CN202016680U - 大口径法兰 - Google Patents

大口径法兰 Download PDF

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Publication number
CN202016680U
CN202016680U CN2011200912837U CN201120091283U CN202016680U CN 202016680 U CN202016680 U CN 202016680U CN 2011200912837 U CN2011200912837 U CN 2011200912837U CN 201120091283 U CN201120091283 U CN 201120091283U CN 202016680 U CN202016680 U CN 202016680U
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flange
caliber
stress
utility
model
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CN2011200912837U
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English (en)
Inventor
谭正宏
贾其庚
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Individual
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  • Butt Welding And Welding Of Specific Article (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

本实用新型公开了一种广泛应用在煤化工、甲醇工程、精细化工和航天等领域中的大口径反应釜及真空容器上均要用到的大口径法兰，包括法兰本体，在所述法兰本体上设置有应力槽。大口径法兰与筒体焊接部位的附近设置有削减焊接应力的应力槽，改变了法兰的受力和应力，降低法兰内外端面与轴线的偏差，减少法兰二次加工的余量。

Description

大口径法兰
技术领域
本实用新型涉及一种金属法兰，尤其是涉及到一种大口径金属法兰。
背景技术
在煤化工、甲醇工程和精细化工等化工领域均要用到各种大口径耐腐蚀反应釜，广泛用于航天和热真空环境下的真空容器等等，而这些大口径反应釜和真空容器上均要用到大口径法兰，国内所采用的大口径法兰均采用JB/T4701、4703-2000甲型平焊法兰、乙型平焊法兰、长颈对焊法兰和GB/T6070-2007《真空技术法兰尺寸》法兰，这些法兰的宽度较宽、厚度较厚，使筒体与法兰焊接后，法兰变形量大，法兰内外端面与筒体轴线偏差量大，不易进行加工，即使二次加工，法兰加工后的厚度厚薄不均，导致法兰的强度下降，影响了设备的使用寿命。
实用新型内容
本实用新型目的在于提供一种新型结构的大口径法兰，在原来的大口径法兰与筒体焊接部位的附近设置有应力槽，降低法兰内外端面与轴线的偏差。
实现本实用新型目的的技术方案是：
一种大口径法兰，包括法兰本体，其特征在于：在所述法兰本体上设置有应力槽。
本实用新型与现有技术相比具有如下优点：
大口径法兰与筒体焊接部位的附近设置有削减焊接应力的应力槽，改变了法兰的受力和应力，降低法兰内外端面与轴线的偏差，减少法兰二次加工的余量。
附图说明
图1为本实用新型所述大口径法兰的结构示意图
1.法兰本体    2.应力槽
具体实施方式
以下实施例用于说明本实用新型，但不用来限制本实用新型的范围，所有等同的技术方案也属于本实用新型的范畴，本实用新型的专利保护范围应由各项权利要求限定。
从图1中可以看出，一种大口径法兰，包括法兰本体1，在所述法兰本体1上设置有应力槽2。

Claims (1)

1.一种大口径法兰，包括法兰本体(1)，其特征在于：在所述法兰本体(1)上设置有应力槽(2)。
CN2011200912837U 2011-03-31 2011-03-31 大口径法兰 Expired - Fee Related CN202016680U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200912837U CN202016680U (zh) 2011-03-31 2011-03-31 大口径法兰

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200912837U CN202016680U (zh) 2011-03-31 2011-03-31 大口径法兰

Publications (1)

Publication Number Publication Date
CN202016680U true CN202016680U (zh) 2011-10-26

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CN2011200912837U Expired - Fee Related CN202016680U (zh) 2011-03-31 2011-03-31 大口径法兰

Country Status (1)

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CN (1) CN202016680U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108194748A (zh) * 2018-03-10 2018-06-22 孙萍 去应力gis波纹管补偿器法兰

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108194748A (zh) * 2018-03-10 2018-06-22 孙萍 去应力gis波纹管补偿器法兰

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: JINGJIANG SHENJU VESSEL MANUFACTURING CO., LTD.

Assignor: Tan Zhenghong

Contract record no.: 2013320000709

Denomination of utility model: Large-diameter flanged watermeter

Granted publication date: 20111026

License type: Exclusive License

Record date: 20130927

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111026

Termination date: 20150331

EXPY Termination of patent right or utility model