Pressure reducing valve

Abstract

The invention provides a pressure reducing valve comprising an air inlet, a valve body, a valve element, an air outlet and an adjusting bolt. The valve element is installed inside the valve body, thetwo ends of the valve body are mechanically connected with the air inlet and the air outlet separately, the air inlet, the valve body, the valve element, the air outlet and the adjusting bolt are coaxial, and the valve element is composed of an air inlet flow adjusting rod, an air inlet spring, a pressure adjusting orifice plate, an outlet spring and an air outlet flow rate adjusting rod. The pressure reducing valve has the advantages that the structure is simple and compact, operation is easy, and the service life is long; and the valve element adopts full-channel straight-through design, thepressure loss is small, the flow rate is large, the volume is small, and the weight is small.

Description

technical field [0001] The invention relates to a pressure reducing valve, which belongs to the technical field of straight-through pressure stabilizing and pressure reducing valves. Background technique [0002] The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure through adjustment, and relies on the energy of the medium itself to keep the outlet pressure automatically stable. By changing the throttling area, the flow rate and fluid kinetic energy are changed, resulting in different pressure loss, so as to achieve the purpose of decompression, and then rely on the adjustment of the control and regulation system to keep the pressure behind the valve constant within a certain error range. With the increasing market demand for pressure relief valves, pressure relief valves There are also more and more types of pressure reducing valves in the prior art. The air inlet, air outlet and valve core are in a relatively vertical...

AI Technical Summary

Problems solved by technology

[0002] The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure through adjustment, and relies on the energy of the medium itself to keep the outlet pressure automatically stable. By changing the throttling area, the flow rate and fluid kinetic energy are changed, resulting in different pressure loss, so as to achieve the purpose of decompression, and then rely on the adjustment of the control and regulation system to keep the pressure behind the valve constant within a certain error range. With the increasing market demand for pressure relief valves, pressure relief valves There are also more and more types of pressure reducing valves in the prior art. The air inlet, air outlet and valve core are in a relatively vertical spatial position, the structure is complex, the manufacturing cost is high, and it is not easy to operate, and the existing pressure reducing valves generally They are all in a state of static pressure. If the air source pressure is in a dynamic change process, it is impossible to stabilize and decompress in a short time.

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