5 between outdoor heat exchanger 2 and the expansion valve 3; Drying machine is equipped with molecular sieve 5a for 5 li, makes drying machine 5 can absorb moisture.Therefore, can be dispeled in attached to the moisture on the refrigerant by drying machine 5 inside.
When the cold and hot air conditioner of above-mentioned prior art was used to freeze, refrigerant flow in the outdoor heat exchanger 2 after being compressed by compressor 1; In outdoor heat exchanger 2, compressed refrigerant is removed moisture attached thereto by drying machine 5 time.Refrigerant is depressurized by expansion valve 3 time and expands; Be evaporated at indoor heat exchanger 4 afterwards, after room air is turned cold, flow into again in the compressor 1.Repetitive cycling process of refrigerastion again.
When the cold and hot air conditioner of prior art is used to heat, the compressed machine 1 of refrigerant meeting, indoor heat exchanger 4, expansion valve 3, drying machine 5, the sequential loop of outdoor heat exchanger 2 realizes the effect that heats.
But the cold and heat circulating device of prior art air conditioner heats circulation time, and refrigerant is to pass through drying machine 5 with states liquid and two kinds of form coexistences of gaseous state; The refrigerant of this admixture is faster than the refrigerant flowing velocity of liquid state, and the variation of flowing is more violent, so refrigerant can pour in drying machine 5 inside fast, the wearing and tearing of the molecular sieve 5a of dryer inner is quickened.
Therefore in molecular sieve 5a, the dust that splits away off because of wearing and tearing can be directed in compressor 1 and the expansion valve 3, makes compressor 1 breakage, and then causes expansion valve 3 blocked.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, a kind of wearing and tearing that are used for suppressing the dryer inner molecular sieve are provided, prevent the cold and heat circulating device of air conditioner of the breakage of the compressor that causes because of the molecular sieve wearing and tearing and expansion valve etc.
The technical scheme that solves the problems of the technologies described above is:
A kind of cold and heat circulating device of air conditioner, this cold and heat circulating device includes: compressor is used for compression refrigerant; Outdoor heat exchanger is used to realize the heat exchange with outdoor air; Expansion valve is used for refrigerant is reduced pressure, and makes its expansion; Indoor heat exchanger is used to realize the heat exchange with room air; Remove drying machine attached to moisture on the refrigerant between outdoor heat exchanger and expansion valve, also include and detect valve and bypass; It detects valve, on the loop between drying machine and the expansion valve, when when refrigeration detect valve by refrigerant by drying machine, pass through drying machine and detect valve blocking-up refrigerant when heating; Its bypass is used to connect the loop of outdoor heat exchanger one side of the loop of expansion valve one side that detects valve and drying machine.
Described detection valve has the refrigerant of making to be passed through to expansion valve one side flow from drying machine, also has the structure that the blocking-up refrigerant flows to drying machine from expansion valve simultaneously.
Also be provided with the auxiliary expansion valve that is used to make the refrigerant expansion in the described bypass.
A kind of cold and heat circulating device of air conditioner, this cold and heat circulating device includes: compressor is used for compression refrigerant; Outdoor heat exchanger is used to realize the heat exchange with outdoor air; Expansion valve is used for refrigerant is reduced pressure, and makes its expansion; Indoor heat exchanger is used to realize the heat exchange with room air; Remove drying machine attached to moisture on the refrigerant between indoor heat exchanger and expansion valve, also include and detect valve and bypass; It detects valve, on the loop between drying machine and the expansion valve, when heating, detect valve by refrigerant by drying machine, pass through drying machine and detect valve blocking-up refrigerant during refrigeration; Its bypass is used to connect the loop of indoor heat exchanger one side of the loop of expansion valve one side that detects valve and drying machine.
Described detection valve has the refrigerant of making to be passed through to expansion valve one side flow from drying machine, also has the structure that the blocking-up refrigerant flows to drying machine from expansion valve simultaneously.
Also be provided with the auxiliary expansion valve that is used to make the refrigerant expansion in the described bypass.
The invention has the beneficial effects as follows: the present invention possesses the valve of detection and bypass is arranged, and it detects valve and is positioned between drying machine and the expansion valve; Its bypass is used for connecting the loop of outdoor heat exchanger/indoor heat exchanger one side of the loop of expansion valve one side that detects valve and drying machine, has only liquid refrigerant can pass through drying machine in cyclic process.
The present invention can prevent to flow into drying machine with the refrigerant liquid and coexistence of gaseous state admixture form, can prevent effectively that flowing velocity is fast, flowing changes the wearing and tearing of the refrigerant of violent admixture to the drying machine molecular sieve.Like this, also the breakage of the compressor that causes with regard to the wearing and tearing that effectively prevented because of molecular sieve and the operation troubles of expansion valve have been guaranteed normally carrying out of circulation.
Description of drawings
Fig. 1 is the cold and heat circulating device connection diagram of prior art air conditioner;
Fig. 2 is the cold and heat circulating device connection diagram of air conditioner of the present invention;
Fig. 3 is the structure diagrammatic cross-sectional view of the drying machine that is equipped with of the present invention;
Fig. 4 is other embodiment connection diagram of the cold and heat circulating device of air conditioner of the present invention.
* accompanying drawing major part symbol description *
10: compressor 20: outdoor heat exchanger
30: expansion valve 40: indoor heat exchanger
50: drying machine 53: molecular sieve
60: detect valve 73: bypass
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 2 is the cold and heat circulating device connection diagram of air conditioner of the present invention; Fig. 3 is the structure diagrammatic cross-sectional view of the drying machine that is equipped with of the present invention.
As shown in Figure 2, the cold and heat circulating device of air conditioner of the present invention comprises: compressor 10 is used for compression refrigerant; Outdoor heat exchanger 20 utilizes the refrigerant compressed to realize heat exchange with outdoor air; Expansion valve 30 is used for refrigerant is reduced pressure, and makes its expansion; Indoor heat exchanger 40, it utilizes the refrigerant of puffing to realize heat exchange with room air.And, between outdoor heat exchanger 20 and expansion valve 30, be provided with drying machine 50, be used for absorbing moisture attached on the refrigerant.
The present invention also comprises: detect valve 60, between drying machine 50 and expansion valve 30; Bypass 73 is used for connecting two loops, that is: the loop 72 of outdoor heat exchanger 40 1 sides of the loop 71 of expansion valve 30 1 sides of detection valve 60 and drying machine 50.Limit flowing of refrigerant by detecting valve 60 and bypass 73, make and have only liquid refrigerant can be directed to 50 li in drying machine.And, at 73 li also the same auxiliary expansion valves 80 of bypass, the refrigerant by bypass 73 is reduced pressure just like capillary, make its expansion.
Detecting valve 60 can make the refrigerant that flows to expansion valve 30 from drying machine 50 continue fluidly by expansion valve 30; Can also block refrigerant and flow to drying machine 50 from expansion valve 30, so, just make that also refrigerant could pass through drying machine 50 when only the refrigeration in cyclic process was brought into play effect.
Above-mentioned detection valve 60 and bypass 73 can play a role when heating, and prevent that refrigerant is directed in the drying machine 50.This is because when heating, refrigerant to drying machine 50 1 side flow is keeping gaseous state and the liquid state that mixes coexistence, and it is faster with the refrigerant of gaseous state and liquid mixing coexisting state than the refrigerant flowing velocity of liquid state, the variation of flowing is more violent, when being directed to 50 li in drying machine, can pour in drying machine 50 inside fast, acceleration enters into the wearing and tearing of the molecular sieve 53 of drying machine 50 inside.
Below with reference to Fig. 3 the structure of the drying machine among the present invention is described.Drying machine 50 comprises: parent pipe 51 is the cylindrical shape that connects up and down; Charging valve 52 is inserted in the parent pipe, and the molecular sieve 53 of inside is charged.In charging valve 52 1 sides, net 54 has been installed, and has combined with the gripper shoe 55 of opposite side; Between gripper shoe 55 and charging valve 52, also be provided with leaf spring 56, be used to cushion the pressure that is added in the refrigerant on the gripper shoe 55.
The structure of above-mentioned drying machine 50, when the refrigeration of air conditioner played a role, refrigerant flow into gripper shoe 55 1 sides, and after the moisture of being removed by molecular sieve 53 on it, refrigerant can flow out to net 54 1 sides.
Cold and heat circulating device operation and effect thereof to air conditioner of the present invention describes below.
At first, when air conditioner was in refrigeration mode, in compressor 10, compressed refrigerant was condensed in outdoor heat exchanger, passed through drying machine 50 with the form of liquid state.At this moment, the moisture that adheres on the refrigerant molecular sieve 53 that can be entered into drying machine 50 inside is removed.Afterwards, refrigerant is depressurized in by expansion valve 30 and expands, and then is evaporated in indoor heat exchanger, makes room air cool down.
On the other hand, under the pattern that heats, compressed refrigerant can be condensed in indoor heat exchanger 40 in compressor 10, makes indoor heating; The refrigerant of condensation is by expansion valve 30, is depressurized simultaneously and expands, and forms admixture liquid and that gaseous state coexists.And above-mentioned refrigerant can be to outdoor heat exchanger 20 1 side shiftings, and at this moment, detecting valve 60 can flow to drying machine 50 by the blocking-up refrigerant, and refrigerant also just moves to outdoor heat exchanger 20 by bypass 73 immediately.After the refrigerant that flow into 20 li of outdoor heat exchanger is evaporated, can flow into 10 li on compressor again, repeat above-mentioned process once more.
So just prevented under the pattern that heats, flow into 50 li in drying machine with refrigerant liquid and the gaseous form coexistence, therefore, flowing velocity refrigerant faster, the more violent admixture of variation that flows just can prevent effectively that the molecular sieve 53 of drying machine 50 is worn.Like this, also the breakage of the compressor 10 that causes with regard to the wearing and tearing that effectively prevented because of molecular sieve 53 and the operation troubles of expansion valve 30 have been guaranteed normally carrying out of circulation.
As shown in Figure 4 be another kind of embodiment of the present invention, drying machine is arranged between expansion valve and the indoor heat exchanger, does following detailed description referring now to accompanying drawing 4.
The cold and heat circulating device of air conditioner of the present invention comprises: compressor 10 is used for compression refrigerant; Outdoor heat exchanger 20 utilizes the refrigerant compressed to realize heat exchange with outdoor air; Expansion valve 30 is used for refrigerant is reduced pressure, and makes its expansion; Indoor heat exchanger 40, it utilizes the refrigerant of puffing to realize heat exchange with room air.Between indoor heat exchanger 40 and expansion valve 30, be provided with drying machine 50, be used for absorbing moisture attached on the refrigerant.
At this moment, between drying machine 50 and expansion valve 30, be provided with detection valve 60; Bypass 73 is used for connecting two loops, that is: the loop 72 of indoor heat exchanger 40 1 sides of the loop 71 of expansion valve 30 1 sides of detection valve 60 and drying machine 50.At 73 li also the same auxiliary expansion valves 80 of bypass just like capillary, the refrigerant by bypass 73 is reduced pressure, make its expansion.
Detecting valve 60 can make the refrigerant that flows to expansion valve 30 from drying machine 50 continue to flow and pass through expansion valve 30; Can also block refrigerant and flow to drying machine 50 from expansion valve 30, so, just make that also refrigerant could pass through drying machine 50 when only effect was brought into play in the effect of heating in cyclic process.
Therefore, air conditioner is under heating mode, and refrigerant can be according to compressor 10, indoor heat exchanger 40, and drying machine 50 detects valve 60, expansion valve 30, the order of outdoor heat exchanger 20 flows.
When air conditioner was in refrigeration mode, in compressor 10, compressed refrigerant can be in outdoor heat exchanger 20 be condensed, and the refrigerant of condensation is by expansion valve 30, was depressurized simultaneously and expanded, and formed admixture liquid and that gaseous state coexists.Above-mentioned refrigerant can be to indoor heat exchanger 40 1 side shiftings, and at this moment, detecting valve 60 can flow to drying machine 50 by the blocking-up refrigerant, and refrigerant also just moves to indoor heat exchanger 40 by bypass 73 immediately.
So just prevented under the pattern of refrigeration, flow into 50 li in drying machine with refrigerant liquid and the gaseous form coexistence, therefore, flowing velocity refrigerant faster, the more violent admixture of variation that flows just can prevent effectively that the molecular sieve 53 of drying machine 50 is worn.
Claims (6)
1. the cold and heat circulating device of an air conditioner, this cold and heat circulating device includes: compressor is used for compression refrigerant; Outdoor heat exchanger is used to realize the heat exchange with outdoor air; Expansion valve is used for refrigerant is reduced pressure, and makes its expansion; Indoor heat exchanger is used to realize the heat exchange with room air; Remove drying machine attached to moisture on the refrigerant between outdoor heat exchanger and expansion valve, it is characterized in that, also include and detect valve and bypass; It detects valve, on the loop between drying machine and the expansion valve, when when refrigeration detect valve by refrigerant by drying machine, pass through drying machine and detect valve blocking-up refrigerant when heating; Its bypass is used to connect the loop of outdoor heat exchanger one side of the loop of expansion valve one side that detects valve and drying machine.
2. according to the cold and heat circulating device described in the claim 1, it is characterized in that described detection valve has the refrigerant of making to be passed through to expansion valve one side flow from drying machine, also have the structure that the blocking-up refrigerant flows to drying machine from expansion valve simultaneously.
3. according to the cold and heat circulating device described in the claim 1, it is characterized in that, also be provided with the auxiliary expansion valve that is used to make the refrigerant expansion in the described bypass.
4. the cold and heat circulating device of an air conditioner, this cold and heat circulating device includes: compressor is used for compression refrigerant; Outdoor heat exchanger is used to realize the heat exchange with outdoor air; Expansion valve is used for refrigerant is reduced pressure, and makes its expansion; Indoor heat exchanger is used to realize the heat exchange with room air; Remove drying machine attached to moisture on the refrigerant between indoor heat exchanger and expansion valve, it is characterized in that, also include and detect valve and bypass; It detects valve, on the loop between drying machine and the expansion valve, when heating, detect valve by refrigerant by drying machine, pass through drying machine and detect valve blocking-up refrigerant during refrigeration; Its bypass is used to connect the loop of indoor heat exchanger one side of the loop of expansion valve one side that detects valve and drying machine.
5. according to the cold and heat circulating device described in the claim 4, it is characterized in that described detection valve has the refrigerant of making to be passed through to expansion valve one side flow from drying machine, also have the structure that the blocking-up refrigerant flows to drying machine from expansion valve simultaneously.
6. according to the cold and heat circulating device described in the claim 4, it is characterized in that, also be provided with the auxiliary expansion valve that is used to make the refrigerant expansion in the described bypass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510015873 CN1959304A (en) | 2005-11-03 | 2005-11-03 | Cold and heat circulating device of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510015873 CN1959304A (en) | 2005-11-03 | 2005-11-03 | Cold and heat circulating device of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1959304A true CN1959304A (en) | 2007-05-09 |
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ID=38071118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510015873 Pending CN1959304A (en) | 2005-11-03 | 2005-11-03 | Cold and heat circulating device of air conditioner |
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| Country | Link |
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| CN (1) | CN1959304A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530070A (en) * | 2016-08-04 | 2019-12-03 | 株式会社电装 | Refrigerating circulatory device |
| CN111122644A (en) * | 2020-01-08 | 2020-05-08 | 中建材创新科技研究院有限公司 | System and method for testing cold-hot circulation stability of phase-change material |
-
2005
- 2005-11-03 CN CN 200510015873 patent/CN1959304A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530070A (en) * | 2016-08-04 | 2019-12-03 | 株式会社电装 | Refrigerating circulatory device |
| CN111122644A (en) * | 2020-01-08 | 2020-05-08 | 中建材创新科技研究院有限公司 | System and method for testing cold-hot circulation stability of phase-change material |
| CN111122644B (en) * | 2020-01-08 | 2022-07-08 | 中建材创新科技研究院有限公司 | System and method for testing cold-hot circulation stability of phase-change material |
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