CN204878780U - There is not sealed wet chlorine dedicated valve of awl of leakage arc curved surface - Google Patents
There is not sealed wet chlorine dedicated valve of awl of leakage arc curved surface Download PDFInfo
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- CN204878780U CN204878780U CN201520335897.3U CN201520335897U CN204878780U CN 204878780 U CN204878780 U CN 204878780U CN 201520335897 U CN201520335897 U CN 201520335897U CN 204878780 U CN204878780 U CN 204878780U
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Abstract
The utility model provides an existence is not enough, discloses a there is not sealed wet chlorine dedicated valve of awl of leakage arc curved surface, including covering valve body, valve gap, valve clack, the valve rod that has corrosion -resistant material, the valve clack can slide about the valve gap is inside, and the processing of valve gap tip side has 60-80 awl cambered surfaces, thereby the valve body inner chamber has been put and the sealed face of valve clack tip awl cambered surface assorted awl arc curved surface makes that to form convex spherical between valve clack and the valve body sealed, medium contact segment surfaces coated elasticity corrosion -resistant material coating. The utility model has the advantages that can not only satisfy strong corrosive medium's such as wet chlorine transport requirement for a long time, it has self -healing to haring sealed mask under the special operating mode such as granule impurity to contain at the medium moreover, uses safe and reliable more.
Description
Technical field
The utility model relates to a kind of valve for deep-etching substance use such as wet chlorine, particularly a kind of special valve that can prevent dielectric leakage, contain cone arc surface sealing configuration.
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 general not corrosion-resistant.This type of common valve, once for carrying the deep-etchings such as chlor-alkali, poisonous medium, with the as easy as rolling off a log corrosion of medium contact part and leaking, thus harm surrounding enviroment and personal safety.
In recent years, according to the particular/special requirement of poisonous, easy leaking medium conveying, for some defects that existing valve uses, now to disclose in the art much about the technological scheme of valve special for chlorine preventing chlorine leakage.Wherein, Suzhong Chemical Valve Factroy, Nantong City has applied for " Fluoroplastic full-lining stop valve for chlor-alkali " (number of patent application is 98223898.3) by name on April 30th, 1998, its technological scheme is mainly: a kind of Fluoroplastic full-lining stop valve for chlor-alkali on chlor-alkali pipeline, comprise: valve body, valve gap, flap assembly, drive link, handwheel, flange facing in valve body, two ends flange facing and body cavity on the surface soaking cover perfluoroethylene-propylene, and be linked to be entirety, form full lining, full lining and matrix (metal body) are sintered to one, drive link and flap are set to split type.When opening/shutting valve, drive link rotarily drives flap and moves up and down, and ensure that without adhesive wear between sealing surface, guarantees tight seal, do not leak, anti-deep-etching, and safe and reliable, the life-span is long.But this technological scheme in actual applications, because it still adopts plane sealing structure, being closed containing more easily damaging sealing by pressure under the special operation conditions such as granule foreign, being caused seal failure and leaking in fed sheet of a media.
In addition, easily wearing clearance is there is between the valve rod of existing regulating valve special for chlorine and valve gap, cause chlorine leakage, this problem of filler cannot be changed online, Jiangsu Jianghua Valve Co., Ltd. to file an application and in " Novel special adjusting valve for chlorine " patent of invention (patent No. is 200920313033.6) of patented mandate on July 21 in 2010 on October 22nd, 2009, it discloses a kind of Novel special adjusting valve for chlorine, comprise valve body, valve gap, flap and valve rod, packing seal mechanism is provided with between valve rod and valve gap, on valve rod below described packing seal mechanism, cover has lips soft framework seal ring, its cross section is roughly in falling " V " shape, inward flange is respectively equipped with up and down inside it, the relevant position of described valve gap is provided with corresponding annular groove, for holding lips soft framework seal ring.This technological scheme has that structure is simple, good seal performance, closes torsion advantage that is little, not easy to leak, but it adopts is also plane sealing structure, once work condition abnormality, still likely damages sealing surface by pressure and causes seal failure.In addition, existing wet chlorine valve seldom has upper sealing, is difficult to effectively prevent medium to gland leakage on the one hand, increases on the other hand or change filler to bring very large inconvenience.
Summary of the invention
The plane sealing structure deficiency that generation is leaked special operation condition lower sealing surface is fragile is adopted in order to overcome existing wet chlorine valve, the utility model provides a kind of No leakage to bore the wet chlorine special valve of arc surface sealing, this valve can not only meet the conveying requirement of the strong corrosive mediums such as wet chlorine for a long time, and also not easy damaged sealing surface is contained under the special operation conditions such as granule foreign at medium, use more safe and reliable.
The utility model solves the technological scheme that its technical problem adopts: the wet chlorine special valve of a kind of No leakage cone arc surface sealing, comprises the valve body, valve gap, flap, the valve rod that are covered with resistant material.
Described valve rod links with handwheel, can be rotated with handwheel, and utilizes snap ring to stop rotating part to move under mountain in valve gap;
Outside, described flap upper end has spline to coordinate with valve gap, and upper end is connected with rotating part valve rod outside thread by internal thread, and when handwheel rotates, flap moves up and down in valve body, realizes the opening and closing movement of flap.Flap end sides is processed with 60 ~ 80 ° of cone cambered surfaces, and described body cavity is equipped with and flap end is bored cambered surface and matched, makes to form the convex spherical sealing surface of boring arc surface and sealing between flap and valve body.
As further improvement of the utility model, described flap is provided with the upper sealing configuration be made up of spherical boss near valve gap one side plane; Described spherical boss is made up of 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, be filled with elasticity resistant material and be integrally formed with metallic matrix in groove; Described dovetail groove slot bottom width≤3mm, width of rebate≤2mm, groove depth≤2mm.
Describedly allly state elasticity corrosion-resistant finishes with medium contact part surface, described valve gap and valve body are bored arc surface and are tightly connected, and described valve body is corrosion resistant alloy Steel material.
Adopt technique scheme, tool of the present invention had the following advantages:
1, more reasonable structure, more adapts to the medium transport under special operation condition.The sealing of cone cambered surface with common plane, bore compared with plane sealing, relative less by the sedimentary damage of solid particle and medium, more can adapt to the requirement containing the special operation conditions such as granule foreign in wet chlorine course of conveying sometimes.
2, use more convenient, being provided with sealing configuration can more easily increase and change filler.Flap is provided with the spherical boss be made up of resistant material and the upper sealing configuration formed near valve gap side cambered surface, not only can effectively stop medium to the leakage of stuffing box, and only need a valve to open completely when changing filler or increasing filler, do not need to stop as common chlor-alkali valve.
3, actual effect is more corrosion-resistant, more reliable.Valve flap contacts face is cone cambered surface, and applies elasticity corrosion-resistant finishes.Can the switching characteristic of rapid adjustment valve by changing impacting force when sheet erosion; Be provided with multiple equally distributed endoporus at flap end plane, fall 45 ~ 60 ° of angles at the mouth end of endoporus; In the flap end conical surface, body cavity, stem surface, equally distributed dovetail groove is set, control dovetail groove slot bottom width≤3mm, width of rebate≤2mm, groove depth≤2mm, resistant material be filled in this some holes and in groove, neither affect the bulk strength of flap, valve rod, resistant material can be made again to be integrally formed with metallic matrix completely, do not loosen when ensureing the work of flap, valve rod, aliquation, bulge, the better effects if of corrosion-resistant, antiscour.Valve body material adopts corrosion resistant alloy steel to make according to chemical industry for making chlorine and alkali industrial and mineral particular/special requirement, solves common valve housing and often to bore a hole the difficult problem of chlorine leakage.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is part A partial enlarged drawing in Fig. 1.
Fig. 3 is part B partial enlarged drawing in Fig. 2.
Wherein: 1. valve body, 2. valve gap, 3. flap, 4. valve rod, 5. boss, 6. elasticity corrosion-resistant finishes, 7. bores cambered surface.
Embodiment
The wet chlorine special valve of a kind of No leakage cone arc surface sealing as shown in Figure 1, comprise the valve body (1), valve gap (2), flap (3), the valve rod (4) that are covered with resistant material, for being threaded between flap with valve rod, valve gap (2) and valve body (1) are bored arc surface and are tightly connected, and valve body (1) is made up of corrosion resistant alloy Steel material.Flap (3) end sides is processed with 60 ~ 80 ° of cones cambered surface (7), the cone arc sealing surface that described valve body (1) embedded SMA actuators has and the flap end conical surface matches thus make to be formed between flap and valve body and bore arc surface and seal.Flap end is provided with near valve gap one side plane the upper sealing configuration that the spherical boss (5) be made up of elasticity resistant material forms.Flap (3) end is provided with equally distributed 8 endoporus away from valve gap one side plane, and the mouth end of the described endoporus of even distribution falls 45 ~ 60 ° of angles.Flap end cone cambered surface, body cavity, stem surface are arranged with 2 ~ 4 slot bottom width≤3mm, width of rebate≤2mm, the equally distributed dovetail groove of groove depth≤2mm, surperficial flexible corrosion-resistant finishes (6) respectively.Add elasticity resistant material to be filled in above-mentioned endoporus and dovetail groove.Anti-corrosive grease plastic envelope is scribbled in nut is equipped with.
Claims (3)
1. the wet chlorine special valve of No leakage cone arc surface sealing, comprise the valve body, valve gap, flap, the valve rod that are covered with resistant material, it is characterized in that described flap side end is processed with 60 ~ 80 ° of cone cambered surfaces, described body cavity is equipped with and the flap end conical surface matches, make between flap and valve body, to form the convex spherical seal surface of boring arc surface and sealing.
2. the wet chlorine special valve of No leakage cone arc surface sealing according to claim 1, is characterized in that in described valve and all flexible corrosion-resistant finishes of medium contact part.
3. the wet chlorine special valve of No leakage cone arc surface sealing according to claim 2, is characterized in that described flap can slide up and down in valve gap inside under valve rod rotary motion, realizes the folding of valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335897.3U CN204878780U (en) | 2015-05-23 | 2015-05-23 | There is not sealed wet chlorine dedicated valve of awl of leakage arc curved surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520335897.3U CN204878780U (en) | 2015-05-23 | 2015-05-23 | There is not sealed wet chlorine dedicated valve of awl of leakage arc curved surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878780U true CN204878780U (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520335897.3U Active CN204878780U (en) | 2015-05-23 | 2015-05-23 | There is not sealed wet chlorine dedicated valve of awl of leakage arc curved surface |
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| CN (1) | CN204878780U (en) |
Cited By (1)
| 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 |
-
2015
- 2015-05-23 CN CN201520335897.3U patent/CN204878780U/en active Active
Cited By (1)
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |