CN103697621B - A kind of multi-connected air conditioner low-temperature heating blood circulation - Google Patents
A kind of multi-connected air conditioner low-temperature heating blood circulation Download PDFInfo
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- CN103697621B CN103697621B CN201210368187.1A CN201210368187A CN103697621B CN 103697621 B CN103697621 B CN 103697621B CN 201210368187 A CN201210368187 A CN 201210368187A CN 103697621 B CN103697621 B CN 103697621B
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Abstract
The present invention provides a kind of multi-connected air conditioner low-temperature heating blood circulation, and including compressor, compressor connects cross valve, cross valve connecting plate type heat exchanger, outdoor heat exchanger and indoor heat exchanger, arranges flow cut-off solenoid valve between exhaust outlet of compressor and cross valve；When outdoor environment temperature is relatively low, by indoor heat exchanger and blood circulation are kept apart, it is prevented effectively from the problem that indoor heat exchanger coolant accumulates so that blood circulation water heating ability when outdoor environment temperature is relatively low significantly improves, it is ensured that hot water used in system supply is sufficient.
Description
Technical field
The present invention relates to a kind of air conditioner circulating system, specifically refer to a kind of low-temperature heating blood circulation suitable in multi-connected air conditioner.
Background technology
Existing multi-functional multiple air-conditioning, except original refrigeration and heat-production functions, adds water heat exchanger equipment, is supplied floor heating or domestic hot-water's use by water heat exchanger hot water preparing, and existing common control mode is as shown in Figure 1.Exhaust solenoid valve 12 is opened, and air inlet electromagnetic valve 11 is closed.Compressor 1 aerofluxus enters plate type heat exchanger 8 by exhaust solenoid valve 12, and by the cooling of current in plate type heat exchanger 8, coolant is condensed into liquid, inlet chamber external heat exchanger 3 after being throttled by outdoor expansion valve 4, after heat in absorption chamber outer air, refrigerant evaporation becomes gas, is sucked by compressor 1.Although indoor set side is not run, indoor expansion valve 6 is crack, has the coolant of trace to enter indoor heat exchanger 5 by cross valve 2, and inlet chamber external heat exchanger 3 after throttling again through outdoor expansion valve 4 is finally sucked by compressor 1.This endless form, when outdoor temperature is relatively low, can be stored in more coolant in indoor set, causes that water heating circulating refrigerant amount is not enough, and water heating ability is greatly reduced.
This multi-functional multiple air-conditioning (such as less than-5 DEG C) when outdoor environment temperature is relatively low, the ability of water heat exchanger hot water preparing can be greatly attenuated, the main cause of decay is to incorporate more coolant in idle room air conditioner, cause that system runs cold medium shortage, but now owing to outdoor environment temperature is relatively low, user also tends to increase hot water and makes consumption, therefore, the phenomenon that appearance system entirety hot water is under-supply occurs, therefore, room air conditioner how is avoided to be stored in too much coolant, solve the problem that during low-temperature heating, refrigerant circulation is not enough, thus ensureing when outdoor environment temperature is relatively low, hot water used in system supply is sufficient, become very crucial technical problem.
Summary of the invention
For the deficiency that prior art exists, the technical problem to be solved is, a kind of multi-connected air conditioner low-temperature heating blood circulation is provided, when outdoor environment temperature is relatively low, by indoor heat exchanger and blood circulation are kept apart, it is prevented effectively from the problem that indoor heat exchanger coolant accumulates so that blood circulation entirety water heating ability when outdoor environment temperature is relatively low significantly improves, it is ensured that system entirety hot water supply is sufficient.
For solving above-mentioned technical problem, the technical solution used in the present invention is, a kind of multi-connected air conditioner low-temperature heating blood circulation, including compressor, compressor connects cross valve, cross valve connecting plate type heat exchanger, outdoor heat exchanger and indoor heat exchanger, it arranges cut-off electromagnetic valve between exhaust outlet of compressor and cross valve.
The above-mentioned multi-connected air conditioner device utilizing hot water defrosting, arranges outdoor expansion valve between its plate type heat exchanger and outdoor heat exchanger.
