CN215560524U

CN215560524U - Special-shaped structure pipe fitting welding seam heat treatment heater

Info

Publication number: CN215560524U
Application number: CN202121313877.8U
Authority: CN
Inventors: 蒋林弟; 沈骏; 李建成; 杨洁; 杨钟灵; 杨轶
Original assignee: Shanghai Electric Power Construction Co Ltd
Current assignee: Shanghai Electric Power Construction Co Ltd
Priority date: 2021-06-12
Filing date: 2021-06-12
Publication date: 2022-01-18
Anticipated expiration: 2031-06-12

Abstract

The utility model discloses a special-shaped structure pipe fitting weld heat treatment heater which comprises a pipe, wherein a pipe plate weld is arranged on the outer side of the pipe, a limiting plate is arranged on the outer side of the pipe plate weld, a heater is arranged on the outer side of the limiting plate, and a fixed iron wire is arranged on the outer side of the heater. The special-shaped structure pipe fitting weld heat treatment heater adjusts the length-width ratio to be 9:1 for when limiting plate heat treatment, all heating area that can make full use of heater, the temperature is even, and the control of heating and cooling heat preservation is very accurate, and the performance of whole fillet weld after the heat treatment can both be guaranteed, has avoided unnecessary reworking, and dwindles the heater unit festival size for 20 x 15mm, can improve the flexibility of heater like this, makes the energy-conserving embedding narrow and small space between two limiting plates of unit, improves the heat transfer efficiency of heater.

Description

Special-shaped structure pipe fitting welding seam heat treatment heater

Technical Field

The utility model belongs to the technical field of power plant boiler pipeline installation, and particularly relates to a special-shaped structure pipe fitting weld seam heat treatment heater.

Background

Heat treatment in the installation of boiler pipelines in a power plant is an important process in welding construction, and under the normal condition, the main object of heat treatment is various pressure-bearing pipeline welded junctions. In the pipeline installation construction, steel plates are sometimes required to be welded on a pressure-bearing pipeline for supporting or limiting (the term is called a limiting plate), and fillet welds of the tube plates also need to be subjected to postweld heat treatment. The conventional crawler-type far infrared heater cannot cover the welding line, and the heat treatment efficiency is poor. If the flame heating mode is adopted for heat treatment, the accuracy of temperature control is difficult to ensure. Therefore, a novel heater for heat treatment of the welding line of the special-shaped pipe fitting is needed to solve the problems and meet the requirements of people.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a special-shaped structure pipe fitting weld heat treatment heater to solve the problems that the spacing plate gap is small, the heater cannot be tightly attached to the weld, and the heater is difficult to bind and fix on a pipe plate structure.

In order to achieve the purpose, the utility model provides the following technical scheme: a heater for heat treatment of welding seams of special-shaped structural pipe fittings comprises

The heating device comprises a pipe, wherein a pipe plate welding line is arranged on the outer side of the pipe, a limiting plate is arranged on the outer side of the pipe plate welding line, a heater is arranged on the outer side of the limiting plate, and a fixed iron wire is arranged on the outer side of the heater.

Preferably, the heater has an aspect ratio of 9:1, a length of 450 mm and a width of 50 mm.

Preferably, the unit cell size of the heater is 20 x 15 mm.

Preferably, the unit section of the heater is embedded between the two limit plates, the distance between the fillet weld toes of the two adjacent limit plates is about 14-16 mm, and the length, the width and the thickness of each limit plate are 300, 150 and 10 (mm).

Preferably, the heater is fixed on the pipe by binding and fixing iron wires on the part of the limiting plate with the length exceeding that of the heater.

Preferably, the heater covers a length of the restriction plate in a radial direction.

The utility model has the technical effects and advantages that: the special-shaped structure pipe fitting weld heat treatment heater adjusts the length-width ratio to be 9:1 for when limiting plate heat treatment, all heating area that can make full use of heater, the temperature is even, and the control of heating and cooling heat preservation is very accurate, and the performance of whole fillet weld after the heat treatment can both be guaranteed, has avoided unnecessary reworking, and dwindles the heater unit festival size for 20 x 15mm, can improve the flexibility of heater like this, makes the energy-conserving embedding narrow and small space between two limiting plates of unit, improves the heat transfer efficiency of heater.

Drawings

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

FIG. 2 is a schematic side view of the present invention.

In the figure: 1-heater, 2-limiting plate, 3-tube plate welding seam, 4-tube and 5-fixed iron wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a heater for heat treatment of a welding seam of a special-shaped structure pipe fitting shown in figures 1 and 2, which comprises

Tube 4, tube 4 outside is equipped with tube sheet welding seam 3, and the 3 outsides of tube sheet welding seam are equipped with limiting plate 2, and the 2 outsides of limiting plate are equipped with heater 1, and the heater 1 outside is equipped with fixed iron wire 5.

Specifically, the heater 1 has an aspect ratio of 9:1, a length of 450 mm, and a width of 50 mm.

Specifically, the unit cell size of the heater 1 is 20 × 15 mm.

Specifically, the unit section of the heater 1 is embedded between two limiting plates 2, the distance between fillet weld toes of the two adjacent limiting plates 2 is about 14-16 mm, and the length, the width and the thickness of the limiting plates 2 are 300, 150 and 10 (mm).

Specifically, the heater 1 is fixed on the pipe 4 by binding and fixing iron wires 5 on the limiting plate 2 with the length of the heater 1 exceeding the length.

Specifically, the heater 1 covers the length of the restriction plate 2 in the radial direction.

The working principle is as follows: in the use process of the special-shaped structure pipe welding seam heat treatment heater, the length-width ratio of the heater 1 is adjusted to 9:1, upwards link to each other through two heaters 1 and can satisfy limiting plate 2, and it is moderate to have kept 1 weight of heater, the operation of being convenient for, the fixed iron wire 5 of 2 ligatures of partial limiting plate that 1 length of heater surpasses fixes heater 1 on pipe 4, when being used for 2 thermal treatment of limiting plate, all heating areas that can make full use of heater 1, the temperature is even, the heat retaining control of heating and cooling is very accurate, 1 unit festival size of heater reduces to 20 x 15mm, can improve the flexibility of heater 1 like this, the manual operation of being convenient for, make the energy-conserving narrow space of embedding between two limiting plates of unit, the heat transfer efficiency of improvement heater 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a dysmorphism structure pipe fitting welding seam heat treatment heater which characterized in that: comprises that

The pipe (4), pipe (4) outside is equipped with tube sheet welding seam (3), tube sheet welding seam (3) outside is equipped with limiting plate (2), limiting plate (2) outside is equipped with heater (1), heater (1) outside is equipped with fixed iron wire (5).

2. The heat treatment heater for the welding seam of the special-shaped structural pipe fitting as claimed in claim 1, is characterized in that: the length-width ratio of the heater (1) is 9:1, the length is 450 mm, and the width is 50 mm.

3. The heat treatment heater for the welding seam of the special-shaped structural pipe fitting as claimed in claim 1, is characterized in that: the unit cell size of the heater (1) is 20 x 15 mm.

4. The heat treatment heater for the welding seam of the special-shaped structural pipe fitting as claimed in claim 1, is characterized in that: the unit section of the heater (1) is embedded between the two limiting plates (2), the distance between fillet weld toes of the two adjacent limiting plates (2) is about 14-16 mm, and the length, the width and the thickness of the limiting plates (2) are 300 multiplied by 150 multiplied by 10 (mm).

5. The heat treatment heater for the welding seam of the special-shaped structural pipe fitting as claimed in claim 1, is characterized in that: and iron wires (5) are bound and fixed on the limiting plates (2) with the length exceeding that of the heater (1) so as to fix the heater (1) on the pipe (4).

6. The heat treatment heater for the welding seam of the special-shaped structural pipe fitting as claimed in claim 1, is characterized in that: the heater (1) covers the length of the limiting plate (2) in the radial direction.