CN217153183U

CN217153183U - Pipeline relief valve that leakproofness is strong

Info

Publication number: CN217153183U
Application number: CN202220955814.0U
Authority: CN
Inventors: 崔学文
Original assignee: Liaoning Saint Wright Petrochemical Equipment Co ltd
Current assignee: Liaoning Saint Wright Petrochemical Equipment Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-08-09
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses a pipeline relief valve with strong sealing performance, which comprises a valve body and a fire pipeline, wherein two ends of the valve body are provided with relief valve flange plates, and the relief valve flange plates are provided with second sealing rings; the utility model discloses in, be connected with the pipeline flange dish of fire-fighting pipeline through the relief valve ring flange with the valve body, make the first sealing washer of pipeline ring flange closely laminate with the second sealing washer of relief valve ring flange, in this process, establish on fire-fighting pipeline through locating the shell cover, then the mobile location shell, make the location shell cup joint with relief valve ring flange and pipeline flange dish, and then fix a position the fixed frame of shell side welded screw post and valve body surface and peg graft mutually, make the bolt inslot that the bolt embedding location shell internal surface of relief valve ring flange surface was seted up, cooperation nut stretches into the inside partly threaded connection of set casing with the screw post, realize the installation of location shell and the reinforcement of flange junction, avoid influencing the sealed condition of effect of valve body because of the bolt is not hard up.

Description

Pipeline relief valve that leakproofness is strong

Technical Field

The utility model relates to a relief valve technical field especially relates to a pipeline relief valve that leakproofness is strong.

Background

When the pressure in the equipment or the pipeline exceeds the set pressure of the pressure relief valve, the pressure relief valve is automatically opened to relieve the pressure, so that the pressure of a medium in the equipment or the pipeline is ensured to be lower than the set pressure, the equipment and the pipeline are protected, and accidents are prevented.

The existing pipeline pressure relief valve is fixed with a fire pipeline by a flange in the using process, and the pressure relief valve automatically opens and has the vibration phenomenon in the pressure relief process.

Therefore, the pipeline pressure release valve with high sealing performance is provided, the pipeline pressure release valve with high sealing performance has the advantage of high sealing performance, and the problem in the background art is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a pipeline pressure relief valve with strong sealing performance.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a pipeline pressure release valve with strong sealing performance comprises a valve body and a fire fighting pipeline, wherein pressure release valve flanges are arranged at two ends of the valve body, a second sealing ring is arranged on each pressure release valve flange, a pipeline flange plate is arranged on one side of each pressure release valve flange, a first sealing ring is arranged on one surface, facing the pressure release valve flanges, of each pipeline flange plate, the first sealing ring is attached to the second sealing ring, the fire fighting pipeline is connected to one surface, away from the pressure release valve flanges, of each pipeline flange plate, bolts are fixedly arranged between the pipeline flange plates and the pressure release valve flanges, positioning shells are covered on the peripheries of the pipeline flange plates and the pressure release valve flanges, bolt grooves are formed in the inner surfaces of the positioning shells corresponding to the bolts, threaded columns are welded to the outer surfaces of the positioning shells, fixing frames are welded to the outer surfaces of the valve body, and the side surfaces of the fixing frames are connected with the threaded columns in an inserting mode through holes, and one end of the threaded column extending into the fixing frame is in threaded connection with a nut.

As a further description of the above technical solution: a plurality of annular grooves are formed in the edge of the surface of the first sealing ring, the diameters of the annular grooves are sequentially reduced from outside to inside, a plurality of convex rings are arranged on the edge of the surface of the second sealing ring corresponding to the annular grooves, and the convex rings are connected with the annular grooves respectively.

As a further description of the above technical solution: the pipeline flange plate and the pressure relief valve flange plate are provided with two groups, the two groups of pipeline flange plates and the two groups of pressure relief valve flange plates are symmetrical about the vertical central line of the valve body, and the peripheries of the pipeline flange plates and the pressure relief valve flange plates are both sleeved with positioning shells.

As a further description of the above technical solution: a plurality of bolt grooves are formed in the inner surface of the positioning shell in a surrounding mode, and a yielding hole is formed in the center of the positioning shell corresponding to the fire fighting pipeline.

As a further description of the above technical solution: the fixed frame is of a rectangular structure, and two side faces of the fixed frame are provided with through holes corresponding to the threaded columns.

As a further description of the above technical solution: the threaded column is provided with a plurality of, and a plurality of threaded columns encircle the setting with regard to the location shell.

The utility model discloses following beneficial effect has:

in the utility model, the first sealing ring of the pipeline flange plate is closely attached to the second sealing ring of the relief valve flange plate by connecting the relief valve flange plate of the valve body with the pipeline flange plate of the fire fighting pipeline, in the process, the positioning shell is sleeved on the fire fighting pipeline and then moved to cover the positioning shell with the relief valve flange plate and the pipeline flange plate, and the threaded column welded on the side surface of the positioning shell is inserted into the fixed frame on the surface of the valve body, so that the bolt on the surface of the relief valve flange plate is embedded into the bolt groove arranged on the inner surface of the positioning shell, the matching nut is in threaded connection with a part of the threaded column extending into the fixed shell, the installation of the positioning shell and the reinforcement of the flange joint are realized, the condition that the sealing effect of the valve body is influenced by the loosening of the bolt is avoided, meanwhile, a plurality of annular grooves are arranged at the edge of the first sealing ring, and a plurality of convex rings are arranged at the edge of the second sealing ring corresponding to the annular grooves, when the pipeline flange plate and the pressure relief valve flange plate are connected, the multiple convex rings can be embedded into the multiple annular grooves, so that the flange joint forms a multi-channel annular water blocking structure, and the sealing performance of the valve body is further improved.

Drawings

Fig. 1 is a schematic structural view of a pipe pressure relief valve with high sealing performance of the present invention;

fig. 2 is a schematic structural view of a positioning shell of the pipeline pressure relief valve with high sealing performance of the present invention;

fig. 3 is the utility model relates to a first sealing washer and second sealing washer connected state's of pipeline relief valve that leakproofness is strong profile.

Illustration of the drawings:

1. a valve body; 2. a fire conduit; 3. a pipeline flange; 4. a positioning shell; 5. a first seal ring; 6. a pressure relief valve flange; 7. a second seal ring; 8. a fixing frame; 9. a threaded post; 10. a nut; 11. a hole for abdication; 12. a bolt slot; 13. a convex ring; 14. an annular groove.

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.

According to the utility model discloses an embodiment provides a pipeline relief valve that leakproofness is strong.

Referring to the drawings and the detailed description, as shown in fig. 1-3, a pipeline pressure relief valve with high sealing performance according to an embodiment of the present invention includes a valve body 1 and a fire pipeline 2, a pressure relief valve flange 6 is disposed at both ends of the valve body 1, a second sealing ring 7 is disposed on the pressure relief valve flange 6, a pipeline flange 3 is disposed at one side of the pressure relief valve flange 6, a first sealing ring 5 is disposed at one side of the pipeline flange 3 facing the pressure relief valve flange 6, the first sealing ring 5 is attached to the second sealing ring 7, the fire pipeline 2 is connected to the side of the pipeline flange 3 away from the pressure relief valve flange 6, bolts are fastened between the pipeline flange 3 and the pressure relief valve flange 6, a positioning shell 4 covers the periphery of the pipeline flange 3 and the pressure relief valve flange 6, a bolt groove 12 is disposed on the inner surface of the positioning shell 4 corresponding to the bolt, the outer surface of the positioning shell 4 is welded with a threaded column 9, the outer surface of the valve body 1 is welded with a fixing frame 8, the side surface of the fixing frame 8 is in penetrating connection with the threaded column 9 through a through hole, one end of the threaded column 9, which extends into the fixing frame 8, is in threaded connection with a nut 10, the pressure relief valve flange 6 of the valve body 1 is connected with the pipeline flange 3 of the fire pipeline 2, so that a first sealing ring 5 of the pipeline flange 3 is tightly attached to a second sealing ring 7 of the pressure relief valve flange 6, in the process, the positioning shell 4 is sleeved on the fire pipeline 2, then the positioning shell 4 is moved, so that the positioning shell 4 is in covering connection with the pressure relief valve flange 6 and the pipeline flange 3, the threaded column 9 welded to the side surface of the positioning shell 4 is inserted into the fixing frame 8 on the surface of the valve body 1, a bolt on the surface of the pressure relief valve flange 6 is embedded into a bolt groove 12 formed in the inner surface of the positioning shell 4, and the nut 10 is in threaded connection with a part of the threaded column 9, which extends into the fixing shell, the installation of the positioning shell 4 and the reinforcement of the flange joint are realized, and the condition that the sealing effect of the valve body 1 is influenced due to the loosening of the bolts is avoided;

in one embodiment, a plurality of annular grooves 14 are formed in the edge of the surface of the first sealing ring 5, the diameters of the plurality of annular grooves 14 are sequentially reduced from outside to inside, a plurality of convex rings 13 are arranged corresponding to the annular grooves 14 in the edge of the surface of the second sealing ring 7, the plurality of convex rings 13 are respectively connected with the plurality of annular grooves 14, the plurality of annular grooves 14 are formed in the edge of the first sealing ring 5, the plurality of convex rings 13 are arranged corresponding to the annular grooves 14 in the edge of the second sealing ring 7, and when the pipeline flange 3 is connected with the pressure release valve flange 6, the plurality of convex rings 13 can be embedded into the plurality of annular grooves 14, so that the flange connection part forms a multi-channel annular water blocking structure, and the sealing performance of the valve body 1 is further improved.

In one embodiment, pipeline flange 3 and relief valve ring flange 6 are provided with two sets ofly, and two sets of pipeline flange 3 and relief valve ring flange 6 are symmetrical about the vertical central line of valve body 1 to the periphery of pipeline flange 3 and relief valve ring flange 6 all overlaps and is equipped with location shell 4, is convenient for increase the fastness that valve body 1 and fire control pipeline 2 are connected through location shell 4, avoids the condition that the flange of valve body 1 and fire control pipeline 2 junction takes place to leak.

In one embodiment, a plurality of bolt grooves 12 are circumferentially formed in the inner surface of the positioning shell 4, and a yielding hole 11 is formed in the center of the positioning shell 4 corresponding to the fire fighting pipeline 2, so that the bolt grooves 12 can be used for yielding bolts at the flange connection part, and the connection fitting degree of the positioning shell 4 and the pressure relief valve flange plate 6 is increased.

In one embodiment, the fixing frame 8 has a rectangular structure, and two side surfaces of the fixing frame 8 are provided with through holes corresponding to the threaded posts 9, so that one ends of the threaded posts 9 can be conveniently locked through the fixing frame 8 and the nuts 10.

In one embodiment, the threaded studs 9 are provided in plurality and the plurality of threaded studs 9 are circumferentially arranged with respect to the positioning shell 4, by means of the plurality of threaded studs 9, a secure mounting of the positioning shell 4 is facilitated.

The working principle is as follows:

when the positioning shell is used, the pressure relief valve flange 6 of the valve body 1 is connected with the pipeline flange 3 of the fire-fighting pipeline 2, so that the first sealing ring 5 of the pipeline flange 3 is tightly attached to the second sealing ring 7 of the pressure relief valve flange 6, in the process, the positioning shell 4 is sleeved on the fire-fighting pipeline 2, then the positioning shell 4 is moved, so that the positioning shell 4 is connected with the pressure relief valve flange 6 and the pipeline flange 3 in a covering manner, the threaded column 9 welded on the side surface of the positioning shell 4 is inserted into the fixing frame 8 on the surface of the valve body 1, the bolt on the surface of the pressure relief valve flange 6 is embedded into the bolt groove 12 formed in the inner surface of the positioning shell 4, the nut 10 and the threaded column 9 are matched to extend into a part of the inside of the fixing shell for realizing the installation of the positioning shell 4 and the reinforcement of the flange joint, the condition that the sealing effect of the valve body 1 is not influenced by the loosening of the bolt is avoided, and meanwhile, the annular grooves 14 are formed in the edge of the first sealing ring 5, and correspond annular groove 14 in the edge of second sealing washer 7 and set up a plurality of bulge loops 13, when pipeline flange dish 3 and relief valve ring flange 6 connect, a plurality of bulge loops 13 can imbed and set up in a plurality of annular groove 14 for flange joint forms multichannel annular structure that blocks water, thereby further promotes valve body 1's sealing performance.

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 pipeline relief valve that leakproofness is strong, includes valve body (1) and fire control pipeline (2), its characterized in that: the fire-fighting pipeline is characterized in that decompression valve flange plates (6) are arranged at two ends of the valve body (1), second sealing rings (7) are arranged on the decompression valve flange plates (6), a pipeline flange plate (3) is arranged on one side of each decompression valve flange plate (6), a first sealing ring (5) is arranged on one side, facing the decompression valve flange plate (6), of each pipeline flange plate (3), the first sealing ring (5) is attached to the second sealing ring (7), a fire-fighting pipeline (2) is connected to one side, away from the decompression valve flange plates (6), of each pipeline flange plate (3), bolts are fixedly installed between the pipeline flange plates (3) and the decompression valve flange plates (6), positioning shells (4) are covered on the peripheries of the pipeline flange plates (3) and the decompression valve flange plates (6), bolt grooves (12) are formed in the inner surfaces of the positioning shells (4) corresponding to the bolts, threaded columns (9) are welded on the outer surfaces of the positioning shells (4), the valve body (1) skin weld has fixed frame (8), and the side of fixed frame (8) alternates with screw thread post (9) through the through-hole and be connected, the one end threaded connection that screw thread post (9) stretched into fixed frame (8) has nut (10).

2. The pipe pressure relief valve with high sealing performance as claimed in claim 1, wherein: a plurality of annular grooves (14) have been seted up to the edge on first sealing washer (5) surface, and the diameter outside-in of a plurality of annular grooves (14) reduces in proper order, the edge on second sealing washer (7) surface corresponds annular groove (14) and is provided with a plurality of bulge loops (13), and a plurality of bulge loops (13) are connected with a plurality of annular grooves (14) respectively.

3. The pipe pressure relief valve with high sealing performance as claimed in claim 1, wherein: the pipeline flange plate (3) and the pressure relief valve flange plate (6) are provided with two sets, the two sets of pipeline flange plates (3) and the pressure relief valve flange plate (6) are symmetrical about the vertical central line of the valve body (1), and the peripheries of the pipeline flange plates (3) and the pressure relief valve flange plate (6) are all sleeved with positioning shells (4).

4. The pipe pressure relief valve with high sealing performance as claimed in claim 1, wherein: a plurality of bolt grooves (12) are arranged on the inner surface of the positioning shell (4) in a surrounding mode, and a yielding hole (11) is formed in the center of the positioning shell (4) corresponding to the fire pipeline (2).

5. The pipe pressure relief valve with high sealing performance as claimed in claim 1, wherein: the fixing frame (8) is of a rectangular structure, and two side faces of the fixing frame (8) are provided with through holes corresponding to the threaded columns (9).

6. The pipe pressure relief valve with high sealing performance as claimed in claim 1, wherein: the threaded columns (9) are arranged in a plurality, and the threaded columns (9) are arranged in a surrounding mode relative to the positioning shell (4).