CN115752080B - Self-cleaning mechanism of heat exchange tube on waste heat boiler - Google Patents
Self-cleaning mechanism of heat exchange tube on waste heat boiler Download PDFInfo
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- CN115752080B CN115752080B CN202211563531.2A CN202211563531A CN115752080B CN 115752080 B CN115752080 B CN 115752080B CN 202211563531 A CN202211563531 A CN 202211563531A CN 115752080 B CN115752080 B CN 115752080B
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Abstract
The application relates to a heat exchange tube technology, which is used for solving the problems that the inner part of a heat exchange tube is not cleaned for a long time and is easy to be blocked, and blockage at other positions is easy to be caused in the circulation process along with water flow when the cleaned blockage is cleaned, in particular to a self-cleaning mechanism of a heat exchange tube on a waste heat boiler, comprising a heat exchange tube body; according to the application, the inner scraper is driven to clean attachments on the straight part of the heat exchange tube body in the rotation process of the rotary connecting tube, the shaftless auger can be driven to rotate in the rotation process of the inner scraper to clean attachments on the bent part of the heat exchange tube body, so that the inside of the heat exchange tube body cannot be blocked due to the increase of scale, water flow in the ash storage box flows back into the inside of the heat exchange tube body under the action of the telescopic hose, the impurity amount of attachments in the return water flow is reduced, the impurity amount which can cause blocking at a narrow position in the transmission process is reduced, and the possibility of blocking is reduced.
Description
Technical Field
The application relates to a heat exchange tube technology, in particular to a self-cleaning mechanism of a heat exchange tube on a waste heat boiler.
Background
The heat exchange tube is one of the elements of the heat exchanger, is arranged in the cylinder body and used for exchanging heat between two media, has high heat conductivity and good isothermicity, is a device capable of rapidly transferring heat energy from one point to another point, has little heat loss, and is called a heat transfer superconductor, and the heat conductivity coefficient of the heat exchange tube is thousands of times of that of copper;
in the prior art, when the waste heat recovery operation is performed on the waste heat boiler, the temperature of water flowing through the heat exchange tube body is increased, so that scale in the water flow can be quickly precipitated and condensed on the inner wall of the heat exchange tube body, the scale condensed on the inner wall is increased gradually in the long-time use process of the heat exchange tube body, the inside of the heat exchange tube body is blocked, and the waste heat recovery operation is adversely affected; after the cleaning structure in the heat exchange tube body cleans attachments attached to the inner wall of the heat exchange tube body, the cleaned attachments move along with the flow of water flow, so that the attachments cleaned at all positions in the heat exchange tube body can be clamped at the narrower positions in the transmission process under the transportation of the water flow, the heat exchange transmission in the heat exchange tube body is blocked, and the narrower positions are inconvenient to clean;
the application provides a solution to the technical problem.
Disclosure of Invention
The application aims to clean attachments on a straight part of a heat exchange tube body by driving an inner scraper in the rotation process of a rotary connecting tube, and can drive a shaftless auger to rotate in the rotation process of the inner scraper so as to clean attachments on a bent part of the heat exchange tube body, so that the inside of the heat exchange tube body cannot be blocked due to the increase of scale, water flow in an ash storage box flows back into the inside of the heat exchange tube body under the action of a telescopic hose, the impurity amount of the attachments in the flowing water is reduced, the impurity amount which can cause blocking at a narrow position in the transmission process is reduced, the possibility of blocking is reduced, the problems that the inside of the heat exchange tube is not cleaned for a long time and the blocking objects in the cleaning process are easy to cause blocking at other positions in the circulation process of the water flow are solved, and a self-cleaning mechanism of the heat exchange tube on a waste heat boiler is provided.
The aim of the application can be achieved by the following technical scheme:
the utility model provides a self-cleaning mechanism of heat exchange tube on exhaust-heat boiler, includes the heat exchange tube body, the connecting plate is installed to heat exchange tube body lateral wall both sides, heat exchange tube body lateral wall both sides are close to connecting plate position department all installs the rotation connecting pipe, upper and lower two adjacent the rotation connecting pipe passes through the drive belt transmission and connects, rotation connecting pipe lateral wall one side integrated into one piece has first drive runner, it is close to rotate the connecting pipe lateral wall first drive runner position department installs the connection runner, rotate connecting pipe inside wall intermediate position department and install interior scraper, correspond in the four directions of heat exchange tube body lateral wall rotation connecting pipe position department all is connected with connecting frame, the heat exchange tube body inboard corresponds the one end of interior scraper is installed shaftless auger through the collar, the heat exchange tube body inside wall corresponds collar position department and installs the installation annular, a plurality of evenly distributed's intercommunicating pore has been seted up to the rotation connecting pipe lateral wall corresponds interior scraper both sides install the expansion box, interior scraper upper surface corresponds expansion box position department installs the expansion box, interior expansion bracket position corresponds four in the expansion bracket position department has the integrative shaping spring of four inside walls.
As a preferred implementation mode of the application, a plurality of evenly-distributed driving tooth grooves are formed in the outer side wall of the connecting rotating wheel, a connecting rotating shaft is rotatably connected to the outer side wall of the connecting frame, a first driving gear is arranged at one end of the connecting rotating shaft corresponding to the driving tooth grooves, a first transmission gear is arranged at one end of the connecting rotating shaft far away from the driving tooth grooves, a sliding groove is arranged at the position, close to the first transmission gear, of the outer side wall of the heat exchange tube body, a rotating toothed ring is slidably connected to the inner side of the sliding groove, a connecting ring plate is integrally formed on one side of the outer side wall of the rotating toothed ring, and an outer scraper is arranged on one side of the outer side wall of the connecting ring plate.
As a preferred implementation mode of the application, a second driving gear is arranged on one side of the outer side wall of the rotary connecting pipe close to the first driving gear, a mounting groove is formed in the upper surface of the connecting plate and corresponds to the position of the second driving gear, a second driving gear is rotatably connected to the lower surface of the inside of the mounting groove and corresponds to the position of the second driving gear, a fourth driving gear is arranged on the upper surface of the second driving gear, a three-way connecting pipe is sleeved on the outer side wall of the heat exchange pipe body, and the upper surface of the three-way connecting pipe is rotatably connected with the second driving gear through a rotating shaft.
As a preferred implementation mode of the application, one end of the three-way connecting pipe, which is far away from the heat exchange pipe body, is connected with a conducting pipe, the outer side wall of the conducting pipe is connected with a bellows, the upper surface of the bellows is rotationally connected with a transmission rotating gear through a rotating shaft, the position of the upper surface of the bellows corresponding to the transmission rotating gear is rotationally connected with a steering gear through a connecting frame, one side of the outer side wall of the steering gear is provided with a third transmission rotating wheel, and one side of the outer side wall of the connecting frame is rotationally connected with a transmission rotating shaft corresponding to the position of the steering gear.
As a preferred implementation mode of the application, one end of the transmission rotating shaft far away from the third transmission rotating wheel is connected with a rotating disc, both sides of the outer side wall of the rotating disc are connected with trigger switches, the outer side of the outer side wall of the rotating disc is rotationally connected with a connecting rod, the lower end of the connecting rod is rotationally connected with an adjusting rod, an anti-deviation block is arranged below the outer side wall of the adjusting rod, the lower end of the transmission pipe is connected with an ash storage box, and the upper surface of the ash storage box is connected with a supporting frame corresponding to the position of the transmission rotating shaft.
As a preferred implementation mode of the application, a guide block is integrally formed on one side of the inner side wall of the ash storage box, a fixed pressing plate is connected on the inner side of the ash storage box corresponding to the lower end of the adjusting rod, limiting rods are connected on two sides of the upper surface of the fixed pressing plate, a movable pressing plate is connected on two sides of the outer side wall of the fixed pressing plate in a rotating manner through a hinge, a connecting spring is connected on the upper surface of the movable pressing plate, and a protective sleeve is sleeved on the upper surface of the movable pressing plate corresponding to the position of the connecting spring.
As a preferred implementation mode of the application, a cavity is formed in the middle position of the inside of the anti-deflection block, an extrusion plate is connected in the cavity corresponding to the lower end of the adjusting rod, a pressure sensor is connected to the lower surface of the inside of the cavity, and holes are formed in the two sides of the upper surface of the anti-deflection block corresponding to the positions of the adjusting rod and the limiting rod.
Compared with the prior art, the application has the beneficial effects that:
1. the inner scraper is driven to clean attachments on the straight part of the heat exchange tube body in the rotation process of the rotating connecting tube, the shaftless auger can be driven to rotate in the rotation process of the inner scraper to clean attachments on the bent part of the heat exchange tube body, so that the inside of the heat exchange tube body cannot be blocked due to the increase of scale, the rotating connecting tube can drive the outer scraper to clean the outer part of the heat exchange tube body, and the attachments are prevented from adhering to the outer side of the heat exchange tube body to influence heat conduction;
2. the water flow in the heat exchange tube body is conducted to the inside of the ash storage box from the position of the conduction tube through the fan, the rotary table rotates under the drive of the transmission rotating shaft, the rotary table moves up and down in the position inside the ash storage box through the connecting rod traction adjusting rod in the rotating process, the rotary table sequentially triggers the opening and closing trigger switch on the rotary table in the rotating process, the movable pressing plate is enabled to be horizontal with the fixed pressing plate when being pressed down, the water flow in the ash storage box freely sags when rising, the water flow in the ash storage box flows back to the inside of the heat exchange tube body under the action of the telescopic hose, the impurity amount of the attached matter in the backflow water flow is reduced, the impurity amount which can cause blockage at the narrow position in the transmitting process is reduced, and the possibility of blockage can be reduced.
