CN201166130Y - Lining fluorine anti-corrosive control valve - Google Patents
Lining fluorine anti-corrosive control valve Download PDFInfo
- Publication number
- CN201166130Y CN201166130Y CNU2008200118268U CN200820011826U CN201166130Y CN 201166130 Y CN201166130 Y CN 201166130Y CN U2008200118268 U CNU2008200118268 U CN U2008200118268U CN 200820011826 U CN200820011826 U CN 200820011826U CN 201166130 Y CN201166130 Y CN 201166130Y
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Abstract
A fluorine liner corrosion resistant control valve comprises a valve body, a valve cover, a valve core, a corrugated pipe, a valve base, a valve rod, a sealing stuff and an actuator, wherein the inner wall of the valve body is lined with fluorine plastic, the valve core, the corrugated pipe and the valve base are made from fluorine plastic, the valve core is provided with a metal connector at the connection with the valve rod for fitting the valve rod, the inner wall of the valve body is provided with a dovetail slot, the fluorine plastic liner is provided with a boss at the joint face with the inner wall of the valve body and at the part corresponding the dovetail slot on the inner wall of the valve body for fitting the dovetail slot, the boss is embedded in the dovetail slot, the valve cover is provided with a leakage check device, and the sealing stuff is PTFE sealing stuff. The fluorine liner corrosion resistant control valve has the advantages that the valve core and the valve rod are connected by the metal connector to prevent drop and disconnection between the valve rod and the valve core. The inner surface of the valve body is provided with a dovetail slot to effectively prevent the liner from dropping. The leakage check structure can alarm on time to process accident. The utility model adopts straight valve body flow channel to effectively prevent fluid from accumulation and blocking.
Description
Technical field
The utility model belongs to the control valve field in the instrument and meter for automation, relates in particular to the process control valve technology under the strong corrosive medium environment.
Background technique
Control valve is requisite in the automatic meter system, conventional control valve often is applied to occasion non-corrosive or that corrosion is not too serious, for the control occasion of deep-etching or multiple aggressive medium hybrid corrosion, the common metal control valve can't use, and needs to use corrosion resistant control valve.Lining fluorine anticorrosion control valve is exactly wherein a kind of.
Lining fluorine anticorrosion control valve and conventional control valve are structurally basic identical, mainly form by valve body, valve gap, trim (spool, valve seat, valve rod etc.), filler etc., by moving up and down of spool, change the relative position of spool, valve seat, thereby change the purpose that circulation area between spool, the valve seat reaches the control media flow.The main distinction of lining fluorine anticorrosion control valve and conventional control valve is that lining fluorine anticorrosion control valve is lined with fluoroplastic on valve interior wall, spool is formed with fluoroplastic and fluoroplastic bellows, the metallic material that makes the position of control valve contact medium not have exposure exists, all by fluoroplastic opposing dielectric corrosion.
Present existing lining fluorine anticorrosion control valve is to adopt valve rod and fluoroplastic to make the direct Placement of spool, this Placement is because valve rod is a metallic material, spool is fluoroplastic, so have the following disadvantages: 1, join strength is lower, in long-term work, can produce come off, problem such as dropout, normal use to give bring many inconvenience.2, liner directly serves as a contrast on valve body, and valve interior wall is more smooth, and liner comes off easily, causes the valve interior wall metal exposed by dielectric corrosion.3, do not have leakage detecting structure on the valve, when bellows bursts, be difficult to timely discovery, often will be corroded leak, could find, easily cause the accident at valve body.
Summary of the invention
The purpose of this utility model provides a kind of lining fluorine anticorrosion control valve, to overcome the deficiency of existing lining fluorine anticorrosion control valve.The technical solution of the utility model is: lining fluorine anticorrosion control valve, by valve body, valve gap, spool, bellows, valve seat, valve rod, stuffing box packing, actuator forms, valve interior wall is lined with fluoroplastic, spool, bellows and valve seat are made with fluoroplastic, it is characterized in that the described spool made from fluoroplastic is inherent is provided with metal and valve rod to the connector element that cooperates with the valve rod joint, be processed with dovetail groove on the inwall of described valve body, fluoroplastics lining have the boss that matches with dovetail groove with the corresponding position of dovetail groove with on the valve interior wall valve interior wall mating face, boss is embedded in the dovetail groove, described valve gap is provided with leakage detection apparatus, and described stuffing box packing is the PTFE stuffing box packing.
Lining fluorine anticorrosion control valve described in the utility model, its structure is the leakage detection apparatus that is provided with on described valve gap, constitute by the needle-valve, conduction hole and the pressure-detecting device that are arranged on the valve gap, conduction hole is one and runs through the aperture that valve gap communicates with the valve gap inner chamber, the input end of needle-valve is connected with conduction hole, and the output terminal of needle-valve is connected with pressure-detecting device.
Lining fluorine anticorrosion control valve described in the utility model, its structure is that in described spool the metal connector element that matches with valve rod with the valve rod joint is a slug that has ladder, and the slug center is processed with the screw with valve rod front end threads engaged.
Lining fluorine anticorrosion control valve described in the utility model, its structure are that the runner in described valve body is the straight type runner of segmentation.
Good effect of the present utility model is:
1, owing in spool, is provided with the metal construction that is connected with valve rod, make being connected to become being connected between the metalwork between valve rod and the spool, reliability when guaranteeing to connect, by reliable connection the between metal embedded part and the valve rod metal, solved be connected between metal valve stem and the fluoroplastic spool easily produce come off, the generation of problems such as dropout.
2, adopt the straight section valve flowing channel, can prevent effectively that fluid from gathering, stopping up, and issuable fluid has been gathered souring.
3, at the metal valve body internal surface dovetail groove is set, the fluoroplastic of liner are embedded in the dovetail groove, can prevent effectively that lining from coming off.
4, owing to be provided with leakage detection apparatus, leakage detection apparatus can in time detect and in time report to the police when bellows damages, thereby the timely handling failure of energy avoids accident to take place.
5, except adopting sylphon seal, the PTFE packing seal is set on valve gap also, seals more effective.
Description of drawings
The utility model has accompanying drawing 2 width of cloth, wherein:
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is the leakage detection apparatus structural representation.
In the accompanying drawing, 1, valve body 2, valve gap 3, valve seat 4, spool 5, pre-buried connector element 6, bellows 7, valve rod 8, lining 9, filler 10, Gland 11, nut 12, indication piece 13, leakage detection apparatus 14, conduction hole 15, pressure-detecting device connection mouth 16, needle-valve.
Embodiment
The utility model is described in further detail to meet embodiment with accompanying drawing below.
Lining fluorine anticorrosion control valve is made up of valve body 1, valve gap 2, leakage detection apparatus 13, spool 4, bellows 6, valve rod 7, filler 9, actuator etc.Actuator adopts pneumatic or electric actuator.The full lined with fluoroplastic material of valve interior wall, before implementing valve interior wall lined with fluoroplastic material, the diverse location place of elder generation on valve body 1 inwall, process some dovetail grooves, implement the operation of valve interior wall lined with fluoroplastic material then, the dovetail groove place is by the fluoroplastic filling like this, and strikes up partnership with fluoroplastics lining, make combine between fluoroplastics lining and the valve body more firm.Runner in the valve body adopts the straight length design of segmented, can prevent that fluid from gathering, stopping up, and can gather souring to issuable fluid again.Metal elements covered with gold leaf constitutes in the spool 4 usefulness fluoroplastic, during making, place a metal connector element 5 that can match in advance at spool 4 and valve rod 7 link positions with valve rod, then with the fluoroplastic moulding, in the process with the fluoroplastic moulding, spool 4 strikes up partnership the metal connector element 5 that presets.Valve rod adopted screw rod and is threaded with being connected of spool in the present embodiment, and the front end of valve rod is one section screw rod, and the metal connector element that is preset in the spool is the round platform of a band ladder, and the round platform center is processed with the tapped hole that matches with valve rod front end screw rod.When like this, valve rod is connected with spool.Actual be valve rod with spool in the metal round platform between be threaded, so just can prevent that valve rod directly is connected the problems such as becoming flexible, thread off, come off of generation with fluoroplastic.PTFE packing seal and leakage detection apparatus are set on the valve gap, leakage detection apparatus, constitute by the needle-valve, conduction hole and the pressure-detecting device that are arranged on the valve gap, conduction hole be one be opened on the valve gap and run through the aperture that valve gap communicates with the valve gap inner chamber, the input end of needle-valve is connected with conduction hole, and the output terminal of needle-valve is connected with pressure-detecting device.
During use, will serve as a contrast fluorine anticorrosion control valve connecting system, actuator produces power, promotes the upper and lower motion of valve rod, and valve rod drives valve core movement, changes the circulation area between spool and the valve seat, thereby changes the flow by the control valve medium.Actuator can adopt pneumatic mode, also can adopt electronic mode.Flow characteristics can change by changing different spools.Stop leakage in the roof device at lining fluorine anticorrosion control valve duration of work, be in monitoring state at any time, because the device of stopping leakage in the roof communicates with the valve gap inner chamber, when the valve proper functioning, promptly bellows does not produce and breaks in the valve, and the device of stopping leakage in the roof detection is less than the pressure of medium; When in the valve during bellows bursts, the valve medium can flow out by the conduction hole along valve rod from valve gap, and the device of stopping leakage in the roof will detect the pressure of medium, and send alarm signal by warning device, at this moment, can in time change bellows, to guarantee normally carrying out of process control.When the bellows bursts seal failure, the PTFE stuffing box packing can prevent that medium from leaking outside.
Claims (4)
1, lining fluorine anticorrosion control valve, by valve body (1), valve gap (2), spool (4), bellows (6), valve seat (3), valve rod (7), stuffing box packing (9), actuator forms, valve interior wall is lined with fluoroplastic, spool (4), bellows (6) and valve seat (3) are made with fluoroplastic, it is characterized in that the described spool made from fluoroplastic (4) inherence is provided with the metal connector element that matches with valve rod (5) with valve rod (7) joint, be processed with dovetail groove on the inwall of described valve body (1), fluoroplastics lining has the boss that matches with dovetail groove with the corresponding position of dovetail groove with on the valve interior wall on valve body (1) inwall mating face, boss is embedded in the dovetail groove, described valve gap (2) is provided with leakage detection apparatus (13), and described stuffing box packing (9) is the PTFE stuffing box packing.
2, lining fluorine anticorrosion control valve according to claim 1, it is characterized in that going up the leakage detection apparatus (13) that is provided with at described valve gap (2), constitute by the needle-valve (15), conduction hole (14) and the pressure-detecting device (16) that are arranged on the valve gap, conduction hole (14) is one and runs through the aperture that valve gap communicates with the valve gap inner chamber, the input end of needle-valve is connected with conduction hole, and the output terminal of needle-valve is connected with pressure-detecting device.
3, lining fluorine anticorrosion control valve according to claim 1, it is characterized in that in described spool (4) the metal connector element (5) that matches with valve rod with valve rod (7) joint is a slug that has ladder, the slug center is processed with the screw with valve rod front end threads engaged.
4, lining fluorine anticorrosion control valve according to claim 1 is characterized in that the runner in described valve body is the straight type runner of segmentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200118268U CN201166130Y (en) | 2008-03-28 | 2008-03-28 | Lining fluorine anti-corrosive control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200118268U CN201166130Y (en) | 2008-03-28 | 2008-03-28 | Lining fluorine anti-corrosive control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166130Y true CN201166130Y (en) | 2008-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200118268U Expired - Fee Related CN201166130Y (en) | 2008-03-28 | 2008-03-28 | Lining fluorine anti-corrosive control valve |
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| Country | Link |
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| CN (1) | CN201166130Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954283A (en) * | 2012-10-29 | 2013-03-06 | 浙江盾安阀门有限公司 | Corrugated tube welding assembly and production method thereof |
| CN103867882A (en) * | 2012-12-10 | 2014-06-18 | 苏州科迪流体控制设备有限公司 | Low-flow-resistance drain valve |
| CN104390021A (en) * | 2014-11-26 | 2015-03-04 | 浙江纽顿流体控制有限公司 | Wet chlorine special valve |
| CN104500831A (en) * | 2014-07-15 | 2015-04-08 | 沈永增 | Special strong-poison composite bellows valve |
| CN105134982A (en) * | 2015-08-25 | 2015-12-09 | 南京道隆橡塑科技有限公司 | Sterile corrugated diaphragm and sterile valve |
| CN105134969A (en) * | 2015-08-25 | 2015-12-09 | 南京道隆橡塑科技有限公司 | Sterile valve with liquid self-drain function |
| CN105156693A (en) * | 2015-10-08 | 2015-12-16 | 江苏神通阀门股份有限公司 | Nuclear safety needle valve |
| CN105443782A (en) * | 2015-12-25 | 2016-03-30 | 西安航天远征流体控制股份有限公司 | Corrugated tube stop valve |
| CN106151537A (en) * | 2016-08-31 | 2016-11-23 | 浙江智鹏自控阀门有限公司 | Fluorine-lined bellows regulating valve |
| CN107061857A (en) * | 2017-02-24 | 2017-08-18 | 江苏金晟元特种阀门股份有限公司 | Electronic Fluorine-lined bellows single-seat adjusting valve |
| CN108325955A (en) * | 2018-01-23 | 2018-07-27 | 上海森浩印染机械有限公司 | The dyeing machine pipe-line system of anti-dyestuff deposit buildup |
| CN112483656A (en) * | 2020-11-19 | 2021-03-12 | 苏州东山防腐仪表阀门有限公司 | High-performance plastic-lined single seat valve |
-
2008
- 2008-03-28 CN CNU2008200118268U patent/CN201166130Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954283A (en) * | 2012-10-29 | 2013-03-06 | 浙江盾安阀门有限公司 | Corrugated tube welding assembly and production method thereof |
| CN102954283B (en) * | 2012-10-29 | 2014-01-08 | 浙江盾安阀门有限公司 | Corrugated tube welding assembly and production method thereof |
| CN103867882A (en) * | 2012-12-10 | 2014-06-18 | 苏州科迪流体控制设备有限公司 | Low-flow-resistance drain valve |
| CN104500831A (en) * | 2014-07-15 | 2015-04-08 | 沈永增 | Special strong-poison composite bellows valve |
| CN104390021A (en) * | 2014-11-26 | 2015-03-04 | 浙江纽顿流体控制有限公司 | Wet chlorine special valve |
| CN104390021B (en) * | 2014-11-26 | 2018-03-16 | 纽顿流体科技有限公司 | Wet chlorine special service valve |
| CN105134969A (en) * | 2015-08-25 | 2015-12-09 | 南京道隆橡塑科技有限公司 | Sterile valve with liquid self-drain function |
| CN105134982A (en) * | 2015-08-25 | 2015-12-09 | 南京道隆橡塑科技有限公司 | Sterile corrugated diaphragm and sterile valve |
| CN105156693A (en) * | 2015-10-08 | 2015-12-16 | 江苏神通阀门股份有限公司 | Nuclear safety needle valve |
| CN105443782A (en) * | 2015-12-25 | 2016-03-30 | 西安航天远征流体控制股份有限公司 | Corrugated tube stop valve |
| CN106151537A (en) * | 2016-08-31 | 2016-11-23 | 浙江智鹏自控阀门有限公司 | Fluorine-lined bellows regulating valve |
| CN106151537B (en) * | 2016-08-31 | 2019-04-05 | 浙江智鹏自控阀门有限公司 | Fluorine-lined bellows regulating valve |
| CN107061857A (en) * | 2017-02-24 | 2017-08-18 | 江苏金晟元特种阀门股份有限公司 | Electronic Fluorine-lined bellows single-seat adjusting valve |
| CN108325955A (en) * | 2018-01-23 | 2018-07-27 | 上海森浩印染机械有限公司 | The dyeing machine pipe-line system of anti-dyestuff deposit buildup |
| CN112483656A (en) * | 2020-11-19 | 2021-03-12 | 苏州东山防腐仪表阀门有限公司 | High-performance plastic-lined single seat valve |
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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: 20081217 Termination date: 20140328 |