CN102039477A - Local dry-type welding small-sized drainage device - Google Patents

Local dry-type welding small-sized drainage device Download PDF

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Publication number
CN102039477A
CN102039477A CN2009101811510A CN200910181151A CN102039477A CN 102039477 A CN102039477 A CN 102039477A CN 2009101811510 A CN2009101811510 A CN 2009101811510A CN 200910181151 A CN200910181151 A CN 200910181151A CN 102039477 A CN102039477 A CN 102039477A
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China
Prior art keywords
cover
draining
sponge
infiltration
drainage
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CN2009101811510A
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Chinese (zh)
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CN102039477B (en
Inventor
薛龙
曹莹瑜
赵杰
曹俊芳
吕涛
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Beijing Institute of Petrochemical Technology
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Beijing Institute of Petrochemical Technology
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Priority to CN200910181151.0A priority Critical patent/CN102039477B/en
Publication of CN102039477A publication Critical patent/CN102039477A/en
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Publication of CN102039477B publication Critical patent/CN102039477B/en
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Abstract

The invention relates to a local dry-type welding small-sized drainage device which mainly comprises a drainage hood body (1), a small-sized soldering gun (2) and a miniature underwater welding optical fiber sight glass (3), wherein the drainage hood body (1) mainly comprises a hood body upper end cover (10), a locking sleeve (11), a water seepage sleeve (12) and a lower end cover (13), the mall-sized soldering gun (2), and the miniature underwater welding optical fiber sight glass (3) and a high-pressure gas filter (4) are arranged in the drainage hood body (1). In the invention, sponge can always keep moist in the welding process by high-pressure water column poured into the water seepage sleeve to fulfill the function of protecting the sponge; the drainage hood body (1) is arranged underwater above drainage sponge (15) and is sleeved with a sealing sleeve (14), high-pressure gas is led into the body, water is drained through the drainage sponge (15), and then, underwater local dry-type welding can be carried out. The invention has the advantages of simple structure, stable and reliable work, low cost, easy popularization and simple use, maintenance and repair.

Description

Local dry-type welds small-sized drainage arrangement
Technical field
The present invention relates to a kind of welder under water, realize that especially local dry-type welds small-sized drainage arrangement under water.
Background technology
The present under-water welding water device that runs in can make to produce local a no aqua region under water when welding between two electrodes of welding gun, creates the environment that welds in the similar air, becomes wet method and is welded as local dry cavity and welds, thereby weldquality is improved greatly.But present similar products both domestic and external exist in the welding process drainage effect bad, can not when welding, carry out process monitoring, or monitoring equipment is comparatively complicated and huge shortcoming, makes whole drainage arrangement complex structure, volume bigger, and is very not convenient in the use.
Summary of the invention
According to background technology, the objective of the invention is to overcome existing similar products and can not when welding, carry out process monitoring, or monitoring equipment is comparatively complicated and huge shortcoming, provide a kind of by draining cover body, midget with miniaturely weld under water that the optical fiber sight glass forms, midget and miniaturely weld the top that the optical fiber sight glass is installed in the draining cover body under water, the drainage cover bottom is equipped with the underwater sealing device, form the gas that allows in the cover and discharge, weld small-sized drainage arrangement but the outer water of cover can not enter the local dry-type of weld zone.
To achieve these goals, the present invention is achieved through the following technical solutions:
A kind of local dry-type welds small-sized drainage arrangement, mainly by draining cover body (1), midget (2) and the miniature optical fiber sight glass (3) that welds are under water formed, wherein: draining cover body (1) is mainly by upper end cover (10), lock sleeve (11), infiltration cover (12), bottom end cover (13), sealing shroud (14) and draining sponge (15) are formed, lock sleeve (11) upper and lower side respectively with upper end cover (10), bottom end cover (13) is spirally connected and sealing ring (16) is installed, inner chamber at lock sleeve (11) embeds an infiltration cover (12), infiltration cover (12) is connected with upper end cover (10), in bottom end cover (13), the below of lock sleeve (11) and infiltration cover (12) embeds draining sponge (15), and draining sponge (15) is bonded together with it, overlap one deck sealing shroud (14) around draining sponge (15), cover body (1) and workpiece to be welded (17) form an airtight space under water; Go up boring at upper end cover (10) and infiltration cover (12), welding gun hole (21) is used for being connected and fixed midget (2) in draining cover body (1), the air filter (4) that connects gases at high pressure by high pressure gas body opening (20), insert the miniature optical fiber sight glass (3) that welds under water by sight glass hole (22), and seal respectively with upper end cover (10), around its air filter (4) is filter screen, and the lower end is an entity.
Connecting hole (18) and water jets under high pressure hole (19) are set on the described cover body upper end cover (10), and water jets under high pressure hole (19) communicate with the slit that lock sleeve (11) and infiltration are overlapped between (12).
Correct position on the described upper end cover (10) is provided with welding robot human body's connecting hole.
Because adopt technique scheme, the present invention has the following advantages and effect:
1, the present invention is simple in structure, and cost is lower, is easy to promote;
2, the present invention welds the optical fiber sight glass under water because of adopting miniature welding gun and type, thereby the cover body inside dimension is reduced greatly, not only makes to be beneficial to more with welding robot to be used, and has shortened greatly and discharged the cover body required time of maritime interior waters.
3, the miniature advantages such as the optical fiber sight glass has the resolution ratio height, speed is strong, the visual field is big, volume is little, operation is light and handy, long service life of welding under water of the present invention's employing, miniature weld under water the optical fiber sight glass integrated the visiting light source, may ultimately reach the purpose of welding situation in the long-range clear observation cover body.
4, the present invention adopts the mode of upper end infiltration, and it is moistening to remain cavernous body, can prevent the carrying out along with welding, the scaling loss cavernous body, and make water inlet in the cover body.
Description of drawings
Fig. 1 is a structure collectivity schematic perspective view of the present invention
The specific embodiment
Illustrate by Fig. 1, a kind of local dry-type welds small-sized drainage arrangement, mainly by draining cover body 1, midget 2 and the miniature optical fiber sight glass 3 that welds are under water formed, wherein: draining cover body 1 is mainly by upper end cover 10, lock sleeve 11, infiltration cover 12, bottom end cover 13, sealing shroud 14 and draining sponge 15 are formed, lock sleeve 11 upper and lower sides respectively with upper end cover 10, bottom end cover 13 is spirally connected and sealing ring 16 is installed, inner chamber at lock sleeve 11 embeds an infiltration cover 12, infiltration cover 12 is connected with upper end cover 10, at bottom end cover 13, the below of lock sleeve 11 and infiltration cover 12 embeds draining sponge 15, and draining sponge 15 is bonded together with it, overlap one deck sealing shroud 14 around draining sponge 15, cover body 1 and workpiece to be welded 17 form an airtight space under water; Boring on upper end cover 10 and infiltration cover 12, welding gun hole 21 is used for being connected and fixed midget 2 in draining cover body 1, the air filter 4 that connects gases at high pressure by high pressure gas body opening 20, insert the miniature optical fiber sight glass 3 that welds under water by sight glass hole 22, and seal respectively with upper end cover 10, around its air filter 4 is filter screen, and the lower end is an entity.
Other knows, be filter screen around the air filter 4, and the lower surface is an entity, gases at high pressure are injected after filter screen is broken up the back from discharging all around, and directly do not inject from the bottom, make gas in cover, form circulation like this, avoid the direct injection of gases at high pressure and electric arc is produced disturbance.
On cover body upper end cover 10, also be provided with connecting hole 18 and water jets under high pressure hole 19, can go into slit between lock sleeve 11 and the infiltration cover 12 along orifice flow through the seawater of pressurization, directly arrive draining sponge 15 from the upper end, prevent to make in the cover body and intake along with the carrying out scaling loss cavernous body 15 of welding.
Specific implementation process is as follows: make draining cavernous body 15 compress workpiece 17 to be welded after drainage cover 1 entry, make cover body 1 form a confined space under water, inject gases at high pressure then, seawater is forced out between cavernous body 15 and workpiece 17, utilize humidity detector to detect striking welding when reaching the striking condition in the confined space.During welding, electric arc is in cover body 1 internal combustion, and the steam when gas that solder wire material self is produced and water vapor is more and more, pressure in the cover body 1 is increasing, and at this moment, cavernous body 15 has played the effect of " check valve ", unnecessary gas in the cover body 1 is discharged, and seawater can not enter; Moreover, miniature weld under water optical fiber sight glass 3 integrated the visiting light source, may ultimately reach the purpose of welding situation in the long-range clear observation cover body, thereby reached the purpose of local dry-type welding.

Claims (3)

1. a local dry-type welds small-sized drainage arrangement, mainly by draining cover body (1), midget (2) and the miniature optical fiber sight glass (3) that welds are under water formed, it is characterized in that: draining cover body (1) is mainly by upper end cover (10), lock sleeve (11), infiltration cover (12), bottom end cover (13), sealing shroud (14) and draining sponge (15) are formed, lock sleeve (11) upper and lower side respectively with upper end cover (10), bottom end cover (13) is spirally connected and sealing ring (16) is installed, inner chamber at lock sleeve (11) embeds an infiltration cover (12), infiltration cover (12) is connected with upper end cover (10), in bottom end cover (13), the below of lock sleeve (11) and infiltration cover (12) embeds draining sponge (15), and draining sponge (15) is bonded together with it, overlap one deck sealing shroud (14) around draining sponge (15), cover body (1) and workpiece to be welded (17) form an airtight space under water; Go up boring at upper end cover (10) and infiltration cover (12), welding gun hole (21) is used for being connected and fixed midget (2) in draining cover body (1), the air filter (4) that connects gases at high pressure by high pressure gas body opening (20), insert the miniature optical fiber sight glass (3) that welds under water by sight glass hole (22), and seal respectively with upper end cover (10), around its air filter (4) is filter screen, and the lower end is an entity.
2. local dry-type according to claim 1 welds small-sized drainage arrangement, it is characterized in that: connecting hole (18) and water jets under high pressure hole (19) are set on the described cover body upper end cover (10), and water jets under high pressure hole (19) communicate with the slit that lock sleeve (11) and infiltration are overlapped between (12).
3. local dry-type according to claim 1 welds small-sized drainage arrangement, it is characterized in that: the correct position on the described upper end cover (10) is provided with welding robot human body's connecting hole.
CN200910181151.0A 2009-10-13 2009-10-13 Local dry-type welding small-sized drainage device Active CN102039477B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910181151.0A CN102039477B (en) 2009-10-13 2009-10-13 Local dry-type welding small-sized drainage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910181151.0A CN102039477B (en) 2009-10-13 2009-10-13 Local dry-type welding small-sized drainage device

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CN102039477A true CN102039477A (en) 2011-05-04
CN102039477B CN102039477B (en) 2014-07-02

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433606A (en) * 2013-08-19 2013-12-11 天津大学 Special portable miniature drainage cover for automatic underwater local dry-method welding
CN103586565A (en) * 2013-11-04 2014-02-19 哈尔滨工业大学(威海) Underwater wet welding tracking system based on active vision
CN104722973A (en) * 2015-02-03 2015-06-24 华南理工大学 Local dry type drainage device for underwater welding robot and drainage method thereof
CN105014234A (en) * 2014-04-25 2015-11-04 天津大学 Underwater friction stitch welding local dry method small draining device
CN109047988A (en) * 2018-09-29 2018-12-21 中国化学工程第六建设有限公司 Welding method in high humidity environment
CN109676288A (en) * 2019-01-14 2019-04-26 天津大学 A kind of method of three layers of drainage cover of underwater local dry cavity low-pressure welding and acquisition low pressure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2912993B2 (en) * 1993-11-12 1999-06-28 株式会社日立製作所 Underwater processing equipment
US5981896A (en) * 1998-08-26 1999-11-09 Electric Power Research Institute, Inc. Apparatus and method for creating dry underwater welds
CN101244498B (en) * 2007-02-16 2011-05-11 北京石油化工学院 Partial dry type automatic welding drainage arrangement
CN101254563B (en) * 2008-02-20 2011-01-26 中国人民解放军91872部队上海研究室 Portable underwater dry-type welding device
CN201543956U (en) * 2009-10-13 2010-08-11 北京石油化工学院 Small-sized draining device for local dry type welding

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433606A (en) * 2013-08-19 2013-12-11 天津大学 Special portable miniature drainage cover for automatic underwater local dry-method welding
CN103433606B (en) * 2013-08-19 2016-03-02 天津大学 The special Mini drain cap of portable underwater local dry cavity automatic welding
CN103586565A (en) * 2013-11-04 2014-02-19 哈尔滨工业大学(威海) Underwater wet welding tracking system based on active vision
CN105014234A (en) * 2014-04-25 2015-11-04 天津大学 Underwater friction stitch welding local dry method small draining device
CN104722973A (en) * 2015-02-03 2015-06-24 华南理工大学 Local dry type drainage device for underwater welding robot and drainage method thereof
CN104722973B (en) * 2015-02-03 2016-10-05 华南理工大学 A kind of Underwater Welding robot local dry-type drainage arrangement and water discharge method thereof
CN109047988A (en) * 2018-09-29 2018-12-21 中国化学工程第六建设有限公司 Welding method in high humidity environment
CN109047988B (en) * 2018-09-29 2021-01-26 中国化学工程第六建设有限公司 Welding method in high humidity environment
CN109676288A (en) * 2019-01-14 2019-04-26 天津大学 A kind of method of three layers of drainage cover of underwater local dry cavity low-pressure welding and acquisition low pressure
CN109676288B (en) * 2019-01-14 2021-05-14 天津大学 Underwater local dry low-pressure welding three-layer drainage cover and method for obtaining low pressure

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