Vertical single-loop pipe gas steam generator with multi-stage heat exchange structure

Abstract

The invention discloses a vertical single-coil-pipe gas steam generator with a multistage heat exchange structure, and belongs to the technical field of steam generators, the vertical single-coil-pipe gas steam generator comprises a tank body, a plurality of groups of supporting legs are fixedly mounted on the lower end face of the tank body, a fixing belt sleeves the outer surface of the tank body, a combustion chamber is fixedly mounted on the lower end face in the tank body, and a heat exchange pipe is fixedly mounted in the tank body; the outer surface of the tank body is communicated with a valve, the valve is communicated with one end of a heat exchange pipe, and the other end of the heat exchange pipe is communicated with the combustion chamber. The annular cleaning piece is adopted to conduct targeted cleaning on the heat exchange pipe, scale deposition on the pipe wall is effectively removed, meanwhile, the double-layer vibrating piece is arranged to conduct reinforced cleaning on the interior of the tank body, the overall scale removal effect is improved, the water-in-pipe structural form is further adopted, the inner wall of equipment can make contact with and be cleaned more easily while the heat exchange efficiency is improved, and the service life of the equipment is prolonged. The problem of heat exchange efficiency reduction caused by scale accumulation is greatly reduced, the service life of equipment is prolonged, and the operation stability and maintenance convenience are improved.

Description

Technical Field

[0001] This invention relates to the field of steam generator technology, and more specifically, to a vertical single-coil gas-fired steam generator with a multi-stage heat exchange structure. Background Technology

[0002] A steam generator, also called a steam heat source machine (commonly known as a boiler), is a mechanical device that uses the heat energy of fuel or other energy sources to heat water into hot water or steam. Steam generators are mainly suitable for garment factories, dry cleaners, restaurants, steamer shops, canteens, restaurants, factories, mines, bean product factories, and other places. Steam generators are mainly classified according to the fuel they use, and can be divided into electromagnetic steam generators, electric steam generators, oil-fired steam generators, and gas-fired steam generators.

[0003] Existing steam generators typically employ a flame-tube structure, where water flows inside the tube and a flame burns outside for heating. This method suffers from poor thermal conductivity and a small heating area, resulting in slow water boiling and low thermal efficiency, impacting overall equipment operating efficiency. Furthermore, scale easily accumulates inside the water tubes over long-term use, and due to structural limitations, cleaning is difficult. Scale buildup can cause pipe blockages, further reducing heat exchange efficiency and even posing safety hazards. In addition, frequent maintenance and descaling increase labor costs and downtime, hindering stable equipment operation and efficient production. Therefore, there is an urgent need to improve the structural design of steam generators to enhance thermal efficiency and facilitate routine maintenance. Summary of the Invention

[0004] To address the problems existing in the prior art, the purpose of this invention is to provide a vertical single-coil gas-fired steam generator with a multi-stage heat exchange structure, which can improve heat exchange efficiency and facilitate scale removal.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A vertical single-coil gas-fired steam generator with a multi-stage heat exchange structure includes a tank, a support frame, and an economizer. Multiple sets of support legs are fixedly installed on the lower end face of the tank, and these support legs are fixedly connected to the support frame. An economizer is fixedly installed on the upper end face of the support frame. An igniter is installed on the lower side of the tank. A fixing band is fitted onto the outer surface of the tank. A combustion chamber is fixedly installed on the lower end face of the tank's interior. A heat exchange tube is fixedly installed inside the tank. A valve is connected to the outer surface of the tank, and the valve is connected to one end of the heat exchange tube, while the other end of the heat exchange tube is connected to the combustion chamber. Multiple main steam valves are connected to the upper end face of the tank. A scale removal mechanism is installed inside the tank, comprising an inner cavity opened within the tank. A motor is fixedly installed on the upper end face of the inner cavity. The scale removal mechanism includes a scraper installed inside the tank, comprising a threaded rod rotatably connected inside the tank. The output shaft of the motor extends into the tank and is fixedly connected to the threaded rod.

[0007] The outer surface of the threaded rod is helically connected to a threaded sleeve, and a transmission rod is fixedly installed on the outer surface of the threaded sleeve. The transmission rod is located between two adjacent sets of heat exchange tubes, and a scraper is fixedly installed at the end of the transmission rod. The scraper is inclined and closely attached to the inner wall of the tank.

[0008] The scale cleaning mechanism includes an annular cleaning element disposed on the outer surface of the heat exchange tube. The annular cleaning element includes a toothed disc disposed inside the inner cavity. The toothed disc is fixedly mounted on the outer surface of the motor output shaft.

[0009] A gear is provided on one side of the gear disc, and an inner concave rod is rotatably connected inside the tank. The upper end of the inner concave rod extends into the inner cavity and is fixedly connected to the gear.

[0010] The outer surface of the concave rod is fitted with a concave sleeve, the concave sleeve is slidably connected to the concave rod, the concave sleeve is rotatably connected to the transmission rod, and a gear is fixedly installed on the upper end face of the concave sleeve.

[0011] The outer surfaces of two adjacent sets of heat exchange tubes are fitted with sleeve plates, which are fixedly connected to the transmission rod. The outer surfaces of the heat exchange tubes are fitted with cleaning sleeves, which are rotatably connected to the sleeve plates.

[0012] A toothed ring is fixedly installed on the outer surface of the cleaning sleeve, and the toothed ring meshes with a gear. A nylon hard bristle brush and an inner scraping ring are fixedly installed on the inner wall of the cleaning sleeve.

[0013] The scale cleaning mechanism also includes a double-layer vibrating component located below the scraper. The double-layer vibrating component includes a protrusion fixedly installed on the upper end face of the gear two, a fixing rod fixedly installed on the upper end face of the transmission rod, and a fixing plate fixedly installed at the end of the fixing rod. The fixing plate is sleeved on the outer surface of the concave rod.

[0014] A transmission disc is provided on the lower side of the fixed plate. A fixed column is fixedly installed on the upper end face of the transmission disc. A sleeve is fixedly installed on the lower end face of the fixed plate. The sleeve is slidably connected to the fixed column. A spring is fixedly installed between the transmission disc and the fixed plate. A second protrusion is fixedly installed on the lower end face of the transmission disc. Multiple sets of protrusions are provided corresponding to each other and are arranged in a ring-shaped, dispersed, and staggered manner.

[0015] A connector is fixedly mounted on the outer surface of the transmission disc. A groove is formed on the upper end face of the transmission rod. A slider is slidably connected inside the groove. A connecting rod is rotatably connected between the slider and the connector. A scraper is provided on the lower side of the scraper. A slider is fixedly mounted on the lower end face of the scraper. A groove is formed on the upper end face of the scraper. The slider is slidably connected to the groove. A connector is fixedly mounted on the lower end face of the scraper. A connecting rod is rotatably connected between the connector and the slider.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] (1) This solution achieves automatic cleaning of scale inside the equipment by setting up a scale removal mechanism. A ring-shaped cleaning component is used to clean the heat exchange tubes in a targeted manner, effectively removing scale buildup on the tube walls. At the same time, a double-layer vibrating component is set up to enhance the cleaning of the inside of the tank, improving the overall descaling effect. This application also adopts a water-encased tube structure, which improves heat exchange efficiency while making the inner wall of the equipment easier to contact and clean, greatly reducing the problem of heat exchange efficiency decline caused by scale accumulation, extending the service life of the equipment, and improving operational stability and maintenance convenience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the tank body of the present invention;

[0020] Figure 3 This is a cross-sectional view of the tank body of the present invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 For the present invention Figure 3Enlarged view of point B in the middle;

[0023] Figure 6 For the present invention Figure 3 Enlarged diagram of point C in the middle.

[0024] Explanation of the labels in the diagram:

