CN109273328A - A kind of installation method of explosion-protection equipment - Google Patents

A kind of installation method of explosion-protection equipment Download PDF

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Publication number
CN109273328A
CN109273328A CN201710585972.5A CN201710585972A CN109273328A CN 109273328 A CN109273328 A CN 109273328A CN 201710585972 A CN201710585972 A CN 201710585972A CN 109273328 A CN109273328 A CN 109273328A
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CN
China
Prior art keywords
explosion
protection equipment
welding
rupture disk
installation method
Prior art date
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Granted
Application number
CN201710585972.5A
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Chinese (zh)
Other versions
CN109273328B (en
Inventor
张红恩
许海超
张海
林生军
乔会杰
李宝增
许东杰
司晓闯
王亚祥
李新刚
宋继光
尹世献
李凯
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.)
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Original Assignee
State Grid Corp of China SGCC
Pinggao Group Co Ltd
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Publication date
Application filed by State Grid Corp of China SGCC, Pinggao Group Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201710585972.5A priority Critical patent/CN109273328B/en
Publication of CN109273328A publication Critical patent/CN109273328A/en
Application granted granted Critical
Publication of CN109273328B publication Critical patent/CN109273328B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02Housings; Casings; Bases; Mountings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52Cooling of switch parts

Landscapes

  • Laser Beam Processing (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The present invention relates to a kind of installation methods of explosion-protection equipment; this installation method connects explosion-protection equipment and workpiece using welding procedure; realize sealing performance; cooling medium is poured at explosion rupture disk; the mode that cooling medium can absorb the logical heat transfer of the heat generated when welding is transmitted to the temperature in explosion rupture disk; so that the temperature of explosion rupture disk is lower than its critical-temperature that can bear, the explosion-proof performance of explosion rupture disk is protected with this.

Description

A kind of installation method of explosion-protection equipment
Technical field
The present invention relates to a kind of installation method of explosion-protection equipment more particularly to the installation methods of breaker explosion-protection equipment.
Background technique
Breaker is a kind of Protector for electric appliances with the multiple protection functions such as overcurrent, short circuit, electric leakage, under-voltage, overheat. Not only structure is complicated for most of breakers, performance reliability is poor, but also shell is usually the plastic housing of non-tight, it is difficult to meet Explosion-proof, dust-proof, waterproof specific demand.Therefore explosion-protection equipment is all installed additional on the breaker that domestic enterprise uses, and traditional is explosion-proof Device includes tubular shell, and one end of tubular shell is equipped with connecting flange, and connecting flange with breaker for connecting, connecting flange The joint face connecting with breaker is equipped with sealing ring.This explosion-protection equipment when in use, when due to circuit breaker internal power on/off There are a large amount of fevers, temperature is higher, will lead to sealing ring aging, loss of seal effect after a period of use.
Recently there is a kind of novel explosion-protection equipment to occur in the market, mainly include tubular shell, explosion rupture disk is mounted on cylinder In shape shell, one end outer peripheral surface of tubular shell is equipped with welding groove, and this explosion-protection equipment is connect by welding with breaker And realize hermetic seal.However, often will cause when by tubular shell welding on-board the circuit breaker due to the thinner thickness of explosion rupture disk Welding heat is transmitted in explosion rupture disk and then the structure property of explosion rupture disk is caused to change, and directly affects the resistance to pressure of explosion rupture disk Energy.Therefore, the installation of this explosion-protection equipment just becomes the puzzlement of assembly crewman.
Summary of the invention
The purpose of the present invention is to provide a kind of installation method of explosion-protection equipment, solve on breaker through the side of welding The problem of method installs explosion-protection equipment, increases explosion rupture disk temperature, and structure property changes, and reduces explosion rupture disk pressure resistance performance.
To achieve the above object, the technical solution of the installation method of explosion-protection equipment of the present invention is: a kind of peace of explosion-protection equipment Dress method, workpiece are aligned with explosion-protection equipment and pass through welded connecting, and cooling is added in the explosion rupture disk in welding in explosion-protection equipment Medium.
Further, the cooling medium is cooling water.
Further, explosion rupture disk is completely covered in the cooling water.
Further, the welding method is laser welding.
Further, the technological parameter of the laser welding are as follows: focal length 300mm, defocusing amount+60mm, power 2500W, light Spot diameter 3mm, speed of welding 1.5m/min.
The beneficial effects of the present invention are: in connection explosion-protection equipment by welding and workpiece, in explosion-protection equipment Cooling medium is poured into explosion rupture disk, cooling medium can absorb the energy passed in welding by explosion-protection equipment shell, Without increasing the temperature of explosion rupture disk too much, to guarantee that explosion rupture disk structure property is intact.Improve product quality and competition Power reduces production cost.
Further, cooling medium uses cooling water, has saved cost, and do not pollute the environment.
Further, explosion rupture disk is completely covered in the cooling water, can preferably absorb and to pass in welding process Energy.
Further, keep the deformation of welded part and protective casing minimum using laser welding, and the weld seam after welding Almost without gap, the intensity of good seal performance, and weld seam is much larger than explosion-proof pressure.
Detailed description of the invention
Fig. 1 is that explosion-protection equipment of the invention welds schematic diagram;
Fig. 2 is explosion-protection equipment top view of the invention;
Fig. 3 is the sectional view of explosion-protection equipment main view of the invention.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment one of the installation method of explosion-protection equipment of the invention, as shown in Figure 1 to Figure 3, explosion-protection equipment 7 includes The bottom end of protective casing 3 is arranged in protective casing 3 and explosion rupture disk 6, explosion rupture disk 6, and distance is external farther out, since explosion rupture disk 6 is relatively thin, It is set to be not readily susceptible to accidentally touch and cause deformation or damage to it.There is cooling water 4 in the upper end of explosion rupture disk 6, and cooling water 4 can be inhaled The energy passed over from protective casing 3 when welding is received, and subtracts the energy being transmitted in explosion rupture disk 6 by protective casing 3 It is few, therefore the temperature of explosion rupture disk 6 will not increase too much.One end on protective casing 3 far from explosion rupture disk 6 is equipped with step 8, step 8 can match with workpiece 5, facilitate the welding of workpiece 5 Yu explosion-protection equipment 7, and step 8 makes in one end far from explosion rupture disk 6 The distance conducted heat on protective casing 3 when welding is longer, the more difficult raising of the temperature of explosion rupture disk 6, to protect in welding Explosion rupture disk 6.
It is first that 5 removing surface of workpiece is clean specifically, in embodiment, then using tooling make the inner headed face of workpiece 5 with The step 8 of protective casing 3 is fixed together, and pours into cooling water 4 in the explosion rupture disk 6 in explosion-protection equipment 7, finally carries out Laser Welding It connects, laser welding process parameter are as follows: focal length 300mm, defocusing amount+60mm, power 2500W, spot diameter 3mm, speed of welding 1.5m/min, perpendicular to the junction of workpiece 5 and step 8, the weld seam 2 after the completion of welding almost do not have the laser beam 1 that laser issues There is gap, ensure that the air-tightness of explosion-protection equipment 7, and the intensity of weld seam 2 is much larger than explosion-proof pressure.Complete welding explosion rupture disk and Cooling water temperature is about 25 DEG C, is far below explosion temperature, explosion rupture disk is intact.
The embodiment two of the installation method of explosion-protection equipment of the invention: with embodiment one the difference is that, it is described cold But medium is coolant liquid.
The embodiment three of the installation method of explosion-protection equipment of the invention: with embodiment one the difference is that, the weldering Connecing mode is electron beam welding.
When the installation method of explosion-protection equipment of the invention connects explosion-protection equipment and workpiece by welding, in explosion-proof dress Cooling medium is poured into the explosion rupture disk set, cooling medium can absorb the energy passed in welding by explosion-protection equipment shell Amount, it is too many without increasing the temperature of explosion rupture disk, to guarantee that explosion rupture disk structure property is intact.

Claims (5)

1. a kind of installation method of explosion-protection equipment, it is characterised in that: workpiece is aligned with explosion-protection equipment and passes through welded connecting, is welding Cooling medium is added in explosion rupture disk when connecing in explosion-protection equipment.
2. the installation method of explosion-protection equipment according to claim 1, it is characterised in that: the cooling medium is cooling water.
3. the installation method of explosion-protection equipment according to claim 2, it is characterised in that: the cooling water is completely covered explosion-proof Piece.
4. the installation method of explosion-protection equipment according to claim 1 to 3, it is characterised in that: the welding method For laser welding.
5. the installation method of explosion-protection equipment according to claim 4, it is characterised in that: the technological parameter of the laser welding Are as follows: focal length 300mm, defocusing amount+60mm, power 2500W, spot diameter 3mm, speed of welding 1.5m/min.
CN201710585972.5A 2017-07-18 2017-07-18 Installation method of explosion-proof device Active CN109273328B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710585972.5A CN109273328B (en) 2017-07-18 2017-07-18 Installation method of explosion-proof device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710585972.5A CN109273328B (en) 2017-07-18 2017-07-18 Installation method of explosion-proof device