The above-mentioned multi-connected air conditioner device utilizing hot water defrosting, arranges indoor expansion valve between its plate type heat exchanger and indoor heat exchanger.
The above-mentioned multi-connected air conditioner device utilizing hot water defrosting, its cut-off electromagnetic valve and indoor expansion valve switch gearing.
The above-mentioned multi-connected air conditioner device utilizing hot water defrosting, its plate type heat exchanger connects compressor inlet by air inlet electromagnetic valve, and plate type heat exchanger connects exhaust outlet of compressor by exhaust solenoid valve.
The workflow of the present invention is as follows:
1, first carry out indoor-unit cooling-medium when outdoor environment temperature is relatively low and reclaim control, indoor-unit cooling-medium is all recovered in system.It is as follows that indoor-unit cooling-medium reclaims the entry condition controlled:
(1) operational mode is independent water heating (indoor set does not run)；
(2) outdoor environment temperature <-5 DEG C.
The concrete action that refrigerant recovering controls is as follows: cut-off electromagnetic valve 7 is opened, and indoor expansion valve 6 is fully open, when indoor set liquid pipe temperature > after 40 DEG C, or indoor expansion valve 6 is after fully open five minutes, and indoor expansion valve 6 Close All, cut-off electromagnetic valve 7 is closed.
2, the exit criteria that indoor-unit cooling-medium recovery controls is as follows:
(1) pattern beyond independent water heating is run；
(2) outdoor temperature > 0 DEG C；System high pressure > 3.5MPa.
The invention have the advantages that and Advantageous Effects:
1, by increasing cut-off electromagnetic valve, carry out cut-off electromagnetic valve before independent water heating runs to open, indoor expansion valve standard-sized sheet, indoor-unit cooling-medium is discharged in system, after after operation, cut-off electromagnetic valve is closed, indoor set expansion valve cuts out, and is kept apart indoor set side from blood circulation, it is ensured that major part coolant is involved in system circulation.
2, solving the problem that indoor heat exchanger accumulates coolant so that coolant reasonable distribution, overall circulation system water heating ability under outdoor cryogenic conditions is greatly improved.
3, by increasing the cyclic process within cut-off electromagnetic valve reasonable adjusting air conditioning system, energy-conserving and environment-protective, improve the work efficiency of complete machine.
4, safeguard the stability that complete machine runs, increase the service life, be effectively improved the comfort level that user uses.
Accompanying drawing explanation
Fig. 1 is blood circulation schematic diagram in prior art；
Fig. 2 is the blood circulation schematic diagram of the present invention.
In above-mentioned figure:
1-compressor, 2-cross valve, 3-outdoor heat exchanger, 4-outdoor expansion valve, 5-indoor heat exchanger, 6-indoor expansion valve, 7-cut-off electromagnetic valve, 8-plate type heat exchanger, 11-air inlet electromagnetic valve, 12-exhaust solenoid valve.
Detailed description of the invention
As shown in Figure 2, the multi-connected air conditioner low-temperature heating blood circulation of the present embodiment, including compressor 1, compressor 1 connects cross valve 2, cross valve 2 connecting plate type heat exchanger 8, outdoor heat exchanger 3 and indoor heat exchanger 5, arrange cut-off electromagnetic valve 7 between compressor 1 air vent and cross valve 2, arrange outdoor expansion valve 4 between plate type heat exchanger 8 and outdoor heat exchanger 3, arranging indoor expansion valve 6 between plate type heat exchanger 8 and indoor heat exchanger 5, cut-off electromagnetic valve 7 is Tong Bu with indoor expansion valve 6 switch.Plate type heat exchanger 8 connects compressor 1 air inlet by air inlet electromagnetic valve 11, and plate type heat exchanger 8 connects compressor 1 air vent by exhaust solenoid valve 12.
The workflow of the present embodiment is as follows:
1, first carry out indoor-unit cooling-medium when outdoor environment temperature is relatively low and reclaim control, indoor-unit cooling-medium is all recovered in system.It is as follows that indoor-unit cooling-medium reclaims the entry condition controlled:
(1) operational mode is independent water heating (indoor set does not run)；
(2) outdoor environment temperature <-5 DEG C.
