A steam generator

By using a combination technology of separating components and acidic liquids in the steam generator, the problem of poor scale cleaning effect of traditional steam generators is solved, efficient scale cleaning without scratches is achieved, and heat exchange efficiency is improved.

CN119123399BActive Publication Date: 2025-02-25XINGLANGXING (SHAANXI) ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202411595971.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-02-25
Estimated Expiration
2044-11-11

AI Technical Summary

Technical Problem

Traditional steam generators have poor results when cleaning scale, which affects the heat exchange efficiency of the heat exchange tube.

Method used

A steam generator is designed using a combination technology of separating components and acidic liquids. Through the coordination of the moving plate and the partition, the acidic liquid reacts with the scale to clean the scale while avoiding scratching the surface of the heat exchange tube.

Benefits of technology

It achieves efficient cleaning of scale, avoids scratching the surface of the heat exchange tube, improves heat exchange efficiency, and effectively promotes the reaction between scale and acidic liquid in high-temperature environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of steam boilers, and in particular to a steam generator, which includes a steam boiler body and a first heat exchange tube arranged in the steam boiler body, a partition assembly is arranged on the first heat exchange tube, the partition assembly includes a fixed plate fixed in the steam boiler body and a movable plate slidably connected to the first heat exchange tube and a partition arranged between the movable plate and the fixed plate, the movable plate is passed through a plurality of first heat exchange tubes, and a plurality of movable holes are opened on the movable plate, the plurality of movable holes correspond to a plurality of first heat exchange tubes one by one, and the diameter of the movable hole is larger than the diameter of the first heat exchange tube, the movable plate drives the partition to straighten and then covers the first heat exchange tube, the partition assembly is provided with a liquid adding pipe for adding acidic liquid between the fixed plate and the movable plate, and a plugging assembly for plugging the plurality of movable holes is arranged between the movable plate and the fixed plate. The present application has the effect of facilitating the cleaning of scale.
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Description

Technical Field

[0001] The present application relates to the technical field of steam boilers, and in particular to a steam generator. Background Art

[0002] Steam maintenance is a common process in the production of environmentally friendly materials. Steam is heated by a steam generator so that the heat in the steam is transferred to the components, thereby increasing the temperature and humidity of the components. Traditional steam generators are commonly known as boilers. The working principle is mainly based on the principle of thermodynamics. Heat is generated by burning fuel, and water is heated to a boiling state to produce steam. Steam boilers include shell boilers and water tube boilers. Shell boilers and water tube boilers have different structures, but their working principles are the same. They all use combustion to heat water. The circulating heated water will produce steam after a certain temperature. Finally, the generated steam is passed into the steam pipe. During long-term use, a certain amount of scale will be generated on the outer wall of the heat exchange pipe, and the scale on the outer wall of the heat exchange pipe needs to be cleaned regularly.

[0003] For example, a Chinese patent document with publication number CN114322311B discloses a scale treatment device for gas boiler maintenance, including a furnace, a short smoke tube, a long smoke tube, a first scraper plate, a second scraper plate, and a winch. The first scraper plate is sleeved on the furnace and the short smoke tube, and the second scraper plate is sleeved on the furnace and the long smoke tube. The steel wire rope in the winch is connected to the scraper plate to pull the scraper plate to move back and forth on the furnace and the smoke tube, thereby scraping off the scale outside the furnace and the smoke tube.

[0004] In the above-mentioned related technologies, when cleaning scale, the scraper plate needs to move back and forth to remove the scale on the outer wall of the heat exchange tube. However, during the use of the steam boiler, the adhesion between the scale and the outer wall of the heat exchange tube is relatively large. At the same time, there is a part of scale with relatively high hardness attached to the outer wall of the heat exchange tube. It is not easy to clean the scale only by means of the scraper plate, which affects the heat exchange efficiency of the subsequent heat exchange tube. Summary of the invention

[0005] The present application provides a steam generator, aiming to solve the problem of poor scale cleaning effect in the related art.

[0006] The steam generator provided in this application adopts the following technical solution:

[0007] A steam generator comprises a steam boiler body and a first heat exchange tube arranged in the steam boiler body, a partition assembly is arranged on the first heat exchange tube, the partition assembly comprises a fixed plate fixed in the steam boiler body, a movable plate slidably connected to the first heat exchange tube, and a partition arranged between the movable plate and the fixed plate, the movable plate is passed through a plurality of first heat exchange tubes, and a plurality of movable holes are opened on the movable plate, the plurality of movable holes correspond to the plurality of first heat exchange tubes one by one, and the diameter of the movable hole is larger than the diameter of the first heat exchange tube, the movable plate drives the partition to be straightened and then covers the first heat exchange tube, a liquid adding pipe for adding acidic liquid between the fixed plate and the movable plate is arranged on the partition assembly, a sealing assembly for sealing the plurality of movable holes is arranged between the movable plate and the fixed plate, and a driving assembly for driving the movable plate to slide on the first heat exchange tube is arranged on the steam boiler body.

[0008] By adopting the above technical solution, when it is necessary to clean the scale on the first heat exchange tube, the movable plate moves along the length direction of the first heat exchange tube, and at this time, the partition will be pulled to move, so that the partition is sleeved on the first heat exchange tube. During the movement of the movable plate, since the diameter of the movable hole on the movable plate is larger than the diameter of the first heat exchange tube, the movable plate will not directly contact the first heat exchange tube, thereby avoiding scratching the surface of the first heat exchange tube, and while the movable plate moves, it will also push a part of the water to flow, thereby reducing the amount of water between the movable plate and the fixed plate. During the movement of the movable plate, the space between the movable plate and the fixed plate will become larger, and then the movable hole will be sealed by the sealing assembly, and finally, the acidic liquid will be added between the movable plate and the fixed plate through the liquid adding pipe to make the acidic liquid react with the scale, thereby achieving the purpose of cleaning the scale.

[0009] Optionally, the sealing assembly includes a mounting plate slidably connected to the first heat exchange tube and a sealing block arranged on the mounting plate, a plurality of mounting holes are opened on the mounting plate, the number of the mounting holes corresponds to the number of the movable holes one by one, and the diameter of the mounting hole is the same as the diameter of the movable hole, four sealing blocks are arranged in each mounting hole, the four sealing blocks are slidably connected to the mounting plate, the sealing block includes a sealing part and a mounting part, the mounting part and the sealing part are vertically arranged, and the mounting part is slidably connected to the mounting plate, and the sealing block is provided with a pushing surface for abutting against the inner wall of the movable hole.

[0010] By adopting the above technical solution, after the movable plate moves, the mounting plate moves toward the fixed plate. When moving, the pushing surface will abut against the inner wall of the movable hole. At this time, the four blocking blocks are close to each other to form a ring. Then the inner diameter of the ring is the same as the inner diameter of the first heat exchange tube, and the outer diameter is the same as the diameter of the movable hole. The ring formed at this time can block the movable hole on the movable plate, thereby reducing the acidic liquid in the separation space from flowing into the steam boiler body.

[0011] Optionally, a pulling spring for pulling the four blocking blocks away from each other is provided on the mounting plate, one end of the pulling spring is fixed on the mounting portion, and the other end is fixed on the mounting plate.

[0012] By adopting the above technical solution, under the action of the pulling spring, the four blocking blocks can be moved away from each other, and the inner wall of the blocking block and the surface of the first heat exchange tube are still in a non-contact state.

[0013] Optionally, the fixed plate includes a fixed part and a rotating part, the fixed part is fixedly mounted on the inner wall of the steam boiler body, the rotating part is rotatably connected to the fixed part, and one end of the partition is fixed on the rotating part. A control component is provided on the steam boiler body, and the control component is used to drive the rotating part to rotate within the steam boiler body.

[0014] By adopting the above technical solution, the control component drives the partition to rotate reciprocally, causing the separation membrane to twist. During the twisting process, the acidic solution in the separation space will impact the first heat exchange tube, thereby better cleaning the scale on the first heat exchange tube, achieving the purpose of cleaning the scale without scratching the surface of the first heat exchange tube. At the same time, in a high temperature environment, the scale can better react with the acidic liquid.

[0015] Optionally, the control assembly includes a ring gear fixed on the rotating part, a control shaft rotatably connected to the steam boiler body, and a control gear fixed on the control shaft, and the control gear is meshed with the ring gear.

[0016] By adopting the above technical solution, the control shaft is rotated to drive the control gear to rotate, and then the control gear drives the ring gear and the rotating part to rotate, thereby achieving the purpose of twisting the separator.

[0017] Optionally, a drain pipe is provided on the steam boiler body, the drain pipe is connected to the cavity between the fixed plate and the movable plate, and a control valve is provided on the drain pipe.

[0018] By adopting the above technical solution, the control component drives the rotating part and the separation membrane to twist, which will squeeze the water in the separation space. At this time, the drain pipe is opened, and then the water in the separation space is discharged from the drain pipe, thereby reducing the water in the separation space.

[0019] Optionally, the driving assembly includes a first driving screw and a second driving screw rotatably connected to the steam boiler body, the diameter of the first driving screw is larger than the diameter of the second driving screw, the movable plate and the first driving screw are threadedly connected, a driving block is fixedly mounted on the mounting plate, the driving block is clamped in the threaded groove on the second driving screw, and the mounting plate is slidably connected to the first driving screw, and the movable plate is slidably connected to the second driving screw.

[0020] By adopting the above technical solution, the rotation of the first driving screw can drive the movable plate to move away from or towards the fixed plate, and the rotation of the second driving screw can drive the mounting plate to move away from or towards the movable plate.

[0021] Optionally, a linkage assembly is provided on the steam boiler body; the linkage assembly includes a first linkage gear fixed on the first driving screw, a second linkage gear fixed on the second driving screw, a third linkage gear provided on the control shaft, and a driving gear rotatably connected to the steam boiler body and a driving motor, the output shaft of the driving motor is fixedly connected to the driving gear, the driving gear and the third linkage gear are meshed, the width of the driving gear is greater than the width of the third linkage gear, and an adjusting assembly for driving the third linkage gear to move is provided on the control shaft.

[0022] By adopting the above technical solution, the adjustment component drives the third linkage gear to move, so that the moved third linkage gear is meshed with the second linkage gear or the first linkage gear. When the third linkage gear is meshed with the second linkage gear or the first linkage gear, the third linkage gear and the control shaft are separated, and then when the third linkage gear rotates, it will not drive the control shaft to rotate. At this time, the control shaft, the first drive screw and the second drive screw can be driven to rotate by the drive motor.

[0023] Optionally, the adjustment assembly includes an adjustment sleeve fixed on the third linkage gear, an adjustment rod fixed on the adjustment sleeve and an adjustment cylinder arranged on the steam boiler body, the adjustment rod is slidably connected to the control shaft and is coaxially arranged with the control shaft, a connecting block is arranged on the control shaft, and a connecting groove for plugging in the connecting block is opened on the adjustment sleeve.

[0024] By adopting the above technical solution, when the control shaft needs to rotate, the connecting block is inserted into the connecting groove. At this time, the rotation of the third linkage gear can drive the control shaft to rotate. When the first linkage gear needs to rotate, the adjusting cylinder drives the third linkage gear to move, so that the third linkage gear and the first linkage gear are engaged. At this time, the connecting block is disengaged from the connecting groove, and the rotation of the third linkage gear will not drive the first linkage gear to rotate; similarly, when the third linkage gear and the second linkage gear are engaged, the connecting block is disengaged from the connecting groove, and the adjusting rod rotates on the control shaft.

[0025] In summary, this application has the following beneficial effects:

[0026] 1. The movable plate moves along the length direction of the first heat exchange tube, and at this time, the partition will be pulled to move, so that the partition is sleeved on the first heat exchange tube, and acidic liquid is added between the movable plate and the fixed plate through the liquid adding pipe to make the acidic liquid react with the scale, and then the purpose of cleaning the scale is achieved.

[0027] 2. The control component drives the partition to rotate back and forth, causing the partition membrane to twist. During the twisting process, the acidic solution in the separation space will impact the first heat exchange tube, thereby better cleaning the scale on the first heat exchange tube and achieving the purpose of cleaning the scale without scratching the surface of the first heat exchange tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 2 It is a cross-sectional view of the steam boiler body of an embodiment of the present application.

[0030] Figure 3 It is a schematic diagram of the structure of the partition component of an embodiment of the present application.

[0031] Figure 4 It is a schematic diagram of the control component structure of an embodiment of the present application.

[0032] Figure 5 It is a schematic diagram of the structure of the blocking component of an embodiment of the present application.

[0033] Figure 6 It is a schematic diagram of the blocking block structure of an embodiment of the present application.

[0034] Figure 7 It is a schematic diagram of the linkage component structure of an embodiment of the present application.

[0035] Figure 8 It is a schematic diagram of the structure of the regulating component of an embodiment of the present application.

