CN2296429Y - Pressurized butterfly seal valve - Google Patents
Pressurized butterfly seal valve Download PDFInfo
- Publication number
- CN2296429Y CN2296429Y CN 97200510 CN97200510U CN2296429Y CN 2296429 Y CN2296429 Y CN 2296429Y CN 97200510 CN97200510 CN 97200510 CN 97200510 U CN97200510 U CN 97200510U CN 2296429 Y CN2296429 Y CN 2296429Y
- Authority
- CN
- China
- Prior art keywords
- pressurising
- sealing
- valve
- valve body
- valve plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 72
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000007789 gas Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Images
Abstract
The utility model discloses a pressurized butterfly sealing valve. A valve plate which is parallel with the shaft line of a rotating shaft is fixed on one side of the rotating shaft; a pressurized sealing element is arranged in the ring groove of the edge of the circumference of the valve plate, which is fixed through spring return mechanisms which are symmetrically arranged on the both sides of the ring groove and uniformly distributed along the circumference; on the closed position of the valve plate, the circumference of the inner wall of the valve body corresponding to the pressurized sealing element is provided with a convex sealing ring; a uniform gap is arranged between the sealing ring and the pressurized sealing element. When closed, the rotating shaft drivers the valve plate to the closed position to fill medium and pressurize toward the annular cavity of the pressurized sealing element, which causes the both side walls of the pressurized sealing element to overcome the stretch of the spring force; the surface of an outer ring is tight pressed on the sealing ring of the valve body. The utility model has the advantages of simple structure, reasonable structure and high operational reliability.
Description
The utility model relates to a kind of pressurized type butterfly type seal valve, belongs to stop valve, is applicable on the pipe arrangement of industry low-pressure fuel gas such as metallurgy, chemical industry, oil, poison gas to use.
Chinese patent CN95219352.3 discloses a kind of " pressurized type butterfly type water-sealing valve ", and mainly by valve body, valve plate, pressurising Sealing, water sealing (sealing water) pipe and rotating shaft constitute.Valve body is an overall structure, two valve plates that be arranged in parallel are installed in the rotating shaft, in the valve plate closed position, and a pressurising Sealing that has a ring chamber is housed on the inwall of every valve plate periphery corresponding section valve body, uniform gap is arranged between pressurising Sealing and the valve plate.To the pressurization of ring chamber topping up body, the pressurising Sealing compresses valve plate, and the Extract body forms negative pressure, and pressurising Sealing and valve plate are thrown off.When pressurising Sealing and valve plate compress, the common cavity that constitutes a sealing of two valve plates, pressurising Sealing and valve body is equipped with a water sealing (sealing water) pipe, water-filling in cavity on the valve body of cavity part, reach to seal to the water sealing (sealing water) pipe middle water level and be cut off the pressure altitude that medium needs, form water seal.This pressurized type butterfly type water-sealing valve, valve body is an overall structure, the rigidity height.Existing problem is: water seal makes structure complicated, and when valve body itself leaked, water seal was also simultaneously ineffective.The pressurising part is installed on the valve body, and when being in cut-off state, ring also is the sealing surface contraction deformation in the pressurising part, produces the folding crape, influences sealability.The pressurising part relies on its ring chamber and adds negative pressure and reset, and under the situation that bonding impurity is arranged, takes off not open with valve plate, can't proper functioning.
The purpose of this utility model provide a kind of simple in structure, structure rationally, pressurized type butterfly type seal valve that functional reliability is high.
The purpose of this utility model is to realize like this.
A kind of pressurized type butterfly type seal valve, have valve body, pressurising Sealing, valve plate, rotating shaft, pressurising pipe and positioning block, valve body is the cylindrical integral structure, two ends have flange, shaft axis is crossed valve diameter and is passed valve body, the pressurising Sealing has ring chamber, and its sealing surface is dual-side and the equidistant round table surface of rotating shaft gyration center.Valve plate is parallel to shaft axis and is mounted on the one side; The pressurising Sealing is installed in the annular groove of valve plate circle edge, fixes by being symmetricly set in the spring return mechanism that pressurising Sealing both sides are uniformly distributed along the circumference; In the valve plate closed position, the seal ring with a projection is arranged on the valve interior wall circumference of pressurising Sealing corresponding section has uniform gap between seal ring and the pressurising Sealing.
The pressurising pipe of the ring chamber of pressurising Sealing in being arranged at valve body linked to each other with the pressurising medium by the center hole of rotating shaft non-transmision end, and the pressurising medium can adopt nitrogen.With nitrogen is the pressurising medium, safer when valve is used as the delivery line of inflammable gas, and in addition, nitrogen is source of the gas commonly used in Metallurgical Factory, and is easy to use.
