阅读说明：本技术 一种可提高辐射管使用寿命的保护装置 (Protection device capable of prolonging service life of radiant tube ) 是由 杨光勇 张澍 段豫杭 余广松 陈景阁 于 2019-11-01 设计创作，主要内容包括：本发明公开了一种可提高辐射管使用寿命的保护装置,包括：管身存在温度差的辐射管,所述辐射管贯穿钢结构且所述辐射管的端口位于所述钢结构上方；固定设置在所述辐射管端口外壁面上的上面板；固定设置在所述钢结构上且位于所述上面板下方的下面板；以及伸缩件,其设置在所述辐射管的端口处且位于所述上面板与所述下面板之间用于补偿所述辐射管因热胀冷缩原理而产生的轴向方向上的变形量；其中,所述伸缩件的顶部与所述上面板连接、底部与所述下面板连接。该保护装置能够有效的延长辐射管的使用寿命,具有结构简单、使用方便的优点。(The invention discloses a protection device capable of prolonging the service life of a radiant tube, which comprises: the radiant tube with a tube body with a temperature difference penetrates through a steel structure, and a port of the radiant tube is positioned above the steel structure; the upper panel is fixedly arranged on the outer wall surface of the port of the radiant tube; the lower panel is fixedly arranged on the steel structure and is positioned below the upper panel; the telescopic piece is arranged at the port of the radiant tube and positioned between the upper panel and the lower panel and is used for compensating the deformation of the radiant tube in the axial direction caused by the principle of expansion with heat and contraction with cold; wherein, the top of extensible member with the top panel is connected, the bottom with the lower panel is connected. The protection device can effectively prolong the service life of the radiant tube and has the advantages of simple structure and convenience in use.)

1. A protection device capable of prolonging the service life of a radiant tube is characterized by comprising:

the radiant tube (20) with the tube body having temperature difference, the radiant tube (20) penetrates through a steel structure (80) and the port of the radiant tube (20) is positioned above the steel structure (80);

an upper panel (50) fixedly arranged on the outer wall surface of the port of the radiant tube (20);

a lower panel (60) fixedly arranged on the steel structure (80) and positioned below the upper panel (50); and

a telescopic member (70) arranged at the port of the radiant tube (20) and positioned between the upper panel (50) and the lower panel (60) for compensating the deformation of the radiant tube (20) in the axial direction caused by the principle of expansion and contraction;

wherein the top of the telescopic piece (70) is connected with the upper panel (50) and the bottom is connected with the lower panel (60).

2. The protection device for improving the service life of the radiant tube as claimed in claim 1, characterized in that the radiant tube (20) is provided with a first port (21) and a second port (22), wherein the first port (21) is provided with a burner (30) and the second port (22) is provided with a heat exchanger (40).

3. The protection device for improving the service life of the radiant tube as claimed in claim 2, wherein the radiant tube (20) is in a shape of "U", a tube body of the radiant tube (20) on the side where the burner (30) is installed is defined as a tube body a, a tube body of the radiant tube (20) on the side where the heat exchanger (40) is installed is defined as a tube body b, wherein the temperature of the tube body a is higher than that of the tube body b, and the protection device is arranged at the second port (22).

4. The protection device for improving the service life of the radiant tube as claimed in claim 2, characterized in that the burner (30) is detachably arranged on the first port (21) through a first flange (31); the heat exchanger (40) is detachably arranged on the second port (22) through a second flange (41).

5. The protection device for increasing the service life of a radiant tube as claimed in claim 1, characterized in that the deformation of the telescopic member (70) is greater than the axial deformation of the radiant tube (20) due to the principle of expansion and contraction.

6. The protection device for increasing the service life of the radiant tube as claimed in claim 1, characterized in that the radiant tube (20) is arranged on the wall insulation (10) by means of the steel structure (80).

7. The protection device for increasing the service life of a radiant tube as claimed in claim 1, wherein said upper panel (50) is welded to the outer wall surface of the port of said radiant tube (20), wherein said upper panel (50) is flush with the port of said radiant tube (20).

8. The protector for increasing the service life of a radiant tube as set forth in claim 1, characterized in that the lower panel (60) is welded to the steel structure (80).

9. The protection device for increasing the service life of a radiant tube as claimed in claim 1, characterized in that the outer ring of said telescopic member (70) is coated with a protective layer (90).

10. The radiant tube service life enhancing protection device of claim 1 wherein said telescoping member (70) is a temperature resistant, sealed expansion joint.

Technical Field

The invention relates to the technical field of metallurgical equipment, in particular to a protection device capable of prolonging the service life of a radiant tube.

Background

A radiant tube is a heating device that transfers heat to an object to be heated in the form of heat radiation mainly through the surface of a heated tube by using heat generated by combustion of combustion gas in the tube. In order to ensure the temperature uniformity and radiation range in the heat transfer process in the radiation tube, the radiation tube mostly adopts a U-shaped or W-shaped structure. Generally, a nozzle is installed at one end of a radiant tube, when the nozzle works, the temperature difference between a burning end and a non-burning end of the radiant tube is large, the radiant tube has a problem of uneven temperature along the flow direction of combustion gas, and the problem is more obvious along with the increase of the length of the radiant tube. The tube body on the combustion side with high temperature generates a certain deformation amount due to the principle of expansion with heat and contraction with cold, and the tube body on the non-combustion side is easily damaged due to the influence of the deformation amount for a long time, so that a protection device capable of prolonging the service life of the radiant tube needs to be researched.

Disclosure of Invention

Aiming at the defects in the technology, the invention provides the protection device which is simple in structure and can prolong the service life of the radiant tube.

The technical scheme adopted by the invention for solving the technical problems is as follows: a protection device capable of prolonging the service life of a radiant tube comprises: the radiant tube with a tube body with a temperature difference penetrates through a steel structure, and a port of the radiant tube is positioned above the steel structure; the upper panel is fixedly arranged on the outer wall surface of the port of the radiant tube; the lower panel is fixedly arranged on the steel structure and is positioned below the upper panel; the telescopic piece is arranged at the port of the radiant tube and positioned between the upper panel and the lower panel and is used for compensating the deformation of the radiant tube in the axial direction caused by the principle of expansion with heat and contraction with cold; wherein, the top of extensible member with the top panel is connected, the bottom with the lower panel is connected.

Preferably, the radiant tube has a first port and a second port, wherein the first port is provided with a burner, and the second port is provided with a heat exchanger.

Preferably, the radiant tube is "U" style of calligraphy, the radiant tube is installed the pipe shaft definition of burner side is pipe shaft a, the radiant tube is installed the pipe shaft definition of heat exchanger side is pipe shaft b, wherein, the temperature of pipe shaft a is higher than the temperature of pipe shaft b, protection device sets up second port department.

Preferably, the burner is detachably arranged on the first port through a first flange; the heat exchanger is detachably arranged on the second port through a second flange.

Preferably, the deformation amount of the telescopic member is larger than the deformation amount of the radiant tube in the axial direction caused by the principle of expansion with heat and contraction with cold.

Preferably, the radiant tube is arranged on a wall heat insulation layer through the steel structure.

Preferably, the upper panel is welded to an outer wall surface of the port of the radiant tube, wherein the upper panel is flush with the port of the radiant tube.

Preferably, the lower panel is arranged on the steel structure in a welding mode.

Preferably, the outer ring of the telescopic piece is coated with a protective layer.

Preferably, the expansion piece is a temperature-resistant and sealed expansion joint.

Compared with the prior art, the invention has the beneficial effects that: the protection device capable of prolonging the service life of the radiant tube, provided by the invention, can compensate the deformation of the radiant tube in the axial direction caused by the principle of expansion with heat and contraction with cold, can effectively prolong the service life of the radiant tube, and has the advantages of simple structure and convenience in use.

Drawings

FIG. 1 is a schematic view of the position relationship between the protection device for increasing the service life of the radiant tube and the radiant tube according to the present invention;

FIG. 2 is an enlarged schematic view of region C of FIG. 1;

FIG. 3 is a schematic view showing the installation relationship of the burner and the heat exchanger of the present invention.

In the figure: 10. a wall heat insulation layer; 20. a radiant tube; 21. a first port; 22. a second port; 30. burning a nozzle; 31. a first flange; 40. a heat exchanger; 41. a second flange; 50. an upper panel; 60. a lower panel; 70. a telescoping member; 80. a steel structure; 90. and (4) a protective layer.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.

As shown in fig. 1 to 3, the present invention provides a protection device for increasing the service life of a radiant tube, which is disposed at a low temperature port of a radiant tube 20, and comprises: the radiant tube 20 with the tube body with temperature difference penetrates through the steel structure 80, and the port of the radiant tube 20 is positioned above the steel structure 80; an upper panel 50 fixedly installed on an outer wall surface of the port of the radiant tube 20; a lower panel 60 fixedly disposed on the steel structure 80 and positioned below the upper panel 50; and the expansion piece 70 is sleeved at the port of the radiant tube 20 and is positioned between the upper panel 50 and the lower panel 60 for compensating the deformation of the radiant tube 20 in the axial direction caused by the principle of expansion with heat and contraction with cold; wherein the top of the telescoping member 70 is connected to the upper panel 50 and the bottom is connected to the lower panel 60. In the scheme, the radiant tube 20 is U-shaped, the radiant tube 20 is provided with a first port 21 and a second port 22, the first port 21 is provided with a burner 30, the second port 22 is provided with a heat exchanger 40, the first port 21 is a high-temperature port, and the second port 22 is a low-temperature port; the pipe body of the radiant tube 20 on the side where the burner 30 is installed is defined as a pipe body a, the pipe body of the radiant tube 20 on the side where the heat exchanger 40 is installed is defined as a pipe body b, wherein the temperature of the pipe body a on the side where the burner 30 is installed is higher than the temperature of the pipe body b, so that a temperature difference is formed, the protection device is arranged at the second port 22, specifically, the first port 21 and the second port 22 of the radiant tube 20 extend to the upper side of the steel structure 80, and the main body part of the radiant tube 20 is located below the steel structure 80, namely, the port and the main body part of the radiant tube 20 are respectively located at two opposite sides of the steel structure 80, not limited to the upper side and the lower side, but also can be the left side and the right; through holes for the first port 21 and the second port 22 to penetrate are formed in the steel structure 80, when the burner 30 works, the temperature of the tube body a is higher than that of the tube body b, a temperature difference exists between the tube body a and the tube body b, the tube body a can generate a certain deformation amount in the axial direction due to heating, the deformation amount can generate a pulling force on the tube body b along the axial direction, if a protection device is not arranged, the tube body b cannot compensate the deformation amount generated by the tube body a, and the service life of the radiant tube 20 can be shortened due to the influence of the deformation amount on the tube body b for a long time; in this scheme, through set up protection device in the lower second port 22 department of temperature, can compensate the produced axial deflection of shaft a, can effectual extension radiant tube 20's life, when protection device compensated the axial deflection of shaft a, shaft b has an axial displacement volume relative to steel construction 80.

As an embodiment of the present solution, as shown in fig. 1 to 3, the burner 30 is detachably disposed on the first port 21 through a first flange 31; the heat exchanger 40 is detachably arranged on the second port 22 through a second flange 41; specifically, the heat exchanger 40 is detachably connected to the upper panel 50 via the second flange 41.

As an embodiment of the present disclosure, the deformation amount of the expansion member 70 is larger than the deformation amount of the radiant tube 20 in the axial direction due to the principle of expansion and contraction.

As an embodiment of the present solution, as shown in fig. 1, the radiant tube 20 is disposed on the wall insulation 10 through a steel structure 80.

As an embodiment of the present solution, as shown in fig. 2, the upper panel 50 is welded to the outer wall surface of the port of the radiant tube 20, wherein the upper panel 50 is flush with the port of the radiant tube 20.

As an example of this solution, as shown in fig. 2, the lower panel 60 is welded to a steel structure 80.

As an embodiment of this solution, as shown in fig. 2 and 3, the outer ring of the telescopic member 70 is covered with a protective layer 90.

In one embodiment of the present disclosure, the expansion member 70 is a temperature resistant, sealed expansion joint.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.