[0036] Reference numerals: 01, steam boiler body; 02, liquid adding pipe; 03, control valve; 04, drain pipe; 1, heat exchange pipe; 11, furnace; 12, first heat exchange pipe; 13, second heat exchange pipe; 2, partition assembly; 21, fixed plate; 211, fixed part; 212, rotating part; 22, movable plate; 23, partition; 24, movable hole; 3, driving assembly; 31, first driving screw; 32, second driving screw; 4, blocking assembly; 41, mounting plate; 42, blocking block; 421 , blocking part; 422, mounting part; 423, pushing surface; 43, mounting hole; 44, pulling spring; 45, blocking rubber block; 5, control assembly; 51, gear ring; 52, control shaft; 53, control gear; 6, linkage assembly; 61, first linkage gear; 62, second linkage gear; 63, third linkage gear; 64, driving gear; 65, driving motor; 7, adjusting assembly; 71, adjusting sleeve; 72, adjusting rod; 73, adjusting cylinder; 74, connecting block; 75, connecting groove. DETAILED DESCRIPTION

[0037] The following combination Figure 1-Figure 8 This application is described in further detail.

[0038] The present application embodiment discloses a steam generator. Figures 1 to 3 A steam generator includes a steam boiler body 01 and a heat exchange pipe 1 arranged in the steam boiler body 01. A partition component 2 is arranged on the heat exchange pipe 1. The partition component 2 is used to separate water from the heat exchange pipe 1, and then reduce the mixing of scale on the heat exchange pipe 1 and water in the steam boiler body 01. At the same time, a liquid adding pipe 02 is arranged on the partition component 2. After the partition component 2 separates the water and the heat exchange pipe 1, since the main components of the scale include calcium carbonate, calcium sulfate and other substances, an acidic liquid is introduced into the partition component 2 at this time, and the acidic liquid reacts with the scale on the heat exchange pipe 1, and then the purpose of cleaning the scale is achieved.

[0039] In addition, in this embodiment, the acidic liquid can be set to acetic acid. In order to reduce the reaction between the acidic liquid and the heat exchange pipe 1, the concentration of the acidic liquid can be controlled during actual use. At the same time, the material of the heat exchange pipe 1 is also set to corrosion-resistant stainless steel material, such as 304 stainless steel, 316 stainless steel, duplex stainless steel, etc.

[0040] Reference Figures 1 to 3 The heat exchange pipe 1 includes a furnace 11, a first heat exchange tube 12, and a second heat exchange tube 13. The flue gas introduced into the furnace 11, the first heat exchange tube 12, and the second heat exchange tube 13 can heat the water in the steam boiler body 01, and finally form water vapor to steam-curing the concrete components. In this embodiment, the partition component 2 only cleans the scale on the first heat exchange tube 12. The scale on the outer wall of the second heat exchange tube 13 can be cleaned in other embodiments using the same technical solution as in this embodiment. In other embodiments, the partition component 2 of the present application can also be used to clean the scale on the outer walls of the first heat exchange tube 12 and the second heat exchange tube 13 at the same time.

[0041] Reference Figures 2 to 5 The partition assembly 2 includes a fixed plate 21 fixed in the steam boiler body 01, a movable plate 22 slidably connected to the first heat exchange tube 12 and the furnace 11, and a partition 23 arranged between the movable plate 22 and the fixed plate 21. The movable plate 22 is penetrated on multiple first heat exchange tubes 12, and multiple movable holes 24 are opened on the movable plate 22. The multiple movable holes 24 correspond to the multiple first heat exchange tubes 12 one by one, and the diameter of the movable hole 24 is larger than the diameter of the first heat exchange tube 12. In this embodiment, the partition 23 is set as a partition membrane, and the material of the partition membrane is set to polytetrafluoroethylene, so that the partition membrane is resistant to high temperature and acid. When the first heat exchange tube 12 is in a naked state, the partition membrane is in a folded state.

[0042] Reference Figures 2 to 5A driving assembly 3 is provided on the steam boiler body 01, and the driving assembly 3 is used to drive the movable plate 22 to slide on the first heat exchange tube 12, and then move the movable plate 22 along the length direction of the first heat exchange tube 12. At this time, the folded separation membrane will be pulled to move, so that the separation membrane is sleeved on the first heat exchange tube 12. During the movement of the movable plate 22, since the diameter of the movable hole 24 on the movable plate 22 is larger than the diameter of the first heat exchange tube 12, the movable plate 22 will not directly contact the first heat exchange tube 12, thereby avoiding scratching the surface of the first heat exchange tube 12. At the same time as the movable plate 22 moves, it will also push a part of the water to flow, thereby reducing the amount of water between the movable plate 22 and the fixed plate 21. During the movement of the movable plate 22, the space between the movable plate 22 and the fixed plate 21 will become larger. In this embodiment, the space between the movable plate 22 and the fixed plate 21 is defined as a separation space.

[0043] Reference Figures 2 to 5 A sealing assembly 4 for sealing a plurality of movable holes 24 is provided between the movable plate 22 and the fixed plate 21. When the first heat exchange tube 12 is completely covered, an acidic liquid is added into the separation space through the liquid adding pipe 02, and the acidic liquid reacts with the scale. In this embodiment, the liquid adding pipe 02 is fixed on the steam boiler body 01, and is connected to the separation space through the fixed plate 21, and a control valve 03 is provided on the liquid adding pipe 02, and the connection and closing of the liquid adding pipe 02 are realized by the control valve 03.

[0044] Reference Figures 2 to 6 The sealing assembly 4 includes a mounting plate 41 slidably connected to the first heat exchange tube 12 and a sealing block 42 arranged on the mounting plate 41. A plurality of mounting holes 43 are opened on the mounting plate 41. The number of the mounting holes 43 corresponds to the number of the moving holes 24 one by one, and the diameter of the mounting hole 43 is the same as the diameter of the moving hole 24. Four sealing blocks 42 are arranged in each mounting hole 43. The four sealing blocks 42 are slidably connected to the mounting plate 41. When the four sealing blocks 42 are close to each other, a circular ring can be formed. Then, the inner diameter of the circular ring is the same as the inner diameter of the first heat exchange tube 12, and the outer diameter is the same as the diameter of the moving hole 24. At this time, the circular ring formed can block the moving hole 24 on the moving plate 22, so as to reduce the acidic liquid in the separation space from flowing into the steam boiler body 01.

[0045] Reference Figures 2 to 6The blocking block 42 includes a blocking portion 421 and a mounting portion 422. The mounting portion 422 and the blocking portion 421 are vertically arranged, and the mounting portion 422 is slidably connected to the mounting plate 41. A pushing surface 423 is arranged on the blocking block 42. Under the action of the pushing surface 423, the cross section of the blocking block 42 gradually decreases along the direction of the mounting portion 422. In addition, a pulling spring 44 is arranged on the mounting plate 41. One end of the pulling spring 44 is fixed on the mounting portion 422, and the other end is fixed on the mounting plate 41. Under the action of the pulling spring 44, the four blocking blocks 42 can be moved away from each other. At this time, the inner wall of the blocking block 42 and the surface of the first heat exchange tube 12 are still in a non-contact state. Then, the mounting plate 41 is driven to move by the driving component 3. During the movement of the mounting plate 41, the pushing surface 423 will abut against the inner wall of the moving hole 24. Under the action of the moving hole 24, the four blocking blocks 42 in each mounting hole 43 will be pushed closer to each other. Finally, the moving hole 24 will be blocked by the blocking block 42.

[0046] Reference Figures 2 to 6 In order to improve the sealing effect of the sealing block 42 on the moving hole 24, sealing rubber blocks 45 are provided on both sides of the sealing portion 421. When the sealing blocks 42 are close to each other, the sealing rubber blocks 45 will be in an extruded state, thereby making the sealing effect between the two adjacent sealing blocks 42 better.

[0047] Reference Figures 2 to 5 The fixed plate 21 includes a fixed portion 211 and a rotating portion 212. The fixed portion 211 is fixedly mounted on the inner wall of the steam boiler body 01. The rotating portion 212 is rotatably connected to the fixed portion 211, and one end of the partition membrane is fixed to the rotating portion 212. A control component 5 is provided on the steam boiler body 01. The control component 5 is used to drive the rotating portion 212 to rotate in the steam boiler body 01, and then the straightened partition membrane can be twisted. In addition, a drain pipe 04 is provided on the steam boiler body 01, and a control valve 03 is also provided on the drain pipe 04. When the control component 5 drives the rotating portion 212 and the partition membrane to twist, the water in the partition space will be squeezed. At this time, the drain pipe 04 is opened, and then the water in the partition space will be discharged from the drain pipe 04, thereby reducing the water in the partition space.

[0048] After the separation membrane is twisted to discharge a part of the water in the separation space, the control valve 03 closes the drain pipe 04, and then the control component 5 drives the rotating part 212 to rotate to reset the separation membrane. At this time, a certain concentration of acidic liquid is added to the separation space through the liquid adding pipe 02 to mix the acidic liquid and the remaining water in the separation space. At this time, the acidic solution and the scale on the outer wall of the first heat exchange tube 12 react chemically. At the same time, the control component 5 drives one end of the separation membrane to rotate back and forth to twist the separation membrane. During the twisting process, the acidic solution in the separation space will impact the first heat exchange tube 12, so as to better clean the scale on the first heat exchange tube 12, and achieve the purpose of cleaning the scale without scratching the surface of the first heat exchange tube 12. At the same time, in a high temperature environment, the scale can better react with the acidic liquid.

[0049] After a period of reaction, the acidic liquid and scale in the separation space are discharged through the drain pipe 04, so as to facilitate the cleaning of the scale. Then, the driving component 3 leads the mounting plate 41 to move in the reverse direction, and the position of the movable plate 22 remains unchanged. At this time, the movable hole 24 and the pushing surface 423 on the blocking block 42 are separated, and under the action of the pulling spring 44, the four blocking blocks 42 in the mounting hole 43 are moved away from each other, so as to achieve the purpose that the blocking block 42 does not abut against the first heat exchange tube 12 during the reverse movement. After the mounting plate 41 is reset, the driving component 3 drives the movable plate 22 to move in the reverse direction, so that the movable plate 22 is reset, and at the same time, the separation membrane is in a folded state, so as to facilitate the subsequent cleaning of the scale on the first heat exchange tube 12.

[0050] In other embodiments, a rubber pad is provided on the inner side surface of the blocking block 42. When the blocking block 42 forms a circular ring, the rubber pad abuts against the first heat exchange tube 12. The driving assembly 3 drives the movable plate 22 and the blocking block 42 to move simultaneously in a direction close to the fixed plate 21. At this time, the inner side surface of the blocking block 42 abuts against the first heat exchange tube 12. Due to the reaction between the scale on the first heat exchange tube 12 and the acidic liquid, a part of the scale will fall off, and a small amount of scale will still adhere to the first heat exchange tube 12. When the blocking block 42 moves in the opposite direction, the scale on the first heat exchange tube 12 will be further scraped off. At this time, due to the reaction between the scale and the acidic liquid, the scale on the first heat exchange tube 12 can be cleaned more conveniently when the blocking block 42 moves, thereby achieving a better cleaning effect of the scale. Due to the reaction between the scale and the acidic liquid, the adhesion between the scale remaining on the first heat exchange tube 12 and the first heat exchange tube 12 becomes smaller, which facilitates the scraping off of the scale.

[0051] Reference Figures 2 to 6The driving assembly 3 includes a first driving screw 31 and a second driving screw 32 which are rotatably connected to the steam boiler body 01. The diameter of the first driving screw 31 is larger than the diameter of the second driving screw 32. The movable plate 22 and the first driving screw 31 are threadedly connected. A driving block is fixedly installed on the mounting plate 41. The driving block is clamped in the thread groove on the second driving screw 32. The mounting plate 41 is slidably connected to the first driving screw 31, and the movable plate 22 is slidably connected to the second driving screw 32.

[0052] Reference Figures 2 to 7 , the first driving screw 31 can be rotated to drive the movable plate 22 to move away from or close to the fixed plate 21, and the second driving screw 32 can be rotated to drive the mounting plate 41 to move away from or close to the movable plate 22. At the same time, a linkage assembly 6 is provided on the outside of the steam boiler body 01, and the linkage assembly 6 is used to drive the first driving screw 31 or the second driving screw 32 to rotate, and then facilitate the movement of the movable plate 22 and the mounting plate 41. In other embodiments, since the driving block is clamped in the thread groove of the second driving screw 32, when the movable plate 22 moves in the reverse direction, the mounting plate 41 can be pushed to move in the direction close to the fixed plate 21 at the same time, at this time, the second driving screw 32 will rotate, and then the blocking block 42 can clean the scale attached to the first heat exchange tube 12.

[0053] Reference Figures 2 to 7 The control assembly 5 includes a ring gear 51 fixed on the rotating part 212, a control shaft 52 rotatably connected to the steam boiler body 01, and a control gear 53 fixed on the control shaft 52. The control gear 53 is meshed with the ring gear 51. The control shaft 52 is rotated to drive the control gear 53 to rotate, and then the control gear 53 drives the ring gear 51 and the rotating part 212 to rotate, thereby achieving the purpose of twisting the separation membrane.

[0054] Reference Figures 2 to 7 In order to facilitate the rotation of the control shaft 52, the first drive screw 31 and the second drive screw 32, an installation box is provided on the steam boiler body 01, and the linkage assembly 6 is arranged in the installation box; the linkage assembly 6 includes a first linkage gear 61 fixed on the first drive screw 31, a second linkage gear 62 fixed on the second drive screw 32, a third linkage gear 63 arranged on the control shaft 52, and a driving gear 64 rotatably connected to the steam boiler body 01 and a driving motor 65, the output shaft of the driving motor 65 is fixedly connected to the driving gear 64, the driving gear 64 is meshed with the third linkage gear 63, and the width of the driving gear 64 is greater than the width of the third linkage gear 63.

[0055] Reference Figures 2 to 8An adjusting component 7 is provided on the control shaft 52, and the adjusting component 7 is used to drive the third linkage gear 63 to move, so that the moved third linkage gear 63 is meshed with the second linkage gear 62 or the first linkage gear 61. When the third linkage gear 63 is meshed with the second linkage gear 62 or the first linkage gear 61, the third linkage gear 63 and the control shaft 52 are separated, and then when the third linkage gear 63 rotates, it will not drive the control shaft 52 to rotate. At this time, the control shaft 52, the first drive screw 31 and the second drive screw 32 can be driven to rotate by the driving motor 65.

[0056] Reference Figures 2 to 8 The adjusting assembly 7 includes an adjusting sleeve 71 fixed on the third linkage gear 63, an adjusting rod 72 fixed on the adjusting sleeve 71, and an adjusting cylinder 73 arranged on the steam boiler body 01. The cylinder body of the adjusting cylinder 73 is fixed on the steam boiler body 01, and the piston rod is rotatably connected to the third linkage gear 63. The adjusting rod 72 is slidably connected to the control shaft 52 and is coaxially arranged with the control shaft 52. In this embodiment, the adjusting rod 72 is set as a cylindrical structure and can rotate on the control shaft 52; a connecting block 74 is arranged on the control shaft 52, and a connecting groove 75 is opened on the adjusting sleeve 71. The connecting block 74 and the connecting groove 75 are arranged on the control shaft 52. The cross-sections are all set to be hexagonal; when the control shaft 52 needs to rotate, the connecting block 74 is inserted into the connecting groove 75. At this time, the rotation of the third linkage gear 63 can drive the control shaft 52 to rotate. When the first linkage gear 61 needs to rotate, the adjusting cylinder 73 drives the third linkage gear 63 to move, so that the third linkage gear 63 and the first linkage gear 61 are engaged. At this time, the connecting block 74 disengages from the connecting groove 75, and the rotation of the third linkage gear 63 will not drive the first linkage gear 61 to rotate; similarly, when the third linkage gear 63 and the second linkage gear 62 are engaged, the connecting block 74 disengages from the connecting groove 75, and the adjusting rod 72 rotates on the control shaft 52.

