A pressure relief valve is a device used to limit and regulate the pressure of liquid or gas, also known as a safety valve or insurance valve. Its main function is to limit and control the pressure in the system under the premise of protecting the safety of equipment and personnel. When the pressure in the system exceeds the preset safety value, the pressure relief valve will automatically open and release the excess liquid or gas to the outside, thereby keeping the pressure in the system within a safe range.
Since liquid or gas will generate pressure according to the principle of fluid dynamics, high pressure will be formed when liquid or gas is restricted. In order to prevent the explosion of pipelines or containers, we need to use pressure relief valves to reduce pressure.
The working principle of pressure relief valve is based on mechanical principle. Its design is mainly based on spring principle and sealing principle. When the system pressure exceeds the preset pressure, the spring will be compressed under the pressure, so that the valve will open and release excess liquid or gas. When the pressure drops to the preset safety value, the spring returns to its original state and the valve closes, keeping the system pressure within the set safety value range.
In addition, the pressure relief valve can also be adjusted according to customer needs. For example, in the chemical industry, the pressure needs to be strictly controlled and requires precise adjustment, so the pressure relief valve needs to adjust the opening pressure of the valve more accurately.
In the fields of industry, chemical industry, construction, energy conservation, etc., the pressure relief valve is a very important device. It can not only protect the safety of equipment and personnel, but also help increase the efficiency and economy of the system. Therefore, we need to select the appropriate pressure relief valve according to actual needs to achieve the best effect.
The design and adjustment of the pressure relief valve must strictly comply with relevant specifications and standards to ensure that it functions correctly, reliably and effectively. In actual use, we should strengthen the maintenance and inspection of the pressure relief valve to ensure that it operates in the best working condition.
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