[0025] 1. Tank body; 2. Fixing belt; 3. Support leg; 4. Valve; 5. Main steam valve; 6. Combustion chamber; 7. Heat exchange tube; 8. Inner cavity; 9. Motor; 10. Threaded rod; 11. Threaded sleeve; 12. Transmission rod; 13. Scraper 1; 14. Gear disc; 15. Concave rod; 16. Gear 1; 17. Concave sleeve; 18. Gear 2; 19. Sleeve plate; 20. Cleaning sleeve; 21. Gear ring; 22. Convex... 1. Block 1; 23. Fixed rod; 24. Fixed plate; 25. Sleeve; 26. Fixed column; 27. Transmission disc; 28. Spring; 29. ​​Protrusion 2; 30. Connector 1; 31. Slide groove 1; 32. Slider 1; 33. Connecting rod 1; 34. Slider 2; 35. Scraper 2; 36. Slide groove 2; 37. Connector 2; 38. Connecting rod 2; 39. Support frame; 40. Energy saver; 41. Ignition device. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1 to 5 A vertical single-coil gas-fired steam generator with a multi-stage heat exchange structure includes a tank 1, a support frame 39, and an economizer 41. Multiple sets of support legs 3 are fixedly installed on the lower end face of the tank 1, and the support legs 3 are fixedly connected to the support frame 39. The economizer 41 is fixedly installed on the upper end face of the support frame 39. An igniter 40 is installed on the lower side of the tank 1. A fixing band 2 is fitted onto the outer surface of the tank 1. A combustion chamber 6 is fixedly installed on the lower end face of the inside of the tank 1. Heat exchange tubes 7 are fixedly installed inside the tank 1. A valve 4 is connected to the outer surface of the tank 1. Door 4 is connected to one end of heat exchange tube 7, and the other end of heat exchange tube 7 is connected to combustion chamber 6. Multiple main steam valves 5 are connected to the upper end face of tank body 1. A scale removal mechanism is provided inside tank body 1. The scale removal mechanism includes an inner cavity 8 opened inside tank body 1. A motor 9 is fixedly installed on the upper end face of the inner cavity 8. The scale removal mechanism includes a scraper provided inside tank body 1. The scraper includes a threaded rod 10 rotatably connected inside tank body 1. The output shaft of motor 9 extends into the inside of tank body 1 and is fixedly connected to threaded rod 10.

[0028] The outer surface of the threaded rod 10 is helically connected to a threaded sleeve 11. A transmission rod 12 is fixedly installed on the outer surface of the threaded sleeve 11. The transmission rod 12 is located between two adjacent sets of heat exchange tubes 7. A scraper 13 is fixedly installed at the end of the transmission rod 12. The scraper 13 is inclined and closely attached to the inner wall of the tank 1.

[0029] The scale cleaning mechanism includes an annular cleaning element disposed on the outer surface of the heat exchange tube 7. The annular cleaning element includes a toothed disc 14 disposed inside the inner cavity 8. The toothed disc 14 is fixedly mounted on the outer surface of the output shaft of the motor 9.

[0030] A gear 16 is provided on one side of the gear disc 14, and an inner concave rod 15 is rotatably connected inside the tank body 1. The upper end of the inner concave rod 15 extends into the inner cavity 8 and is fixedly connected to the gear 16.

[0031] An inner concave sleeve 17 is fitted on the outer surface of the inner concave rod 15. The inner concave sleeve 17 is slidably connected to the inner concave rod 15 and rotatably connected to the transmission rod 12. A gear 18 is fixedly installed on the upper end face of the inner concave sleeve 17.

[0032] The outer surfaces of two adjacent heat exchange tubes 7 are fitted with sleeve plates 19, which are fixedly connected to the transmission rod 12. The outer surfaces of the heat exchange tubes 7 are fitted with cleaning sleeves 20, which are rotatably connected to the sleeve plates 19.

[0033] A toothed ring 21 is fixedly installed on the outer surface of the cleaning sleeve 20. The toothed ring 21 meshes with the gear 18. A nylon hard bristle brush and an inner scraper ring are fixedly installed on the inner wall of the cleaning sleeve 20.

[0034] When it is necessary to clean the scale on the inner wall of tank 1, there is no need to stop the machine. Simply drive motor 9, so that the output shaft of motor 9 drives threaded rod 10 to rotate. Threaded sleeve 11 is helically connected to threaded rod 10, so threaded sleeve 11 carries multiple sets of transmission rods 12, and the sleeves 19 and scraper 13 on the transmission rods 12 are displaced. Scraper 13 is in close contact with the inner wall of tank 1, thus scraping away the scale accumulated on the inner wall of tank 1. Simultaneously, the output shaft of motor 9 carries gear disc 14 to rotate, and multiple sets of concave... The gears on rod 15 mesh with the gear disk 14, so the concave rod 15 will rotate synchronously. The concave sleeve 17 rotatably connected to the transmission rod 12 is slidably connected to the concave rod 15, so the concave sleeve 17 will carry the gear to rotate. The gear meshes with the gear ring 21 on the cleaning sleeve 20, so the cleaning sleeve 20 can rotate continuously on the outer surface of the heat exchange tube 7 and move synchronously with the displacement of the transmission rod 12 on the outer surface of the heat exchange tube 7. The scraping ring on the inner wall of the cleaning sleeve 20 scrapes off the scale on the outer surface of the heat exchange tube 7 in conjunction with the hard brush.

[0035] The scale cleaning mechanism also includes a double-layer vibrating component located on the lower side of the scraper 13. The double-layer vibrating component includes a protrusion 22 fixedly installed on the upper end face of the gear 18, a fixing rod 23 fixedly installed on the upper end face of the transmission rod 12, and a fixing plate 24 fixedly installed at the end of the fixing rod 23. The fixing plate 24 is sleeved on the outer surface of the concave rod 15.

[0036] A transmission disc 27 is provided on the lower side of the fixed plate 24. A fixed post 26 is fixedly installed on the upper end face of the transmission disc 27. A sleeve 25 is fixedly installed on the lower end face of the fixed plate 24. The sleeve 25 is slidably connected to the fixed post 26. A spring 28 is fixedly installed between the transmission disc 27 and the fixed plate 24. A second protrusion 29 is fixedly installed on the lower end face of the transmission disc 27. Multiple sets of first protrusion 22 and second protrusion 29 are provided correspondingly and are arranged in a ring-shaped, dispersed, and staggered manner.

[0037] A connector 30 is fixedly mounted on the outer surface of the transmission disc 27. A groove 31 is provided on the upper end face of the transmission rod 12. A slider 32 is slidably connected inside the groove 31. A connecting rod 33 is rotatably connected between the slider 32 and the connector 30. A scraper 35 is provided on the lower side of the scraper 13. A slider 34 is fixedly mounted on the lower end face of the scraper 13. A groove 36 is provided on the upper end face of the scraper 35. The slider 34 is slidably connected to the groove 36. A connector 37 is fixedly mounted on the lower end face of the scraper 35. A connecting rod 38 is rotatably connected between the connector 37 and the slider 32.

[0038] The rotation of gear 218 causes protrusion 122 to rotate. When protrusion 122 rotates to protrusion 29, it collides with protrusion 29, causing protrusion 29 to drive transmission disc 27 to compress spring 28 and rise. The sleeve 25 and the fixed column 26 limit and guide the displacement of transmission disc 27. When protrusion 12 rotates away from protrusion 29, transmission disc 27 can descend under the combined action of spring 28 and gravity. Thus, as gear 218 continues to rotate, transmission disc 27 can reciprocate. Transmission disc 27 carries slider 32 to reciprocate inside slide groove 31 through connector 130 and connecting rod 133. Slider 32 is rotatably connected to scraper 2 through connecting rod 238 and connector 237, thus driving scraper 2 to reciprocate. Scraper 2 works with scraper 1 to perform staggered vibration scraping, improving the scraping effect.

[0039] Existing steam generators typically employ a flame-tube structure, where water flows inside the tube and a flame burns outside for heating. This method suffers from poor thermal conductivity and a small heating area, resulting in slow boiling and low thermal efficiency, impacting overall equipment operating efficiency. Furthermore, scale easily accumulates inside the water tubes over long-term use, and due to structural limitations, cleaning is difficult. Scale buildup can cause pipe blockages, further reducing heat exchange efficiency and even posing safety hazards. In addition, frequent maintenance and descaling increase labor costs and downtime, hindering stable operation and efficient production. Therefore, there is an urgent need to improve the structural design of steam generators to enhance thermal efficiency and facilitate routine maintenance. This solution addresses this by incorporating a scale removal mechanism to automatically clean scale inside the equipment. The heat exchange tube 7 is cleaned in a ring-shaped cleaning element to effectively remove scale buildup on the tube wall. At the same time, a double-layer vibrating element is set up to enhance the cleaning of the inside of the tank 1, thereby improving the overall descaling effect. This application also adopts a water-encased tube structure, which improves heat exchange efficiency while making the inner wall of the equipment easier to contact and clean, greatly reducing the problem of reduced heat exchange efficiency caused by scale buildup, extending the service life of the equipment, and improving operational stability and maintenance convenience.

[0040] Usage: It should be noted that the scale removal mechanism in this application is located at the top of the tank 1, above the water surface, and does not come into contact with the water during heat recovery operation to avoid affecting the transmission of the mechanism. The operating principle of the equipment is displacement. External water enters the interior of the tank 1 through the pipe opened on the outer surface of the tank 1 and wraps around the heat exchange tube 7. Then the combustion chamber 6 is started to generate flue gas, which enters the heat exchange tube 7, flows through the annular heat exchange tube 7, and is discharged through the valve 4 and into the external energy saver for further treatment. The heat exchange tube 7 will exchange heat with the flue gas and transfer it to the water, causing the water to heat up and generate steam, which can then be used for subsequent purposes through the main steam valve 5.

[0041] When it is necessary to clean the scale on the inner wall of tank 1, there is no need to stop the machine. Simply drive motor 9, so that the output shaft of motor 9 drives threaded rod 10 to rotate. Threaded sleeve 11 is helically connected to threaded rod 10, so threaded sleeve 11 carries multiple sets of transmission rods 12, and the sleeves 19 and scraper 13 on the transmission rods 12 are displaced. Scraper 13 is in close contact with the inner wall of tank 1, thus scraping away the scale accumulated on the inner wall of tank 1. Simultaneously, the output shaft of motor 9 carries gear disc 14 to rotate, and multiple sets of concave... The gears on rod 15 mesh with the gear disk 14, so the concave rod 15 will rotate synchronously. The concave sleeve 17 rotatably connected to the transmission rod 12 is slidably connected to the concave rod 15, so the concave sleeve 17 will carry the gear to rotate. The gear meshes with the gear ring 21 on the cleaning sleeve 20, so the cleaning sleeve 20 can rotate continuously on the outer surface of the heat exchange tube 7 and move synchronously with the displacement of the transmission rod 12 on the outer surface of the heat exchange tube 7. The scraping ring on the inner wall of the cleaning sleeve 20 scrapes off the scale on the outer surface of the heat exchange tube 7 in conjunction with the hard brush.

[0042] The rotation of gear 218 causes protrusion 122 to rotate. When protrusion 122 rotates to protrusion 29, it collides with protrusion 29, causing protrusion 29 to drive transmission disc 27 to compress spring 28 and rise. The sleeve 25 and the fixed column 26 limit and guide the displacement of transmission disc 27. When protrusion 12 rotates away from protrusion 29, transmission disc 27 can descend under the combined action of spring 28 and gravity. Thus, as gear 218 continues to rotate, transmission disc 27 can reciprocate. Transmission disc 27 carries slider 32 to reciprocate inside slide groove 31 through connector 130 and connecting rod 133. Slider 32 is rotatably connected to scraper 2 through connecting rod 238 and connector 237, thus driving scraper 2 to reciprocate. Scraper 2 works with scraper 1 to perform staggered vibration scraping, improving the scraping effect.

[0043] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A vertical single-coil gas-fired steam generator with a multi-stage heat exchange structure, comprising a tank (1), a support frame (39), and an economizer (41), wherein multiple sets of support legs (3) are fixedly installed on the lower end face of the tank (1), the support legs (3) are fixedly connected to the support frame (39), the economizer (41) is fixedly installed on the upper end face of the support frame (39), and an igniter (40) is provided on the lower side of the tank (1), characterized in that: The outer surface of the tank body (1) is sleeved with a fixing belt (2), the inner lower end surface of the tank body (1) is fixedly installed with a combustion chamber (6), the inside of the tank body (1) is fixedly installed with a heat exchange pipe (7), the outer surface of the tank body (1) is communicatively provided with a valve (4), the valve (4) and one end of the heat exchange pipe (7) are in communication with each other, the other end of the heat exchange pipe (7) is in communication with the combustion chamber (6), the upper end surface of the tank body (1) is communicatively provided with a plurality of main steam valves (5), the inside of the tank body (1) is provided with a scale removing mechanism, the scale removing mechanism comprises an inner cavity (8) formed in the inside of the tank body (1), the inner upper end surface of the inner cavity (8) is fixedly installed with a motor (9), the scale removing mechanism comprises a scraping piece provided in the inside of the tank body (1), the scraping piece comprises a threaded rod (10) rotatably connected in the inside of the tank body (1), the output shaft of the motor (9) extends into the inside of the tank body (1) and is fixedly connected with the threaded rod (10).

2. The vertical single-pass gas-steam generator with a multi-stage heat exchange structure according to claim 1, characterized in that: The outer surface of the threaded rod (10) is spirally transmissionally connected with a threaded sleeve (11), the outer surface of the threaded sleeve (11) is fixedly installed with a transmission rod (12), the transmission rod (12) is arranged between adjacent two groups of heat exchange pipes (7), the end portion of the transmission rod (12) is fixedly installed with a scraper (13), the scraper (13) is arranged in an inclined manner close to the inner wall of the tank body (1).

3. The vertical single-pass gas-steam generator with a multi-stage heat exchange structure according to claim 2, characterized in that: The scale removing mechanism comprises an annular cleaning piece provided on the outer surface of the heat exchange pipe (7), the annular cleaning piece comprises a toothed disc (14) provided in the inside of the inner cavity (8), the toothed disc (14) is fixedly installed on the outer surface of the output shaft of the motor (9).

4. The vertical single-pass gas-steam generator with a multi-stage heat exchange structure according to claim 3, characterized in that: One side of the toothed disc (14) is provided with a gear (16), the inside of the tank body (1) is rotatably connected with an inner recessed rod (15), the upper end of the inner recessed rod (15) extends into the inside of the inner cavity (8) and is fixedly connected with the gear (16).

5. The vertical single-pass gas-steam generator with a multi-stage heat exchange structure according to claim 4, characterized in that: The outer surface of the inner recessed rod (15) is sleeved with an inner recessed sleeve (17), the inner recessed sleeve (17) is slidably connected with the inner recessed rod (15), the inner recessed sleeve (17) is rotatably connected with the transmission rod (12), the upper end surface of the inner recessed sleeve (17) is fixedly installed with a gear (18).

6. The vertical single-pass gas-steam generator with a multi-stage heat exchange structure according to claim 5, characterized in that: The outer surfaces of adjacent two groups of heat exchange pipes (7) are sleeved with a sleeve plate (19), the sleeve plate (19) is fixedly connected with the transmission rod (12), the outer surface of the heat exchange pipe (7) is sleeved with a cleaning sleeve (20), the cleaning sleeve (20) is rotatably connected with the sleeve plate (19).

7. The vertical single-pass gas-steam generator with a multi-stage heat exchange structure according to claim 6, characterized in that: The outer surface of the cleaning sleeve (20) is fixedly installed with a toothed ring (21), the toothed ring (21) is engaged with the gear (18), the inner wall of the cleaning sleeve (20) is fixedly installed with a nylon hard hair brush and an inner scraping ring.

8. The vertical single-pass gas-steam generator with a multi-stage heat exchange structure according to claim 7, characterized in that: The scale cleaning mechanism further comprises a double-layer vibrating piece arranged on the lower side of the first scraper (13), the double-layer vibrating piece comprises a protrusion one (22) fixedly installed on the upper end surface of the gear two (18), the upper end surface of the transmission rod (12) is fixedly installed with a fixed rod (23), the end of the fixed rod (23) is fixedly installed with a fixed plate (24), and the fixed plate (24) is sleeved on the outer surface of the inner recessed rod (15).

9. The vertical single-pass gas-steam generator with a multi-stage heat exchange structure according to claim 8, characterized in that: The lower side of the fixed plate (24) is provided with a transmission disc (27), the upper end surface of the transmission disc (27) is fixedly installed with a fixed column (26), the lower end surface of the fixed plate (24) is fixedly installed with a sleeve (25), the sleeve (25) is in sliding connection with the fixed column (26), the transmission disc (27) and the fixed plate (24) are fixedly installed with a spring (28) therebetween, the lower end surface of the transmission disc (27) is fixedly installed with a protrusion two (29), and a plurality of groups of the protrusion one (22) and the protrusion two (29) are correspondingly arranged and are arranged in a ring-shaped dispersion staggered manner.

10. The vertical single-pass gas-steam generator with a multi-stage heat exchange structure according to claim 9, characterized in that: The outer surface of the transmission disc (27) is fixedly installed with a connecting piece one (30), the upper end surface of the transmission rod (12) is provided with a sliding groove one (31), the sliding groove one (31) is in sliding connection with a sliding block one (32) inside, the sliding block one (32) and the connecting piece one (30) are rotatably connected with a connecting rod one (33), the lower side of the first scraper (13) is provided with a second scraper (35), the lower end surface of the first scraper (13) is fixedly installed with a sliding block two (34), the upper end surface of the second scraper (35) is provided with a sliding groove two (36), the sliding block two (34) and the sliding groove two (36) are in sliding connection, the lower end surface of the second scraper (35) is fixedly installed with a connecting piece two (37), and the connecting piece two (37) and the sliding block one (32) are rotatably connected with a connecting rod two (38).

Images