The pressurising Sealing is that polytetrafluoroethylene family macromolecule material is made, and by the spring return mechanism, the two side is in the contraction-like annular groove that is installed on the valve plate circle edge, makes the pressurising Sealing have better corrosion-resistant and aging quality resistance.
The valve plate both sides all are equipped with the backplate in order to protection spring return mechanism, prevent that the gas of being carried from causing damage to the spring return mechanism, and reduce the reliability of its work.
Corresponding to the set radially annular groove in seal ring middle part one detecting tube is installed on the valve body, on detecting tube, installs one and detect meter, can detect its airtight quality.
Valve body has a flushing line outward, and its arm evenly is provided with along circumference corresponding to the radially annular groove at valve seal ring middle part, is connected with valve body, can the sealing surface on pressurising Sealing and the valve body be cleaned, and removes the impurity of bonding on it.
The advantage that the utility model is compared with prior art had is: adopts a valve plate and removes water seal, and simple in structure, easy operating.The pressurising Sealing is installed on the valve plate, when valve ends, and outer shroud tensile buckling, rational in infrastructure, distortion is even, good seal performance.The pressurising Sealing is controlled it by the spring return mechanism and is resetted, and has improved the reliability of work.In addition, by adjusting the elastic force of spring return mechanism, the impacting force in the time of can be to gap between pressurising Sealing and the seal ring and sealing is adjusted, and has further improved functional reliability.
Introduce embodiment of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the utility model pressurized type butterfly type seal valve.
Fig. 2 is the right side view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 2.
As shown in Figure 1 and Figure 2, the utility model pressurized type butterfly type seal valve mainly is made of valve body 1, pressurising Sealing 2, valve plate 3, pressurising pipe 4, rotating shaft 5, flushing line 6, backplate 7, spring return mechanism 8, positioning block 9, detecting tube 10, axle sleeve 11 and gusset 12.Valve body 1 is the cylindrical integral structure, and two ends have flange 1c.Rotating shaft 5 axis are crossed valve body 1 diameter and are passed valve body 1.Valve plate 3 is parallel to rotating shaft 5 axis, is mounted on rotating shaft 5 one sides through being set in the axle sleeve 11 and the gusset 12 that are connected with it in the rotating shaft 5.The pressurising Sealing 2 that has ring chamber 2a is made by the polytetrafluoroethylene material, is installed in the annular groove 3a of valve plate 3 circle edge, fixes by being symmetricly set in 16 pairs of spring return mechanisms 8 of evenly arranging along circumference pressurising Sealing 2 both sides, and its two side 2b is contraction-like.The outer shroud 2c surface of pressurising Sealing 2 also is that sealing surface is dual-side and the equidistant round table surface of rotating shaft 5 gyration center.Spring return mechanism 8 is made of pull bar 8a, spring 8b and nut 8c as shown in Figure 3, the end of pull bar 8a has the right angle type head, be set in the groove that pressurising Sealing 2 outer shroud 2c two sides are provided with, the other end passes order by the bottom of annular groove 3b spring 8b and nut 8c is housed.Valve plate 1 both sides all are equipped with the backplate 7 in order to protection spring return mechanism 8.In valve plate 3 closed positions, and there is a middle part to have the seal ring 1a of the projection of warp-wise annular groove 1b on the pressurising Sealing 2 corresponding section valve bodies 1 inwall circumference, have uniform gap between seal ring 1a and the pressurising Sealing 2, be generally 2-3mm.The pressurising pipe 4 of the ring chamber 2a of pressurising Sealing 2 through being positioned at valve body linked to each other with the pressurising medium by the center hole 5a of rotating shaft 5 non-transmision ends, and the pressurising medium is a nitrogen.Radially annular groove 1b corresponding to seal ring 1a middle part on the valve body 1 is equipped with a detecting tube 10.Be responsible for 6b and 4 flushing lines that arm 6c forms by one by water intake 6a, ring-type outside the valve body 1, arm 6c is connected with valve body 1 along even setting of circumference corresponding to the radially annular groove 1b at valve body 1 seal ring 1a middle part.
Valve is installed on the delivery line through the flange 1c at valve body 1 two ends.When ending, the closed position that rotating shaft 5 drive valve plate 3 limit to positioning block 9, center hole 5a by rotating shaft 5 non-transmision ends pressurizes through pressurising pipe 4 inflated with nitrogen in the ring chamber 2a of pressurising Sealing 2, making two side 2b overcome spring force stretches, outer shroud 2c surface compresses the seal ring 1a on the valve body 1, enters sealing state.At this moment, on detecting tube 10, install one and detect meter, can detect it and whether leak.During unlatching, extract the nitrogen in the pressurising Sealing 2 ring chamber 2a out, make its pressure release, pressurising Sealing 2 resets under the resilient force of spring return mechanism 8, and throw off with seal ring 1a on outer shroud 2c surface, and valve plate 3 forwards conduction position to.
Service time is longer, and when pressurising Sealing 2 outer shroud 2c surface and its corresponding seal ring 1a were bonded with impurity, available flushing line 6 washed.Valve plate 3 is gone to closed position, current are entered by water intake 6a, be responsible for 6b is evenly entered valve body 1 seal ring 1a middle part by arm 6c radially annular groove 1b through ring-type, constantly pressurising in the ring chamber 2a of pressurising Sealing 2, pressure release, make water flow pressure be pulse type and change, the sealing surface of pressurising Sealing 2 and seal ring 1a is rinsed well.When need changing pressurising Sealing 2, the side plate 3b of the opposite side relative with rotating shaft 5 that unloads corresponding backplate 7 and annular groove 3a opens the joint 4a between pressurising Sealing 2 and the pressurising pipe, with its taking-up, changes new getting final product.Nut 8c on the rotating spring return mechanism 8 adjusts the elastic force of spring 8b, can be to the gap between pressurising Sealing 2 and the seal ring 1a and the impacting force when sealing adjust.
Equipped necessary monitoring, actuator and sequencing circuit can reach remotely-controlled operation automatically on the utility model pressurized type butterfly type seal valve.
Claims (6)
1. pressurized type butterfly type seal valve, have valve body, pressurising Sealing, valve plate, rotating shaft, pressurising pipe and positioning block, valve body is the cylindrical integral structure, two ends have flange, shaft axis is crossed valve diameter and is passed valve body, the pressurising Sealing has ring chamber, and its sealing surface is dual-side and the equidistant round table surface of rotating shaft gyration center, it is characterized in that: valve plate (3) is parallel to rotating shaft (5) axis and is mounted on the one side; Pressurising Sealing (2) is installed in the annular groove (3a) of valve plate (3) circle edge, and the spring return mechanism (8) that pressurising Sealing (2) both sides are uniformly distributed along the circumference is fixing by being symmetricly set in; In valve plate (3) closed position, the seal ring (1a) with a projection is arranged on pressurising Sealing (2) corresponding section valve body (1) the inwall circumference has uniform gap between seal ring (1a) and the pressurising Sealing (2).
2. seal valve according to claim 1, it is characterized in that: the pressurising pipe (4) of the ring chamber (2a) of described pressurising Sealing (2) in being arranged at valve body (1) linked to each other with the pressurising medium by the center hole (5a) of rotating shaft (5) non-transmision end, and the pressurising medium is a nitrogen.
3. seal valve according to claim 1, it is characterized in that: described pressurising Sealing (2) is made for polytetrafluoroethylene family macromolecule material, by spring return mechanism (8), two side (2b) is in the contraction-like annular groove (3a) that is installed on valve plate (3) circle edge.
4. seal valve according to claim 1 is characterized in that: described valve plate (3) both sides all are equipped with the backplate (7) in order to protection spring return mechanism (8).
5. seal valve according to claim 1 is characterized in that: described valve body (1) is gone up corresponding to the set radially annular groove (1b) in seal ring (1a) middle part a detecting tube (10) is installed.
6. seal valve according to claim 1, it is characterized in that: a flushing line (6) is arranged outside the described valve body (1), its arm (6c) evenly is provided with along circumference corresponding to the radially annular groove (1b) at valve body (1) seal ring (1a) middle part, is connected with valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97200510 CN2296429Y (en) | 1997-01-13 | 1997-01-13 | Pressurized butterfly seal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97200510 CN2296429Y (en) | 1997-01-13 | 1997-01-13 | Pressurized butterfly seal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2296429Y true CN2296429Y (en) | 1998-11-04 |
Family
ID=33922157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97200510 Expired - Fee Related CN2296429Y (en) | 1997-01-13 | 1997-01-13 | Pressurized butterfly seal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2296429Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022560A (en) * | 2010-12-24 | 2011-04-20 | 武汉策尔曼自动化设备有限公司 | Pressure-filled sealing valve |
-
1997
- 1997-01-13 CN CN 97200510 patent/CN2296429Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022560A (en) * | 2010-12-24 | 2011-04-20 | 武汉策尔曼自动化设备有限公司 | Pressure-filled sealing valve |
| CN102022560B (en) * | 2010-12-24 | 2013-02-13 | 武汉策尔曼自动化设备有限公司 | Pressure-filled sealing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BAOSHAN IRON & STEEL CO., LTD. Free format text: FORMER NAME OR ADDRESS: SHANGHAI BAOSHAN STEEL( GROUP ) CO.,LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201900, Fujin Road, Shanghai, Baoshan District orchard Patentee after: Baoshan Iron & Steel Co., Ltd. Address before: No. 1, Middle Road, Baoshan District, Shanghai Patentee before: Shanghai Baosteel (Group) Company |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |