Long-service-life anti-locking high-temperature hard sealing one-way valve

Abstract

The invention provides a long-service-life anti-locking high-temperature hard sealing one-way valve, and relates to the technical field of one-way valves. The long-service-life anti-locking high-temperature hard sealing one-way valve solves the technical problem that an existing one-way valve in the prior art is poor in use effect. The long-service-life anti-locking high-temperature hard sealing one-way valve comprises an integrated valve body and a valve element assembly, wherein the integrated valve body is internally provided with an inflow cavity, a valve element mounting cavity and an outflow cavity which sequentially communicate, and the valve element mounting cavity comprises a conical cavity; and the valve element assembly comprises a conical surface valve element, an elastic return element and a valve frame, the conical surface valve element is arranged in the conical cavity in a sliding mode, the valve frame is connected with the conical surface valve element, and the elastic return element is arranged between the conical surface valve element and the valve frame. According to the long-service-life anti-locking high-temperature hard sealing one-way valve, by means of the integrated valve body, the problem that the sealing performance of an existing split valve body is affected due to uneven assembly and thermal deformation can be effectively solved, and conical hard sealing can be formed through the conical surface valve element and the conical cavity; during conduction, impurities are not prone to blockage, so that circulation is smooth; during blocking, the surface contact is achieved, so that closure effects are remarkable; and meanwhile, the action process is stable, so that the service life is long.

Description

technical field [0001] The invention relates to the technical field of one-way valves, in particular to a long-life anti-jamming high-temperature hard-sealed one-way valve. Background technique [0002] One-way valve, also known as check valve or check valve, is mostly used for one-way flow of liquid or gas, and is widely used. [0003] The existing Chinese patent documents disclose a high-pressure hard-sealed check valve for natural gas compressors (its patent number is ZL201420401749.2). This invention adopts a two-stage valve body design (i.e. split design). There is a cup-shaped spool, the bottom of the cup cooperates with the valve body to form a one-way cut-off seal, the cup wall is provided with a circle of air holes, and the inside of the cup-shaped spool is provided with a compression spring; this invention has at least the following defects: one is The split-type design cannot guarantee the concentricity requirements, and the thermal deformation of each section of...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a long-life anti-seize high-temperature hard-sealed one-way valve to solve the technical problem of the existing one-way valve in the prior art that the use effect is poor; among the many technical solutions provided by the present invention The many technical effects that can be produced by the optimal technical solution (the elastic return element is set as a compression spring, during use, the deformation of the elastic return element is compression deformation, and the return effect of the cone valve core is remarkable, and it is convenient for elastic return. Installation of components; the diameter of the inflow cavity gradually decreases along the medium flow direction, and the outflow cavity gradually increases along the medium flow direction to facilitate the flow of the medium; the inner walls of the inflow cavity and the outflow cavity are provided with threads to facilitate the connection of the one-way valve with other pipelines; the valve The frame is connected with the cone valve core through the connecting column. On the one hand, the connecting column has the function of connecting, and on the other hand, it makes the action process of the valve frame and the cone valve core more stable, which can effectively reduce the wear of the valve frame and the cone valve core and improve the service life. For a long time; the installation chamber of the valve core includes a valve frame movable chamber and a transition chamber. The valve frame movable chamber is used for the accommodation and movement of the valve frame. The ring-shaped abutment part of the position element facilitates the reset of the cone valve core; the valve frame includes a support frame, and the support frame includes a main body and a prism part. The clogging phenomenon of debris during the use of the check valve; the valve core installation cavity includes the communication cavity, the valve frame movable cavity, the transition cavity, the tapered cavity and the communication cavity are arranged in sequence along the flow direction of the medium. During the conduction process, the medium acts For the valve frame and the cone valve core, the cone valve core also has the function of limiting, the valve core assembly is firmly installed, and the one-way flow effect is remarkable; the support frame is provided with a mounting seat, and the elastic return element is sleeved on the mounting seat. The connecting column and the mounting seat are threaded, the one-way valve structure is firm, and the assembly is convenient; the conical cavity, the connecting cavity, the transition cavity and the movable cavity of the valve frame are arranged in sequence along the flow direction of the medium. The medium mainly acts on the conical valve core, and the valve frame mainly It acts as a limiter; the valve core is provided with a mounting seat, the elastic return element is sleeved on the mounting seat, and the two ends of the mounting seat are respectively threaded with the valve core and the connecting column, the one-way valve is easy to assemble and has various structures, etc.); details see below

Images