CN114251971B - Cleaning device for inner wall of heat exchange tube of heat exchanger - Google Patents

Cleaning device for inner wall of heat exchange tube of heat exchanger Download PDF

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Publication number
CN114251971B
CN114251971B CN202210197191.XA CN202210197191A CN114251971B CN 114251971 B CN114251971 B CN 114251971B CN 202210197191 A CN202210197191 A CN 202210197191A CN 114251971 B CN114251971 B CN 114251971B
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China
Prior art keywords
heat exchange
exchange tube
fixedly connected
wall
tube body
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CN114251971A (en
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徐海亮
李海明
程康
王洁
李炳忠
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Zibo Special Equipment Inspection And Research Institute
Shandong Dongyan Intelligent Technology Co ltd
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Zibo Special Equipment Inspection And Research Institute
Shandong Dongyan Intelligent Technology Co ltd
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Priority to CN202210197191.XA priority Critical patent/CN114251971B/en
Publication of CN114251971A publication Critical patent/CN114251971A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G3/00Rotary appliances
    • F28G3/10Rotary appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00Details
    • F28G15/02Supports for cleaning appliances, e.g. frames
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00Cleaning by flushing or washing, e.g. with chemical solvents

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention discloses a cleaning device for the inner wall of a heat exchange pipe of a heat exchanger, and particularly relates to the technical field of heat exchangers. According to the invention, by arranging the spiral scraper, the water pump assembly, the heat exchange tube body, the connecting shaft, the moving frame, the inclined rod, the supporting wheel and the magnetic control plate, magnetic force between the magnetic control plate and the moving frame drives the moving frame and the supporting wheel to move towards the left side, water flow in the heat exchange tube body moves towards the right relative to the spiral scraper, rotation of the spiral scraper is controlled, scale slightly adhered to the inner wall of the heat exchange tube body is scraped by the rotation of the spiral scraper, and meanwhile, the spiral scraper continuously moves towards the left while rotating, so that comprehensive and efficient cleaning of the inner wall of the heat exchange tube body is realized, and the cleaning effect and the cleaning efficiency of the device on the inner wall of the heat exchange tube body are ensured.

Description

Cleaning device for inner wall of heat exchange tube of heat exchanger
Technical Field
The invention relates to the technical field of heat exchangers, in particular to a device for cleaning the inner wall of a heat exchange tube of a heat exchanger.
Background
The shell-and-tube heat exchanger is also called a shell-and-tube heat exchanger. The dividing wall type heat exchanger is a dividing wall type heat exchanger which takes the wall surface of a tube bundle sealed in a shell as a heat transfer surface. The heat exchanger has simple structure, low cost, wider flow cross section and easy scale cleaning; but has low heat transfer coefficient and large occupied area. Can be made of various structural materials (mainly metal materials), can be used at high temperature and high pressure, and is the most widely applied type.
The shell-and-tube heat exchanger includes fixed tube-plate type steam-water heat exchanger, shell-and-tube type steam-water heat exchanger with expansion joint, floating head type steam-water heat exchanger, U-shaped shell-and-tube type steam-water heat exchanger, wave-joint shell-and-tube type steam-water heat exchanger, sectional type water-water heat exchanger, etc. The main control parameters of the shell-and-tube heat exchanger are heating area, hot water flow, heat exchange quantity, heat medium parameters and the like.
The heat exchanger of the common heat exchanger is a heat exchange system which mostly uses water as a heat carrier, because some salts are separated out from the water when the temperature is raised and the concentration is higher, the salts are attached to the surface of the heat exchange tube to form scale, and a scale deposit layer gradually becomes thicker and harder along with the increase of the using time and frequency, and is tightly attached to the surface of the heat exchange tube.
The increase of incrustation scale can lead to the heat transfer efficiency of heat exchange tube self to reduce, influences holistic heat transfer effect, and the gradual increase of incrustation scale can influence the rivers circulation in the heat exchange tube, probably appears the condition that the heat exchange tube blockked up even, consequently needs regularly to clear up the incrustation scale.
