Novel steam generator with tube bundle sliding structure

Abstract

The invention belongs to the technical field of steam generators, and discloses a novel steam generator with a tube bundle sliding structure, which comprises a shell, a mounting end cover is fixedly arranged at the end part of the shell, a distribution assembly is fixedly arranged on the front surface of the mounting end cover, and a heat exchange tube bundle is arranged in the shell. The outer surface of the heat exchange tube bundle is movably sleeved with a sliding assembly. Through cooperation of the distribution assembly and the fixing assembly, the heat exchange tube bundle arranged in the shell and the mounting end cover are extruded and fixed, and the pushing assembly is matched under fixation to control transverse movement of the sliding assembly, so that the sliding assembly movably connected to the outer side of the heat exchange tube bundle in a sleeving mode transversely moves; and the supporting position of the heat exchange tube bundle is continuously changed under the reciprocating motion, and when the heat exchange tube bundle expands with heat and contracts with cold, the internal stress of the heat exchange tube bundle can be reduced through sliding of the sliding assemblies, friction among all the assemblies is reduced, and therefore the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of steam generators, and in particular relates to a steam generator with a novel tube bundle sliding structure. Background Art

[0002] A steam generator is a device that uses high-temperature logistics in industrial production processes as a heat source to generate steam. It mainly consists of a shell and a tube bundle located inside the shell. The tube bundle consists of a tube sheet, heat exchange tubes and a tube bundle support plate.

[0003] In the prior art, since the steam generator has only one tube sheet, the tube bundle is similar to a cantilever beam with one end fixed on the tube sheet. In order to prevent the tube bundle from being suspended in the air for a long time and causing the tube bundle to bend due to its own gravity, it is necessary to set a plurality of tube bundle support plates in the tube bundle, and fix the heat exchange tube bundle on the tube bundle support plate to support the tube bundle. However, this will not only bring inconvenience to the installation and maintenance of the equipment, but also the thermal expansion and contraction of the tube bundle during the operation of the equipment will generate greater stress between the tube bundle and the tube bundle support plate, and between the tube bundle support plate and the shell. Long-term operation will damage the tube bundle and reduce the service life of the equipment. Summary of the invention

[0004] The object of the present invention is to provide a steam generator with a novel tube bundle sliding structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steam generator with a novel tube bundle sliding structure, comprising a shell, a mounting end cover is fixedly provided at the end of the shell, a distribution assembly is fixedly provided on the front of the mounting end cover, a heat exchange tube bundle is arranged inside the shell, a sliding assembly is movably sleeved on the outer surface of the heat exchange tube bundle, a pushing assembly is fixedly provided at the bottom of the inner cavity of the shell, the pushing assembly controls the lateral movement of the sliding assembly, a clamping assembly is provided inside the sliding assembly, a fixing assembly is provided inside the distribution assembly, a liquid inlet pipe is provided at the right end of the shell, a steam outlet pipe is provided at the top of the shell, and a sealing ring is fixedly sleeved on the outer side surface of the shell.

[0006] Preferably, the sliding assembly includes an intermediate support plate, an outer support plate, an intermediate frame, a connecting block, a sleeve hole and a reserved groove, the intermediate support plate and the outer support plate are both movably sleeved on the outer side of the heat exchange tube bundle, the sleeve hole is opened on the intermediate support plate and the outer support plate, the inner surface of the sleeve hole is sleeved with the heat exchange tube bundle, the intermediate frame is fixed to the bottom of the intermediate support plate and the outer support plate, and the connecting block is fixed to the bottom of the intermediate frame.

[0007] Preferably, the front side of the mounting end cover is movably sleeved with the heat exchange tube bundle, the front side of the mounting end cover is sleeved with bolts, and the mounting end cover is fixed to the end of the shell by bolts.

[0008] Preferably, the distribution assembly includes a distribution frame, an intermediate block, a pipe-side inlet, a pipe-side outlet, a push-in plug and a connecting cavity. The distribution frame is fixed to the front side of the mounting end cover, the intermediate block is fixed to the middle part of the distribution frame, the pipe-side inlet and the pipe-side outlet are respectively located at the upper and lower parts of the distribution frame, the connecting cavity is opened inside the intermediate block, and a push-in plug is provided on the front side of the distribution frame, and the push-in plug is threadedly sleeved on the end part of the connecting cavity.

[0009] Preferably, the fixing assembly includes a splint, a push rod and a spring, one end of the push rod is fixedly connected to the splint, and the other end is movably sleeved in the middle block, the spring is fixed between the two groups of push rods, the splints are symmetrically distributed on both sides of the middle block, and the connecting cavity is connected to the sleeve hole of the push rod.

[0010] Preferably, the pushing assembly includes a sliding frame and a No. 1 electric push rod, the sliding frame is fixed to the bottom of the inner cavity of the shell, the No. 1 electric push rod is fixed in the sliding frame, and the movable end is fixedly connected to the connecting block.

[0011] Preferably, the reserved groove is provided on the front side of the middle support plate, and the clamping assembly is sleeved in the reserved groove.

[0012] Preferably, the clamping assembly includes a transverse plate, a fitting groove, an intermediate rod and a No. 2 electric push rod, the transverse plate is located on the lower side of the outer surface of the heat exchange tube bundle, the fitting groove is opened on the top of the transverse plate, the number of the transverse plates is two and they are symmetrically distributed on both sides of the intermediate rod, the No. 2 electric push rod is fixedly installed in the reserved groove, and the movable end of the No. 2 electric push rod is fixedly connected to the intermediate rod.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention utilizes the cooperation of the distribution component and the fixing component to squeeze and fix the heat exchange tube bundle arranged in the shell with the mounting end cover, and cooperates with the pushing component to control the lateral movement of the sliding component under the fixation, so that the sliding component movably sleeved on the outside of the heat exchange tube bundle moves laterally and continuously changes the supporting position of the heat exchange tube bundle during the reciprocating movement. When the heat exchange tube bundle expands and contracts due to heat, the internal stress of the heat exchange tube bundle can be reduced through the sliding of the sliding component, and the friction between the various components can be reduced, thereby increasing the service life of the equipment.

[0014] 2. The present invention utilizes the cooperation between the distribution component and the fixing component to squeeze and fix the heat exchange tube bundle arranged in the shell and the mounting end cover, and cooperates with the pushing component to control the lateral movement of the sliding component under the fixation. During the actual sliding process, the outer surface of the heat exchange tube bundle is continuously rubbed, and the scale on the outside is cleaned after friction and squeezing, which effectively ensures the cleanliness of the surface of the heat exchange tube bundle, ensures the stability of the thickness, avoids the influence of accumulated dirt on the heat exchange efficiency, and ensures the long-term heat exchange effect.

