CN208845804U - A kind of emergency relief valve - Google Patents
A kind of emergency relief valve Download PDFInfo
- Publication number
- CN208845804U CN208845804U CN201821547879.1U CN201821547879U CN208845804U CN 208845804 U CN208845804 U CN 208845804U CN 201821547879 U CN201821547879 U CN 201821547879U CN 208845804 U CN208845804 U CN 208845804U
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- valve
- seal
- valve body
- emergency relief
- seal receptacle
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Abstract
The utility model discloses a kind of emergency relief valves, including connecting flange, valve body, valve rod, valve pocket, seal receptacle, seal O-ring, sealing valve disc and rain cover.The utility model emergency relief valve connecting flange is connected with the flange on tank deck, the inner wall of connecting flange is equipped with valve body, the top of valve body is equipped with seal receptacle, seal O-ring is equipped in seal receptacle, the good seal performance of seal O-ring, under breather valve normal operation, emergency relief valve keeps sealing state substantially, and storage tank is in normal pressure.Caused by breather valve normal work can not meet because of accidental cause when storage tank sharply superpressure, the sealing valve disc of emergency relief valve opens automatically, carries out emergency decompression, so that pressure inside the tank is kept normal, to protect the safety of storage tank.The cracking pressure of emergency decompression valve depends on the weight of valve disc itself.When pressure inside the tank, which reaches user, gives setting value, the sealing valve disc of emergency relief valve can just open automatically, and storage tank is protected not to be damaged.
Description
Technical field
The utility model relates to a kind of valve, specially a kind of emergency relief valve belongs to bleeder valve applied technical field.
Background technique
" fixed tank of first, Class B liquid, using fire arrester and breather valve, emergency relief valve ".It can be seen that emergency relief valve
It is the indispensable safety devices of storage tank.Emergency relief valve can not only maintain cartridge gas pressure to balance, it is ensured that storage tank is exempted from superpressure
It goes to pot, and can be reduced the volatilization and loss of medium in tank, meet the ventilation requirement of the big expiration of storage tank.Emergency relief valve (also known as
Single breathing valve) it is quick pressure relief device, technical performance, main parts size material are identical as breathing manhole.Emergency relief valve is peace
Safe emergency ventilation device in the equipment and storage tank such as petrochemical industry, usually with the breather valve installed on tank deck is mating makes
With, maintain the normal pressure in tank, caused by being both avoided that because of accidental cause in tank sharply superpressure when, damage storage tank and the thing that occurs
Therefore；Have many advantages, such as again level pressure discharge, open and close it is flexible, compact-sized, safe and reliable.
Because the sealing of old-fashioned emergency relief valve is between valve disc and valve seat using very stiff and demanding, thus sealing be not achieved it is logical
Therefore requirement in wind atmosphere and low pressure storage tank proposes a kind of emergency relief valve regarding to the issue above.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of emergency relief valve, improved tight
Anxious relief valve sealing uses O-ring soft seal, and good seal performance can release stress automatically according to the setting of user, guarantee storage
Tank will not be damaged.
The utility model is achieved through the following technical solutions above-mentioned purpose, a kind of emergency relief valve, including connecting flange,
The center of the connecting flange is equipped with valve body, and the valve body is cylindrical structure, and the outside of the valve body is equipped with valve pocket, institute
It states there are three valve pocket sets, and three valve pockets are circumferentially uniformly distributed about the valve body, the center of the valve pocket is equipped with valve
Bar, the top of the valve body are equipped with seal receptacle, and the seal receptacle is cirque structure, and the section of the seal receptacle is spill
Structure, is equipped with seal O-ring in the seal receptacle, and the seal O-ring is in cirque structure, and the top of the seal O-ring
End is flushed with the top of the seal receptacle, and the top of the valve body is equipped with sealing valve disc, and the sealing valve disc is cylindrical structure,
And the central point of the sealing valve disc, on the center line of the valve body, the top of the valve pocket is equipped with rain cover, and described anti-
Canopy is hemispherical dome structure.
Preferably, in order to realize that the flange for connecting the connecting flange and tank deck, the connecting flange are cirque structure,
And the bottom end of the connecting flange is connected with the flange of tank deck.
Preferably, in order to guarantee the leakproofness of emergency relief valve, the top phase of the bottom end of the seal receptacle and the valve body
Connection, and the cross-sectional length of the seal receptacle is greater than the cross-sectional length of the valve body.
Preferably, in order to connect the valve rod and the sealing valve disc, the valve rod is cylindrical structure, and the valve rod
It is rotatablely connected with the sealing valve disc by screw.
Preferably, in order to guarantee the leakproofness of emergency relief valve, the valve body, the connecting flange, the seal receptacle and
The sealing valve disc constitutes sealing space.
Preferably, in order to facilitate the unlatching of emergency relief valve, the outside wall parallel of the valve rod and the valve body, and the valve
Three, bar circumferentially uniformly distributed about the valve body.
The beneficial effects of the utility model are: emergency relief valve connecting flange is connected with the flange on tank deck, connection method
Blue inner wall is equipped with valve body, and the top of valve body is equipped with seal receptacle, is equipped with seal O-ring, the sealing of seal O-ring in seal receptacle
Performance is good, and under breather valve normal operation, emergency relief valve keeps sealing state substantially, and storage tank is in normal pressure.When
Breather valve normal work can not meet because of accidental cause caused by storage tank sharply superpressure when, the sealing valve disc of emergency relief valve pushes up automatically
It opens, carries out emergency decompression, so that pressure inside the tank is kept normal, to protect the safety of storage tank.The cracking pressure of emergency decompression valve depends on
In the weight of valve disc itself.When pressure inside the tank, which reaches user, gives setting value, the sealing valve disc of emergency relief valve just can be automatic
It opens, storage tank is protected not to be damaged.
Detailed description of the invention
Fig. 1 is the utility model global sections structural schematic diagram.
In figure: 1, rain cover, 2, sealing valve disc, 3, seal O-ring, 4, seal receptacle, 5, valve pocket, 6, valve rod, 7, valve body, 8,
Connecting flange.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Refering to Figure 1, a kind of emergency relief valve, including connecting flange 8, the center peace of the connecting flange 8
Equipped with valve body 7, the valve body 7 is cylindrical structure, and the outside of the valve body 7 is equipped with valve pocket 5, there are three the valve pocket 5 is set, and three
A valve pocket 5 is circumferentially uniformly distributed about the valve body 7, and the center of the valve pocket 5 is equipped with valve rod 6, the top of the valve body 7
End is equipped with seal receptacle 4, and the seal receptacle 4 is cirque structure, and the section of the seal receptacle 4 is concave structure, described close
Seal seat 4 in be equipped with seal O-ring 3, the seal O-ring 3 be in cirque structure, and the top of the seal O-ring 3 with it is described
The top of seal receptacle 4 flushes, and the top of the valve body 7 is equipped with sealing valve disc 2, and the sealing valve disc 2 is cylindrical structure, and institute
The central point of sealing valve disc 2 is stated on the center line of the valve body 7, the top of the valve pocket 5 is equipped with rain cover 1, and described anti-
Canopy 1 is hemispherical dome structure.
As a kind of technical optimization scheme of the utility model, the connecting flange 8 is cirque structure, and the connection
The bottom end of flange 8 is connected with the flange of tank deck.
As a kind of technical optimization scheme of the utility model, the top phase of the bottom end of the seal receptacle 4 and the valve body 7
Connection, and the cross-sectional length of the seal receptacle 4 is greater than the cross-sectional length of the valve body 7.
As a kind of technical optimization scheme of the utility model, the valve rod 6 is cylindrical structure, and the valve rod 6 with
The sealing valve disc 2 is rotatablely connected by screw.
As a kind of technical optimization scheme of the utility model, the valve body 7, the connecting flange 8, the seal receptacle 4
Sealing space is constituted with the sealing valve disc 2.
As a kind of technical optimization scheme of the utility model, the outside wall parallel of the valve rod 6 and the valve body 7, and institute
Valve rod 6 is stated to be centrosymmetric distribution about the valve body 7.
When the utility model is used, firstly, the cracking pressure of emergency decompression valve depends on the weight of valve disc itself, user
Setting value can be given, emergency relief valve connecting flange 8 is connected with the flange on tank deck, and the inner wall of connecting flange 8 is equipped with
Valve body 7, the top of valve body 7 are equipped with seal receptacle 4, are equipped with seal O-ring 7 in seal receptacle 4, the good seal performance of seal O-ring 7,
Under breather valve normal operation, emergency relief valve keeps sealing state substantially, and storage tank is in normal pressure.When breather valve just
Normal on-the-job satisfaction not because caused by accidental cause storage tank sharply superpressure when, that is, exceed setting value, the sealing valve disc 2 of emergency relief valve
Automatically it opens, carries out emergency decompression, so that pressure inside the tank is kept normal, to protect the safety of storage tank.The top of valve pocket 5 is equipped with anti-
Canopy 1 can protect bleeder valve and is not damaged by the change of environment.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of emergency relief valve, including connecting flange (8), it is characterised in that: install the center of the connecting flange (8)
Have valve body (7), the valve body (7) is cylindrical structure, and the outside of the valve body (7) is equipped with valve pocket (5), and the valve pocket (5) is equipped with
Three, and three valve pockets (5) are circumferentially uniformly distributed about the valve body (7), the center of the valve pocket (5) is equipped with valve rod
(6), the top of the valve body (7) is equipped with seal receptacle (4), and the seal receptacle (4) is cirque structure, and the seal receptacle
(4) section is concave structure, is equipped with seal O-ring (3) in the seal receptacle (4), and the seal O-ring (3) is in circular ring shape
Structure, and the top of the seal O-ring (3) is flushed with the top of the seal receptacle (4), the top of the valve body (7) is equipped with
It seals valve disc (2), the sealing valve disc (2) is cylindrical structure, and the central point of sealing valve disc (2) is in the valve body
(7) on center line, the top of the valve pocket (5) is equipped with rain cover (1), and the rain cover (1) is hemispherical dome structure.
2. a kind of emergency relief valve according to claim 1, it is characterised in that: the connecting flange (8) is circular ring shape knot
Structure, and the bottom end of the connecting flange (8) is connected with the flange of tank deck.
3. a kind of emergency relief valve according to claim 1, it is characterised in that: the bottom end of the seal receptacle (4) with it is described
The top of valve body (7) is connected, and the cross-sectional length of the seal receptacle (4) is greater than the cross-sectional length of the valve body (7).
4. a kind of emergency relief valve according to claim 1, it is characterised in that: the valve rod (6) is cylindrical structure, and
The valve rod (6) and the sealing valve disc (2) are rotatablely connected by screw.
5. a kind of emergency relief valve according to claim 1, it is characterised in that: the valve body (7), the connecting flange
(8), the seal receptacle (4) and the sealing valve disc (2) constitute sealing space.
6. a kind of emergency relief valve according to claim 1, it is characterised in that: the valve rod (6) and the valve body (7)
Outside wall parallel, and the valve rod (6) is circumferentially evenly distributed with for three about the valve body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821547879.1U CN208845804U (en) | 2018-09-21 | 2018-09-21 | A kind of emergency relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821547879.1U CN208845804U (en) | 2018-09-21 | 2018-09-21 | A kind of emergency relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208845804U true CN208845804U (en) | 2019-05-10 |
Family
ID=66373695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821547879.1U Active CN208845804U (en) | 2018-09-21 | 2018-09-21 | A kind of emergency relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208845804U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216477A (en) * | 2020-09-21 | 2021-01-12 | 国网浙江兰溪市供电有限公司 | Main transformer respirator with rain-proof cover |
| CN114076676A (en) * | 2021-11-02 | 2022-02-22 | 南京市锅炉压力容器检验研究院 | Integrated calibration platform and method for liquid tank breather valve and emergency relief device |
| CN115059788A (en) * | 2022-08-18 | 2022-09-16 | 吴江天吴特种安全阀有限公司 | High emergency relief valve of security |
-
2018
- 2018-09-21 CN CN201821547879.1U patent/CN208845804U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216477A (en) * | 2020-09-21 | 2021-01-12 | 国网浙江兰溪市供电有限公司 | Main transformer respirator with rain-proof cover |
| CN112216477B (en) * | 2020-09-21 | 2021-11-30 | 国网浙江兰溪市供电有限公司 | Main transformer respirator with rain-proof cover |
| CN114076676A (en) * | 2021-11-02 | 2022-02-22 | 南京市锅炉压力容器检验研究院 | Integrated calibration platform and method for liquid tank breather valve and emergency relief device |
| CN114076676B (en) * | 2021-11-02 | 2024-01-05 | 南京市锅炉压力容器检验研究院 | Integrated verification platform and method for breather valve and emergency release device of liquid tank |
| CN115059788A (en) * | 2022-08-18 | 2022-09-16 | 吴江天吴特种安全阀有限公司 | High emergency relief valve of security |
| CN115059788B (en) * | 2022-08-18 | 2023-09-29 | 吴江天吴特种安全阀有限公司 | Emergency relief valve with high safety |
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