Heat exchange device of industrial boiler

Abstract

The invention relates to the technical field of industrial boilers, in particular to a heat exchange device of an industrial boiler, which comprises an industrial boiler membrane wall main body, the inner wall of the industrial boiler membrane wall main body is fixedly connected with a plurality of second reset springs, and one end of each second reset spring is fixedly connected with a moving block. The device has the beneficial effects that when the second guide rod slides into the surface of the third inclined surface along the surface of the second inclined surface, the inclined surface angle of the third inclined surface enables the second guide rod to drive the moving block to return to the inclined state; and at the moment, a fourth guide rod and a third rolling ball are in an inclined state and are stressed to move to knock the surface of the second heat exchange tube set, so that in the running process of the device, different knocking positions can be continuously changed to achieve a more uniform knocking effect on the heat exchange tube set.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial boilers, in particular to a heat exchange device for an industrial boiler. Background Art

[0002] A boiler heat exchanger is a device that uses heat from waste gas generated by burning coal or other energy sources. Usually, after the waste gas generated by high-temperature combustion in the boiler enters the membrane wall body of the industrial boiler, the high heat of the waste gas is exchanged in the heat exchange tube group through heat conduction, and the heat in the waste gas is transferred to the water in the heat exchange tube group to heat the water in the heat exchange tube. The high-pressure steam generated by the high temperature and high pressure in the heat exchange tube can then be reused.

[0003] However, in the existing heat exchange devices on the market, after the high-temperature exhaust gas enters the membrane wall body of the industrial boiler, the high-temperature exhaust gas contains a large amount of impurities. These impurities will remain and adhere to the surface of the heat exchange tube group when passing through the membrane wall body of the industrial boiler for a long time. Long-term adhesion and accumulation will lead to a decrease in the heat conduction effect of the outer wall of the heat exchange tube, which can easily lead to a deterioration of the heat exchange effect. Therefore, a boiler heat exchange device that can solve this problem is needed. Summary of the Invention

[0004] The present invention provides a heat exchange device for an industrial boiler, which has the beneficial effect of conveniently and evenly cleaning impurities from the outer wall of a heat exchange tube group, thereby solving the problem mentioned in the background art that impurities, when passing through the membrane wall body of an industrial boiler for a long time, may remain and adhere to the surface of the heat exchange tube group. Long-term adhesion and accumulation may lead to a decrease in the heat conduction efficiency of the outer wall of the heat exchange tube, which may easily lead to a poor heat exchange effect. To achieve the above-mentioned object, the present invention provides the following technical solution: A heat exchange device for an industrial boiler comprises an industrial boiler membrane wall body, wherein the inner wall of the membrane wall body of the industrial boiler is fixedly connected to a plurality of second return springs, one end of the second return spring is fixedly connected to a moving block, the outer wall of the moving block is defined by a plurality of evenly distributed through grooves, the inner wall of the through grooves is slidably connected to a fourth guide rod, and the ends of the fourth guide rod are respectively rotatably mounted with a third rolling ball and a fourth rolling ball, the outer wall of the fourth guide rod is fixedly connected to a second fixing plate, one end of the second fixing plate is fixedly connected to a third return spring, the third return spring is sleeved on the fourth guide rod, and the other end of the third return spring is fixedly connected to the outer wall of the moving block.

[0005] As an optional solution of the heat exchange device of an industrial boiler described in the present invention, wherein: a steam relay is fixedly mounted on the outer wall of the membrane wall body of the industrial boiler, an output end of the steam relay is fixedly connected to a second delivery pipe, one end of the second delivery pipe is fixedly connected to a fixing frame, and the second delivery pipe and the fixing frame are in communication with each other; A fixing block is fixedly connected to the interior of the fixing frame, a turbine fan is rotatably mounted on the outer wall of the fixing block, and a first guide rod is fixedly connected to the outer wall of the turbine fan.

[0006] As an optional solution of the heat exchange device of an industrial boiler described in the present invention, one end of the first guide rod is rotatably connected to a mounting frame, the mounting frame is fixedly connected to the outer wall of the membrane wall body of the industrial boiler, the outer wall of the first guide rod is fixedly connected to a toggle wheel, and the end of the toggle wheel is provided with an arc angle.

[0007] As an optional solution of the heat exchange device of an industrial boiler described in the present invention, wherein: a second guide rod is slidably connected to the membrane wall body of the industrial boiler, and a first rolling ball is rotatably mounted on one end of the second guide rod; The outer wall of the second guide rod is fixedly connected to a first fixing plate, the outer wall of the first fixing plate is fixedly connected to a first return spring, the first return spring is sleeved on the second guide rod, and the other end of the first return spring is fixedly connected to the outer wall of the membrane wall body of the industrial boiler.

[0008] As an optional solution for the heat exchange device of an industrial boiler described in the present invention, a second ball is rotatably mounted on the other end of the second guide rod, and the outer wall of the second guide rod is provided with a plurality of evenly distributed first inclined surfaces, second inclined surfaces and third inclined surfaces, and the first inclined surfaces, second inclined surfaces and third inclined surfaces are arranged in a continuous manner.

[0009] As an optional solution of the heat exchange device for an industrial boiler described in the present invention, a third guide rod is fixedly connected to the outer wall of the moving block.

[0010] As an optional solution of the heat exchange device of an industrial boiler described in the present invention, wherein: both ends of the movable block are fixedly connected with a convex head, and the convex head is set as a block with an arc shape; The inner wall of the membrane wall body of the industrial boiler is fixedly connected with two limiting blocks for cooperating with the convex head to limit the moving block.

[0011] As an optional solution of the heat exchange device of an industrial boiler described in the present invention, a first conveying pipe is fixedly connected to the outer wall of the fixed frame, the first conveying pipe is connected to the fixed frame, and one end of the first conveying pipe is connected to the input end of the steam transfer device.

[0012] As an optional solution for the heat exchange device of an industrial boiler described in the present invention, a first heat exchange tube group, a second heat exchange tube group and a third heat exchange tube group are installed inside the membrane wall body of the industrial boiler, and the first heat exchange tube group, the second heat exchange tube group and the third heat exchange tube group are interconnected.

[0013] As an optional solution of the heat exchange device of an industrial boiler described in the present invention, one end of the first heat exchange tube group is connected to the steam transfer device, the outer wall of the membrane wall body of the industrial boiler is fixedly connected to the high-temperature flue gas inlet pipe, the interior of the membrane wall body of the industrial boiler is provided with a combustion chamber, the combustion chamber and the high-temperature flue gas inlet pipe are connected to each other, the other end of the first heat exchange tube group is fixedly connected to the return pipe group, and one end of the return pipe group is fixedly connected to the steam transfer device.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the vibration caused by knocking is promoted by the movement of the second guide rod, which causes impurities in the exhaust gas adhered to the outer walls of the first heat exchange tube group, the second heat exchange tube group and the third heat exchange tube group to fall off, thereby reducing the influence of impurity accumulation on the heat exchange efficiency of the heat exchange tube group.

[0015] 2. In the present invention, when the second guide rod slides along the second inclined surface into the third inclined surface, the inclined angle of the third inclined surface prompts the second guide rod to return to the inclined state with the moving block. At this time, the fourth guide rod and the third rolling ball are in the inclined state and move under force to knock on the surface of the second heat exchange tube group. In this way, different knocking positions can be continuously changed during the operation of the device to achieve a more uniform knocking effect on the heat exchange tube group.

[0016] 3. In the present invention, the flow tube group is designed as a "micro-S" shape and is arranged in the membrane wall. According to the size of the boiler load, three to four groups of tubes can be arranged. The flue gas flows from bottom to top, and the flue gas temperature is also higher at the bottom. The flue gas in the flue gas turning area at the bottom of the combustion chamber horizontally flushes the convection tube, the middle straight tube is a pure longitudinal flushing area, and the outlet area is also a transverse flushing area, which well completes the combined transverse and longitudinal flushing. Although the convection tube is arranged longitudinally, it has the effect of mixed transverse and longitudinal flushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the overall side structure of the present invention; Figure 4 It is a schematic diagram of the side cross-sectional structure of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the partially enlarged structure; Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle; Figure 7 For the present invention Figure 5 A in the middle is an enlarged structural diagram; Figure 8 It is a schematic diagram of a top cross-sectional structure of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point C in the middle.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Industrial boiler membrane wall body; 2. Combustion chamber; 3. High-temperature flue gas inlet pipe; 4. First heat exchange tube group; 5. Return tube group; 6. Steam transfer device; 7. Second heat exchange tube group; 8. Third heat exchange tube group; 9. First delivery pipe; 10. Second delivery pipe; 11. Fixing frame; 12. Mounting frame; 13. Fixing block; 14. Turbofan; 15. First guide rod; 16. Toggle wheel; 17. Arc angle ; 18. Second guide rod; 19. First rolling ball; 20. First fixing plate; 21. First return spring; 22. Second rolling ball; 23. First inclined plane; 24. Second inclined plane; 25. Third inclined plane; 26. Limit block; 27. Second return spring; 28. Moving block; 29. Protrusion; 30. Third guide rod; 31. Through slot; 32. Fourth guide rod; 33. Third rolling ball; 34. Fourth rolling ball; 35. Second fixing plate; 36. Third return spring. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1: This example aims to solve the problem that impurities will remain and adhere to the surface of the heat exchange tube group when passing through the membrane wall of the industrial boiler for a long time. The long-term adhesion and accumulation will cause the heat conduction effect of the outer wall of the heat exchange tube to decrease, which may easily lead to poor heat exchange effect. Please refer to Figure 1 - Figure 9 A heat exchange device for an industrial boiler includes an industrial boiler membrane wall body 1, the inner wall of the industrial boiler membrane wall body 1 is fixedly connected to a plurality of second return springs 27, one end of the second return spring 27 is fixedly connected to a moving block 28, and the outer wall of the moving block 28 is provided with a plurality of evenly distributed through grooves 31, the inner wall of the through groove 31 is slidably connected to a fourth guide rod 32, and the two ends of the fourth guide rod 32 are respectively rotatably installed with a third rolling ball 33 and a fourth rolling ball 34, the outer wall of the fourth guide rod 32 is fixedly connected to a second fixing plate 35, one end of the second fixing plate 35 is fixedly connected to a third return spring 36, the third return spring 36 is sleeved on the fourth guide rod 32, and the other end of the third return spring 36 is fixedly connected to the outer wall of the moving block 28.

[0021] A steam transfer device 6 is fixedly installed on the outer wall of the membrane wall body 1 of the industrial boiler. The output end of the steam transfer device 6 is fixedly connected to a second delivery pipe 10. One end of the second delivery pipe 10 is fixedly connected to a fixing frame 11. The second delivery pipe 10 and the fixing frame 11 are in communication with each other. A fixing block 13 is fixedly connected to the interior of the fixing frame 11 , a turbofan 14 is rotatably mounted on the outer wall of the fixing block 13 , and a first guide rod 15 is fixedly connected to the outer wall of the turbofan 14 .

[0022] One end of the first guide rod 15 is rotatably connected to the mounting frame 12 , which is fixedly connected to the outer wall of the industrial boiler membrane wall body 1 . The outer wall of the first guide rod 15 is fixedly connected to a toggle wheel 16 , and an arc corner 17 is provided at the end of the toggle wheel 16 .

[0023] A first heat exchange tube group 4, a second heat exchange tube group 7 and a third heat exchange tube group 8 are installed inside the membrane wall body 1 of the industrial boiler. The first heat exchange tube group 4, the second heat exchange tube group 7 and the third heat exchange tube group 8 are interconnected.

[0024] One end of the first heat exchange tube group 4 is connected to the steam transfer device 6, and the outer wall of the industrial boiler membrane wall body 1 is fixedly connected to the high-temperature flue gas inlet pipe 3. The interior of the industrial boiler membrane wall body 1 is provided with a combustion chamber 2, and the combustion chamber 2 and the high-temperature flue gas inlet pipe 3 are connected to each other. The other end of the first heat exchange tube group 4 is fixedly connected to the return pipe group 5, and one end of the return pipe group 5 is fixedly connected to the steam transfer device 6.

[0025] In this embodiment, when the boiler heat exchange device is used, when the high-temperature flue gas inlet pipe 3 begins to transport high-temperature exhaust gas into the combustion chamber 2, the exhaust gas enters the combustion chamber 2 and transfers heat to the first heat exchange tube group 4, the second heat exchange tube group 7, and the third heat exchange tube group 8 through heat exchange. Since the first heat exchange tube group 4, the second heat exchange tube group 7, and the third heat exchange tube group 8 are interconnected, the water vapor generated by the high-temperature boiling of the water inside them will enter the steam relay 6 along the pipeline. At this time, the high-temperature and high-pressure steam in the steam relay 6 can be further utilized through the external pipeline. And a part of the high-temperature and high-pressure steam will be transported to the fixed frame 11 through the second delivery pipe 10. After the high-pressure steam enters the fixed frame 11, it then enters the first delivery pipe 9 through the fixed frame 11 and is transported back to the steam transfer device 6. In the process of the steam flowing from the fixed frame 11 into the first delivery pipe 9, the high-pressure steam's high pressure, strength and flow rate will act on the blades of the turbine fan 14, causing the blades to be forced to rotate. Therefore, as the heat exchange proceeds, the turbine fan 14 will always keep rotating, and the rotation of the toggle wheel 16 will cause its outer wall and the arc angle 17 at the end to contact the first ball 19. As the toggle wheel 16 rotates, the resistance force causes the first ball 19 to move together with the second guide rod 18 under force, and the second guide rod 18 moves toward the deep inside of the membrane wall body 1 of the industrial boiler, and during the movement, it moves synchronously with the first fixed plate 20. When the first fixed plate 20 moves, it compresses the first return spring 21 to make it in a taut state, which is convenient for subsequent reset; As the second guide rod 18 moves, the second rolling ball 22 at the other end of the second guide rod 18 will contact the plurality of third rolling balls 33 when moving synchronously. As the second rolling balls 22 and the third rolling balls 33 contact each other, the third rolling balls 33 are forced to slide with the corresponding fourth guide rod 32 toward the through slot 31. During the sliding process, the fourth guide rod 32 moves synchronously with the second fixing plate 35. During the movement of the second fixing plate 35, the third return spring 36 is stretched and tightened to facilitate subsequent reset. At this time, the movement of the fourth guide rod 32 occurs instantaneously and synchronously when the third ball 33 collides with the second ball 22. Therefore, the movement of the fourth guide rod 32 has a certain speed. The fourth guide rod 32 carries the fourth ball 34 at the other end to collide and knock on the outer wall of the second heat exchange tube group 7, and multiple fourth guide rods 32 are evenly arranged on the moving block 28. Therefore, as the second guide rod 18 continues to move, each fourth guide rod 32 will carry the fourth ball 34 to knock on the outer wall of the second heat exchange tube group 7. Since the second heat exchange tube group 7 is interconnected with the third heat exchange tube group 8 and the first heat exchange tube group 4, that is, they are in a connected state, the vibration generated by the knocking will cause impurities in the exhaust gas adhered to the outer walls of the first heat exchange tube group 4, the second heat exchange tube group 7 and the third heat exchange tube group 8 to fall off, thereby reducing the impact of impurity accumulation on the heat exchange efficiency of the heat exchange tube group.

[0026] When the toggle wheel 16 rotates to release the interference with the second guide rod 18 and the first ball 19, the first return spring 21 returns to its original position and rebounds with the first fixing plate 20 and the second guide rod 18. When the second guide rod 18 moves and returns to its original position, it brings the second ball 22 back to its original position and releases the interference with the third ball 33 and the fourth guide rod 32. At this time, the third return spring 36 also returns to its original position and rebounds with the second fixing plate 35 and the fourth guide rod 32 to their original position, making it convenient for the toggle wheel 16 to rotate to a position where it can contact the second guide rod 18 and the first ball 19 again to continue the next round of knocking and vibration to remove impurities.

[0027] Example 2: This example aims to solve the problem of only knocking on a single area of the heat exchange tube group, which cannot cause more uniform vibration to cause the impurities accumulated on the outside of the heat exchange tube group to fall off. This example is an improvement made on the basis of Example 1. For details, please refer to Figure 1 - Figure 9 A second guide rod 18 is slidably connected to the main body 1 of the membrane wall of the industrial boiler, and a first rolling ball 19 is rotatably mounted on one end of the second guide rod 18; The outer wall of the second guide rod 18 is fixedly connected to the first fixing plate 20, and the outer wall of the first fixing plate 20 is fixedly connected to the first return spring 21. The first return spring 21 is sleeved on the second guide rod 18, and the other end of the first return spring 21 is fixedly connected to the outer wall of the membrane wall body 1 of the industrial boiler.

