CN202303780U - Control system utilizing cooling water to directly supply cold - Google Patents

Control system utilizing cooling water to directly supply cold Download PDF

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Publication number
CN202303780U
CN202303780U CN2011203796819U CN201120379681U CN202303780U CN 202303780 U CN202303780 U CN 202303780U CN 2011203796819 U CN2011203796819 U CN 2011203796819U CN 201120379681 U CN201120379681 U CN 201120379681U CN 202303780 U CN202303780 U CN 202303780U
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CN
China
Prior art keywords
valve
cooling
air
water
water pump
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
CN2011203796819U
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Chinese (zh)
Inventor
邵柱
周立平
王永全
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.)
Xiamen Tobacco Industry Co Ltd
Original Assignee
Xiamen Tobacco Industry 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 Xiamen Tobacco Industry Co Ltd filed Critical Xiamen Tobacco Industry Co Ltd
Priority to CN2011203796819U priority Critical patent/CN202303780U/en
Application granted granted Critical
Publication of CN202303780U publication Critical patent/CN202303780U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A control system utilizing cooling water to directly supply cold comprises a refrigerating machine, a cooling tower and an air conditioning cooling coil. A cooling circulation water pump and a valve A are respectively arranged on a cooling circulation water pipeline communicated with the refrigerating machine and the cooling tower. A refrigerating circulation water pump and a valve B are respectively arranged on a refrigerating circulation water pipeline communicated with the refrigerating machine and the air conditioning cooling coil. A valve C and a valve D are respectively arranged on a cooling circulation water pipeline communicated with the cooling tower and the refrigerating machine. The valve D is connected with the refrigerating circulation water pump. The valve A, the valve B, the valve C and the valve D are respectively connected with an outdoor wet-bulb thermometer. The control system can meet cooling demands of a few air conditioners in winter and can avoid a large amount of energy consumption caused by running of the refrigerating machine.

Description

The direct cooling control of a kind of cooling water system
Technical field
The utility model relates to a kind of air-conditioning refrigeration system.Relate in particular to the utility model and relate to the control mode of the direct cooling of a kind of cooling water.
Background technology
Conventional refrigerated air-conditioning system is made up of refrigeration machine, cooling tower, central air conditioning equipment, cool cycles water pump, freeze cycle water pump and pipeline.
In winter, because of local space quantity of heat production in the building is bigger, the minority central air-conditioning still needs the cooling cooling.In order to satisfy the cooling demand of minority air-conditioning, need to open refrigeration machine, cool cycles water pump, freeze cycle water pump, cooling tower equipment, need the electric energy of labor, refrigeration system efficient is lower.Yet in winter, because of outside air temperature is low, humidity is low.Lower through the cooled cooling circulating water water temperature of cooling tower, can replace freeze cycle water to supply the air-conditioning cooling to use.
The wet-bulb temperature of Hygrothermograph sensing chamber outer air, when wet-bulb temperature was enough low, the automatic switchover valve replaced chilled water directly to carry out cooling by cooling circulating water.When the direct cooling of cooling water can not satisfy the cooling demand of air-conditioning, but gain original pipe-line system automatically, open refrigeration machine and carry out normal cooling.
In sum, consider the energy-saving low-carbon potentiality, it is very necessary developing direct cooling of a kind of cooling water and control mode thereof.
The utility model content
To the weak point that exists in the prior art, the utility model provides the direct cooling control of a kind of cooling water system, and this system had both satisfied the cooling demand of minority air-conditioning in winter, the mass energy consumption of avoiding refrigerator operation to cause again.。
For realizing above-mentioned purpose, the utility model technical scheme is:
The direct cooling control of a kind of cooling water system comprises a refrigeration machine, a cooling tower and an air-conditioning surface cooler; Be respectively arranged with a cool cycles water pump and a valve A on the cool cycles water lines that described refrigeration machine and cooling tower are communicated with; Be respectively arranged with a freeze cycle water pump and a valve B on the freeze cycle water lines that described refrigeration machine and air-conditioning surface cooler are communicated with; Be respectively arranged with a valve C and a valve D on the cool cycles water lines that described cooling tower and air-conditioning surface cooler are communicated with, this valve D and described freeze cycle water pump join; Described valve A, valve B, valve C and valve D are connected an outdoor wet-bulb thermometer respectively.
The usefulness of technique scheme is:
The cooling water that native system utilizes cooling tower to make offers the air-conditioning surface cooler as refrigerant; Satisfy user's refrigeration in winter; When user's refrigeration duty in winter cooling water big, that cooling tower makes can not satisfy user's needs, restart refrigeration machine, according to conventional cooling condition operation.Summer, system moved according to conventional cooling condition.
The wet-bulb temperature of Hygrothermograph sensing chamber outer air, when wet-bulb temperature was enough low, the automatic switchover valve replaced chilled water directly to carry out cooling by cooling circulating water.When the direct cooling of cooling water can not satisfy the cooling demand of air-conditioning, original pipe-line system that automaticallyes switch was back opened refrigeration machine and is carried out normal cooling.
To cooling water filter, anticorrosion, scale inhibition and sterilization processing, make it reach the water quality requirement of chilled water.Switching the back by valve between cool cycles water lines and the freeze cycle water lines directly is communicated with; Plate type heat exchanger need be installed; Eliminate the heat transfer temperature difference between cooling circulating water and the freeze cycle water like this, enlarged the weather scope of utilizing the direct cooling of this cooling water.The direct cooling of the utility model cooling water had both satisfied the cooling demand of minority air-conditioning in winter, the mass energy consumption of avoiding refrigerator operation to cause again.
Description of drawings
Fig. 1 is the direct cooling control of a utility model cooling water system architecture sketch map;
Fig. 2 is the utility model normal cooling circulation in summer (cooling water circulation) sketch map;
Fig. 3 is the utility model normal cooling circulation in summer (chilled water circulation) sketch map;
Fig. 4 is the utility model direct cooling circulation in winter sketch map.。
The specific embodiment
Combine accompanying drawing and embodiment that the utility model is described at present.
The direct cooling of a kind of cooling water as shown in Figure 1 control system, this control system comprise a refrigeration machine 1, a cooling tower 2 and an air-conditioning surface cooler 3.
Be respectively arranged with a cool cycles water pump 4 and a valve A6 on the cool cycles water lines of described refrigeration machine 1 and cooling tower 2 connections.
Be respectively arranged with a freeze cycle water pump 5 and a valve B9 on the freeze cycle water lines of described refrigeration machine 1 and 3 connections of air-conditioning surface cooler.
Be respectively arranged with a valve C7 and a valve D8 on the cool cycles water lines of described cooling tower 2 and 3 connections of air-conditioning surface cooler, this valve D8 and described freeze cycle water pump 5 join.
Described valve A6, valve B9, valve C7 and valve D8 are connected an outdoor wet-bulb thermometer 10 respectively.
Switch the back by valve between the utility model cool cycles water lines and the freeze cycle water lines and directly be communicated with, plate type heat exchanger need be installed.The direct cooling control of this cooling water system conditions is following:
One, normal cooling circulation in summer:
1. cooling water circular flow warp as shown in Figure 2: refrigeration machine 1, cool cycles water pump 4 (valve-off C7), cooling tower 2 (valve-off D8, Open valve A6), refrigeration machine 1.
2. chilled water circular flow warp as shown in Figure 3: refrigeration machine 1 (valve-off D8), freeze cycle water pump 5, air-conditioning surface cooler 3 (valve-off C7, Open valve B9), refrigeration machine 1.
Two, direct cooling circulation in winter
Under the lower weather conditions of outdoor wet-bulb temperature, do not open refrigeration machine 1, and carry out cooling by the cooling water that cooling tower 2 makes, satisfy the air-conditioning temperature-reducing demand.
Cooling water circular flow warp as shown in Figure 4: freeze cycle water pump 5 (Open valve D8), air-conditioning surface cooler 3 (valve-off B9, Open valve C7), cooling tower 2 (valve-off A6, Open valve D8).
Through the detection of 10 pairs of outdoor temperature humidities of outdoor wet-bulb thermometer,, can be implemented in the switchover operation between the direct cold supply system of normal refrigeration system and cooling water according to outdoor climate conditions.Outdoor wet-bulb thermometer 10 is regulated the control motor-driven valve, realizes Open valve B9, valve A6 in summer under the normal cooling operating mode, and valve-off C7, valve D8 realize the summer cooling circulation.Realize Open valve C7, valve D8 in the winter time under the normal cooling operating mode of season, valve-off B9, valve A6 realize the direct cooling circulation of cooling water in winter.
Above embodiment is merely the technological thought of explanation the utility model; Can not limit the protection domain of the utility model with this; Every technological thought that proposes according to the utility model, any change of on the technical scheme basis, being done all falls within the utility model protection domain.

