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Refrigerating machine room system and control method

A control method and technology for refrigeration equipment rooms, applied in the direction of cooling/ventilation/heating transformation, etc., can solve problems such as low real-time performance, long response time, and feedback lag

Pending Publication Date: 2022-04-05
北京慧鎏科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present application is to provide a refrigeration machine room system and control method, which are used to solve the problems of long response time, feedback lag, and low real-time performance in the control mode of the existing refrigeration machine room

Method used

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  • Refrigerating machine room system and control method
  • Refrigerating machine room system and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Such as figure 1 As shown, the refrigerating machine room system 10 of an embodiment includes a chiller 100, a chilled water pump 200, a cooling water pump 300, and a cooling tower 400. The chilled water pump 200 is connected to the chiller 100 and the chilled water supply pipeline, and the chilled water pump 300 is connected to the chiller 100 and the cooling water return pipe, the end of the cooling water return pipe away from the cooling water pump 300 is connected to the cooling tower 400, and the refrigeration room system 10 also includes a main control system 500 , the first sub-control system 600 , the second sub-control system 700 , the third sub-control system 800 and the fourth sub-control system 900 . The main control system 500 is electrically connected to the chiller 100, the chilled water pump 200, the cooling water pump 300 and the cooling tower 400, and is used to control the chiller 100, the chilled water pump 200, the The cooling water pump 300 and th...

Embodiment 2

[0066] Such as figure 2 As shown, a control method is applied to the main control system in the refrigeration room system described in the above embodiment, and the control method includes:

[0067] 21. Control the first sub-control system, the second sub-control system, the third sub-control system and the fourth sub-control system to start and stop respectively. The main control system can control the first sub-control system, the second sub-control system, the third sub-control system and the fourth sub-control system to start and stop respectively, the first sub-control system, the second sub-control system, the third sub-control system and The fourth sub-control system starts to work or shuts down respectively, so as to achieve unified regulation and maintain coordination. In one of the embodiments, the control method further includes: controlling the start-stop sequence of the first sub-control system, the second sub-control system, the third sub-control system and the...

Embodiment 3

[0074] Such as image 3 As shown, a control method is applied to the first sub-control system in the refrigeration machine room system described in the above embodiment, and the control method includes:

[0075] 31. Perform data calculation on the chiller, and send the data calculation result to the main control system. The first sub-control system can not only calculate the data of the chiller, that is, obtain the operating parameters of the chiller, but also send the calculation result of the data to the main control system.

[0076] In one of the embodiments, the step of calculating the data of the chiller includes: acquiring the ambient temperature and humidity of the temperature and humidity sensor, and calculating the water supply temperature of the chiller according to the ambient temperature and humidity; acquiring the first water supply temperature According to the first water supply temperature of the sensor, the cooling and heating load to be provided is calculated...

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Abstract

The invention provides a refrigerating machine room system and a control method. A main control system controls a water chilling unit, a chilled water pump, a cooling water pump and a cooling tower to start and stop respectively; the first sub-control system performs data calculation on the water chilling unit and controls dynamic operation of the water chilling unit according to a data calculation result; the second sub-control system performs data calculation on the chilled water pump and controls dynamic operation of the chilled water pump according to a data calculation result; the third sub-control system performs data calculation on the cooling water pump and controls dynamic operation of the cooling water pump according to a data calculation result; and the fourth sub-control system performs data calculation on the cooling tower and controls dynamic operation of the cooling tower according to a data calculation result. According to the refrigerating machine room system and the control method, the main control system only controls the starting and stopping sequence and does not involve operation calculation and operation adjustment control, operation calculation and operation adjustment of all devices are carried out by the sub-control system, the calculation speed is higher, and the operation response speed is higher.

Description

technical field [0001] The present application relates to the technical field of refrigeration, in particular, to a refrigeration machine room system and a control method. Background technique [0002] At present, the application of refrigeration equipment rooms (including central air-conditioning) is inseparable in modern society, such as large buildings, modern factories, parks, office buildings, etc., all have rigid demands on refrigeration equipment rooms. The refrigeration machine room belongs to artificial refrigeration, and its purpose is to transfer the cooling load (that is, heat) from the indoor to the outdoor reverse heat transfer process. This process is composed of multiple interrelated heat transfer links in series. There are mainly five fluid cycles related to the refrigeration station, namely the chilled water cycle, the refrigerant cycle in the refrigeration unit, the cooling water cycle and the outdoor air cycle, etc. The main associated equipment is the ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20
Inventor 刘传之刘卫伟杜璇
Owner 北京慧鎏科技有限公司