CN209604656U - A kind of straight-through stop valve that sealing performance is high - Google Patents
A kind of straight-through stop valve that sealing performance is high Download PDFInfo
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- CN209604656U CN209604656U CN201822261269.1U CN201822261269U CN209604656U CN 209604656 U CN209604656 U CN 209604656U CN 201822261269 U CN201822261269 U CN 201822261269U CN 209604656 U CN209604656 U CN 209604656U
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- valve
- flange
- flap
- sealing performance
- valve body
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Abstract
The utility model discloses a kind of straight-through stop valves that sealing performance is high, including valve body, the top of valve body is connected with valve flange, the top of valve flange is provided with bonnet flange, valve flange and bonnet flange pass through fastening bolt Joint, the top of bonnet flange is provided with valve deck, axially through being provided with valve rod in valve deck, perforation offers valve chamber in valve body, the bottom end perforation of valve rod extends in valve chamber, the bottom end of valve rod is connected with fixed column, the bottom end of fixed column is connected with fixed fixture block, the outboard end of fixed fixture block is fixedly installed with flap, graphite packing is filled between the top and fixed column of flap, the outboard end of flap is around coated with flap coating.The utility model improves the leakproofness of valve block upper half point by sealing ring and graphite packing, oozing out from gap for flow media is prevented, flap corrosion resistance is strong, and rigidity and wear resistance are high, cut-off effect is effectively played in conjunction with graphite flap coating, there is good sealing performance.
Description
Technical field
The utility model relates to valve field, in particular to a kind of straight-through stop valve that sealing performance is high.
Background technique
Shut-off valve is also pipe valve, also known as pipe valve valve, is a kind of one of most popular valve, belongs to forced seal formula
Valve, so when valve is closed, it is necessary to apply pressure to flap, not leaked with forced seal face.When medium is by below flap
When into valve, the resistance overcome required for operating force, be valve rod and filler frictional force with as caused by the pressure of medium
The power of thrust, closing valve is bigger than the power of valve opening door, so the diameter of valve rod is big, the failure of valve rod bending otherwise can occur, press
Connection type is divided into three kinds: flanged joint, screwed connection, welded connecting, shut-off valve currently on the market generally include valve body, valve
Lid, valve rod and flap when flow of media, leak easily between valve rod and valve deck.Valve rod drives flap rotation, valve clack sealing surface
It can produce relative rotation with sealing valve port face, then valve clack sealing surface is prone to wear, and influences leakproofness and service life.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of existing technologies, and provides a kind of sealing performance high straight
General formula shut-off valve effectively prevent oozing out from gap for flow media, and flap corrosion resistance is strong, improves the rigidity of flap and wear-resisting
Degree effectively acts as cut-off sealing function in conjunction with equadag coating, has good sealing performance.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
A kind of straight-through stop valve that sealing performance is high of the utility model, including valve body, the top of the valve body are connected with
Valve flange, the top of the valve flange are provided with bonnet flange, and the valve flange and bonnet flange pass through fastening bolt
Joint, the top of the bonnet flange are provided with valve deck, and the valve deck is interior axially through valve rod is provided with, and passes through in the valve body
It opens up and is equipped with valve chamber, the bottom end perforation of the valve rod extends in valve chamber, and the bottom end of the valve rod is connected with fixed column, described solid
The bottom end of fixed column is connected with fixed fixture block, and the outboard end of the fixed fixture block is fixedly installed with flap, the top of the flap with
Graphite packing is filled between fixed column, the outboard end of the flap is around coated with flap coating, the valve flange and valve
It is filled with sealed graphite filler between lid flange and valve rod, is surrounded with rubber between the valve rod and the inner bottom of valve deck
The top of sealing ring, the valve rod is connected with handwheel.
As a kind of optimal technical scheme of the utility model, the both ends of the valve body be respectively arranged with the first runner pipe and
The inner wall connecting pin of second runner pipe, first runner pipe and valve body is provided with the first cut-off protrusion, second circulation
The inner wall connecting pin of pipe and valve body is provided with the second cut-off protrusion, and the flap is located at the first cut-off protrusion and the second cut-off
Between protrusion.
As a kind of optimal technical scheme of the utility model, the outboard end of first runner pipe is connected with the first connection
The outboard end of flange, second runner pipe is connected with the second connecting flange.
As a kind of optimal technical scheme of the utility model, the outside of first connecting flange and the second connecting flange
End is provided with rubber gasket.
As a kind of optimal technical scheme of the utility model, the valve body is made by WCB steel.
As a kind of optimal technical scheme of the utility model, the flap is made by 2Cr13 stainless steel.
As a kind of optimal technical scheme of the utility model, the flap coating is made by soft graphite.
Compared with prior art, the beneficial effects of the utility model are as follows:
The utility model by the way that sealing ring is arranged between valve deck and valve rod, bonnet flange, valve flange and valve rod it
Between graphite packing is set, improve the leakproofness of valve block upper half point, effectively prevent oozing out from gap for flow media, connecting flange
The rubber gasket in outside improves the leakproofness of pipeline connection, prevents leaking for flow media, and flap uses the stainless steel of 2Cr13
At corrosion resistance is strong, improves the rigidity and wear resistance of flap, effectively acts as cut-off sealing in conjunction with graphite flap coating and makees
With with good sealing performance.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the schematic diagram of internal structure of the utility model；
Fig. 3 is the partial structural diagram of the utility model；
In figure: 1, valve body；2, valve flange；3, bonnet flange；4, fastening bolt；5, valve deck；6, valve rod；7, valve chamber；8,
Fixed column；9, fixed fixture block；10, flap；11, graphite packing；12, flap coating；13, sealed graphite filler；14, rubber is close
Seal；15, the first runner pipe；16, the second runner pipe；17, the first cut-off protrusion；18, the second cut-off protrusion；19, first
Connecting flange；20, the second connecting flange；21, rubber gasket；22, handwheel.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.Wherein identical mark in attached drawing
Number all refer to identical component.
In addition, if the detailed description of known technology for show the utility model be characterized in it is unnecessary, then by it
It omits.It should be noted that term " setting ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, it is also possible to
It is detachably connected, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also lead to
It crosses intermediary to be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be with
Concrete condition understands the concrete meaning of above-mentioned term in the present invention, is not understood to indicate or imply relative importance.
Embodiment 1
As shown in Figure 1-3, the utility model provides a kind of straight-through stop valve that sealing performance is high, including valve body 1, valve body
1 top is connected with valve flange 2, and the top of valve flange 2 is provided with bonnet flange 3, and valve flange 2 and bonnet flange 3 are logical
Cross 4 Joint of fastening bolt, the top of bonnet flange 3 is provided with valve deck 5, axially through being provided with valve rod 6, valve body 1 in valve deck 5
Interior perforation offers valve chamber 7, and the bottom end perforation of valve rod 6 extends in valve chamber 7, and the bottom end of valve rod 6 is connected with fixed column 8, fixed
The bottom end of column 8 is connected with fixed fixture block 9, and the outboard end of fixed fixture block 9 is fixedly installed with flap 10, the top of flap 10 and fixation
Graphite packing 11 is filled between column 8, the outboard end of flap 10 is around coated with flap coating 12, valve flange 2 and valve deck method
It is filled with sealed graphite filler 13 between orchid 3 and valve rod 6, is surrounded with rubber between valve rod 6 and the inner bottom of valve deck 5
Sealing ring 14, the top of valve rod 6 are connected with handwheel 22, improve inner sealing, 10 long service life of flap.
Further, the both ends of valve body 1 are respectively arranged with the first runner pipe 15 and the second runner pipe 16, the first runner pipe 15
The inner wall connecting pin of valve body 1 is provided with the first cut-off protrusion 17, the inner wall connecting pin of the second runner pipe 16 and valve body 1 is set
It is equipped with the second cut-off protrusion 18, flap 10 is located between the first cut-off protrusion 17 and the second cut-off protrusion 18, is convenient for valve
Valve 10 contacts to form sealing state with cut-off protruding portion.
The outboard end of first runner pipe 15 is connected with the first connecting flange 19, and the outboard end of the second runner pipe 16 is connected with
Two connecting flanges 20, convenient for being connect with pipeline.
The outboard end of first connecting flange 19 and the second connecting flange 20 is provided with rubber gasket 21, prevents pipeline from connecting
Connect rear liquid medium outflow.
Valve body 1 is made by WCB steel, and intensity, hardness are high, guarantees that valve body is used for a long time.
Flap 10 is made by 2Cr13 stainless steel, and hardness and impact resistance are strong, long service life.
Flap coating 12 is made by soft graphite, has wearability, is suitable for dynamic sealing conditions.
