CN204878717U - Flange structure - Google Patents

Flange structure Download PDF

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Publication number
CN204878717U
CN204878717U CN201520197362.4U CN201520197362U CN204878717U CN 204878717 U CN204878717 U CN 204878717U CN 201520197362 U CN201520197362 U CN 201520197362U CN 204878717 U CN204878717 U CN 204878717U
Authority
CN
China
Prior art keywords
flange
lining ring
utility
model
arc section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520197362.4U
Other languages
Chinese (zh)
Inventor
罗竞东
陈伟生
张嘉楠
李德尹
颜炳辉
李嘉平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Meiyan Jixiang Hydropower Co Ltd
Original Assignee
Guangdong Meiyan Jixiang Hydropower Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Meiyan Jixiang Hydropower Co Ltd filed Critical Guangdong Meiyan Jixiang Hydropower Co Ltd
Priority to CN201520197362.4U priority Critical patent/CN204878717U/en
Application granted granted Critical
Publication of CN204878717U publication Critical patent/CN204878717U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a flange structure, including flange A, flange B, bolt, nut, gasket, junk ring, flange A places the gasket with the sealed interfacial of flange B, and two flanges reach sealed effect by the screw bolt and nut fastening connection, weld respectively on flange A and flange B internal face at the both ends of junk ring, the utility model discloses a junk ring coordinates flange and gasket seal, reaches double sealing's effect, and the circular arc section compensation on the junk ring is because temperature and pressure variation lead to the fact the flange in axial flexible deformation.

Description

A kind of flange arrangement
Technical field
The utility model relates to the flanged connecting structure of chemical industry equipment, particularly relates to a kind of flange arrangement.
Background technique
In the use of chemical industry equipment and running, leakage is one of problem common during equipment runs.Chemical industry equipment is due to structural feature and manufacture the factors such as production, adopts Flange joint between most component.Vessel flange is connected by fastening pieces such as bolt and nuts, and grip gasket, reaches sealing effect.But due to the croop property of material, equipment is under temperature and pressure change, and after equipment runs a period of time, fastening piece may loosen, and causes the trace of device interior medium to reveal.The leakage of equipment, not only affects the normal operation of equipment, also delays the production of factory, cause larger economic loss.
Model utility content
The utility model, in order to overcome deficiency of the prior art, provides a kind of flange arrangement.
The utility model is achieved through the following technical solutions:
A kind of flange arrangement, comprises flange A2, flange B3, bolt 4, nut 1, pad 5; Place pad 5 between flange A2 and flange B3 sealing surface, two flanges are fastenedly connected by bolt 4 and nut 1, reach sealing effect; The two ends of one lining ring 8 are welded on the flange inner wall face 6 of flange A2 and flange B3 respectively; Described lining ring 8 has arc section 11, straight section A9 and straight section B10, the arc of arc section 11 is inside lining ring 8; In partition equipment, medium and flange facing, pad, play the effect of sealing further, forms double seal with flange and gasket seal simultaneously; Described lining ring there is arc section, arc section is inside lining ring, arc section on lining ring is similar to the principle of expansion joint on heat exchanger, when temperature and pressure changes, arc section can make up the dilatation of vessel flange in axis, and the weld seam of lining ring and vessel flange can not ftracture because temperature and pressure changes; It is comparatively large that this structure is particularly useful for the inner spaces such as reactor, storage tank, tower, and leave the equipment of manhole.
As optimal technical scheme of the present utility model, the material of described lining ring is identical with flange material or close, select the material identical or close with flange material to be produce galvanic corrosion after preventing lining ring and flange welding, ensure using effect and the working life of flange.
As optimal technical scheme of the present utility model, the arc section radius of arc on described lining ring is 10 ~ 15mm.
As optimal technical scheme of the present utility model, the thickness of described lining ring is 2mm.
Compared with prior art, the beneficial effects of the utility model are:
The utility model, by welding lining ring inside vessel flange, coordinates flange and gasket seal, reaches the effect of double seal, and the arc section on lining ring compensates because temperature and pressure change causes flange at the dilatation of axis.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the sectional view of lining ring of the present utility model.
In figure: 1, nut; 2, flange A; 3, flange B; 4, bolt; 5, pad; 6, flange inner wall face; 7, weld seam; 8, lining ring; 9, straight section A; 10, straight section B; 11, arc section.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 2, Fig. 1 is structural representation of the present utility model, and Fig. 2 is the sectional view of the utility model lining ring.
A kind of flange arrangement, comprises flange A2, flange B3, bolt 4, nut 1, pad 5; Place pad 5 between flange A2 and flange B3 sealing surface, two flanges are fastenedly connected by bolt 4 and nut 1, reach sealing effect; The two ends of one lining ring 8 are welded on the flange inner wall face 6 of flange A2 and flange B3 respectively; Described lining ring 8 there are arc section 11, straight section A9 and straight section B10, the arc of arc section 11 is inside lining ring 8, medium and flange facing, pad 5 in partition equipment, play the effect of sealing further, the sealing configuration simultaneously sealed with flange A2, flange B3 and pad 5 forms double seal; Described lining ring 8 there is arc section 11, arc section 11 is inside lining ring 8, arc section 11 on lining ring 8 is similar to the principle of expansion joint on heat exchanger, when temperature and pressure changes, arc section 11 can make up the dilatation of vessel flange in axis, and lining ring 8 can not ftracture because temperature and pressure changes with the weld seam 7 of vessel flange; It is comparatively large that this structure is particularly useful for the inner spaces such as reactor, storage tank, tower, and leave the equipment of manhole.
The material of described lining ring 8 is identical with flange material or close, selects the material identical or close with flange material to be produce galvanic corrosion after preventing lining ring 8 and flange welding, ensures using effect and the working life of flange; Arc section 11 radius of arc on described lining ring 8 is 10 ~ 15mm; The thickness of described lining ring 8 is 2mm.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims (4)

1. a flange arrangement, comprises flange A (2), flange B (3), bolt (4), nut (1), pad (5); Place pad (5) between flange A (2) and flange B (3) sealing surface, two flanges are fastenedly connected by bolt (4) and nut (1), reach sealing effect; It is characterized in that: the two ends of a lining ring (8) are welded on the flange inner wall face (6) of flange A (2) and flange B (3) respectively; Described lining ring (8) has arc section (11), straight section A (9) and straight section B (10), the arc of arc section (11) is towards lining ring (8) inner side.
2. a kind of flange arrangement according to claim 1, is characterized in that, the material of described lining ring (8) is identical or close with flange B material with flange A.
3. a kind of flange arrangement according to claim 1, is characterized in that, arc section (11) radius of arc on described lining ring (8) is 10 ~ 15mm.
4. a kind of flange arrangement according to claim 1, is characterized in that, the thickness of described lining ring (8) is 2mm.
CN201520197362.4U 2015-04-03 2015-04-03 Flange structure Expired - Fee Related CN204878717U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520197362.4U CN204878717U (en) 2015-04-03 2015-04-03 Flange structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520197362.4U CN204878717U (en) 2015-04-03 2015-04-03 Flange structure

Publications (1)

Publication Number Publication Date
CN204878717U true CN204878717U (en) 2015-12-16

Family

ID=54823091

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520197362.4U Expired - Fee Related CN204878717U (en) 2015-04-03 2015-04-03 Flange structure

Country Status (1)

Country Link
CN (1) CN204878717U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106763769A (en) * 2016-11-15 2017-05-31 中国舰船研究设计中心 A kind of close property device in mechanical connection face

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106763769A (en) * 2016-11-15 2017-05-31 中国舰船研究设计中心 A kind of close property device in mechanical connection face

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151216

Termination date: 20170403

CF01 Termination of patent right due to non-payment of annual fee