[0028] A second rolling ball 22 is rotatably mounted on the other end of the second guide rod 18 . The outer wall of the second guide rod 18 is provided with a plurality of evenly distributed first inclined surfaces 23 , second inclined surfaces 24 and third inclined surfaces 25 . The first inclined surfaces 23 , second inclined surfaces 24 and third inclined surfaces 25 are arranged in a continuous manner.

[0029] A third guide rod 30 is fixedly connected to the outer wall of the moving block 28 .

[0030] Both ends of the moving block 28 are fixedly connected with a convex head 29, and the convex head 29 is set as a block with an arc shape; Two limiting blocks 26 for cooperating with the protrusion 29 to limit the moving block 28 are fixedly connected to the inner wall of the membrane wall body 1 of the industrial boiler.

[0031] A first delivery pipe 9 is fixedly connected to the outer wall of the fixed frame 11 . The first delivery pipe 9 and the fixed frame 11 are communicated with each other. One end of the first delivery pipe 9 is communicated with the input end of the steam transfer device 6 .

[0032] In this embodiment, in order to solve the above problem, during the continuous rotation of the toggle wheel 16, when the toggle wheel 16 contacts the first rolling ball 19 and the second guide rod 18, when the second guide rod 18 is prompted to move, before the second guide rod 18 and the second rolling ball 22 have not yet contacted the fourth guide rod 32 and the third rolling ball 33, the second rolling ball 22 will first contact the third guide rod 30 on the outer wall of the moving block 28, and contact the outer wall of the third guide rod 30 with a cylindrical shape, so that the third guide rod 30 brings the moving block 28 under downward force, and since the third guide rod 30 is fixed at a position slightly to the right of the center of the moving block 28, when it is subjected to downward force, it will bring the right side of the moving block 28 under downward force. At this time, the right side of the moving block 28 will be forced downward to compress the second return spring 27 on the right side, so that the moving block 28 is in a tilted state at this time, and as the second guide rod 18 moves As the movement continues, the second guide rod 18 will come into conflict with the third rolling ball 33 and the fourth guide rod 32 in the inclined state, causing the inclined third rolling ball 33 and the fourth guide rod 32 to strike the outer wall of the second heat exchange tube group 7 at a position different from that in the first embodiment. Subsequently, as the second guide rod 18 continues to move, the third guide rod 30 will slide along the outer wall of the second guide rod 18 onto the third inclined surface 25. At this time, due to the inclination angle of the third inclined surface 25, the second guide rod 18 is gradually relieved of the force. At this time, the second return spring 27 returns and the moving block 28 rebounds and returns to its original position. Subsequently, when the third guide rod 30 continues to slide from the surface of the third inclined surface 25 to the surface of the second inclined surface 24, the fourth guide rod 32 and the third rolling ball 33 in the horizontal state are conflicted and moved to strike the horizontal position of the second heat exchange tube group 7, which is consistent with the knocking position in the first embodiment. When the second guide rod 18 slides along the surface of the second inclined surface 24 to the surface of the third inclined surface 25, the inclined angle of the third inclined surface 25 prompts the second guide rod 18 to return to the inclined state with the moving block 28. At this time, the fourth guide rod 32 and the third rolling ball 33 are in the inclined state and move under force to knock on the surface of the second heat exchange tube group 7. In this way, different knocking positions can be continuously changed during the operation of the device to achieve a more uniform knocking effect on the heat exchange tube group.

[0033] The flow tube group is designed as a "micro-S" shape and is arranged in the membrane wall. Depending on the size of the boiler load, three to four groups of tubes can be arranged. The flue gas flows from bottom to top, and the flue gas temperature is also higher at the bottom. The flue gas in the flue gas turning area at the bottom of the combustion chamber horizontally flushes the convection tube, the middle straight tube is a pure longitudinal flushing area, and the outlet area is a transverse flushing area, which completes the combined transverse and longitudinal flushing very well. Although the convection tube is arranged longitudinally, it has the effect of mixed transverse and longitudinal flushing.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchange device for an industrial boiler, comprising an industrial boiler membrane wall body (1), characterized in that: The inner wall of the membrane wall body (1) of the industrial boiler is fixedly connected to a plurality of second return springs (27), one end of the second return spring (27) is fixedly connected to a moving block (28), the outer wall of the moving block (28) is provided with a plurality of evenly distributed through grooves (31), the inner wall of the through groove (31) is slidably connected to a fourth guide rod (32), the two ends of the fourth guide rod (32) are rotatably mounted with a third rolling ball (33) and a fourth rolling ball (34), the outer wall of the fourth guide rod (32) is fixedly connected to a second fixing plate (35), one end of the second fixing plate (35) is fixedly connected to a third return spring (36), the third return spring (36) is sleeved on the fourth guide rod (32), and the other end of the third return spring (36) is fixedly connected to the outer wall of the moving block (28).

