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A control method, device and controller for a central air-conditioning chiller

A central air-conditioning and controller technology, which is applied in mechanical equipment and other directions, can solve the problems of poor comfort at the end of the centralized control refrigerator and the inability of the controller to be used in the central air-conditioning system, so as to ensure the effect of timely and effective.

Active Publication Date: 2019-09-10
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned centralized control is to write the configuration mode of the chiller into the central controller in advance. When there are different numbers of chillers and chillers of different sizes, it is necessary to change the control program of the central controller for the chillers, resulting in this centralized control. The controller cannot be used universally in various central air-conditioning systems
And due to the time lag of the integrated pipe network, the end comfort of the centralized control chiller is poor

Method used

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  • A control method, device and controller for a central air-conditioning chiller
  • A control method, device and controller for a central air-conditioning chiller
  • A control method, device and controller for a central air-conditioning chiller

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Embodiment 1

[0024] figure 1 It is a flowchart of a control method for a central air-conditioning refrigerator provided by Embodiment 1 of the present invention. This embodiment can be used to control the operating state of a central air-conditioning refrigerator. The method can be executed by a control device for a central air-conditioning refrigerator. The device can Realized by means of software and / or hardware, the device can be integrated in any controller that provides the function of controlling the running state of the central air-conditioning and cooling machine.

[0025] see figure 1 , the control method of the central air-conditioning refrigerator, comprising:

[0026] S110. Update the integrated operating parameters according to the self-operating parameters and the integrated operating parameters, and set and store the working status.

[0027] In this embodiment, the control method of the central air-conditioning refrigerator is realized based on the formation of an intercon...

Embodiment 2

[0034] image 3 The flow chart of the control method of the central air-conditioning refrigerator provided by Embodiment 2 of the present invention. On the basis of the above embodiments, this embodiment optimizes the step of updating the comprehensive operating parameters according to its own operating parameters and comprehensive operating parameters. : Obtain the current own priority; when the self is the first priority, receive the input comprehensive operating parameters, and update the comprehensive operating parameters according to the self operating parameters and the input comprehensive operating parameters; when the self is other priority, receive The integrated operating parameters sent by the upstream first controller are updated based on the integrated operating parameters and the input integrated operating parameters.

[0035] see image 3 , the control method of the central air-conditioning refrigerator, comprising:

[0036] S310. Obtain the current own priori...

Embodiment 3

[0051] Figure 4 The flow chart of the control method of the central air-conditioning refrigerator provided by the third embodiment of the present invention, this embodiment is based on the above-mentioned embodiment, after calculating the energy efficiency ratio COP according to the received updated total power, according to the stored The following steps are added before the working state controls the operation of the chiller: the load rate is lowered according to the preset ratio, so that the COP calculated according to the load rate after the lowering meets the preset energy consumption ratio condition. And the control of the operation of the cold machine according to the stored working state is specifically optimized as: controlling the operation of the cold machine according to the stored working state corresponding to the load rate before the reduction.

[0052] see Figure 4 , the control method of the central air-conditioning refrigerator, comprising:

[0053] S410....

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Abstract

One embodiment of the invention discloses a control method, device and controller for a central air conditioner cooling machine. The method comprises following steps: updating comprehensive operational parameters according to self operational parameters and comprehensive operational parameters, setting and storing work status; sending the updated comprehensive operational parameters to a downstream first controller so that the downstream controller carries out a second time updating and setting and storing the work status according to the updated comprehensive operational parameters until the updated comprehensive operational parameters satisfy a preset operational condition and sending operational information to an upstream controller; after receiving the operational information preset duration, controlling the cooling machine to operate according to the stored work status. By means of the technical scheme of the embodiment of the invention, the decoupling control of cooling machines in a central air conditioner system is realized; the purpose of universal development of cooling machine control programs is achieved; at the same time, the timely effectiveness of terminal cooling and comfort of terminal rooms are guaranteed.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of central air-conditioning, and in particular to a control method, device and controller for a central air-conditioning refrigerator. Background technique [0002] In large-scale central air-conditioning systems, chillers are used in the machine room for cooling. According to the size of the cooling demand, there are usually multiple cooling machines of the same or different sizes connected in parallel, and the cooling capacity is adjusted by controlling the number of cooling machines turned on to meet the cooling capacity demand at the end of the system. [0003] The energy consumption of the air-conditioning system accounts for about half of the energy consumption of the entire building, and the chiller is the largest energy-consumer of the entire computer room, accounting for more than half of the energy consumption of the entire computer room. Therefore, the energy-saving rate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/64F24F11/54F24F11/46
Inventor 王娟刘华张治平王升孙栋军刘国林刘羽松
Owner GREE ELECTRIC APPLIANCES INC
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