Constant value pressure-reducing real-time sampling valve

Abstract

The invention provides a constant value pressure-reducing real-time sampling valve. The constant value pressure-reducing real-time sampling valve is composed of an upper body, a lower body and an electromagnetism switch valve, the upper body is connected with the lower body through threads, a liquid inlet, a liquid outlet and a control liquid channel are formed in the upper body, a valve core, a spring and a baffle ring are arranged in the upper body, the valve element is fabricated in a valve cavity, and the spring is mounted in the valve core and pressed against the baffle ring; and a sampling opening and a control liquid channel are formed in the lower body, an electromagnetism switch valve and an end cover are mounted on the lower body, a piston and a push bar are arranged in the lower body, the piston is connected with the push bar through bolts, and the piston is arranged in a piston cavity. According to the constant value pressure-reducing real-time sampling valve, the problem that on-site operation of real-time sampling of well cementation system cement slurry, drilling slurry and the like is inconvenient is solved, and the structure is simple, installation is convenient, operation is flexible, and labor intensity of workers is relieved greatly.

Description

technical field [0001] The invention relates to a sampling device, in particular to a constant-value decompression real-time sampling valve. Background technique [0002] Sampling valve is a valve used to obtain medium samples in pipelines or equipment. In many occasions where chemical analysis of medium samples is often required, special sampling valves are often used. According to the working principle or performance of sampling, sampling valves are mainly divided into three types, including double opening valves, flange clip valves and sampling valves with insulation jackets, but they cannot effectively deal with complex molecular structures, viscosity Large fluids are prone to clogging problems, and are not suitable for high-pressure environments. The safety performance is unstable, and real-time sampling cannot be realized. Contents of the invention [0003] In order to overcome the problems existing in the existing tools, the object of the present invention is to pr...

AI Technical Summary

Problems solved by technology

According to the working principle or performance of sampling, sampling valves are mainly divided into three types, including double opening valves, flange clip valves and sampling valves with insulation jackets, but they cannot effectively deal with complex molecular structures, viscosity Large fluids are prone to clogging problems, and are not suitable for high-pressure environments. The safety performance is unstable and real-time sampling cannot be realized.

Images