CN205350391U - Bivalve pole over -and -under type chlorine is with, for ammonia corrugated tube stop valve - Google Patents
Bivalve pole over -and -under type chlorine is with, for ammonia corrugated tube stop valve Download PDFInfo
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- CN205350391U CN205350391U CN201521124219.9U CN201521124219U CN205350391U CN 205350391 U CN205350391 U CN 205350391U CN 201521124219 U CN201521124219 U CN 201521124219U CN 205350391 U CN205350391 U CN 205350391U
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- valve
- valve rod
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- gap
- corrugated tube
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Abstract
The utility model relates to the technical field of valves, in particular to bivalve pole over -and -under type chlorine is with, for ammonia corrugated tube stop valve, including the valve body, be provided with intake channel and exit channel at the lower extreme of valve body, the upper end of valve body be provided with with valve body bolted connection's valve gap, valve body and valve gap are inside to be provided with the mounting hole that has a perfect understanding each other, installs the lower valve rod in the valve body, installs with lower valve rod threaded connection in the valve gap and runs through the upper valve rod of valve gap, and the hand wheel is connected to the upper end of upper valve rod, and the valve clack is connected to the lower extreme of lower valve rod, is provided with the bellows on the lower valve rod, and the sealed face of valve port between valve clack and intake channel and the exit channel coordinates, is provided with the packing box between upper valve rod and valve gap, and the screw of upper valve rod is left -handed screw, the lower valve rod keyway has been seted up to the lower valve rod, set up the bellows keyway that matches with the lower valve rod keyway on the bellows, the lower valve rod splines through the key with the bellows and is connected. The utility model discloses a bivalve pole over -and -under type chlorine is with, for ammonia corrugated tube stop valve's structure cooperation is compact, sealed effectual.
Description
Technical field
This utility model relates to valve technology field, particularly relates to a kind of double stub shaft lift chlorine, ammonia bellows stop valve.
Background technology
Chlorine, ammonia stop valve are for controlling and regulate the conventional valve of one of the deep-etching flow medias such as chlorine ammonia in chemical industry.The structure of chlorine cutoff valve generally comprises valve body, at intake channel and the exit passageway of the lower end of valve body；The upper end of valve body is provided with valve gap；Valve rod runs through valve gap, and the upper end of valve rod connects hand wheel component, and lower end connects flap assembly；Airtight and watertight padding and pressing plate it is provided with between valve rod and valve gap；Hypomere at valve rod sets corrugated tube, and one end of corrugated tube is welded on valve gap, and the other end is welded on valve rod；Sealing valve port face between flap with intake channel and exit passageway coordinates；Existing bellows stop valve majority is rising stem type, and rising stem (RS.) bellows stop valve is all supporting structure with valve gap, and supporting structure may result in valve cap of valve insufficient strength, gives and relates to ammonia operating mode and bring potential safety hazard.
Utility model content
For solving the problems referred to above, the purpose of this utility model is to provide that a kind of respective outer side edges is compact, good sealing effect and the high double stub shaft lift chlorine of cut-off intensity, ammonia bellows stop valve.
Technical solution adopted in the utility model is:
A kind of double stub shaft lift chlorine is used, ammonia bellows stop valve, including valve body, is provided with intake channel and exit passageway in the lower end of valve body；Valve gap bolted with valve body it is provided with in the upper end of valve body；Valve body and valve gap are internally provided with the installing hole being mutually communicated, lower valve rod is installed in valve body, the upper valve rod threadeding and running through valve gap with lower valve rod is installed in valve gap, the upper end of upper valve rod connects hands wheel, the lower end of lower valve rod connects flap, lower valve rod is provided with corrugated tube, sealing valve port face between flap with intake channel and exit passageway coordinates, stuffing-box it is provided with between upper valve rod and valve gap, the screw thread of upper valve rod is left hand thread, described lower valve rod offers lower valve rod keyway, described corrugated tube offers the corrugated tube keyway mated with lower valve rod keyway, described lower valve rod is connected by key spline with corrugated tube.
Between described flap and sealing valve port face, sealing ring is installed.
The threaded connection place of described valve gap and valve body is provided with gasket seal.
Described sealing ring and gasket seal are PTFE.
The beneficial effects of the utility model are: adopt the structure that upper and lower threaded stem is connected, and during use, upper valve rod need only rotate, and are in half resting state, it is ensured that the sealing effectiveness of filler between upper valve rod and valve gap；
Upper and lower valve rod adopts left hand thread to connect, it is ensured that " right pass is opened on a left side " of valve；Lower valve rod adopts integrated spline key to connect with corrugated tube, namely ensures to adopt corrugated tube situation lower valve not rotate damage corrugated tube, ensures that the unlatching of valve is spacing.
Accompanying drawing explanation
The master that Fig. 1 is the embodiment one of this utility model double stub shaft lift chlorine use, ammonia bellows stop valve looks knot signal；
Fig. 2 is valve cover structure schematic diagram；
Fig. 3 is upper valve rod structural representation；
Fig. 4 is the left view structural representation of Fig. 3；
Fig. 5 is upper valve rod structural representation；
Fig. 6 is the main TV structure schematic diagram of corrugated tube；
Fig. 7 is the top view of Fig. 6.
In figure: 1, valve body, 2, flap, 3, corrugated tube, 4, lower valve rod, 5, upper valve rod, 6, valve gap, 7, handwheel, 8, stuffing-box, 31, corrugated tube keyway, 41, lower valve rod keyway.
Detailed description of the invention
This utility model double stub shaft lift chlorine is used, the embodiment one of ammonia bellows stop valve, as shown in Fig. 1 ~ 7, including valve body 1, intake channel and exit passageway it is provided with in the lower end of valve body 1, valve gap 6 bolted with valve body it is provided with in the upper end of valve body, valve body 1 and valve gap 6 bolt junction are provided with the gasket seal of annular, valve body 1 and valve gap 6 are internally provided with the installing hole that above-below direction is mutually communicated, cylindric lower valve rod 4 is installed in valve body 1, the upper valve rod 5 threadeding and running through valve gap 6 with lower valve rod 4 is installed in valve gap 6, upper valve rod 5 top Excircle machining has four spline planes, spline plane is connected to handwheel 7, utilizing handwheel 7 to rotate can drive upper valve rod 5 to rotate, the screw thread of upper valve rod 5 is left hand thread, valve " right pass is opened on a left side " is can ensure that during rotation hand wheel 7；The lower end of lower valve rod 4 connects flap 2, and the bottom of upper valve rod is provided with column female thread, and one end of lower valve rod 4 is provided with external screw thread, and column female thread is threadeded with the male end of lower valve rod 4；The other end processing of lower valve rod 4 has the annular recess coordinating locking to be connected with flap 2, lower valve rod 4 and flap 2 locking to connect, and flap 2 coordinates with the sealing valve port face between intake channel and exit passageway.Being provided with corrugated tube on lower valve rod, lower valve rod offers lower valve rod keyway, and corrugated tube offers the corrugated tube keyway mated with lower valve rod keyway, and lower valve rod is connected by key spline with corrugated tube.
Being provided with stuffing-box 8, the interior PTFE filler adopting vacuum-sintering of stuffing-box 8 between upper valve rod 5 and valve gap 6, filler is designed to upper and lower arc top formula, and faying face is big, when, after pretension silk pressing, compensating up and down uniformly, it is ensured that the sealing of valve gap 6 and upper valve rod 5.
Between described flap and sealing valve port face, sealing ring is installed.
When applying this stop valve, rotating handwheel, upper valve rod rotates, and is in half quiet state, utilizes the threaded of upper and lower valve rod to make lower valve rod move down, and drives flap to move and seal the sealing surface between intake channel and exit passageway.
The foregoing is only preferred embodiment of the present utility model; not limit practical range of the present utility model, all those skilled in the art with this, use principle and the technical characteristic of the present invention; the various changes made and decoration, all should be covered by within the protection category that present claims book defines.
Claims (4)
1. double stub shaft lift chlorine, an ammonia bellows stop valve, including valve body, is provided with intake channel and exit passageway in the lower end of valve body；Valve gap bolted with valve body it is provided with in the upper end of valve body；Valve body and valve gap are internally provided with the installing hole being mutually communicated, it is characterized in that: lower valve rod is installed in valve body, the upper valve rod threadeding and running through valve gap with lower valve rod is installed in valve gap, the upper end of upper valve rod connects hands wheel, the lower end of lower valve rod connects flap, lower valve rod is provided with corrugated tube, sealing valve port face between flap with intake channel and exit passageway coordinates, stuffing-box it is provided with between upper valve rod and valve gap, the screw thread of upper valve rod is left hand thread, described lower valve rod offers lower valve rod keyway, described corrugated tube offers the corrugated tube keyway mated with lower valve rod keyway, described lower valve rod is connected by key spline with corrugated tube.
2. double stub shaft lift chlorine according to claim 1, ammonia bellows stop valve, it is characterised in that: between described flap and sealing valve port face, sealing ring is installed.
3. double stub shaft lift chlorine according to claim 1, ammonia bellows stop valve, it is characterised in that: the threaded connection place of described valve gap and valve body is provided with gasket seal.
4. double stub shaft lift chlorine according to claim 1, ammonia bellows stop valve, it is characterised in that: described sealing ring and gasket seal are PTFE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521124219.9U CN205350391U (en) | 2015-12-31 | 2015-12-31 | Bivalve pole over -and -under type chlorine is with, for ammonia corrugated tube stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521124219.9U CN205350391U (en) | 2015-12-31 | 2015-12-31 | Bivalve pole over -and -under type chlorine is with, for ammonia corrugated tube stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350391U true CN205350391U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521124219.9U Active CN205350391U (en) | 2015-12-31 | 2015-12-31 | Bivalve pole over -and -under type chlorine is with, for ammonia corrugated tube stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205350391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575586A (en) * | 2017-09-21 | 2018-01-12 | 安徽荣达阀门有限公司 | One kind rotatably compresses valve |
| WO2019019480A1 (en) * | 2017-07-28 | 2019-01-31 | 广船国际有限公司 | Hydraulic control pipe penetrating part of remote control valve |
-
2015
- 2015-12-31 CN CN201521124219.9U patent/CN205350391U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019019480A1 (en) * | 2017-07-28 | 2019-01-31 | 广船国际有限公司 | Hydraulic control pipe penetrating part of remote control valve |
| CN107575586A (en) * | 2017-09-21 | 2018-01-12 | 安徽荣达阀门有限公司 | One kind rotatably compresses valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |