CN203615638U - High-precision industrial water chilling unit - Google Patents

High-precision industrial water chilling unit Download PDF

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Publication number
CN203615638U
CN203615638U CN201320804204.1U CN201320804204U CN203615638U CN 203615638 U CN203615638 U CN 203615638U CN 201320804204 U CN201320804204 U CN 201320804204U CN 203615638 U CN203615638 U CN 203615638U
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CN
China
Prior art keywords
water
cold
refrigeration system
heat exchanger
intermediate heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201320804204.1U
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Chinese (zh)
Inventor
孙青如
卢大民
桂林松
孙清华
何伟生
陈红华
高大胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Heng Biaosirui Refrigerating Machinery Manufacturing Co Ltd
Original Assignee
Nanjing Heng Biaosirui Refrigerating Machinery Manufacturing Co Ltd
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Application filed by Nanjing Heng Biaosirui Refrigerating Machinery Manufacturing Co Ltd filed Critical Nanjing Heng Biaosirui Refrigerating Machinery Manufacturing Co Ltd
Priority to CN201320804204.1U priority Critical patent/CN203615638U/en
Application granted granted Critical
Publication of CN203615638U publication Critical patent/CN203615638U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a high-precision industrial water chilling unit which comprises a refrigeration system, a tee valve, an intermediate heat exchanger, user equipment, a user side cold water circulating pump, a freezing water pump and a cold accumulation tank. The cold accumulation tank is used as a temporary cold accumulation node, the water temperature precision can be controlled within +/- 0.3-0.4 DEG C, the temperature control precision requirement of a laboratory is met, and the high-precision industrial water chilling unit can meet the requirement for high-precision cold water of more than 95% of industrial enterprises.

Description

High accuracy Cool-water Machine for Industry group
Technical field
The utility model relates to a kind of handpiece Water Chilling Units, and particularly a kind of high accuracy Cool-water Machine for Industry group, belongs to field of mechanical technique.
Background technology
Conventional Cool-water Machine for Industry group is supplied water in refrigeration system by chilled water pump, refrigeration system is supplied with Intermediate Heat Exchanger after water is lowered the temperature, the cold water of user's side is by the cold water circulation pump Intermediate Heat Exchanger that supplies water, the water of both sides adopts not contact heat exchange in Intermediate Heat Exchanger, the recirculated water heat exchange of refrigeration system is frozen water pump after heating up again and sucks back, and completes a set of chilled water circulation; After the cold water heat exchange cooling of user's side, supply with user and use, after use, return cold water circulation pump, complete the circulation of a set of user side chilled water system.The cooling-water machine of this mode meets user to controlling the requirement of cold water temperature by start/stop refrigeration system, when the cold water temperature of setting as user reaches, unit need stop the continuation cooling (compressor of refrigeration system stops) of refrigeration system, and when user's water temperature is higher than setting when cold water temperature, need again open refrigeration system (refrigeration system compressor unlatching) and carry out reducing temperature twice, so repeatedly, this process has a problem, in the time that the temperature-controlled precision of customer requirement is higher, need to opens frequently refrigeration system and carry out balancing water temperature.But for compressor, start-stop compressor can reduce service life, increase fault rate frequently, so most industry handpiece Water Chilling Units producer is for avoiding high frequent start-stop to be all provided with the minimum start-stop cycle, even user's water temperature deflects away within the start-stop cycle, also can at once not start the compressor of refrigeration system, so also just cause existing Cool-water Machine for Industry group cannot meet the requirement of user's high accuracy temperature control.
Utility model content
Utility model object: the purpose of this utility model is in order to solve above the deficiencies in the prior art, provides a kind of high accuracy Cool-water Machine for Industry group.
Technical scheme: high accuracy Cool-water Machine for Industry group described in the utility model, its objective is such realization, a kind of high accuracy Cool-water Machine for Industry group, comprise refrigeration system, triple valve, Intermediate Heat Exchanger, subscriber equipment, user side cold water circulation pump, chilled water pump and cold-storage tank, first, second interface of described refrigeration system and triple valve, and Intermediate Heat Exchanger, subscriber equipment form the first water delivery path successively; Described subscriber equipment, user side cold water circulation pump, Intermediate Heat Exchanger, cold-storage tank, chilled water pump, refrigeration system forms the first backwater path successively; Described refrigeration system, triple valve first, the 3rd interface, and cold-storage tank forms the second water delivery path successively; Described cold-storage tank, triple valve the 3rd, the second interface, Intermediate Heat Exchanger, subscriber equipment forms the second water delivery path successively; Described subscriber equipment, user side cold water circulation pump, Intermediate Heat Exchanger, cold-storage tank form the second backwater path successively.
As optimization, described triple valve is electric T-shaped valve.
Operation principle:
When normal operation, the recirculated water of refrigeration system is undertaken and the heat exchange of user's chilled water system by the first water delivery path, after heat exchange, flows back to chilled water pump through the first backwater path and the second backwater path;
When user's set water temperature reaches, refrigeration system continues operation, electric T-shaped valve turns to, connect the second water delivery path, cold water is offered to cold-storage tank (cold-storage tank design temperature is lower than user's design temperature 3-5 degree Celsius), chilled water lower temperature is stored in tank, shuts down again after reaching the design temperature of cold-storage tank;
When user's cold water circulating temperature is higher than design temperature, but compressor is still within the start-stop cycle and cannot start immediately time, can first open chilled water circulating pump, connect the 3rd water delivery path and the second backwater path, by the Cold water supply Intermediate Heat Exchanger in cold-storage tank, maintain continual heat exchange, and then balance user's thermic load, make the cold water of user's side maintain all the time one stable, within high-precision scope, meet to greatest extent customer requirement.
Beneficial effect: the precision of the control water temperature of the common handpiece Water Chilling Units in market is substantially at positive and negative 2-3 degree Celsius, water temperature deviation is very large, cannot meet the demand of some high-grade, precision and advanced cooling projects of industry, the control water temperature precision of high accuracy Cool-water Machine for Industry described in the utility model can be controlled in positive and negative 0.3-0.4 degree Celsius, reach the requirement of laboratory temperature-controlled precision, can meet the more than 95% industrial enterprise demand to high accuracy cold water.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing water chiller;
Fig. 2 is structural representation of the present utility model.
The specific embodiment
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection domain.
Shown in Figure 2, a kind of high accuracy Cool-water Machine for Industry group, comprise refrigeration system 1, electric T-shaped valve 2, Intermediate Heat Exchanger 3, subscriber equipment 4, user side cold water circulation pump 5, chilled water pump 6 and cold-storage tank 7, first, second interface of described refrigeration system 1 and electric T-shaped valve 2, and Intermediate Heat Exchanger 3, subscriber equipment 4 form the first water delivery path successively; Described subscriber equipment 4, user side cold water circulation pump 5, Intermediate Heat Exchanger 3, cold-storage tank 7, chilled water pump 6, refrigeration system 1 forms the first backwater path successively; Described refrigeration system 1, electric T-shaped valve 2 first, the 3rd interface, and cold-storage tank 7 forms the second water delivery path successively; Described cold-storage tank 7, electric T-shaped valve 2 the 3rd, the second interface, Intermediate Heat Exchanger 3, subscriber equipment 4 forms the second water delivery path successively; Described subscriber equipment 4, user side cold water circulation pump 5, Intermediate Heat Exchanger 3, cold-storage tank 7 form the second backwater path successively.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (2)

