Fuel oil efficient heat exchange steam generation cabinet

Abstract

The utility model discloses a fuel oil efficient heat exchange steam generation cabinet which comprises a cabinet body, a position installation mechanism, an installation clamping mechanism and a clamping auxiliary mechanism, and the position installation mechanism comprises a generator body, an inner transverse plate, an adjusting hole, a lateral frame, a clamping pipe and a clamping rod. The mounting and clamping mechanism comprises an extending frame, a guide block, a moving block, a guide groove, a clamping groove, a toothed plate and a worm, the position mounting mechanism is matched with a clamping rod by forming a plurality of sets of adjusting holes, the mounting position of the generator body can be flexibly adjusted, and different working requirements are met; the position of the generator body can be rapidly adjusted within a certain range through the design of the adjusting hole, the clamping rod and the clamping pipe can be rapidly matched and clamped through the design of the installation clamping mechanism, the installation and disassembly process becomes simpler, more convenient and faster, and the maintenance and adjustment time and cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of steam generator technology, and more specifically, to a fuel-fired high-efficiency heat exchange steam generator cabinet. Background Technology

[0002] In existing technologies, common high-efficiency fuel-fired heat exchange steam generators typically have some design limitations, especially in terms of generator installation and disassembly. These devices usually fix the generator's installation location in a specific position. Once the generator's position is fixed, the installation, maintenance, and commissioning of the entire device are greatly restricted. Especially when maintenance, cleaning, or troubleshooting is required, the fixed installation location leads to an inconvenient operating environment and makes it impossible to flexibly adjust the generator's position to adapt to different working needs or equipment configuration requirements.

[0003] In addition, the generator body in the existing technology is often designed as an integrated structure, which makes the installation and disassembly process complicated. It requires the disassembly of multiple accessories or connectors, and may even require special tools and professional personnel to operate. This not only increases the time and cost of maintenance work, but may also affect the normal operation of the equipment, prolong downtime, and reduce production efficiency.

[0004] In some complex or harsh environmental conditions, the disassembly and installation of the generator may be more difficult, especially in situations where space is limited or equipment is compact. Operators may find it difficult to operate smoothly, which further increases the difficulty of maintenance and repair, and consequently affects the service life and operational stability of the equipment. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a fuel-fired high-efficiency heat exchange steam generator cabinet to solve the technical problems mentioned in the background art, such as the inconvenience of adjusting the installation position of the generator and the inconvenience of installing and disassembling the generator body.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fuel-fired high-efficiency heat exchange steam generator cabinet, comprising a cabinet body, a position mounting mechanism, a mounting and snapping mechanism, and a snapping auxiliary mechanism. The position mounting mechanism includes a generator body, an inner horizontal plate, adjustment holes, a side frame, a snapping tube, and a snapping rod. The inner horizontal plate is symmetrically fixedly installed on the inner wall of the cabinet body. The side frame is installed on both sides of the generator body. Multiple sets of adjustment holes are provided on the inner horizontal plate. The snapping tube is fixedly installed on the side frame. The snapping rod can pass through different adjustment holes and the side frame, and quickly snaps into place with the snapping tube. The mounting and snapping mechanism includes an insertion frame, a guide block, a moving block, a guide groove, a snapping groove, a toothed plate, and a worm gear. The insertion frame is laterally slidably installed on the side wall of the snapping tube. The moving block is longitudinally slidably installed on the outer wall of the snapping tube. The guide groove is provided on the inner wall of the moving block. One end of the insertion frame is slidably connected to the guide groove, allowing the insertion frame to extend into or away from the snapping groove on the side wall of the snapping rod. The toothed plate is installed on the side of the moving block, and the worm gear meshes with the toothed plate.

[0009] The present invention is further configured such that the locking auxiliary mechanism includes a top fixing ring, a shrinking block, a tightening spring, an outer rotating ring, and a rotating support block. The top fixing ring is fixedly installed on the outer wall of the locking tube. Multiple sets of shrinking blocks are slidably installed at the bottom end of the top fixing ring. The tightening spring is installed between adjacent shrinking blocks. The outer rotating ring is rotatably limited and installed on the outer wall of the locking tube. The rotating support block is installed at the top end of the outer rotating ring. Multiple sets of rotating support blocks are provided. The rotating support blocks pass through the adjacent shrinking blocks in sequence, so that the outer rotating ring rotates stably.

[0010] The present invention is further configured such that a cabinet door is installed at the front opening of the cabinet body, and a smoke exhaust pipe is installed and connected to the top end of the generator body. The smoke exhaust pipe runs through the top end of the cabinet body, guiding the combustion exhaust gas to be safely discharged, reducing the accumulation of harmful gases in the cabinet, and improving safety.

[0011] The present invention is further configured such that an exhaust pipe is installed on the side of the generator body, and the exhaust pipe is installed through the side end of the cabinet. The exhaust pipe passes through the side of the cabinet and outputs the generated steam to the equipment in use, thereby realizing the efficient utilization of steam.

[0012] The present invention is further configured such that a fuel component is installed at the bottom of the cabinet, and the bottom of the fuel component is set at the bottom of the generator body. The fuel component provides a stable heat source and ensures heat exchange efficiency. Its position design optimizes the heat energy rising path.

[0013] The present invention is further configured such that an external toothed ring is installed at the bottom end of the outer rotating ring, and a support plate is fixedly installed on the outer wall of the clamping tube. The external toothed ring meshes with the rotating teeth to transmit the manual rotation force to the transmission system, thereby playing a role in torque conversion.

[0014] The present invention is further configured such that the upper limit rotatable axle of the support plate is provided with a rotating tooth, the outer toothed ring is meshed with the rotating tooth, and one end of the worm is meshed with the rotating tooth. The rotating tooth meshes with the outer toothed ring and the worm, serving as an intermediate link in the transmission system to realize torque transmission.

[0015] The present invention is further configured such that a centripetal rail is installed at the bottom end of the top fixing ring, and the shrinking block is configured to slide centripetally with the centripetal rail. The centripetal rail guides the shrinking block to slide radially, ensuring motion accuracy and stability, and reducing jamming.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a fuel-fired high-efficiency heat exchange steam generator, which has the following beneficial effects:

[0018] This utility model is equipped with a position installation mechanism. By setting multiple sets of adjustment holes and locking rods, the installation position of the generator body can be flexibly adjusted to adapt to different working needs. The design of the adjustment holes allows the position of the generator body to be quickly adjusted within a certain range, avoiding the problem of inconvenience in fixing the position. The inner horizontal plate is symmetrically fixed on the inner wall of the cabinet, ensuring that the generator body can remain stable after the position is adjusted, ensuring the long-term stable operation of the equipment.

[0019] This utility model features an installation snap-fit ​​mechanism. The design of components such as the extension frame, guide block, and moving block allows the snap-fit ​​rod and snap-fit ​​tube to quickly engage and snap together, making the installation and disassembly process simpler and faster, reducing maintenance and adjustment time and costs. The design of the guide groove and toothed plate in conjunction with the worm gear ensures that the moving block can accurately align with the snap-fit ​​tube, improving the installation accuracy and stability, and avoiding equipment instability caused by errors.

[0020] This utility model is equipped with a locking auxiliary mechanism. The design of the top fixing ring and the shrink block can ensure the stable rotation of the outer rotating ring, avoid the jamming phenomenon caused by uneven rotation, and improve the stability and reliability of the device. Through the cooperation and sliding of the centripetal rail and the shrink block, the precise movement of the shrink block on the locking tube is ensured, which enhances the operating accuracy of the device and reduces the malfunctions or jamming phenomena that may be caused by inaccurate movement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the cabinet in this utility model;

[0023] Figure 3 This is a schematic diagram of the generator body in this utility model;

[0024] Figure 4 This is a schematic diagram of the installation snap-fit ​​mechanism and snap-fit ​​auxiliary mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the mounting clipping mechanism and the clipping auxiliary mechanism in this utility model.

