CN218564492U

CN218564492U - High-cleanness diaphragm pressure-regulating safety valve

Info

Publication number: CN218564492U
Application number: CN202222708510.7U
Authority: CN
Inventors: 项有春
Original assignee: ZHEJIANG KEERJIAN LIGHT INDUSTRIAL MACHINERY CO LTD
Current assignee: ZHEJIANG KEERJIAN LIGHT INDUSTRIAL MACHINERY CO LTD
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-03-03
Anticipated expiration: 2032-10-14

Abstract

The utility model discloses a high clean diaphragm pressure regulating relief valve, including the diaphragm valve body, the inboard top of diaphragm valve body is provided with the diaphragm, the top of diaphragm valve body is provided with the valve gap, the inside of valve gap is run through and is provided with the valve rod, the below threaded connection of valve rod has the case, the lower extreme and the diaphragm of case contact, the top of valve rod is provided with the backing plate, the top of backing plate is provided with the spring, and this relief valve only has diaphragm valve body, diaphragm with the part of material contact, and the diaphragm is a monoblock area shape rubber, and the valve body is inside to be the circular arc transition, and smooth finish reaches 0.3 mu m, makes the material of flowing through not remain, does not have the wall built-up, and is cleaner.

Description

High-cleanness diaphragm pressure regulating safety valve

Technical Field

The utility model relates to a relief valve field, in particular to high clean diaphragm pressure regulating relief valve.

Background

The safety valve is a special valve, wherein the opening and closing part is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value. The safety valve is mainly used for boiler, pressure container and pipeline, and its control pressure is not greater than specified value, so that it can play important role in protecting personal safety and equipment operation. The injection safety valve can be used only after a pressure test;

the existing pressure regulating safety valve has more parts in contact with materials, such as a valve body, a valve core, a valve rod, a valve cover and a valve core sealing ring, when the number of the parts in contact with the materials in the valve door is more, the sanitary cleanliness of the valve body is lower, the valve core and the valve rod are in a threaded connection structure, the threaded connection is easy to remain the materials, the cleaning is not clean, the sanitation cleanliness is high, the existing pressure regulating safety valve can not meet the requirements in a high-microbial-control process pipeline system, the excessive microorganisms are easy to exceed, a large amount of bacteria can be bred for a long time, and the materials are polluted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a high clean diaphragm pressure regulating relief valve.

In order to achieve the purpose, the utility model adopts the following technical scheme that the high-cleanness diaphragm pressure regulating safety valve comprises a diaphragm valve body, a diaphragm is arranged above the inner side of the diaphragm valve body, a valve cover is arranged above the diaphragm valve body, a valve rod is arranged in the valve cover in a penetrating manner, a valve core is connected with the lower part of the valve rod through threads, and the lower end of the valve core is contacted with the diaphragm;

a base plate is arranged above the valve rod, and a spring is arranged above the base plate.

As a further description of the above technical solution: the upper outer side of the valve cover is provided with an adjusting sleeve, and a limiting sleeve is fixedly connected to the upper portion of the adjusting sleeve.

As a further description of the above technical solution: the limiting sleeve and the adjusting sleeve are both rotationally connected with the valve rod.

As a further description of the above technical solution: and two sides of the valve cover are in threaded connection with a fastening cap.

As a further description of the above technical solution: and a screw is arranged below the tightening cap.

The utility model discloses following beneficial effect has:

1. compared with the prior art, the parts of the high-cleanness diaphragm pressure regulating safety valve, which are contacted with materials, are only a diaphragm valve body and a diaphragm, the diaphragm is a whole piece of rubber with a shape, the inside of the valve body is in circular arc transition, the smooth finish reaches 0.3 mu m, and the flowing materials are not left, have no wall hanging and are cleaner.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a front sectional view of the high-cleanness diaphragm pressure-regulating safety valve of the present invention;

fig. 2 is a side sectional view of the high-cleanness diaphragm pressure regulating safety valve of the present invention.