[0015] 3. The present invention again utilizes the cooperation between the distribution component and the fixing component to achieve the reset of the fixing component when the end cover is disassembled and installed, release the clamping and fixing of the heat exchange tube bundle, and utilizes the clamping action of the clamping component. After the heat exchange tube bundle is clamped, the movement of the sliding component is utilized to drive the clamped and fixed heat exchange tube bundle to move synchronously, thereby achieving the complete removal of the heat exchange tube bundle from the opened shell port, and achieving convenient maintenance after removal, which is simple to operate and has good use effect. Among them, the sliding component includes an intermediate support plate, an outer support plate, an intermediate frame, a connecting block, a sleeve hole and a reserved groove. The intermediate support plate and the outer support plate are both movably sleeved on the outer side of the heat exchange tube bundle. The sleeve holes are opened on the intermediate support plate and the outer support plate. The inner surface of the sleeve hole is sleeved with the heat exchange tube bundle. The intermediate frame is fixed to the bottom of the intermediate support plate and the outer support plate, and the connecting block is fixed to the bottom of the intermediate frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a cross-sectional schematic diagram of the present invention; Figure 3 A schematic diagram of the sleeve connection of the end cover and the heat exchange tube bundle installed in the present invention; Figure 4 is a cross-sectional schematic diagram of the sliding assembly of the present invention; Figure 5 is a schematic diagram of a clamping assembly of the present invention; Figure 6 is a schematic diagram of the middle support plate of the present invention; Figure 7 A cross-sectional schematic diagram of a distribution assembly of the present invention; Figure 8 is a schematic diagram of a fixing assembly of the present invention; Fig. 9 A schematic diagram of a driving assembly of the present invention; In the figure: 1. Shell; 2. Install end cover; 3. Distribution assembly; 31. Distribution frame; 32. Middle block; 33. Tube inlet; 34. Tube outlet; 35. Push plug; 36. Connecting cavity; 4. Sealing ring; 5. Heat exchange tube bundle; 6. Sliding assembly; 61. Middle support plate; 62. Outer support plate; 63. Middle frame; 64. Connecting block; 65. Hole; 66. Reserved groove; 7. Push assembly; 71. Sliding frame; 72. No. 1 electric push rod; 8. Clamping assembly; 81. Cross plate; 82. Fitting groove; 83. Middle rod; 84. No. 2 electric push rod; 9. Liquid inlet pipe; 10. Steam outlet pipe; 11. Fixing assembly; 111. Clamping plate; 112. Push rod; 113. Spring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0018] like Figures 1 to 9 As shown, an embodiment of the present invention provides a steam generator with a novel tube bundle sliding structure, comprising a shell 1, a mounting end cover 2 is fixedly provided at the end of the shell 1, a distribution component 3 is fixedly provided on the front of the mounting end cover 2, a heat exchange tube bundle 5 is provided inside the shell 1, a sliding component 6 is movably sleeved on the outer surface of the heat exchange tube bundle 5, a pushing component 7 is fixedly provided at the bottom of the inner cavity of the shell 1, the pushing component 7 controls the lateral movement of the sliding component 6, a clamping component 8 is provided inside the sliding component 6, a fixing component 11 is provided inside the distribution component 3, a liquid inlet pipe 9 is provided at the right end of the shell 1, a steam outlet pipe 10 is provided at the top of the shell 1, and a sealing ring 4 is fixedly sleeved on the outer side surface of the shell 1.

[0019] Embodiment 1: When in use, the hot fluid is input into the distribution frame 31 through the tube inlet 33 in the distribution assembly 3, and is input into one end of the heat exchange tube bundle 5 under the blocking of the middle block 32. The hot fluid enters the heat exchange tube bundle 5, and at the same time, the water flow is input into the shell 1 through the liquid inlet pipe 9. After heat exchange and evaporation with the heat exchange tube bundle 5, the generated steam flows upward through the steam outlet pipe 10. In the process of use, the push-in plug 35 in the rotating distribution assembly 3 is rotated so that the push-in plug 35 squeezes the storage liquid in the connecting chamber 36, and the hydraulic pressure in the connecting chamber 36 is increased, and the hydraulic pressure The force acts on the fixing assembly 11, pushing the push rods 112 on both sides to move, stretching the spring 113, and moving the clamping plates 111 on both sides to clamp and fix the heat exchange tube bundle 5 sleeved in the mounting end cover 2. When auxiliary treatment of the heat exchange tube bundle is required, the No. 1 electric push rod 72 in the pushing assembly 7 is started to push the connecting block 64 to move horizontally, and the middle frame 63 drives the middle support plate 61 and the outer support plate 62 to move horizontally along the heat exchange tube bundle 5, so as to support the heat exchange tube bundle 5 while removing the surface dirt, and the surface stress of the heat exchange tube bundle 5 is evenly distributed.

[0020] First, by utilizing the cooperation between the distribution component 3 and the fixing component 11, the heat exchange tube bundle arranged in the shell 1 is squeezed and fixed with the mounting end cover 2, and the pushing component 7 is cooperated under the fixation to control the lateral movement of the sliding component 6, so that the sliding component 6 movably sleeved on the outside of the heat exchange tube bundle 5 moves laterally and continuously changes the supporting position of the heat exchange tube bundle during the reciprocating movement. When the heat exchange tube bundle 5 expands and contracts due to heat, the internal stress of the heat exchange tube bundle 5 can be reduced through the sliding of the sliding component 6, and the friction between the components can be reduced, thereby increasing the service life of the equipment.

[0021] In addition, by utilizing the cooperation between the distribution component 3 and the fixing component 11, the heat exchange tube bundle arranged in the shell 1 is squeezed and fixed with the mounting end cover 2, and the pushing component 7 is cooperated under the fixation to control the lateral movement of the sliding component 6. During the actual sliding process, the outer surface of the heat exchange tube bundle 5 is continuously rubbed, and the scale on the outside is cleaned after friction and squeezing, which effectively ensures the cleanliness of the surface of the heat exchange tube bundle 5, ensures the stability of the thickness, avoids the accumulated dirt from affecting the heat exchange efficiency, and ensures the long-term heat exchange effect.

[0022] Embodiment 2: When the heat exchange tube bundle 5 needs to be repaired, the bolts on the mounting end cover 2 are loosened, and the push plug 35 is screwed outward, so that the spring 113 in the fixing assembly 11 is elastically reset, and the clamping plate 111 is driven to move and reset, and then the mounting end cover 2 is opened, and the No. 2 electric push rod 84 in the clamping assembly 8 is started to drive the middle rod 83 to move upward, and the cross plates 81 on both sides are moved upward, so that the fitting groove 82 is upwardly contacted with the surface of the heat exchange tube bundle to complete the extrusion fixation, and the No. 1 electric push rod 72 in the pushing assembly 7 is started to drive the sliding assembly 6 to move horizontally along the sliding frame 71, and drive the clamped and fixed heat exchange tube bundle 5 to move, remove it from the shell 1, and carry out the repair process.

[0023] First, by utilizing the cooperation between the distribution component 3 and the fixing component 11 again, the fixing component 11 is reset when the end cover is disassembled and installed, and the clamping fixation of the heat exchange tube bundle 5 is released. By utilizing the clamping action of the clamping component 8, after the heat exchange tube bundle 5 is clamped, the movement of the sliding component 6 is utilized to drive the clamped and fixed heat exchange tube bundle 5 to move synchronously, thereby achieving complete removal of the heat exchange tube bundle 5 from the opened port of the shell 1, and realizing convenient maintenance after removal, which is simple to operate and has a good use effect. Among them, the sliding assembly 6 includes an intermediate support plate 61, an outer support plate 62, an intermediate frame 63, a connecting block 64, a sleeve hole 65 and a reserved groove 66. The intermediate support plate 61 and the outer support plate 62 are both movably sleeved on the outer side of the heat exchange tube bundle 5. The sleeve hole 65 is opened on the intermediate support plate 61 and the outer support plate 62. The inner surface of the sleeve hole 65 is sleeved with the heat exchange tube bundle 5. The intermediate frame 63 is fixed to the bottom of the intermediate support plate 61 and the outer support plate 62, and the connecting block 64 is fixed to the bottom of the intermediate frame 63.

[0024] The front side of the mounting end cover 2 is movably sleeved with the heat exchange tube bundle 5 , the front side of the mounting end cover 2 is sleeved with bolts, and the mounting end cover 2 is fixed to the end of the shell 1 by bolts.

[0025] The mounting end cover 2 is fixed by bolts and the sealing ring 4 is used to seal the mounting end surface.

[0026] Among them, the distribution component 3 includes a distribution frame 31, an intermediate block 32, a pipe side inlet 33, a pipe side outlet 34, a push-in plug 35 and a connecting cavity 36. The distribution frame 31 is fixed on the front of the installation end cover 2, the intermediate block 32 is fixed in the middle of the distribution frame 31, the pipe side inlet 33 and the pipe side outlet 34 are respectively located at the upper and lower positions of the distribution frame 31, and the connecting cavity 36 is opened inside the intermediate block 32. A push-in plug 35 is provided on the front of the distribution frame 31, and the push-in plug 35 is threadedly sleeved on the end of the connecting cavity 36. The fixing component 11 includes a splint 111, a push rod 112 and a spring 113. One end of the push rod 112 is fixedly connected to the splint 111, and the other end is movably sleeved in the intermediate block 32. The spring 113 is fixed between the two groups of push rods 112. The splints 111 are symmetrically distributed on both sides of the intermediate block 32, and the connecting cavity 36 is connected to the sleeve hole of the push rod 112.

[0027] By utilizing the cooperation between the distribution component 3 and the fixing component 11, on the one hand, the introduction and extraction of the hot fluid is realized, and on the other hand, under the action of the internal pressure of the connecting cavity 36, the action of the fixing component 11 is realized, and the heat exchange tube bundle 5 sleeved on the mounting end cover 2 is auxiliary clamped and fixed, ensuring that the fixed heat exchange tube bundle 5 maintains stability when the sliding component slides, thereby realizing stress adjustment and external cleaning.

[0028] The pushing assembly 7 includes a sliding frame 71 and a No. 1 electric push rod 72 . The sliding frame 71 is fixed at the bottom of the inner cavity of the shell 1 . The No. 1 electric push rod 72 is fixed in the sliding frame 71 , and the movable end is fixedly connected to the connecting block 64 .

[0029] The lateral movement control of the sliding assembly 6 is achieved by providing a driving force through the driving assembly 7 .

[0030] The reserved groove 66 is provided on the front side of the middle support plate 61 , and the clamping assembly 8 is sleeved in the reserved groove 66 .

[0031] The reserved groove 66 is used to reserve space for the installation and ascending movement of the false clamping assembly 8, thereby completing the clamping and fixing operation.

[0032] Among them, the clamping assembly 8 includes a transverse plate 81, a fitting groove 82, an intermediate rod 83 and a No. 2 electric push rod 84. The transverse plate 81 is located on the lower side of the outer surface of the heat exchange tube bundle 5. The fitting groove 82 is opened at the top of the transverse plate 81. There are two transverse plates 81 and they are symmetrically distributed on both sides of the intermediate rod 83. The No. 2 electric push rod 84 is fixedly installed in the reserved groove 66, and the movable end of the No. 2 electric push rod 84 is fixedly connected to the intermediate rod 83.

[0033] The clamping assembly 8 is used to clamp and fix the heat exchange tube bundle 5 upward, and the heat exchange tube bundle 5 is kept fixed in the sliding assembly 6. After the fixing assembly 11 is released, the sliding assembly 6 directly drives the movement of the heat exchange tube bundle 5, and the active removal is achieved, which is convenient for maintenance.

[0034] The working principle and use process of the present invention are as follows: when in use, the hot fluid is input into the distribution frame 31 through the tube side inlet 33 in the distribution component 3, and is input into one end of the heat exchange tube bundle 5 under the obstruction of the middle block 32, the hot fluid enters the heat exchange tube bundle 5, and at the same time, the water flow is input into the shell 1 through the liquid inlet pipe 9, and after heat exchange and evaporation with the heat exchange tube bundle 5, the generated steam flows out upward through the steam outlet pipe 10, and during use, the push plug 35 in the rotating distribution component 3 is rotated so that the push plug 35 squeezes the storage liquid in the connecting cavity 36, and the hydraulic pressure in the connecting cavity 36 is increased, and the hydraulic pressure acts on the fixing component 11, pushing the push rods 112 on both sides to move, and while stretching the spring 113, the clamps 111 on both sides are moved, and the heat exchange tube bundle 5 sleeved in the mounting end cover 2 is clamped and fixed, and when auxiliary treatment of the heat exchange tube bundle is required, the No. 1 electric push rod 72 in the pushing component 7 is started. , push the connecting block 64 to move horizontally, and make the middle frame 63 drive the middle support plate 61 and the outer support plate 62 to move horizontally along the heat exchange tube bundle 5, so as to support the heat exchange tube bundle 5 while removing the surface dirt, and the surface stress distribution of the heat exchange tube bundle 5 is uniform; when the heat exchange tube bundle 5 needs to be repaired, loosen the bolts on the mounting end cover 2, and screw out the push plug 35 outward, so that the spring 113 in the fixing component 11 is elastically reset, and the clamping plate 111 is driven to move and reset, then the mounting end cover 2 is opened, and the No. 2 electric push rod 84 in the clamping component 8 is started to drive the middle rod 83 to move upward, and the horizontal plates 81 on both sides are moved upward, so that the fitting groove 82 contacts the surface of the heat exchange tube bundle upward, and the extrusion fixation is completed, and the No. 1 electric push rod 72 in the pushing component 7 is started to drive the sliding component 6 to move horizontally along the sliding frame 71, and drive the clamped and fixed heat exchange tube bundle 5 to move, remove it from the shell 1, and carry out the repair process.

[0035] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam generator with a novel tube bundle sliding structure, comprising a shell (1), characterized in that: An installation end cover (2) is fixedly provided at the end of the shell (1), a distribution assembly (3) is fixedly provided on the front of the installation end cover (2), a heat exchange tube bundle (5) is provided inside the shell (1), a sliding assembly (6) is movably sleeved on the outer surface of the heat exchange tube bundle (5), a pushing assembly (7) is fixedly provided at the bottom of the inner cavity of the shell (1), the pushing assembly (7) controls the lateral movement of the sliding assembly (6), a clamping assembly (8) is provided inside the sliding assembly (6), a fixing assembly (11) is provided inside the distribution assembly (3), a liquid inlet pipe (9) is provided at the right end of the shell (1), a steam outlet pipe (10) is provided at the top of the shell (1), and a sealing ring (4) is fixedly sleeved on the outer side surface of the shell (1).

2. The steam generator with a novel tube bundle sliding structure according to claim 1 is characterized in that: The sliding assembly (6) comprises an intermediate support plate (61), an outer support plate (62), an intermediate frame (63), a connecting block (64), a sleeve hole (65) and a reserved groove (66); the intermediate support plate (61) and the outer support plate (62) are both movably sleeved on the outer side of the heat exchange tube bundle (5); the sleeve hole (65) is provided on the intermediate support plate (61) and the outer support plate (62); the inner surface of the sleeve hole (65) is sleeved on the heat exchange tube bundle (5); the intermediate frame (63) is fixed to the bottom of the intermediate support plate (61) and the outer support plate (62); and the connecting block (64) is fixed to the bottom of the intermediate frame (63).

3. The steam generator with a novel tube bundle sliding structure according to claim 2 is characterized in that: The front face of the mounting end cover (2) is movably sleeved with the heat exchange tube bundle (5), the front face of the mounting end cover (2) is sleeved with bolts, and the mounting end cover (2) is fixed to the end of the shell (1) by means of the bolts.

4. The steam generator with a novel tube bundle sliding structure according to claim 3 is characterized in that: The distribution assembly (3) comprises a distribution frame (31), an intermediate block (32), a pipe-side inlet (33), a pipe-side outlet (34), a push-in plug (35) and a connecting cavity (36); the distribution frame (31) is fixed to the front of the mounting end cover (2); the intermediate block (32) is fixed to the middle of the distribution frame (31); the pipe-side inlet (33) and the pipe-side outlet (34) are respectively located at the upper and lower positions of the distribution frame (31); the connecting cavity (36) is opened inside the intermediate block (32); a push-in plug (35) is provided on the front of the distribution frame (31); and the push-in plug (35) is threadedly sleeved on the end of the connecting cavity (36).

5. The steam generator with a novel tube bundle sliding structure according to claim 4 is characterized in that: The fixing assembly (11) comprises a clamping plate (111), a push rod (112) and a spring (113); one end of the push rod (112) is fixedly connected to the clamping plate (111), and the other end is movably sleeved in the middle block (32); the spring (113) is fixed between two groups of push rods (112); the clamping plates (111) are symmetrically distributed on both sides of the middle block (32); and the connecting cavity (36) is connected to the sleeve hole of the push rod (112).

6. The steam generator with a novel tube bundle sliding structure according to claim 5 is characterized in that: The pushing assembly (7) comprises a sliding frame (71) and a first electric push rod (72); the sliding frame (71) is fixed to the bottom of the inner cavity of the housing (1); the first electric push rod (72) is fixed in the sliding frame (71), and the movable end is fixedly connected to the connecting block (64).

7. The steam generator with a novel tube bundle sliding structure according to claim 6 is characterized in that: The reserved groove (66) is formed on the front surface of the middle support plate (61), and the clamping assembly (8) is sleeved in the reserved groove (66).

8. The steam generator with a novel tube bundle sliding structure according to claim 7 is characterized in that: The clamping assembly (8) comprises a transverse plate (81), a fitting groove (82), an intermediate rod (83) and a second electric push rod (84); the transverse plate (81) is located on the lower side of the outer surface of the heat exchange tube bundle (5); the fitting groove (82) is provided on the top of the transverse plate (81); there are two transverse plates (81) and they are symmetrically distributed on both sides of the intermediate rod (83); the second electric push rod (84) is fixedly installed in the reserved groove (66); and the movable end of the second electric push rod (84) is fixedly connected to the intermediate rod (83).

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