CN211649259U

CN211649259U - Opening-adjustable regulating valve sleeve

Info

Publication number: CN211649259U
Application number: CN202020036577.9U
Authority: CN
Inventors: 赵常春; 王学朋; 王丹丹; 崔学智; 姜军
Original assignee: Wuzhong Instrument Engineering Technology Service Co ltd; Wuzhong Instrument Co Ltd
Current assignee: Wuzhong Instrument Engineering Technology Service Co ltd; Wuzhong Instrument Co Ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-10-09
Anticipated expiration: 2030-01-08

Abstract

The utility model relates to an governing valve sleeve with adjustable aperture has the cover barrel, cover barrel perisporium on the symmetry seted up two sets of through-holes, every group through-hole is arranged seven rows into at vertical equidistance, is arranged nine rows into at horizontal equidistance, every group through-hole is triangle-shaped shrink form and distributes, is 4mm from eight row's through-hole diameters up down, the ninth row through-hole diameter is 5 mm. The utility model discloses can satisfy the requirement that the heavy-calibre valve realized little flow control, through-hole diameter wherein can be according to operating mode flow and pressure design, and this cover barrel in use can play noise reduction to reduce compressible fluidic noise, have pressure drop loss little, the noise is low, anti cavitation can advantage such as strong, more be applicable to the medium and be the gaseous occasion of high pressure difference.

Description

Opening-adjustable regulating valve sleeve

Technical Field

The utility model belongs to the technical field of the valve control technique and specifically relates to an adjusting valve sleeve with adjustable aperture.

Background

The regulating valve is a terminal field regulating instrument in an automatic control system, is arranged on a process pipeline and controls process parameters according to set requirements. The sleeve of the sleeve type regulating valve is in clearance fit with the valve clack, a plurality of throttling windows are formed in the wall of the sleeve, the opening degree of the regulating valve is adjusted in a window mode, the opening degree of the valve is too small, the size of the window cannot be changed to increase the opening degree of the valve under the condition that the drift diameter of the valve is not changed, and therefore the flow capacity is reduced and small flow regulation is achieved. Therefore, although the flow capacity of the regulating valve adopting window type regulation is large, the opening degree of the valve cannot be increased by reducing the size of the window.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: in order to overcome the deficiency among the prior art, the utility model provides an adjusting valve sleeve with adjustable aperture solves the unable problem that realizes little flow control of heavy-calibre valve.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an adjusting valve sleeve with adjustable aperture, has the cover barrel, cover barrel perisporium on the symmetry seted up two sets of through-holes, every group through-hole is arranged into seven rows, is arranged into nine rows in horizontal equidistance at vertical equidistance, every group through-hole is triangle-shaped shrink form and distributes, is 4mm from eight row through-hole diameters up down, the ninth row through-hole diameter is 5 mm.

Furthermore, the centers of the through holes in two adjacent rows are distributed in a vertically staggered manner, and the centers of the through holes in two adjacent rows are distributed in a horizontally staggered manner.

Preferably, the number of the through holes with the diameter of 4mm is thirty eight, and the number of the through holes with the diameter of 5mm is eight.

The utility model has the advantages that: the utility model discloses can satisfy the requirement that the heavy-calibre valve realized little flow control, through-hole diameter wherein can be according to operating mode flow and pressure design, and this cover barrel in use can play noise reduction to reduce compressible fluidic noise, have pressure drop loss little, the noise is low, anti cavitation can advantage such as strong, more be applicable to the medium and be the gaseous occasion of high pressure difference.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the arrangement of the through holes of the present invention.

In the figure: 1. sleeve body, 2 through-hole.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The opening-adjustable regulating valve sleeve shown in fig. 1 and 2 is provided with a sleeve body 1, wherein two groups of through holes 2 are symmetrically formed in the peripheral wall of the sleeve body 1, each group of through holes 2 are longitudinally and equidistantly arranged into seven rows and transversely and equidistantly arranged into nine rows, the centers of the through holes 2 in two adjacent rows are vertically distributed in a staggered manner, the centers of the through holes 2 in two adjacent rows are horizontally distributed in a staggered manner, and each group of through holes 2 is in triangular contraction-shaped distribution on the plane.

From the bottom up eight rows of through-hole 2 diameters be 4mm, and the ninth row of through-hole 2 diameters is 5mm, and wherein the through-hole 2 quantity that the diameter is 4mm is thirty eight, and the through-hole 2 quantity that the diameter is 5mm is eight.

The total flow area of the thirty-eight through holes 2 having a diameter of 4mm and the eight through holes 2 having a diameter of 5mm is 634 square millimeters. When the opening of the valve of the regulating valve is regulated between 10 and 20 percent, namely when the flow is regulated at a small flow, the regulating valve is regulated by eight through holes 2 with the diameter of 4mm in the first row, the second row and the third row, and the rest through holes 2 from the fourth row to the ninth row are in a closed state, so that the flow area can reach 100.5 square millimeters; when the valve opening of the regulating valve is required to be regulated between 30 and 70 percent, the flow area can reach 402 square millimeters by regulating through thirty-two through holes 2 with the diameters of 4mm from the first row to the seventh row; when the valve opening of the regulating valve requires more than 70 percent of regulation, namely, the maximum flow is regulated, the flow area can reach 634 square millimeters which is the maximum by regulating thirty-eight through holes 2 with the diameter of 4mm in the first to eighth rows and eight through holes 2 with the diameter of 5mm in the ninth row at the top.

The utility model discloses can satisfy the requirement that the heavy-calibre valve realized little flow control, 2 diameters of through-hole wherein can be according to operating mode flow and pressure design, and 1 in use of this cover barrel can play the noise reduction effect to reduce compressible fluidic noise, have pressure drop loss little, the noise is low, anti cavitation can advantage such as strong, more be applicable to the medium and be the gaseous occasion of high pressure difference.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an adjustable regulating valve sleeve of aperture has cover barrel (1), characterized by: the sleeve barrel body (1) perisporium on the symmetry seted up two sets of through-hole (2), every group through-hole (2) are arranged into seven rows at vertical equidistance, are arranged into nine rows at horizontal equidistance, every group through-hole (2) are the triangle-shaped and contract the form and distribute, eight rows of through-hole (2) diameters from bottom to top are 4mm, the ninth row through-hole (2) diameter is 5 mm.

2. The opening adjustable type modulator valve sleeve as claimed in claim 1, wherein: the centers of the through holes (2) in two adjacent rows are distributed in a vertically staggered manner, and the centers of the through holes (2) in two adjacent rows are distributed in a horizontally staggered manner.

3. The opening adjustable type modulator valve sleeve as claimed in claim 2, wherein: the number of the through holes (2) with the diameter of 4mm is thirty-eight, and the number of the through holes (2) with the diameter of 5mm is eight.