CN206874871U - Antistatic fire-retardant ball valve - Google Patents
Antistatic fire-retardant ball valve Download PDFInfo
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- CN206874871U CN206874871U CN201720622983.1U CN201720622983U CN206874871U CN 206874871 U CN206874871 U CN 206874871U CN 201720622983 U CN201720622983 U CN 201720622983U CN 206874871 U CN206874871 U CN 206874871U
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- ball valve
- valve core
- valve body
- guide block
- retardant
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Abstract
The utility model discloses a kind of antistatic fire-retardant ball valve, it is mountable on pumped (conveying) medium pipeline, its structure includes valve body, bonnet, valve seat, ball valve core, valve rod and handle etc., anti-static device is set mainly between valve body and ball valve core, and by the electrostatic guide block movable contact of elastic pushing tow on ball valve core, so as to which the electrostatic on ball valve core surface be exported, prevent buildup of static electricity from pipeline blast accident occurs；And magnetic patch adsorption electrostatic guide block can be set in ball valve core outer surface, to ensure that ball valve core is in electrostatic conducting state when frequently switching on all the time；In addition, valve seat is tightly matched and sleeved in support ring, soft, the hard Double sealing type fireproof structure formed between valve seat and ball valve core, then valve seat damage, support ring top can also produce with the outer surface of ball valve core and contact the interim hard sealing of formation, so as to prevent inflammable dielectric leakage, prevent fire from aggravating.Ball valve antistatic fire-retardant after improvement, and simple in construction, easy assembling, easy processing, manufacturing cost are low.
Description
Technical field
It the utility model is related to a kind of ball-valve structure being installed on pumped (conveying) medium pipeline, in particular to antistatic fire-retardant ball
Valve.
Background technology
Ball valve has the advantages that small fluid resistance, compact-sized, sealed reliable, easy to operate, easy to maintenance, so as to extensively
Applied to oil, chemical industry, generating, aviation and hot-water heating etc., the manual ball valve especially directly coupled at present with pipeline, it is tied
Structure is mainly made up of valve body, bonnet, valve seat, ball valve core, valve rod and handle etc., simply, is easily operated due to designing, therefore
Turn into most commonly seen valve species in daily life.
Ball valve can have phase mutual friction when switching manipulation is carried out between ball valve core and valve seat, the friction produces
Electrostatic may build up on ball valve core, this is not allow to occur for the ball valve used in combustion gas, fuel oil, chemical industry conduit
, it is possible to pipeline blast accident can be caused, and the ball valve of electrostatic prevention structure is equipped with electrostatic guiding device, can be incited somebody to action in the very first time
The electrostatic charge export on ball valve core surface, the operation of effective guarantee pipe safety are gathered in, but this kind of Antistatic ball valve is mostly
Electric installation is set simultaneously between valve body and valve rod and ball valve core, assembled complex.
In addition, when fire occurs when making the valve seat scaling loss of ball valve, the fire proof construction that is designed on ball valve plays emergent close
Envelope acts on, and medium can be prevented largely to leak and condition of a fire sprawling to a certain extent, and current fire proof construction is to be set directly at
On valve body, difficulty of processing is higher, also improves the manufacturing cost of ball valve.
The content of the invention
The defects of technical problem to be solved in the utility model is to overcome prior art and provide it is a kind of it is simple in construction,
The relatively low antistatic fire-retardant ball valve of easy assembling, easy processing, manufacturing cost.
Technical problem of the present utility model is achieved through the following technical solutions：
A kind of antistatic fire-retardant ball valve, including valve body, bonnet, valve seat, ball valve core, valve rod and handle, described valve body
Anti-static device is provided between ball valve core, the anti-static device includes being arranged in valve body and elastic pushing tow movable contact exists
Electrostatic guide block on ball valve core, described valve body export the electrostatic on the ball valve core surface through electrostatic guide block.
Described ball valve core outer surface is provided with the magnetic patch for adsorbing the electrostatic guide block.
Described electrostatic guide block is by spherical structure movable contact on magnetic patch.
Described anti-static device is arranged between valve body inner bottom surface and ball valve core bottom, and described valve body inner bottom surface is set
There is shoulder hole and be arranged in shoulder hole and be fixed on ball valve core by the electrostatic guide block of elastic pushing tow, described magnetic patch setting-in
Bottom.
Described shoulder hole has inner aperture and outer end macropore, and the inner aperture is provided with spring, described electrostatic guide block
It is arranged in the macropore of outer end, and by the elastic pushing tow of spring.
Described shoulder hole is arranged in the disjunctor boss that body base extends downwardly.
Described valve seat is tightly matched and sleeved in a support ring.
Described support ring inner face is provided with bulge loop, and described valve seat is tightly matched and sleeved on the bulge loop；Described support ring
The sealing ring for forming sealing installation is provided between outer face and valve interior surface or bonnet inner surface.
Described valve interior surface and bonnet inner surface is respectively equipped with the annular groove around entrance point and the port of export, and described is close
Seal setting-in is fixed in the annular groove.
Compared with prior art, electrostatic prevention structure of the present utility model be mainly disposed to the valve body of ball valve and ball valve core it
Between, and by the electrostatic guide block movable contact of elastic pushing tow on ball valve core, so as to which the electrostatic on ball valve core surface be exported,
Pipeline blast accident occurs after preventing buildup of static electricity；And the also settable magnetic patch adsorption electrostatic guide block in ball valve core outer surface, to protect
Card ball valve core can be in electrostatic conducting state all the time when frequently switching on；In addition, unique fire proof construction is that valve seat is tight
With being sleeved in a support ring, there is soft seal and the dual-seal knot sealed firmly so as to be formed between valve seat and ball valve core
Structure, then when valve seat is damaged because of fire, it is interim hard that support ring top just can contact formation with the outer surface generation of ball valve core
Sealing, so as to prevent inflammable medium from largely leaking, effectively prevents fire from further aggravating.Ball valve after improvement is provided simultaneously with anti-quiet
Electric fireproof function, and structure design is simple, solve and between valve body and valve rod and ball valve core while set anti-quiet at present
The problem of electric Standard complexity；And fire proof construction makes directly to set support ring on valve seat, compared to ball valve generally in valve body
Portion is set, and is reduced difficulty of processing, is also reduced manufacturing cost.
Brief description of the drawings
Fig. 1 is cross section structure diagram of the present utility model.
Fig. 2 is the cross section structure diagram of valve body.
Fig. 3 is the broken section structural representation of electrostatic prevention structure.
Fig. 4 is the cross section structure diagram of ball valve core.
Fig. 5 is the cross section structure diagram of support ring.
Embodiment
The utility model embodiment will be elaborated again by above-mentioned accompanying drawing below.
As shown in Fig. 1 ~ Fig. 5,1. bonnets, 2. ball valve cores, 21. limbers, 22. flat grooves, 23. mounting grooves, 3. static guidings
Block, 4. springs, 5. magnetic patch, 6. valve seats, 7. support rings, 71. bulge loops, 8. valve bodies, 81. shoulder holes, 811. outer end macropores, in 812.
Hold aperture, 82. disjunctor boss, 83. annular grooves, 9. sealing rings, 10. valve rods, 11. two pass "O"-rings, 12. handles, 13. nuts.
Antistatic fire-retardant ball valve, as shown in figure 1, being related to a kind of ball valve being installed on pumped (conveying) medium pipeline, its structure master
If it is made up of valve body 8, bonnet 1, valve seat 6, ball valve core 2, valve rod 10 and handle 12 etc..
Described valve body 8 and bonnet 1 according to being located at left and right position respectively shown in Fig. 1, then connects by way of screw thread screws
One is connect, the left side of the integrative-structure, the i.e. left side of valve body 8 have entrance point, and the right side of integrative-structure, the i.e. right side of bonnet 1 have
The port of export, so as to form two-way valve body, import and export end is set in the same horizontal line, and by pipe screw thread connecting line simultaneously
Connect therewith.
Described ball valve core 2 is arranged in valve body 8 by valve seat 6, sealing of the valve seat 6 mainly as ball valve core 2
Supporting member, and the rotary seal of ball valve core 2 is supported in valve seat 6；Described ball valve core 2 is as shown in figure 4, which is provided with
The limbers 21 of level insertion, drives break-make of the limbers 21 in valve body 8, so as to realize by the rotation of ball valve core 2
The keying at import and export end, the top of ball valve core 2 are additionally provided with flat groove 22.
Meanwhile anti-static device, the structure of the anti-static device are provided between the inner bottom surface of valve body 8 and the bottom of ball valve core 2
As shown in Figure 3：The inner bottom surface of valve body 8 is provided with shoulder hole 81, and the shoulder hole is arranged on the disjunctor boss 82 that the bottom of valve body 8 extends downwardly
Interior, it is made up of inner aperture 812 and outer end macropore 811, i.e., bottom aperture and top aperture shown in Fig. 2, in inner aperture
812 are provided with spring 4, and outer end macropore 811 is provided with the electrostatic guide block 3 by 4 elastic pushing tow of spring, and electrostatic guide block is in gravity under normality
The lower pressing spring 4 of effect is in shoulder hole 81；The described bottom of ball valve core 2 is fixed in default mounting groove 23 provided with setting-in
Magnetic patch 5, when ball valve core 2 load valve body 8 in when, electrostatic guide block 3 can be just move upwardly until under the magneticaction of magnetic patch 5
Adsorbed by magnetic patch, that is, the structural relation of movable contact is formed between electrostatic guide block 3 and magnetic patch 5, then ball valve core 2 and valve body
Also connection status is just between 8 all the time, therefore the electrostatic on the surface of ball valve core 2 can be exported, prevents generator tube after buildup of static electricity
Road blast accident.
In order to ensure that the purpose of movable contact is realized between electrostatic guide block 3 and magnetic patch 5, the electrostatic guide block 3 will pass through sphere
Form touch is on magnetic patch 5, therefore one prill of electrostatic guide block generally use.Assemble the ball valve core 2 and antistatic completed
Device, magnetic patch 5, electrostatic guide block 3 and spring 4 are exactly on the rotational axis line of ball valve core 2.
In addition, support ring 7 has two, and the both sides of valve seat 6 are separately positioned on, its structure is as shown in figure 5, in support ring 7
End face is provided with bulge loop 71, and valve seat 6 is tightly matched and sleeved on the bulge loop 71, in the outer face of support ring 7 and the inner surface of valve body 8 or bonnet 1
The sealing ring 9 for forming sealing installation is provided between surface, concrete structure is：The inner surface of valve body 8 is provided around the annular groove of entrance point
83, the inner surface of bonnet 1 also is provided with surrounding the annular groove 83 of the port of export, then the setting-in of sealing ring 9 is fixed in the annular groove 83, so as to structure
Into the sealing installation structure of support ring 7.
Described valve rod 10 is arranged on the top of valve body 8 by the rotary seal of two pass "O"-ring 11, and the lower end of valve rod 10 passes through
Flat bar is fitted in the flat groove 22 at the top of ball valve core 2, and the upper end of valve rod 10 stretches out valve body 8 and is installed with handle through nut 13
12, therefore handle rotation can the drive realization rotation switching motion of ball valve core 2 of driving stem 10.
This antistatic fire-retardant ball valve mainly by setting anti-static device between the valve body 8 and ball valve core 2 of ball valve,
So that ball valve core to be connected with valve body 8, and then causing the electrostatic accumulated on ball valve core 2 to export because valve frequently switches on,
Prevent because causing pipeline blast accident after buildup of static electricity；One support ring 7 is set also on valve seat 6, forms valve seat 6 and ball valve
There is soft seal and the double sealing structure sealed firmly, when valve seat 6 is damaged because of fire, the support ring 7 on valve seat between core 2
It can be produced with the outer surface of ball valve core 2 and contact the interim hard sealing of formation, prevent inflammable medium from largely leaking, so as to prevent fire
Further aggravate.
The utility model is simple in construction, solves the problems, such as that current Antistatic ball valve assembling is difficult, while fire proof construction is set
On valve seat 6, also solve valve body difficulty of processing, reduce production cost.
Claims (9)
1. a kind of antistatic fire-retardant ball valve, including valve body（8）, bonnet（1）, valve seat（6）, ball valve core（2）, valve rod（10）And hand
Handle（12）, it is characterised in that described valve body（8）With ball valve core（2）Between be provided with anti-static device, the anti-static device bag
Include and be arranged on valve body（8）Interior and elastic pushing tow movable contact is in ball valve core（2）On electrostatic guide block（3）, described valve body（8）
Through electrostatic guide block（3）By the ball valve core（2）The electrostatic export on surface.
2. antistatic fire-retardant ball valve according to claim 1, it is characterised in that described ball valve core（2）Outer surface is provided with
Adsorb the electrostatic guide block（3）Magnetic patch（5）.
3. antistatic fire-retardant ball valve according to claim 2, it is characterised in that described electrostatic guide block（3）Pass through sphere knot
Structure movable contact is in magnetic patch（5）On.
4. antistatic fire-retardant ball valve according to claim 2, it is characterised in that described anti-static device is arranged on valve body
（8）Inner bottom surface and ball valve core（2）Between bottom, described valve body（8）Inner bottom surface is provided with shoulder hole（81）Be arranged on ladder
In hole and by the electrostatic guide block of elastic pushing tow（3）, described magnetic patch（5）Setting-in is fixed on ball valve core（2）Bottom.
5. antistatic fire-retardant ball valve according to claim 4, it is characterised in that described shoulder hole（81）With inner small
Hole（812）With outer end macropore（811）, the inner aperture（812）Provided with spring（4）, described electrostatic guide block（3）It is arranged on outer end
Macropore（811）It is interior, and by spring（4）Elastic pushing tow.
6. antistatic fire-retardant ball valve according to claim 4, it is characterised in that described shoulder hole（81）It is arranged on valve body
（8）The disjunctor boss that bottom extends downwardly（82）It is interior.
7. antistatic fire-retardant ball valve according to claim 1, it is characterised in that described valve seat（6）It is tightly matched and sleeved at one
Hold circle（7）It is interior.
8. antistatic fire-retardant ball valve according to claim 7, it is characterised in that described support ring（7）Inner face is provided with convex
Ring（71）, described valve seat（6）It is tightly matched and sleeved at the bulge loop（71）On；Described support ring（7）Outer face and valve body（8）Interior table
Face or bonnet（1）The sealing ring for forming sealing installation is provided between inner surface（9）.
9. antistatic fire-retardant ball valve according to claim 8, it is characterised in that described valve body（8）Inner surface and bonnet
（1）Inner surface is respectively equipped with the annular groove around entrance point and the port of export（83）, described sealing ring（9）Setting-in is fixed on the annular groove
（83）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720622983.1U CN206874871U (en) | 2017-06-01 | 2017-06-01 | Antistatic fire-retardant ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720622983.1U CN206874871U (en) | 2017-06-01 | 2017-06-01 | Antistatic fire-retardant ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206874871U true CN206874871U (en) | 2018-01-12 |
Family
ID=61337657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720622983.1U Active CN206874871U (en) | 2017-06-01 | 2017-06-01 | Antistatic fire-retardant ball valve |
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| Country | Link |
|---|---|
| CN (1) | CN206874871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963574A (en) * | 2021-03-01 | 2021-06-15 | 安徽斯瑞尔阀门有限公司 | Valve surface static electricity removing device and implementation method thereof |
| CN113330241A (en) * | 2018-10-30 | 2021-08-31 | 川崎重工业株式会社 | Emergency release mechanism for fluid handling device |
-
2017
- 2017-06-01 CN CN201720622983.1U patent/CN206874871U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113330241A (en) * | 2018-10-30 | 2021-08-31 | 川崎重工业株式会社 | Emergency release mechanism for fluid handling device |
| CN113330241B (en) * | 2018-10-30 | 2023-01-10 | 川崎重工业株式会社 | Emergency release mechanism for fluid handling device |
| CN112963574A (en) * | 2021-03-01 | 2021-06-15 | 安徽斯瑞尔阀门有限公司 | Valve surface static electricity removing device and implementation method thereof |
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