Symptoms: a Shanghai Buick sedan, driving process, the air conditioning air outlet air capacity gradually reduced to disappear, but after 6-7 minutes, returned to normal. Failure Analysis: Buick car equipped with a variable displacement compressor, the level of its refrigeration depends on the level of the air-conditioning pump, according to the pressure changes automatically adjust the temperature, air-conditioning control system does not collect the evaporator outlet temperature signal. In the whole process of refrigeration, air conditioning pump is always running. The adjustment of the cooling intensity depends entirely on the pressure control valve installed inside the air conditioning pump to control. Pressure drops if pressure regulator is at low pressure. If the pressure on the high pressure side rises to a certain extent, the pressure regulating valve shortens the effective stroke of the five small pistons in the air conditioning pump, which will reduce the cooling intensity of the air conditioning pump. When the high-pressure end of the pressure drops to a certain extent, the low-pressure end of the pressure rise to a certain extent, the pressure regulating valve is to increase the piston effective stroke to improve the cooling intensity. The key to this process is the spring force of the spring inside the pressure regulator. If the elastic force of the spring increases, it will cause the pressure pulling point to move upward, resulting in excessive cooling intensity, resulting in the frosting of the outer wall of the evaporator and the air-conditioning outlet without wind. When the outer wall of the evaporator after the dissolution of the system has returned to normal. Failure reason: Buick car air conditioning system to add refrigerant for the R134a. When the system mixed with R12, will result in increased system cooling capacity. After working in this state for a period of time, the temperature is too low will increase the spring coefficient of the pressure regulating valve, the system failure. Remedy: Empty the system of refrigerant, replace the pressure regulator, filled with pure R134a refrigerant, troubleshooting.
Carbon Regeneration Kiln
This series of equipment can regenerate various types of activated carbon such as coal, wood, nut shell, mineral (petroleum), or powder, granule, column, or primary, extruded, and re-formed activated carbon, according to the characteristics of activated carbon fire method regeneration treatment , This series of equipment is equipped with unique flue gas treatment equipment to ensure the green and environmental protection of the activated carbon fire method regeneration process.
The device has the following characteristics:
1.Wide application field: the device can regenate various types of activated carbonon by adjusting the angle and rotational speed of furnace pipe.
2.Regeneration activated carbon in the oven retention time 40 minutes, which is applicable to the regeneration levelofall kinds of grain particles, for coal activated carbon also has good regeneration effect.
3.High degree of automation:the device operation achieves automatic control,with man-machine interface+Intelligent instrument control,reduces the operating workers and the labor intensity is low.
4.High recovery rate of Iodine value:basically returned to a new carbon levels above 90%.
5.Low carbon loss:≤1-2%(Coal carbon)But slightly higher than the JHR-O series activated carbon fuel diesel reclamation equipment
6.Easy installation, covers an area slightly larger, but the small space height requirements, large installed power.
Long service life:The core components furnace tube using thick wall (10 mm thick) 1200 ℃ high temperature resistance, corrosion resistant special stainless steel pipe.
Carbon Regeneration Kiln,Rotary Kiln Services,Carbon Regeneration Process,Chemical Regeneration Of Activated Carbon
Changchun Gold Research Institute Co.LTD , https://www.changchunmachine.com