The concrete action that refrigerant recovering controls is as follows: cut-off electromagnetic valve 7 is opened, and indoor expansion valve 6 is fully open, when indoor set liquid pipe temperature > after 40 DEG C, or indoor expansion valve 6 is after fully open five minutes, and indoor expansion valve 6 Close All, cut-off electromagnetic valve 7 is closed.
2, the exit criteria that indoor-unit cooling-medium recovery controls is as follows:
(1) pattern beyond independent water heating is run；
(2) outdoor temperature > 0 DEG C；System high pressure > 3.5MPa.
Carry out cut-off electromagnetic valve 7 before independent water heating runs to open, indoor expansion valve 6 standard-sized sheet, indoor-unit cooling-medium is discharged in system, after after operation, cut-off electromagnetic valve 7 is closed, indoor set expansion valve 6 cuts out, indoor set side is kept apart from blood circulation, it is ensured that major part coolant is involved in system circulation.
The above, be only to presently preferred embodiments of the present invention, is not the restriction that the present invention does other forms, and any those skilled in the art are changed or be modified as the Equivalent embodiments of equivalent variations possibly also with the technology contents of the disclosure above.But, every without departing from the present invention program content, the technical spirit of the foundation present invention, to any simple modification made for any of the above embodiments, equivalent variations and remodeling, still falls within protection scope of the present invention.
Claims (2)
1. a multi-connected air conditioner low-temperature heating blood circulation, including compressor, compressor connects cross valve, cross valve connecting plate type heat exchanger, outdoor heat exchanger and indoor heat exchanger, it is characterised in that: cut-off electromagnetic valve is set between exhaust outlet of compressor and cross valve；Between described plate type heat exchanger and outdoor heat exchanger, outdoor expansion valve is set；Between described plate type heat exchanger and indoor heat exchanger, indoor expansion valve is set；Described cut-off electromagnetic valve and indoor expansion valve switch gearing.
2. multi-connected air conditioner low-temperature heating blood circulation according to claim 1, it is characterised in that: described plate type heat exchanger connects compressor inlet by air inlet electromagnetic valve, and plate type heat exchanger connects exhaust outlet of compressor by exhaust solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210368187.1A CN103697621B (en) | 2012-09-28 | 2012-09-28 | A kind of multi-connected air conditioner low-temperature heating blood circulation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210368187.1A CN103697621B (en) | 2012-09-28 | 2012-09-28 | A kind of multi-connected air conditioner low-temperature heating blood circulation |
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| CN103697621A CN103697621A (en) | 2014-04-02 |
| CN103697621B true CN103697621B (en) | 2016-07-06 |
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| CN201210368187.1A Active CN103697621B (en) | 2012-09-28 | 2012-09-28 | A kind of multi-connected air conditioner low-temperature heating blood circulation |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196693B (en) * | 2016-06-27 | 2020-02-28 | 青岛海尔空调电子有限公司 | Constant temperature defrosting air conditioner |
| CN109442633A (en) * | 2018-10-31 | 2019-03-08 | 青岛海信日立空调系统有限公司 | Air conditioner circulating system and its control method |
| CN110671835B (en) * | 2019-11-11 | 2023-08-01 | 恒量电器(厦门)有限公司 | Integrated supply system and method based on temperature and humidity control and hot water heating |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498521A (en) * | 2009-02-21 | 2009-08-05 | 东莞市康源节能科技有限公司 | Three-purpose heat pump water heating machine with air source |
| CN202853200U (en) * | 2012-09-28 | 2013-04-03 | 青岛海信日立空调系统有限公司 | Multi-connected type air conditioning low-temperature heating circulation system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5892737A (en) * | 1981-11-27 | 1983-06-02 | Hitachi Ltd | Air conditioner with hot water supply and floor heating performance |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498521A (en) * | 2009-02-21 | 2009-08-05 | 东莞市康源节能科技有限公司 | Three-purpose heat pump water heating machine with air source |
| CN202853200U (en) * | 2012-09-28 | 2013-04-03 | 青岛海信日立空调系统有限公司 | Multi-connected type air conditioning low-temperature heating circulation system |
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| CN103697621A (en) | 2014-04-02 |
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