Specifically, connect by the first connecting flange 19 and the second connecting flange 20 with external pipe when installation, flange
The connection end in contact of rubber gasket 21 and external pipe, plays sealing function, prevents liquid medium from leaking, after the completion of connection,
Liquid medium circulation can pass through valve chamber 7, when needing stopping liquid medium, rotate handwheel 22, handwheel 22 is rotated with ovable valve stem 6, valve
Bar 6 drives fixed column 8 and fixed fixture block 9, to drive flap 10 to rotate down, until flap 10 and the first cut-off protrusion
17 and second cut-off protrusion 18 contact, flap 10 with first cut-off protrusion 17 and second end protrusion 18 contact to be formed it is close
Seal ring border completely cuts off valve chamber 7, prevents liquid medium from continuing to circulate, the graphite between bonnet flange 3, valve flange 2 and valve rod 6
Filler 11 and rubber seal 14 play sealing function, prevent liquid medium from passing through the seam between bonnet flange 3 and valve flange 2
Gap or the outflow of 5 tip leakage of valve deck, overall tightness is strong, and practicability is high.
The utility model is by being arranged sealing ring between valve deck 5 and valve rod 6, in bonnet flange 3, valve flange 2 and valve
Graphite packing 11 is set between bar 6, improves the leakproofness of 1 top half of valve body, effectively prevent oozing out from gap for flow media,
Rubber gasket 21 on the outside of connecting flange improves the leakproofness of pipeline connection, prevents leaking for flow media, and flap 10 uses
2Cr13 stainless steel is made, and corrosion resistance is strong, improves the rigidity and wear resistance of flap 10, effective in conjunction with graphite flap coating 12
Ground plays cut-off sealing function, has good sealing performance.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of straight-through stop valve that sealing performance is high, including valve body (1), which is characterized in that the top of the valve body (1) is solid
It is connected to valve flange (2), the top of the valve flange (2) is provided with bonnet flange (3), the valve flange (2) and valve deck
Flange (3) is provided with valve deck (5) by fastening bolt (4) Joint, the top of the bonnet flange (3), in the valve deck (5)
Axially through being provided with valve rod (6), perforation is offered valve chamber (7) in the valve body (1), and the bottom end perforation of the valve rod (6) is prolonged
It extends in valve chamber (7), the bottom end of the valve rod (6) is connected with fixed column (8), and the bottom end of the fixed column (8) is connected with fixation
The outboard end of fixture block (9), the fixed fixture block (9) is fixedly installed with flap (10), the top of the flap (10) and fixed column
(8) graphite packing (11) are filled between, the outboard end of the flap (10) is around coated with flap coating (12), the valve body
Sealed graphite filler (13) are filled between flange (2) and bonnet flange (3) and valve rod (6), the valve rod (6) and valve deck (5)
Inner bottom between be surrounded with rubber seal (14), the top of the valve rod (6) is connected with handwheel (22).
2. a kind of high straight-through stop valve of sealing performance according to claim 1, which is characterized in that the valve body (1)
Both ends be respectively arranged with the first runner pipe (15) and the second runner pipe (16), first runner pipe (15) and valve body (1)
Inner wall connecting pin is provided with the first cut-off protrusion (17), and second runner pipe (16) and the inner wall connecting pin of valve body (1) are set
It is equipped with the second cut-off protrusion (18), the flap (10) is located at the first cut-off protrusion (17) and the second cut-off protrusion (18)
Between.
3. a kind of high straight-through stop valve of sealing performance according to claim 2, which is characterized in that first circulation
The outboard end of pipe (15) is connected with the first connecting flange (19), and the outboard end of second runner pipe (16) is connected with the second connection
Flange (20).
4. a kind of high straight-through stop valve of sealing performance according to claim 3, which is characterized in that first connection
The outboard end of flange (19) and the second connecting flange (20) is provided with rubber gasket (21).
5. a kind of high straight-through stop valve of sealing performance according to claim 1, which is characterized in that the valve body (1)
It is to be made by WCB steel.
6. a kind of high straight-through stop valve of sealing performance according to claim 1, which is characterized in that the flap (10)
It is to be made by 2Cr13 stainless steel.
7. a kind of high straight-through stop valve of sealing performance according to claim 1, which is characterized in that the flap coating
It (12) is made by soft graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822261269.1U CN209604656U (en) | 2018-12-30 | 2018-12-30 | A kind of straight-through stop valve that sealing performance is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822261269.1U CN209604656U (en) | 2018-12-30 | 2018-12-30 | A kind of straight-through stop valve that sealing performance is high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209604656U true CN209604656U (en) | 2019-11-08 |
Family
ID=68399254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822261269.1U Active CN209604656U (en) | 2018-12-30 | 2018-12-30 | A kind of straight-through stop valve that sealing performance is high |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209604656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728189A (en) * | 2020-12-23 | 2021-04-30 | 成都日进冶金锻造有限公司 | Canned type integrated form valve body |
-
2018
- 2018-12-30 CN CN201822261269.1U patent/CN209604656U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728189A (en) * | 2020-12-23 | 2021-04-30 | 成都日进冶金锻造有限公司 | Canned type integrated form valve body |
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