CN219140078U

CN219140078U - Novel cold-drawn precision welded steel tube for boiler

Info

Publication number: CN219140078U
Application number: CN202223590299.XU
Authority: CN
Inventors: 周仁杰; 黄俊锋; 包永力
Original assignee: Jiangu Dom Pipe Ltd
Current assignee: Jiangu Dom Pipe Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-06
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of cold-drawn precision welded steel pipes, in particular to a novel cold-drawn precision welded steel pipe for a boiler, which comprises a precision welded steel pipe body, wherein the precision welded steel pipe comprises an outer pipe and an inner pipe, an insulating layer is arranged on the inner wall of the outer pipe, a rubber layer is arranged on the inner side of the insulating layer, a splicing mechanism is arranged between the inner pipe and the rubber layer, the splicing mechanism comprises a guide groove and a guide strip, an effective heat preservation effect can be achieved between the outer pipe and the inner pipe through the insulating layer, when the outer pipe or the inner pipe is expanded due to temperature difference, the rubber layer on the inner side of the insulating layer is extruded to deform, so that the situation that the outer pipe and the inner pipe are mutually extruded to break can be prevented, and the stability between the precision welded steel pipe body and an external installation fixing structure is effectively ensured.

Description

Novel cold-drawn precision welded steel tube for boiler

Technical Field

The utility model relates to the technical field of cold-drawn precision welded steel pipes, in particular to a novel cold-drawn precision welded steel pipe for a boiler.

Background

As is well known, cold drawn precision welded steel pipes for boilers, namely high pressure boiler pipes, are one type of boiler pipes, have high strength, high oxidation corrosion resistance and good stability, and are mainly used for manufacturing various superheater pipes, boiling water pipes, superheated steam pipes and the like which work in ultra-high temperature and ultra-high pressure environments, in daily use, the temperature is required to be ensured not to be lost, and the energy conversion efficiency of fuel is improved.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a novel cold-drawn precision welded steel tube for a boiler.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel cold drawing precision welding steel pipe for boiler, includes precision welding steel pipe body, precision welding steel pipe includes outer tube and inner tube, be equipped with the heat preservation on the inner wall of outer tube, the inboard of heat preservation is equipped with the rubber layer, the inner tube with be equipped with splicing mechanism between the rubber layer, splicing mechanism includes guide way and guide bar, the guide way is seted up one side of rubber layer, the guide bar is installed the outside of inner tube, the guide bar supports on the guide way, the guide way reaches the guide bar is T font structure, the butt joint groove has been seted up to the both sides of guide way, the screw hole has been seted up to the one end of guide bar, the spread groove has been seted up to the both sides of screw hole, be equipped with the fixture block on the spread groove, the chute has been seted up to the one end of fixture block, be equipped with the screw thread post on the screw hole, the one end of screw post is equipped with the conical head, splicing mechanism is equipped with two and symmetry setting.

In order to facilitate the use of the threaded column by personnel, the utility model is improved in that the other end of the threaded column is provided with a screwing block.

In order to improve the tightness between the threaded column and the threaded hole, the utility model is improved in that a sealing ring is arranged on one side of the screwing block.

In order to enable the clamping block to be more stably abutted against the butt joint groove, the utility model is improved in that the clamping block is matched with the butt joint groove.

(III) beneficial effects

Compared with the prior art, the utility model provides a novel cold-drawn precision welded steel tube for a boiler, which has the following beneficial effects:

this novel cold drawing precision welded steel pipe for boiler is equipped with two and symmetry setting through splicing mechanism to can make inner tube and outer tube more firm fix together, can play effectual heat preservation effect between outer tube and the inner tube through the heat preservation, thereby can receive the difference in temperature when expansion appears in outer tube or inner tube, the inboard rubber layer of heat preservation receives the extrusion and takes place deformation, thereby can prevent that outer tube and inner tube from extruding each other and appearing cracked condition, thereby effectively guarantee the stability between precision welded steel pipe body and the outside installation fixed knot structure.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a left side semi-sectional view of a partially enlarged construction of the outer tube of FIG. 1 in accordance with the present utility model;

fig. 3 is a front semi-sectional view of the structure of the present utility model.

In the figure: 1. an outer tube; 2. an inner tube; 3. a heat preservation layer; 4. a rubber layer; 5. a guide bar; 6. a butt joint groove; 7. a threaded hole; 8. a clamping block; 9. a chute; 10. a threaded column; 11. a conical head; 12. twisting blocks; 13. and (3) sealing rings.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the utility model relates to a novel cold-drawn precision welded steel tube for a boiler, which comprises a precision welded steel tube body, wherein the precision welded steel tube comprises an outer tube 1 and an inner tube 2, an insulating layer 3 is arranged on the inner wall of the outer tube 1, a rubber layer 4 is arranged on the inner side of the insulating layer 3, a splicing mechanism is arranged between the inner tube 2 and the rubber layer 4, the splicing mechanism comprises a guide groove and a guide strip 5, the guide groove is arranged on one side of the rubber layer 4, the guide strip 5 is arranged on the outer side of the inner tube 2, the guide strip 5 is propped against the guide groove, the guide groove and the guide strip 5 are in a T-shaped structure, butt joint grooves 6 are arranged on two sides of the guide groove, a threaded hole 7 is arranged at one end of the guide strip 5, connecting grooves are arranged on two sides of the threaded hole 7, clamping blocks 8 are arranged on the connecting grooves, the chute 9 is arranged at one end of the clamping block 8, the threaded hole 7 is provided with a threaded column 10, one end of the threaded column 10 is provided with a conical head 11, the splicing mechanism is provided with two symmetrical grooves, in the embodiment, a person inserts the guide strip 5 in the splicing mechanism into the guide groove, at the moment, the connecting grooves at two sides of the threaded hole 7 are just aligned with the butt joint groove 6, the person connects the threaded column 10 with the threaded hole 7, the conical head 11 at one end of the threaded column 10 contacts the chute 9 arranged at one end of the clamping block 8 in the two connecting grooves, so that the clamping block 8 is extruded, the clamping block 8 moves towards the opposite direction of the butt joint groove 6, so that one end of the clamping block 8 is propped against the butt joint groove 6, at the moment, the clamping block 8 is simultaneously positioned in the butt joint groove 6 and the connecting groove, so that the inner pipe 2 and the outer pipe 1 are fixed together, the two symmetrical grooves are arranged through the splicing mechanism, thereby can make inner tube 2 and outer tube 1 more firm fixed together, can play effectual heat preservation effect between outer tube 1 and the inner tube 2 through heat preservation 3 to can receive the difference in temperature when expansion appears in outer tube 1 or inner tube 2, the inboard rubber layer 4 of heat preservation 3 receives the extrusion and takes place deformation, thereby can prevent that outer tube 1 and inner tube 2 from extruding each other and appearing cracked condition, thereby effectively guarantee the stability between precision welding steel pipe body and the outside installation fixed knot construct.

The screw column 10 is inconvenient for a person to rotate, and in order to solve the above problem, the screw column 10 is provided with a screw block 12 at the other end thereof, and the screw block 12 is rotated, so that the person can rotate the screw column 10 conveniently, and the person can use the screw column 10 conveniently.

In order to meet the above requirement, a sealing ring 13 is provided on one side of the screw block 12, and the screw block 12 and the screw hole 7 can be sealed by the sealing ring 13 on one side of the screw block 12, so that the sealing property between the screw column 10 and the screw hole 7 can be improved.

Above-mentioned needs fixture block 8 more stable support in docking groove 6, in order to satisfy above-mentioned demand, fixture block 8 with docking groove 6 looks adaptation is through fixture block 8 and docking groove 6 looks adaptation to can make fixture block 8 more stable support on docking groove 6, thereby make the guide block fix more firmly in the guide way.

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

Claims

1. The utility model provides a novel cold drawing precision welding steel pipe for boiler, includes precision welding steel pipe body, a serial communication port, precision welding steel pipe includes outer tube (1) and inner tube (2), be equipped with heat preservation (3) on the inner wall of outer tube (1), the inboard of heat preservation (3) is equipped with rubber layer (4), inner tube (2) with be equipped with splice mechanism between rubber layer (4), splice mechanism includes guide way and guide bar (5), the guide way is seted up one side of rubber layer (4), install guide bar (5) the outside of inner tube (2), guide bar (5) are supported on the guide way, the guide way with guide bar (5) all are T font structure, butt joint groove (6) have been seted up to the both sides of guide way, screw hole (7) have been seted up to the one end of guide bar (5), be equipped with fixture block (8) on the spread groove, chute (9) have been seted up to the one end of fixture block (8), screw hole (7) are gone up one side of rubber layer (4), screw thread (10) have set up screw thread (10), and two thread post (11) set up.

2. The novel cold-drawn precision welded steel tube for a boiler according to claim 1, wherein the other end of the threaded column (10) is provided with a screwing block (12).

3. A new cold drawn precision welded steel tube for boiler according to claim 2, characterized in that one side of the screw block (12) is provided with a sealing ring (13).

4. A new cold drawn precision welded steel tube for boilers as claimed in claim 3, characterized in that said clamping block (8) is adapted to said butt joint groove (6).