Roots blower is a volume rotary fan, which is characterized by little change of flow when the pressure is adjusted within the allowable range during use, wide range of pressure selection, and forced gas transmission. The medium does not contain oil during transportation. Simple structure, convenient maintenance, long service life and low vibration of the whole machine. Roots blower transports clean air, clean kerosene, sulfur dioxide and other inert gases. In view of the above characteristics, Roots blower can be widely used in metallurgy, chemical industry, fertilizer, petrochemical, instrument and building materials industries.
The pressure relief valve of Roots blower generally operates under low pressure, so the contact surface between the valve seat and the valve body is precision machined. If there is foreign matter attached around the valve seat, when the valve body works, the foreign matter will be adsorbed on the contact surface, thus forming a leak. In addition, please check whether the pressure relief valve is impacted during handling, which is also the cause of leakage.
During the use of Roots blower, the setting and adjustment of the pressure relief valve parameter value is a common problem. According to the different protection containers and pipelines, the pressure relief valve parameter value should also be adjusted at any time, so that the Roots blower equipment can operate safely and stably. The pressure relief valve is an indispensable part of Roots blower, which plays an important role in the normal use of the machine. The air volume (flow) of Roots blower is relatively large under normal conditions. In order to prevent the outlet pressure from being too large (the inlet pressure of the blower fluctuates greatly), the pressure relief valve is installed to effectively protect the blower system. Make the fan outlet pressure in a safe and stable state. During the use of Roots blower, the setting and adjustment of the pressure relief valve parameter values should be frequently observed and adjusted. According to the protection vessels and pipelines, the pressure relief valve parameter values should not be adjusted at any time, so that the blower equipment can operate safely and stably. Generally speaking, the pressure of the discharge valve of Roots blower is set as the specified value in the factory. When the Roots blower operates for a long time, the user should pay close attention to the pressure of the pressure relief valve. Adjustment method: 1. Start Roots blower to observe the pressure gauge, and tighten the valve to about 10% more than the set pressure.
2. Loosen the lock nut and rotate the adjusting rod counterclockwise until the pressure relief valve discharges air.
3. In the process of tightening the valve, if the set pressure has not been reached, the pressure relief valve will discharge air. Turn the pressure regulating rod clockwise again until no air is discharged, and then turn the pressure regulating rod counterclockwise until the air is discharged correctly.
4. Tighten the lock nut and adjusting nut, and finally loosen the gate valve.
Text label: Roots blower
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