2. The heat exchange device for an industrial boiler according to claim 1, characterized in that: A steam transfer device (6) is fixedly mounted on the outer wall of the membrane wall body (1) of the industrial boiler; an output end of the steam transfer device (6) is fixedly connected to a second delivery pipe (10); one end of the second delivery pipe (10) is fixedly connected to a fixing frame (11); the second delivery pipe (10) and the fixing frame (11) are in communication with each other; A fixing block (13) is fixedly connected to the interior of the fixing frame (11), a turbine fan (14) is rotatably mounted on the outer wall of the fixing block (13), and a first guide rod (15) is fixedly connected to the outer wall of the turbine fan (14).

3. The heat exchange device for an industrial boiler according to claim 2, characterized in that: One end of the first guide rod (15) is rotatably connected to a mounting frame (12), and the mounting frame (12) is fixedly connected to the outer wall of the membrane wall body (1) of the industrial boiler. The outer wall of the first guide rod (15) is fixedly connected to a toggle wheel (16), and the end of the toggle wheel (16) is provided with an arc angle (17).

4. The heat exchange device for an industrial boiler according to claim 3, characterized in that: A second guide rod (18) is slidably connected to the membrane wall body (1) of the industrial boiler, and a first rolling ball (19) is rotatably mounted on one end of the second guide rod (18); The outer wall of the second guide rod (18) is fixedly connected to a first fixing plate (20), and the outer wall of the first fixing plate (20) is fixedly connected to a first return spring (21). The first return spring (21) is sleeved on the second guide rod (18), and the other end of the first return spring (21) is fixedly connected to the outer wall of the membrane wall body (1) of the industrial boiler.

5. The heat exchange device for an industrial boiler according to claim 4, characterized in that: A second rolling ball (22) is rotatably mounted on the other end of the second guide rod (18). The outer wall of the second guide rod (18) is provided with a plurality of evenly distributed first inclined surfaces (23), second inclined surfaces (24) and third inclined surfaces (25). The first inclined surfaces (23), second inclined surfaces (24) and third inclined surfaces (25) are arranged in a continuous manner.

6. The heat exchange device for an industrial boiler according to claim 5, characterized in that: A third guide rod (30) is fixedly connected to the outer wall of the moving block (28).

7. The heat exchange device for an industrial boiler according to claim 6, characterized in that: Both ends of the moving block (28) are fixedly connected with convex heads (29), and the convex heads (29) are configured as blocks with an arc shape; Two limiting blocks (26) are fixedly connected to the inner wall of the industrial boiler membrane wall body (1) and are used to cooperate with the protrusion (29) to limit the moving block (28).

8. The heat exchange device for an industrial boiler according to claim 7, characterized in that: A first delivery pipe (9) is fixedly connected to the outer wall of the fixed frame (11), the first delivery pipe (9) and the fixed frame (11) are in communication with each other, and one end of the first delivery pipe (9) is in communication with the input end of the steam transfer device (6).

9. The heat exchange device for an industrial boiler according to claim 8, characterized in that: A first heat exchange tube group (4), a second heat exchange tube group (7) and a third heat exchange tube group (8) are installed inside the membrane wall body (1) of the industrial boiler, and the first heat exchange tube group (4), the second heat exchange tube group (7) and the third heat exchange tube group (8) are interconnected.

10. The heat exchange device for an industrial boiler according to claim 9, characterized in that: One end of the first heat exchange tube group (4) is connected to the steam transfer device (6); the outer wall of the industrial boiler membrane wall body (1) is fixedly connected to a high-temperature flue gas inlet pipe (3); a combustion chamber (2) is provided inside the industrial boiler membrane wall body (1); the combustion chamber (2) and the high-temperature flue gas inlet pipe (3) are connected to each other; the other end of the first heat exchange tube group (4) is fixedly connected to a return tube group (5); and one end of the return tube group (5) is fixedly connected to the steam transfer device (6).

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