CN203323463U - Multi-water-source-connected air-conditioning system - Google Patents
Multi-water-source-connected air-conditioning system Download PDFInfo
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- CN203323463U CN203323463U CN2013203087370U CN201320308737U CN203323463U CN 203323463 U CN203323463 U CN 203323463U CN 2013203087370 U CN2013203087370 U CN 2013203087370U CN 201320308737 U CN201320308737 U CN 201320308737U CN 203323463 U CN203323463 U CN 203323463U
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- water source
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- side heat
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Abstract
The utility model discloses a multi-water-source-connected air-conditioning system comprising a compressor, an oil separator, a four-way valve, an indoor unit, an expansion valve, a water source side heat exchanger and a gas-liquid separator. Two ends of a pipeline, after in sequential serial connection with the gas-liquid separator, the compressor and the gas-liquid separator, are respectively connected to two opposite valve ports of the four-way valve. Two ends of a pipeline, after in sequential serial connection with the indoor unit, the expansion valve and the water-source heat exchanger, are respectively connected to other two opposite valve ports of the four-way valve. The air-conditioning system further comprises a protective bypass with one end connected between the oil separator and the four-way valve and the other end between the expansion valve and the water source side heat exchanger. The protective bypass is provided with a bypass valve which can be turned on when evaporating temperature of the water source side heat exchanger is lower than cold-resistance temperature of the same. By the aid of the multi-water-source-connected air-conditioning system, the evaporating temperature of the water source side heat exchanger can be effectively prevented from being too low when an air conditioner is used for heating, and accordingly the water source side heat exchanger can be better protected.
Description
Technical field
The utility model relates to air-conditioning technology for producing field, particularly a kind of water source multi-connected air conditioning system.
Background technology
The water source multi-connected air conditioning system is to using water as the multi-gang air conditioner of Cooling and Heat Source, water source side, main frame, indoor, consists of.The water source side is identical with water source heat pump system, adopts water as the energy transportation medium; Indoor is identical with the multi-connected machine system, adopt cold-producing medium as the energy transportation medium, the water source multi-connected air conditioning system successfully combines water source heat pump technology, multi-connected machine technology etc., by high-performance heat exchanger and intermediate medium circulation, utilize the heat energy in the low-grade heat sources such as ocean, soil, industrial waste heat, municipal sewage to carry out refrigeration and heating, greatly saved the energy.
Mainly comprise compressor, oil eliminator, cross valve, indoor set, expansion valve, water source side heat exchanger, gas-liquid separator in current water source multi-connected air conditioning system, as shown in fig. 1, wherein gas-liquid separator 7, compressor 1 and oil eliminator 2 are connected to respectively on two valve ports that cross valve 3 is relative by connect the successively two ends of rear pipeline of pipeline, indoor set 4, expansion valve 5 and water source side heat exchanger 6 are connected to respectively on cross valve 3 two other relative valve ports by the pipeline rear pipeline two ends of connecting successively, two valve ports of cross valve 3 arbitrary neighborhoods all can be realized intercommunication, thereby realize the conversion of air conditioner refrigerating and heat-production functions by the flow direction that changes the pipeline inner refrigerant, in the air-conditioning heating process, the cold-producing medium flowed out in compressor 1 passes through oil eliminator 2 successively, cross valve 3, indoor set 4, expansion valve 5, water source side heat exchanger 6, cross valve 3, gas-liquid separator 7 finally flows back in compressor 1 and carries out the next round circulation, air-conditioning is to extract heat from extraneous water source in the process heated, then by indoor set 4, by dissipation of heat, arrive indoor, be that indoor set 4 is equivalent to condenser, water source side heat exchanger 6 is equivalent to evaporimeter, cold-producing medium is called the evaporating temperature of water source side heat exchanger 6 while being evaporated in water source side heat exchanger 6, the minimum temperature that water source side heat exchanger 6 can bear is called the cold-resistant temperature (the cold-resistant temperature of water source side heat exchanger 6 is generally 0 ℃, the freezing point of water) of water source side heat exchanger 6, in the situation that winter temperature is lower, the evaporating temperature of water source side heat exchanger 6 may be lower than the cold-resistant temperature of water source side heat exchanger 6, low temperature can damage the parts of water source side heat exchanger 6, cause water source side heat exchanger 6 to work.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of water source multi-connected air conditioning system, to realize preventing that in the heating process evaporating temperature of water source side heat exchanger is too low, and the purpose that protection water source side heat exchanger is not damaged by frost.
For solving the problems of the technologies described above, the water source multi-connected air conditioning system that the utility model provides, comprise compressor, oil eliminator, cross valve, indoor set, expansion valve, water source side heat exchanger, gas-liquid separator, wherein gas-liquid separator, compressor and oil eliminator are connected to respectively on two valve ports that cross valve is relative by connect the successively two ends of rear pipeline of pipeline, indoor set, expansion valve and water source side heat exchanger are connected to respectively on two other relative valve port of cross valve by the pipeline rear pipeline two ends of connecting successively, this water source multi-connected air conditioning system also comprises the protection bypass, one of described protection bypass is terminated on described oil eliminator, perhaps between described oil eliminator and described cross valve, perhaps between described compressor and described oil eliminator, the other end is connected between described expansion valve and described water source side heat exchanger, and the by-passing valve of opening while being provided with the cold-resistant temperature that can be less than in the evaporating temperature of described water source side heat exchanger described water source side heat exchanger in described protection bypass.
Preferably, in above-mentioned water source multi-connected air conditioning system, described expansion valve is electric expansion valve.
Preferably, in above-mentioned water source multi-connected air conditioning system, described by-passing valve is plunger valve or stop valve.
Increased the protection bypass in water source provided by the utility model multi-connected air conditioning system on the basis of current water source multi-connected air conditioner as can be seen from the above technical solutions, and one of protection bypass is terminated between oil eliminator and cross valve, the other end is connected between expansion valve and water source side heat exchanger, be provided with by-passing valve in the protection bypass, this by-passing valve can be opened during lower than the cold-resistant temperature of water source side heat exchanger in the evaporating temperature of water source side heat exchanger, the cold-producing medium of the HTHP now flowed out in compressor will directly be mixed with the low-temperature refrigerant flow through by the electric expansion valve place by the protection bypass, the cold-producing medium that temperature after mixing improves is again by water source side heat exchanger heat exchange, this can effectively improve evaporating temperature, prevent that water source side heat exchanger is damaged by frost.
The accompanying drawing explanation
The structural representation that Fig. 1 is water source of the prior art multi-connected air conditioning system;
The structural representation of the water source multi-connected air conditioning system that Fig. 2 provides for the utility model embodiment.
The specific embodiment
The utility model core is to provide a kind of water source multi-connected air conditioning system; this water source multi-connected air conditioning system is by arranging the protection bypass; arranging of bypass of protection can make air-conditioning system when being heated; a part of high-temperature high-pressure refrigerant of being discharged by compressor mixes with the low-temperature refrigerant flow through in expansion valve; mixed cold-producing medium is again by water source side heat exchanger; the evaporating temperature that this can effectively improve water source side heat exchanger, prevent that water source side heat exchanger is damaged by frost because evaporating temperature is too low.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with drawings and embodiments, the utility model is described in further detail.
Please refer to the structural representation of the water source multi-connected air conditioning system that 2, Fig. 2 provides for the utility model embodiment.
Water source provided by the utility model multi-connected air conditioning system comprises compressor 01, oil eliminator 02, cross valve 03, indoor set 04, expansion valve 05, water source side heat exchanger 06, gas-liquid separator 07, wherein gas-liquid separator 07, compressor 01 with oil eliminator 02, by pipeline, connect successively after its two ends be connected to respectively on two valve ports that cross valve 03 is relative, indoor set 04, expansion valve 05 and water source side heat exchanger 06 are connected to respectively on cross valve 03 two other relative valve port by connect the successively two ends of rear pipeline of pipeline, the main improvement of this water source multi-connected air conditioning system is, also comprise protection bypass 08, one of protection bypass 08 is terminated on oil eliminator 02, perhaps on the pipeline between oil eliminator 02 and cross valve 03, perhaps on the pipeline between compressor 01 and oil eliminator 02, the other end is connected on the pipeline between expansion valve 05 and water source side heat exchanger 06, and protection is provided with the by-passing valve 09 that can open during lower than the cold-resistant temperature of water source side heat exchanger 06 in the evaporating temperature of water source side heat exchanger 06 in bypass 08.
The evaporating temperature of the water source side heat exchanger 06 of mentioning in above-described embodiment refers to that air-conditioning system is when being heated, temperature when cold-producing medium is evaporated in water source side heat exchanger 06, the cold-resistant temperature of water source side heat exchanger 06 refers to the minimum temperature that water source side heat exchanger 06 can bear, because water resource heat pump is utilized the heat in water, thereby 0 ℃, the cold-resistant temperature of water source side heat exchanger 06 freezing point that is water, during lower than this temperature, water source side heat exchanger 06 inner surface will freeze and then affect use.
The protection bypass 08 increased in the water source multi-connected air conditioning system provided in above-described embodiment is for the air-conditioning heating pattern, and be that the evaporating temperature of water source side heat exchanger 06 under heating mode just plays a role during lower than the cold-resistant temperature of water source side heat exchanger 06, when air-conditioning system is heated, indoor set 04 is equivalent to condenser, off-premises station (water source side heat exchanger) is equivalent to evaporimeter, when by-passing valve 09 is opened, the circulating path of cold-producing medium under heating mode is not: compressor 01, oil eliminator 02, cross valve 03, indoor set 04, expansion valve 05, water source side heat exchanger 06, cross valve 03, gas-liquid separator 07 is finally got back in compressor 01 and is carried out the next round circulation.
When outdoor temperature is lower and the evaporating temperature of water source side heat exchanger 06 during lower than 0 ℃, water source side heat exchanger 06 will be affected, now open the by-passing valve 09 in protection bypass 08, because an end of protecting bypass 08 is connected with oil eliminator 02, and be the cold-producing medium by the HTHP of compressor 01 discharge by the cold-producing medium of oil eliminator 02, the other end of protection bypass 08 is connected between expansion valve 05 and water source side heat exchanger 06, from the stream heated, this place belongs to the upstream of water source side heat exchanger 06, enter into the arrival end of water source side heat exchanger 06 in low-temperature refrigerant, the cold-producing medium of HTHP will mix with the low-temperature refrigerant come by expansion valve 05 place's stream, the temperature of mixed cold-producing medium is improved, therefore through the water source heat exchanger time, the evaporating temperature of water source heat exchanger 06 also will improve, thereby avoid water source side heat exchanger 06 to be damaged by frost because temperature is too low.
The protection bypass 08 provided in above-described embodiment can be when water source side heat exchanger 06 temperature be low manual unlocking, for further prioritization scheme, the protection bypass 08 of the water source multi-connected air conditioning system provided in the present embodiment can be opened automatically, concrete, one controller be connected with the by-passing valve 09 of protection in bypass 08 is set, certainly this controller can be independent setting, can be also to share a controller with air-conditioner host, controller is built-in with preset temperature, this preset temperature should be not less than the cold-resistant temperature of water source side heat exchanger 06, and then a temperature sensor is set, this temperature sensor is connected with water source side heat exchanger 06 with controller simultaneously, so that the evaporating temperature to water source side heat exchanger 06 is carried out Real-Time Monitoring, and monitored data is sent to controller, controller is to comparing these detection data and preset temperature, when detecting data lower than preset temperature, controlling by-passing valve 09 opens, realize the open-minded of protection bypass 08.
Further, in order to guarantee the safety of water source side heat exchanger 06, the preset temperature in the present embodiment will be higher than the cold-resistant temperature 1-3 ℃ of water source side heat exchanger 06, to avoid when by-passing valve is opened water source side heat exchanger 06, has been subjected to the impact of low temperature.
The preferred electric expansion valve that adopts of the expansion valve 05 adopted in the present embodiment, to have realized the accurate control to liquid supply rate.
By-passing valve 09 has multiple choices equally, and preferred plunger valve or the stop valve of adopting of the by-passing valve 09 in the present embodiment realized bypass function.
Above water source provided by the utility model multi-connected air conditioning system is described in detail.Applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall into the protection domain of the utility model claim.
Claims (3)
1. a water source multi-connected air conditioning system, comprise compressor (01), oil eliminator (02), cross valve (03), indoor set (04), expansion valve (05), water source side heat exchanger (06), gas-liquid separator (07), wherein gas-liquid separator (07), compressor (01) and oil eliminator (02) are connected to respectively on two valve ports that cross valve (03) is relative by connect the successively two ends of rear pipeline of pipeline, indoor set (04), expansion valve (05) and water source side heat exchanger (06) are connected to respectively on two other relative valve port of cross valve (03) by the pipeline rear pipeline two ends of connecting successively, it is characterized in that, also comprise protection bypass (08), one of described protection bypass (08) is terminated on described oil eliminator (02), perhaps between described oil eliminator (02) and described cross valve (03), perhaps between described compressor (01) and described oil eliminator (02), the other end is connected between described expansion valve (05) and described water source side heat exchanger (06), and be provided with the by-passing valve (09) that can open during lower than the cold-resistant temperature of described water source side heat exchanger (06) in the evaporating temperature of described water source side heat exchanger (06) in described protection bypass (08).
2. water source according to claim 1 multi-connected air conditioning system, is characterized in that, described expansion valve (05) is electric expansion valve.
3. water source according to claim 1 multi-connected air conditioning system, is characterized in that, described by-passing valve (09) is plunger valve or stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203087370U CN203323463U (en) | 2013-05-31 | 2013-05-31 | Multi-water-source-connected air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203087370U CN203323463U (en) | 2013-05-31 | 2013-05-31 | Multi-water-source-connected air-conditioning system |
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| Publication Number | Publication Date |
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| CN203323463U true CN203323463U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203087370U Expired - Lifetime CN203323463U (en) | 2013-05-31 | 2013-05-31 | Multi-water-source-connected air-conditioning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307816A (en) * | 2013-05-31 | 2013-09-18 | 深圳麦克维尔空调有限公司 | Water source multi-connected air-conditioning system |
| CN107314568A (en) * | 2017-06-13 | 2017-11-03 | 贾欣 | A kind of direct-expansion type sea water source heat pump/free cold supply, hot systems for ship |
| CN108731294A (en) * | 2018-06-06 | 2018-11-02 | 青岛海尔空调电子有限公司 | Multi-gang air-conditioner and its control method |
-
2013
- 2013-05-31 CN CN2013203087370U patent/CN203323463U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307816A (en) * | 2013-05-31 | 2013-09-18 | 深圳麦克维尔空调有限公司 | Water source multi-connected air-conditioning system |
| CN103307816B (en) * | 2013-05-31 | 2016-02-03 | 深圳麦克维尔空调有限公司 | A kind of water source multi-connected air conditioning system |
| CN107314568A (en) * | 2017-06-13 | 2017-11-03 | 贾欣 | A kind of direct-expansion type sea water source heat pump/free cold supply, hot systems for ship |
| CN107314568B (en) * | 2017-06-13 | 2019-10-11 | 贾欣 | A kind of direct-expansion type sea water source heat pump/free cold supply, hot systems for ship |
| CN108731294A (en) * | 2018-06-06 | 2018-11-02 | 青岛海尔空调电子有限公司 | Multi-gang air-conditioner and its control method |
| WO2019232943A1 (en) * | 2018-06-06 | 2019-12-12 | 青岛海尔空调电子有限公司 | Multiple-unit air conditioner and control method therefor |
| US11480344B2 (en) | 2018-06-06 | 2022-10-25 | Qingdao Haier Air-Conditioning Electronic Co., Ltd. | Multi-split air conditioner and control method therefor |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |