CN206419493U - A kind of Double sealing globe valve - Google Patents
A kind of Double sealing globe valve Download PDFInfo
- Publication number
- CN206419493U CN206419493U CN201621141506.5U CN201621141506U CN206419493U CN 206419493 U CN206419493 U CN 206419493U CN 201621141506 U CN201621141506 U CN 201621141506U CN 206419493 U CN206419493 U CN 206419493U
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- Prior art keywords
- valve
- sealing
- flap
- bonnet
- seal
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- 238000007789 sealing Methods 0.000 title claims abstract description 67
- 239000010935 stainless steel Substances 0.000 claims abstract description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 13
- 239000004677 Nylon Substances 0.000 claims abstract description 6
- 229920001778 nylon Polymers 0.000 claims abstract description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 claims description 4
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910002804 graphite Inorganic materials 0.000 abstract description 8
- 239000010439 graphite Substances 0.000 abstract description 8
- 230000035699 permeability Effects 0.000 abstract description 5
- 239000007769 metal material Substances 0.000 abstract description 4
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 229920001971 elastomer Polymers 0.000 abstract description 3
- 239000005060 rubber Substances 0.000 abstract description 3
- 239000007779 soft material Substances 0.000 abstract description 2
- 241000283216 Phocidae Species 0.000 description 23
- 210000003660 reticulum Anatomy 0.000 description 15
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Lift Valve (AREA)
- Valve Housings (AREA)
Abstract
The utility model discloses a kind of Double sealing globe valve, including flap and valve body, flap sealing passes through hard sealing ring and soft seal circle fitted seal.The invention also discloses a kind of Double sealing globe valve, including flap and valve body, flap sealing passes through sealing ring pressure ring and composite sealing ring fitted seal.The sealing of flap can pass through two kinds of forms：First, sealed using soft or hard two-stage, hard sealing ring is used as sealing surface using the metal materials such as stainless steel, hard alloy, soft seal circle using soft materials such as PTFE, NYLON, rubber；2nd, directly zero leakage of sealing surface ensure that by the combined use of soft and hard seal, be particularly suitable for use in the stronger occasion of the permeability such as gas medium, substantially increase conduit running security using the composite sealing ring made by stainless steel plate and flexible graphite plate.
Description
Technical field
The utility model is related to a kind of stop valve, specifically a kind of Double sealing globe valve.
Background technology
Stop valve is also known as pipe valve valve, belongs to forced seal formula valve, so when valve is closed, it is necessary to applies to flap and presses
Power, is not leaked with forced seal face.When medium enters valve below flap, the resistance overcome required for operating physical force, is valve
The frictional force of bar and filler with as the thrust produced by the pressure of medium, the power of closing valve is bigger than the power of valve opening door, so valve rod
Diameter it is big, otherwise can occur the failure of valve rod bending.It is divided into three kinds by connected mode：Flange connection, screwed connection, welding
Connection.After the valve of self sealss occurs, the medium flow direction of stop valve just changes enters valve pocket above flap, at this moment in medium pressure
Under power effect, the power of closing valve is small, and the power of valve opening door is big, and the diameter of valve rod can be reduced correspondingly.Meanwhile, in medium effect
Under, the valve of this form is also tighter.When stop valve is opened, the Lift of flap is the 25%~30% of nominal diameter
When, flow has reached maximum, represents that valve reaches fully open position.So the fully open position of stop valve, should by the stroke of flap Lai
Determine.Existing stop valve is poor in the applicability of the stronger occasion of the permeability such as gas medium, leverages pipeline fortune
Row security.
Utility model content
The purpose of this utility model is to provide a kind of Double sealing globe valve, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the utility model provides following technical scheme：
A kind of Double sealing globe valve, including flap and valve body, flap sealing pass through hard sealing ring and soft seal circle
Fitted seal.Soft seal circle is made of PTFE, NYLON or elastomeric material；Hard sealing ring is closed using stainless steel or hard
Golden material is made.
Another technical scheme that the utility model is provided, a kind of Double sealing globe valve, including flap and valve body, flap
Sealing passes through sealing ring pressure ring and composite sealing ring fitted seal.The composite sealing ring includes layer flexible graphite cake and multilayer
Stainless steel plate, and flexible graphite plate and stainless steel plate be intervally arranged.
As the improvement of above-mentioned technical proposal, the sealing surface of the valve body and sealing ring uses conical seal (contact) face.
Compared with prior art, the beneficial effects of the utility model are：
The Double sealing globe valve is reasonable in design, and compact conformation is simple, and manufacturing process is simple, and the sealing of flap can pass through two
The form of kind：First, sealed using soft or hard two-stage, hard sealing ring is using metal materials, soft seal circle such as stainless steel, hard alloy
Sealing surface is used as using soft materials such as PTFE, NYLON, rubber；2nd, directly use and made by stainless steel plate and flexible graphite plate
Composite sealing ring, zero leakage of sealing surface ensure that by the combined use of soft and hard seal, gas medium etc. is particularly suitable for use in
The stronger occasion of permeability, substantially increases conduit running security；The Double sealing globe valve also has good airproof performance, made
With long lifespan, small volume, the advantage that lightweight, material consumption is few, installation dimension is small, fast opening and closing can be achieved, it is easy to use,
Improve operating efficiency.
Brief description of the drawings
Fig. 1 is the overall structure diagram of Double sealing globe valve.
Fig. 2 is the partial structurtes enlarged drawing of the embodiment one of Double sealing globe valve.
Fig. 3 is the partial structurtes enlarged drawing of the embodiment two of Double sealing globe valve.
Wherein：1- valve bodies；2A- hard sealing rings；2B- sealing ring pressure rings；3- trip bolts；4A- soft seal circles；4B-
Composite sealing ring；5- flaps；6- valve rods；7- flap glands；8- sealing rings；9- gasket seals；10- bonnets；11- studs；12- six
Angle screw；13- fillers；14- filler pressing sleeves；15- hold-down grids；16- bearing pins；17- lifting bolts；The hex nuts of 18- first；
19- valve stem nuts；20- holding screws；21- handwheels；22- plain washers；The hex nuts of 23- second；24- flexible graphite plates；25- is not
Become rusty steel plate, 26- conical seal (contact) faces.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Embodiment one
Fig. 1-2, a kind of Double sealing globe valve, including flap 5 and valve body 1 are referred to, the sealing of flap 5 is sealed by hard
Enclose 2A and soft seal circle 4A fitted seals.The sealing surface of the valve body 1 uses conical seal (contact) face 26, so reduces operating physical force.
Fixed between flap 5 and valve body 1 by trip bolt 3, in the groove inside the lower end of valve rod 6 insertion flap 5, and valve
Valve 5 is fastened with valve rod 6 by flap gland 7；The upper end of valve body 1 passes through multiple studs 11 and multiple hex screws 12 and bonnet
10 are fixedly connected, and the junction of the valve body 1 and bonnet 10 is also equipped with gasket seal 9, and valve rod 6 passes through bonnet 10, and valve rod 6
Upper seal support 8 is installed between bonnet 10, the upper end of upper seal support 8 is filler 13, and the upper end of filler 13 is provided with filler pressing sleeve 14,
The upper end of filler pressing sleeve 14 is connected to hold-down grid 15, and hold-down grid 15 passes through two bearing pins 16, two lifting bolts 17 and two
The cooperation of first hex nut 18 is connected with bonnet 10, and the upper end of bonnet 10 is provided with valve stem nut 19, and valve stem nut 19 is by tight
Determine screw 20 to be fixedly connected with bonnet 10, valve rod 6 passes through valve stem nut 19, the top of valve rod 6 is provided with handwheel 21, the upper end of handwheel 21
It is provided between the second hex nut 23, the hex nut 23 of handwheel 21 and second and plain washer 22 is installed.Preferably, described hard
Matter sealing ring 2A is made of metal material；Preferably, soft seal circle 4A is made of PTFE, NYLON or elastomeric material；
Preferably, the hard sealing ring 2A is made of stainless steel or Hardmetal materials.
Embodiment two
Fig. 1 and Fig. 3, a kind of Double sealing globe valve, including flap 5 and valve body 1 are referred to, the sealing of flap 5 passes through sealing
Enclose pressure ring 2B and composite sealing ring 4B fitted seals.The sealing surface of the valve body 1 uses conical seal (contact) face A.
In groove inside the lower end of valve rod 6 insertion flap 5, and flap 5 is fastened with valve rod 6 by flap gland 7；The valve
The upper end of body 1 is fixedly connected by multiple studs 11 and multiple hex screws 12 with bonnet 10, the company of the valve body 1 and bonnet 10
The place of connecing is also equipped with gasket seal 9, and valve rod 6 is upper close through upper seal support 8 is provided between bonnet 10, and valve rod 6 and bonnet 10
It is filler 13 to seal the upper end of seat 8, and the upper end of filler 13 is provided with filler pressing sleeve 14, and the upper end of filler pressing sleeve 14 is connected to hold-down grid 15,
Hold-down grid 15 is connected by the cooperation and bonnet 10 of two bearing pins 16, two lifting bolts 17 and two the first hex nuts 18
Connect, the upper end of bonnet 10 is provided with valve stem nut 19, valve stem nut 19 is fixedly connected by holding screw 20 with bonnet 10, valve rod 6
Through valve stem nut 19, the top of valve rod 6 is provided with handwheel 21, and the upper end of handwheel 21 is provided with the second hex nut 23, handwheel 21 with
Plain washer 22 is installed between second hex nut 23.Preferably, the composite sealing ring 4B includes layer flexible graphite cake
24 and multilayer stainless steel plate 25, and flexible graphite plate 24 and stainless steel plate 25 be intervally arranged.
Operation principle of the present utility model is：The sealing of flap 5 can pass through two kinds of forms：First, sealed using soft or hard two-stage,
Hard sealing ring 2A is using metal materials such as stainless steel, hard alloy, and soft seal circle 4A is soft using PTFE, NYLON, rubber etc.
