Labyrinth type adjusting valve element with temperature control function

Abstract

The invention provides a labyrinth type adjusting valve element with a temperature control function. According to the structure, from top to bottom, of the labyrinth type adjusting valve element, the labyrinth type adjusting valve element only comprises a top cover, functional parts and a base, or comprises a top cover, functional parts, partition plate parts and a base; all layers are of an annular disc structure, and the functional parts and the partition plate parts are arranged between the top cover and the base alternately; groove channels are formed in the two faces of each functional part, wherein one face of each functional part is a high-pressure medium working face, and the groove channels on the face enable the inner wall and the outer wall to communicate to form high-pressure medium outlets / inlets; the other face of each functional part is a temperature control medium working face, and temperature control medium outlets / inlets are formed in the positions, corresponding to the functional parts, of the partition plate parts and communicate through the groove channels on the corresponding temperature control medium working faces; the top cover is provided with temperature control medium outlets / inlets, and the lower surface of the top cover is provided with temperature control medium outlet / inlet grooves. According to the adjusting valve element, the heat expansion and cold contraction effect of a pressure reducing valve is relieved, the matching precision of a heat exchange valve element in the operation process is improved, and the outlet pressure of the pressure reducing valve is finely adjusted within a small range.

Description

technical field [0001] The invention relates to the technical field of regulating valves, in particular to a labyrinth regulating valve core with a temperature control function. Background technique [0002] Regulating valve is a commonly used valve, the main function is to adjust the graft pressure, flow, temperature and other parameters. The main structure of the regulating valve is composed of valve body, valve seat, valve core and valve cover. Due to the fast flow rate of the medium flowing through the valve seat, the noise generated is large. At the same time, the surface of the valve core and valve seat is impacted by the medium, and the valve core and valve seat are easily eroded, cavitated or flashed. The higher the temperature, the shorter the service life of the spool and seat, and it may also be affected by vibration and noise. In view of the above problems, although scientific and technological workers have proposed some new regulating valve structures, namely ...

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Problems solved by technology

[0003] In view of the above problems, the present invention provides a labyrinth regulating valve spool with temperature control function, which aims to solve the problem that the high temperature and high pressure of the medium affect the life of the equipment and the outlet pressure has a certain step, which cannot achieve fine control in a small range. question

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