1. a high accuracy Cool-water Machine for Industry group, it is characterized in that, comprise refrigeration system, triple valve, Intermediate Heat Exchanger, subscriber equipment, user side cold water circulation pump, chilled water pump and cold-storage tank, first, second interface of described refrigeration system and triple valve, and Intermediate Heat Exchanger, subscriber equipment form the first water delivery path successively; Described subscriber equipment, user side cold water circulation pump, Intermediate Heat Exchanger, cold-storage tank, chilled water pump, refrigeration system forms the first backwater path successively; Described refrigeration system, triple valve first, the 3rd interface, and cold-storage tank forms the second water delivery path successively; Described cold-storage tank, triple valve the 3rd, the second interface, Intermediate Heat Exchanger, subscriber equipment forms the second water delivery path successively; Described subscriber equipment, user side cold water circulation pump, Intermediate Heat Exchanger, cold-storage tank form the second backwater path successively.
2. high accuracy Cool-water Machine for Industry group according to claim 1, is characterized in that, described triple valve is electric T-shaped valve.
CN201320804204.1U 2013-12-06 2013-12-06 High-precision industrial water chilling unit Expired - Lifetime CN203615638U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320804204.1U CN203615638U (en) 2013-12-06 2013-12-06 High-precision industrial water chilling unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320804204.1U CN203615638U (en) 2013-12-06 2013-12-06 High-precision industrial water chilling unit

Publications (1)

Publication Number Publication Date
CN203615638U true CN203615638U (en) 2014-05-28

Family

ID=50768276

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320804204.1U Expired - Lifetime CN203615638U (en) 2013-12-06 2013-12-06 High-precision industrial water chilling unit

Country Status (1)

Country Link
CN (1) CN203615638U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104748421A (en) * 2015-03-10 2015-07-01 广东申菱空调设备有限公司 High-low temperature environment air-cooled chiller unit and control method thereof
CN109798717A (en) * 2019-01-25 2019-05-24 东南大学 A kind of cooling system that realizing high accuracy temperature control and its control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104748421A (en) * 2015-03-10 2015-07-01 广东申菱空调设备有限公司 High-low temperature environment air-cooled chiller unit and control method thereof
CN109798717A (en) * 2019-01-25 2019-05-24 东南大学 A kind of cooling system that realizing high accuracy temperature control and its control method

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Granted publication date: 20140528