CN2079686U

CN2079686U - Strengthened wind washer

Info

Publication number: CN2079686U
Application number: CN 90221087
Authority: CN
Inventors: 邵君平; 任欣; 方德明
Original assignee: ZHEJIANG POLYTECHNICAL COLLEGE
Current assignee: ZHEJIANG POLYTECHNICAL COLLEGE
Priority date: 1990-09-22
Filing date: 1990-09-22
Publication date: 1991-06-26

Abstract

The utility model discloses a strengthened wind washer which is composed a sealing body (1), an inner ring (2) and an outer ring (3) or composed of the sealing body (1) and the inner ring (2). A wire or a stainless steel wire surrounds a circular ring to form the inner ring (2). The strengthened wind washer is suitable for sealing various pressure vessels and pipe flanges thereof. The strengthened wind washer has the advantages of simple structure, low cost and sealing safety. The strengthened wind washer can be used to seal a flat flange, a male and female flange and a tongue and groove face flange.

Description

Strengthened wind washer

The utility model belongs to spirotallic gasket, and especially the enhancement mode spirotallic gasket is applicable to the occasion that various pressurized containers and piping flange thereof seal.

Before the utility model is made, the spirotallic gasket that the flange seal of prior art pressurized container and pipeline adopts has four types: 1, basic model spirotallic gasket, form by seal body 1, be applicable to the sealing of male and female flange, tongue and groove flange, but can not be used for the sealing of face-flange, and be easy to overvoltage and follow the string, inboard easily unstability and cause leakage, such major diameter pad is made difficulty, cost height; 2, the spirotallic gasket of ring in the band is by seal body 1 and A ₃Or corrosion resistant plate constitutes 2 compositions of interior ring of rectangle section, is only applicable to the sealing of male and female flange, and the manufacture cost height; 3, the spirotallic gasket of band outer shroud is by seal body 1 and A ₃Or the outer shroud 3 of corrosion resistant plate formation rectangle section is formed; 4, the spirotallic gasket of band inside and outside ring is by seal body 1, A ₃Or interior ring 2 and outer shroud 3 that corrosion resistant plate constitutes the rectangle section form, and back two class spirotallic gaskets are only applicable to the sealing of face-flange, and the manufacture cost height is easy to overvoltage follow the string, inboard easy unstability and cause leakage.

Task of the present utility model is to overcome the deficiencies in the prior art, and a kind of compact structure, low cost of manufacture, applied widely, the reliable enhancement mode spirotallic gasket of sealingly secure are provided.

The enhancement mode spirotallic gasket includes seal body 1, interior ring 2, outer shroud 3 or seal body 1, interior ring 2, and ring 2 in being provided with in the seal body 1 is provided with outer shroud 3 outside the sealing body 1, or ring 2 in being provided with in the seal body 1, and outer shroud 3 is by A ₃Or the annulus of corrosion resistant plate formation rectangle section, interior ring 2 is made of the annulus that iron wire or Stainless Steel Wire surround.The iron wire of ring 2 or the diameter of Stainless Steel Wire are 1.8～5.5 millimeters in forming.

Fig. 1 is the enhancement mode spirotallic gasket structural representation of ring in the band.

Wherein 1---seal body, 2---interior ring.

Fig. 2 is the inside and outside enhancement mode spirotallic gasket structural representation of band.

Wherein 1---seal body, 2---interior ring, 3---outer shroud.

As shown in Figure 1 and Figure 2, spirotallic gasket of the present utility model, the interior ring 2 that the annulus that adopts iron wire or stainless steel wire to surround consists of replaces prior art A₃Or corrosion resistant plate consists of the annulus 2 of rectangle section, according to pressure vessel and pipe fluid pressure height thereof, select iron wire and the stainless steel wire of suitable diameter, the decrement of the iron wire by forming interior ring 2 or this pad of diameter control of stainless steel wire, make seal body 1 have enough elasticity, be difficult for overvoltage, unstability and cause leakage, and has a compact conformation, low cost of manufacture, applied range, good seal performance, the advantage such as safe and reliable can be widely used in the occasion of pressure vessel and ducted face-flange thereof, male and female flange, tongue and groove flange sealing.

Embodiment:

With the ammonia convertor is example, medium is mainly nitrogen and hydrogen in the tower, synthesis pressure is 200 barometric pressure, temperature is 200 ℃, the sealing of employing tongue and groove flange, the sealing surface external diameter is 539 millimeters, and external diameter is 500 millimeters, and the interior ring 2 of selecting for use the annulus that surrounded by seal body 1 and iron wire or Stainless Steel Wire to constitute is formed the enhancement mode spirotallic gasket of ring in the band, the pad external diameter is 537 millimeters, internal diameter is 502 millimeters, and iron wire or Stainless Steel Wire diameter are 3.8 millimeters, overvoltage do not occur, the leakage situation that unstability causes, sealability reaches the requirement of production, safe and reliable, social economic benefit are remarkable, have bigger implementary value.

Claims

1, enhancement mode spirotallic gasket, formed by seal body (1), interior ring (2), outer shroud (3) or by seal body (1), interior ring (2), inside and outside interior ring (2), the outer shroud (3) of being provided with respectively of interior ring (2) or sealing body (1) is set in the sealing body (1), and outer shroud (3) is by A ₃Steel plate or corrosion resistant plate constitute the annulus of rectangle section, it is characterized in that interior ring (2) is made of the annulus that iron wire or Stainless Steel Wire surround.

2, pad as claimed in claim 1, the iron wire or the Stainless Steel Wire diameter that it is characterized in that forming interior ring (2) are 1.8～5.5 millimeters.