CN213794919U - Preheating and heat-insulating cover for pipeline welding - Google Patents

Preheating and heat-insulating cover for pipeline welding Download PDF

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Publication number
CN213794919U
CN213794919U CN202022000741.3U CN202022000741U CN213794919U CN 213794919 U CN213794919 U CN 213794919U CN 202022000741 U CN202022000741 U CN 202022000741U CN 213794919 U CN213794919 U CN 213794919U
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circular
swing joint
protection casing
preheating
circular groove
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CN202022000741.3U
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Chinese (zh)
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赵庆功
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Shandong Qinggong Pipeline Welding Installation Co ltd
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Shandong Qinggong Pipeline Welding Installation Co ltd
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Abstract

The utility model discloses a pipe welding preheats heat preservation cover, its technical scheme is: the copper pipe is movably connected with a heat preservation protection device, a first circular groove is formed in the copper pipe, a second circular groove is formed in one side of the first circular groove, a circular preheating hole is formed between the first circular groove and the second circular groove, and preheating devices are movably connected in the first circular groove and the second circular groove; the preheating device comprises a first circular heating sheet, the first circular heating sheet is movably connected with a first circular groove, a second circular heating sheet is movably connected in a second circular groove, and power cords are arranged on the first circular heating sheet and the second circular heating sheet; the utility model has the advantages that: the inner wall and the outer wall of the pipeline are simultaneously preheated through the preheating device, so that the pipeline is preheated more uniformly, the temperature difference between welded workpieces in a welding area is reduced, and the welding cracks are effectively avoided.

Description

Preheating and heat-insulating cover for pipeline welding
Technical Field
The utility model relates to a pipeline welding technical field, concretely relates to pipeline welding preheats heat preservation cover.
Background
In the actual production and processing process: we often need to use welding, and the following problems occur: the welding of steel materials generally adopts a fusion welding method, the welded material and the added welding material are melted into liquid metal to form a molten pool, and then the molten pool is cooled and solidified into solid metal, so that the originally separated steel materials are connected into a whole.
The prior art has the following defects: when the existing device is used for welding, because the temperature difference between the welded workpieces in the welding area of the welded workpiece is too large, the welding is suddenly heated and then rapidly cooled, the thermal change is rapidly carried out in a local range to generate plastic deformation, and the plastic deformation is remained after the welding is finished and cooled to normal temperature, so that the probability of generating welding cracks is increased.
Therefore, it is necessary to invent a pipe welding preheating heat preservation cover.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a pipe welding preheats heat preservation cover inserts circular preheating hole through the one end that needs the pipeline to preheat, heats through the circular recess of heating plate, preheats the pipeline inside and outside wall simultaneously through circular recess for the pipeline preheats more evenly, reduces the temperature difference of welding zone between by the welding work piece, with the too big production welding crack problem of temperature difference when solving pipe welding.
In order to achieve the above object, the present invention provides the following technical solutions: a preheating and heat-insulating cover for pipeline welding comprises a copper pipe, wherein a heat-insulating protective device is movably connected outside the copper pipe, a first circular groove is formed in the copper pipe, a second circular groove is formed in one side of the first circular groove, a circular preheating hole is formed between the first circular groove and the second circular groove, and preheating devices are movably connected in the first circular groove and the second circular groove;
the preheating device comprises a first circular heating sheet, the first circular heating sheet is movably connected with a first circular groove, a second circular heating sheet is movably connected in a second circular groove, and power cords are arranged on the first circular heating sheet and the second circular heating sheet;
the heat preservation protection device comprises a first protection cover and a second protection cover, wherein the joint of the first protection cover and the second protection cover is provided with a movable connection device, one side, away from the movable connection device, of the first protection cover and the second protection cover is provided with a fixing device, heat preservation holes are formed in the inner wall of the first protection cover and the inner wall of the second protection cover, a first through hole is formed in the middle of one end of the bottom of the first protection cover, and a first through hole is formed in the middle of one end of the top of the second protection cover.
Preferably, the swing joint device includes first swing joint piece, the first swing joint piece of fixing device one side fixedly connected with is kept away from to first protection casing, fixing device one side fixedly connected with second swing joint piece is kept away from to the second protection casing, swing joint has first bolt in first swing joint piece, the second swing joint piece, first swing joint piece, second swing joint piece pass through first bolt swing joint, first protection casing passes through swing joint device and second protection casing swing joint.
Preferably, fixing device includes first fixed block, the first protection casing is kept away from the first fixed block of swing joint device one side fixedly connected with, swing joint device one side fixedly connected with second fixed block is kept away from to the second protection casing, first round hole has been seted up on the first fixed block, the second round hole has been seted up on the second fixed block, first round hole is corresponding with the second round hole, fixedly connected with second bolt in first round hole, the second round hole, first fixed block passes through second bolt fixed connection with the second fixed block, first protection casing passes through fixing device fixed connection with the second protection casing.
Preferably, a notch is formed in one side of the copper pipe, and the power line is movably connected with the copper pipe through the notch.
Preferably, the circular preheating hole is movably connected with a pipeline.
Preferably, fixing device includes first fixed block, the first fixed block of swing joint device one side fixedly connected with is kept away from to first protection casing, swing joint device one side fixedly connected with second fixed block is kept away from to the second protection casing, first screw hole has been seted up on the first fixed block, the second screw hole has been seted up on the second fixed block, first screw hole is corresponding with the second screw hole, first screw hole, second screw hole female connection have the screw, first fixed block passes through screw fixed connection with the second fixed block, first protection casing passes through fixing device fixed connection with the second protection casing.
The utility model has the advantages that:
1. the utility model discloses an insert circular hole of preheating with the one end that the pipeline needs to preheat, connect the power and heat first circular recess, the circular recess of second through first circular heating plate, the circular heating plate of second, preheat the pipeline inside and outside wall simultaneously through first circular recess, the circular recess of second for the pipeline preheats more evenly, reduces the temperature difference between the welding area quilt welding work piece, is favorable to avoiding producing the welding crackle.
2. The utility model discloses a including first protection casing and second protection casing pass through fixing device and wrap up preheating device, including also wrapping up the part that preheats the pipeline through first through-hole, preserve the heat through the insulating hole, reduce the speed that the air flows, slow down the heat and run off.
3. The utility model discloses a first protection casing passes through swing joint device and second protection casing swing joint, and the first protection casing on the heat preservation protector passes through swing joint device and second protection casing swing joint, conveniently dismantles convenient to use.
Drawings
FIG. 1 is a structural diagram of the inside of a copper tube according to the present invention;
fig. 2 is a cross-sectional view provided by the present invention;
FIG. 3 is a side view of the thermal insulation protection device provided by the present invention;
FIG. 4 is a front view of the thermal insulation protection device provided by the present invention;
fig. 5 is a diagram of a fixing device provided by the present invention;
fig. 6 is a diagram of a fixing device provided by the present invention;
in the figure: 1 copper pipe, 11 first circular recess, 12 second circular recess, 13 circular preheating holes, 14 breach, 2 preheating device, 21 first circular heating plate, 22 second circular heating plate, 23 power cord, 3 heat preservation protector, 31 first protection casing, 32 second protection casing, 33 heat preservation hole, 34 first through-hole, 4 swing joint device, 41 first movable connecting block, 42 second movable connecting block, 43 first bolt, 5 fixing device, 51 first fixed block, 52 second fixed block, 53 first round hole, 54 second round hole, 55 second bolt, 56 first screw hole, 57 second screw hole, 58 screws, 6 pipelines.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Embodiment 1, refer to fig. 1-5, the utility model provides a pipeline welding preheats heat preservation cover, including copper pipe 1, copper pipe 1 is outer to be connected with heat preservation protector 3 movably, first circular recess 11 has been seted up in copper pipe 1, second circular recess 12 has been seted up to first circular recess 11 one side, circular preheating hole 13 has been seted up between first circular recess 11 and the second circular recess 12, all movably connected with preheating device 2 in first circular recess 11, the second circular recess 12;
the preheating device 2 comprises a first circular heating sheet 21, the first circular heating sheet 21 is movably connected with a first circular groove 11, a second circular heating sheet 22 is movably connected in a second circular groove 12, both the first circular heating sheet 21 and the second circular heating sheet 22 are provided with power lines 23, one end of the pipeline 6 needing to be preheated is inserted into the circular preheating hole 13, a power supply is connected to heat the first circular groove 11 and the second circular groove 12 through the first circular heating sheet 21 and the second circular heating sheet 22, and the inner wall and the outer wall of the pipeline 6 are simultaneously preheated through the first circular groove 11 and the second circular groove 12, so that the pipeline 6 is preheated more uniformly, and the risk of cracks is reduced;
the heat preservation protection device 3 comprises a first protection cover 31 and a second protection cover 32, a movable connecting device 4 is arranged at the joint of the first protection cover 31 and the second protection cover 32, a fixing device 5 is arranged on one side, away from the movable connecting device 4, of the first protection cover 31 and the second protection cover 32, heat preservation holes 33 are formed in the inner walls of the first protection cover 31 and the second protection cover 32, a first through hole 34 is formed in the middle of one end of the bottom of the first protection cover 31, a first through hole 34 is formed in the middle of one end of the top of the second protection cover 32, the preheating device 2 is wrapped in the first protection cover 31 and the second protection cover 32, the preheating part of the pipeline 6 is wrapped in the first through hole 34, heat is preserved through the heat preservation holes 33, the air flowing speed is reduced, and heat loss is slowed down;
further, the movable connecting device 4 comprises a first movable connecting block 41, one side of the first protective cover 31, which is far away from the fixing device 5, is fixedly connected with the first movable connecting block 41, one side of the second protective cover 32, which is far away from the fixing device 5, is fixedly connected with a second movable connecting block 42, first bolts 43 are movably connected in the first movable connecting block 41 and the second movable connecting block 42, the first movable connecting block 41 and the second movable connecting block 42 are movably connected through the first bolts 43, the first protective cover 31 is movably connected with the second protective cover 32 through the movable connecting device 4, and the first protective cover 31 on the heat-preservation protective device 3 is movably connected with the second protective cover 32 through the movable connecting device 4, so that the disassembly and the use are convenient;
further, the fixing device 5 includes a first fixing block 51, one side of the first protection cover 31 away from the movable connection device 4 is fixedly connected with the first fixing block 51, one side of the second protection cover 32 away from the movable connection device 4 is fixedly connected with a second fixing block 52, the first fixing block 51 is provided with a first round hole 53, the second fixing block 52 is provided with a second round hole 54, the first round hole 53 corresponds to the second round hole 54, a second bolt 55 is fixedly connected in the first round hole 53 and the second round hole 54, the first fixing block 51 is fixedly connected with the second fixing block 52 through the second bolt 55, the first protection cover 31 is fixedly connected with the second protection cover 32 through the fixing device 5, the preheating device 2 is wrapped, the part of the pipeline 6 is wrapped through the first through hole 34, and heat is stored through the heat preservation hole 33, the air flow speed is reduced, and the heat loss is slowed down;
furthermore, a notch 14 is formed in one side of the copper tube 1, the power line 23 is movably connected with the copper tube 1 through the notch 14, and the power line 23 is electrified to heat the first circular heating sheet 21 and the second circular heating sheet 22;
further, the circular preheating hole 13 is movably connected with the pipeline 6, one end of the pipeline 6 to be preheated is inserted into the circular preheating hole 13, and the inner wall and the outer wall of the pipeline 6 are simultaneously preheated through the first circular heating sheet 21 and the second circular heating sheet 22.
The utility model discloses a use as follows: use the utility model discloses the time with first circular heating piece 21, second circular heating piece 22 is installed respectively to first circular recess 11, in the circular recess 12 of second, pull out power cord 23 through breach 14, pass through swing joint device 4 and second protection casing 32 swing joint with first protection casing 31, insert circular preheating hole 13 with the one end that pipeline 6 needs to preheat in, including the one end parcel that needs preheating device 2 and pipeline 6 with first protection casing 31 and second protection casing 32, go up the power, through first circular heating piece 21, second circular heating piece 22 is to first circular recess 11, second circular recess 12 heats, through first circular recess 11, second circular recess 12 preheats the inside and outside wall of pipeline 6 simultaneously.
Embodiment 2, refer to fig. 6, the utility model provides a pair of pipe welding preheats heat preservation cover is different from embodiment 1, fixing device 5 includes first fixed block 51, first protection casing 31 is kept away from the first fixed block 51 of swing joint device 4 one side fixedly connected with, second protection casing 32 is kept away from swing joint device 4 one side fixedly connected with second fixed block 52, first screw hole 56 has been seted up on the first fixed block 51, second screw hole 57 has been seted up on the second fixed block 52, first screw hole 56 is corresponding with second screw hole 57, first screw hole 56, second screw hole 57 female connection have screw 58, first fixed block 51 passes through screw 58 fixed connection with second fixed block 52, first protection casing 31 passes through fixing device 5 fixed connection with second protection casing 32, and first protection casing 31 passes through screw 58 and first screw hole 56, first protection casing 56, Threaded connection before the second screw hole 57 is fixed with second protection casing 32, including preheating device 2 parcel, also including the part that preheats pipeline 6 through first through-hole 34 wraps up, keeps the heat through heat preservation hole 33, reduces the speed that the air flows, slows down heat loss.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.

Claims (6)

1. The utility model provides a pipe welding preheats heat preservation cover, includes copper pipe (1), its characterized in that: the heat-preservation protection device (3) is movably connected outside the copper pipe (1), a first circular groove (11) is formed in the copper pipe (1), a second circular groove (12) is formed in one side of the first circular groove (11), a circular preheating hole (13) is formed between the first circular groove (11) and the second circular groove (12), and preheating devices (2) are movably connected in the first circular groove (11) and the second circular groove (12);
the preheating device (2) comprises a first circular heating sheet (21), the first circular heating sheet (21) is movably connected with a first circular groove (11), a second circular heating sheet (22) is movably connected in a second circular groove (12), and power lines (23) are arranged on the first circular heating sheet (21) and the second circular heating sheet (22);
keep warm protector (3) including first protection casing (31), second protection casing (32), first protection casing (31), second protection casing (32) junction are equipped with swing joint device (4), swing joint device (4) one side is kept away from in first protection casing (31), second protection casing (32) is equipped with fixing device (5), all seted up on the interior wall of first protection casing (31), second protection casing (32) heat preservation hole (33), first through-hole (34) have been seted up in the middle of first protection casing (31) bottom one end, first through-hole (34) have been seted up in the middle of second protection casing (32) top one end.
2. The preheating and heat-insulating cover for pipeline welding according to claim 1, characterized in that: swing joint device (4) are including first swing joint piece (41), the first swing joint piece (41) of fixing device (5) one side fixedly connected with is kept away from in first protection casing (31), fixing device (5) one side fixedly connected with second swing joint piece (42) are kept away from in second protection casing (32), swing joint has first bolt (43) in first swing joint piece (41), the second swing joint piece (42), first swing joint piece (41), second swing joint piece (42) are through first bolt (43) swing joint, first protection casing (31) are through swing joint device (4) and second protection casing (32) swing joint.
3. The preheating and heat-insulating cover for pipeline welding according to claim 1, characterized in that: the fixing device (5) comprises a first fixing block (51), one side of the first protective cover (31) far away from the movable connecting device (4) is fixedly connected with the first fixing block (51), a second fixed block (52) is fixedly connected to one side of the second protective cover (32) far away from the movable connecting device (4), the first fixed block (51) is provided with a first round hole (53), the second fixed block (52) is provided with a second round hole (54), the first round hole (53) corresponds to the second round hole (54), a second bolt (55) is fixedly connected in the first round hole (53) and the second round hole (54), the first fixing block (51) is fixedly connected with the second fixing block (52) through a second bolt (55), the first protective cover (31) and the second protective cover (32) are fixedly connected through a fixing device (5).
4. The preheating and heat-insulating cover for pipeline welding according to claim 1, characterized in that: a notch (14) is formed in one side of the copper pipe (1), and the power line (23) is movably connected with the copper pipe (1) through the notch (14).
5. The preheating and heat-insulating cover for pipeline welding according to claim 1, characterized in that: the circular preheating hole (13) is movably connected with a pipeline (6).
6. The preheating and heat-insulating cover for pipeline welding according to claim 1, characterized in that: the fixing device (5) comprises a first fixing block (51), one side of the first protective cover (31) far away from the movable connecting device (4) is fixedly connected with the first fixing block (51), a second fixed block (52) is fixedly connected to one side of the second protective cover (32) far away from the movable connecting device (4), a first threaded hole (56) is formed in the first fixing block (51), a second threaded hole (57) is formed in the second fixing block (52), the first threaded hole (56) corresponds to the second threaded hole (57), the first threaded hole (56) and the second threaded hole (57) are internally connected with screws (58), the first fixing block (51) is fixedly connected with the second fixing block (52) through a screw (58), the first protective cover (31) and the second protective cover (32) are fixedly connected through a fixing device (5).
CN202022000741.3U 2020-09-14 2020-09-14 Preheating and heat-insulating cover for pipeline welding Active CN213794919U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022000741.3U CN213794919U (en) 2020-09-14 2020-09-14 Preheating and heat-insulating cover for pipeline welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022000741.3U CN213794919U (en) 2020-09-14 2020-09-14 Preheating and heat-insulating cover for pipeline welding

Publications (1)

Publication Number Publication Date
CN213794919U true CN213794919U (en) 2021-07-27

Family

ID=76953551

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022000741.3U Active CN213794919U (en) 2020-09-14 2020-09-14 Preheating and heat-insulating cover for pipeline welding

Country Status (1)

Country Link
CN (1) CN213794919U (en)

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