CN211457389U

CN211457389U - Heating device for inside and outside of large-sized steel pipe

Info

Publication number: CN211457389U
Application number: CN201922161415.8U
Authority: CN
Inventors: 王延召; 李海峰
Original assignee: Luoyang Judian Metal Hot Working Equipment Co ltd
Current assignee: Luoyang Judian Metal Hot Working Equipment Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-09-08
Anticipated expiration: 2029-12-05

Abstract

The utility model discloses a heating device inside and outside a large steel pipe, which comprises a novel combined cantilever mechanism, a movable heating device of the large steel pipe and an adjustable heating device; this adjustable heating device in the heating device inside and outside large-scale steel pipe can be according to the pipe adjustment heating radius of different pipe diameters, make the device be applicable to different pipe diameters, practice thrift manufacturing cost, the area of heating region is increased through the relative angle of adjustment heater strip mounting panel and fixed plate and the crisscross overlapping of four heating coil, can improve work efficiency, the movable heating device of large-scale steel pipe is through vertical and lateral shifting, the position of adjustment heater, and then realize each position accurate heating to the work piece, make the product be heated evenly, guarantee the quality of product, it is nimble, accurate for needing the district's temperature compensation that mends, novel combination cantilever mechanism's reliable and stable structure, bearing capacity is strong.

Description

Heating device for inside and outside of large-sized steel pipe

Technical Field

The utility model relates to a heating technology field specifically is an inside and outside heating device of large-scale steel pipe.

Background

The large-caliber (more than 4000mm) steel pipe is mainly applied to the construction of a water delivery trunk line, urban sewage and a water supply main pipe network, when the steel pipe is used, the spraying of an inner anti-corrosion coating and an outer anti-corrosion coating needs to be carried out, and the steel pipe needs to be preheated before the spraying. At present, the steel pipe is sprayed and preheated mainly by adopting a box type resistance furnace and a natural gas box type furnace. The scheme has large energy consumption and low efficiency and can not be operated continuously.

The heating efficiency of the natural gas box type furnace is adopted, and the air is often polluted along with the discharge of sulfides and carbon dioxide; the box-type resistance furnace has larger energy loss; and the two modes have high investment cost and low utilization rate and are not beneficial to moving operation.

Disclosure of Invention

The technical problem to be solved by the utility model is to overcome the existing defects, provide a heating device inside and outside large steel pipe, can be suitable for pipes with different pipe diameters by an adjustable heating device, improve the universality of the device, save the cost, simultaneously utilize the principle of induction heating, convert the electric energy into high-frequency magnetic lines of force to act on the surface of the steel pipe, utilize the mode of steel pipe cutting magnetic lines of force to achieve the heating purpose, compared with the gas heating, the device is more environment-friendly, compared with the resistance heating mode, the efficiency is more energy-saving and higher, the thermal conversion efficiency is more than 70%, zero pollutant discharge, the movable heating device of large steel pipe enables the worktable to do longitudinal movement along the slide rail, simultaneously the operation of the lead screw motor can enable the heater to do transverse movement, more flexibly and accurately supplement the temperature for the area needing temperature supplement, the novel combined cantilever mechanism can install the heating equipment and the powder spraying equipment on the, the integration level of the mechanism is high, the problem that the occupied area of the traditional device is large is effectively improved, meanwhile, the usability of the mechanism is strong, and the problem in the background technology can be effectively solved.

In order to achieve the above object, the utility model provides a following technical scheme: a heating device for the inside and outside of a large steel pipe comprises a novel combined cantilever mechanism, a movable heating device and an adjustable heating device of the large steel pipe, wherein the adjustable heating device is fixedly connected with the novel combined cantilever mechanism, and the movable heating device of the large steel pipe is arranged below the novel combined cantilever mechanism;

the novel combined cantilever mechanism comprises a cantilever body, wherein a cantilever body mounting plate is arranged on the lower surface of the cantilever body, a water outlet pipe, a water inlet pipe and an air guide pipe are arranged on the lower bottom surface of the cantilever body through clamping clips, a copper bar is arranged on one side of the air guide pipe, two connecting seats are arranged on the lower surface of the right end of the cantilever body, a sleeve barrel is arranged between the connecting seats and fixedly connected with a protective cover through a connecting shaft, a support is arranged on the lower surface of the right end of the cantilever body, and the protective cover is;

the movable heating device for the large steel pipe comprises a large platform, wherein the large platform is fixedly connected with a base through a fastener, slide rails are arranged on the left side and the right side of the upper surface of the base, a workbench is arranged above the slide rails, fixed supports are symmetrically arranged at the left end and the right end of the lower surface of the workbench, a first guide wheel and a second guide wheel are arranged at the lower end of each fixed support, the first guide wheel and the second guide wheel are arranged close to the upper surface and the lower surface of the slide rails, a lead screw motor is arranged on the upper surface of the workbench, an output shaft of the lead screw motor is connected with a lead screw through a coupler, the lead screw penetrates through the sliding table, a small platform is arranged on the upper surface of the;

adjustable heating device, including the base station, the leading flank of base station is provided with the arc, the arc is connected with the frame board, and the last fixed surface of frame board is connected with the connecting block, and the connecting block is connected with the support through a support axle, and the upper surface of support is provided with the fixed plate, and the fixed plate is connected with the heater strip mounting panel through the connecting hole, and the heater strip mounting panel is provided with the heater strip.

As an optimized technical scheme of the utility model, the left and right sides face of cantilever main part is provided with first strengthening rib and second strengthening rib.

As a preferred technical scheme of the utility model, the quantity of first strengthening rib and second strengthening rib is two, and the symmetry sets up the upper surface at the cantilever main part around two first strengthening ribs and second strengthening rib.

As an optimized technical scheme of the utility model, the lower surface of base is provided with the base plate.

As an optimal technical scheme of the utility model, the lateral surface of fixed bolster is provided with deep floor.

As an optimized technical scheme of the utility model, both ends symmetry is provided with slewing mechanism about the upper surface of big platform.

As an optimized technical scheme of the utility model, the lower bottom surface of big platform is provided with the leading wheel, and the leading wheel is near setting up with the guide rail.

As an optimal technical scheme of the utility model, there is compensation electric capacity through installing support connection in the base station.

As a preferred technical scheme of the utility model, the arc and the interval that are of heater strip mounting panel are provided with the recess, and the quantity of recess is two at least, the recess is provided with heater strip support.

Compared with the prior art, the beneficial effects of the utility model are that: the adjustable heating device in the heating device inside and outside the large steel pipe can adjust the heating radius according to pipes with different pipe diameters, so that the device is suitable for different pipe diameters, the production cost is saved, the area of a heating area is increased by adjusting the relative angle between a heating wire support plate and a fixed plate and the staggered overlapping of four heating coils, the working efficiency can be improved, the position of a heater is adjusted by longitudinally and transversely moving the movable heating device of the large steel pipe, further, the accurate heating of each position of a workpiece is realized, the product is uniformly heated, the quality of the product is ensured, the temperature of a region needing temperature compensation is flexibly and accurately compensated, the novel combined cantilever mechanism has reliable and stable structure and strong bearing capacity, meanwhile, the heating equipment and the powder spraying equipment are intensively arranged on the mechanism, the integration level is high, the disassembly and the assembly are convenient, so that the structure can be repeatedly used, the utilization rate is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a novel combined cantilever mechanism;

FIG. 3 is a front view of a movable heating device for large steel pipes;

FIG. 4 is a schematic structural view of a movable heating device for large steel pipes;

fig. 5 is a schematic structural view of an adjustable heating device.

In the figure: 1 novel combined cantilever mechanism, 11 cantilever main body mounting plates, 12 air guide pipes, 13 water inlet pipes, 14 water outlet pipes, 15 supports, 16 copper bars, 17 connecting shafts, 18 sleeve shafts, 19 cantilever main bodies, 110 connecting seats, 111 shields, 112 first reinforcing ribs, 113 second reinforcing ribs, 2 movable heating devices of large steel pipes, 21 heaters, 22 small platforms, 23 sliding tables, 24 lead screws, 25 working tables, 26 sliding rails, 27 large platforms, 28 lead screw motors, 29 bases, 210 fixing supports, 211 second guide wheels, 212 first guide wheels, 213 base plates, 214 reinforcing rib plates, 3 adjustable heating devices, 31 connecting blocks, 32 bases, 33 fixing plates, 34 arc plates, 35 frame plates, 36 heating wire support plates, 37 connecting holes, 38 heating wires, 39 supports, 310 support shafts, 311 compensation capacitors and 312 heating wire supports.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments (for convenience of description and understanding, the following description is made with the upper side of fig. 1 as the upper side). Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a heating device for the inside and outside of a large-sized steel pipe comprises a novel combined cantilever mechanism 1, a movable heating device 2 and an adjustable heating device 3 of the large-sized steel pipe, wherein the adjustable heating device 3 is fixedly connected to the novel combined cantilever mechanism 1, and the movable heating device 2 of the large-sized steel pipe is arranged below the novel combined cantilever mechanism 1;

the novel combined cantilever mechanism 1 comprises a cantilever body 19, wherein the left side surface and the right side surface of the cantilever body 19 are provided with two first reinforcing ribs 112 and two second reinforcing ribs 113, the two first reinforcing ribs 112 and the two second reinforcing ribs 113 are symmetrically arranged on the upper surface of the cantilever body 19 in a front-back manner, so that the structural strength of the cantilever body 19 is improved, the lower surface of the cantilever body 19 is provided with a cantilever body mounting plate 11, the lower bottom surface of the cantilever body 19 is provided with a water outlet pipe 14, a water inlet pipe 13 and an air guide pipe 12 through clamping, one side of the air guide pipe 12 is provided with a copper bar 16, the lower surface of the right end of the cantilever body 19 is provided with two connecting seats 110, a sleeve barrel 18 is arranged between the connecting seats 110, the sleeve barrel 18 is fixedly connected with a protective cover 111 through a connecting shaft 17, and the lower, the shield 111 is rotatably connected with the bracket 15;

the movable heating device 2 for large steel pipes comprises a large platform 27, wherein rotating mechanisms 215 are symmetrically arranged at the left end and the right end of the upper surface of the large platform 27, so that workpieces rotate, the heating area is increased, and the heating is more uniform, the large platform 27 and the large platform 27 are fixedly connected with a base 29 through fasteners, a base plate 213 is arranged on the lower surface of the base 29, the stability of the base 9 is kept, slide rails 26 are arranged at the left side and the right side of the upper surface of the base 29, a working table 25 is arranged above the slide rails 26, fixed supports 210 are symmetrically arranged at the left end and the right end of the lower surface of the working table 25, reinforcing rib plates 214 are arranged on the outer side surface of each fixed support 210, the structural strength of each fixed support 210 is kept, a first guide wheel 212 and a second guide wheel 211 are arranged at the lower end of each fixed support 210, the first guide wheel 212 and the second guide wheel 211 are arranged close, an output shaft of the screw motor 28 is connected with a screw 24 through a coupler, the screw 24 is arranged to penetrate through the sliding table 23, a small platform 22 is arranged on the upper surface of the sliding table 23, and a heater 21 is arranged on the upper surface of the small platform 22;

the adjustable heating device 3 comprises a base station 32, a compensation capacitor 311 is connected in the base station 32 through a mounting bracket, the heating effect is improved, an arc plate 34 is arranged on the front side surface of the base station 32, the arc plate 34 is connected with a frame plate 35, a connecting block 31 is fixedly connected to the upper surface of the frame plate 35, the connecting block 31 is connected with a support 39 through a support shaft 310, a fixing plate 33 is arranged on the upper surface of the support 39, the fixing plate 33 is connected with a heating wire support plate 36 through a connecting hole 37, the heating wire support plate 36 is arc-shaped and provided with grooves at intervals, the number of the grooves is at least two, the grooves are provided with heating wire supports 312, the heating wire support plate 36 is provided with heating wires 38, the heating wire supports 312 are used for supporting the heating wires 38, the device realizes the internal and external heat of a large-sized steel pipe, the quality of the product is ensured.

When in use: the adjustable heating device 3, the water, electricity and gas leading-out system and the powder spraying equipment are fixedly arranged on the novel combined cantilever mechanism 1, the rotating mechanism 215 of the movable heating device 2 of the large-sized steel pipe is used for bearing a workpiece, the workpiece is positioned on the outer side surface of the adjustable heating device 3, the position of the heating wire support plate 36 is adjusted and adjusted, the position of the heating wire support plate 36 is adjusted to a proper position, the relative angle between the fixing plate 33 and the heating wire support plate 36 is adjusted and adjusted, the workbench 25 is moved longitudinally, the external controller controls the lead screw motor 28 to be started, so that the heater 21 is driven to move transversely, the circuit heating wire 38 is switched on to work, the inner wall of the workpiece is heated, the heater 21 starts to work, rib plates outside the workpiece are heated, and the large platform 22 moves on the guide rail 217 to drive the workpiece, the heating wire 38 heats the workpiece comprehensively, the external drive drives the rotating mechanism 215 to rotate so as to rotate the workpiece, and the heater 21 heats the outside of the workpiece under the action of the screw motor 28 and the workbench 5.

The utility model achieves the heating purpose by using the way of cutting magnetic lines by the steel pipe, is more environment-friendly compared with gas heating, and has no greenhouse gas emission; compare resistance heating mode more energy-conserving, efficiency is higher, and thermal conversion efficiency is more than 70%, improves heating efficiency greatly, adopts dismantled and assembled structure, makes easy dismounting, and the used repeatedly that is convenient for improves the utilization ratio, and vertical and lateral shifting can adjust the position of heater, and then realizes the accurate heating to each position of work piece, makes being heated of product even, guarantees the quality of product.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an inside and outside heating device of large-scale steel pipe which characterized in that: the device comprises a novel combined cantilever mechanism (1), a movable heating device (2) and an adjustable heating device (3) of a large-sized steel pipe, wherein the adjustable heating device (3) is fixedly connected to the novel combined cantilever mechanism (1), and the movable heating device (2) of the large-sized steel pipe is arranged below the novel combined cantilever mechanism (1);

the novel combined cantilever mechanism comprises a cantilever body (19), wherein a cantilever body mounting plate (11) is arranged on the lower surface of the cantilever body (19), a water outlet pipe (14), a water inlet pipe (13) and an air guide pipe (12) are arranged on the lower bottom surface of the cantilever body (19) through clamping, a copper bar (16) is arranged on one side of the air guide pipe (12), two connecting seats (110) are arranged on the lower surface of the right end of the cantilever body (19), a sleeve barrel (18) is arranged between the connecting seats (110), the sleeve barrel (18) is fixedly connected with a shield (111) through a connecting shaft (17), a support (15) is arranged on the lower surface of the right end of the cantilever body (19), and the shield (111) is rotatably connected;

the movable heating device for the large steel pipe comprises a large platform (27), the large platform (27) is fixedly connected with a base (29) through a fastener, slide rails (26) are arranged on the left side and the right side of the upper surface of the base (29), a workbench (25) is arranged above the slide rails (26), fixing supports (210) are symmetrically arranged on the left end and the right end of the lower surface of the workbench (25), a first guide wheel (212) and a second guide wheel (211) are arranged at the lower end of each fixing support (210), the first guide wheel (212) and the second guide wheel (211) are arranged close to the upper surface and the lower surface of each slide rail (26), a lead screw motor (28) is arranged on the upper surface of the workbench (25), an output shaft of the lead screw motor (28) is connected with a lead screw (24) through a coupler, the lead screw (24) is arranged to penetrate through a sliding table (23), and a small platform (22) is arranged on the, the upper surface of the small platform (22) is provided with a heater (21);

adjustable heating device, including base station (32), the leading flank of base station (32) is provided with arc (34), arc (34) are connected with frame board (35), and the last fixed surface of frame board (35) is connected with connecting block (31), and connecting block (31) are connected with support (39) through support axle (310), and the upper surface of support (39) is provided with fixed plate (33), and fixed plate (33) are connected with heater strip mounting panel (36) through connecting hole (37), and heater strip mounting panel (36) are provided with heater strip (38).

2. The heating device for inside and outside of a large steel pipe according to claim 1, characterized in that: the left side and the right side of the cantilever main body (19) are provided with a first reinforcing rib (112) and a second reinforcing rib (113).

3. The heating device for inside and outside of a large steel pipe according to claim 2, characterized in that: the number of the first reinforcing ribs (112) and the second reinforcing ribs (113) is two, and the two first reinforcing ribs (112) and the two second reinforcing ribs (113) are symmetrically arranged on the upper surface of the cantilever main body (19) in a front-back mode.

4. The heating device for inside and outside of a large steel pipe according to claim 1, characterized in that: the lower surface of the base (29) is provided with a substrate (213).

5. The heating device for inside and outside of a large steel pipe according to claim 1, characterized in that: and a reinforcing rib plate (214) is arranged on the outer side surface of the fixed support (210).

6. The heating device for inside and outside of a large steel pipe according to claim 1, characterized in that: and the left end and the right end of the upper surface of the large platform (27) are symmetrically provided with rotating mechanisms (215).

7. The heating device for inside and outside of a large steel pipe according to claim 1, characterized in that: the lower bottom surface of the large platform (27) is provided with a guide wheel (216), and the guide wheel (216) is abutted to the guide rail (217).

8. The heating device for inside and outside of a large steel pipe according to claim 1, characterized in that: a compensation capacitor (311) is connected in the base platform (32) through a mounting bracket.

9. The heating device for inside and outside of a large steel pipe according to claim 1, characterized in that: the heating wire support plate (36) is arc-shaped and is provided with grooves at intervals, the number of the grooves is at least two, and the grooves are provided with heating wire supports (312).