[0026] In the diagram: 1. Cabinet; 2. Generator body; 3. Inner horizontal plate; 4. Adjustment hole; 5. Side frame; 6. Connecting pipe; 7. Connecting rod; 8. Extension frame; 9. Guide block; 10. Moving block; 11. Guide groove; 12. Slot; 13. Gear plate; 14. Worm gear; 15. Top fixing ring; 16. Shrink block; 17. Tensioning spring; 18. Outer rotating ring; 19. Rotary support block; 20. Cabinet door; 21. Smoke exhaust pipe; 22. Exhaust pipe; 23. Fuel assembly; 24. Outer gear ring; 25. Support plate; 26. Centripetal rail; 701. Rotating gear. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5A high-efficiency fuel-fired heat exchange steam generator cabinet includes a cabinet body 1, a positioning installation mechanism, a mounting and snapping mechanism, and a snapping auxiliary mechanism. The positioning installation mechanism includes a generator body 2, an inner horizontal plate 3, adjustment holes 4, a side frame 5, a snap-fit ​​pipe 6, and a snap-fit ​​rod 7. The inner horizontal plate 3 is symmetrically fixedly installed on the inner wall of the cabinet body 1. The side frame 5 is installed on both sides of the generator body 2. Multiple sets of adjustment holes 4 are provided on the inner horizontal plate 3. The snap-fit ​​pipe 6 is fixedly installed on the side frame 5. The snap-fit ​​rod 7 can pass through different adjustment holes 4 and the side frame 5, and quickly snaps into place with the snap-fit ​​pipe 6. The mounting and snapping mechanism includes an extension frame 8, a guide block 9, a moving block 10, a guide groove 11, a snapping groove 12, a toothed plate 13, and a worm gear 14. The extension frame 8 is laterally slidably mounted on the side wall of the snapping tube 6, and the moving block 10 is longitudinally slidably mounted on the outer wall of the snapping tube 6. The guide groove 11 is located on the inner wall of the moving block 10. One end of the extension frame 8 is slidably connected to the guide groove 11, so that the extension frame 8 extends into or away from the snapping groove 12 on the side wall of the snapping rod 7. The toothed plate 13 is mounted on the side of the moving block 10, and the worm gear 14 is meshed with the toothed plate 13.

[0031] In this embodiment, firstly, the symmetrically fixed inner horizontal plates 3 on the inner wall of the cabinet 1 provide a basic support platform. Multiple sets of adjustment holes 4 are provided on the inner horizontal plates 3 to offer different height options for the generator body 2. Securing tubes 6 are fixed on the side frames 5 on both sides of the generator body 2, which cooperate with the locking rods 7 passing through the adjustment holes 4 of the inner horizontal plates 3 to form a quick-connect mechanism. During installation, the appropriate adjustment hole 4 is selected as needed, and the locking rod 7 is passed through the adjustment hole 4 and engaged with the locking tube 6 on the side frame 5, achieving precise positioning and stable installation of the generator body 2. This allows for adjustment of the generator body 2's position according to actual needs, improving equipment adaptability, and enabling installation and position adjustment without complex tools. When the locking rod 7 is inserted into the locking tube 6... Subsequently, the extension frame 8 slides laterally under the drive of the moving block 10. One end of the extension frame 8 can extend into or exit the slot 12 on the side wall of the locking rod 7 through the cooperation with the guide groove 11 on the inner wall of the moving block 10. During the locking process, the moving block 10 slides longitudinally along the outer wall of the locking tube 6 under the drive of the worm gear 14. The guide groove 11 guides the extension frame 8 to move towards the locking rod 7. The extension frame 8 enters the slot 12 on the side wall of the locking rod 7 to form a firm lock. When unlocking, the worm gear 14 rotates in the opposite direction to drive the moving block 10 to move in the opposite direction. The extension frame 8 then exits the slot 12 and releases the locking rod 7. Throughout the process, the meshing of the worm gear 14 with the toothed plate 13 on the side of the moving block 10 provides precise motion control and self-locking function, ensuring the stability of the connection and the convenience of operation.

[0032] The locking auxiliary mechanism includes a top fixing ring 15, a shrink block 16, a tightening spring 17, an outer rotating ring 18, and a pivot support block 19. The top fixing ring 15 is fixedly installed on the outer wall of the locking tube 6. Multiple sets of shrink blocks 16 are slidably installed at the bottom end of the top fixing ring 15. The tightening spring 17 is installed between adjacent shrink blocks 16. The outer rotating ring 18 is rotatably installed on the outer wall of the locking tube 6. The pivot support block 19 is installed at the top end of the outer rotating ring 18. Multiple sets of pivot support blocks 19 are provided. The pivot support blocks 19 pass through the spaces between adjacent shrink blocks 16 in sequence, so that the outer rotating ring 18 can rotate stably.

