CN209654681U - A kind of safety relief valve - Google Patents
A kind of safety relief valve Download PDFInfo
- Publication number
- CN209654681U CN209654681U CN201820307803.5U CN201820307803U CN209654681U CN 209654681 U CN209654681 U CN 209654681U CN 201820307803 U CN201820307803 U CN 201820307803U CN 209654681 U CN209654681 U CN 209654681U
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- China
- Prior art keywords
- valve
- convex ring
- valve body
- safety relief
- seal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of safety relief valve, includes valve body and valve deck, the valve inner be provided with the integrally formed valve body core of the valve body, be provided with valve rod at the inside axis of the valve body, the middle part of the valve rod is through there is flap；The junction of the valve body and valve deck is provided with diaphragm, and the diaphragm has diaphragm pressing plate to fix, and pilot valve, the downwardly convex formation convex ring in the side of the flap are provided at the top of the valve deck；The side of the valve body core raises upward to form lower convex ring；It is provided with upper seal on the inside of the convex ring, lower seal is provided on the inside of the lower convex ring, the upper seal is equipped with the lower convex ring, and the lower seal is equipped with the convex ring；The sealing effect of the safety relief valve is good.
Description
Technical field
The utility model relates to a kind of safety relief valves.
Background technique
Relief valve also known as safety valve (safety valve) are generally mounted to according to the operating pressure energy automatic open close of system
System safety is protected in the equipment or pipeline of closed system.When equipment or manifold pressure are more than relief valve setting pressure, i.e.,
Pressure release is automatically turned on, guarantees that equipment and pipeline internal medium pressure under setting pressure, protect equipment and pipeline, prevent to anticipate
Outside.Existing relief valve has generally comprised valve body and valve deck, be also arranged in the flap of valve inner, sealing structure, diaphragm and
Diaphragm pressing plate；Pilot valve, filter, pressure gauge, needle valve and ball valve etc. are also connected in the outside of relief valve；This kind of structure is let out
Pressure valve has a safety feature, but since the sealing structure of existing relief valve is still carried out using the structure of original single sealing ring
Sealing, sealing performance are bad.
Utility model content
In view of this, the utility model aim is to provide a kind of safety relief valve of good seal performance.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is:
A kind of safety relief valve includes valve body and valve deck, and the valve inner is provided with to be integrally formed with the valve body
Valve body core, be provided with valve rod at the inside axis of the valve body, the middle part of the valve rod is through there is flap；The valve body and valve
The junction of lid is provided with diaphragm, and the diaphragm has diaphragm pressing plate to fix, and pilot valve, the flap are provided at the top of the valve deck
The downwardly convex formation convex ring in side；The side of the valve body core raises upward to form lower convex ring；The inside of the convex ring
It is provided with upper seal, lower seal is provided on the inside of the lower convex ring, the upper seal is set with lower convex ring cooperation
It sets, the lower seal is equipped with the convex ring.
Preferably, the lower part of the upper seal is provided with section annular protrusion triangular in shape, the lower seal
Top setting be also equipped with section annular protrusion triangular in shape.
Preferably, the medial surface of the convex ring, in angularly disposed, the convex ring and lower convex ring are equipped with.
Preferably, the entrance of the valve body is communicated with filter by pipeline, the outlet of the filter is in leading
Valve, the outlet of the filter are also communicated with pressure gauge and needle valve, and the other end of the needle valve is connected in the lid
Portion.
Preferably, the lid is communicated with the first ball valve；The pilot valve is communicated with the second ball valve by pipeline, and described
The other end of two ball valves is connected to the outlet of the valve body.
The utility model has the technical effect that following aspect: since the side in flap is provided with convex ring, on
The medial surface of bulge loop is provided with lower convex ring in the side of valve body core, lower convex ring is equipped with convex ring, convex in angularly disposed
Ring and lower convex ring cooperatively form one layer of sealing；Due to being provided with upper seal on the inside of convex ring, set on the inside of lower convex ring
It is equipped with lower seal, upper seal and the lower convex ring of valve body core cooperatively form one layer of sealing, the convex ring of lower seal and flap
Cooperatively form another side seal, the multi-sealed sealing effect for making the safety relief valve is more preferable, due to upper seal lower part and
The top of lower seal is all provided with annular protrusion, further increases its sealing performance, prevents gas leakage, and security performance is higher.
Detailed description of the invention
Fig. 1 is the partial sectional view of the safety relief valve of the utility model；
Fig. 2 is the enlarged drawing of part A in Fig. 1；
Fig. 3 is the enlarged drawing of part B in Fig. 2.
Specific embodiment
Below in conjunction with attached drawing 1-3, specific embodiment of the present utility model is described in further detail, so that the utility model
Technical solution is more readily understood and grasps.
In the present embodiment, it is to be understood that term " centre ", "upper", "lower", " top ", " right side ", " left end ",
" top ", " back side ", " middle part ", etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, only
It is of the invention for ease of description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, the connection or fixed form between component if not otherwise specified in this embodiment, connection or solid
Determine mode can for fixed by bolt commonly used in the prior art or pin fix or pin shaft connection etc. modes, therefore, this
It is no longer described in detail in embodiment.
With reference to Fig. 1-3, a kind of safety relief valve includes valve body 1 and valve deck 8, and the valve body 1 and valve deck 8 pass through bolt 9
It is fixedly connected, the top fixation of the valve deck 8 is communicated with pilot valve 13, the model TK911 of the pilot valve 13.The valve body 1
Entrance is communicated with filter 10 by pipeline, the model QG of the filter 10, and the outlet of the filter 10 is in leading
Valve 13, the outlet of the filter 10 are also communicated with pressure gauge 12 and needle valve 11, the model Y-150W of the pressure gauge 12,
The model J21W-320P of the needle valve 11, the other end of the needle valve 11 are connected to inside the lid 13, the lid
Body 13 is communicated with the first ball valve 14, the model TK260 of first ball valve 14；The pilot valve 13 is communicated with second by pipeline
The model of second ball valve 15 is also TK260 described in ball valve 15, and the other end of second ball valve 15 is connected to going out for the valve body 1
Mouthful.The valve body 1 be internally provided with the integrally formed valve body core 16 of the valve body 1, be arranged at the inside axis of the valve body 1
There is valve rod 2, the middle part of the valve rod 2 is provided with sealing ring 4 between the flap 3 and valve body core 16 through there is flap 3.It is described
The junction of valve body 1 and valve deck 8 is provided with diaphragm 6, and the diaphragm 6 has diaphragm pressing plate 5 to fix, the top of the diaphragm pressing plate 5
It is additionally provided with the spring 7 being arranged around valve rod 2.The downwardly convex formation convex ring 31 in the side of the flap 3, the convex ring 31
Medial surface in angularly disposed；The side of the valve body core 16 raises upward to form lower convex ring 161, and the convex ring 31 is convex under
Ring 161 is equipped with, and forms one layer of sealing structure.The inside of the convex ring 31 is provided with upper seal 41, the lower convex ring
161 inside is provided with lower seal 42, and the lower part of the upper seal 41 is provided with section annular protrusion triangular in shape, institute
The top setting for stating lower seal 42 is also equipped with section annular protrusion triangular in shape, the upper seal 41 with it is described under it is convex
Ring 161 is equipped with, and forms one layer of sealing structure, and the lower seal 42 is equipped with the convex ring 31, is formed another
Side seal structure, the multi-sealed better tightness for making the relief valve, security performance are higher.
The utility model has the technical effect that following aspect: since the side in flap is provided with convex ring, on
The medial surface of bulge loop is provided with lower convex ring in the side of valve body core, lower convex ring is equipped with convex ring, convex in angularly disposed
Ring and lower convex ring cooperatively form one layer of sealing；Due to being provided with upper seal on the inside of convex ring, set on the inside of lower convex ring
It is equipped with lower seal, upper seal and the lower convex ring of valve body core cooperatively form one layer of sealing, the convex ring of lower seal and flap
Cooperatively form another side seal, the multi-sealed sealing effect for making the safety relief valve is more preferable, due to upper seal lower part and
The top of lower seal is all provided with annular protrusion, further increases its sealing performance, prevents gas leakage, and security performance is higher.
Certainly, the representative instance of above only the utility model, in addition to this, the utility model can also have other a variety of
Specific embodiment, all technical solutions formed using equivalent substitution or equivalent transformation all fall within the requires of the utility model protection
Within the scope of.
Claims (5)
1. a kind of safety relief valve, includes valve body and valve deck, the valve inner is provided with integrally formed with the valve body
Valve body core, is provided with valve rod at the inside axis of the valve body, and the middle part of the valve rod is through there is flap；The valve body and valve deck
Junction be provided with diaphragm, the diaphragm has diaphragm pressing plate to fix, and pilot valve is provided at the top of the valve deck, and feature exists
In: the downwardly convex formation convex ring in the side of the flap；The side of the valve body core raises upward to form lower convex ring；On described
Be provided with upper seal on the inside of bulge loop, be provided with lower seal on the inside of the lower convex ring, the upper seal and it is described under
Bulge loop is equipped with, and the lower seal is equipped with the convex ring.
2. safety relief valve according to claim 1, it is characterised in that: the lower part of the upper seal is provided with section and is in
The top setting of the annular protrusion of triangle, the lower seal is also equipped with section annular protrusion triangular in shape.
3. safety relief valve according to claim 1, it is characterised in that: the medial surface of the convex ring in angularly disposed,
The convex ring and lower convex ring are equipped with.
4. safety relief valve according to claim 1, it is characterised in that: the entrance of the valve body was communicated with by pipeline
Filter, for the outlet of the filter in pilot valve, the outlet of the filter is also communicated with pressure gauge and needle valve, the needle
The other end of type valve is connected to inside the valve deck.
5. safety relief valve according to claim 1, it is characterised in that: the valve deck is communicated with the first ball valve；It is described to lead
Valve is communicated with the second ball valve by pipeline, and the other end of second ball valve is connected to the outlet of the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820307803.5U CN209654681U (en) | 2018-03-06 | 2018-03-06 | A kind of safety relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820307803.5U CN209654681U (en) | 2018-03-06 | 2018-03-06 | A kind of safety relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209654681U true CN209654681U (en) | 2019-11-19 |
Family
ID=68503831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820307803.5U Active CN209654681U (en) | 2018-03-06 | 2018-03-06 | A kind of safety relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209654681U (en) |
-
2018
- 2018-03-06 CN CN201820307803.5U patent/CN209654681U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |