High-temperature-resistant double-flange pipeline welding limiting device

Abstract

The invention discloses a high-temperature-resistant double-flange pipeline welding limiting device. At present, when a heat distribution pipeline and a flange plate are welded, the flange plate and the heat distribution pipeline need to be turned over continuously in the whole welding process, and much inconvenience is brought to the welding process of the heat distribution pipeline. The high-temperature-resistant double-flange pipeline welding limiting device comprises a base plate (1) and a station table (2), the circle center position of the top of the base plate is fixedly connected with the outer ring face of a rolling bearing (3), the inner ring face of the rolling bearing is fixedly connected with a polished shaft (4), the top of the polished shaft is perpendicularly and fixedly connected with the circle center position of the station table, and the station table and the base plate are of a parallel structure. Two square pipes (5) are vertically welded above the station table, and a limiting top plate (6) of a rectangular structure is connected between the two square pipes. The invention belongs to the thermoelectric field.

Description

Technical Field

[0001] The invention relates to a high-temperature resistant double-flange pipeline welding limiting device. Background Art

[0002] Double flange thermal pipes are heating pipes that start from the boiler room, direct-fired machine room, heating center, etc. of thermal power plants and go from the heat source to the thermal entrance of the building. When connecting thermal pipes to form a thermal network, the connection between thermal pipes is usually fixed by flanges at both ends of the thermal pipes. When the flanges are welded at both ends of the thermal pipe, since the welding track of the thermal pipe and the flange is a ring structure, the flange and the thermal pipe need to be turned over continuously during the welding process, which brings many inconveniences to the welding process of the thermal pipe. Summary of the invention

[0003] The purpose of the invention is to provide a high temperature resistant double flange pipeline welding limiting device.

[0004] The above purpose is achieved through the following technical solutions: A high-temperature resistant double-flange pipeline welding limit device, which comprises: a pad and a workbench, the top center position of the pad is fixedly connected to the outer ring surface of the rolling bearing, the inner ring surface of the rolling bearing is fixedly connected to the optical axis, the top of the optical axis is vertically fixedly connected to the center of the workbench, the workbench and the pad are parallel structures, two square tubes are vertically welded above the workbench, a rectangular limit top plate is connected between the two square tubes, the limit top plate is symmetrically provided with two structures of sockets, and straps are inserted into the sockets.

[0005] The high-temperature resistant double-flange pipeline welding limit device has one end of the binding strap connected to a buckle of a Japanese-shaped structure, an adjusting rod is rotatably connected to the buckle, and the other end of the binding strap is provided with a group of round holes.

[0006] The high-temperature resistant double-flange pipeline welding limit device has a horizontal hole surface of the jack with a flat structure on one side and an arc structure on the other side.

[0007] Beneficial effects of the present invention: 1. When welding the thermal pipe and the flange, the present invention first places the flange flat on the workbench, then lifts the thermal pipe by a hoist, so that one side of the thermal pipe fits with the limiting top plate, places the thermal pipe at the groove on the top of the flange, so that the center of the thermal pipe and the flange are on the same vertical line, and then passes the two ends of the strap through the two insertion holes on the limiting top plate respectively, inserts the end of the strap with the circular hole into the buckle at the other end of the strap after passing through, fixes the two ends of the strap, so that the strap is annular, fixes the thermal pipe by the strap, and then welds the thermal pipe to the flange. When welding one side, it is only necessary to rotate the workbench, the bottom of the workbench is connected to the optical axis, and the optical axis is fixedly connected to the inner ring surface of the rolling bearing, so that the workbench can rotate 360 ​​degrees, so that the staff only needs to squat in the same position to weld the thermal pipe and the flange.

[0008] 2. The present invention has the characteristics of simple structure and easy operation. The thermal pipe can be fixed by setting a limiting top plate and a binding strap inserted in the limiting top plate to prevent shaking or tipping of the thermal pipe during welding, thereby ensuring the safety of welders. The work station adopts a 360-degree rotating structure, so welders only need to rotate the work station to complete all welding, saving time and effort. One side of the jack of the limiting top plate adopts an arc structure, which can increase the service life of the binding strap. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Attached Figure 1 It is a structural schematic diagram of the present invention.

[0010] Attached Figure 2 Yes Figure 1 Top view of the .

[0011] Attached Figure 3 It is a schematic diagram of the connection between the square tube and the limiting top plate.

[0012] Attached Figure 4 Yes Figure 3 AA section view.

[0013] In the figure: 1. pad, 2. workbench, 3. rolling bearing, 4. optical axis, 5. square tube, 6. limit top plate, 7. jack, 8. strap, 9. buckle, 10. adjustment rod, 11. round hole, 12. arc structure, 13. thermal pipe, 14. flange. DETAILED DESCRIPTION Example

[0014] A high-temperature resistant double-flange pipeline welding limit device, which comprises: a pad 1 and a workbench 2, wherein the top center position of the pad is fixedly connected to the outer ring surface of a rolling bearing 3, the inner ring surface of the rolling bearing is fixedly connected to an optical axis 4, the top of the optical axis is vertically fixedly connected to the center of the workbench, the workbench and the pad are parallel structures, two square tubes 5 are vertically welded above the workbench, a limit top plate 6 of rectangular structure is connected between the two square tubes, two sockets 7 of structure are symmetrically provided on the limit top plate, and a binding strap 8 is inserted into the socket. Example

[0015] According to the high temperature resistant double flange pipe welding limit device described in Example 1, one end of the binding strap is connected to a buckle 9 of a Japanese-shaped structure, an adjusting rod 10 is rotatably connected to the buckle, and the other end of the binding strap is provided with a group of circular holes 11. Example

[0016] According to the high temperature resistant double flange pipeline welding limit device described in Example 1 or 2, one side of the horizontal hole surface of the jack is a plane structure, and the other side is an arc structure 12.

Claims

1. A high temperature resistant double flange pipeline welding limit device, comprising: The pad and the workbench are characterized in that: the top center position of the pad is fixedly connected to the outer ring surface of the rolling bearing, the inner ring surface of the rolling bearing is fixedly connected to the optical axis, the top of the optical axis is vertically fixedly connected to the center of the workbench, the workbench and the pad are parallel structures, two square tubes are vertically welded above the workbench, a rectangular limit top plate is connected between the two square tubes, and two structures of sockets are symmetrically opened on the limit top plate, and straps are inserted into the sockets.

2. A high temperature resistant double flange pipeline welding limiter according to claim 1, characterized in that: One end of the binding strap is connected with a buckle of a Japanese-shaped structure, and an adjusting rod is rotatably connected to the buckle. The other end of the binding strap is provided with a group of round holes.

3. A high temperature resistant double flange pipeline welding limiter according to claim 1, characterized in that: One side of the hole surface in the horizontal direction of the jack is a plane structure, and the other side is an arc structure.

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