Publications (2)

Publication Number Publication Date
CN109273328A true CN109273328A (en) 2019-01-25
CN109273328B CN109273328B (en) 2022-11-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710585972.5A Active CN109273328B (en) 2017-07-18 2017-07-18 Installation method of explosion-proof device

Country Status (1)

Country Link
CN (1) CN109273328B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3103309A1 (en) * 2019-11-19 2021-05-21 Gigavac, Llc SWITCHING DEVICES INCORPORATING A RUPTURE DISC
US11239038B2 (en) 2015-05-18 2022-02-01 Gigavac, Llc Mechanical fuse device
US11387061B2 (en) 2015-05-18 2022-07-12 Gigavac, Llc Passive triggering mechanisms for use with switching devices incorporating pyrotechnic features
US11443910B2 (en) 2019-09-27 2022-09-13 Gigavac, Llc Contact levitation triggering mechanisms for use with switching devices incorporating pyrotechnic features

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU817479A2 (en) * 1979-05-03 1981-03-30 Предприятие П/Я Г-4481 Explosion-proof envelope
CN202094199U (en) * 2011-03-25 2011-12-28 捷锐思(天津)新能源科技有限公司 Safety explosion-proof device for lithium ion power battery
CN202712307U (en) * 2012-08-08 2013-01-30 无锡市金杨新型电源有限公司 Explosion-resistant combined cover of lithium ion battery
CN203908940U (en) * 2014-06-12 2014-10-29 上海申渭电子科技有限公司 Explosion-proof infrared gas sensor
CN204470802U (en) * 2015-02-23 2015-07-15 山东优力重工装备有限公司 End socket gripper shoe Anti-deformation device for welding
CN204757496U (en) * 2015-05-29 2015-11-11 重庆红宇精密工业有限责任公司 Heat exchanger constructional device with water -cooling circulation function
CN105977407A (en) * 2016-06-23 2016-09-28 朱春梅 Explosion-proof housing of battery
CN205718280U (en) * 2016-04-28 2016-11-23 中盐安徽红四方股份有限公司 A kind of rotatory vacuum drying kettle with rupture pressure disc and explosion protection system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU817479A2 (en) * 1979-05-03 1981-03-30 Предприятие П/Я Г-4481 Explosion-proof envelope
CN202094199U (en) * 2011-03-25 2011-12-28 捷锐思(天津)新能源科技有限公司 Safety explosion-proof device for lithium ion power battery
CN202712307U (en) * 2012-08-08 2013-01-30 无锡市金杨新型电源有限公司 Explosion-resistant combined cover of lithium ion battery
CN203908940U (en) * 2014-06-12 2014-10-29 上海申渭电子科技有限公司 Explosion-proof infrared gas sensor
CN204470802U (en) * 2015-02-23 2015-07-15 山东优力重工装备有限公司 End socket gripper shoe Anti-deformation device for welding
CN204757496U (en) * 2015-05-29 2015-11-11 重庆红宇精密工业有限责任公司 Heat exchanger constructional device with water -cooling circulation function
CN205718280U (en) * 2016-04-28 2016-11-23 中盐安徽红四方股份有限公司 A kind of rotatory vacuum drying kettle with rupture pressure disc and explosion protection system
CN105977407A (en) * 2016-06-23 2016-09-28 朱春梅 Explosion-proof housing of battery

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11239038B2 (en) 2015-05-18 2022-02-01 Gigavac, Llc Mechanical fuse device
US11387061B2 (en) 2015-05-18 2022-07-12 Gigavac, Llc Passive triggering mechanisms for use with switching devices incorporating pyrotechnic features
US11443910B2 (en) 2019-09-27 2022-09-13 Gigavac, Llc Contact levitation triggering mechanisms for use with switching devices incorporating pyrotechnic features
FR3103309A1 (en) * 2019-11-19 2021-05-21 Gigavac, Llc SWITCHING DEVICES INCORPORATING A RUPTURE DISC

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