CN102032355A - Zero-leakage tapered sealing wet chlorine special valve - Google Patents
Zero-leakage tapered sealing wet chlorine special valve Download PDFInfo
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- CN102032355A CN102032355A CN2010105871513A CN201010587151A CN102032355A CN 102032355 A CN102032355 A CN 102032355A CN 2010105871513 A CN2010105871513 A CN 2010105871513A CN 201010587151 A CN201010587151 A CN 201010587151A CN 102032355 A CN102032355 A CN 102032355A
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- wet chlorine
- flap
- surface seal
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Abstract
Aiming at the defects of the prior art, the invention discloses a zero-leakage tapered sealing wet chlorine special valve which comprises a valve body, a valve cover, a valve clack and a valve rod which are all coated with a corrosion resistant material, wherein the end part of the valve clack is provided with a 60-80 degree tapered face, a tapered sealing surface matched with the tapered face at the end part of the valve clack is arranged in the inner cavity of the valve body so that tapered sealing is formed between the valve clack and the valve body, and an upper sealing structure consisting of a spherical boss is arranged on the plane of one side of the valve clack close to valve cover. The zero-leakage tapered sealing wet chlorine special valve has the advantages of meeting long-term transmission requirement of wet chlorine and other strong-corrosion media, and hardly damaging the sealing surface under special conditions, for example, the medium contains granular impurities; and thus, the zero-leakage tapered sealing wet chlorine special valve is safer and more reliable to use.
Description
Technical field
The present invention relates to a kind of valve that deep-etching material such as wet chlorine is carried, particularly a kind of special valve that can prevent dielectric leakage, contain the conical surface seal structure of being used for.
Background technique
At present, known common valve is made up of critical pieces such as valve body, valve gap, flap, valve rod, nuts, and each component materials is generally not corrosion-resistant.This type of common valve, in case when being used to carry deep-etching, poisonous medium such as chlor-alkali, leak with the as easy as rolling off a log corrosion of medium contact segment, thus harm surrounding enviroment and personal safety.
In recent years, the specific (special) requirements of carrying according to poisonous, easy leaking medium at some defectives that existing valve uses, has been announced much the technological scheme about the valve special for chlorine that prevents chlorine leakage now in the technology.Wherein, Suzhong Chemical Valve Factroy, Nantong City has applied for " chlor-alkali fluoroplastic all-liner stop valve " (number of patent application is 98223898.3) by name on April 30th, 1998, its technological scheme mainly is: a kind of chlor-alkali that is used on chlor-alkali pipeline fluoroplastic all-liner stop valve, comprise: valve body, valve gap, the flap assembly, drive link, handwheel, flange facing in valve body, perfluoroethylene-propylene is covered in soaking on two ends flange facing and the body cavity surface, and be linked to be integral body, constitute full lining, full lining is sintered to one with matrix (metal body), and drive link and flap are made as split type.When opening/shutting valve, the drive link rotation drives flap and moves up and down, and having guaranteed does not have adhesive wear between sealing surface, guarantee tight seal, do not leak, and anti-deep-etching, safe and reliable, the life-span is long.But this technological scheme because it still adopts plane sealing structure, contains in fed sheet of a media and more easily damages sealing by pressure under the special operation condition such as granule foreign and close in actual applications, causes seal failure and leaks.
In addition, at occurring wearing clearance easily between valve rod that has regulating valve special for chlorine now and the valve gap, cause chlorine leakage, can't online this problem of replacing filler, " novel regulating valve special for chlorine " patent of invention (patent No. is 200920313033.6) that magnificent valve industry Co., Ltd filed an application and patents and authorize on July 21st, 2010 on October 22nd, 2009 is converged in Zibo, it discloses a kind of novel regulating valve special for chlorine, comprise valve body, valve gap, flap and valve rod, be provided with packing seal mechanism between valve rod and the valve gap, be with lips cartilage frame seal ring on the valve rod of described packing seal mechanism below, its cross section roughly is down " V " shape, its inboard is respectively equipped with inward flange up and down, the relevant position of described valve gap is provided with corresponding annular groove, is used to hold lips cartilage frame seal ring.This technological scheme has simple in structure, good seal performance, closes little, the advantage of easy to leak not of torsion, but it adopts also is plane sealing structure, in case work condition abnormality still might damage sealing surface by pressure and causes seal failure.In addition, existing wet chlorine valve seldom has the sealing of going up, and is difficult to effectively prevent medium to gland leakage on the one hand, and increase or replacing filler bring very big inconvenience on the other hand.
Summary of the invention
Adopt plane sealing structure fragile and the deficiency of leaking takes place in order to overcome existing wet chlorine valve in the special operation condition lower sealing surface, the invention provides a kind of nothing and leak the wet chlorine special valve of conical surface seal, this valve can not only satisfy the conveying requirement of strong corrosive mediums such as wet chlorine for a long time, and contain under the special operation conditions such as granule foreign also not easy damaged sealing surface at medium, use more safe and reliable.
The technical solution adopted for the present invention to solve the technical problems is: a kind of nothing is leaked the wet chlorine special valve of conical surface seal, comprise the valve body, valve gap, flap, the valve rod that are covered with resistant material, described flap end is processed with 60～80 ° of conical surfaces, and described body cavity is equipped with and the flap end conical surface is complementary, makes the conical seal (contact) face that forms conical surface seal between flap and the valve body.
As a further improvement on the present invention, described flap is provided with the last sealing configuration that is made of spherical boss near valve gap one side plane; Described spherical boss is made by resistant material; Described flap end plane is provided with several equally distributed endoporus, the mouth chamfer of described endoporus; The described flap end conical surface, body cavity, stem surface are provided with equally distributed dovetail groove, are filled with resistant material and metallic matrix in the groove and constitute one; Described dovetail groove bottom land width≤3mm, width of rebate≤2mm, groove depth≤2mm.
Further improve as of the present invention, described flap and valve rod are that solid forging forms; Described resistant material is an exhaustive fluorinated ethylene propylene, and described valve gap and valve body tenon-slot type are tightly connected, and described valve body is the corrosion resistant alloy steel.
Adopt technique scheme, make the present invention have following advantage:
1, more reasonable structure more adapts to the medium transport under the special operation condition.Conical surface seal is compared with common plane sealing, is subjected to the sedimentary damage of solid particle and medium relative less, more can adapt to the requirement that contains special operation conditions such as granule foreign in the wet chlorine course of conveying sometimes.
2, use is more convenient, and being provided with sealing configuration can more easily increase and change filler.Flap is provided with the spherical boss of being made by resistant material and the last sealing configuration that constitutes near valve gap one side plane, not only can effectively stop the leakage of medium to stuffing box, and when changing filler or increasing filler, only need open valve fully and get final product, do not need as common chlor-alkali valve, to stop.
3, actual effect is more corrosion-resistant, more reliable.Be provided with a plurality of equally distributed endoporus at the flap end plane, hold 45～60 ° of angles at the mouth of endoporus; In the flap end conical surface, body cavity, stem surface equally distributed dovetail groove is set, control dovetail groove bottom land width≤3mm, width of rebate≤2mm, groove depth≤2mm, resistant material is filled in these holes and groove in, neither influence the bulk strength of flap, valve rod, can make again resistant material fully with metallic matrix formation one, loosening when guaranteeing flap, valve rod work, aliquation, bulge, the better effects if of corrosion-resistant, antiscour.Valve body material adopts the corrosion resistant alloy steel to make according to the specific (special) requirements of chemical industry for making chlorine and alkali industrial and mineral, solves often the bore a hole difficult problem of chlorine leakage of common valve housing.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in further detail:
Fig. 1 is an embodiment of the invention structural representation;
Fig. 2 is an A part partial enlarged drawing among Fig. 1.
Wherein: 1. valve body, 2. valve gap, 3. flap, 4. valve rod, 5. boss, 6. dovetail groove, the 7. conical surface.
Embodiment
A kind of nothing is as shown in Figure 1 leaked the wet chlorine special valve of conical surface seal, comprise the valve body (1), valve gap (2), flap (3), the valve rod (4) that are covered with resistant material, flap and valve rod are that solid forging forms, valve gap (2) is tightly connected with valve body (1) tenon-slot type, and valve body (1) is made by the corrosion resistant alloy steel.Flap (3) end is processed with 60～80 ° of conical surfaces (7), described valve body (1) thus the conical seal (contact) face that inner chamber is processed with and the flap end conical surface is complementary makes between flap and the valve body and forms conical surface seal.The flap end is provided with the last sealing configuration that the spherical boss (5) made by exhaustive fluorinated ethylene propylene is formed near valve gap one side plane.Flap (3) end is provided with equally distributed 8 endoporus away from valve gap one side plane, and the mouth end of the even described endoporus that distributes is 45～60 ° of angles.The flap end conical surface, body cavity, stem surface are arranged with 2～4 bottom land width≤3mm, width of rebate≤2mm, the equally distributed dovetail groove of groove depth≤2mm (6) respectively.Exhaustive fluorinated ethylene propylene is filled in above-mentioned endoporus and the dovetail groove.Scribble the anti-corrosive grease plastic envelope in being equipped with on the nut.
Claims (9)
1. one kind is not had the wet chlorine special valve of the conical surface seal of leakage, comprise the valve body, valve gap, flap, the valve rod that are covered with resistant material, it is characterized in that described flap end is processed with 60～80 ° of conical surfaces, described body cavity is equipped with and the flap end conical surface is complementary, makes the conical seal (contact) face that forms conical surface seal between flap and the valve body.
2. nothing according to claim 1 is leaked the wet chlorine special valve of conical surface seal, it is characterized in that described flap is equipped with the last sealing configuration that is made of spherical boss near on valve gap one side plane.
3. nothing according to claim 2 is leaked the wet chlorine special valve of conical surface seal, it is characterized in that described spherical boss made by resistant material.
4. nothing according to claim 3 is leaked the wet chlorine special valve of conical surface seal, it is characterized in that described flap end plane is provided with several equally distributed endoporus, the mouth chamfer of described endoporus.
5. nothing according to claim 4 is leaked the wet chlorine special valve of conical surface seal, it is characterized in that the described flap end conical surface, body cavity, stem surface are provided with equally distributed dovetail groove, resistant material is filled in the described dovetail groove, makes etch resistant material layer and metallic matrix constitute one.
6. nothing according to claim 5 is leaked the wet chlorine special valve of conical surface seal, it is characterized in that described dovetail groove bottom land width≤3mm, width of rebate≤2mm, groove depth≤2mm.
7. leak the wet chlorine special valve of conical surface seal according to the described nothing of claim 1～6, it is characterized in that described flap and valve rod are that solid forging forms.
8. leak the wet chlorine special valve of conical surface seal according to the described nothing of claim 1～6, it is characterized in that described resistant material is an exhaustive fluorinated ethylene propylene.
9. leak the wet chlorine special valve of conical surface seal according to the described nothing of claim 1～6, it is characterized in that described resistant material is an exhaustive fluorinated ethylene propylene, described valve gap and valve body tenon-slot type are tightly connected, and described valve body is the corrosion resistant alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105871513A CN102032355A (en) | 2010-12-14 | 2010-12-14 | Zero-leakage tapered sealing wet chlorine special valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105871513A CN102032355A (en) | 2010-12-14 | 2010-12-14 | Zero-leakage tapered sealing wet chlorine special valve |
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| Publication Number | Publication Date |
|---|---|
| CN102032355A true CN102032355A (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105871513A Pending CN102032355A (en) | 2010-12-14 | 2010-12-14 | Zero-leakage tapered sealing wet chlorine special valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819314A (en) * | 2015-05-23 | 2015-08-05 | 江苏江华阀业有限公司 | Special-purpose valve for eakless taper arc surface sealed wet chlorine |
| CN105673866A (en) * | 2016-04-13 | 2016-06-15 | 潘豪杰 | Leak-tightness anti-corrosion stop valve |
| CN106979344A (en) * | 2016-01-15 | 2017-07-25 | 丹佛斯有限公司 | Valve, especially heat exchanger valve |
| CN107061856A (en) * | 2016-01-15 | 2017-08-18 | 丹佛斯有限公司 | The specially valve of heat exchange valve |
-
2010
- 2010-12-14 CN CN2010105871513A patent/CN102032355A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819314A (en) * | 2015-05-23 | 2015-08-05 | 江苏江华阀业有限公司 | Special-purpose valve for eakless taper arc surface sealed wet chlorine |
| CN106979344A (en) * | 2016-01-15 | 2017-07-25 | 丹佛斯有限公司 | Valve, especially heat exchanger valve |
| CN107061856A (en) * | 2016-01-15 | 2017-08-18 | 丹佛斯有限公司 | The specially valve of heat exchange valve |
| CN107061856B (en) * | 2016-01-15 | 2019-06-07 | 丹佛斯有限公司 | The specially valve of heat exchange valve |
| CN105673866A (en) * | 2016-04-13 | 2016-06-15 | 潘豪杰 | Leak-tightness anti-corrosion stop valve |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110427 |