CN213871385U

CN213871385U - Scouring-resistant pressure reducing valve

Info

Publication number: CN213871385U
Application number: CN202022755834.7U
Authority: CN
Inventors: 嵇建江; 汪鹏钰
Original assignee: Hangzhou Liangyu Pressure And Temperature Reducing Equipment Co ltd
Current assignee: Hangzhou Liangyu Pressure And Temperature Reducing Equipment Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-08-03
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a wash-resistant relief pressure valve, including valve body shell, spacing ring, installation pole and piston, the left side of valve body shell is provided with the medium entry, the right side of valve body shell is provided with the medium export, the inboard of valve body shell is provided with the cavity board, and the right side of cavity board is fixed with the bracing piece, the downside of valve body shell is provided with adjusts the seat, and adjusts the inboard of seat and install the regulation pole, adjust the upper end of pole and install the telescopic link, and the outside of telescopic link is provided with the stopper, spacing spring is installed to the upside of stopper, and spacing spring's upside is provided with the piston, the spacing ring is installed to the downside of cavity board. This resistant relief pressure valve that erodees can be resistant to erode, reduces the possibility that the piece that opens and shuts produces and drops, improves relief pressure valve life, and can carry out certain buffering to the impact that the medium velocity of flow produced, reduces the impaired possibility of valve body inner structure.

Description

Scouring-resistant pressure reducing valve

Technical Field

The utility model relates to a relief pressure valve technical field specifically is a wash-resistant relief pressure valve.

Background

The pressure reducing valve adjusts the flow of a medium by controlling the opening degree of a starting and closing part in a valve body, reduces the pressure of the medium and keeps the pressure behind the valve within a certain range, but most of the pressure reducing valves on the market still have some problems, such as:

be difficult to resistant erodeing for the piece that opens and shuts produces easily and drops and influence the relief pressure valve and use, and be not convenient for carry out certain buffering to the impact that the medium velocity of flow produced, lead to valve body inner structure impaired easily, consequently, the utility model provides a resistant pressure relief valve that erodees to solve the above-mentioned problem that proposes.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wash-resistant relief pressure valve to most relief pressure valves on the market that propose in solving above-mentioned background are difficult to wash-resistant, make the closure produce easily and drop and influence the relief pressure valve and use, and the impact that produces the medium velocity of flow of being not convenient for carries out certain buffering, leads to the impaired problem of valve body inner structure easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a wash-resistant relief pressure valve, includes valve body shell, spacing ring, installation pole and piston, the left side of valve body shell is provided with the medium entry, and the inboard of medium entry installs first buffering mouth, the right side of valve body shell is provided with the medium export, and the left end of medium export installs second buffering mouth, the inboard of valve body shell is provided with the cavity board, and the right side of cavity board is fixed with the bracing piece, the downside of valve body shell is provided with adjusts the seat, and adjusts the inboard of seat and install the regulation pole, adjust the upper end of pole and install the telescopic link, and the outside of telescopic link is provided with the stopper, spacing spring is installed to the upside of stopper, and spacing spring's upside is provided with the piston, the spacing ring is installed to the downside of cavity board, and the inboard of spacing ring is provided with the installation pole fixed with the piston upside.

Preferably, the longitudinal section of the first buffer nozzle is trapezoidal, and the first buffer nozzle and the medium inlet form an integrated structure through welding.

Preferably, the longitudinal section of the mounting rod is T-shaped, and the mounting rod is in sliding connection with the limiting ring.

Preferably, the support rod is obliquely arranged, and the support rod is fixed to the cavity plate at an equal angle with respect to the center of the second buffer nozzle.

Preferably, the inner side of the piston is provided with a groove-shaped structure, the groove-shaped structure is internally and equiangularly fixed with a mounting rod, the piston is elastically connected with the limiting block through a limiting spring, and the piston and the limiting ring are in nested connection.

Preferably, the adjusting rod is in threaded connection with the adjusting seat, and the adjusting rod is in rotary connection with the telescopic rod.