The cleaning means part of heat exchange tube inner wall relies on staff manual control abrasive paper at heat exchange tube inner wall rotational friction, the realization is to the friction clearance of incrustation scale, operation process is difficult to guarantee evenly and comprehensive, and holistic clearance progress is ideal inadequately, and because manual operation cost is higher, probably appear long-time just can carry out once the clearance, and simple abrasive paper is polished the cleaning performance thoroughly inadequately, influence the life and the effect of whole heat exchange tube, consequently need a heat exchanger heat exchange tube inner wall belt cleaning device to solve above-mentioned problem.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a cleaning device for the inner wall of a heat exchange tube of a heat exchanger, and the technical problems to be solved by the invention are as follows: the cleaning means part of heat exchange tube inner wall relies on staff manual control abrasive paper at the heat exchange tube inner wall friction of rotating, realizes the friction clearance to the incrustation scale, and operation process is difficult to guarantee evenly and comprehensive, and holistic clearance progress is ideal enough, and because manual operation cost is higher, probably appear long-time just can carry out a clearance, and simple abrasive paper is polished the clearance effect and is not thorough enough, influences the problem of the life and the effect of whole heat exchange tube.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a heat exchanger heat exchange tube inner wall belt cleaning device, includes bottom plate, electronic slide rail and spiral scraper, the inner wall of electronic slide rail is provided with electronic slider, the lower surface of electronic slider and the top fixed connection of electronic hydraulic stem, the bottom of electronic hydraulic stem and the last fixed surface of magnetic control board are connected, the upper surface of bottom plate and the lower fixed surface of support frame are connected, the upper surface of support frame and the surface overlap joint of heat transfer body, the upper surface of bottom plate and water pump assembly's lower fixed surface are connected, water pump assembly's output is provided with a water injection section of thick bamboo.
The spiral scraper sets up the surface at the connecting axle, the surface of connecting axle is provided with two first connection pads, first connection pad threaded connection is at second connection pad inner wall, two the back of the body of second connection pad is respectively with the relative one end fixed connection of two first pivots, the surface of first pivot is provided with first bearing, the surface of first bearing is provided with removes the frame, the surface that removes the frame is provided with six connecting blocks, adjacent two the opposite face of connecting block is articulated through the surface of round pin axle subassembly with same down tube.
The other end of down tube is provided with the supporting wheel, and the right side the right-hand member of first pivot is provided with the second bearing, be provided with the second pivot in the second bearing, the lower surface of second pivot and the top fixed connection of being connected the rope, the bottom of connecting the rope is connected with the last fixed surface of intermediate lamella, the lower surface of intermediate lamella and the top fixed connection of carriage release lever, the bottom of carriage release lever and the last fixed surface who strikes the piece are connected.
As a further scheme of the invention: the upper surface of bottom plate and the lower fixed surface of riser are connected, the upper surface of riser and the lower fixed surface of three ejector pin are connected, three the lower surface of ejector pin and the upper fixed surface of electronic slide rail are connected.
As a further scheme of the invention: the magnetic control board is arc-shaped, the position of the supporting frame corresponds to that of the magnetic control board, the back of the water pump assembly is communicated with the outer surface of the water storage tank, and the lower surface of the water storage tank is fixedly connected with the upper surface of the bottom plate.
As a further scheme of the invention: the upper surface of the bottom plate is fixedly connected with the lower surface of the containing box, the upper surface of the bottom plate is fixedly connected with the lower surface of the collecting box, and the position of the collecting box corresponds to that of the heat exchange tube body.
As a further scheme of the invention: the upper surface of bottom plate and the lower surface fixed connection who places the board, the upper surface of placing the board and the lower surface overlap joint of supporting wheel, the removal frame sets up to the triangle-shaped.
