Adjusting method of cool-water screw precisioning air conditioner system

A technology of precision air conditioning and control method, applied in the controller, electric controller, electrical program control and other directions with specific characteristics, can solve the problem of loss of flexibility of the controller, reduce frequent startup, control flexibility, and prolong service life Effect

Inactive Publication Date: 2006-08-16
广东力优环境系统股份有限公司
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  • Abstract
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Problems solved by technology

[0002] At present, in the field of existing commercial air conditioners, most of the screw-cooled precision air conditioners are controlled by single-chip microcomputers. Since the single-chip microcomputer control system must be used in conjunction with peripheral electronic circuits, it is difficult to control the programmed single-chip microcomputer without changing the hardware. The program in the single-chip microcomputer is modified again. For the widely used screw-cooled precision air-conditioning system, the controller loses its flexibility.

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  • Adjusting method of cool-water screw precisioning air conditioner system
  • Adjusting method of cool-water screw precisioning air conditioner system
  • Adjusting method of cool-water screw precisioning air conditioner system

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Embodiment Construction

[0016] The following is the best embodiment of the control method of the screw-cooled precision air-conditioning system of the present invention, which does not limit the protection scope of the present invention.

[0017] With reference to Fig. 1, Fig. 2, Fig. 3, a kind of control method of screw-cooled precision air-conditioning system is provided, and described screw-cooled precision air-conditioning system comprises compressor 1, the condenser 4 that is connected with compressor 1 in sequence, drier filter 6. The evaporator 3, the chilled water outlet pipe 7 and the chilled water return pipe 8 arranged on the condenser 4, an expansion valve 5 is arranged on the pipe connecting the condenser 4 and the evaporator 3, and a PLC controller is also included 2. A temperature sensor 9 for detecting the return temperature of the chilled water is provided on the chilled water return pipe 8. The output end of the temperature sensor 9 is connected to the input end of the PLC controller...

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Abstract

A controlling method for the screw rod cooling precision air-conditioning system, which comprises the compressor which connect with the condensator, the drying filter, the evaporator, the output pipe and the return pipe for cold water of the condensator, and the PLC controller, the temperature transducer is set on the return pipe for check the temperature of the return-water, the output end of the temperature transducer connect with the input end of the PLC controller, the solenoid valve is in the compressor and the PLC controller and the PID program can achieve auto-regulation of the screw rod cooling precision air-conditioning system and control the temperature of the return water accurately of the central air-conditional system.

Description

technical field [0001] The invention relates to a chilled water supply system in the field of heating, ventilating and air-conditioning, in particular to a method for controlling a screw chilled water precision air-conditioning system using a PLC controller. Background technique [0002] At present, in the field of existing commercial air conditioners, most of the screw-cooled precision air conditioners are controlled by single-chip microcomputers. Since the single-chip microcomputer control system must be used in conjunction with peripheral electronic circuits, it is difficult to control the programmed single-chip microcomputer without changing the hardware. The program in the single-chip microcomputer is modified again, which makes the controller lose flexibility for the widely used screw-cooled precision air-conditioning system. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and provid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02F24F11/00G05B11/42G05B19/05
Inventor 方沛明陈仰林
Owner 广东力优环境系统股份有限公司
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