CN206200397U - A kind of special induction installation of pipeline girth weld weld preheating - Google Patents

A kind of special induction installation of pipeline girth weld weld preheating Download PDF

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Publication number
CN206200397U
CN206200397U CN201621178943.4U CN201621178943U CN206200397U CN 206200397 U CN206200397 U CN 206200397U CN 201621178943 U CN201621178943 U CN 201621178943U CN 206200397 U CN206200397 U CN 206200397U
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China
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weld
pipeline girth
epoxy plate
girth weld
induction installation
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CN201621178943.4U
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Chinese (zh)
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朱小明
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NANJING AUTO AUTOMATION Co.,Ltd.
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Nanjing Auto Electric Co Ltd
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Abstract

The utility model discloses a kind of special induction installation of pipeline girth weld weld preheating, including integral type medium frequency induction power supply device, extension cable, temperature detecting unit and sensing heating component, the sensing heating component is attached to pipeline girth weld surface, and the integral type medium frequency induction power supply device is connected by extending cable with the sensing heating component;The temperature detecting unit is arranged between sensing heating component and pipeline girth weld or installed in pipeline girth weld outside, and the temperature detecting unit passes through wire and the integral type medium frequency induction power supply device.The special induction installation of pipeline girth weld weld preheating of the present utility model is broadly divided into the special induction installation of fixed weld preheating and the special induction installation of rotary weld preheating, and various combination is carried out according to operating mode to meet the weld preheating work of different tube diameters, different wall.

Description

A kind of special induction installation of pipeline girth weld weld preheating
Technical field
The utility model is related to pre- heat induction device, specifically a kind of pipeline girth weld weld preheating before a kind of welding Special induction system, belongs to automatic welding equipment technical field.
Background technology
Pipeline girth weld weld preheating is the effective means and approach for improving welding performance and welding quality.Weld preheating, The heat affected area temperature difference can be reduced, improved stress state, reduced cooling velocity, reduce degree of hardening, prevent weld crack.And In existing flame preheating technology, there is that firepower is not concentrated, heated perimeter is small, flame is powerless, inefficiency, cannot be precisely controlled It is all the defect for existing that preheating temperature, combustion gas are controlled unstable etc..
Utility model content
Technical problem to be solved in the utility model is the shortcoming for overcoming prior art, there is provided a kind of peace easy to use Entirely, high efficiency, low energy consumption is applied to different operating modes, different tube diameters, the special sensing of pipeline girth weld weld preheating of different wall Device.
In order to solve the above technical problems, the utility model provides a kind of pipeline girth weld weld preheating special sensing dress Put, including integral type medium frequency induction power supply device, extension cable, temperature detecting unit and sensing heating component, the sensing adds Hot component is attached to pipeline girth weld surface, and the integral type medium frequency induction power supply device is added by extending cable with the sensing Hot component is connected;The temperature detecting unit is arranged between sensing heating component and pipeline girth weld or installed in pipeline boxing Seam outside, the temperature detecting unit passes through wire and the integral type medium frequency induction power supply device.
The utility model further limit technical scheme be:The special sensing dress of foregoing pipeline girth weld weld preheating Put, the sensing heating component is that air cooling heats cable or sensing heating band, and cable or sensing heating band are heated in the air cooling Heat-preservation cotton is coated between pipe fitting weld seam, the temperature of pipe fitting is kept, is conducive to follow-up welding processing.
The foregoing special induction installation of pipeline girth weld weld preheating, the sensing heating component is radius variable formula air cooling Inductor, radius variable formula air cooling inductor it is main by kidney-shaped epoxy plate, the epoxy plate support block with arc groove, double threaded screw, Trip bolt, nut and inductor flexible cable composition, at least four pieces epoxy plate support blocks with arc groove are arranged side by side, institute State the inner side of the epoxy plate support block with arc groove and be laid with the inductor flexible cable, the adjacent two pieces epoxy plate branch with arc groove Connected by kidney-shaped epoxy plate between bracer, the kidney-shaped epoxy plate passes through trip bolt with the epoxy plate support block with arc groove Connected with nut, the kidney-shaped epoxy plate can be relatively rotated with the epoxy plate support block with arc groove centered on attachment screw, A piece support post being made up of the double threaded screw of installation, four are respectively perpendicular at four angles of the upper mounting plate of elevating mechanism The support post top is connected with the sensing heating unit being formed by connecting by the epoxy plate support block with arc groove.
The foregoing special induction installation of pipeline girth weld weld preheating, the temperature detecting unit is infrared radiation thermometer or connects Touch thermocouple, is used to measure whether pipe fitting position while welding temperature meets preheating temperature requirement.
Further, the foregoing special induction installation of pipeline girth weld weld preheating, the infrared radiation thermometer is fixed on pipe On support on the outside of road girth joint, infrared radiation thermometer alignment probe position while welding.
The beneficial effects of the utility model are:The special induction installation of pipeline girth weld weld preheating of the present utility model is main It is divided into the special induction installation of fixed weld preheating and the special induction installation of rotary weld preheating, by integral type Medium frequency induction electricity Source device, air cooling heating cable, extension cable, sensing heating band, the full air cooling inductor of frame-type c-type, infrared radiation thermometer, contact Formula thermocouple, heat-preservation cotton etc. are constituted, and various combination is carried out according to operating mode to meet the weld preheating work of different tube diameters, different wall Make.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model embodiment 1.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the schematic diagram of the utility model embodiment 2.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the schematic diagram of the utility model embodiment 3.
Fig. 6 is the top view of Fig. 5.
Specific embodiment
Embodiment 1
The present embodiment provides a kind of special induction installation of pipeline girth weld weld preheating, and structure as shown in Figure 1 to Figure 2, belongs to In fixed heating cable pre-heating system, by integral type medium frequency induction power supply device 1, contact thermocouple 2, heat-preservation cotton 3, air cooling Heating cable 4, extension cable 5 are constituted.Heat-preservation cotton 3 is wrapped in the welding position of pipe fitting first, air cooling heating cable 4 is wound In heat-preservation cotton 3, then become direct current after medium frequency induction power supply device 1 is by three-phase alternating current electric rectification, then direct current Be changed into adjustable electric current of intermediate frequency, by extend cable 5 be delivered to air cooling heat cable 4 on pipe fitting is generated heat, it is pre- so as to reach The effect of heat, heat-preservation cotton 3 is mainly to maintain the temperature of pipe fitting, and contact thermocouple 2 mainly measures pipe fitting position while welding temperature Whether preheating temperature requirement is met, and the pre-heating system of the present embodiment mainly meets 2 " -12 " path pipe fitting weld seam weld preheatings.
Embodiment 2
The present embodiment provides a kind of special induction installation of pipeline girth weld weld preheating, and structure as shown in Figure 3 to Figure 4, belongs to In fixed heating tape pre-heating system, by integral type medium frequency induction power supply device 1', contact thermocouple 2', heat-preservation cotton 3', sense Heating tape 4', extension cable 5' is answered to constitute.Heat-preservation cotton 3' is wrapped in the welding position of pipe fitting first, sensing heating band 4' is twined It is wound on heat-preservation cotton 3', then becomes direct current after medium frequency induction power supply device 1' is by three-phase alternating current electric rectification, then straight Stream electricity is changed into adjustable electric current of intermediate frequency, sensing heating is delivered to making pipe fitting generate heat on 4' by extending cable 5', so as to reach To the effect of preheating, heat-preservation cotton 3' is mainly to maintain the temperature of pipe fitting, and contact thermocouple 2' is mainly measurement pipe fitting weld seam position Put whether temperature meets preheating temperature requirement.It is preceding pre- that the system of the present embodiment mainly meets the weldering of 12 " -32 " small diameter pipe fitting weld seams Heat.
Embodiment 3
The present embodiment provides a kind of special induction installation of pipeline girth weld weld preheating, and structure as shown in Figure 5 to Figure 6, belongs to In rotary sensing heating pre-heating system, by integral type medium frequency induction power supply device 1'', radius variable formula air cooling inductor 2'', Infrared radiation thermometer 3'', pre-heating system support 4'', extension cable 5'' compositions.Radius variable formula air cooling inductor 2'' is twined first It is wound on pre-heating system support 4'', infrared radiation thermometer 3'' is fixed on pre-heating system support 4'', infrared radiation thermometer 3'' Then alignment position while welding, rotary tube piece becomes direct current after medium frequency induction power supply device 1'' is by three-phase alternating current electric rectification Electricity, then direct current is changed into adjustable electric current of intermediate frequency, it is delivered to radius variable formula air cooling inductor by extending cable 5'' Pipe fitting is set to generate heat on 4'', so as to reach the effect of preheating, infrared radiation thermometer 2'' is mainly measurement pipe fitting position while welding temperature is It is no to meet preheating temperature requirement.The pre-heating system of the present embodiment mainly meets 2 " -32 " small diameter pipe fitting weld seam weld preheatings.
In addition to the implementation, the utility model can also have other embodiment.All use equivalents or equivalent change The technical scheme to be formed is changed, the protection domain of the utility model requirement is all fallen within.

Claims (5)

1. a kind of special induction installation of pipeline girth weld weld preheating, it is characterised in that:Including integral type medium frequency induction power supply dress Put, extend cable, temperature detecting unit and sensing heating component, the sensing heating component is attached to pipeline girth weld surface, The integral type medium frequency induction power supply device is connected by extending cable with the sensing heating component;The temperature detecting unit Between sensing heating component and pipeline girth weld or installed in pipeline girth weld outside, the temperature detecting unit passes through Wire and the integral type medium frequency induction power supply device.
2. the special induction installation of pipeline girth weld weld preheating according to claim 1, it is characterised in that:The sensing adds Hot component is that air cooling heats cable or sensing heating band, is coated between air cooling heating cable or sensing heating band and pipe fitting weld seam Heat-preservation cotton.
3. the special induction installation of pipeline girth weld weld preheating according to claim 1, it is characterised in that:The sensing adds Hot component is radius variable formula air cooling inductor, and radius variable formula air cooling inductor is main by kidney-shaped epoxy plate, with arc groove Epoxy plate support block, double threaded screw, trip bolt, nut and inductor flexible cable composition, at least four pieces described with arc groove Epoxy plate support block is arranged side by side, and the epoxy plate support block inner side with arc groove is laid with the inductor flexible cable, phase Connected by kidney-shaped epoxy plate between adjacent two pieces of epoxy plate support blocks with arc groove, the kidney-shaped epoxy plate and with arc groove Epoxy plate support block is connected by trip bolt and nut, and the kidney-shaped epoxy plate is with the epoxy plate support block with arc groove with even Connect and can relatively rotate centered on screw, installation one is respectively perpendicular by the double end at four angles of the upper mounting plate of elevating mechanism The support post that screw rod is made, four support post tops and the sense being formed by connecting by the epoxy plate support block with arc groove Heating unit is answered to be connected.
4. the special induction installation of pipeline girth weld weld preheating according to claim 1, it is characterised in that:The temperature inspection It is infrared radiation thermometer or contact thermocouple to survey unit.
5. the special induction installation of pipeline girth weld weld preheating according to claim 4, it is characterised in that:The infrared survey Wen Yi is fixed on the support on the outside of pipeline girth weld.
CN201621178943.4U 2016-11-03 2016-11-03 A kind of special induction installation of pipeline girth weld weld preheating Active CN206200397U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621178943.4U CN206200397U (en) 2016-11-03 2016-11-03 A kind of special induction installation of pipeline girth weld weld preheating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621178943.4U CN206200397U (en) 2016-11-03 2016-11-03 A kind of special induction installation of pipeline girth weld weld preheating

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110681966A (en) * 2019-10-18 2020-01-14 中国电建集团山东电力建设第一工程有限公司 Pipeline welding heating device, welding device and method
CN110735023A (en) * 2019-11-06 2020-01-31 中国核工业华兴建设有限公司 single-side preheating and dehydrogenation device with double-layer barrel structure for nuclear power station and processing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110681966A (en) * 2019-10-18 2020-01-14 中国电建集团山东电力建设第一工程有限公司 Pipeline welding heating device, welding device and method
CN110735023A (en) * 2019-11-06 2020-01-31 中国核工业华兴建设有限公司 single-side preheating and dehydrogenation device with double-layer barrel structure for nuclear power station and processing method thereof

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Effective date of registration: 20210302

Address after: No.1, Zhongxing West Road, Lishui Economic and Technological Development Zone, Nanjing, Jiangsu Province

Patentee after: NANJING AUTO AUTOMATION Co.,Ltd.

Address before: 211100 No.1, Fangyuan West Road, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province

Patentee before: NANJING AUTO ELECTRIC Co.,Ltd.