Analysis of the cause of excessive temperature of LY 37 Jiaer air compressor 1. Influence of ambient temperature and environment on the intake and exhaust air 0 The screw air compressor is cooled by air cooling and water cooling. When the ambient temperature is high. Its heat dissipation is inevitably affected when the ambient temperature is above 40. Other auxiliary methods must be used to reduce the temperature. If the air is not smooth, the cooling effect will be deteriorated. The air compressor is installed indoors and requires its air inlet and outlet side to be away from the wall. 1. Know that fresh air can be replenished in time. Hot air can be discharged in time.
At the same time, there should be no obstructions at the inlet and outlet.
2 Lubricating oil grade Clean oil level Lubricating oil is not only lubricated in the air compressor, but the main function is cooling. To take away the heat generated by the gas during the compression process. Lubricating oils for various types of screw air compressors should be selected in accordance with the requirements of the specification. Can not be used casually, otherwise it will have bad consequences. When there is no special screw compressor oil, it should be selected according to the recommendations of the manual. Be careful to let go of all the remaining oil. Rinse with new oil; when the air compressor is put into operation, the use of substitute oil should be closely observed to see if the oil temperature is too high. Is there a lot of bubbles? If any abnormality is found, it should be stopped immediately.
The cleaning of lubricating oil is very important. The high temperature of many air compressors is related to this.
When the temperature of the screw air compressor is found to be too high, the oil should first be checked. When the color of the lubricating oil becomes deeper and a lot of bubbles are generated, the oil has begun to deteriorate and should be replaced. Lubricating oil replacement should be based on the working environment and conditions of use. Work around 2,500. If the annual work is less than 2,500, it should be replaced after the year.
High oil temperatures cause carbon to be precipitated in the lubricating oil. Forming coking. This will increase the oil temperature. At the same time, the air compressor will absorb some dust during the work. When the oil filter is dirty. The oil temperature will also increase as the oil flow decreases. Therefore, the filter should be replaced regularly.
Use 150 for the first time to replace. In the future, around 2,00, if the environment is bad, the cycle should be shortened.
oil. When the gas is separated, some oil is always discharged with the gas. This will reduce the amount of oil. When the amount of oil is insufficient, a high temperature is formed. Therefore, always observe the oil level. When the oil level is low. Replenish lubricants in time to avoid high temperatures.
The load of the compressor is increased as the air pressure increases, especially when the air pressure exceeds the rated air pressure. The load is even greater. At this point the temperature will rise rapidly. Therefore, to avoid overpressure operation, try to keep working below the rated pressure to keep the temperature from rising. It also guarantees safety.
The cooling aspect of the lubricating oil is cooled by a fan, and the other part of the heat is cooled by a cooler. When the effect of the oil cooler deteriorates, the oil temperature will rise immediately. The cooling effect can be judged by touching the temperature difference between the inlet and outlet of the cooling water. If the oil temperature is higher. The cooling water outlet temperature is not high, indicating that the cooler is not effective. The cleaning should be checked, and the cooling effect may be poor for a variety of reasons, and there is a blockage in the cooler oil passage. For example, the rubber seals are detached or there is carbon deposit on the outer wall of the copper tube. There is clogging of scale or other objects in the cooler water passage. Special attention should be paid when the hardness of the cooling water used is too high or the suspended matter is more than 0. The compartment seal in the cooling water passage is broken. Short-circuit cooling effect of the waterway is deteriorated.
Cleaning of the oil cooler can be done with a special cleaning agent. The oil road has a special carbon cleaning agent, and the water circuit has a special scale cleaning agent. The two cleaning agents are separately poured into their respective channels. Plug it with a stopper. Keep 81 and rinse with water. For the oil circuit, use water to dry it with dry compressed air.
The oil cooler bypass has a temperature control valve. When the compressor just started. The oil temperature is low. The performance of the lubricating oil is deteriorated and a certain amount of water is precipitated in the cold lubricating oil to protect the air compressor. The lubricant at this time cannot pass through the cooler. And through the temperature control valve. When the oil temperature rises at 55, the temperature control valve is naturally closed, allowing the oil to cool through the cooler.
When the temperature control valve is damaged, such as when the diaphragm is broken and cannot be closed. The oil will pass straight through the thermostatic valve.
The temperature of the oil does not rise without passing through the cooler. At this point, it is only necessary to replace the temperature control valve or the diaphragm to ensure that the lubricant will not be ejected from the suction port when the air compressor is shut down. A fuel cut solenoid valve was installed behind the oil filter. During normal operation. The solenoid valve is energized and the passage is open; when the machine is stopped, the solenoid valve is de-energized and the passage is closed. The oil circuit is cut off. When starting up or running normally. If the solenoid valve is not energized. Will cause the oil temperature to rise sharply. The protection should be stopped immediately, and the line should be checked for broken or the electromagnetic wire burned out. Also. 1 When the diaphragm of the broken solenoid valve is damaged, the oil path will not be smooth. The cooling effect is worse and the temperature is increased accordingly. The above only talks about several reasons why the temperature of the screw air compressor is too high. There are also many reasons for the oil temperature to rise, such as bearing damage. It is also possible to check the comprehensive items of the above several reasons to determine the cause. Take measures again. W03.1016 is known as Tonglian Guangdong Chenghua Co., Ltd., Guangdong Meixian Xiyang Temple edited Liwen Longmen planer high reliability electronic combination trip switch price accompanying the city information free of charge address Taiyuan City has 172 Inner Ring Street 22 equipment bamboo maintenance 2003, such as Protection and repair
XB400 CAF Jointing Sheet
Description:XB400 CAF Jointing Sheet is made by good asbestos fiber with rubber ,compression molding it in thick paper fashion.
Usage:XB400 CAF Jointing Sheet is suitable for high temperature max 400℃ and high pressure max 5.0MPa,for water and saturated vapour,super vapour,gas inert gases transmitted in the joints of facilities and pipelines.
TEMP:400℃(max)
PRESS:5.0MPa(max)
Dimension:
4100×1500mm; 4500 x 1500mm;2000×1500mm;
1500×1500mm;1500×1000mm;1540x1360mm
1270×1300mm; 3810×1300mm
Thickness: 0.5~6.0mm
Technical data:
Lateral Tensile Strength/MPa ≥ 15.0
Aging coefficient ≥ 0.9
Loss on ignition/% ≤ 28.0
Compression ratio/% 7~17
Recovery/% ≥ 45
Creep relaxation rate/% ≤ 50
Density(g/cm3) 1.6~2.0
Product photoes:
Xb400 Caf Jointing Sheet,Jointing Sheet,steam jointing sheet,Gasket Joint Sheet
HEBEI HENGDA SEALING MATERIALS CO.,LTD. , https://www.hengdasealing.com