CN203880212U - Corrugated pipe gate valve - Google Patents
Corrugated pipe gate valve Download PDFInfo
- Publication number
- CN203880212U CN203880212U CN201420281666.4U CN201420281666U CN203880212U CN 203880212 U CN203880212 U CN 203880212U CN 201420281666 U CN201420281666 U CN 201420281666U CN 203880212 U CN203880212 U CN 203880212U
- Authority
- CN
- China
- Prior art keywords
- valve
- flange
- bellows
- sleeve pipe
- valve body
- 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 - Lifetime
Links
- 239000000945 filler Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 19
- 230000007704 transition Effects 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 238000003754 machining Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical class [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model discloses a corrugated pipe gate valve which comprises a valve body, a valve deck, a corrugated pipe sleeve, a corrugated pipe penetrating through the corrugated pipe sleeve and a valve rod penetrating through the corrugated pipe. The valve deck is provided with a stuffing box around the valve rod. The stuffing box is filled with filler. A gate plate is connected into the valve body through a valve seat. The upper end of the valve rod penetrates through the valve deck and is connected with a hand wheel. The lower end of the valve rod is provided with a T-shaped connector. The gate plate is provided with a T-shaped groove. The T-shaped connector is arranged in the T-shaped groove and is in clearance fit with the T-shaped groove. The valve deck is provided with a valve deck flange, and the valve deck and the valve deck flange are integrated. The valve body is provided with a valve body flange, and the valve body and the valve body flange are integrated. The upper end of the corrugated pipe sleeve is provided with an upper flange which is fixedly connected with the valve deck flange in a sealed mode. The lower end of the corrugated pipe sleeve is provided with a lower flange which is fixedly connected with the valve body flange in a sealed mode. According to the corrugated pipe gate valve, the three-section connection structure of the valve deck, the corrugated pipe sleeve and the valve body is adopted, so that the machining difficulty and casting difficulty are remarkably lowered.
Description
Technical field
The utility model relates to a kind of gate valve, and particularly a kind of bellows gate valve, belongs to valve technology field.
Background technique
Gate valve is widely used in the every field such as oil, chemical industry, iron and steel, metallurgy and electric power, and with respect to the valve of other control valve track media circulations, it is little that gate valve has circulating resistance, opens and closes moment of torsion little, and temperature limit is large, seals the advantages such as reliable.But, between tradition gate valve rod and valve gap, use packing seal, by filler pressing sleeve, gland flange and bolt maintain the impacting force of filler face, but in valve switch course of action, thereby valve rod lifting meeting causes the specific pressure reduction of filler face and valve stem seal face cause sealing failure of fillers and leak.This leakage for special media as poisonous medium, the chemical product fluids such as various soda acids, flammable and explosive fluid, heat conduction wet goods will cause as environmental pollution, fire, the great harm such as personal safety.
In prior art, there is a kind of bellows gate valve, comprise valve body, valve gap, valve rod, bellows and bellows sleeve pipe, bellows sleeve pipe upper end and valve gap welding, lower end and valve body welding, but merely rely on, to be welded to connect its mechanical connection intensity often inadequate, along with the corrosion of environment, weld often occurs that crack causes sealability greatly to reduce.
In prior art, also has a kind of bellows gate valve, bellows sleeve pipe and valve gap integrally casting form, the lower end of bellows sleeve pipe is directly connected with valve body by flange, although solved the problem of join strength, but bellows sleeve pipe is longer under normal circumstances, integrally casting bellows sleeve pipe and valve gap must cause processing, casting inconvenience.
Model utility content
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of bellows gate valve is provided, and solves the technical problem that in prior art, bellows gate valve sealing effect is poor, processing casting is inconvenient.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of bellows gate valve, comprise valve body, valve gap, bellows sleeve pipe, run through the bellows of ripple pipe-in-pipe and run through the valve rod of bellows, on described valve gap, be provided with stuffing box around valve rod, in stuffing box, be filled with filler, in described valve body, be connected with flashboard by valve seat, the upper end of described valve rod is run through valve gap and is connected with handwheel, the lower end of described valve rod is provided with T-shaped connecting head, described flashboard is provided with T-shaped groove, T-shaped connecting head is placed in T-shaped groove, and arranges with T-shaped groove Spielpassung; Described valve gap is provided with the bonnet flange being wholely set with valve gap, and described valve body is provided with the valve flange being wholely set with valve body; The upper end of described bellows sleeve pipe is provided with the upper flange with described bonnet flange fixed seal connection, and the lower end of bellows sleeve pipe is provided with the lower flange with described valve flange fixed seal connection.
Between described upper flange and bellows sleeve pipe, be threaded connection, and the joint of upper flange and bellows sleeve pipe is provided with seal weld adapter ring one.
Between described lower flange and bellows sleeve pipe, be also threaded connection, the joint of lower flange and bellows sleeve pipe is provided with seal weld adapter ring two.
On the upper-end surface of described upper flange, offer annular seal groove one, corresponding with annular seal groove one annular boss one that offers in described bonnet flange; The upper end of described bellows is by upper welding transition part and the support pad welding of being located in annular seal groove one, and the lower end of bellows is by lower welding transition part and the shaft shoulder welding being arranged on valve rod, the described shaft shoulder and valve-stem integrated setting.
On the upper work working surface of described support pad and lower working surface, offer respectively annular seal groove two, in annular seal groove two, be provided with seal ring two.
Described seal ring two is stainless steel graphite wound gasket sheet.
The interface of described valve flange and lower flange is provided with two-stage ring-shaped step, and described lower flange is provided with the two-stage annular boss matching with described two-stage ring-shaped step, between two-stage annular boss and two-stage ring-shaped step, is provided with seal ring three.
Compared with prior art, the beneficial effect that the utility model reaches is: 1, adopt valve gap, bellows sleeve pipe, valve body 3 stops linkage structure, and between valve gap and bellows sleeve pipe, valve body and bellows sleeve pipe, all adopt flanged connecting structure, when ensureing reliable connection, greatly reduce processing, casting difficulty; 2, between upper flange and bellows sleeve pipe, be threaded connection respectively and be provided with seal weld adapter ring between lower flange and bellows sleeve pipe, significantly improved the sealing effect of bellows gate valve; 3, the upper end of bellows is provided with welding transition part, and lower end is provided with lower welding transition part, has solved between thin walled tube and heavy wall workpiece and has welded the technical problem that difficulty is large, adopts general T IG welding to meet the demands, and has greatly reduced welding difficulty; 4, between upper flange and bonnet flange, be provided with support pad, the working surface up and down of support pad is provided with seal ring two, on existing gland sealed basis, has increased the static seal between bellows and valve gap, further strengthens the sealability of bellows gate valve; 5, valve flange and the Placement that lower flange adopts two-stage ring-shaped step and two-stage annular boss to dock, makes joint form fissure of displacement docking structure, and is provided with seal ring three, effectively avoids flowing medium to reveal.The utility model is applicable on the conveyance conduit of the chemical product fluids such as various flammable and explosive fluids, poisonous medium, soda acid.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A place structure enlarged view in Fig. 1.
Fig. 3 is B place structure enlarged view in Fig. 1.
In figure: 1, valve body; 1a, valve flange; 2, valve gap; 2a, bonnet flange; 3, bellows; 3a, upper welding transition part; 3b, lower welding transition part; 4, bellows sleeve pipe; 5, valve rod; 5a, T-shaped connecting head; 5b, the shaft shoulder; 6, flashboard; 7, handwheel; 8, valve seat; 9, upper flange; 10, lower flange; 11, support pad; 12, seal weld adapter ring one; 13, seal weld adapter ring two; 14, seal ring two; 15, seal ring three.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1 to Figure 3, a kind of bellows 3 gate valves, comprise valve body 1, valve gap 2, bellows sleeve pipe 4, run through the bellows 3 of ripple pipe-in-pipe 4 and run through the valve rod 5 of bellows 3, on valve gap 2, be provided with stuffing box around valve rod 5, in stuffing box, be filled with filler, in valve body 1, be connected with flashboard 6 by valve seat 8, the upper end of valve rod 5 is run through valve gap 2 and is connected with handwheel 7, the lower end of valve rod 5 is provided with T-shaped connecting head 5A, flashboard 6 is provided with T-shaped groove, T-shaped connecting head 5A is placed in T-shaped groove, and arranges with T-shaped groove Spielpassung.
Valve gap 2 is provided with the bonnet flange 2a being wholely set with valve gap 2, and bonnet flange 2a and upper flange 9 are bolted to connection.Upper flange 9 is located at the upper end of bellows sleeve pipe 4, be threaded connection, and upper flange 9 is provided with seal weld adapter ring 1 with the joint of bellows sleeve pipe 4 between upper flange 9 and bellows sleeve pipe 4.On the upper-end surface of upper flange 9, offer annular seal groove one, upper corresponding with annular seal groove one annular boss one that offers of bonnet flange 2a.In annular seal groove one, be provided with support pad 11, weld by upper welding transition part 3a and support pad 11 upper end of bellows 3, on the upper work working surface of support pad 11 and lower working surface, offer respectively annular seal groove two, in annular seal groove two, be provided with seal ring 2 14, seal ring 2 14 is stainless steel graphite wound gasket sheet.The lower end of bellows 3 is by lower welding transition part 3b and the shaft shoulder 5b welding being arranged on valve rod 5, and shaft shoulder 5b and valve rod 5 are wholely set.
Valve body 1 is provided with the valve flange 1a being wholely set with valve body 1, valve flange 1a and lower flange 10 are also bolted to connection, the interface of valve flange 1a and lower flange 10 is provided with two-stage ring-shaped step, lower flange 10 is provided with the two-stage annular boss matching with two-stage ring-shaped step, between two-stage annular boss and two-stage ring-shaped step, is provided with seal ring 3 15.Two-stage ring-shaped step and two-stage annular boss connect and form fissure of displacement docking structure, and are provided with seal ring 3 15, have significantly improved the sealability between valve body 1 and lower flange 10.Lower flange 10 is located at the lower end of bellows sleeve pipe 4, between lower flange 10 and bellows sleeve pipe 4, is also threaded connection, and lower flange 10 is provided with seal weld adapter ring 2 13 with the joint of bellows sleeve pipe 4.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and distortion, these improvement and distortion also should be considered as protection domain of the present utility model.
Claims (7)
1. a bellows gate valve, comprise valve body, valve gap, bellows sleeve pipe, run through the bellows of ripple pipe-in-pipe and run through the valve rod of bellows, on described valve gap, be provided with stuffing box around valve rod, in stuffing box, be filled with filler, in described valve body, be connected with flashboard by valve seat, the upper end of described valve rod is run through valve gap and is connected with handwheel, it is characterized in that, the lower end of described valve rod is provided with T-shaped connecting head, described flashboard is provided with T-shaped groove, T-shaped connecting head is placed in T-shaped groove, and arranges with T-shaped groove Spielpassung; Described valve gap is provided with the bonnet flange being wholely set with valve gap, and described valve body is provided with the valve flange being wholely set with valve body; The upper end of described bellows sleeve pipe is provided with the upper flange with described bonnet flange fixed seal connection, and the lower end of bellows sleeve pipe is provided with the lower flange with described valve flange fixed seal connection.
2. bellows gate valve according to claim 1, is characterized in that, be threaded connection, and the joint of upper flange and bellows sleeve pipe is provided with seal weld adapter ring one between described upper flange and bellows sleeve pipe.
3. bellows gate valve according to claim 2, is characterized in that, between described lower flange and bellows sleeve pipe, is also threaded connection, and the joint of lower flange and bellows sleeve pipe is provided with seal weld adapter ring two.
4. bellows gate valve according to claim 3, is characterized in that, offers annular seal groove one on the upper-end surface of described upper flange, corresponding with annular seal groove one annular boss one that offers in described bonnet flange; The upper end of described bellows is by upper welding transition part and the support pad welding of being located in annular seal groove one, and the lower end of bellows is by lower welding transition part and the shaft shoulder welding being arranged on valve rod, the described shaft shoulder and valve-stem integrated setting.
5. bellows gate valve according to claim 4, is characterized in that, on the upper working surface of described support pad and lower working surface, offers respectively annular seal groove two, is provided with seal ring two in annular seal groove two.
6. bellows gate valve according to claim 5, is characterized in that, described seal ring two is stainless steel graphite wound gasket sheet.
7. bellows gate valve according to claim 1, it is characterized in that, the interface of described valve flange and lower flange is provided with two-stage ring-shaped step, described lower flange is provided with the two-stage annular boss matching with described two-stage ring-shaped step, between two-stage annular boss and two-stage ring-shaped step, is provided with seal ring three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281666.4U CN203880212U (en) | 2014-05-29 | 2014-05-29 | Corrugated pipe gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281666.4U CN203880212U (en) | 2014-05-29 | 2014-05-29 | Corrugated pipe gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880212U true CN203880212U (en) | 2014-10-15 |
Family
ID=51680707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420281666.4U Expired - Lifetime CN203880212U (en) | 2014-05-29 | 2014-05-29 | Corrugated pipe gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203880212U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968147A (en) * | 2014-05-29 | 2014-08-06 | 昆山维萨阀门有限公司 | Corrugated pipe brake valve |
| EP3654353A1 (en) * | 2018-11-14 | 2020-05-20 | Robert Bosch GmbH | Electromagnetically actuated hydraulic installed valve |
-
2014
- 2014-05-29 CN CN201420281666.4U patent/CN203880212U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968147A (en) * | 2014-05-29 | 2014-08-06 | 昆山维萨阀门有限公司 | Corrugated pipe brake valve |
| EP3654353A1 (en) * | 2018-11-14 | 2020-05-20 | Robert Bosch GmbH | Electromagnetically actuated hydraulic installed valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215324 No. 18 Jinxi Road, Jinxi Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: KUNSHAN VIZA VALVE Co.,Ltd. Address before: 215324 No. 18 Jinxi Road, Jinxi Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: KUNSHAN WEISA VALVE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |