CN218914069U

CN218914069U - Full-open stainless steel safety valve

Info

Publication number: CN218914069U
Application number: CN202222815255.6U
Authority: CN
Inventors: 赵洋; 邢继增; 齐金和; 齐金广; 张宏胜
Original assignee: Zhonghang Oil Filtering Equipment Co ltd Guan County
Current assignee: Zhonghang Oil Filtering Equipment Co ltd Guan County
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-04-25
Anticipated expiration: 2032-10-25

Abstract

The utility model belongs to the technical field of safety valves and discloses a full-open type stainless steel safety valve, which comprises a safety valve body, wherein the bottom end of the safety valve body is connected with a liquid inlet pipe, the lower end of the side wall of the safety valve body is connected with a liquid outlet pipe, the bottom end of the liquid inlet pipe is welded with a first flange, the top end of the first flange is fixed with a second flange through a bolt, the bottom end of the second flange is welded with a first connecting pipe, the bottom end of the first connecting pipe is connected with a second connecting pipe, and the bottom end of the second connecting pipe is connected with a double-way pipe.

Description

Full-open stainless steel safety valve

Technical Field

The utility model belongs to the technical field of safety valves, and particularly relates to a full-open stainless steel safety valve.

Background

The safety valve is a special valve which is in a normally closed state under the action of external force, when the pressure of medium in equipment or a pipeline rises to exceed a specified value, the medium in the pipeline or the equipment is prevented from exceeding the specified value by discharging the medium to the outside of the system, the safety valve belongs to automatic valves, is mainly used on boilers, pressure vessels and pipelines, controls the pressure not to exceed the specified value, and plays an important role in protecting personal safety and equipment operation. The injection safety valve can be used only through a pressure test, wherein the full-open type safety valve is a safety valve with the opening height being more than or equal to 1/4 of the flow passage diameter, and the action characteristic of the safety valve belongs to a two-stage action type safety valve.

However, the existing full-open type safety valve has certain defects, the traditional full-open type safety valve is single in liquid inlet end connection mode, threaded connection or flange connection is difficult to select according to requirements, in addition, the liquid outlet end of the traditional full-open type safety valve can only be connected on a straight line when connected with a pipeline, the angle cannot be changed, and the flexibility is poor.

Disclosure of Invention

The utility model aims to provide a full-open type stainless steel safety valve, which solves the problems that the liquid inlet end of the traditional full-open type safety valve provided in the background art is single in connection mode, threaded connection or flange connection is difficult to select according to requirements, and in addition, the liquid outlet end of the traditional full-open type safety valve cannot be connected with a pipeline in a variable angle mode, so that the flexibility is poor.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a formula stainless steel relief valve opens entirely, includes the relief valve body, the bottom of relief valve body is connected with the feed liquor pipe, and the lateral wall lower extreme of relief valve body is connected with the drain pipe, the bottom welding of feed liquor pipe has first flange, the top of first flange is through the bolt fastening second flange, the bottom welding of second flange has first connecting pipe, the bottom of first connecting pipe is connected with the second connecting pipe, the bottom of second connecting pipe is connected with the bi-pass pipe, the internal thread has been seted up to the interior table wall of first connecting pipe, the external screw thread with internal thread looks adaptation has been seted up to the outer wall of second connecting pipe.

Preferably, a corrugated pipe is installed at the outer end of the liquid outlet pipe, and a fourth flange is fixed at one end, far away from the corrugated pipe, of the corrugated pipe.

Preferably, the two ends of the double-pass pipe are symmetrically welded with a third flange and a fifth flange, and the outer end of the third flange is provided with a blind plate through bolts.

Preferably, the third flange and the fifth flange are equal in specification.

Preferably, a sealing ring is arranged between the first flange and the second flange in a cushioning mode, and an anti-corrosion layer is arranged outside the sealing ring.

Preferably, a heat dissipation through hole is formed in the middle upper end of the outer wall of the safety valve body, and a dust screen is fixed in the heat dissipation through hole.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the fourth flange, the first connecting pipe and the internal threads are additionally arranged, when the flange connection is utilized, the first flange at the bottom end of the liquid inlet pipe can be directly utilized to carry out flange connection with the pipeline, when the threaded connection is needed, the second flange is firstly installed, then the internal threads arranged on the first connecting pipe are utilized to carry out threaded connection with the pipeline, and the two connection modes can be freely selected.

(2) According to the utility model, the corrugated pipe and the fourth flange are additionally arranged, and the corrugated pipe has a certain deformation limit, so that a worker can pull the corrugated pipe to change the angle to install the liquid outlet pipe and the pipeline of the safety valve, the safety valve is not limited to be connected on a straight line, the flexibility is improved, and the safety valve is not easy to eliminate.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a front view of the two-way tube of the present utility model;

fig. 3 is a cross-sectional view of a first connecting tube of the present utility model.

In the figure: 1. a safety valve body; 2. a liquid inlet pipe; 3. a first flange; 4. a second flange; 5. a first connection pipe; 6. a two-way pipe; 7. a second connection pipe; 8. a third flange; 9. a blind plate; 10. a liquid outlet pipe; 11. a bellows; 12. a fourth flange; 13. an external thread; 14. an internal thread; 15. and a fifth flange.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1-3, the present utility model provides the following technical solutions: the utility model provides a full open stainless steel relief valve, including relief valve body 1, the bottom of relief valve body 1 is connected with feed liquor pipe 2, and the lateral wall lower extreme of relief valve body 1 is connected with drain pipe 10, the bottom welding of feed liquor pipe 2 has first flange 3, the top of first flange 3 is through the bolt fastening second flange 4, the bottom welding of second flange 4 has first connecting pipe 5, the bottom of first connecting pipe 5 is connected with second connecting pipe 7, the bottom of second connecting pipe 7 is connected with bi-pass pipe 6, internal thread 14 has been seted up to the interior surface wall of first connecting pipe 5, external screw thread 13 with internal thread 14 looks adaptation has been seted up to the outer wall of second connecting pipe 7, concretely, when utilizing flange connection, can directly utilize first flange 3 and the pipeline of feed liquor pipe 2 bottom to carry out flange joint can, when utilizing threaded connection, install second flange 4 earlier, then utilize the internal thread 14 and the pipeline of seting up on the first connecting pipe 5 to carry out threaded connection can, two kinds of connected modes are selectable freely.

Further, the outer end portion of the liquid outlet pipe 10 is provided with the corrugated pipe 11, one end, far away from the corrugated pipe 11, of the corrugated pipe 11 is fixed with the fourth flange 12, specifically, the corrugated pipe 11 is a metal corrugated pipe, a worker can pull the corrugated pipe 11 to change an angle to install the liquid outlet pipe 10 and a pipeline of the safety valve by utilizing a certain deformation limit of the corrugated pipe 11, the liquid outlet pipe is not limited to be connected on a straight line, and the safety valve is more flexible and is not easy to eliminate.

Further, the two ends of the two-way pipe 6 are symmetrically welded with a third flange 8 and a fifth flange 15, the outer end of the third flange 8 is provided with a blind plate 9 through bolts, the specifications of the third flange 8 and the fifth flange 15 are equal, and specifically, when liquid needs to be fed from one end of the two-way pipe 6, the blind plate 9 can be utilized to seal the other end of the two-way pipe 6.

Further, the gasket is equipped with the sealing washer between first flange 3 and the second flange 4, and the outside of sealing washer is equipped with the anticorrosive coating, specifically, the sealing washer can increase the leakproofness between first flange 3 and the second flange 4, avoids taking place the weeping, and the anticorrosive coating can play anticorrosive effect, prolongs the life of sealing washer.

Further, the upper end has seted up the heat dissipation through-hole in the outer wall of relief valve body 1, and the inside of heat dissipation through-hole is fixed with the dust screen, and specifically, the heat dissipation through-hole of seting up is convenient for the heat to dispel, and wherein, the dust screen of addding can effectively avoid the entering of dust.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A full-open stainless steel safety valve is characterized in that: including relief valve body (1), the bottom of relief valve body (1) is connected with feed liquor pipe (2), and the lateral wall lower extreme of relief valve body (1) is connected with drain pipe (10), the bottom welding of feed liquor pipe (2) has first flange (3), the top of first flange (3) is through bolt fastening having second flange (4), the bottom welding of second flange (4) has first connecting pipe (5), the bottom of first connecting pipe (5) is connected with second connecting pipe (7), the bottom of second connecting pipe (7) is connected with bi-pass pipe (6), internal thread (14) have been seted up to the interior surface wall of first connecting pipe (5), external screw thread (13) with internal thread (14) looks adaptation have been seted up to the outer wall of second connecting pipe (7).

2. A fully-open stainless steel safety valve according to claim 1, wherein: the outer end part of the liquid outlet pipe (10) is provided with a corrugated pipe (11), and one end, far away from the corrugated pipe (11), of the corrugated pipe (11) is fixed with a fourth flange (12).

3. A fully-open stainless steel safety valve according to claim 2, wherein: a third flange (8) and a fifth flange (15) are symmetrically welded at two ends of the double-pass pipe (6), and a blind plate (9) is installed at the outer end of the third flange (8) through bolts.

4. A fully-open stainless steel safety valve according to claim 3, wherein: the third flange (8) and the fifth flange (15) are equal in specification.

5. The full-open stainless steel safety valve according to claim 4, wherein: a sealing ring is arranged between the first flange (3) and the second flange (4), and an anti-corrosion layer is arranged outside the sealing ring.

6. A fully-open stainless steel safety valve according to claim 5, wherein: the middle upper end of the outer wall of the safety valve body (1) is provided with a heat dissipation through hole, and a dust screen is fixed in the heat dissipation through hole.