CN212584419U

CN212584419U - Outer coil pipe fixing structure

Info

Publication number: CN212584419U
Application number: CN202021343356.2U
Authority: CN
Inventors: 姚文; 张凯; 侯泽; 宁晓萍
Original assignee: SHANXI FENGXI CHEMICAL EQUIPMENT CO Ltd
Current assignee: SHANXI FENGXI CHEMICAL EQUIPMENT CO Ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-02-23
Anticipated expiration: 2030-07-10

Abstract

The utility model relates to a chemical equipment structure, in particular to an outer coil pipe fixing structure; comprises a positioning block, a pressure plate, a bolt and a gasket; the pressing plate comprises an arc plate and a flat plate which are integrally formed, the arc of the arc plate is a major arc, the flat plate is positioned at one end of the arc plate, and the central plane of the flat plate in the thickness direction is coplanar with the central axis of the arc plate; the positioning block is provided with a screw hole matched with the bolt, and the flat plate and the gasket are also provided with a through hole for the bolt to pass through; the utility model discloses whole fixed knot structure adopts bolted connection, the convenient convenience of dismantlement, maintenance, change of coil pipe. One end of the pressing plate is fixed through a bolt, and the other end of the pressing plate is buckled on the coil pipe and is movably connected through an elastic structure, so that stress generated by expansion with heat and contraction with cold of the coil pipe can be effectively released. Coil pipe fixed knot construct, have simple structure, install and remove convenience, convenient to overhaul change, be applicable to the characteristics of various equipment.

Description

Outer coil pipe fixing structure

Technical Field

The utility model relates to a chemical industry equipment structure, concretely relates to outer coil pipe fixed knot constructs.

Background

In industrial production, many pressure vessels set up the coil pipe structure at equipment outer wall, for satisfying equipment performance, play heating or condensation. Generally, the coil pipes are spirally coiled along the outer wall of equipment by adopting pipes with thin diameters, and the coil pipes are welded and fixed by using a pressing plate and the equipment. In practical use, the structure generally has the following disadvantages: (1) the coil pipe is not easy to replace and overhaul, and the equipment shell is easy to damage during disassembly or overhaul. (2) The heat treatment equipment is not suitable for heat treatment equipment, and the coil pipe is usually installed after heat treatment, so that the equipment body is not allowed to be welded, a backing plate is additionally arranged at a pressing plate and is welded on the equipment in advance, the workload is large, and the manufacturing is difficult. (3) The clamp plate and the equipment are welded to fix the coil pipe, so that the stress generated by expansion with heat and contraction with cold when the coil pipe is used is not released, and the coil pipe is easy to damage. Therefore, a coil fixing structure is needed, which can be suitable for heat treatment equipment, and can be used for maintaining and disassembling the coil at the later stage, conveniently and quickly, save time and labor, and provide certain space for expansion with heat and contraction with cold for the coil.

Disclosure of Invention

The utility model provides an outer coil pipe fixed knot constructs for overcoming the above-mentioned technical problem that outer coil pipe fixed knot structure exists among the prior art.

For solving the technical problem, the utility model discloses the technical scheme who adopts does: an outer coil pipe fixing structure comprises a positioning block, a pressing plate, a bolt and a gasket; the pressing plate comprises an arc plate and a flat plate which are integrally formed, the arc of the arc plate is a major arc, the flat plate is positioned at one end of the arc plate, and the central plane of the flat plate in the thickness direction is coplanar with the central axis of the arc plate; the positioning block is provided with a screw hole matched with the bolt, the flat plate and the gasket are also provided with a through hole for the bolt to pass through, the length of the bolt is greater than the sum of the half of the depth of the screw hole of the positioning block and the depth of the through hole of the positioning block and the gasket, and is less than or equal to the sum of the depth of the screw hole of the positioning block and the depth of the through hole of the positioning block and the gasket.

During manufacturing, the positioning block is welded with the shell in advance according to the coiling line of the coil pipe. Then coil the coil pipe along the casing outer wall, press the clamp plate on the coil pipe, the centre presss from both sides the gasket, and the bolt passes gasket and clamp plate, twists the locating piece, thereby screws up the bolt and makes the clamp plate compress tightly the coil pipe. The whole shell can be provided with a plurality of structures at intervals along the coil pipe, so that the coil pipe is fixed.

The heat treatment equipment can finish welding the positioning block before heat treatment of the equipment, and the subsequent coil pipe installation has no welding requirement. Whole fixed knot structure adopts bolted connection, to the convenient convenience of dismantlement, maintenance, the change of coil pipe during the use, does not have the welding requirement, very big improvement labor efficiency. One end of the pressing plate is fixed through the bolt, and the other end of the pressing plate is buckled on the coil pipe and is movably connected through an elastic structure, so that stress generated by expansion with heat and contraction with cold of the coil pipe can be effectively released, and the safety performance of the coil pipe is improved.

Compared with the prior art the utility model discloses following beneficial effect has:

the utility model discloses whole fixed knot structure adopts bolted connection, the convenient convenience of dismantlement, maintenance, change of coil pipe. One end of the pressing plate is fixed through a bolt, and the other end of the pressing plate is buckled on the coil pipe and is movably connected through an elastic structure, so that stress generated by expansion with heat and contraction with cold of the coil pipe can be effectively released. Coil pipe fixed knot construct, have simple structure, install and remove convenience, convenient to overhaul change, be applicable to the characteristics of various equipment.

Drawings

Fig. 1 is a schematic view of the fixing structure of the outer coil pipe of the present invention.

Fig. 2 is a schematic structural diagram of a positioning block.

Fig. 3 is a schematic view of the structure of the pressing plate.

Fig. 4 is a top view of fig. 3.

The figures are labeled as follows:

1-positioning block, 2-pressing plate, 3-coil pipe, 4-bolt and 5-gasket.

Detailed Description

The present invention will be further described with reference to the following specific examples.

Examples

As shown in fig. 1, an outer coil pipe fixing structure comprises a positioning block 1, a pressure plate 2, a bolt 4 and a gasket 5; the pressing plate 2 and the coil pipe 3 have a matched arc structure; the pressing plate 2 comprises an arc plate and a flat plate which are integrally formed, the arc of the arc plate is a major arc, and the inner diameter of the arc plate is slightly larger than the outer diameter of the coil pipe 3; the flat plate is positioned at one end of the arc-shaped plate, and the central plane of the flat plate in the thickness direction is coplanar with the central axis of the arc-shaped plate; the positioning block 1 is provided with a screw hole matched with the bolt 4, the flat plate and the gasket 5 are also provided with a through hole for the bolt 4 to pass through, the length of the bolt 4 is greater than the sum of half of the depth of the screw hole of the positioning block 1 and the depth of the through holes of the positioning block 1 and the gasket 5, and is less than or equal to the sum of the depth of the screw hole of the positioning block 1 and the depth of the through holes of the positioning block 1 and the gasket 5.

During manufacturing, the positioning block 2 and the shell are welded in advance according to the coiling line of the coil pipe 3. Then coil pipe 3 along the casing outer wall, press clamp plate 2 on coil pipe 3, the centre presss from both sides gasket 5, and bolt 4 passes gasket 5 and clamp plate 2, screws into locating piece 1, thereby screws up bolt 4 and makes clamp plate 2 compress tightly coil pipe 3. The coil pipe interval can be followed to whole casing and a plurality of the utility model discloses the structure to realize the fixed of coil pipe. The heat treatment equipment can finish welding the positioning block 1 before heat treatment of the equipment, and the subsequent coil pipe 3 is installed without welding requirements. Whole fixed knot structure adopts bolt 4 to connect, and is convenient to the dismantlement, the maintenance of coil pipe, change during the use, does not have the welding requirement, very big improvement labor efficiency. The clamp plate 2 one end is fixed through bolt 4, and the other end is detained on coil pipe (3), for elastic construction swing joint, can effectively release the stress that 3 expend with heat and contract with cold of coil pipe produced, has improved the security performance of coil pipe.

As shown in fig. 2, further, the central axis of the screw hole coincides with the central axis of the positioning block 1.

Claims

1. The utility model provides an outer coil pipe fixed knot constructs which characterized in that: comprises a positioning block (1), a pressure plate (2), a bolt (4) and a gasket (5); the pressing plate (2) comprises a section of arc-shaped plate and a section of flat plate which are integrally formed, the arc of the arc-shaped plate is a major arc, the flat plate is positioned at one end of the arc-shaped plate, and the central plane of the flat plate in the thickness direction is coplanar with the central axis of the arc-shaped plate; the positioning block (1) is provided with a screw hole matched with the bolt (4), the flat plate and the gasket (5) are also provided with a through hole for the bolt (4) to pass through, the length of the bolt (4) is greater than the sum of the depth of the screw hole of the positioning block (1) and the depth of the through holes of the positioning block (1) and the gasket (5), and is less than or equal to the sum of the depth of the screw hole of the positioning block (1) and the depth of the through holes of the positioning block (1) and the gasket (5).

2. The external coil fixing structure as claimed in claim 1, wherein: the central axis of the screw hole is superposed with the central line of the positioning block (1).