GQYF-2A type air compressor comprehensive protection device

The six-channel temperature of the compressor is over-temperature, oil-cut, water-cut, and over-air pressure. Coal safety regulations have clearly required that the pressure fan equipment must be installed: air bag temperature, first and second cylinder temperature, cooling water inlet and outlet temperature detection, water cut detection, over-air pressure detection and other safety detection and alarm equipment. It should have the following functions

The main function:

2. Over-temperature alarm function: when the measured air bag temperature, first-stage cylinder temperature, second-stage cylinder temperature, oil temperature, cooling water inlet and outlet temperatures exceed 120℃, 160℃, 160℃, 70℃, 35℃, When the temperature is 40℃, the corresponding indicator light will flicker, sound and light alarm; each temperature alarm value can be set arbitrarily.  

3. Over-wind pressure protection function: when the wind pressure exceeds the set value, the corresponding indicator light of this device flashes, and the sound and light alarm;   

4. Oil cut-off protection function: When there is no oil pressure after 20 seconds after the power-on signal, the corresponding indicator light of this device flashes, and the sound and light alarm;   

5. Over-oil pressure and under-oil pressure protection function: when the lubricating oil exceeds the rated value or is lower than the rated value, the corresponding indicator light of this device flashes, and the sound and light alarm;  

  6. Water cut-off protection function: This device has three water cut-off signals, any one of which is cut off, its corresponding indicator light flashes, sound and light alarm;   

7. Excess water pressure alarm: When the water pressure exceeds the rated value, the corresponding indicator light of this device flashes, and the sound and light alarm;

   8. Loss of magnetic protection;

9. After the horn alarms, the output relay is closed and the compressor is controlled to stop.  

   Need to pay attention: At present, many manufacturers' products have many shortcomings that need to be improved:  

  1. The temperature sensor uses imported sensors, which completely avoids the shortcomings of other manufacturers' temperature sensors that are easy to damage and burn down the internal circuit.  

2. Six channels of temperature display at the same time, intuitive and convenient. Avoid the shortcomings of other manufacturers' single-channel loop display.  

3. The oil-filled shock-proof pressure gauge is adopted, which is intuitive, accurate and reliable. Avoid pressure relay types of other manufacturers.

4. The temperature alarm value can be set arbitrarily. The alarm value of the six-channel temperature (special requirements can reach the eight-channel temperature) can be set arbitrarily through the dial to achieve flexible requirements.  

5. Three-way water cut protection. Avoid the shortcomings of other manufacturers of water cut protection. Its main users are: Henan Hebi Group Co., Ltd., Jilin Tonghua Mining Group Co., Ltd., Shandong Xinwen Mining Group Co., Ltd., Linyi Mining Group Co., Ltd., Zaozhuang Mining Group Co., Ltd., Hebei Fengfeng Mining Group Co., Ltd. Company, Jiangxi Copper Group Co., Ltd., etc.