[0057] The implementation principle of a steam generator in an embodiment of the present application is as follows: when it is necessary to clean the scale on the first heat exchange tube 12, the driving component 3 drives the movable plate 22 to move in a direction away from the fixed plate 21, and the folded separation membrane will be straightened during the movement, and then the driving component 3 drives the mounting plate 41 to move, and the blocking block 42 will be driven to move simultaneously during the movement of the mounting plate 41, and then the pushing surface 423 on the blocking block 42 will abut against the movable hole 24, and under the action of the movable hole 24, the four blocking blocks 42 in each mounting hole 43 are pushed closer to each other, and finally a circular ring is formed to block the movable hole 24, and then the control component 5 drives the rotating part 212 to rotate to twist the separation membrane, and at the same time as the separation membrane is twisted, the drain pipe 04 is opened to discharge part of the water in the separation space, and then the separation membrane is reset, and at this time, acidic liquid is added to the separation space through the liquid adding pipe 02, and the acidic liquid and the water in the separation space are mixed through the twisting of the separation membrane, and at the same time, the water can also impact the first heat exchange tube 12, so as to better remove the scale on the first heat exchange tube 12.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steam generator, comprising a steam boiler body and a first heat exchange tube arranged in the steam boiler body, characterized in that: A partition assembly is provided on the first heat exchange tube, and the partition assembly includes a fixed plate fixed in the steam boiler body, a movable plate slidably connected to the first heat exchange tube, and a partition arranged between the movable plate and the fixed plate. The movable plate is passed through the plurality of first heat exchange tubes, and a plurality of movable holes are opened on the movable plate. The plurality of movable holes correspond to the plurality of first heat exchange tubes one by one, and the diameter of the movable hole is larger than the diameter of the first heat exchange tube. The movable plate drives the partition assembly to be straightened and then covers the first heat exchange tube. A liquid adding pipe for adding acidic liquid between the fixed plate and the movable plate is provided on the partition assembly. A plugging assembly for plugging the plurality of movable holes is provided between the movable plate and the fixed plate. A driving assembly for driving the movable plate to slide on the first heat exchange tube is provided on the steam boiler body; The fixed plate includes a fixed part and a rotating part. The fixed part is fixedly installed on the inner wall of the steam boiler body. The rotating part is rotatably connected to the fixed part, and one end of the partition is fixed on the rotating part. A control component is provided on the steam boiler body, and the control component is used to drive the rotating part to rotate in the steam boiler body.

2. A steam generator according to claim 1, characterized in that: The sealing assembly includes a mounting plate slidably connected to the first heat exchange tube and a sealing block arranged on the mounting plate. A plurality of mounting holes are opened on the mounting plate. The number of the mounting holes corresponds to the number of the movable holes one by one, and the diameter of the mounting hole is the same as the diameter of the movable hole. Four sealing blocks are arranged in each mounting hole. The four sealing blocks are slidably connected to the mounting plate. The sealing block includes a sealing portion and a mounting portion. The mounting portion and the sealing portion are vertically arranged, and the mounting portion is slidably connected to the mounting plate. The sealing block is provided with a pushing surface for abutting against the inner wall of the movable hole.

3. A steam generator according to claim 2, characterized in that: A pulling spring for pulling the four blocking blocks away from each other is arranged on the mounting plate, one end of the pulling spring is fixed on the mounting part, and the other end is fixed on the mounting plate.

4. A steam generator according to claim 1, characterized in that: The control assembly comprises a gear ring fixed on the rotating part, a control shaft rotatably connected to the steam boiler body, and a control gear fixed on the control shaft, and the control gear is meshed with the gear ring.

5. A steam generator according to claim 1, characterized in that: A drain pipe is arranged on the steam boiler body, the drain pipe is communicated with the cavity between the fixed plate and the movable plate, and a control valve is arranged on the drain pipe.

6. A steam generator according to claim 4, characterized in that: The driving assembly includes a first driving screw and a second driving screw rotatably connected to the steam boiler body, the diameter of the first driving screw is larger than the diameter of the second driving screw, the movable plate and the first driving screw are threadedly connected, a driving block is fixedly mounted on the mounting plate, the driving block is clamped in the thread groove on the second driving screw, and the mounting plate is slidably connected to the first driving screw, and the movable plate is slidably connected to the second driving screw.

7. A steam generator according to claim 6, characterized in that: A linkage assembly is provided on the steam boiler body; the linkage assembly includes a first linkage gear fixed on the first driving screw, a second linkage gear fixed on the second driving screw, a third linkage gear provided on the control shaft, and a driving gear rotatably connected to the steam boiler body and a driving motor, the output shaft of the driving motor is fixedly connected to the driving gear, the driving gear is meshed with the third linkage gear, the width of the driving gear is greater than the width of the third linkage gear, and an adjusting assembly for driving the third linkage gear to move is provided on the control shaft.

8. A steam generator according to claim 7, characterized in that: The adjusting assembly includes an adjusting sleeve fixed on the third linkage gear, an adjusting rod fixed on the adjusting sleeve and an adjusting cylinder arranged on the steam boiler body. The adjusting rod is slidably connected to the control shaft and is coaxially arranged with the control shaft. A connecting block is arranged on the control shaft, and a connecting groove for plugging in the connecting block is opened on the adjusting sleeve.

Citation Information

Patent Citations

  • A scale removal device for gas boiler maintenance

    CN114322311B

  • Chemical heat exchanger for chemical production

    CN221666703U