Illustration of the drawings:

1. a limiting sleeve; 2. an adjusting sleeve; 3. a spring; 4. a valve stem; 5. tightening the cap; 6. a backing plate; 7. a valve cover; 8. a screw; 9. a diaphragm; 10. a valve core; 11. a diaphragm valve body.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

Referring to fig. 1-2, the present invention provides an embodiment: a high-cleanness diaphragm pressure regulating safety valve comprises a diaphragm valve body 11, wherein two ends of the diaphragm valve body 11 are connected with a pipe body, the flow rate of liquid in the pipe body is realized through the diaphragm valve body, a diaphragm 9 is arranged above the inner side of the diaphragm valve body 11, the opening and closing work in the diaphragm valve body 11 is controlled by arranging the diaphragm 9 in the diaphragm valve body, when the pressure of a medium is larger than a set spring force, the diaphragm 9 is jacked open by the medium, a valve is opened, pressure is released, and other equipment is prevented from being damaged due to overhigh pressure, a valve cover 7 is arranged above the diaphragm valve body 11, the valve cover 7 and the lower diaphragm valve body 11 are in a welded connection mode, the leakage condition can be avoided when the high-cleanness diaphragm pressure regulating safety valve is used, a valve rod 4 penetrates through the interior of the valve cover 7, a valve core 10 is in threaded connection with the lower portion of the valve rod 4, the lower end of the valve core 10 is in contact with the diaphragm 9, the valve core 10 under the valve rod 4 can be driven to move up and down, and the sealing performance of the diaphragm 9 can be realized;

a base plate 6 is arranged above the valve rod 4, a spring 3 is arranged above the base plate 6, an adjusting sleeve 2 is arranged on the outer side above the valve cover 7, a limiting sleeve is fixedly connected above the adjusting sleeve 2, the limiting sleeve 1 and the adjusting sleeve 2 are both rotatably connected with the valve rod 4, the compression height of the inner spring 3 is adjusted by rotating the limiting sleeve 1 and the adjusting sleeve 2, the magnitude of the output force of the spring 3 is adjusted to control the magnitude of the sealing force of the diaphragm 9 and the diaphragm valve body 11, and the medium pressure in the diaphragm valve body 11 is equal to the set spring force;

valve gap 7's both sides threaded connection has and tightly caps 5, and the below of tightly caps 5 is provided with screw 8, and tight cap 5 can carry out limiting displacement to the adjusting collar 2 of top, thereby make the final adjusting position of adjusting collar 2 restrict, and can carry out accurate positioning work when next use, and the screw 8 threaded connection of both sides is in valve gap 7's inside, can carry out the fixed action to inside valve rod 4 through screwing up screw 8, guarantee the stability after valve rod 4 adjusts, and this relief valve only has diaphragm valve body 11 with the part of material contact, diaphragm 9 is a monoblock area shape rubber, and the inside circular arc that is of valve body passes through, the smooth finish reaches 0.3 mu m, the material that makes the flow through does not remain, no wall built-up, cleaner.

The working principle is as follows: the compression height of the internal spring 3 is adjusted by rotating the limiting sleeve 1 and the adjusting sleeve 2, the magnitude of the output force of the spring 3 is adjusted, the sealing force between the diaphragm 9 and the valve body 11 is controlled, the medium pressure in the diaphragm valve body 11 is equal to the set spring force, when the medium pressure is greater than the set spring force, the medium pushes the diaphragm 9 open, the valve is opened, the pressure is released, and the situation that other equipment is damaged due to overhigh pressure is avoided.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a high clean diaphragm pressure regulating relief valve, includes diaphragm valve body (11), its characterized in that: a diaphragm (9) is arranged above the inner side of the diaphragm valve body (11), a valve cover (7) is arranged above the diaphragm valve body (11), a valve rod (4) penetrates through the valve cover (7), a valve core (10) is connected to the lower part of the valve rod (4) in a threaded manner, and the lower end of the valve core (10) is in contact with the diaphragm (9);

a base plate (6) is arranged above the valve rod (4), and a spring (3) is arranged above the base plate (6).

2. The high-cleanness diaphragm pressure-regulating safety valve as claimed in claim 1, wherein an adjusting sleeve (2) is arranged on the upper outer side of the valve cover (7), and a limiting sleeve (1) is fixedly connected to the upper part of the adjusting sleeve (2).

3. A high-cleanness diaphragm pressure-regulating safety valve according to claim 2, wherein the limiting sleeve (1) and the adjusting sleeve (2) are rotatably connected with the valve rod (4).

4. The high-cleanness diaphragm pressure-regulating safety valve as claimed in claim 1, wherein both sides of the valve cover (7) are screwed with tightening caps (5).

5. The high-cleanness diaphragm pressure-regulating safety valve as claimed in claim 4, wherein a screw (8) is arranged below the tightening cap (5).