CN202204090U - Cooling tower free refrigeration energy-saving device - Google Patents

Cooling tower free refrigeration energy-saving device Download PDF

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Publication number
CN202204090U
CN202204090U CN2011202896699U CN201120289669U CN202204090U CN 202204090 U CN202204090 U CN 202204090U CN 2011202896699 U CN2011202896699 U CN 2011202896699U CN 201120289669 U CN201120289669 U CN 201120289669U CN 202204090 U CN202204090 U CN 202204090U
Authority
CN
China
Prior art keywords
cooling
chilled water
cooling tower
saving device
loop
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 - Fee Related
Application number
CN2011202896699U
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Chinese (zh)
Inventor
蔡建平
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.)
DALIAN SHENGHE AUTOMATIC CONTROL TECHNOLOGY Co Ltd
Original Assignee
DALIAN SHENGHE AUTOMATIC CONTROL TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DALIAN SHENGHE AUTOMATIC CONTROL TECHNOLOGY Co Ltd filed Critical DALIAN SHENGHE AUTOMATIC CONTROL TECHNOLOGY Co Ltd
Priority to CN2011202896699U priority Critical patent/CN202204090U/en
Application granted granted Critical
Publication of CN202204090U publication Critical patent/CN202204090U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a cooling tower free refrigeration energy-saving device. The cooling tower free refrigeration energy-saving device comprises a cooling water loop with a cooling tower, a chilled water loop, a compressor, a condenser and an evaporator; an input pipeline and an output pipeline of the cooling water loop are provided with a three-way valve respectively so as to separate a cooling water branch; an input pipeline and an output pipeline of the evaporator of the chilled water loop are also provided with a three-way valve respectively so as to separate a chilled water branch; and a plate heat exchanger is arranged between the cooling water branch and the chilled water branch. The cooling temperature is intermittently required not be too low, and the plate heat exchanger is additionally arranged in the conventional air conditioner, cold water which is provided by an outdoor cooling tower is used as a one-time cold source, and exchanges heat with chilled water so as to produce cooled water at the temperature of between 10 and 16 DEG C for the system; therefore, electric energy which is consumed by running a refrigerator can be saved. The device shortens the running time of the refrigerator to the maximum extent, so the device can work in place of the refrigerator under the conditions of appropriate climatic environment and building load to become the free cold source.

Description

The free refrigerated energy-saving device of cold tower
Technical field:
The utility model relates to a kind of refrigerating plant that existing air-conditioning is improved.
Background technology:
For most of commercial buildings, the energy consumption of refrigeration unit accounts for more than 50% of whole building energy consumption usually, and visible reduction refrigeration unit comprises the power consumption of condenser, evaporimeter, compressor, can practice thrift mass energy.At transition season, often when outdoor temperature is lower than 15 ℃,, consume a certain amount of energy because indoor some special circumstances (receiving solar radiation like sunny side) or individual's specific (special) requirements also will start the refrigeration machine cooling.
Summary of the invention:
The utility model is in order to solve at transition season, and the problem of air conditioner refrigerating consumed power provides a kind of simple in structure, easy to operate, can realize the free refrigerated energy-saving device of cold tower of zero power consumption refrigeration at transition season.
The technical solution of the utility model is: the free refrigerated energy-saving device of a kind of cold tower; Comprise the cooling water loop, chilled water loop, compressor and condenser and the evaporimeter that are provided with cooling tower; On the condenser input and output pipeline of cooling water loop, triple valve is set respectively, isolates a cooling water branch road; On the evaporimeter input and output pipeline of chilled water loop, triple valve is set equally respectively, isolates a chilled water branch road; Be provided with plate type heat exchanger between cooling water branch road and the chilled water branch road.
Because the fixed cooling tower of a kind of structure, its outlet water temperature is decided by building refrigeration duty and outdoor air wet-bulb temperature.This wet-bulb temperature can be represented under local atmospheric temperature condition, the minimum temperature that water possibly be cooled, the just theoretical boundary of cooling tower leaving water temperature.Conventional air-conditioning water system, general chilled water loop are imported and exported water temperature and are mostly 7 ℃ and 12 ℃, and the temperature difference is 5 ℃.The chilled water of selecting such low temperature mainly is for the summer air-conditioning dehumidifying.And in the outside air temperature decline of transition season, refrigeration duty and humidity load are also in continuous minimizing, and suitably improving chilled water temperature can satisfy the air conditioning comfortableness requirement fully, and this just provides chance for the cooling tower cooling method of operation.
The utility model pin does not require too low in the temperature of cooling; Be intermittent demand simultaneously, through calculating cooling area and cooling amount, an additional platen formula heat exchanger in original air-conditioner water system; The cold water that provides with outdoor cooling tower is a low-temperature receiver; Chilled water is carried out exchange heat, and the cold water confession system that can make 10-16 ℃ uses, the electric energy that consumes with regard to the operation of having saved refrigeration machine like this.This device shortens the running time of refrigeration machine to greatest extent, makes it under suitable climatic environment and building load condition, can replace refrigeration machine work, becomes the low-temperature receiver of not spending.
Description of drawings:
Fig. 1 is the structural principle block diagram of the utility model.
The specific embodiment:
Further specify the embodiment of the utility model below in conjunction with accompanying drawing.
As shown in Figure 1; The free refrigerated energy-saving device of a kind of cold tower; Comprise the cooling water loop, chilled water loop, compressor and condenser and the evaporimeter that are provided with cooling tower, on the condenser input and output pipeline of cooling water loop, triple valve is set respectively, isolate a cooling water branch road; On the evaporimeter input and output pipeline of chilled water loop, triple valve is set equally respectively, isolates a chilled water branch road; Be provided with plate type heat exchanger between cooling water branch road and the chilled water branch road.
Mansion transition season cooling amount is approximately 1460kW (400rt), and its quantity of circulating water is 252.4L/s.If when outdoor dry bulb and wet bulb is respectively 10 ℃, convert cooling tower cooling pattern into, will there be the refrigeration duty that amounts to about 973200kWh to bear by the cooling tower cold supply system, can make the about 660h of refrigeration unit saving running time.This will practice thrift the operating cost of air-conditioning system to a great extent.
As stated; The cooling tower heat-exchange system is energy-conservation mainly to be the cold machine operation that replaces in the refrigeration unit, and the refrigerating capacity of the cold machine of mansion separate unit is 1150KW, but since this in period outdoor temperature be not very high; Unit also can not turn round under at full capacity; By 60% load estimate, like this current year first transition season can cost following :=455,400 yuan of 1150KW * 660h * 60% * 1 yuan/degree.

Claims (1)

1. free refrigerated energy-saving device of cold tower; Comprise the cooling water loop, chilled water loop, compressor and condenser and the evaporimeter that are provided with cooling tower; It is characterized in that: on the condenser input and output pipeline of cooling water loop, triple valve is set respectively, isolates a cooling water branch road; On the evaporimeter input and output pipeline of chilled water loop, triple valve is set equally respectively, isolates a chilled water branch road; Be provided with plate type heat exchanger between cooling water branch road and the chilled water branch road.
CN2011202896699U 2011-08-10 2011-08-10 Cooling tower free refrigeration energy-saving device Expired - Fee Related CN202204090U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202896699U CN202204090U (en) 2011-08-10 2011-08-10 Cooling tower free refrigeration energy-saving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202896699U CN202204090U (en) 2011-08-10 2011-08-10 Cooling tower free refrigeration energy-saving device

Publications (1)

Publication Number Publication Date
CN202204090U true CN202204090U (en) 2012-04-25

Family

ID=45968211

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202896699U Expired - Fee Related CN202204090U (en) 2011-08-10 2011-08-10 Cooling tower free refrigeration energy-saving device

Country Status (1)

Country Link
CN (1) CN202204090U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105485870A (en) * 2015-12-31 2016-04-13 中国中元国际工程有限公司 Condensation heat recovery, dehumidification and reheating system and central air conditioning system with same
WO2016165279A1 (en) * 2015-04-17 2016-10-20 北京百度网讯科技有限公司 Water side natural cooling system and water side natural cooling method
CN107355926A (en) * 2017-07-11 2017-11-17 福建省建筑设计研究院 High-temperature refrigeration coupling accumulation of energy cold source air conditioning system and its control method based on independent temperature-humidity control
CN112212461A (en) * 2020-09-10 2021-01-12 珠海格力电器股份有限公司 Central air-conditioning system and control method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016165279A1 (en) * 2015-04-17 2016-10-20 北京百度网讯科技有限公司 Water side natural cooling system and water side natural cooling method
CN105485870A (en) * 2015-12-31 2016-04-13 中国中元国际工程有限公司 Condensation heat recovery, dehumidification and reheating system and central air conditioning system with same
CN105485870B (en) * 2015-12-31 2018-11-27 中国中元国际工程有限公司 Recovering condensing heat dehumidifying reheat system and the central air conditioner system using it
CN107355926A (en) * 2017-07-11 2017-11-17 福建省建筑设计研究院 High-temperature refrigeration coupling accumulation of energy cold source air conditioning system and its control method based on independent temperature-humidity control
CN112212461A (en) * 2020-09-10 2021-01-12 珠海格力电器股份有限公司 Central air-conditioning system and control method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120425

Termination date: 20140810

EXPY Termination of patent right or utility model