CN220816633U

CN220816633U - Chemical pipeline filtering pressure reducing valve

Info

Publication number: CN220816633U
Application number: CN202322605703.4U
Authority: CN
Inventors: 刘晓准; 蒋春鹏; 胡德才; 郭悦东; 徐冕
Original assignee: Hefei Dingcai Technology Co ltd
Current assignee: Hefei Dingcai Technology Co ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2024-04-19
Anticipated expiration: 2033-09-25

Abstract

The utility model discloses a chemical pipeline filtering pressure reducing valve, which comprises a valve body, an adjusting valve component and a diaphragm assembly, wherein the adjusting valve component and the diaphragm assembly are arranged in an upper cavity of the valve body, the adjusting valve component acts on the upper end face of the diaphragm assembly, an inlet and an outlet are also arranged on the valve body, a filter is also arranged in a lower cavity of the valve body, a medium flowing in from the inlet enters the lower cavity or the filter cavity of the valve body, and after being filtered by the filter, the medium flows to the outlet through a gap between the diaphragm assembly and the valve body. The utility model combines the filter and the pressure reducing valve together, realizes the dual functions of single equipment, ensures the purity and stability of the pipeline medium, can control the flow and pressure of the medium, saves the installation steps, space and cost, and solves the defects of troublesome installation in a narrow space and inconvenient pipeline maintenance.

Description

Chemical pipeline filtering pressure reducing valve

Technical Field

The utility model relates to the technical field of pipeline transportation, in particular to a chemical pipeline filtering pressure reducing valve.

Background

The prior filtering pressure reducing valve comprises a pressure reducing valve body, wherein a water inlet pipeline is communicated with the left side of the pressure reducing valve body, a water outlet pipeline is communicated with the right side of the pressure reducing valve body, and a filtering mechanism and an anti-deposition mechanism are arranged on the upper surface of the water inlet pipeline. The prior filtering pressure reducing valve has the following problems:

(1) The filter is separated from the pressure reducing valve and is not an integral structural member, and one side of the filter is damaged and is complex and troublesome to maintain.

(2) The filter screen is directly connected at the side of the water inlet pipeline, and although the anti-deposition mechanism can relieve certain impact force to a certain extent, the force for slowing down the water flow speed is very little, and the damage of the filter screen is easy to cause.

(3) Under the action of water flow, the deposition preventing mechanism has an unobvious deposition effect and is easy to block at the front end of the filter screen, so that pressure difference occurs at two sides of the filter screen, and the filter screen is damaged.

Disclosure of utility model

In order to overcome the technical problems of the prior filtering pressure reducing valve, the utility model provides a chemical pipeline filtering pressure reducing valve.

The utility model adopts the following technical scheme:

The utility model provides a chemical pipeline filters relief pressure valve, includes the valve body and arranges in adjusting valve subassembly and the diaphragm sub-unit in the cavity of valve body upper portion, adjusting valve subassembly acts on diaphragm sub-unit (3) up end department, still be equipped with import and export on the valve body, still be equipped with the filter in the lower part cavity of valve body, by the medium of import inflow gets into the lower part cavity of valve body, after the filter filters, again through the clearance flow between diaphragm sub-unit and the valve body extremely the export.

Further, an opening structure is formed at the lower end of the valve body, a filter cavity is detachably connected to the opening, the upper end of the filter cavity is in sealing connection with the lower end of the valve body, the filter is of a cylindrical structure with one open end, the filter is arranged below the membrane assembly, an inner cavity of the filter is communicated with a gap between the membrane assembly and the valve body when the filter is in an open state, and the opening end of the filter is detachably connected with the bottom end of the valve body.

Further, a conical bulge extending upwards is formed in the bottom area of the filter cavity, the filter is surrounded around the conical bulge, and the lower end of the filter is detachably connected with the bottom of the filter cavity; when the regulating valve component applies downward acting force to the diaphragm assembly, a gap communicated with the outlet is formed between the diaphragm assembly and the valve body, and the lower end of the diaphragm assembly abuts against the top end of the conical protrusion.

Furthermore, a drain outlet is arranged at the bottom end of the filter cavity, the drain outlet is communicated with the outer space of the filter, and a screw plug is arranged at the drain outlet.

The valve body comprises an upper valve body and a lower valve body, the regulating valve assembly is arranged in a cavity of the upper valve body and comprises a regulating valve rod, a spring baffle and a regulating spring, the regulating valve rod extends from the upper end of the valve body to the valve body and is in threaded connection with the valve body, the upper end of the regulating spring is arranged at the lower end face of the spring baffle, the lower end of the regulating spring is connected with the diaphragm assembly, and the lower end of the regulating valve rod abuts against the spring baffle.

The technical scheme of the utility model has the following advantages:

A. According to the utility model, the filter is directly arranged in the pressure reducing valve body, so that the impact force of the filter is obviously improved under the buffer of the filter cavity, and the service life of the filter (filter screen) is prolonged; the bottom of the filter cavity is provided with an anti-deposition function, and a drain outlet at the bottom can be opened to drain to a certain extent; meanwhile, the pressure reducing valve has the double functions of single equipment, and the valve body adopts an upper-lower split structure, so that the internal parts are convenient to detach, replace and maintain.

B. The utility model combines the filter and the pressure reducing valve together, realizes the dual functions of single equipment, ensures the purity and stability of the pipeline medium, can control the flow and pressure of the medium, saves the installation steps, space and cost, and solves the defects of troublesome installation in a narrow space and inconvenient pipeline maintenance.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required for the embodiments will be briefly described, and it will be apparent that the drawings in the following description are some embodiments of the present utility model and that other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a filter pressure reducing valve according to the present utility model;

FIG. 2 is a schematic view of the filter cavity in FIG. 1;

FIG. 3 is a block diagram of the connections between the diaphragm assembly, the adjustment spring and the spring retainer.

The figures are identified as follows:

1-valve body, 1 a-inlet, 1 b-outlet

11-Upper valve body, 12-lower valve body

2-Regulating valve assembly

21-Adjusting valve rod, 22-spring baffle, 23-adjusting spring, 24-locking nut

A 25-O-shaped ring is arranged on the inner side of the sleeve,

A 3-membrane assembly, wherein the membrane assembly comprises a plurality of membrane elements,

4-Filter

5-Filter Chamber

51-Drain outlet

6-Conical protrusions; 7-a screw plug; 8-a gasket; 9-sealing rings.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the mechanical connection and the electrical connection can be adopted; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, the utility model provides a chemical pipeline filtering pressure reducing valve, which comprises a valve body 1, an adjusting valve component 2 and a diaphragm assembly 3, wherein the adjusting valve component 2 and the diaphragm assembly 3 are arranged in an upper cavity of the valve body 1, the adjusting valve component 2 acts on the upper end surface of the diaphragm assembly 3, and the adjusting valve component 2 controls the opening and closing of the diaphragm assembly 3. The valve body 1 is also provided with an inlet 1a and an outlet 1b, a filter 4 is further arranged in the lower cavity of the valve body 1, after the diaphragm assembly 3 is opened by the adjusting valve assembly 2, an annular gap between the diaphragm assembly 3 and the valve body 1 is completely enclosed by the filter 4, and a medium flowing in from the inlet 1a enters the lower cavity of the valve body 1, is filtered by the filter 4, and flows to the outlet 1b through the gap between the diaphragm assembly 3 and the valve body 1. The valve body 1 adopted by the utility model comprises an upper valve body 11 and a lower valve body 12, wherein the upper valve body 11 and the lower valve body 12 form a whole, and a detachable connecting structure is preferably adopted. The adjusting valve assembly 2 is arranged in a cavity of the upper valve body 11 (namely, an upper cavity of the valve body), and comprises an adjusting valve rod 21, a spring baffle 22 and an adjusting spring 23, wherein the adjusting valve rod 21 extends into the valve body 1 from the upper end of the valve body 1 and is in threaded connection with the valve body 1, the movement of the adjusting valve assembly in the axial direction is controlled through a knob at the uppermost end, after the position is adjusted, the adjusting valve assembly is locked in position through a locking nut 24, an O-shaped ring 25 for sealing is arranged at the upper end of the locking nut and the upper end of the upper valve body 11, and the locking nut 24 is pressed on the O-shaped ring 25. The upper end of the adjusting spring 23 is arranged at the lower end face of the spring baffle 22, the upper end of the adjusting spring 23 and the lower end of the spring baffle are preferably detachably and fixedly connected, the lower end of the adjusting spring 23 is connected with the diaphragm assembly 3, as shown in fig. 3, the lower end of the adjusting spring 23 can be conveniently replaced by adopting a detachable connection mode, the lower end of the adjusting valve rod 21 is propped against the spring baffle 22, the position of the adjusting valve rod 21 is adjusted up and down, the size of a gap between the diaphragm assembly 3 and the bottom of the upper valve body 11 can be well controlled, and then the medium flow can be well controlled.

The utility model forms an opening structure at the lower end of the lower valve body 12, and is detachably connected with a filter cavity 5 at the opening, and the structure of the filter cavity 5 is shown in figure 2. The upper end of the filter cavity 5 is in sealing connection with the lower end of the lower valve body 12, a sealing ring 9 is arranged between the upper end of the filter cavity 5 and the lower valve body, the filter 4 is of a cylindrical structure with one end open, such as a cylindrical structure with one end open, of course, other structural forms can be adopted, the filter cavity is arranged below the membrane assembly 3, the inner cavity of the filter cavity is communicated with a gap between the membrane assembly 3 and the upper valve body 11 when the filter cavity is in an open state, and the open end of the filter 4 is in detachable connection with the bottom end of the upper valve body 11.

As shown in fig. 2, in order to better buffer the filtered medium, an upwardly extending conical protrusion 6 is formed at the bottom area of the filter cavity 5, the filter 4 is surrounded around the conical protrusion 6, i.e. the conical protrusion 6 is located at the middle of the filter 4, and the lower end of the filter 4 is preferably detachably connected to the bottom of the filter cavity 5; when the regulating valve component 2 applies downward force to the diaphragm assembly 3, a gap communicated with the outlet 1b is formed between the diaphragm assembly 3 and the upper valve body 11, the lower end of the diaphragm assembly 3 abuts against the top end of the conical protrusion 6, and the diaphragm assembly 3 is better positioned.

In addition, in order to facilitate cleaning of the filtering position in the lower cavity formed by the lower valve body and the filtering cavity, the utility model is also provided with the drain outlet 51 at the bottom end of the filtering cavity 5, the drain outlet 51 is communicated with the outer space of the filter 4, the drain outlet 51 is provided with the screw plug 7, when the deposited dirt reaches a certain amount, the bottom drain outlet can be opened for draining, and the drain outlet can be opened by rotating the screw plug 7, so that the deposited dirt in the lower cavity can be rapidly discharged.

The filter adopted by the utility model can customize a multi-stage filter screen according to the requirement, and the filter screen is fixed on the pressure reducing valve body and is firm and firm; the filter is convenient to detach, and after the filter cavity is detached from the lower valve body, the filter body can be directly detached from the valve body after the filter fixing screw is loosened.

The specific operation steps are as follows: after the upper adjusting valve rod extrudes the spring baffle, the adjusting spring presses down the diaphragm assembly, the diaphragm assembly is opened, the upper valve body is communicated with the filter cavity, and the pressure and flow of medium flowing out can be well adjusted by controlling the size of the communicating gap. After the upper regulating valve rod is regulated, medium enters the filter cavity from the inlet end, the filter cavity at the lower part is filled under the slowing down of the inner wall of the valve body of the pressure reducing valve, large particles/heavier particles are deposited at the bottom of the filter cavity, and then the large particles/heavier particles flow out through a gap between the membrane assembly and the upper valve body after being filtered by the filter; each time the filtered large/heavier particles are discharged by opening the screw plug. Of course, through dismantling the filter cavity from lower valve body, can clear up the filter and filter cavity inside, convenient to use, cost of manufacture are low.

The utility model is applicable to the prior art where none of the details are mentioned.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present utility model.

Claims

1. The utility model provides a chemical pipeline filters relief pressure valve, includes valve body (1) and arranges in regulation valve subassembly (2) and diaphragm sub-unit (3) in valve body (1) upper portion cavity, regulation valve subassembly (2) act on diaphragm sub-unit (3)'s up end department, still be equipped with import (1 a) and export (1 b) on valve body (1), a serial communication port, still be equipped with filter (4) in valve body (1)'s the lower part cavity, by the medium of import (1 a) inflow gets into valve body (1) lower part cavity, through behind filter (4) filters, again through clearance flow between diaphragm sub-unit (3) and valve body (1) extremely export (1 b).

2. The chemical pipeline filtering pressure reducing valve according to claim 1, wherein an opening structure is formed at the lower end of the valve body (1), a filtering cavity (5) is detachably connected at the opening, the upper end of the filtering cavity (5) is in sealing connection with the lower end of the valve body (1), the filter (4) is of a cylindrical structure with one open end, the filter is arranged below the membrane assembly (3), an inner cavity of the filter is communicated with a gap between the membrane assembly (3) and the valve body (1) when the filter is in an open state, and the opening end of the filter (4) is detachably connected with the bottom end of the valve body (1).

3. The chemical pipeline filtering pressure reducing valve according to claim 2, wherein a conical protrusion (6) extending upwards is formed at the bottom area of the filtering cavity (5), the filter (4) is wrapped around the conical protrusion (6), and the lower end of the filter (4) is detachably connected with the bottom of the filtering cavity (5); when the regulating valve component (2) applies downward acting force to the membrane assembly (3), a gap communicated with the outlet (1 b) is formed between the membrane assembly (3) and the valve body (1), and the lower end of the membrane assembly (3) abuts against the top end of the conical protrusion (6).

4. A chemical pipeline filtering pressure reducing valve according to claim 2 or 3, characterized in that a drain outlet (51) is arranged at the bottom end of the filtering cavity (5), the drain outlet (51) is communicated with the outer space of the filter (4), and a screw plug (7) is arranged at the drain outlet (51).

5. The chemical pipeline filtering pressure reducing valve according to claim 1, wherein the valve body (1) comprises an upper valve body (11) and a lower valve body (12), the regulating valve assembly (2) is arranged in a cavity of the upper valve body (11) and comprises a regulating valve rod (21), a spring baffle plate (22) and a regulating spring (23), the regulating valve rod (21) extends from the upper end of the valve body (1) into the valve body (1) and is in threaded connection with the valve body (1), the upper end of the regulating spring (23) is arranged at the lower end face of the spring baffle plate (22), the lower end of the regulating spring (23) is connected with the diaphragm assembly (3), and the lower end of the regulating valve rod (21) abuts against the spring baffle plate (22).