Pressure reducing valve off-line adjusting device

Abstract

The invention relates to a pressure reducing valve off-line adjusting device which comprises a clamping assembly, a first pressure gauge, a second pressure gauge, an air supply port, a first pressurerelief port and a second pressure relief port. The clamping assembly comprises a clamping platform, a first clamp, a second clamp and a clamping drive, wherein the first clamp and the second clamp arelocated on the clamping platform and used for clamping and sealing the two ends of a pressure reducing valve, and the clamping drive is used for driving the first clamp and the second clamp to get close to each other. The first clamp, the air supply port and an inlet of the first pressure gauge are communicated through a first pipeline, and an outlet of the first pressure gauge is communicated with the first pressure relief port through the first pressure relief valve. The second clamp is communicated with an inlet of the second pressure gauge through a second pipeline, and an outlet of the second pressure gauge is communicated with the second pressure relief port through a second pressure relief valve. By means of the arrangement, the pressure reducing valve is fixed to the clamping assembly, the pressure reducing value of the pressure reducing valve can be calibrated in real time according to real-time data of the first pressure gauge and the second pressure gauge, convenience, safety and reliability are achieved, operation is convenient, time and labor are saved, and calibration is accurate.

Description

technical field [0001] The present application relates to the technical field of pressure reducing valves, and more specifically, relates to an off-line adjustment device for 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. From the point of view of fluid mechanics, the pressure reducing valve is a throttling element whose local resistance can be changed, that is, by changing the throttling area, the flow velocity and the kinetic energy of the fluid are changed, resulting in different pressure losses, so as to achieve the purpose of decompression. Then rely on the adjustment of the control and regulation system to balance the fluctuation of the post-valve pressure with the spring force, so that the post-valve pressure remains constant within a cer...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems existing in related technologies at least to a certain extent, the purpose of this application is to provide an off-line adjustment device for pressure reducing valves, which can solve the problems of time-consuming, laborious and inaccurate calibration of existing pressure reducing valves

Images