CN203098876U - Chlorine-gas stopping valve - Google Patents
Chlorine-gas stopping valve Download PDFInfo
- Publication number
- CN203098876U CN203098876U CN 201220638445 CN201220638445U CN203098876U CN 203098876 U CN203098876 U CN 203098876U CN 201220638445 CN201220638445 CN 201220638445 CN 201220638445 U CN201220638445 U CN 201220638445U CN 203098876 U CN203098876 U CN 203098876U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- valve body
- valve rod
- valve gap
- 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
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- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 title abstract 5
- 238000012856 packing Methods 0.000 claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims description 16
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 14
- 229910052801 chlorine Inorganic materials 0.000 claims description 14
- 239000000460 chlorine Substances 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 9
- 210000000664 rectum Anatomy 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides a chlorine-gas stopping valve, relating to a valve. The chlorine-gas stopping valve comprises a valve body, wherein an inlet channel and an outlet channel are arranged at the lower end of the valve body, and the upper end of the valve body is provided with a valve cover; a valve rod penetrates through the valve cover, the upper end of the valve rod is connected with a handwheel component and the lower end of the valve rod is connected with a valve flap component; a sealing packing and a pressing plate are arranged between the valve rod and the valve cover; the lower section of the valve rod is provided with a corrugated pipe, one end of the corrugated pipe is welded on the valve cover and the other end of the corrugated pipe is welded on the valve rod; and a valve flap is matched with a valve-opening sealing surface between the inlet channel and the outlet channel. The chlorine-gas stopping valve is characterized in that the valve cover adopts a short-type valve cover and the valve body adopts a long-neck design; the total height of the valve cover of the short-type valve cover is lower than the maximum outer diameter of the valve cover, and the vertical distance between the long-neck valve body (namely the upper plane of a middle flange of the valve body) and the highest point of an edge flange of the valve body is longer than the drift diameter of a flow channel by 1.5 times. The chlorine-gas stopping valve provided by the utility model has the advantages of self cleaning, long service life, higher integral safety and convenience in disassembly, maintenance and replacement.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of chlorine stop valve.
Background technique
The chlorine stop valve is the valve a kind of commonly used that is used to control and regulate deep-etching flowing mediums such as chlorine in the chemical industry.The structure of existing chlorine stop valve comprises: valve body, inlet passage and outlet passage in the lower end of valve body; Upper end at valve body is provided with valve gap; Valve rod runs through valve gap, and the upper end of valve rod connects the handwheel assembly, and the lower end connects the flap assembly; Between valve rod and valve gap, be provided with stuffing box packing and pressing plate; Hypomere at valve rod is established bellows, and an end of bellows is welded on the valve gap, and the other end is welded on the valve rod; Flap cooperates with sealing valve port face between inlet passage and the outlet passage.Described, the handwheel assembly comprises handwheel, Stem Mut, and Stem Mut is fixed on the valve gap by being threaded, and joins and be drilled with lock screw; Cooperate by polygonal between handwheel and the valve rod.The defective that this structure of handwheel assembly is brought is: threaded stem is exposed outside, and the sticking easily ash of threaded stem lubricant oil causes screw thread stuck; Polygonal between handwheel and the valve rod is connected, and causes the valve rod distortion under the situation of misoperation easily.The defective that described stuffing box packing and pressure plate structure bring is: when pressing plate tightens up, if the two ends discontinuity causes the pressing plate endoporus to scratch valve rod easily.Described valve gap adopts the long-neck segment design, and valve body adopts short type design, carries out the assembly welding of hypomere on the valve gap after bellows and the welding of valve gap lower end again.Owing to adopt the segmentation welding manner, make the valve gap overall security reduce; The valve gap of long-neck design covers on bellows in the valve gap fully, and the long-time back ripple tube outer surface that uses can be piled up dirt, is inconvenient to clear up dirt, has reduced the working life of bellows.Being connected of described flap and valve rod adopted non-dismountable or detachable but the non-dismountable structure of flap nut, and flap or flap nut damage, and valve can't use and keep in repair and scrap.
The model utility content
The purpose of this utility model is to provide a kind of automatically cleaning, long service life, and overall security is higher, dismantles, keeps in repair and change chlorine stop valve easily.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: the chlorine stop valve, and it comprises valve body, inlet passage and outlet passage in the lower end of valve body; Upper end at valve body is provided with valve gap; Valve rod runs through valve gap, and the upper end of valve rod connects the handwheel assembly, and the lower end connects the flap assembly; Between valve rod and valve gap, be provided with stuffing box packing and pressing plate; Hypomere at valve rod is established bellows, and an end of bellows is welded on the valve gap, and the other end is welded on the valve rod; Flap cooperates with sealing valve port face between inlet passage and the outlet passage; It is characterized in that: valve gap adopts short type valve gap, valve body adopts the long-neck design, the valve gap total height of described short type valve gap is lower than the valve gap maximum outside diameter, the long-neck valve body be in the valve body on the flange plan range valve body limit flange peak perpendicular distance surpass 1.5 times of runner latus rectum; Described handwheel assembly comprises dust cap, handwheel, Stem Mut, flange bracket and flat key; Handwheel is connected with Stem Mut by flat key; Dust cap is arranged on the handwheel top, and is connected with Stem Mut by screw thread; Flange bracket axially cooperates with Stem Mut, and flange bracket links to each other with valve gap by column; Described flap assembly comprises flap nut, flap and lock sheet, and the flap nut adopts the design of U type bayonet socket, link to each other with the T-shape head of valve stem end by bayonet socket, the flap nut by screw thread with state flap and link to each other, between flap nut and flap, be provided with lock sheet; Described lock sheet is provided with mounting hole and projection, and lock sheet is enclosed within the flap nut outside by mounting hole, and the collar extension of projection on the lock sheet and U type mounting groove cooperatively interacts; The seal f ace width of flap and valve port is 0.1mm～0.25mm.
In order to solve the problems of the technologies described above better, the further technological scheme that the utility model adopts is: between pressing plate and valve rod, stuffing box packing packing bushing is set, the bottom width of packing bushing is suitable with the stuffing box packing width.
In order to solve the problems of the technologies described above better, the further technological scheme that the utility model adopts is: respectively be provided with an alloy on the surface of contact of described flap and valve port, the alloy rigidity on the valve port is better than the alloy on the flap.
The utility model has the advantages that: 1, valve gap adopts short type valve gap, makes bellows be in open state, simultaneously because valve body adopts the long-neck design to make bellows have self-cleaning function, thereby has reduced the accumulation of dirt, has prolonged the working life of bellows.The integral type valve gap makes that the valve gap overall security is higher.2, the effective thread of valve rod seals close inside at the handwheel assembly fully, can prevent dust effectively, prevents corroding, and can effectively protect lubricant oil dustproof simultaneously.Handwheel is connected with Stem Mut by flat key, and flat key fracture during misoperation can prevent the valve rod distortion that causes.The combination of flange bracket and column has increased the Safety performance of valve body when pressure abnormity raises.When 3, pressing plate tightened up, stuffing box packing was stressed evenly, can not cause valve rod to scratch.4, the flap assembly can be dismantled fully with being connected of valve rod, and convenient for maintaining and replacing have improved working life of durable.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the utility model chlorine stop valve.
Fig. 2 is an A part structure for amplifying schematic representation among Fig. 1.
Fig. 3 is the structural representation of flap nut among Fig. 2.
Fig. 4 is the structural representation of lock sheet among Fig. 2.
Among the figure: 1, valve body, 2, inlet passage, 3, outlet passage, 4, valve gap, 5, valve rod, 6, stuffing box packing, 7, pressing plate, 8, flap, 9, handwheel, 10, bellows, 11, plastic bushing, 12, pressing plate, 13, T-shape head, 14, the flap nut, 15, alloy, 16, alloy, 17, sealing surface, 18, lock sheet, 19, mounting hole, 20, projection, 21, U type mounting groove, 22, dust cap, 23, Stem Mut, 24, flat key, 25, flange bracket, 26, column.
Embodiment
Describe particular content of the present utility model in detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the chlorine stop valve comprises: valve body 1, inlet passage 2 and outlet passage 3 in the lower end of valve body 1; Be provided with valve gap 4 in the upper end of valve body 1; Valve rod 5 runs through valve gap 4, and the upper end of valve rod 5 connects the handwheel assembly, and the lower end connects the flap assembly; Between valve rod 5 and valve gap 4, be provided with stuffing box packing 6 and pressing plate 7; Establish bellows 10 at the hypomere of valve rod 5, an end of bellows 10 is welded on the valve gap 4, and the other end is welded on the valve rod 5; Flap 8 cooperates with sealing valve port face 17 between inlet passage 2 and the outlet passage 3; It is characterized in that: valve gap 4 adopts short type valve gap, and valve body 1 adopts the long-neck design.The valve gap total height of described short type valve gap is lower than the valve gap maximum outside diameter, the long-neck valve body be in the valve body on the flange plan range valve body limit flange peak perpendicular distance surpass 1.5 times of runner latus rectum.Described handwheel assembly comprises dust cap 22, handwheel 9, Stem Mut 23, flange bracket 25 and flat key 24; Handwheel 9 is connected with Stem Mut 23 by flat key 24; Dust cap 22 is arranged on handwheel 9 tops, and is connected with Stem Mut 23 by screw thread; Flange bracket 25 axially cooperates with Stem Mut 23, and flange bracket 25 links to each other with valve gap 4 by column 26.Between pressing plate 12 and valve rod 5, stuffing box packing 6 plastic bushing 11 is set, the bottom width of plastic bushing 11 is suitable with stuffing box packing 6 width, and plastic bushing 11 also can adopt metallic material product.Described flap assembly comprises flap nut 14, flap 8 and lock sheet 18, flap nut 14 adopts the design of U type mounting groove, flap nut 14 links to each other with the T-shape head 13 of valve rod 5 ends by U type mounting groove 21, flap nut 13 by screw thread with state flap 8 and link to each other, between flap nut 14 and flap 8, be provided with lock sheet 18.Described lock sheet 18 is provided with mounting hole 19 and projection 20, lock sheet 18 is enclosed within flap nut 14 outsides by mounting hole 19, projection 20 on the lock sheet 18 cooperatively interacts with the collar extension of U type mounting groove 21, prevent 8 flap assemblies by U type mounting groove 21 side Bit Shifts, produce eccentric with 5 valve rods.Described flap 8 is provided with an alloy 15 with the surface of contact of valve port, and the surface of contact of described valve port and flap 8 is provided with an alloy 16, and the hardness of alloy 16 is better than alloy 15.Described flap 8 is 0.1mm～0.25mm with sealing surface 17 width of valve port.During use, the chlorine stop valve is installed in the pipeline, drives valve rods 5, flap 8 liftings by handwheel 9, thus the connection that realizes inlet passage 2 and outlet passage 3 with close.
Above-mentioned chlorine stop valve, bellows 10 is an open by design, simultaneously because valve body 1 adopts the long-neck design to make bellows 10 have self-cleaning function, thereby has reduced the accumulation of dirt, bellows 10 exposes outside the easy cleaning dirt during dismounting.The short type valve gap 4 of integral type makes that valve gap 4 overall security are higher.In the using process, plastic bushing 11 can prevent to occur friction between valve rod 5 and the valve gap 4, has prolonged the working life of valve rod 5, has increased sealing effect simultaneously.In installation process, between valve rod 5 lower ends and the flap 8 centralized positioning accurate, install very convenient.The flap assembly can be dismantled fully with being connected of valve rod 5, and convenient for maintaining and replacing have improved working life of durable.Because alloy 15 is set on flap 8, valve port is provided with alloy 16, and the hardness of alloy 16 is better than alloy 15, flap 8 and valve port can cut off the impurity on the sealing surface 17 when closed, prevent that impurity from piling up on sealing surface 17, good sealing effect prevents that leakage phenomenon from taking place.The design of handwheel assembly makes the effective thread of valve rod 5 seal close inside at the handwheel assembly fully, can prevent dust effectively, prevents corroding, and can effectively protect lubricant oil dustproof simultaneously.Handwheel 9 is connected with Stem Mut 23 by flat key 24, and flat key 24 fractures can prevent that the valve rod 5 that causes is out of shape because of misoperation during misoperation.The combination of flange bracket 25 and column 26 has increased the Safety performance of valve body 1 when pressure abnormity raises.
Claims (3)
1. chlorine stop valve, it comprises valve body, inlet passage and outlet passage in the lower end of valve body; Upper end at valve body is provided with valve gap; Valve rod runs through valve gap, and the upper end of valve rod connects the handwheel assembly, and the lower end connects the flap assembly; Between valve rod and valve gap, be provided with stuffing box packing and pressing plate; Hypomere at valve rod is established bellows, and an end of bellows is welded on the valve gap, and the other end is welded on the valve rod; Flap cooperates with sealing valve port face between inlet passage and the outlet passage; It is characterized in that: valve gap adopts short type valve gap, valve body adopts the long-neck design, the valve gap total height of described short type valve gap is lower than the valve gap maximum outside diameter, the long-neck valve body be in the valve body on the flange plan range valve body limit flange peak perpendicular distance surpass 1.5 times of runner latus rectum; Described handwheel assembly comprises dust cap, handwheel, Stem Mut, flange bracket and flat key; Handwheel is connected with Stem Mut by flat key; Dust cap is arranged on the handwheel top, and is connected with Stem Mut by screw thread; Flange bracket axially cooperates with Stem Mut, and flange bracket links to each other with valve gap by column; Described flap assembly comprises flap nut, flap and lock sheet, and the flap nut adopts the design of U type bayonet socket, link to each other with the T-shape head of valve stem end by bayonet socket, the flap nut by screw thread with state flap and link to each other, between flap nut and flap, be provided with lock sheet; Described lock sheet is provided with mounting hole and projection, and lock sheet is enclosed within the flap nut outside by mounting hole, and the collar extension of projection on the lock sheet and U type mounting groove cooperatively interacts; The seal f ace width of flap and valve port is 0.1mm～0.25mm.
2. according to the described chlorine stop valve of claim 1, it is characterized in that: between pressing plate and valve rod, stuffing box packing packing bushing is set, the bottom width of packing bushing is suitable with the stuffing box packing width.
3. according to the described chlorine stop valve of claim 1, it is characterized in that: respectively be provided with an alloy on the surface of contact of described flap and valve port, the alloy rigidity on the valve port is better than the alloy on the flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638445 CN203098876U (en) | 2012-11-28 | 2012-11-28 | Chlorine-gas stopping valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638445 CN203098876U (en) | 2012-11-28 | 2012-11-28 | Chlorine-gas stopping valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098876U true CN203098876U (en) | 2013-07-31 |
Family
ID=48850281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220638445 Expired - Fee Related CN203098876U (en) | 2012-11-28 | 2012-11-28 | Chlorine-gas stopping valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098876U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966744A (en) * | 2012-11-28 | 2013-03-13 | 江苏鼎晟阀门有限公司 | Chlorine stop valve |
| CN103925381A (en) * | 2014-04-29 | 2014-07-16 | 昆山维萨阀门有限公司 | Stop valve of corrugated pipe |
| CN104405902A (en) * | 2014-11-26 | 2015-03-11 | 浙江纽顿流体控制有限公司 | Valve special for chlorine |
| CN104455482A (en) * | 2014-11-26 | 2015-03-25 | 浙江纽顿流体控制有限公司 | Valve special for heat conductive oil |
| CN114165603A (en) * | 2021-02-24 | 2022-03-11 | 常德翔宇设备制造有限公司 | Special stop valve for oxygen |
-
2012
- 2012-11-28 CN CN 201220638445 patent/CN203098876U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966744A (en) * | 2012-11-28 | 2013-03-13 | 江苏鼎晟阀门有限公司 | Chlorine stop valve |
| CN103925381A (en) * | 2014-04-29 | 2014-07-16 | 昆山维萨阀门有限公司 | Stop valve of corrugated pipe |
| CN103925381B (en) * | 2014-04-29 | 2016-06-22 | 昆山维萨阀门有限公司 | Bellows stop valve |
| CN104405902A (en) * | 2014-11-26 | 2015-03-11 | 浙江纽顿流体控制有限公司 | Valve special for chlorine |
| CN104455482A (en) * | 2014-11-26 | 2015-03-25 | 浙江纽顿流体控制有限公司 | Valve special for heat conductive oil |
| CN114165603A (en) * | 2021-02-24 | 2022-03-11 | 常德翔宇设备制造有限公司 | Special stop valve for oxygen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20131128 |