CN209370541U - A kind of purging pressure relief device - Google Patents
A kind of purging pressure relief device Download PDFInfo
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- CN209370541U CN209370541U CN201822186482.0U CN201822186482U CN209370541U CN 209370541 U CN209370541 U CN 209370541U CN 201822186482 U CN201822186482 U CN 201822186482U CN 209370541 U CN209370541 U CN 209370541U
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- valve
- purging
- blow down
- pressure relief
- relief device
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Abstract
The utility model discloses a kind of purging pressure relief devices, belong to chemical engineering piping systems technical field.It include: several blow down valves and a purging main valve, side wall of the wear-resisting valve body close to primary sealing area one end is uniformly provided with several purging flange entrances, a blow down valve is installed in each purging flange entrance, and it is interconnected between several blow down valves, wherein a purging main valve is also communicated between two adjacent blow down valves, in addition, the side wall of wear-resisting valve body is additionally provided with relief valve, relief valve is connected to wherein two blow down valves.A kind of purging pressure relief device provided by the utility model individually controls the opening and closing of each purging entrance with valve, achievable different blowing method and effect, pressure relief device can solve the problems, such as to build the pressure, and reduce the cracking pressure of valve, the excessive design for avoiding valve body, reduces design and use cost.
Description
Technical field
The utility model relates to chemical engineering piping systems technical fields, are specifically related to a kind of purging pressure relief device.
Background technique
Existing powder delivery system (such as coal chemical industry, polysilicon industry) is to guarantee long-term operation, all using resistance to
Valve grinding, and be two anti-friction valve series connection or a two way seal anti-friction valve.Under normal usage, the cavity meeting of valve
Accumulation powder material leads to valve switch bite.Two concatenated anti-friction valves or two way seal anti-friction valve (such as shell work simultaneously
The fine coal lock hopper valve of skill or grey lock hopper valve) be just to carry out switch motion after pressurising, pressure release make pressure balance, when two it is concatenated
Pipeline between anti-friction valve or the pressure in the valve chamber of two way seal valve are not laid down or wear-resisting in time after valve closing
Valve leaks in occurring, and will lead to build the pressure in intermediate duct (especially floating ball valve) or valve chamber, causes valve that can not open.Needle
To the above problem, common practice is that valve according to total pressure difference is designed type selecting at present, due to being designed with total pressure difference, valve
The valve rod of door needs overstriking, and executing agency needs to carry out type selecting according to large torque, and design cost and on-site maintenance cost is caused to increase
Add very much.Existing blow device is also to be purged from side, and is centering purging, and scavenging pipeline is directly welded at valve body
On, purging effect is bad and maintenance is inconvenient.
Utility model content
For the above-mentioned problems in the prior art, it is desirable to provide a kind of purging pressure relief device is connected by flange form
Blow device valve chamber or pipeline are purged, individually controlled with valve it is each purging entrance opening and closing, achievable difference
Blowing method and effect, pressure relief device can solve the problems, such as to build the pressure, reduce the cracking pressure of valve, avoid the excessive of valve body
Design, reduces design and use cost.
Specific technical solution is as follows:
A kind of purging pressure relief device, comprising: several blow down valves and a purging main valve, wear-resisting valve body is close to primary sealing area one
The side wall at end is uniformly provided with several purging flange entrances, is equipped with a blow down valve in each purging flange entrance, and several blows
It sweeps and is interconnected between valve, wherein a purging main valve is also communicated between two adjacent blow down valves, in addition, the side wall of wear-resisting valve body
It is additionally provided with relief valve, relief valve is connected to wherein two blow down valves.
It in a kind of above-mentioned purging pressure relief device, also has the feature that, the section of wear-resisting valve body is circle, each
The angle α for purging the Way in of flange entrance and the tangential direction of wear-resisting valve body is 45 °.
It in a kind of above-mentioned purging pressure relief device, also has the feature that, blow down valve and purging flange entrance are many
In three.
In a kind of above-mentioned purging pressure relief device, also have the feature that, between adjacent two blow down valve by bend pipe and
Connecting flange is connected with each other.
In a kind of above-mentioned purging pressure relief device, also have the feature that, the both ends of each section of bend pipe are provided with one
Connecting flange.
In a kind of above-mentioned purging pressure relief device, also have the feature that, be provided with purging main valve two blow down valves it
Between be additionally provided with bypass valve.
It in a kind of above-mentioned purging pressure relief device, also has the feature that, the low pressure in relief valve and wear-resisting valve body
Side connection.
It in a kind of above-mentioned purging pressure relief device, also has the feature that, several blow down valves, purging main valve, bypass valve
And relief valve is to manually control.
It in a kind of above-mentioned purging pressure relief device, also has the feature that, several blow down valves, purging main valve, bypass valve
And relief valve is to automatically control, several blow down valves, purging main valve, bypass valve and relief valve are electrically connected with the controller.
The good effect of above-mentioned technical proposal is:
A kind of purging pressure relief device provided by the utility model, 1) purging flange entrance is non-centering type, can be formed with
Conducive to the flow field of stacking material in purging anti-friction valve valve chamber, avoidable centering purges to form purging dead angle；2) multiple blow valve ports
Individually controllable setting is conducive to the continuous adjustment of Purge methods；3) pressure relief device can be eliminated in anti-friction valve valve chamber or pipeline is suppressed
Pressure makes the reduction of valve design cost；4) purging pressure relief device is assembled using multisection type flange, convenient for live main valve and scavenging pipeline
On-line maintenance.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the embodiment of purging pressure relief device of the utility model；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is a kind of top view of the embodiment of purging pressure relief device of the utility model.
In attached drawing: 1, purging flange entrance；2, blow down valve a；3, blow down valve b；4, bypass valve；5, blow down valve c；6, purging is total
Valve；7, relief valve；8, bend pipe；9, connecting flange.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, with
Lower embodiment combination attached drawing 1 and attached drawing 3 are specifically addressed a kind of purging pressure relief device provided by the utility model.
Fig. 1 is a kind of structural schematic diagram of the embodiment of purging pressure relief device of the utility model；Fig. 2 is in Fig. 1 at A
Partial enlarged view；Fig. 3 is a kind of top view of the embodiment of purging pressure relief device of the utility model, in the present embodiment, should
Purging pressure relief device mainly includes purging flange entrance 1, blow down valve a2, blow down valve b3, bypass valve 4, blow down valve c5, purging main valve
6, relief valve 7, bend pipe 8, connecting flange 9.
A kind of purging pressure relief device includes three blow down valves and a purging main valve 6, three blow down valves be followed successively by blow down valve a2,
Blow down valve b3 and blow down valve c5, side wall of the wear-resisting valve body close to primary sealing area one end are uniformly provided with three purging flanges and enter
Mouthful 1, a blow down valve is installed in each purging flange entrance 1, and be interconnected between three blow down valves, wherein blow down valve b3 with
A purging main valve 6 is also communicated between blow down valve c5, in addition, the side wall of wear-resisting valve body is additionally provided with relief valve 7, relief valve 7
It is connected to respectively with blow down valve a2, blow down valve b3.
In a preferred embodiment, as depicted in figs. 1 and 2, the section of wear-resisting valve body is circle, each purging
The angle α of the tangential direction of the Way in of flange entrance 1 and wear-resisting valve body is 45 °, so arranges and can avoid centering purging
Purging dead angle is formed, and the purging at least three tunnels makes to form the flow field being vortexed in anti-friction valve valve chamber, can more effectively take away valve chamber
The material of interior accumulation.Every place's purging flange entrance 1 is mounted on a blow down valve to be made for opening or cutting off source purge gas
Quantity, time and the direction of purging are controllable.
In a preferred embodiment, excellent as shown in Figure 1, blow down valve and purging flange entrance 1 are no less than three
Be selected as three, the switch of each blow down valve can autonomous control, be conducive to the continuous adjustment of Purge methods.
In a preferred embodiment, as shown in Figure 1, passing through bend pipe 8 and connecting flange 9 between adjacent two blow down valve
It is connected with each other, the dismounting maintenance such as pipeline and all kinds of valves for purging pressure relief device is all more convenient.
In a preferred embodiment, as shown in Figure 1, the both ends of each section of bend pipe 8 are provided with a connecting flange
9, convenient for the connection and disassembly between each valve body, be conducive to on-site maintenance.
In a preferred embodiment, it is also set up as shown in Figure 1, being provided between two blow down valves of purging main valve 6
There is bypass valve 4, wherein the setting of bypass valve 4 is between purging main valve 6 and blow down valve b3, convenient for bypass valve to blow down valve b3 and purging
The centralized control of valve a2.
In a preferred embodiment, as shown in figures 1 and 3, the low-pressure side in relief valve 7 and wear-resisting valve body connects
It is logical, it prevents from building the pressure in anti-friction valve valve chamber, makes the reduction of valve design cost, when needing pressure release, close purging main valve 6 and bypass valve
4, at least one valve opened in relief valve 7 and blow down valve a2 or blow down valve b3 completes the pressure release in wear-resisting valve body.
In a preferred embodiment, as shown in Figure 1, blow down valve a2, blow down valve b3, blow down valve c5, purging main valve
6, bypass valve 4 and relief valve 7 are to manually control, and need the opening and closing to each valve body to carry out according to the actual conditions of purging
Adjustment.
In a preferred embodiment, as shown in Figure 1, blow down valve a2, blow down valve b3, blow down valve c5, purging main valve
6, bypass valve 4 and relief valve 7 are to automatically control, blow down valve a2, blow down valve b3, blow down valve c5, purging main valve 6, bypass valve 4
And relief valve 7 is electrically connected with the controller, and the opening and closing of each valve body is uniformly controlled by a controller, to simplify to each valve
The control of body operates.
The working principle of the purging pressure relief device:
When anti-friction valve operating condition is good, purge cycles are very long and when only needing to purge manually, can be by least three purging
Flange entrance is sealed with blind plate, and artificial connection purging pressure relief device is waited when maintenance again to carry out concentration purging.
