CN201297719Y - Tandem shock refrigeration device of refrigeration water cooling unit at chilled water side - Google Patents
Tandem shock refrigeration device of refrigeration water cooling unit at chilled water side Download PDFInfo
- Publication number
- CN201297719Y CN201297719Y CNU2008202019318U CN200820201931U CN201297719Y CN 201297719 Y CN201297719 Y CN 201297719Y CN U2008202019318 U CNU2008202019318 U CN U2008202019318U CN 200820201931 U CN200820201931 U CN 200820201931U CN 201297719 Y CN201297719 Y CN 201297719Y
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- chilled water
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- pipe
- chilled
- chilling units
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Abstract
The utility model relates to a tandem shock refrigeration device of a refrigeration water cooling unit at a chilled water side, which is characterized by comprising a water cooling unit (1) at a high temperature side, a water cooling unit (2) at a low temperature side, an intermediate pipe (3), a chilled water supply pipe (4) and a chilled water return pipe (5); the chilled water return pipe (5) is connected with a water inlet end (11-1) of an evaporator (11) of the water cooling unit (1) at the high temperature side; a water outlet end (11-2) of the evaporator (11) of the water cooling unit (1) at the high temperature side is connected with a water inlet end (21-1) of an evaporator (21) of the water cooling unit (2) at the low temperature side by the intermediate pipe (3); and a water outlet end (21-2) of the evaporator (21) of the water cooling unit (2) at the low temperature side is connected with the chilled water supply pipe (4). By reducing the temperature for two times, the water supply temperature difference is greatly increased, and the higher evaporation temperature can be set, thereby the utility model greatly improves the running efficiency of the chilled water unit at the high temperature side, basically has no influence on the efficiency of the chilled water unit at the low temperature side and improves the efficiency of the chilled water units by 11 percent.
Description
Technical field
The utility model relates to the big temperature difference cooling apparatus of refrigeration handpiece Water Chilling Units chilled water side tandem, is a kind of efficient cooling apparatus that big temperature difference chilled water can be provided.Service central air-conditioning cooling equipment technical field.
Background technology
At present, in central air conditioner system, standard chilled water supply and return water temperature is 7 ℃～12 ℃, the temperature difference is 5 ℃, the chilled water system conveying energy consumption accounts for 15～20% of system's total energy consumption, therefore, reduce the technology of water system conveying energy consumption and paid attention to widely, as variable frequency adjustment, multistage pump system, big temperature difference technology etc.Wherein the big temperature difference technology of chilled water (greater than 5 ℃) can reduce the circulating frozen water yield significantly, is the most effective means of saving chilled water conveying energy consumption and chilled water system investment.Yet the freezing temperature extent is subject to the service requirement of handpiece Water Chilling Units simultaneously again.Because discharge reduces, the handpiece Water Chilling Units evaporimeter coefficient of heat transfer descends, and the logarithm heat transfer temperature difference increases, thereby changes evaporating temperature, influence the handpiece Water Chilling Units coefficient of performance, and stable, security all can obviously reduce, and the handpiece Water Chilling Units energy consumption is about 60% of system energy consumption.Therefore, in the practical engineering application process, the chilled water temperature difference generally can only have increasing slightly, as the big temperature difference system of 7 ℃～14 ℃, 6 ℃～13 ℃, 6 ℃～14 ℃ of supply and return water temperatures, in limited reduction chilled water conveying energy consumption, cause the handpiece Water Chilling Units energy consumption significantly to increase.
Summary of the invention
The purpose of this utility model, be in order to overcome that existing big temperature difference chilled water induction system is subjected to the strictness restriction of cold water unit operation requirement and the shortcoming that causes the handpiece Water Chilling Units energy consumption significantly to increase provides a kind of refrigeration handpiece Water Chilling Units chilled water side tandem big temperature difference cooling apparatus.This cooling apparatus has solved big temperature difference chilled water induction system and limited by the strictness of cold water unit operation requirement, has improved the handpiece Water Chilling Units operational efficiency.
The purpose of this utility model can reach by following technical solution:
The big temperature difference cooling apparatus of refrigeration handpiece Water Chilling Units chilled water side tandem, its design feature is: comprise high temperature side handpiece Water Chilling Units, low temperature side handpiece Water Chilling Units, middle pipe arrangement, chilled water feed pipe and chilled water return pipe; The chilled water return pipe is connected with the water inlet end of the evaporimeter of high temperature side handpiece Water Chilling Units, the water side of the evaporimeter of high temperature side handpiece Water Chilling Units is connected by the water inlet end of middle pipe arrangement with the evaporimeter of low temperature side handpiece Water Chilling Units, and the water side of the evaporimeter of low temperature side handpiece Water Chilling Units is connected with the chilled water feed pipe.
In the practical application, chilled water backwater (high temperature) in the cold supply system is by chilled water return pipe flow through successively high temperature side handpiece Water Chilling Units evaporimeter, middle pipe arrangement, low temperature side handpiece Water Chilling Units evaporimeter, enter the chilled water feed pipe after reducing temperature, low-temperature receiver (low temperature) is provided.
The purpose of this utility model can also reach by following technical solution:
A kind of embodiment of the present utility model is: can be respectively equipped with thermometer on the pipeline of middle pipe arrangement, chilled water feed pipe and chilled water return pipe, pipe arrangement in the middle of wherein one of thermometer is arranged on, two of thermometer is arranged on the chilled water feed pipe, and three of thermometer is arranged on the chilled water return pipe.
A kind of embodiment of the present utility model is: can be respectively equipped with blowoff valve on the pipeline of middle pipe arrangement, chilled water feed pipe and chilled water return pipe, wherein, pipe arrangement in the middle of one of blowoff valve is arranged on, two of blowoff valve is arranged on the chilled water feed pipe, and three of blowoff valve is arranged on the chilled water return pipe.
A kind of embodiment of the present utility model is: can be respectively equipped with Pressure gauge on the pipeline of middle pipe arrangement, chilled water feed pipe and chilled water return pipe, wherein, pipe arrangement in the middle of one of Pressure gauge is arranged on, two of Pressure gauge is arranged on the chilled water feed pipe, and three of Pressure gauge is arranged on the chilled water return pipe.
A kind of embodiment of the present utility model is: can be provided with water flow switch on the pipeline of chilled water feed pipe.
A kind of embodiment of the present utility model is: can be respectively equipped with butterfly valve on the pipeline of chilled water feed pipe and chilled water return pipe, wherein, one of butterfly valve is arranged on the chilled water feed pipe, and two of butterfly valve is arranged on the chilled water return pipe; Between chilled water feed pipe and chilled water return pipe, be provided with by-passing valve.
The beneficial effects of the utility model are:
The utility model passes through in twice cooling of chilled water, and its supply backwater temperature difference strengthens greatly, as adopting 7 ℃～17 ℃, 6 ℃～18 ℃ big temperature difference even bigger, the chilled water conveying energy consumption is obviously reduced.Simultaneously, the logarithm heat transfer temperature difference of high temperature side handpiece Water Chilling Units strengthens, and can set higher evaporating temperature, has improved the operational efficiency of high temperature side handpiece Water Chilling Units greatly, and the low temperature side chiller efficiency does not have influence substantially.By above technical scheme, solved big temperature difference chilled water induction system and limited by the strictness of cold water unit operation requirement, improved handpiece Water Chilling Units operational efficiency about 11%.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
The specific embodiment
Specific embodiment:
With reference to Fig. 1, present embodiment comprises high temperature side handpiece Water Chilling Units 1, low temperature side handpiece Water Chilling Units 2, middle pipe arrangement 3, chilled water feed pipe 4 and chilled water return pipe 5; Described chilled water return pipe 5 is connected with the water inlet end 11-1 of the evaporimeter 11 of described high temperature side handpiece Water Chilling Units 1, the water side 11-2 of the evaporimeter 11 of described high temperature side handpiece Water Chilling Units 1 is connected by the water inlet end 21-1 of middle pipe arrangement 3 with the evaporimeter 21 of low temperature side handpiece Water Chilling Units 2, and the water side 21-2 of the evaporimeter 21 of low temperature side handpiece Water Chilling Units 2 is connected with chilled water feed pipe 4.
In the present embodiment, on the pipeline of middle pipe arrangement 3, chilled water feed pipe 4 and chilled water return pipe 5, be equipped with thermometer 6.Thermometer 6 is used for monitoring system Inlet and outlet water temperature.On the pipeline of middle pipe arrangement 3, chilled water feed pipe 4 and chilled water return pipe 5, be equipped with blowoff valve 7.Blowoff valve 7 is used for system's flushing debugging and the timely foreign material of getting rid of pipe-line system of running.On the pipeline of middle pipe arrangement 3, chilled water feed pipe 4 and chilled water return pipe 5, be equipped with Pressure gauge 8.Pressure gauge 10 is used for monitoring system pressure.Also be provided with water flow switch 9 on the pipeline of chilled water feed pipe 4.The effect of water flow switch 9 is that not have chilled water flow out-of-date when system, in time sends the high low temperature side handpiece Water Chilling Units of signal at stop, guarantees unit safety.Be equipped with butterfly valve 10 on the pipeline of described chilled water feed pipe 4 and chilled water return pipe 5, be provided with by-passing valve 11 between chilled water feed pipe 4 and the chilled water return pipe 5.Butterfly valve 11 and by-passing valve 5 are used for the switched system bypass.
Operation principle:
Chilled water backwater (high temperature) in the cold supply system is by chilled water return pipe flow through successively high temperature side handpiece Water Chilling Units evaporimeter, middle pipe arrangement, low temperature side handpiece Water Chilling Units evaporimeter, enters the chilled water feed pipe after reducing temperature, and low-temperature receiver (low temperature) is provided.Chilled water is by twice cooling, and its supply backwater temperature difference strengthens greatly, as adopting 7 ℃～17 ℃, 6 ℃～18 ℃ big temperature difference even bigger, the chilled water conveying energy consumption is obviously reduced.Simultaneously, the logarithm heat transfer temperature difference of high temperature side handpiece Water Chilling Units strengthens, and can set higher evaporating temperature, has improved the operational efficiency of high temperature side handpiece Water Chilling Units greatly, and the low temperature side chiller efficiency does not have influence substantially.By above technical scheme, solved big temperature difference chilled water induction system and limited by the strictness of cold water unit operation requirement, improved handpiece Water Chilling Units operational efficiency about 11%.
Claims (6)
1, the big temperature difference cooling apparatus of refrigeration handpiece Water Chilling Units chilled water side tandem is characterized in that: comprise high temperature side handpiece Water Chilling Units (1), low temperature side handpiece Water Chilling Units (2), middle pipe arrangement (3), chilled water feed pipe (4) and chilled water return pipe (5); Chilled water return pipe (5) is connected with the water inlet end (11-1) of the evaporimeter (11) of high temperature side handpiece Water Chilling Units (1), the water side (11-2) of the evaporimeter (11) of high temperature side handpiece Water Chilling Units (1) is connected by the water inlet end (21-1) of middle pipe arrangement (3) with the evaporimeter (21) of low temperature side handpiece Water Chilling Units (2), and the water side (21-2) of the evaporimeter (21) of low temperature side handpiece Water Chilling Units (2) is connected with chilled water feed pipe (4).
2, the big temperature difference cooling apparatus of refrigeration handpiece Water Chilling Units chilled water side tandem according to claim 1, it is characterized in that: on the pipeline of middle pipe arrangement (3), chilled water feed pipe (4) and chilled water return pipe (5), be respectively equipped with thermometer (6), pipe arrangement (3) in the middle of wherein one of thermometer is arranged on, two of thermometer is arranged on chilled water feed pipe (4), and three of thermometer is arranged on chilled water return pipe (5).
3, the big temperature difference cooling apparatus of refrigeration handpiece Water Chilling Units chilled water side tandem according to claim 1, it is characterized in that: on the pipeline of middle pipe arrangement (3), chilled water feed pipe (4) and chilled water return pipe (5), be respectively equipped with blowoff valve (7), wherein, pipe arrangement (3) in the middle of one of blowoff valve is arranged on, two of blowoff valve is arranged on chilled water feed pipe (4), and three of blowoff valve is arranged on chilled water return pipe (5).
4, the big temperature difference cooling apparatus of refrigeration handpiece Water Chilling Units chilled water side tandem according to claim 1, it is characterized in that: on the pipeline of middle pipe arrangement (3), chilled water feed pipe (4) and chilled water return pipe (5), be respectively equipped with Pressure gauge (8), wherein, pipe arrangement (3) in the middle of one of Pressure gauge is arranged on, two of Pressure gauge is arranged on chilled water feed pipe (4), and three of Pressure gauge is arranged on chilled water return pipe (5).
5, the big temperature difference cooling apparatus of refrigeration handpiece Water Chilling Units chilled water side tandem according to claim 1 is characterized in that: be provided with water flow switch (9) on the pipeline of chilled water feed pipe (4).
