Low-temperature air conditioner control system and control method
A control system, low-temperature air-conditioning technology, applied in the direction of mechanical equipment, can solve the problems of increasing the cooling capacity of the surface cooling section, hindering the development of chip processing and manufacturing, and achieving the effect of ensuring stability
Active Publication Date: 2019-07-05
NANJING FUCA AUTOMATION TECH CO LTD
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Problems solved by technology
At present, the air supply temperature of the conventionally designed process air conditioners known by domestic manufacturers is generally above 16°C. If it is necessary to reduce the supply air temperature to below 0°C, it is not only as simple as increasing the surface cooling section to increase the cooling capacity, but also needs to be considered. Issues such as the alarm of the unit compressor for the frosting of the cooling coil of the air supply meter below 0°C, and the temperature rise of the supply air caused by the defrosting of the compressor in the surface cooling section, these various problems have also become a roadblock to the development of the domestic chip processing and manufacturing industry. barrier
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[0032]The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0033] The present invention designs a low-temperature air-conditioning control system, which is used to control the air conditioner 1 to achieve air supply at a temperature below 0°C, including a control module 15, a communication module 16, and a blower 2 arranged inside the air conditioner 1, and at least one level of temperature-controlled refrigeration device, at least one set of damper action control devices.
[0034] Wherein, the control module 15 is connected with the communication module 16, and the temperature-controlled refrigeration devices at all levels respectively include surface cooling sections and temperature sensors, and the surface cooling sections and temperature sensors in the temperature-controlled refrigeration devices at all levels are respectively connected to the control module 15; The surface c...
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The invention relates to a low-temperature air conditioner control system and a control method. The automatic technology is applied, multiple levels of surface cooling sections are used for step typecooling, meanwhile, a communication module is used for monitoring the work state of surface cooling section compressors in real time, temperature sensors behind the surface cooling sections control various-level surface cooling output, the air inlet temperature is reduced to 0 DEG C or below step by step, air is conveyed out through an air supply machine and guided into an air brake action controldevice, and automatic air brake control is conducted according to the frosting situation; and through switchover between multiple air brakes, the intelligent defrosting operation is achieved while air supply at the temperature of 0 DEG C or below is kept, and air conditioner running stability is guaranteed.
Description
technical field [0001] The invention relates to a low-temperature air-conditioning control system and a control method, belonging to the technical field of HVAC automation control. Background technique [0002] As an important part of the building system, the central air-conditioning system is widely used in hospitals, biology, electronics, medicine, hotels, hotels and shopping malls, etc. With the rapid development of China's economy, the demand for central air conditioners in all walks of life is getting higher and higher, especially in the precision manufacturing industry, which is more typical in the field of intelligent manufacturing such as chips and liquid crystal circuit boards. The storage environment has high requirements. Due to its high-temperature, flammable, explosive and volatile toxic gas characteristics, the central air-conditioning unit must be able to ensure that the supply air temperature is kept stable at 0°C while introducing fresh air to the entire row...
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IPC IPC(8): F24F11/89F24F11/84
CPCF24F11/84F24F11/89
Inventor 李新美刘守超王岑佳焦义华
Owner NANJING FUCA AUTOMATION TECH CO LTD