As a further scheme of the invention: the outer surface of the diagonal rod is fixedly connected with one end of the first elastic component, and the other end of the first elastic component is fixedly connected with the outer surface of the movable frame.
As a further scheme of the invention: the utility model discloses a carriage release mechanism, including carriage release lever, diaphragm, the surface of carriage release lever and the inner wall sliding connection of diaphragm, the surface of diaphragm and the outer fixed surface who removes the frame are connected, the surface of carriage release lever is provided with second elastic component, the top of second elastic component and the lower fixed surface of intermediate lamella are connected, the other end of second elastic component and the upper fixed surface of diaphragm are connected.
As a further scheme of the invention: the shape of the knocking block is hemispherical, the size of the spiral scraper corresponds to the size of the inner diameter of the heat exchange tube body, and the movable frame has magnetism opposite to that of the magnetic control plate.
The invention has the beneficial effects that:
1. according to the invention, by arranging the spiral scraper, the water pump assembly, the heat exchange tube body, the connecting shaft, the moving frame, the inclined rod, the supporting wheel and the magnetic control plate, the inclined rod is directly pressed to rotate close to the moving frame, the supporting wheel is placed in the heat exchange tube body, then the water pump assembly is controlled to work, water in the water storage tank is introduced into the heat exchange tube body by the water pump assembly, the moving frame and the supporting wheel are driven to move to the left side by magnetic force between the magnetic control plate and the moving frame, water flow in the heat exchange tube body moves to the right relative to the spiral scraper, the rotation of the spiral scraper is controlled, the scale slightly adhered to the inner wall of the heat exchange tube body is scraped by the rotation of the spiral scraper, and the spiral scraper continuously moves to the left while rotating, so that the comprehensive and efficient cleaning of the inner wall of the heat exchange tube body is realized, and the cleaning effect and the cleaning efficiency of the inner wall of the heat exchange tube body by the device are ensured;
2. according to the invention, the first rotating shaft, the second bearing, the connecting rope, the second elastic component, the moving rod and the knocking block are arranged, the first rotating shaft pulls the moving rod to move away from the inner wall of the heat exchange tube body through the connecting rope while the first rotating shaft rotates, when the connecting rope is not pulled by the second rotating shaft, the second elastic component drives the moving rod and the knocking block to move close to the heat exchange tube body quickly, at the moment, the knocking block realizes knocking vibration on the inner wall of the heat exchange tube body, and the effect of moving, knocking and descaling is realized on scale on the inner wall of the heat exchange tube body, so that the integral descaling effect is better;
3. according to the invention, by arranging the first elastic component, the inclined rod, the supporting wheel and the moving frame, the space occupied by the moving frame in the heat exchange tube body is smaller, and meanwhile, the first elastic component applies elasticity to the inclined rod and the supporting wheel, so that the supporting wheel is stably contacted with the inner wall of the heat exchange tube body, the moving frame is supported, meanwhile, the supporting frame cannot obstruct excessive water flow, and meanwhile, the device can be placed into heat exchange tube bodies with various pipe diameters for use, so that the device can be used in heat exchange tube bodies with various specifications while being ensured to operate smoothly.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a perspective structural view of the base plate of the present invention;
FIG. 3 is a schematic bottom perspective view of the present invention;
FIG. 4 is a schematic perspective view of the spiral scraper of the present invention;
FIG. 5 is a schematic left-side perspective view of the spiral scraper of the present invention;
FIG. 6 is a schematic diagram of a right-side perspective view of the movable frame according to the present invention;
in the figure: 1. a base plate; 2. a spiral scraper; 3. placing the plate; 4. a vertical plate; 5. a top rod; 6. an electric slide rail; 7. an electric slider; 8. an electro-hydraulic lever; 9. a magnetic control panel; 10. a support frame; 11. a heat exchange tube body; 12. a water injection barrel; 13. a water pump assembly; 14. a water tank; 15. a collection box; 16. a storage box; 17. a connecting shaft; 18. a first splice tray; 19. a second connecting disc; 20. a first rotating shaft; 21. a first bearing; 22. a movable frame; 23. connecting blocks; 24. a pin assembly; 25. a diagonal bar; 26. a support wheel; 27. a first elastic member; 28. a second bearing; 29. a second rotating shaft; 30. connecting ropes; 31. a middle plate; 32. a travel bar; 33. a transverse plate; 34. a second elastic member; 35. and knocking the block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-6, the invention provides a cleaning device for the inner wall of a heat exchange tube of a heat exchanger, which comprises a bottom plate 1, an electric slide rail 6 and a spiral scraper 2, wherein the inner wall of the electric slide rail 6 is provided with an electric slide block 7, the lower surface of the electric slide block 7 is fixedly connected with the top end of an electric hydraulic rod 8, the bottom end of the electric hydraulic rod 8 is fixedly connected with the upper surface of a magnetic control plate 9, by arranging the electric hydraulic rod 8, the electric hydraulic rod 8 can control the distance between the magnetic control plate 9 and the heat exchange tube body 11, according to the size control magnetic control board 9 of heat transfer body 11 self and reciprocate the regulation, the upper surface of bottom plate 1 and the lower fixed surface of support frame 10 are connected, the upper surface of support frame 10 and the outer surface overlap joint of heat transfer body 11, the upper surface of bottom plate 1 and the lower fixed surface of water pump assembly 13 are connected, water pump assembly 13's output is provided with water injection section of thick bamboo 12.
The spiral scraper 2 is arranged on the outer surface of the connecting shaft 17, the spiral scraper 2 can be changed into the rotation action of the spiral scraper 2 when being impacted by water flow by arranging the spiral scraper 2, simultaneously, the scale on the inner wall of the heat exchange pipe body 11 is continuously scraped and cleaned when the spiral scraper 2 rotates, two first connecting discs 18 are arranged on the outer surface of the connecting shaft 17, the first connecting discs 18 and the second connecting discs 19 are arranged, workers can conveniently take off the first connecting discs 18 and the spiral scraper 2 and can replace the spiral scrapers 2 with different sizes according to the size of the heat exchange pipe body 11, the first connecting discs 18 are in threaded connection with the inner wall of the second connecting discs 19, the opposite surfaces of the two second connecting discs 19 are fixedly connected with the opposite ends of the two first rotating shafts 20 respectively, and by arranging the first rotating shafts 20 and the first bearings 21, the first rotating shafts 20 and the first bearings 21 play a role in supporting and limiting for the connecting shaft 17, guarantee smooth stable the rotation of connecting axle 17 and spiral scraper 2, the surface of first pivot 20 is provided with first bearing 21, the surface of first bearing 21 is provided with removes frame 22, the surface of removing frame 22 is provided with six connecting blocks 23, the opposite face of two adjacent connecting blocks 23 is articulated through the surface of round pin axle subassembly 24 with same down tube 25, through setting up round pin axle subassembly 24, round pin axle subassembly 24 realizes the activity setting between down tube 25 and the connecting block 23, make down tube 25 and supporting wheel 26 can be close to or keep away from and remove frame 22 and rotate.
The other end of the diagonal rod 25 is provided with a supporting wheel 26, and by arranging the supporting wheel 26, when the supporting wheel 26 is contacted with the inner wall of the heat exchange tube body 11, the friction is small, which is convenient for the moving frame 22 and the supporting wheel 26 to smoothly slide in the left and right direction on the inner wall of the heat exchange tube body 11, the right end of the first rotating shaft 20 on the right side is provided with the second bearing 28, the second rotating shaft 29 is arranged in the second bearing 28, the lower surface of the second rotating shaft 29 is fixedly connected with the top end of the connecting rope 30, the bottom end of the connecting rope 30 is fixedly connected with the upper surface of the middle plate 31, by arranging the connecting rope 30, the second rotating shaft 29 can keep connection with the moving rod 32 through the connecting rope 30 while moving along with the rotation of the first rotating shaft 20, so that the moving rod 32 can be conveniently pulled through the connecting rope 30, the lower surface of the middle plate 31 is fixedly connected with the top end of the moving rod 32, and the bottom end of the moving rod 32 is fixedly connected with the upper surface of the knocking block 35.
As shown in fig. 1, the upper surface of the bottom plate 1 is fixedly connected with the lower surface of the vertical plate 4, the upper surface of the vertical plate 4 is fixedly connected with the lower surfaces of the three push rods 5, the lower surfaces of the three push rods 5 are fixedly connected with the upper surface of the electric slide rail 6, and by arranging the electric slide rail 6 and the electric slide block 7, the electric slide rail 6 drives the magnetic control plate 9 to move leftwards when working, so that the moving frame 22 and the supporting wheel 26 are conveniently controlled to move.
As shown in fig. 2, magnetic control board 9 sets up to the arc, the position of support frame 10 is corresponding with magnetic control board 9's position, water pump assembly 13's the back is linked together with storage water tank 14's surface, storage water tank 14's lower surface and the last fixed surface of bottom plate 1 are connected, through setting up water pump assembly 13 and storage water tank 14, water pump assembly 13 conveniently lets in the water in storage water tank 14 inside heat transfer body 11, the water that flows can strike spiral scraper 2 and rotate, can drive the incrustation scale of scraping simultaneously and flow out to the right.
As shown in fig. 3, the upper surface of the bottom plate 1 is fixedly connected with the lower surface of the storage box 16, the upper surface of the bottom plate 1 is fixedly connected with the lower surface of the collection box 15, by arranging the storage box 16, the storage box 16 facilitates workers to place common tools and personal articles into the storage box 16, the position of the collection box 15 corresponds to the position of the heat exchange tube body 11, and by arranging the collection box 15, the collection box 15 is used for collecting and storing water and water scale flowing out of the heat exchange tube body 11, so that subsequent cleaning and transferring are facilitated.
As shown in fig. 2 and 4, the upper surface of the base plate 1 is fixedly connected to the lower surface of the placement plate 3, the upper surface of the placement plate 3 is overlapped with the lower surface of the support wheel 26, and the moving frame 22 is formed in a triangular shape.
As shown in fig. 6, the outer surface of the diagonal rod 25 is fixedly connected to one end of the first elastic component 27, by providing the first elastic component 27, the first elastic component 27 applies elasticity to the diagonal rod 25 and the supporting wheels 26, so as to ensure that the three supporting wheels 26 on the right side smoothly keep contacting with the inner wall of the heat exchange tube 11, and simultaneously, the distance between the three supporting wheels 26 on the right side is variable, so that the movable frame 22 and the supporting wheels 26 can be conveniently placed into the heat exchange tube 11 with different specifications, and the other end of the first elastic component 27 is fixedly connected to the outer surface of the movable frame 22.
As shown in fig. 5 and 6, the outer surface of the moving rod 32 is slidably connected to the inner wall of the transverse plate 33, the outer surface of the transverse plate 33 is fixedly connected to the outer surface of the moving frame 22, by the arrangement of the transverse plate 33, the transverse plate 33 has a limiting effect on the moving process of the moving rod 32, the moving rod 32 and the knocking block 35 are guaranteed to move quickly and stably, the second elastic component 34 is arranged on the outer surface of the moving rod 32, the top end of the second elastic component 34 is fixedly connected to the lower surface of the intermediate plate 31, by the arrangement of the second elastic component 34, when the second rotating shaft 29 does not cause pulling on the connecting rope 30, the second elastic component 34 drives the moving rod 32 and the knocking block 35 to move by means of self elasticity, the knocking block 35 is knocked on the inner wall of the heat exchange tube body 11, and the other end of the second elastic component 34 is fixedly connected to the upper surface of the transverse plate 33.
As shown in fig. 2 and 6, the shape of the knocking block 35 is hemispherical, the knocking block 35 is hemispherical through setting, when the knocking block 35 knocks on the inner wall of the heat exchange tube 11, the damage to the inner wall of the heat exchange tube 11 caused by the knocking process is reduced in a hemispherical manner, the size of the spiral scraper 2 corresponds to the size of the inner diameter of the heat exchange tube 11, the movable frame 22 has magnetism opposite to that of the magnetic control plate 9, the movable frame 22 and the magnetic control plate 9 are arranged, opposite magnetism is provided between the two, the movable frame 22 can be controlled to move through magnetic force when the magnetic control plate 9 moves, and the movable frame 22 and the supporting wheel 26 can be conveniently moved inside the heat exchange tube 11 through subsequent control.
The working principle of the invention is as follows: when the device is needed to clean the inner wall of the heat exchange tube body 11, the heat exchange tube body 11 is directly placed on the surface of the support frame 10, the inclined rod 25 is pressed to move close to the moving frame 22, the moving frame 22 and the support wheel 26 are placed on the inner wall of the heat exchange tube body 11, meanwhile, the first elastic component 27 applies elasticity to the inclined rod 25 and the support wheel 26, so that the support wheel 26 is stably and tightly contacted with the inner wall of the heat exchange tube body 11, then the electric hydraulic rod 8 is controlled to drive the magnetic control plate 9 to move downwards, after the magnetic control plate 9 moves to a proper position, the electric hydraulic rod 8 is controlled to stop working, then the water injection cylinder 12 is installed at the left end of the heat exchange tube body 11, then the water pump component 13 and the electric slide rail 6 are controlled to work, at the moment, the water pump component 13 leads the water in the water storage tank 14 to the heat exchange tube body 11 rightwards, at the same time, the electric slide rail 6 drives the electric slide block 7 to move leftwards, at the moment, the magnetic force between the magnetic control plate 9 and the moving frame 22 drives the moving frame 22 to move leftwards, simultaneously rivers strike on 2 surfaces of spiral scraper, spiral scraper 2 pivoted are cleared up heat exchange tube body 11 inner walls simultaneously, connect rope 30 and strike piece 35 through 29 pulling of second pivot and keep away from heat exchange tube body 11 inner wall removal simultaneously in the pivoted of first pivot 20, when second connecting axle 17 does not pull connecting rope 30, second elastic component 34 drives movable rod 32 and strikes piece 35 and strikes at heat exchange tube body 11 inner walls fast, realize the clearance of striking to 11 inner walls of heat exchange tube body, after 11 inner walls of heat exchange tube bodies clear up, control water pump subassembly 13 and 6 stop work of electric slide rail, after taking off water injection section of thick bamboo 12 afterwards, it can to take off movable frame 22 from 11 left sides of heat exchange tube body.
In summary, the present invention:
the invention directly presses the inclined rod 25 to rotate close to the movable frame 22 by arranging the spiral scraper 2, the water pump assembly 13, the heat exchange tube body 11, the connecting shaft 17, the movable frame 22, the inclined rod 25, the supporting wheel 26 and the magnetic control plate 9, meanwhile, the supporting wheel 26 is put into the heat exchange tube body 11, then the water pump assembly 13 is controlled to work, the water pump assembly 13 leads the water in the water storage tank 14 into the heat exchange tube body 11, the magnetic force between the magnetic control plate 9 and the moving frame 22 drives the moving frame 22 and the supporting wheels 26 to move to the left, meanwhile, the water flow in the heat exchange tube body 11 moves rightwards relative to the spiral scraper 2 to control the rotation of the spiral scraper 2, the spiral scraper 2 rotates to scrape the scale slightly adhered to the inner wall of the heat exchange tube body 11, spiral scraper 2 constantly removes left in the pivoted simultaneously, realizes the comprehensive efficient clearance to 11 inner walls of heat transfer body, guarantees this device to the clearance effect and the clearance efficiency of 11 inner walls of heat transfer body.
According to the invention, the first rotating shaft 20, the second rotating shaft 29, the second bearing 28, the connecting rope 30, the second elastic component 34, the moving rod 32 and the knocking block 35 are arranged, when the first rotating shaft 20 rotates, the first rotating shaft 20 pulls the moving rod 32 to move away from the inner wall of the heat exchange tube body 11 through the connecting rope 30, when the connecting rope 30 is not pulled by the second rotating shaft 29, the second elastic component 34 drives the moving rod 32 and the knocking block 35 to move close to the heat exchange tube body 11 quickly, at the moment, the knocking block 35 realizes knocking vibration on the inner wall of the heat exchange tube body 11, and the effect of moving, knocking and descaling on the scale on the inner wall of the heat exchange tube body 11 is achieved, so that the integral descaling effect is better.
According to the invention, by arranging the first elastic component 27, the inclined rod 25, the supporting wheel 26 and the moving frame 22, the space occupied by the moving frame 22 in the heat exchange tube body 11 is smaller, meanwhile, the first elastic component 27 applies elasticity to the inclined rod 25 and the supporting wheel 26, so that the supporting wheel 26 is stably contacted with the inner wall of the heat exchange tube body 11, the moving frame 22 is supported, meanwhile, the support frame 10 cannot obstruct excessive water flow, and meanwhile, the device can be placed into the heat exchange tube body 11 with various pipe diameters for use, so that the device can be applied to the heat exchange tube bodies 11 with various specifications while being ensured to operate and use smoothly.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims (5)

1. The utility model provides a heat exchanger heat exchange tube inner wall belt cleaning device, includes bottom plate (1), electronic slide rail (6) and spiral scraper (2), its characterized in that: an electric slider (7) is arranged on the inner wall of the electric sliding rail (6), the lower surface of the electric slider (7) is fixedly connected with the top end of an electric hydraulic rod (8), the bottom end of the electric hydraulic rod (8) is fixedly connected with the upper surface of a magnetic control plate (9), the upper surface of the bottom plate (1) is fixedly connected with the lower surface of a support frame (10), the upper surface of the support frame (10) is overlapped with the outer surface of a heat exchange tube body (11), the upper surface of the bottom plate (1) is fixedly connected with the lower surface of a water pump assembly (13), and the output end of the water pump assembly (13) is provided with a water injection barrel (12);
the spiral scraper (2) is arranged on the outer surface of the connecting shaft (17), two first connecting discs (18) are arranged on the outer surface of the connecting shaft (17), the first connecting discs (18) are in threaded connection with the inner wall of each second connecting disc (19), the opposite surfaces of the two second connecting discs (19) are fixedly connected with the opposite ends of the two first rotating shafts (20), first bearings (21) are arranged on the outer surfaces of the first rotating shafts (20), a moving frame (22) is arranged on the outer surface of each first bearing (21), six connecting blocks (23) are arranged on the outer surface of the moving frame (22), and the opposite surfaces of every two adjacent connecting blocks (23) are hinged to the outer surface of the same inclined rod (25) through pin shaft assemblies (24);
the other end of the diagonal rod (25) is provided with a supporting wheel (26), the right side of the first rotating shaft (20) is provided with a second bearing (28), a second rotating shaft (29) is arranged in the second bearing (28), the lower surface of the second rotating shaft (29) is fixedly connected with the top end of a connecting rope (30), the bottom end of the connecting rope (30) is fixedly connected with the upper surface of an intermediate plate (31), the lower surface of the intermediate plate (31) is fixedly connected with the top end of a moving rod (32), the bottom end of the moving rod (32) is fixedly connected with the upper surface of a knocking block (35), the magnetic control plate (9) is arc-shaped, the position of the supporting frame (10) corresponds to the position of the magnetic control plate (9), the back of the water pump assembly (13) is communicated with the outer surface of the water storage tank (14), the lower surface of the water storage tank (14) is fixedly connected with the upper surface of the bottom plate (1), the utility model discloses a heat exchanger, including heat exchange tube body (11), removal frame (22), the inner wall sliding connection of the surface of removal pole (32) and diaphragm (33), the surface of diaphragm (33) and the outer fixed surface of removal frame (22) are connected, the surface of removal pole (32) is provided with second elastic component (34), the top of second elastic component (34) and the lower fixed surface of intermediate lamella (31) are connected, the other end of second elastic component (34) and the upper fixed surface of diaphragm (33) are connected, the shape of beating piece (35) sets up to hemispherical, the size of spiral scraper (2) is corresponding with the size of heat exchange tube body (11) internal diameter, removal frame (22) have the magnetism opposite with magnetic control board (9).
