CN2336155Y - Stop valve specially adapted for chloric acid - Google Patents
Stop valve specially adapted for chloric acid Download PDFInfo
- Publication number
- CN2336155Y CN2336155Y CN 98227098 CN98227098U CN2336155Y CN 2336155 Y CN2336155 Y CN 2336155Y CN 98227098 CN98227098 CN 98227098 CN 98227098 U CN98227098 U CN 98227098U CN 2336155 Y CN2336155 Y CN 2336155Y
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- chloric acid
- special stop
- stop valve
- 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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Abstract
The utility model relates to a chloric acid stopping valve for controlling medium flow on pipelines of liquid chlorine, chlorine and acid in chemical industry. The utility model comprises a valve flap, a valve seat, a valve cover assembly, a valve rod and a valve body. The utility model is characterized in that the end of the valve flap is in a circular arc shape, the periphery of the valve flap is provided with a platform, the circular arc surface and the platform of the valve flap and the valve seat form double sealing, the valve flap and the valve rod adopt thread floating connection, a positioning mechanism is arranged on a valve cover and the lower part in a body cavity of the valve body is provided with the valve seat. Because the valve flap in a circular arc shape, the platform and the valve seat form the double sealing, the utility model has the advantages of no adhesive abrasion of a sealing surface, corrosion resistance, good sealing performance and long service life.
Description
The utility model is a kind of chloric acid special stop valve that control media flows on chemical industry liquid chlorine, chlorine, the acid tube road that is used for.
Relevant by retrieval patent documentation is not found the valve identical with the utility model structure as yet.Advanced in the world at present chloric acid system valve is the stop valve that Japan produces, and structure is a universal cutoff valves, and its seal form has plane sealing, conical surface seal.Its seal form can not adapt to the usage requirement in chemical industry liquid chlorine, chlorine, acid tube road, particularly conical surface type sealing, and the valve closing imprecision causes leakage, and sealing surface is damaged.The valve that domestic chemical industry is used on liquid chlorine, chlorine, the soda acid pipeline also is the universal cutoff valves structure, seal form has two kinds of plane, the conical surfaces, it is same because sealing configuration does not reach usage requirement, make the valve closing imprecision, a period of time will be caused leakage, and sealing surface is damaged, and can not adapt to the requirement in the chemical pipeline continuous operation, be prone to accidents, cause economic loss.
The purpose of this utility model is to provide a kind of have novel sealing surface structure, good seal performance, corrosion-resistant, safe and reliable chloric acid special stop valve.
The utility model technical solution is: the chloric acid special stop valve, comprise flap, valve seat, valve gap assembly, valve rod, valve body, and it is characterized in that: the end of flap is in the arc-shaped, and its periphery has platform, and the arc surface of flap and platform and valve seat constitute double seal; Flap floats with valve rod employing screw thread and is connected; Valve gap is provided with positioning means, and valve seat is equipped with in the bottom in the valve body body cavity.Surface spraying weld at flap has anticorrosion alloy material or stainless steel to make.Be processed with the horse shoe shaped groove on the valve seat, pressure injection, sintering corrosion resistant elaxtic seal in groove.Flap and valve rod adopt the divided ring location, with flap lid scyewed joint, constitute floating connecting structure.On valve gap one side support, adjustable screw, nut are housed, constitute positioning means.Be processed with the horse shoe shaped groove below valve gap, pressure injection, sintering corrosion resistant elaxtic seal in groove constitute sealing seat.One locating slot is arranged at valve rod top, and the guiding valve rod drives flap and moves up and down.
Be installed in the chloric acid special stop valve on liquid chlorine, chlorine, the acid tube road, when opening/shutting valve, valve rod moves up and down in the valve body body cavity at the flap that drives the connection of floating under the guiding of positioning means, and having guaranteed does not have adhesive wear between sealing surface, reach sealing effect.When throttle down, surfacing has self-align being close to of flap of anticorrosion alloy material to annotate the sealing surface of seat that sintering has the corrosion resistant elaxtic seal on the sealing surface, at this moment produces resiliently deformable between sealing surface, makes sealing tight.When Open valve, after flap is fully opened, the boss conical surface front cover on the valve rod promptly with valve gap on upper seal support be close to mutually, constitute gap-free sealedly, can under the valve working state, increase or change filler.
The utility model has the advantages that structural design is new reasonable, be connected that flap and valve seat adopt self-align arc shaped surface and platform double sealing structure, make valve seal tight, and be safe and reliable because valve rod adopts to float with flap.Because flap, valve seat and upper seal support sealing material adopt anticorrosion alloy material and corrosion resistant elaxtic seal, corrosion resistant performance is good.Because the effect of positioning means, during valve opening and closing, sealing surface does not have adhesive wear, good seal performance, long service life, thus can satisfy the usage requirement of chemical industry chloric acid system pipeline equipment overhaul cycle, regulation international, relative national standards that every technical performance index reaches.
Below in conjunction with description of drawings the utility model embodiment:
Accompanying drawing is a chloric acid special stop valve structural representation.
Shown in accompanying drawing, pressure injection sintering elaxtic seal constitutes upper seal support 10 below valve gap 9.Pack the matching hole on top in from valve gap 9 support inboards Stem Mut 13 and adopt and be threaded with handwheel 14.Load onto the V-type fluoroplastic filler 16 of compression moulding in valve gap 9 filler chamber, the Gland 11 of packing into above filler 16 is pushed down filler 16, and is connected with valve gap 9 with swing bolt.On valve gap 9 one side supports, screw in positioning screwn 12, and fix with nut and valve gap 9 supports.Valve rod 7 screw threads one end is passed upper seal support 10, filler 16, Gland 11 be connected from the below of valve gap 9, adjust positioning screwn 12, reach the valve rod 7 no jam phenomenon that moves up and down with Stem Mut 13 trapezoidal threads.With flap lid 6 valve rod 7 of packing into, cover the floor clip 5 of packing in 6 tool withdrawal grooves at flap, in valve rod 7 grooves, load onto and split annulus 4, with flap 3 be sleeved on valve rod 7 ends split annulus 4 above, screw with flap lid 6, flap constitutes unsteady the connection with the flap lid, can avoid because foozle influences valve seal, and floor clip 5 is fixing with flap 3 flaps lid 6 respectively.Valve seat 2 is housed in the body cavity of valve body 1.Flange gasket 8 in placing on the middle flange recessed surfaces of valve body 1 adopts bolton to connect valve gap assembly and valve body.Load onto roundlet nut 15 at the Stem Mut top fastening with handwheel.
Claims (7)
1, a kind of chloric acid special stop valve comprises flap, valve seat, valve gap assembly, valve rod, valve body, and it is characterized in that: the end of flap is in the arc-shaped, and its periphery has platform, and the arc surface of flap and platform and valve seat constitute double seal; Flap floats with valve rod employing screw thread and is connected; Valve gap is provided with positioning means, and valve seat is equipped with in the bottom in the valve body body cavity.
2, chloric acid special stop valve according to claim 1 is characterized in that: the surface spraying weld at flap has the anticorrosion alloy material.
3, chloric acid special stop valve according to claim 1 is characterized in that: be processed with the horse shoe shaped groove on the valve seat, pressure injection sintering corrosion resistant elaxtic seal in groove.
4, chloric acid special stop valve according to claim 1 is characterized in that: flap and valve rod adopt the divided ring location, with flap lid scyewed joint, constitute floating connecting structure.
5, chloric acid special stop valve according to claim 1 is characterized in that: the positioning means that adjustable screw, nut formation are housed on valve gap one side support.
6, chloric acid special stop valve according to claim 1 is characterized in that: be processed with the horse shoe shaped groove below valve gap, the sealing seat that pressure injection sintering corrosion resistant elaxtic seal constitutes in groove.
7, according to the described chloric acid special stop valve of claim 1, it is characterized in that: valve rod top has a guiding valve rod to drive the locating slot that flap moves up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227098 CN2336155Y (en) | 1998-06-15 | 1998-06-15 | Stop valve specially adapted for chloric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227098 CN2336155Y (en) | 1998-06-15 | 1998-06-15 | Stop valve specially adapted for chloric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2336155Y true CN2336155Y (en) | 1999-09-01 |
Family
ID=33977485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98227098 Expired - Fee Related CN2336155Y (en) | 1998-06-15 | 1998-06-15 | Stop valve specially adapted for chloric acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2336155Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010081324A1 (en) * | 2008-12-30 | 2010-07-22 | 广东联塑科技实业有限公司 | Double seal valve structure |
| CN102853087A (en) * | 2012-07-25 | 2013-01-02 | 盐城市中液液压件有限公司 | Pressure balancing high-pressure stop valve |
| CN104070498A (en) * | 2014-06-18 | 2014-10-01 | 蒋杰 | Assembling and disassembling device for axial compression split collar |
| CN106286867A (en) * | 2016-08-26 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | A kind of spool for cylinder control valve |
| WO2018133225A1 (en) * | 2017-01-22 | 2018-07-26 | 江苏金晟元特种阀门股份有限公司 | Special chlorine valve |
-
1998
- 1998-06-15 CN CN 98227098 patent/CN2336155Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010081324A1 (en) * | 2008-12-30 | 2010-07-22 | 广东联塑科技实业有限公司 | Double seal valve structure |
| CN102853087A (en) * | 2012-07-25 | 2013-01-02 | 盐城市中液液压件有限公司 | Pressure balancing high-pressure stop valve |
| CN104070498A (en) * | 2014-06-18 | 2014-10-01 | 蒋杰 | Assembling and disassembling device for axial compression split collar |
| CN104070498B (en) * | 2014-06-18 | 2016-03-16 | 温州的可电器有限公司 | A kind of axial compression divided ring attaching/detaching apparatus |
| CN106286867A (en) * | 2016-08-26 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | A kind of spool for cylinder control valve |
| WO2018133225A1 (en) * | 2017-01-22 | 2018-07-26 | 江苏金晟元特种阀门股份有限公司 | Special chlorine valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |