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CN2343429Y - Fluoroplastic full-lining butterfly valve for chlor-alkali - Google Patents

Fluoroplastic full-lining butterfly valve for chlor-alkali Download PDF

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Publication number
CN2343429Y
CN2343429Y CN 98223897 CN98223897U CN2343429Y CN 2343429 Y CN2343429 Y CN 2343429Y CN 98223897 CN98223897 CN 98223897 CN 98223897 U CN98223897 U CN 98223897U CN 2343429 Y CN2343429 Y CN 2343429Y
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CN
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Grant
Patent type
Prior art keywords
valve
body
lining
butterfly
lower
Prior art date
Application number
CN 98223897
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Chinese (zh)
Inventor
陶永宏
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南通市苏中化工阀门厂
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Abstract

The utility model relates to a fluoroplastic full-lining butterfly valve for chlor-alkali, which is used on a pipeline of chemical industry. The utility model comprises an upper valve body, a lower valve body, a butterfly plate, an upper guide sleeve, a lower guide sleeve and a drive part. The utility model is characterized in that a circular lining with the sealing surfaces of two ends which is made from poly-perfluoro-ethylene-propylene is arranged in an inner cavity of a valve body, multi-layer fillings are arranged between the valve body and the lining to make a strong corrosive medium not contacted with the upper valve body and the lower valve body (a metal body), the lining has the advantages of corrosion resistance and low temperature resistance, the butterfly plate is designed into a circular arc shape, and the surface of the butterfly plate is heatedly coated with a strong-corrosion-resistant plastic layer to ensure that the valve has the advantages of safe use, long service life and good sealing performance.

Description

氯碱用氟塑料全衬蝶阀 Alkali fluoroplastic fully padded Butterfly

本实用新型是一种用于化工氯碱管道上控制介质流动的一种氯碱用氟塑料全衬蝶阀。 The present invention is a method for controlling one kind of alkali medium flowing in a pipeline with a chlor-alkali chemical fluoroplastic valve fully padded.

经检索有关专利文献,尚未发现与本实用新型结构相同的蝶阀。 For retrieved Patent Document, the present invention has not yet found the same valve configuration. 目前国内化工行业使用的蝶阀内,由于不具有抗强腐蚀的氟塑料全衬,阀体极易被腐蚀,发生泄漏,产生事故,造成经济损失。 Currently in the domestic chemical industry to use the butterfly, because they do not have strong anti-corrosion fluorine plastic lining of the whole, the body vulnerable to corrosion, leakage, resulting in an accident, resulting in economic losses.

本实用新型的目的是提供一种能抗强腐蚀,密封性能好,耐低温,使用安全可靠的氯碱用氟塑料全衬蝶阀。 The object of the present invention is to provide an anti-corrosion, good sealing properties, low temperature, safety and reliability of the whole alkali fluoroplastic lined butterfly valve.

本实用新型的技术解决方案是:氯碱用氟塑料全衬蝶阀,包括上阀体、下阀体、蝶板、上、下导套、传动部件,其特征是:在阀体内腔装有用聚全氟乙丙烯制成带两端密封面的圆形衬套,在阀体与衬套间装有多层填料,蝶板设为圆弧形,在其表面热覆有聚全氟乙丙烯。 The present invention is technical solutions: alkali fluoroplastic fully padded butterfly valve, comprising a valve body, the body, disc, the upper and lower guide sleeve, the drive member, wherein: the body cavity with poly Full FEP liner is made with a circular sealing surface at both ends, with the filler between the multilayer body and the liner, disc-shaped circular arc, coated with poly FEP heat the surface thereof. 在上、下阀体中部设有密封槽,槽内装有填料。 On the middle lower valve body is provided with a sealing groove, with groove fillers. 在上、下导套的内壁上镶嵌有钢套。 On inlaid steel sleeve on the inner wall of the guide sleeve. 在蝶板的上、下轴与上、下阀体联接处装有蝶形弹簧,在蝶形弹簧的端点装有上、下导套。 On the disc, the lower shaft with the butterfly valve is coupled at the lower spring end fitted on the disc spring, the guide sleeve.

安装在管道上的氯碱用氟塑料全衬蝶阀,当转动传动部件,带动蝶板开启,使流体介质通过。 Alkali installed in the pipe with a butterfly valve fully padded fluoroplastic, when rotating the drive member, the disc drive is turned on, the fluid medium through. 反之,当蝶板关闭,阻止流体介质通过。 Conversely, when the disc is closed, preventing fluid medium through.

本实用新型的优点是:结构新颖合理,由于阀体与衬套之间设有多层填料,当蝶板关闭时,蝶板挤压衬套,阀体与衬套之间产生弹性变形,使蝶板与衬套间构成无间隙密封。 The advantage of the present invention: reasonable and novel structure, since the packing is provided between the multilayer body and the bush, when closing the disc, the disc pressing elastically deformed between the bush, the bush and the valve body, so that between the disc and the bush constituting the seal without gaps. 由于在阀体内腔装有采用聚全氟乙丙烯的衬套,使阀体内的强腐蚀性介质与上、下阀体不接触,避免阀体被腐蚀,同时衬套可长期使用温度在-40℃-250℃之间,并具有绝缘性、抗老化性,表面不粘性,良好的润滑性。 Since the body cavity with the use of polyethylene FEP liner, so that the corrosive medium and the valve body, does not contact the lower valve body, the valve body to avoid corrosion, the liner while long-term use temperature of -40 between ℃ -250 ℃, and having an insulating resistance, aging resistance, surface non-tackiness, good lubricity. 由于蝶板设为圆弧形,当关闭蝶阀时,蝶板逐步挤压衬套,构成无间隙密封。 Since the disc is set to a circular arc shape, when the valve closed, the disc gradually squeezing the liner constituting sealed without gaps. 确保蝶阀密封可靠。 Butterfly valve to ensure reliable sealing. 由于在上、下导套的内壁上镶嵌有铜套,使上、下导套增强耐磨,从而提高蝶阀的使用寿命。 Since the upper and lower inner wall of the guide sleeve is inlaid with copper sleeve, the upper and lower guide sleeve enhanced wear and thereby increase the service life of the valve. 由于在蝶板的上、下轴与上、下阀体联接处装有蝶形弹簧,蝶形弹簧产生的压力,压住填料,可避免蝶板上、下两轴处泄漏,使用安全可靠,能满足氯碱管道上连续运行的使用要求。 Since on the disc, and a lower shaft, the lower valve body coupled with the pressure at the Belleville springs, Belleville springs produced suppress fillers, butterfly board can be avoided, the two axis of leakage, safety and reliability, You can meet the requirements of the chlor-alkali duct continuous operation.

以下结合附图说明本实用新型的实施例:附图是氯碱用氟塑料全衬蝶阀的结构示意图。 BRIEF DESCRIPTION The following embodiments of the present invention: alkali drawings is a schematic view of a fluoroplastic fully padded butterfly valves.

参照附图所示,将压铸并经加工成形的耐磨铜套2(2件)分别镶嵌在下导套1和上导套9的内壁上形成整体,蝶形弹簧8、密封填料6装入下阀体3的密封槽内,将下导套1装入下阀体3的定位孔内通过螺栓联接,将模压成形并经烘制定型的圆形密封衬套4装在下阀体3上。 8, the charged packing 6 shown in the drawings, by die casting and the wear-resistant copper sleeve forming process 2 (2) are inlaid integrally formed lower guide sleeve, and a disc spring on an inner wall of the reference guide sleeve 9 a seal groove of the valve body 3, the lower guide sleeve 1 into the positioning hole of the valve body 3 by a bolt connection, the molded and shaped by the circular fumed 4 mounted on the valve body 3 lower sealing bush. 将热覆有聚全氟乙丙烯的蝶板5装在下阀体3上,蝶板的下轴与镶嵌有铜套的下导套相配合。 The hot polyethylene coated FEP butterfly plate 5 fixed to the lower valve body 3, the lower shaft with the lower insert has a disc guide sleeve cooperates copper sleeve. 蝶形弹簧8、填料6装入蝶板5的上轴上,将上阀体7沿蝶板的上轴装入和下阀体3通过螺栓联接为一体。 Belleville springs 8, the axis of the filler 6 is loaded in the disc 5, the upper valve body 7 and the upper shaft into the lower edge of the disc valve element 3 by a bolt coupled integrally. 将上导套9装入上阀体7上通过螺栓固定,将传动部件10装在上阀体7的上方并与上阀体7通过螺栓固定。 The load on the guide sleeve 9 on the valve body 7 is fixed by a bolt, the transmission member 10 is mounted above the valve body and the bolts 7 and 7 through the valve body.

Claims (4)

  1. 1.一种氯碱用氟塑料全衬蝶阀,包括上阀体、下阀体、蝶板、上、下导套、传动部件,其特征是:在阀体内腔装有用聚全氟乙丙烯制成带两端密封面的圆形衬套,在阀体与衬套间装有多层填料,蝶板设为圆弧形,在其表面热覆有聚全氟乙丙烯。 An alkali fully padded with fluoroplastic valve, including a valve body, the body, disc, on the guide sleeve, the transmission member, characterized in that: in the body cavity with poly FEP made ends with a circular sealing surface of the liner, the liner between the valve body and provided with multilayer packing, disc-shaped circular arc, coated with poly FEP heat the surface thereof.
  2. 2.根据权利要求1所述的氯碱用氟塑料全衬蝶阀,其特征在于:在上、下阀体中部设有密封槽,槽内装有填料。 The chlor-alkali fluoroplastic fully padded butterfly valve according to claim 1, wherein: the upper and lower central body is provided with a sealing groove, with groove fillers.
  3. 3.根据权利要求1所述的氯碱用氟塑料全衬蝶阀,其特征在于:在上、下导套的内壁上镶嵌有铜套。 The chlor-alkali fluoroplastic fully padded butterfly valve according to claim 1, wherein: in the inlaid copper sleeve on the inner wall of the guide sleeve.
  4. 4.根据权利要求1所述的氯碱用氟塑料全衬蝶阀,其特征在于:在蝶板的上、下轴与上、下阀体联接处装有蝶形弹簧,在蝶形弹簧的端点装有上、下导套。 The chlor-alkali fluoroplastic fully padded butterfly valve according to claim 1, wherein: on the disc, the lower shaft and the upper valve body coupled with the lower leg spring, mounted at the ends of the leg spring upper and lower guide sleeve.
CN 98223897 1998-04-30 1998-04-30 Fluoroplastic full-lining butterfly valve for chlor-alkali CN2343429Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98223897 CN2343429Y (en) 1998-04-30 1998-04-30 Fluoroplastic full-lining butterfly valve for chlor-alkali

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98223897 CN2343429Y (en) 1998-04-30 1998-04-30 Fluoroplastic full-lining butterfly valve for chlor-alkali

Publications (1)

Publication Number Publication Date
CN2343429Y true CN2343429Y (en) 1999-10-13

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CN 98223897 CN2343429Y (en) 1998-04-30 1998-04-30 Fluoroplastic full-lining butterfly valve for chlor-alkali

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8348236B2 (en) 2007-10-31 2013-01-08 Saint-Gobain Performance Plastics Corporation Butterfly valve with a rigid seal
US8616585B2 (en) 2007-10-31 2013-12-31 Saint-Gobain Performance Plastics Corporation Pipe coupling
US8800965B2 (en) 2007-10-31 2014-08-12 Saint-Gobain Performance Plastics Corporation Butterfly valve with a rigid seal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8348236B2 (en) 2007-10-31 2013-01-08 Saint-Gobain Performance Plastics Corporation Butterfly valve with a rigid seal
US8616585B2 (en) 2007-10-31 2013-12-31 Saint-Gobain Performance Plastics Corporation Pipe coupling
US8800965B2 (en) 2007-10-31 2014-08-12 Saint-Gobain Performance Plastics Corporation Butterfly valve with a rigid seal

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