CN201897298U - Air conditioner capable of controlling refrigerant amount in long pipeline - Google Patents
Air conditioner capable of controlling refrigerant amount in long pipeline Download PDFInfo
- Publication number
- CN201897298U CN201897298U CN2010206294909U CN201020629490U CN201897298U CN 201897298 U CN201897298 U CN 201897298U CN 2010206294909 U CN2010206294909 U CN 2010206294909U CN 201020629490 U CN201020629490 U CN 201020629490U CN 201897298 U CN201897298 U CN 201897298U
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- Prior art keywords
- heat exchanger
- air
- communicated
- conditioner
- expansion valve
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Abstract
The utility model discloses an air conditioner capable of controlling the refrigerant amount in a long pipeline, which comprises a compressor, wherein the compressor is communicated with a four-way valve, the four-way valve is communicated with an outdoor heat exchanger, the outdoor heat exchanger is communicated with an electronic expansion valve, the electronic expansion valve is communicated with an indoor heat exchanger, and the indoor heat exchanger is communicated with the four-way valve through an air pipe; and an throttling capillary pipe and a one-way valve connected with the throttling capillary pipe in parallel are arranged on a liquid pipe communicated with the electronic expansion valve and the indoor heat exchanger respectively. During the cooling or the heating process, the liquid pipe is filled with refrigerant in the two-phase state of mixed gas and liquid after restriction, so that the problems that the refrigerant added in the long pipeline of the air conditioner is excessive, and the demands of refrigerant amount added during the cooling or heating process are inconsistent are solved.
Description
Technical field
The utility model relates to a kind of air-conditioner, and off-premises station and indoor set position are far away when being specifically related to a kind of installation, need off-premises station and indoor set be coupled together than long pipe runs, and can control the air-conditioner of refrigerant amount in the long pipe runs.
Background technology
In recent years, a kind of commercial location that is applicable to is made up of indoor set, off-premises station and connecting line, and off-premises station and indoor set position are far away, need the commercial use air conditioner that off-premises station and indoor set couple together be increased gradually than long pipe runs.This class air-conditioner connecting line is longer, the length of the connecting line that has reaches 50m or longer, therefore when mounted, in order to guarantee the normal operation of air-conditioner, a certain amount of cold-producing medium that fills in the air-conditioner when dispatching from the factory, also need when installing between indoor and outdoor machine pipeline length and caliber to append a certain amount of cold-producing medium except air-conditioner.The coolant injection amount just increases greatly in the air-conditioner like this, uses the cost of cold-producing medium to strengthen on the one hand, deposits too much cold-producing medium on the other hand in the air-conditioner in, and the reliability of air-conditioner, security, the feature of environmental protection have all reduced.In order to guarantee air-conditioning system air-conditioner reliability of operation under the maximum cold-producing medium additional quantity situation when the longest inside and outside machine connecting pipings, need to be provided with devices such as gas-liquid separator, reservoir in the air-conditioner.In addition for existing the most general air-conditioner, only throttling arrangement is outdoor: the cold-producing medium of the two-phase state that the refrigerant gas when then freezing after the indoor and outdoor machine connecting line liquid Guan Zhongwei throttling mixes with liquid, at this moment for guaranteeing that air-conditioner effectively moves, the refrigerant amount that pipeline appends between indoor and outdoor machine calculates by the refrigerant amount that holds the two-phase state that mixes with liquid for gas in the pipeline, and it is less that the unit pipe range appends the amount of cold-producing medium; And the cold-producing medium of the pure liquid state of the condensed supercooled state of machine heat exchanger in the indoor and outdoor machine connecting line liquid Guan Zhongwei when heating, at this moment for guaranteeing that air-conditioner effectively moves, the refrigerant amount that pipeline appends between indoor and outdoor machine calculates by holding in the pipeline for pure amount of liquid refrigerant, and the amount of the cold-producing medium that appends in the pipeline is more.Therefore for so long pipe arrangement air-conditioner, freezing is the normal operation of assurance air-conditioner when heating, and the refrigerant amount that need append in the pipeline is inconsistent.And the impossible this point that realizes in the practical operation, usually be demand when heating, append cold-producing medium by more amount, the amount of cold-producing medium seems too much when freezing like this, air conditioner reliability reduces when further causing freezing, and especially moves under some mal-conditions.
The utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of air-conditioner of controlling refrigerant amount in the long pipe runs.
Its technical solution is:
A kind of air-conditioner of controlling refrigerant amount in the long pipe runs, comprise compressor, compressor is connected with cross valve, cross valve is connected with outdoor heat exchanger, outdoor heat exchanger is connected with electric expansion valve, and electric expansion valve is connected with indoor heat exchanger by the liquid pipe, and indoor heat exchanger is connected with cross valve by tracheae, wherein, be communicated with electric expansion valve and be provided with throttle capillary tube and the check valve in parallel with throttle capillary tube with the liquid pipe of indoor heat exchanger.
Useful technique effect of the present utility model is:
The utility model refrigeration is when heating, the cold-producing medium of the full two-phase state that mixes with liquid for the gas after the throttling in the liquid pipe, solved that to append refrigerant amount in the air-conditioner long pipe runs too much, and the refrigeration inconsistent problem of refrigerant amount demand of appending during with heating operation.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and the specific embodiment:
Fig. 1 is a structural principle schematic diagram of the present utility model;
Restriction effect figure when Fig. 2 freezes for the utility model;
Restriction effect figure when Fig. 3 heats for the utility model.
Among the figure, the 1-compressor; The 2-cross valve; The 3-outdoor heat exchanger; The 4-electric expansion valve; 5-liquid pipe; The 6-indoor heat exchanger; The 7-tracheae; The 8-throttle capillary tube; The 9-check valve; The 10-filter; The 11-blower fan; The 12-indoor set; The 13-off-premises station.
The specific embodiment
In conjunction with the accompanying drawings, a kind of air-conditioner of controlling refrigerant amount in the long pipe runs, comprise compressor 1, compressor 1 is connected with cross valve 2, cross valve 2 is connected with outdoor heat exchanger 3, outdoor heat exchanger 3 is connected with electric expansion valve 4, and electric expansion valve 4 is connected with indoor heat exchanger 6 by liquid pipe 5, and indoor heat exchanger 6 is connected with cross valve 2 by tracheae 7.On liquid pipe 5, also be provided with throttle capillary tube 8 and the check valve 9 in parallel with throttle capillary tube 8.
This air-conditioner refrigerating operaton: the high-temperature high-pressure refrigerant gas that the compressor 1 in the off-premises station 13 is discharged was by being condensed into cold refrigerant liquid in the cross valve 2 inlet chamber external heat exchangers 3, enter electric expansion valve 4 throttlings then, the cold-producing medium of the two-phase state that the gas after the throttling mixes with liquid enters indoor set 12 by liquid pipe 5, and the check valve 9 by unidirectional conducting enters evaporation in the indoor heat exchanger 6, gaseous refrigerant after the evaporation is got back to compressor 1 by tracheae 7 and through cross valve 2, finishes once circulation.In kind of refrigeration cycle, throttling is mainly finished by the electric expansion valve in the off-premises station 13 4, and liquid pipe 5 can equivalent have the throttle effect of fraction simultaneously, and the throttle capillary tube 8 in the indoor set 12 is not possessed throttling action by check valve 9 bypass.Air-conditioner can require to regulate electric expansion valve 4 according to its control, and air-conditioner is normally moved.Its restriction effect figure as shown in Figure 2.
The operation of this air conditioner heat-production: the high-temperature high-pressure refrigerant gas that compressor 1 is discharged enters by cross valve 2 and tracheae 7 and was condensed into cold refrigerant liquid in the indoor heat exchanger 6, check valve 9 places in unidirectional conducting end, carry out throttling by throttle capillary tube 8, the cold-producing medium of the two-phase state that the gas after the throttling mixes with liquid enters off-premises station 13 by liquid pipe 5, the further throttling in electric expansion valve 4 places in off-premises station 13, be evaporated to refrigerant gas in the inlet chamber external heat exchanger 3 then, get back to compressor 1 by cross valve 2 at last, finish once heating circulation.In heating circulation, throttling is mainly undertaken by throttle capillary tube 8, and electric expansion valve 4 plays the throttling action of part, and liquid pipe 5 can equivalent have the throttle effect of fraction simultaneously.The length of throttle capillary tube 8 is fixed, and its throttle effect is uncontrollable, and the final suitable throttle effect of air-conditioner is finally regulated by electric expansion valve 4.Air-conditioner requires to regulate electric expansion valve 4 according to its control, reaches final comprehensive throttling action, and air-conditioner is normally moved.Its restriction effect figure as shown in Figure 3.
Above-mentioned refrigeration with heat in the circulation, the cold-producing medium of the full two-phase state that mixes with liquid for the gas after the throttling in the liquid pipe 5, solved like this that to append refrigerant amount in the air-conditioner long pipe runs too much, and the refrigeration inconsistent problem of refrigerant amount demand of appending during with heating operation.
Need to prove, any equivalent way that those skilled in the art have done under the instruction of this specification, or obviously variant all should be in protection domain of the present utility model.
Claims (1)
1. the air-conditioner that can control refrigerant amount in the long pipe runs, comprise compressor, compressor is connected with cross valve, cross valve is connected with outdoor heat exchanger, outdoor heat exchanger is connected with electric expansion valve, electric expansion valve is connected with indoor heat exchanger by the liquid pipe, and indoor heat exchanger is connected with cross valve by tracheae, it is characterized in that: be communicated with electric expansion valve and be provided with throttle capillary tube and the check valve in parallel with throttle capillary tube with the liquid pipe of indoor heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206294909U CN201897298U (en) | 2010-11-29 | 2010-11-29 | Air conditioner capable of controlling refrigerant amount in long pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206294909U CN201897298U (en) | 2010-11-29 | 2010-11-29 | Air conditioner capable of controlling refrigerant amount in long pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201897298U true CN201897298U (en) | 2011-07-13 |
Family
ID=44255205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206294909U Expired - Lifetime CN201897298U (en) | 2010-11-29 | 2010-11-29 | Air conditioner capable of controlling refrigerant amount in long pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201897298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089346A (en) * | 2014-07-07 | 2014-10-08 | 珠海格力电器股份有限公司 | Air conditioner and air conditioner power component cooling method |
| CN109595720A (en) * | 2018-12-11 | 2019-04-09 | 际高科技有限公司 | A kind of multi-connected machine capillary radiation system |
-
2010
- 2010-11-29 CN CN2010206294909U patent/CN201897298U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089346A (en) * | 2014-07-07 | 2014-10-08 | 珠海格力电器股份有限公司 | Air conditioner and air conditioner power component cooling method |
| CN109595720A (en) * | 2018-12-11 | 2019-04-09 | 际高科技有限公司 | A kind of multi-connected machine capillary radiation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110713 |
|
| CX01 | Expiry of patent term |