Material is used as sealing surface；2nd, directly passed through using the composite sealing ring 4B made by stainless steel plate 25 and flexible graphite plate 24
The combined use of soft and hard seal ensure that zero leakage of sealing surface, be particularly suitable for use in the stronger field of the permeability such as gas medium
Close, substantially increase conduit running security；Fast opening and closing can be achieved (opening and closing time is the 1/4 of gate valve)；The dual-seal is cut
Only valve is reasonable in design, and compact conformation is simple, and manufacturing process is simple, passes through the combined use of two kinds of sealing devices, it is ensured that sealing
Zero leakage in face, is particularly suitable for use in the stronger occasion of the permeability such as gas medium, substantially increases conduit running security；Should
Double sealing globe valve also has that good airproof performance, service life length, small volume, lightweight, material consumption be few, installation dimension is small
Advantage, can be achieved fast opening and closing, easy to use, improve operating efficiency.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
, can also be on the premise of this patent objective not be departed from formula, the knowledge that one skilled in the relevant art possesses
Various changes can be made.
Claims (2)
1. a kind of Double sealing globe valve, it is characterised in that including flap (5) and valve body (1), flap (5) sealing passes through hard
Sealing ring (2A) and soft seal circle (4A) fitted seal；The soft seal circle (4A) uses PTFE, NYLON or elastomeric material
It is made；Hard sealing ring (2A) is made of stainless steel or Hardmetal materials；The valve body (1) and hard sealing ring (2A)
Sealing surface uses conical seal (contact) face (26).
2. a kind of Double sealing globe valve according to claim 1, it is characterised in that valve rod (6) lower end insertion flap (5)
In internal groove, and flap (5) is fastened with valve rod (6) by flap gland (7)；Valve body (1) upper end passes through multiple spiral shells
Post (11) and multiple hex screws (12) are fixedly connected with bonnet (10), and the valve body (1) and the junction of bonnet (10) are also pacified
Equipped with gasket seal (9), valve rod (6) passes through and upper seal support (8) is provided between bonnet (10), and valve rod (6) and bonnet (10),
Upper seal support (8) upper end is filler (13), and filler (13) upper end is provided with filler pressing sleeve (14), the connection of filler pressing sleeve (14) upper end
To hold-down grid (15), hold-down grid (15) passes through two bearing pins (16), two lifting bolts (17) and two the first hexagonal spiral shells
The cooperation of female (18) is connected with bonnet (10), and bonnet (10) upper end is provided with valve stem nut (19), and valve stem nut (19) is by tight
Determine screw (20) to be fixedly connected with bonnet (10), valve rod (6) passes through and is provided with handwheel at the top of valve stem nut (19), valve rod (6)
(21), handwheel (21) upper end is provided with the second hex nut (23), is provided between handwheel (21) and the second hex nut (23)
Plain washer (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621141506.5U CN206419493U (en) | 2016-10-20 | 2016-10-20 | A kind of Double sealing globe valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621141506.5U CN206419493U (en) | 2016-10-20 | 2016-10-20 | A kind of Double sealing globe valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206419493U true CN206419493U (en) | 2017-08-18 |
Family
ID=59577563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621141506.5U Active CN206419493U (en) | 2016-10-20 | 2016-10-20 | A kind of Double sealing globe valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206419493U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243630A (en) * | 2018-10-19 | 2019-01-18 | 江苏神通阀门股份有限公司 | A kind of containment isolating valve ring structure |
| CN110274040A (en) * | 2019-07-09 | 2019-09-24 | 南通翔骜液压润滑设备有限公司 | Hydraulic hybrid accumulator shut-off valve |
| CN111059303A (en) * | 2019-12-28 | 2020-04-24 | 中船重工重庆液压机电有限公司 | Cone sealing structure and electromagnetic pilot control air valve |
| CN113309861A (en) * | 2021-06-09 | 2021-08-27 | 欧冠阀门科技有限公司 | Double-sealing piston type flow-regulating pressure-regulating valve |
| CN119373881A (en) * | 2024-12-31 | 2025-01-28 | 永隆阀门有限公司 | A soft and hard double sealing plug type stop valve |
-
2016
- 2016-10-20 CN CN201621141506.5U patent/CN206419493U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243630A (en) * | 2018-10-19 | 2019-01-18 | 江苏神通阀门股份有限公司 | A kind of containment isolating valve ring structure |
| CN109243630B (en) * | 2018-10-19 | 2024-05-10 | 江苏神通阀门股份有限公司 | Containment isolation valve sealing ring structure |
| CN110274040A (en) * | 2019-07-09 | 2019-09-24 | 南通翔骜液压润滑设备有限公司 | Hydraulic hybrid accumulator shut-off valve |
| CN111059303A (en) * | 2019-12-28 | 2020-04-24 | 中船重工重庆液压机电有限公司 | Cone sealing structure and electromagnetic pilot control air valve |
| CN113309861A (en) * | 2021-06-09 | 2021-08-27 | 欧冠阀门科技有限公司 | Double-sealing piston type flow-regulating pressure-regulating valve |
| CN119373881A (en) * | 2024-12-31 | 2025-01-28 | 永隆阀门有限公司 | A soft and hard double sealing plug type stop valve |
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