Novel efficient corrosion-resistant radiant tube

Abstract

The utility model relates to a novel efficient corrosion-resistant radiant tube which comprises a gas pipeline, a connecting sleeve is fixedly connected to the top of the gas pipeline in a sleeved mode, a tube body is movably connected to an inner cavity of the connecting sleeve in a sleeved mode, a burner is fixedly connected to the upper end of the tube body, and the lower end of the tube body penetrates into the gas pipeline. A plurality of fins are fixedly connected to the surface of the pipe body, a sealing sleeve is fixedly connected to the upper end of the surface of the pipe body in a sleeved mode, the sealing sleeve is movably connected into a connecting sleeve in a sleeved mode, and the side surface of the sealing sleeve is attached to the side surface of the inner wall of the connecting sleeve. The fixing plate can be detached and fixed on the connecting sleeve, so that the pipe body can be detached and installed on the gas pipeline conveniently, the pipe body or the fins can be replaced conveniently when damaged, and the sealing sleeve can achieve the sealing effect after the pipe body is installed. And coal gas is prevented from permeating out of the coal gas pipeline from the connecting sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of preheating gas containing corrosive media, in particular to a new type of high-efficiency and corrosion-resistant radiation tube. Background Art

[0002] Radiant tubes are pipes that extend in straight lines from the center in all directions. They are non-central pipes (or main pipes) used to transport materials from the main pipes to designated or non-designated addresses. Radiant tubes are mainly used in heating furnaces and are the main heating elements of heating furnaces. Their types mainly include gas-fired radiant tubes and electric heating radiant tubes.

[0003] The existing patent (Announcement No.: CN203517804U) discloses a corrosion-resistant radiation tube for high-temperature preheating of coal gas, including a burner, a tube body and fins, wherein the burner is arranged at one end of the tube body, fins are arranged on the outer wall of the tube body, and a high-temperature resistant coating is arranged on the inner wall of the tube body. In the process of implementing the solution, the inventor found that the following problems in the prior art have not been well solved: the tube body of the existing device is fixed in the coal gas channel, and it is inconvenient to remove the tube body or fins from the coal gas channel for replacement when they are damaged. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of high-efficiency corrosion-resistant radiation tube to solve the problems mentioned in the above background technology.

[0005] The technical solution of the utility model is a new type of efficient and corrosion-resistant radiation tube, comprising a gas pipeline, a connecting sleeve is fixedly sleeved on the top of the gas pipeline, a tube body is movably sleeved in the inner cavity of the connecting sleeve, a burner is fixedly connected to the upper end of the tube body, the lower end of the tube body penetrates into the gas pipeline, a plurality of ribs are fixedly connected to the surface of the tube body, a sealing sleeve is fixedly sleeved on the upper end of the surface of the tube body, the sealing sleeve is movably sleeved in the interior of the connecting sleeve, the side surface of the sealing sleeve is fitted with the side surface of the inner wall of the connecting sleeve, a fixing plate is fixedly sleeved on the upper end of the surface of the tube body, sockets are provided on the left and right sides of the fixing plate, screws are fixedly connected to the left and right sides of the top end of the connecting sleeve, each of the screws is movably sleeved in the interior of an adjacent socket, and a nut is threadedly sleeved on the upper end of each of the screws.

[0006] In one embodiment, the bottom surface of the fixing plate fits with the upper end of the connecting sleeve, and the lower end of the nut fits with the top surface of the fixing plate.

[0007] In one embodiment, there are a plurality of connecting sleeves, and the connecting sleeves are linearly arranged from left to right.

[0008] In one embodiment, the distribution area of ​​the fins on the outer surface of the tube body is 60% to 70%, and the fins are made of stainless steel.

[0009] In one embodiment, the outer surface of the tube body is provided with a corrosion-resistant coating, and the inner wall of the tube body is provided with a high-temperature resistant coating. Both the high-temperature resistant coating and the corrosion-resistant coating are ceramic coatings with a thickness of 1 to 2 mm.

[0010] In one embodiment, the sealing sleeve is made of fluorosilicone rubber, and the lower end of the sealing sleeve penetrates into the gas pipeline.

[0011] The beneficial effects provided by the utility model are:

[0012] Through the cooperation between the various components, the fixing plate can be disassembled and fixed on the connecting sleeve, so that the pipe body can be conveniently disassembled and installed on the gas pipeline, so that it is convenient to replace the pipe body or fins when they are damaged, and after the pipe body is installed, the sealing sleeve can play a sealing effect to prevent gas from penetrating from the connecting sleeve to the outside of the gas pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is the main cross-sectional view of the connecting sleeve;

[0015] Figure 3 This is the main cross-sectional view of the fixed plate.

[0016] In the attached figure, 1, gas pipeline; 2, connecting sleeve; 3, pipe body; 4, burner; 5, rib; 6, sealing sleeve; 7, fixing plate; 8, socket; 9, screw; 10, nut. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.

[0018] It should be understood that the same or similar numbers in the drawings of the embodiments correspond to the same or similar parts. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0019] In one embodiment, Figure 1-3 As shown, the high-efficiency corrosion-resistant new type radiation tube includes a gas pipeline 1, a connecting sleeve 2 is fixedly sleeved on the top of the gas pipeline 1, a tube body 3 is movably sleeved in the inner cavity of the connecting sleeve 2, a burner 4 is fixedly connected to the upper end of the tube body 3, and the lower end of the tube body 3 penetrates into the gas pipeline 1, a plurality of ribs 5 are fixedly connected to the surface of the tube body 3, a sealing sleeve 6 is fixedly sleeved on the upper end of the surface of the tube body 3, the sealing sleeve 6 is movably sleeved in the connecting sleeve 2, and the side surface of the sealing sleeve 6 is fitted with the side surface of the inner wall of the connecting sleeve 2, a fixing plate 7 is fixedly sleeved on the upper end of the surface of the tube body 3, and sockets 8 are provided on the left and right sides of the fixing plate 7, and screws 9 are fixedly connected to the left and right sides of the top of the connecting sleeve 2, each screw 9 is movably sleeved in the adjacent socket 8, and a nut 10 is threadedly sleeved on the upper end of each screw 9.

[0020] In order to prevent the fixing plate 7 from moving up and down when installed on the connecting sleeve 2 , the bottom surface of the fixing plate 7 fits with the upper end of the connecting sleeve 2 , and the lower end of the nut 10 fits with the top surface of the fixing plate 7 .

[0021] In order to install a plurality of pipe bodies 3 on the gas pipeline 1, the number of connecting sleeves 2 is several, and the several connecting sleeves 2 are linearly arranged from left to right.

[0022] In order to ensure the heat exchange effect of the fins 5 , the distribution area of ​​the fins 5 on the outer surface of the tube body 3 is 60% to 70%, and the fins 5 are made of stainless steel.

[0023] In order to improve the high temperature resistance and corrosion resistance of the tube body 3, the outer surface of the tube body 3 is provided with a corrosion-resistant coating, and the inner wall of the tube body 3 is provided with a high temperature resistant coating. Both the high temperature resistant coating and the corrosion-resistant coating are ceramic coatings with a thickness of 1 to 2 mm.

[0024] In order to make the sealing sleeve 6 have high temperature resistance and corrosion resistance while having a sealing effect, the sealing sleeve 6 is made of fluorosilicone rubber, and the lower end of the sealing sleeve 6 penetrates into the gas pipeline 1.

[0025] Working principle: When it is necessary to remove the pipe body 3 and the fin 5 from the gas pipe 1, the nut 10 can be twisted to remove it from the screw 9, the fixing of the fixing plate 7 can be released, and then the pipe body 3 can be pulled upward to remove it from the gas pipe 1. When installing the pipe body 3, first insert the pipe body 3 into the connecting sleeve 2, and the lower end of the pipe body 3 is inserted into the inside of the gas pipe 1 from the bottom of the connecting sleeve 2, and the sealing sleeve 6 is inserted into the inside of the connecting sleeve 2, so as to play a sealing role and prevent gas from entering the connecting sleeve 2. The pipe body 3 is penetrated into the external environment, and then the fixing plate 7 is sleeved on the two screws 9 on the connecting sleeve 2 through the two jacks 8 on the left and right sides, until the bottom surface of the fixing plate 7 fits with the upper end surface of the connecting sleeve 2, and finally the nut 10 is threadedly sleeved on the upper end of the screw 9 to fix the fixing plate 7 on the connecting sleeve 2, thereby completing the installation of the pipe body 3. Through the above-mentioned method, the pipe body 3 is convenient to disassemble and install on the gas pipeline 1, so that it is convenient to replace the pipe body 3 or the rib 5 when it is damaged.

[0026] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. High-efficiency and corrosion-resistant new radiant tube, characterized by: It comprises a gas pipeline, the top of which is fixedly sleeved with a connecting sleeve, the inner cavity of which is movably sleeved with a pipe body, the upper end of which is fixedly connected with a burner, the lower end of which passes through the inside of the gas pipeline, the surface of which is fixedly connected with a plurality of ribs, the upper end of which is fixedly sleeved with a sealing sleeve, which is movably sleeved inside the connecting sleeve, the side surface of which is fitted with the side surface of the inner wall of the connecting sleeve, the upper end of which is fixedly sleeved with a fixing plate, the left and right sides of which are provided with insertion holes, the left and right sides of the top end of the connecting sleeve are fixedly connected with screws, each of which is movably sleeved inside an adjacent insertion hole, and a nut is threadedly sleeved on the upper end of each of which.

2. The high-efficiency, corrosion-resistant new radiant tube according to claim 1, characterized in that: The bottom surface of the fixing plate is fitted with the upper end of the connecting sleeve, and the lower end of the nut is fitted with the top surface of the fixing plate.

3. The high-efficiency, corrosion-resistant new radiant tube according to claim 1, characterized in that: The number of the connecting sleeves is several, and the connecting sleeves are linearly arranged from left to right.

4. The high-efficiency, corrosion-resistant new radiant tube according to claim 1, characterized in that: The distribution area of ​​the fins on the outer surface of the tube body is 60% to 70%, and the fins are made of stainless steel.

5. The high-efficiency, corrosion-resistant new radiant tube according to claim 1, characterized in that: The outer surface of the tube body is provided with a corrosion-resistant coating, and the inner wall of the tube body is provided with a high-temperature resistant coating. Both the high-temperature resistant coating and the corrosion-resistant coating are ceramic coatings with a thickness of 1 to 2 mm.

6. The high-efficiency, corrosion-resistant new radiant tube according to claim 1, characterized in that: The sealing sleeve is made of fluorosilicone rubber, and the lower end of the sealing sleeve penetrates into the gas pipeline.

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