When anti-friction valve, which is periodically purged with, to be required, but only need to be manually operated when can meet purging and requiring, it can be according to
It is required that opening blow down valve a2, blow down valve b3, blow down valve c5, bypass valve 4 and purging main valve 6 manually completes purging program.
When anti-friction valve has purging to require, and need to reinforce certain all the way the purging tolerance of blow valve port when, open purging main valve 6
It (when using blow down valve a2 or blow down valve b3, needs to open branch with a valve in blow down valve a2, blow down valve b3, blow down valve c5
Valve 4) complete purging program.
It when occurring the motionless foreign matter of purging in anti-friction valve valve chamber, dismantles and purges pressure relief device, entered by purging flange
Foreign matter is cleared out of valve chamber by mouth.
When building the pressure in anti-friction valve valve chamber causes valve that can not open, purging main valve 6 and bypass valve 4 are closed, opens pressure release
At least one valve in valve 7 and blow down valve a2 or blow down valve b3 completes the pressure release in valve chamber.
Hereinafter, being illustrated with a kind of specific embodiment, it should be pointed out that described in following implementation it
Structure, technique, selection are only to illustrate the feasibility of embodiment, the intention of scope of protection of the utility model that there is no restriction.
The purging pressure relief device, including blow down valve a2, blow down valve b3, blow down valve c5, three blow down valves are separately mounted to resistance to
In three purging flange entrances 1 of valve grinding side wall, the tangential direction of the Way in and wear-resisting valve body of purging flange entrance
Angle α is 45 °, and bypass valve 4 is wherein also communicated between blow down valve b3 and blow down valve c5 and purges main valve 6, in wear-resisting valve body
Low-pressure side be also communicated with relief valve 7, relief valve 7 is also connected to blow down valve a2, blow down valve b3, and between each valve pass through bend pipe 8
It is connected with each other with connecting flange 9.The device can adjust Purge methods by controlling the opening and closing of each blow down valve, purge flange
Conducive to the flow field of the intracavitary stacking material of blow down valve, furthermore angle setting between entrance 1 and wear-resisting valve body tangent line can be formed with
The setting of relief valve 7 can prevent the generation to build the pressure in wear-resisting valve body, and entire purging pressure relief device is removable setting.
The above is only the utility model preferred embodiments, are not intended to limit the embodiments of the present invention and protection
Range should can appreciate that all with the utility model specification and diagramatic content institute to those skilled in the art
The equivalent replacement made and obviously change obtained scheme, the protection scope of the utility model should all be included in
It is interior.
Claims (9)
1. a kind of purging pressure relief device characterized by comprising wear-resisting valve body, several blow down valves and a purging main valve, it is described
Side wall of the wear-resisting valve body close to primary sealing area one end is uniformly provided with several purging flange entrances, and each purging flange enters
A blow down valve is installed in mouthful, and is interconnected between several blow down valves, wherein between the two adjacent blow down valves
It is also communicated with a purging main valve, in addition, the side wall of the wear-resisting valve body is additionally provided with relief valve, the relief valve and wherein two
The blow down valve connection.
2. a kind of purging pressure relief device according to claim 1, which is characterized in that the section of the wear-resisting valve body is circle
The angle α of shape, the tangential direction of the Way in and wear-resisting valve body of each purging flange entrance is 45 °.
3. a kind of purging pressure relief device according to claim 1, which is characterized in that the blow down valve and the purging flange
Entrance is no less than three.
4. a kind of purging pressure relief device according to claim 1, which is characterized in that pass through between adjacent two blow down valve
Bend pipe and connecting flange are connected with each other.
5. a kind of purging pressure relief device according to claim 4, which is characterized in that the both ends of each section of bend pipe are all provided with
It is equipped with a connecting flange.
6. a kind of purging pressure relief device according to claim 1, which is characterized in that be provided with two institutes of the purging main valve
It states and is additionally provided with bypass valve between blow down valve.
7. a kind of purging pressure relief device according to claim 1, which is characterized in that the relief valve and the anti-friction valve valve
Intracorporal low-pressure side connection.
8. a kind of purging pressure relief device according to claim 6, which is characterized in that several blow down valves, the purging
Main valve, the bypass valve and the relief valve are to manually control.
9. a kind of purging pressure relief device according to claim 6, which is characterized in that several blow down valves, the purging
Main valve, the bypass valve and the relief valve are to automatically control, several blow down valves, the purging main valve, the branch
Road valve and the relief valve are electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822186482.0U CN209370541U (en) | 2018-12-20 | 2018-12-20 | A kind of purging pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822186482.0U CN209370541U (en) | 2018-12-20 | 2018-12-20 | A kind of purging pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209370541U true CN209370541U (en) | 2019-09-10 |
Family
ID=67830820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822186482.0U Active CN209370541U (en) | 2018-12-20 | 2018-12-20 | A kind of purging pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209370541U (en) |
-
2018
- 2018-12-20 CN CN201822186482.0U patent/CN209370541U/en active Active
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