YWZ5-315/30 dust and gas industrial explosion-proof brake for Hengyang Heavy Industry Coking Plant

The causes and reasons for hydraulic fail-safe brake system failures are briefly analysed. The main cause of hydraulic system failure is fluid contamination. Hydraulic failsafe brakes also face this situation. According to statistics, about 70% of hydraulic system failures are caused by fluid contamination. The main cause of contamination is the entry of air into the oil. This is due to poor sealing of pipe fittings, hydraulic pump control elements and actuators, air bubbles in the tank or poor oil quality. Therefore, this requires a hydraulic fail-safe brake and do not be afraid of oil contamination.

　　If water is mixed into the oil it will turn a milky colour. This is usually caused by moist air leaking into the fuel tank or cooling water. The mixing of solid contaminants can seriously affect the working performance of a hydraulic system. These are accomplished through hydraulic fail-safe brakes that may otherwise shorten the life of the component.

　　And to minimise failures and breakdowns due to fluid contamination, the level of fluid contamination must be kept within the contamination tolerance of critical components. Leaks are a common problem in hydraulic systems. The main causes are worn and damaged seals and loose pipework, which can be detrimental to a hydraulic system. External leaks occur at the mating surfaces of hydraulic components and pipe fittings. Attention should also be paid to this hydraulic fail-safe brakes.

　　As a rule, internal leaks in large machines occur in the gaps where the hydraulic components move internally. Therefore, we must also pay attention to the excessive leakage will reduce the volumetric efficiency of the pump, the hydraulic cylinder "crawling", the motor speed will also be reduced. It is very important to choose the right seal structure and seal material, which is also an important factor in ensuring fluid stability. Contamination and excessive vibration can effectively reduce fluid leakage. Various chemical additives are added to improve the performance of the reducing agent and meet the requirements.

　　And during the working process, due to high pressure and harsh environment, the chemical properties of the fluid will gradually change, exacerbating the oxidation and contamination of the fluid. As a result, the physical properties of the fluid change. If it exceeds the permissible range, the hydraulic system will be damaged. Therefore, the stability of the physical properties of the fluid should be tested regularly.

　　At the same time, hydraulic systems have a certain range of operating temperatures. If the temperature is too high or too low, the physical and chemical properties of the fluid will be greatly affected, which requires a hydraulic effectiveness protection brake to stabilise. The performance of sealing materials and components will also be affected, which will increase leakage and block or impede the movement of components.