[0033] In this embodiment, a top retaining ring 15 is fixedly installed on the outer wall of the retaining tube 6. Multiple sets of contraction blocks 16 at the bottom of the top retaining ring 15 maintain a centripetal state under the action of a tension spring 17. An outer rotating ring 18 is rotatably mounted on the outer wall of the retaining tube 6. Multiple sets of rotating support blocks 19 at its top pass sequentially between adjacent contraction blocks 16. During operation, the outer rotating ring 18 is manually rotated, and the rotating support blocks 19 push the contraction blocks 16 to compress the tension spring 17. Under the reaction force of the tension spring 17, appropriate resistance and positioning sensation are generated. The outer toothed ring 24 at the bottom of the outer rotating ring 18 meshes with the rotating teeth 701 on the support plate 25, causing the rotating teeth 701 to rotate. The rotating teeth 701 mesh with the worm gear 14, transmitting the rotational motion to the worm gear 14. The worm gear 14 then drives the toothed plate 13 and the moving block 10 to move longitudinally. The centripetal rail 26 at the bottom of the top retaining ring 15 guides the contraction blocks 16 to slide radially, ensuring smooth and accurate movement. This design provides a convenient manual operation method and precise transmission control, simplifying the locking and unlocking process.

[0034] Please see Figures 1-5 As a supplementary implementation method for a fuel-fired high-efficiency heat exchange steam generator cabinet, which includes a position installation mechanism, an installation snap-fit ​​mechanism, and a snap-fit ​​auxiliary mechanism: A cabinet door 20 is installed at the front open end of the cabinet body 1; an exhaust pipe 21 is installed and connected to the top end of the generator body 2, and the exhaust pipe 21 passes through the top end of the cabinet body 1; an exhaust pipe 22 is installed on the side of the generator body 2, and the exhaust pipe 22 passes through the side end of the cabinet body 1; a fuel assembly 23 is installed at the bottom end of the cabinet body 1, and the bottom end of the fuel assembly 23 is set with the bottom end of the generator body 2; an external toothed ring 24 is installed at the bottom end of the outer rotating ring 18; a support plate 25 is fixedly installed on the outer wall of the snap-fit ​​pipe 6; a rotating tooth 701 is installed on the upper limit rotating part of the support plate 25; the external toothed ring 24 is meshed with the rotating tooth 701; one end of the worm gear 14 is meshed with the rotating tooth 701; a centripetal rail 26 is installed at the bottom end of the top fixing ring 15; and a shrink block 16 is slidably set in conjunction with the centripetal rail 26.

[0035] More specifically, the overall operation of the fuel-fired high-efficiency heat exchange steam generator integrates equipment installation, locking, and actual production functions. First, open the cabinet door 20. Select the appropriate adjustment hole 4 on the inner horizontal plate 3 as needed, and position the generator body 2 using the side frame 5. Pass the locking rod 7 through the adjustment hole 4 and align it with the locking pipe 6 to form a preliminary connection. Rotate the outer rotating ring 18 to operate the locking auxiliary mechanism, driving the transmission chain to allow the extension frame 8 to enter the locking groove 12 on the side wall of the locking rod 7, completing the secure installation of the generator body 2. After installation, start the fuel assembly 23 at the bottom of the cabinet 1 to provide a heat source for the generator body 2. The heat generated by fuel combustion is transferred to the generator body 2 through the high-efficiency heat exchange structure. The working medium generates steam, which is output through the side exhaust pipe 22 to meet actual usage requirements. The exhaust gas generated by combustion is discharged outside the cabinet 1 through the exhaust pipe 21 on the top of the generator body 2. When it is necessary to maintain or adjust the position of the generator body 2, the reverse operation of the locking auxiliary mechanism is used to release the locking state of the extension frame 8 and the locking rod 7 slot 12, so that the generator body 2 can be easily disassembled or repositioned. This modular design and convenient locking mechanism greatly improve the maintainability and flexibility of the equipment, while ensuring the stability and safety during operation.

[0036] In summary, during use or operation of the overall equipment: When the positioning mechanism is required, it enables flexible installation and position adjustment of the generator body 2. First, the symmetrically fixed inner horizontal plates 3 on the inner wall of the cabinet 1 provide a basic support platform. Multiple sets of adjustment holes 4 are provided on the inner horizontal plates 3, offering different height installation options for the generator body 2. The side frames 5 on both sides of the generator body 2 are fixed with clamping pipes 6, which cooperate with the clamping rods 7 passing through the adjustment holes 4 of the inner horizontal plates 3 to form a quick connection mechanism. During installation, the appropriate adjustment hole 4 is selected as needed, and the clamping rod 7 is passed through the adjustment hole 4 and then clamped with the clamping pipe 6 on the side frame 5, achieving precise positioning and stable installation of the generator body 2. This allows the position of the generator body 2 to be adjusted according to actual needs, improving the adaptability of the equipment, and installation and position adjustment can be completed without complicated tools.

[0037] When the snap-fit ​​mechanism is in operation, it is responsible for locking and unlocking the snap-fit ​​tube 6 and the snap-fit ​​rod 7. After the snap-fit ​​rod 7 is inserted into the snap-fit ​​tube 6, the extension frame 8 slides laterally under the drive of the moving block 10. One end of the extension frame 8 can extend into or exit the snap-fit ​​groove 12 on the side wall of the snap-fit ​​rod 7 through the cooperation with the guide groove 11 on the inner wall of the moving block 10. During the locking process, the moving block 10 slides longitudinally along the outer wall of the snap-fit ​​tube 6 under the drive of the worm gear 14. The guide groove 11 guides the extension frame 8 to move towards the snap-fit ​​rod 7. The extension frame 8 enters the snap-fit ​​groove 12 on the side wall of the snap-fit ​​rod 7 to form a firm lock. When unlocking, the worm gear 14 rotates in the opposite direction to drive the moving block 10 to move in the opposite direction. The extension frame 8 then exits the snap-fit ​​groove 12, releasing the snap-fit ​​rod 7. Throughout the process, the meshing of the worm gear 14 and the toothed plate 13 on the side of the moving block 10 provides precise motion control and self-locking function, ensuring the stability of the connection and the convenience of operation.

[0038] When the locking auxiliary mechanism is required to operate, a top retaining ring 15 is fixedly installed on the outer wall of the locking tube 6. Multiple sets of contraction blocks 16 at the bottom of the top retaining ring 15 are kept in a centripetal state under the action of the tension spring 17. An outer rotating ring 18 is rotatably mounted on the outer wall of the locking tube 6. Multiple sets of rotating support blocks 19 at its top pass sequentially between adjacent contraction blocks 16. During operation, the outer rotating ring 18 is manually rotated, and the rotating support blocks 19 push the contraction blocks 16 to compress the tension spring 17. Under the reaction force of the tension spring 17, appropriate resistance and positioning sensation are generated. The outer toothed ring 24 at the bottom of the outer rotating ring 18 meshes with the rotating teeth 701 on the support plate 25, causing the rotating teeth 701 to rotate. The rotating teeth 701 mesh with the worm gear 14, transmitting the rotational motion to the worm gear 14. The worm gear 14 then drives the toothed plate 13 and the moving block 10 to move longitudinally. The centripetal rail 26 at the bottom of the top retaining ring 15 guides the contraction blocks 16 to slide radially, ensuring smooth and accurate movement. This design provides convenient manual operation and precise transmission control, simplifying the locking and unlocking process.

[0039] The overall operation of the fuel-fired high-efficiency heat exchange steam generator integrates equipment installation, locking, and actual production functions. First, open the cabinet door 20. Select the appropriate adjustment hole 4 on the inner horizontal plate 3 as needed. Position the generator body 2 using the side frame 5. Align the locking rod 7 through the adjustment hole 4 with the locking pipe 6 to form a preliminary connection. Rotate the outer rotating ring 18 to operate the locking auxiliary mechanism, driving the transmission chain to allow the extension frame 8 to enter the locking groove 12 on the side wall of the locking rod 7, completing the secure installation of the generator body 2. After installation, start the fuel assembly 23 at the bottom of the cabinet 1 to provide a heat source for the generator body 2. The heat generated by fuel combustion is transferred to the generator body 2 through the high-efficiency heat exchange structure. The working medium generates steam, which is output through the side exhaust pipe 22 to meet actual usage requirements. The exhaust gas generated by combustion is discharged outside the cabinet 1 through the exhaust pipe 21 on the top of the generator body 2. When it is necessary to maintain or adjust the position of the generator body 2, the reverse operation of the locking auxiliary mechanism is used to release the locking state of the extension frame 8 and the locking rod 7 slot 12, so that the generator body 2 can be easily disassembled or repositioned. This modular design and convenient locking mechanism greatly improve the maintainability and flexibility of the equipment, while ensuring the stability and safety during operation.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fuel-fired high-efficiency heat exchange steam generator, comprising a cabinet body (1), a position mounting mechanism, a mounting snap-fit ​​mechanism, and a snap-fit ​​auxiliary mechanism, characterized in that: The mounting mechanism includes a generator body (2), an inner horizontal plate (3), adjustment holes (4), a side frame (5), a locking tube (6), and a locking rod (7). The inner horizontal plate (3) is symmetrically fixed on the inner wall of the cabinet (1). The side frame (5) is installed on both sides of the generator body (2). Multiple sets of adjustment holes (4) are provided on the inner horizontal plate (3). The locking tube (6) is fixedly installed on the side frame (5). The locking rod (7) can pass through different adjustment holes (4) and the side frame (5). The mounting locking mechanism includes an extension frame (8). The device comprises a guide block (9), a moving block (10), a guide groove (11), a slot (12), a toothed plate (13), and a worm gear (14). The extension frame (8) is slidably mounted on the side wall of the slotted tube (6). The moving block (10) is slidably mounted on the outer wall of the slotted tube (6). The guide groove (11) is located on the inner wall of the moving block (10). One end of the extension frame (8) is slidably connected to the guide groove (11). The toothed plate (13) is mounted on the side of the moving block (10). The worm gear (14) is meshed with the toothed plate (13).

2. The fuel-fired high-efficiency heat exchange steam generator according to claim 1, characterized in that: The locking auxiliary mechanism includes a top fixing ring (15), a shrink block (16), a tightening spring (17), an outer rotating ring (18), and a pivot block (19). The top fixing ring (15) is fixedly installed on the outer wall of the locking tube (6). Multiple sets of shrink blocks (16) are slidably installed at the bottom end of the top fixing ring (15). The tightening spring (17) is installed between adjacent shrink blocks (16). The outer rotating ring (18) is limited to rotate on the outer wall of the locking tube (6). The pivot block (19) is installed at the top end of the outer rotating ring (18). Multiple sets of pivot blocks (19) are provided. The pivot blocks (19) pass through the adjacent shrink blocks (16) in sequence, so that the outer rotating ring (18) rotates stably.

3. The fuel-fired high-efficiency heat exchange steam generator according to claim 1, characterized in that: The front opening of the cabinet (1) is fitted with a cabinet door (20), and the top end of the generator body (2) is fitted with a smoke exhaust pipe (21), which is installed through the top end of the cabinet (1).

4. The fuel-fired high-efficiency heat exchange steam generator according to claim 1, characterized in that: An exhaust pipe (22) is installed on the side of the generator body (2), and the exhaust pipe (22) is installed through the side end of the cabinet (1).

5. The fuel-fired high-efficiency heat exchange steam generator according to claim 1, characterized in that: A fuel assembly (23) is installed at the bottom of the cabinet (1), and the bottom of the fuel assembly (23) is set at the bottom of the generator body (2).

6. The fuel-fired high-efficiency heat exchange steam generator according to claim 2, characterized in that: An external toothed ring (24) is installed at the bottom end of the outer rotating ring (18), and a support plate (25) is fixedly installed on the outer wall of the clamping pipe (6).

7. The fuel-fired high-efficiency heat exchange steam generator according to claim 6, characterized in that: The support plate (25) is equipped with a rotating tooth (701) for upper limit rotation. The outer toothed ring (24) is meshed with the rotating tooth (701), and one end of the worm (14) is meshed with the rotating tooth (701).

8. The fuel-fired high-efficiency heat exchange steam generator according to claim 2, characterized in that: The bottom end of the top fixing ring (15) is provided with a centripetal rail (26), and the shrink block (16) and the centripetal rail (26) are arranged to slide centripetally.

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