2. The device for cleaning the inner wall of the heat exchange tube of the heat exchanger as claimed in claim 1, wherein: the upper surface of bottom plate (1) and the lower fixed surface of riser (4) are connected, the upper surface of riser (4) and the lower fixed surface of three ejector pin (5) are connected, three the lower surface of ejector pin (5) and the upper fixed surface of electronic slide rail (6) are connected.
3. The device for cleaning the inner wall of the heat exchange tube of the heat exchanger as claimed in claim 1, wherein: the upper surface of the bottom plate (1) is fixedly connected with the lower surface of the containing box (16), the upper surface of the bottom plate (1) is fixedly connected with the lower surface of the collecting box (15), and the position of the collecting box (15) corresponds to the position of the heat exchange tube body (11).
4. The device for cleaning the inner wall of the heat exchange tube of the heat exchanger as claimed in claim 1, wherein: the upper surface of the bottom plate (1) is fixedly connected with the lower surface of the placing plate (3), the upper surface of the placing plate (3) is in lap joint with the lower surface of the supporting wheel (26), and the moving frame (22) is triangular.
5. The device for cleaning the inner wall of the heat exchange tube of the heat exchanger as claimed in claim 1, wherein: the outer surface of the inclined rod (25) is fixedly connected with one end of a first elastic component (27), and the other end of the first elastic component (27) is fixedly connected with the outer surface of the moving frame (22).
CN202210197191.XA 2022-03-02 2022-03-02 Cleaning device for inner wall of heat exchange tube of heat exchanger Active CN114251971B (en)

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CN115752080B (en) * 2022-12-07 2023-09-05 无锡翔龙环球科技股份有限公司 Self-cleaning mechanism of heat exchange tube on waste heat boiler

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WO2008080262A1 (en) * 2006-12-31 2008-07-10 Beijing University Of Chemical Technology A self-cleaning enhanced heat transfer device inside a tube
CN102901400A (en) * 2011-07-27 2013-01-30 俞天翔 Hydrodynamic-rotating plastic whirl scraper wheel cleaning mechanism
CN205909735U (en) * 2016-03-30 2017-01-25 博广热能股份有限公司 Heat exchange tube inner wall cleaning device
CN106958946A (en) * 2017-04-25 2017-07-18 高奎平 A kind of Instant heating type boiler apparatus for eliminating sludge and descaling method
CN210961491U (en) * 2019-10-31 2020-07-10 德之源电器制造(深圳)有限公司 Electric kettle with descaling and heat preservation functions

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008080262A1 (en) * 2006-12-31 2008-07-10 Beijing University Of Chemical Technology A self-cleaning enhanced heat transfer device inside a tube
CN102901400A (en) * 2011-07-27 2013-01-30 俞天翔 Hydrodynamic-rotating plastic whirl scraper wheel cleaning mechanism
CN205909735U (en) * 2016-03-30 2017-01-25 博广热能股份有限公司 Heat exchange tube inner wall cleaning device
CN106958946A (en) * 2017-04-25 2017-07-18 高奎平 A kind of Instant heating type boiler apparatus for eliminating sludge and descaling method
CN210961491U (en) * 2019-10-31 2020-07-10 德之源电器制造(深圳)有限公司 Electric kettle with descaling and heat preservation functions

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