6, the big temperature difference cooling apparatus of refrigeration handpiece Water Chilling Units chilled water side tandem according to claim 1, it is characterized in that: on the pipeline of chilled water feed pipe (4) and chilled water return pipe (5), be respectively equipped with butterfly valve (10), wherein, one of butterfly valve is arranged on chilled water feed pipe (4), and two of butterfly valve is arranged on chilled water return pipe (5); Between chilled water feed pipe (4) and chilled water return pipe (5), be provided with by-passing valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202019318U CN201297719Y (en) | 2008-10-16 | 2008-10-16 | Tandem shock refrigeration device of refrigeration water cooling unit at chilled water side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202019318U CN201297719Y (en) | 2008-10-16 | 2008-10-16 | Tandem shock refrigeration device of refrigeration water cooling unit at chilled water side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297719Y true CN201297719Y (en) | 2009-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202019318U Expired - Lifetime CN201297719Y (en) | 2008-10-16 | 2008-10-16 | Tandem shock refrigeration device of refrigeration water cooling unit at chilled water side |
Country Status (1)
| Country | Link |
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| CN (1) | CN201297719Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080856A (en) * | 2010-12-08 | 2011-06-01 | 海尔集团公司 | Heat exchange system and central air-conditioning system and heat exchange method thereof |
| CN104315633A (en) * | 2014-10-21 | 2015-01-28 | 东南大学 | Water chiller unit, operating method and refrigerant for air-conditioner refrigeration field |
| CN105222241A (en) * | 2015-11-04 | 2016-01-06 | 杭州绿程节能科技有限公司 | Two low-temperature receiver four-pipe system air-conditioning system |
| CN105240958A (en) * | 2015-11-04 | 2016-01-13 | 杭州绿程节能科技有限公司 | Dual-cold-source three-pipe-system air conditioner system |
| CN105258247A (en) * | 2015-11-04 | 2016-01-20 | 杭州绿程节能科技有限公司 | Double-cold-source two-pipe-system air conditioning system |
| CN107401853A (en) * | 2017-09-01 | 2017-11-28 | 四川省宜宾惠美线业有限责任公司 | A kind of refrigeration unit cold control system |
| CN110243035A (en) * | 2019-06-06 | 2019-09-17 | 深圳市云科设计咨询服务有限公司 | A kind of warm and humid sub-control air-conditioning system of the big temperature difference of multi-freezing pipe |
-
2008
- 2008-10-16 CN CNU2008202019318U patent/CN201297719Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080856A (en) * | 2010-12-08 | 2011-06-01 | 海尔集团公司 | Heat exchange system and central air-conditioning system and heat exchange method thereof |
| CN104315633A (en) * | 2014-10-21 | 2015-01-28 | 东南大学 | Water chiller unit, operating method and refrigerant for air-conditioner refrigeration field |
| CN104315633B (en) * | 2014-10-21 | 2017-04-05 | 东南大学 | For the handpiece Water Chilling Units in air conditioner refrigerating field, method of work and cold-producing medium |
| CN105222241A (en) * | 2015-11-04 | 2016-01-06 | 杭州绿程节能科技有限公司 | Two low-temperature receiver four-pipe system air-conditioning system |
| CN105240958A (en) * | 2015-11-04 | 2016-01-13 | 杭州绿程节能科技有限公司 | Dual-cold-source three-pipe-system air conditioner system |
| CN105258247A (en) * | 2015-11-04 | 2016-01-20 | 杭州绿程节能科技有限公司 | Double-cold-source two-pipe-system air conditioning system |
| CN105240958B (en) * | 2015-11-04 | 2017-10-17 | 杭州绿程节能科技有限公司 | Double control air-conditioning systems of low-temperature receiver three |
| CN105258247B (en) * | 2015-11-04 | 2018-02-27 | 杭州绿程节能科技有限公司 | Double low-temperature receiver two pipes system air-conditioning systems |
| CN105222241B (en) * | 2015-11-04 | 2018-03-27 | 杭州绿程节能科技有限公司 | Double low-temperature receiver four-pipe system air-conditioning systems |
| CN107401853A (en) * | 2017-09-01 | 2017-11-28 | 四川省宜宾惠美线业有限责任公司 | A kind of refrigeration unit cold control system |
| CN110243035A (en) * | 2019-06-06 | 2019-09-17 | 深圳市云科设计咨询服务有限公司 | A kind of warm and humid sub-control air-conditioning system of the big temperature difference of multi-freezing pipe |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090826 |
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| CX01 | Expiry of patent term |