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CN200981149Y - Underwater high-voltage welding power supplying device - Google Patents

Underwater high-voltage welding power supplying device Download PDF

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Publication number
CN200981149Y
CN200981149Y CN 200620119341 CN200620119341U CN200981149Y CN 200981149 Y CN200981149 Y CN 200981149Y CN 200620119341 CN200620119341 CN 200620119341 CN 200620119341 U CN200620119341 U CN 200620119341U CN 200981149 Y CN200981149 Y CN 200981149Y
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China
Prior art keywords
welding
cable
power supply
voltage
underwater
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Expired - Lifetime
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CN 200620119341
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Chinese (zh)
Inventor
焦向东
房晓明
俞建荣
周灿丰
罗建
朱加雷
蒲雨龙
马洪新
高峰
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China National Offshore Oil Corp CNOOC
Beijing Institute of Petrochemical Technology
Offshore Oil Engineering Co Ltd
Original Assignee
China National Offshore Oil Corp CNOOC
Beijing Institute of Petrochemical Technology
Offshore Oil Engineering Co Ltd
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Priority to CN 200620119341 priority Critical patent/CN200981149Y/en
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Publication of CN200981149Y publication Critical patent/CN200981149Y/en
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Abstract

本实用新型公开了一种水下高压焊接供电装置,它包括有:一高压焊接电源;一脐带管,其内部设置有焊接电缆容置槽以及焊接电缆固定装置,该脐带管的一端与高压焊接电源连接,另一端则设置有一电缆转接件;高压焊接电源的焊接电缆容置于所述焊接电缆容置槽中,并经焊接电缆固定装置固定,且该焊接电缆与电缆转接件连接。本实用新型的高压焊接电源能够保证高压焊接试验正常的引弧,并能够在引弧成功后切换到正常的焊接状态,提供一定的弧压范围,具有弧压控制功能;本实用新型脐带管的设计,使电缆能够基本上满足水深60m,实际长度120m的压降要求,并具有良好的绝缘和防水性能,具有较强的抗拉能力。

Figure 200620119341

The utility model discloses an underwater high-voltage welding power supply device, which comprises: a high-voltage welding power supply; The power supply is connected, and the other end is provided with a cable adapter; the welding cable of the high-voltage welding power supply is accommodated in the welding cable accommodating groove, and is fixed by the welding cable fixing device, and the welding cable is connected with the cable adapter. The high-voltage welding power supply of the utility model can ensure the normal arc striking of the high-voltage welding test, and can switch to the normal welding state after the arc striking is successful, provides a certain range of arc voltage, and has the function of arc voltage control; the umbilical cord of the utility model Design, so that the cable can basically meet the pressure drop requirements of 60m in water depth and 120m in actual length, and has good insulation and waterproof performance, and has strong tensile capacity.

Figure 200620119341

Description

A kind of power supplying device for underwater weld in high pressure
Technical field
The utility model relates to electric supply installation, particularly relates to a kind of power supplying device for underwater weld in high pressure.This device can be applicable to underwater dry-type high pressure weld job, can be to realizing efficient striking, normal welding in the high undersea hydrostatic pressures experimental cabin; Can provide good support and protection to equipment such as welding cable, protection tracheaes.
Background technology
For the high undersea hydrostatic pressures dry method welding, the principal element that influences welding quality is the welding depth of water and a corresponding environmental pressure, and humidity and rugged environment.Cooling and deep-water pressure effect because of water, arc characteristic, current density, arc temperature and arc stability etc. are with land completely different, the contraction of the contraction of welding arc and weld pool surface cathode arc root, form one or several cathode protection and corresponding plasma jet, produce bigger electric arc repulsive force, molten drop is big and contact with the big molten bath of surface undulation easily.For the high-pressure dry process welding, used cable is generally long, and the cable pressure drop is apparent in view, and because the environment of welding uniqueness under water, cable is in the middle of the moist relatively environment always, and the pulling force of suffered deadweight is also bigger.Weld various cables and tracheae quantity is many, as directly being placed in the middle of the seawater, relative position separately is difficult for fixing, and because be subjected to the effect of seawater, can reduction of service life and be unfavorable for handling safety.
The utility model content
The purpose of this utility model provides a kind of underwater dry-type high pressure weld job that can be applicable to, can be to realizing the power supplying device for underwater weld in high pressure of efficient striking, normal welding in the high undersea hydrostatic pressures experimental cabin.
For achieving the above object, the utility model is taked technical scheme: a kind of power supplying device for underwater weld in high pressure, and it includes: a high pressure source of welding current; One umbilical duct, its inside are provided with welding cable storage tank and welding cable fixture, and an end of this umbilical duct is connected with the high pressure source of welding current, and the other end then is provided with a cable adapter; The welding cable of the high pressure source of welding current is placed in the described welding cable storage tank, and fixes through the welding cable fixture, and this welding cable is connected with cable adapter.
In practical operation, the described high pressure source of welding current includes a main power source and a serial connection power supply.This main power source and serial connection power supply all can be selected PNE21-400P type power supply for use.
In the above-mentioned power supplying device for underwater weld in high pressure, described welding cable includes two root beads and connects current cable, two protection gas cables and a control signal cable, and the corresponding above-mentioned welding cable of described umbilical duct is provided with the welding cable storage tank.In addition, described umbilical duct also is provided with welding cable storage tank headspace.And the skin of described control signal cable is provided with a screen layer, and this screen layer is a polytetrafluoroethylene film.
In the above-mentioned power supplying device for underwater weld in high pressure, described cable adapter is the metal parts of a headband annulus, annulus one end is connected an end of easy underwater welding chamber snap joint, and an end relative with annulus connects welding cable, and the wire that compresses welding cable by sheet metal is fixed.
The utility model is owing to take above design, and it has the following advantages:
1, the high pressure source of welding current of the present utility model can guarantee the normal striking of high pressure soldering test, and can switch to normal welded condition after the striking success, and certain arc voltage scope is provided, and has arc voltage control function.
2, the design of the utility model umbilical duct makes cable can satisfy depth of water 60m basically, the pressure drop requirement of physical length 120m, and have good insulation performance and water resistance, have stronger resistance to tension.
3, the signal controlling cable in the utility model has adopted the screen layer measure, has good antijamming capability, also has good insulation water resistance and tensile property simultaneously.
4, the umbilical duct in the utility model; can form shielding to seawater well; effectively alleviate the influence of seawater to cable and tracheae; well the position of cable, tracheae is fixed; and effectively reduced the gravity that cable is born self, for the welded attachment of umbilical duct inside provides good protection.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a source of welding current schematic diagram of the present utility model.
Fig. 3 is the tangent plane schematic diagram of the umbilical duct in the utility model.
Fig. 4 is the structural representation of cable adapter in the utility model
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, be a kind of power supplying device for underwater weld in high pressure disclosed in the utility model, it includes:
The one high pressure source of welding current 1;
One umbilical duct 2, its inside are provided with welding cable storage tank 21 and welding cable fixture 22, and an end of this umbilical duct 2 is connected with the high pressure source of welding current 1, and the other end then is provided with a cable adapter 23;
The welding cable 10 of the high pressure source of welding current 1 is placed in the welding cable storage tank 21, and fixes through the welding cable fixture, and welding cable 10 is connected with cable adapter 23.
Among Fig. 1,330 is control cabinet, and 331 is manual control box, and 332 is welding tractor, and 333 is pipeline, and 334 is the underwater dry-type cabin.Among Fig. 2,336,337 is switch, and 332 is welding tractor, and 340 is welding torch, and 338 are the protection tracheae, and 339 is workpiece, and 334 is the underwater dry-type cabin.
The utility model is in concrete enforcement, and the high pressure source of welding current 1 includes a main power source 11 and a serial connection power supply 12.Main power source 11 and serial connection power supply 12 all can be selected PNE21-400P type power supply for use, perhaps select the close power supply of performance with it.Use main power source 11 separately in the situation that main power source 11 can meet the demands, and if could not satisfy would add the serial connection power supply 12 meet the demands.In the striking stage, in order to raise floating voltage, can consider to make two power supplys to work simultaneously, this moment, striking voltage was two power source voltage sums.Through after a while, striking finishes, the blow-out phenomenon that cause for fear of directly being connected in series power supply 12 shutoffs this moment, can be earlier with serial connection power supply 12 during by original striking the higher voltage gear be transferred to a lower voltage gear, after stablizing after a while, to be connected in series power supply 12 again and turn off, and provide normal when welding required voltage separately, and finish until welding by main power source 11.
Cooperate shown in Figure 3; above-mentioned welding cable 10 includes two root beads and connects current cable 13, two protection gas cables 14 and a control signal cable 15; umbilical duct 2 corresponding welding cables 10 are provided with welding cable storage tank 21; current cable 13, protection gas cable 14 and control signal cable 15 are placed in respectively in its corresponding cable storage tank 21; and fixed by cable fixture; the structure of this cable fixture adopts traditional technique for fixing, does not move in the cable storage tank 21 to guarantee that welding cable 10 is fixed.
Above-mentioned umbilical duct 2 is according to using a welding machine design, should occasion for some, have more welding machine, and therefore, also umbilical duct 2 is provided with welding cable storage tank headspace 22 especially; Like this, when using more welding machine, can directly offer new welding cable storage tank 21, to adapt to the requirement of more welding machines at welding cable storage tank headspace 22 places.
In the present embodiment, for the control signal that guarantees motor is not disturbed by heavy current, the skin at control signal cable 15 is provided with a screen layer 16 especially, specifically, this screen layer can be selected polytetrafluoroethylene film for use, but not as limit, can select the screen layer with identical function for use equally.
Cooperate shown in Figure 4, in the present embodiment, above-mentioned cable adapter 23 is the metal parts of a headband annulus, and annulus one end is connected an end of easy underwater welding chamber snap joint, an end relative with annulus connects welding cable, and the wire that compresses welding cable by sheet metal is fixed.

Claims (9)

1、一种水下高压焊接供电装置,其特征在于,它包括有:1. An underwater high-voltage welding power supply device, characterized in that it includes: 一高压焊接电源;A high-voltage welding power source; 一脐带管,其内部设置有焊接电缆容置槽以及焊接电缆固定装置,该脐带管的一端与高压焊接电源连接,另一端则设置有一电缆转接件;An umbilical pipe, which is provided with a welding cable accommodation tank and a welding cable fixing device, one end of the umbilical pipe is connected to a high-voltage welding power supply, and the other end is provided with a cable adapter; 高压焊接电源的焊接电缆容置于所述焊接电缆容置槽中,并经焊接电缆固定装置固定,且该焊接电缆与电缆转接件连接。The welding cable of the high-voltage welding power source is accommodated in the welding cable accommodation groove and fixed by the welding cable fixing device, and the welding cable is connected with the cable adapter. 2、根据权利要求1所述的水下高压焊接供电装置,其特征在于:所述高压焊接电源包括有一主电源以及一串接电源。2. The underwater high-voltage welding power supply device according to claim 1, wherein the high-voltage welding power supply includes a main power supply and a series connection power supply. 3、根据权利要求2所述的水下高压焊接供电装置,其特征在于:所述主电源及串接电源均选用PNE21-400P型电源。3. The underwater high-voltage welding power supply device according to claim 2, characterized in that: both the main power supply and the serial power supply are PNE21-400P power supplies. 4、根据权利要求1或2或3所述的水下高压焊接供电装置,其特征在于:所述焊接电缆包括有两根焊接电流电缆、两根保护气缆以及一根控制信号电缆,所述脐带管对应上述焊接电缆设置有焊接电缆容置槽。4. The underwater high-voltage welding power supply device according to claim 1, 2 or 3, characterized in that: the welding cable includes two welding current cables, two shielding gas cables and a control signal cable, the The umbilical cord is provided with a welding cable accommodation groove corresponding to the above welding cables. 5、根据权利要求4所述的水下高压焊接供电装置,其特征在于:所述脐带管还设置有焊接电缆容置槽预留空间。5. The underwater high-voltage welding power supply device according to claim 4, characterized in that: the umbilical is also provided with a reserved space for a welding cable accommodating groove. 6、根据权利要求4所述的水下高压焊接供电装置,其特征在于:所述控制信号电缆的外层设置有一屏蔽层,该屏蔽层为聚四氟乙烯薄膜。6. The underwater high-voltage welding power supply device according to claim 4, characterized in that: the outer layer of the control signal cable is provided with a shielding layer, and the shielding layer is a polytetrafluoroethylene film. 7、根据权利要求5所述的水下高压焊接供电装置,其特征在于:所述控制信号电缆的外层设置有一屏蔽层,该屏蔽层为聚四氟乙烯薄膜。7. The underwater high-voltage welding power supply device according to claim 5, characterized in that: the outer layer of the control signal cable is provided with a shielding layer, and the shielding layer is a polytetrafluoroethylene film. 8、根据权利要求1或2或3或5或6或7所述的水下高压焊接供电装置,其特征在于:所述电缆转接件为一头带圆环的金属部件,圆环一端连接在水下焊接舱快速接头的一端,与圆环相对的一端连接焊接电缆,通过金属片压紧焊接电缆的金属丝予以固定。8. The underwater high-voltage welding power supply device according to claim 1 or 2 or 3 or 5 or 6 or 7, characterized in that: the cable adapter is a metal part with a ring at one end, and one end of the ring is connected to the One end of the quick connector of the underwater welding cabin is connected to the welding cable at the opposite end of the ring, and the metal sheet is pressed against the wire of the welding cable to fix it. 9、根据权利要求4所述的水下高压焊接供电装置,其特征在于:所述电缆转接件为一头带圆环的金属部件,圆环一端连接在水下焊接舱快速接头的一端,与圆环相对的一端连接焊接电缆,通过金属片压紧焊接电缆的金属丝予以固定。9. The underwater high-voltage welding power supply device according to claim 4, characterized in that: the cable adapter is a metal part with a ring at one end, one end of the ring is connected to one end of the quick connector of the underwater welding cabin, and The opposite end of the ring is connected to the welding cable, and the metal sheet is pressed against the wire of the welding cable to fix it.
CN 200620119341 2006-08-29 2006-08-29 Underwater high-voltage welding power supplying device Expired - Lifetime CN200981149Y (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103043194A (en) * 2013-01-06 2013-04-17 中铁隧道集团有限公司 Manned training test chamber and test method for dry welding in hyperbaric environment
CN104858530A (en) * 2015-06-10 2015-08-26 青岛哈工海洋工程技术有限公司 Method for transmitting welding current in long distance
CN105108286A (en) * 2015-09-09 2015-12-02 江苏诚超铝业有限公司 Welding apparatus of gas metal arc welding under super-gravity environment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103043194A (en) * 2013-01-06 2013-04-17 中铁隧道集团有限公司 Manned training test chamber and test method for dry welding in hyperbaric environment
CN103043194B (en) * 2013-01-06 2015-04-22 中铁隧道集团有限公司 Manned training test chamber and test method for dry welding in hyperbaric environment
CN104858530A (en) * 2015-06-10 2015-08-26 青岛哈工海洋工程技术有限公司 Method for transmitting welding current in long distance
CN104858530B (en) * 2015-06-10 2016-06-08 青岛哈工海洋工程技术有限公司 A kind of method of long range propagation welding current
CN105108286A (en) * 2015-09-09 2015-12-02 江苏诚超铝业有限公司 Welding apparatus of gas metal arc welding under super-gravity environment

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AV01 Patent right actively abandoned

Effective date of abandoning: 20060829

C25 Abandonment of patent right or utility model to avoid double patenting