Compared with the prior art, the beneficial effects of the utility model are that: the scouring-resistant pressure reducing valve can resist scouring, reduce the possibility of falling off of the opening and closing piece, prolong the service life of the pressure reducing valve, buffer the impact generated by the flow velocity of a medium to a certain extent and reduce the possibility of damaging the internal structure of the valve body;

1. the T-shaped longitudinal section of the mounting rod and the equal-angle arrangement of the mounting rod relative to the center of the piston enable a good mounting and limiting structure to be formed between the piston and the cavity plate, so that the scouring resistance of the piston is improved, and the service life of the pressure reducing valve is prolonged;

2. the upstream medium introduced into the medium inlet can be blocked to a certain extent through the trapezoidal longitudinal section of the first buffering nozzle, and the medium can be guided to a certain extent through the inner wall of the first buffering nozzle, so that the impact force of the medium is reduced, and the possibility of damaging the internal structure of the valve body is reduced;

3. through the elastic connection between piston and the stopper, can increase the laminating dynamics of piston to the spacing ring, and through the slope setting of bracing piece and the angle setting such as of bracing piece, can improve the shock-resistant ability of cavity board.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the limiting block and the telescopic rod of the present invention;

FIG. 3 is a schematic view of the structure of the installation rod connected to the piston;

fig. 4 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention.

In the figure: 1. the valve body shell, 2, spacing ring, 3, spacing spring, 4, spacing block, 5, medium inlet, 6, first buffering mouth, 7, installation pole, 8, cavity board, 9, bracing piece, 10, medium outlet, 11, second buffering mouth, 12, piston, 13, telescopic link, 14, regulation pole, 15, regulation seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless the direction is defined separately, the directions of up, down, left, right, front, back, etc. referred to herein are the directions of up, down, left, right, front, back, etc. in the drawings of the present invention, and are herein incorporated by reference.

Referring to fig. 1-4, the present invention provides a technical solution: a scouring-resistant pressure reducing valve comprises a valve body shell 1, a limiting ring 2, a limiting spring 3, a limiting block 4, a medium inlet 5, a first buffering nozzle 6, an installation rod 7, a cavity plate 8, a supporting rod 9, a medium outlet 10, a second buffering nozzle 11, a piston 12, a telescopic rod 13, an adjusting rod 14 and an adjusting seat 15, wherein the left side of the valve body shell 1 is provided with the medium inlet 5, the inner side of the medium inlet 5 is provided with the first buffering nozzle 6, the right side of the valve body shell 1 is provided with the medium outlet 10, the left end of the medium outlet 10 is provided with the second buffering nozzle 11, the inner side of the valve body shell 1 is provided with the cavity plate 8, the right side of the cavity plate 8 is fixedly provided with the supporting rod 9, the lower side of the valve body shell 1 is provided with the adjusting seat 15, the inner side of the adjusting seat 15 is provided with the adjusting rod 14, the upper end of the adjusting rod 14 is provided with the telescopic rod 13, and the outer side of the telescopic rod 13 is provided with the limiting block 4, a limiting spring 3 is arranged on the upper side of the limiting block 4, a piston 12 is arranged on the upper side of the limiting spring 3, a limiting ring 2 is arranged on the lower side of the cavity plate 8, and an installation rod 7 for fixing the upper side of the piston 12 is arranged on the inner side of the limiting ring 2;

as shown in fig. 1, the longitudinal section of the first buffering nozzle 6 is trapezoidal, and the first buffering nozzle 6 and the medium inlet 5 form an integrated structure by welding, so that the upstream medium introduced into the medium inlet 5 can be blocked to a certain extent, and the medium can be drained to a certain extent when passing through the inner wall of the first buffering nozzle 6, so as to reduce the impact force thereof;

as in fig. 3 and 4, the groove-shaped structure has been seted up to the inboard of piston 12, and the interior equal angle of this groove-shaped structure is fixed with installation pole 7, piston 12 constitutes elastic connection through spacing spring 3 and stopper 4, and piston 12 is nested connection with spacing ring 2, can increase the laminating dynamics of piston 12 to spacing ring 2, as in fig. 1, adjust pole 14 and adjust seat 15 and be threaded connection, and adjust pole 14 and telescopic link 13 and be connected for rotating, be convenient for adjust the laminating dynamics between piston 12 and the spacing ring 2.

The working principle is as follows: when the scouring-resistant pressure reducing valve is used, firstly, as shown in figure 1, a medium flows into a valve body shell 1 from a medium inlet 5, certain blocking can be carried out on an upstream medium led in the medium inlet 5 through a trapezoidal longitudinal section of a first buffering nozzle 6, certain drainage can be carried out on the medium when the medium passes through the inner wall of the first buffering nozzle 6, the impact force of the medium is reduced, meanwhile, the impact-resistant capability of a cavity plate 8 can be improved through the inclined arrangement of a supporting rod 9 and the equal-angle arrangement of the supporting rod 9, and then as shown in figures 2, 3 and 4, the piston 12 can move downwards under the impact of pressure through the elastic connection formed by the limiting spring 3 and the limiting block 4, so that the piston 12 is not attached to a limiting ring 2 any more, and the impact force of the medium can be buffered, and then the medium which is about to flow out of a medium outlet 10 is buffered through a second buffering nozzle 11, when other pressure requirements or flow rate requirements are required, the adjusting rod 14 can be rotated, the distance between the telescopic rod 13 and the piston 12 can be adjusted through threaded connection with the adjusting seat 15, and therefore the pressure of the limiting spring 3 on the piston 12 is adjusted to adapt to different pressure requirements or flow rate requirements, and the use method of the scouring-resistant pressure reducing valve is used.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a resistant washing relief pressure valve, includes valve body shell (1), spacing ring (2), installation pole (7) and piston (12), its characterized in that: the valve body comprises a valve body shell (1), a medium inlet (5) is arranged on the left side of the valve body shell (1), a first buffering nozzle (6) is installed on the inner side of the medium inlet (5), a medium outlet (10) is arranged on the right side of the valve body shell (1), a second buffering nozzle (11) is installed at the left end of the medium outlet (10), a cavity plate (8) is arranged on the inner side of the valve body shell (1), a supporting rod (9) is fixed on the right side of the cavity plate (8), an adjusting seat (15) is arranged on the lower side of the valve body shell (1), an adjusting rod (14) is installed on the inner side of the adjusting seat (15), a telescopic rod (13) is installed at the upper end of the adjusting rod (14), a limiting block (4) is arranged on the outer side of the telescopic rod (13), a limiting spring (3) is installed on the upper side of the limiting block (4), and a piston (12) is arranged on the upper side of the limiting spring (3), the limiting ring (2) is installed on the lower side of the cavity plate (8), and an installation rod (7) which is fixed on the upper side of the piston (12) is arranged on the inner side of the limiting ring (2).

2. A flush resistant pressure relief valve as claimed in claim 1, wherein: the longitudinal section of the first buffering nozzle (6) is trapezoidal, and the first buffering nozzle (6) and the medium inlet (5) form an integrated structure through welding.

3. A flush resistant pressure relief valve as claimed in claim 1, wherein: the longitudinal section of the mounting rod (7) is T-shaped, and the mounting rod (7) is in sliding connection with the limiting ring (2).

4. A flush resistant pressure relief valve as claimed in claim 1, wherein: the supporting rod (9) is obliquely arranged, and the supporting rod (9) is fixed on the cavity plate (8) at an equal angle relative to the center of the second buffering nozzle (11).

5. A flush resistant pressure relief valve as claimed in claim 1, wherein: the inner side of the piston (12) is provided with a groove-shaped structure, the groove-shaped structure is internally fixed with a mounting rod (7) at an equal angle, the piston (12) is elastically connected with the limiting block (4) through a limiting spring (3), and the piston (12) is connected with the limiting ring (2) in a nested manner.

6. A flush resistant pressure relief valve as claimed in claim 1, wherein: the adjusting rod (14) is in threaded connection with the adjusting seat (15), and the adjusting rod (14) is in rotary connection with the telescopic rod (13).