Claims (1)

1. the direct cooling of cooling water is controlled system, and it is characterized in that: this control system comprises a refrigeration machine, a cooling tower and an air-conditioning surface cooler; Be respectively arranged with a cool cycles water pump and a valve A on the cool cycles water lines that described refrigeration machine and cooling tower are communicated with; Be respectively arranged with a freeze cycle water pump and a valve B on the freeze cycle water lines that described refrigeration machine and air-conditioning surface cooler are communicated with; Be respectively arranged with a valve C and a valve D on the cool cycles water lines that described cooling tower and air-conditioning surface cooler are communicated with, this valve D and described freeze cycle water pump join; Described valve A, valve B, valve C and valve D are connected an outdoor wet-bulb thermometer respectively.
CN2011203796819U 2011-09-29 2011-09-29 Control system utilizing cooling water to directly supply cold Expired - Fee Related CN202303780U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203796819U CN202303780U (en) 2011-09-29 2011-09-29 Control system utilizing cooling water to directly supply cold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203796819U CN202303780U (en) 2011-09-29 2011-09-29 Control system utilizing cooling water to directly supply cold

Publications (1)

Publication Number Publication Date
CN202303780U true CN202303780U (en) 2012-07-04

Family

ID=46372665

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203796819U Expired - Fee Related CN202303780U (en) 2011-09-29 2011-09-29 Control system utilizing cooling water to directly supply cold

Country Status (1)

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CN (1) CN202303780U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235980A (en) * 2014-09-11 2014-12-24 河南中烟工业有限责任公司 Energy-saving mechanism for central air conditioner running in spring and autumn
CN108302835A (en) * 2018-01-18 2018-07-20 重庆美的通用制冷设备有限公司 Handpiece Water Chilling Units and its control method
CN109357367A (en) * 2018-10-16 2019-02-19 红塔烟草(集团)有限责任公司 A kind of energy-saving control method of air-conditioning or combined type wind cabinet central cooling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235980A (en) * 2014-09-11 2014-12-24 河南中烟工业有限责任公司 Energy-saving mechanism for central air conditioner running in spring and autumn
CN108302835A (en) * 2018-01-18 2018-07-20 重庆美的通用制冷设备有限公司 Handpiece Water Chilling Units and its control method
CN109357367A (en) * 2018-10-16 2019-02-19 红塔烟草(集团)有限责任公司 A kind of energy-saving control method of air-conditioning or combined type wind cabinet central cooling

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120704

Termination date: 20170929