Drawings
The present application is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a main block diagram of the present application;
FIG. 2 is an enlarged view of the portion A of FIG. 1 according to the present application;
FIG. 3 is a block diagram of a shaftless auger of the present application;
FIG. 4 is a diagram of the structure of the connection frame of the present application;
FIG. 5 is a block diagram of a connecting runner of the present application;
FIG. 6 is a block diagram of an inner doctor blade of the application;
FIG. 7 is a diagram of the structure of a turntable according to the present application;
FIG. 8 is an enlarged view of the portion B of FIG. 7 according to the present application;
FIG. 9 is a diagram of the internal structure of a cavity according to the present application;
in the figure: 1. a heat exchange tube body; 2. a connecting plate; 31. a transmission belt; 32. a first drive pulley; 33. a shaftless auger; 34. a communication hole; 35. a connection frame; 36. rotating the connecting pipe; 37. the connecting rotating shaft; 38. an inner scraper; 39. an outer scraper; 310. a cushion block; 311. rotating the toothed ring; 312. connecting the annular plates; 313. the rotating wheel is connected; 314. a sliding groove; 315. a first transmission gear; 316. a first drive gear; 317. driving the tooth slot; 318. a telescoping frame; 319. a telescopic case; 41. a three-way connecting pipe; 42. a second drive pulley; 43. a mounting groove; 44. a fourth drive pulley; 45. a second transmission gear; 46. a second drive gear; 47. a transmission rotating shaft; 48. triggering a switch; 49. a turntable; 410. an adjusting rod; 411. a limit rod; 412. an anti-deviation block; 413. an ash storage box; 414. a movable pressing plate; 415. a fixed pressing plate; 416. a connecting spring; 417. a guide block; 418. a conductive pipe; 419. a wind box; 420. a transmission rotating gear; 421. a steering gear; 422. a third drive pulley; 423. a connecting rod; 424. a support frame; 425. an extrusion plate; 426. a pressure sensor; 427. a cavity.
Detailed Description
The technical solutions of the present application will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1:
referring to fig. 1-6, a self-cleaning mechanism of a heat exchange tube on a waste heat boiler comprises a heat exchange tube body 1, connecting plates 2 are arranged on two sides of the outer side wall of the heat exchange tube body 1, rotary connecting pipes 36 are arranged on two sides of the outer side wall of the heat exchange tube body 1 and close to the positions of the connecting plates 2, an outer toothed ring is further connected to the outer side of each rotary connecting pipe 36, a micro motor is arranged on the upper surface of each connecting plate 2, an output gear is connected to the output end of each micro motor, the output gear is mutually embedded with the outer toothed ring and drives the rotary connecting pipes 36 to rotate under the drive of the micro motor, an upper adjacent rotary connecting pipe 36 and a lower adjacent rotary connecting pipe 36 are in transmission connection through a transmission belt 31 on a connecting rotating wheel 313, a first transmission rotating wheel 32 is integrally formed on one side of the outer side wall of each rotary connecting pipe 36, the left adjacent rotary connecting pipe 36 and the right adjacent rotary connecting pipes are in transmission connection through the transmission belt 31 on the first transmission rotating wheel 32, the connecting wheel 313 is arranged on the outer side wall of the rotating connecting pipe 36 near the position of the first transmission rotating wheel 32, the inner scraper 38 is arranged on the middle position of the inner side wall of the rotating connecting pipe 36, the inner scraper 38 rotates along with the rotation of the rotating connecting pipe 36 and cleans the inner wall of the heat exchange pipe body 1 in the rotating process, the connecting frames 35 are connected on the positions of the outer side wall of the heat exchange pipe body 1 corresponding to the rotating connecting pipe 36 in four directions, the shaftless auger 33 is arranged on one end of the inner side of the heat exchange pipe body 1 corresponding to the inner scraper 38 through the mounting ring, a plurality of communicating holes 34 which are uniformly distributed are arranged on the outer side wall of the shaftless auger 33, the shaftless auger 33 rotates under the driving of the mounting ring, the mounting ring rotates through the driving of the inner scraper 38, the mounting ring is provided with the mounting ring groove corresponding to the position of the inner side wall of the heat exchange pipe body 1, the telescopic boxes 319 are arranged on the inner side wall of the rotary connecting pipe 36 corresponding to the two sides of the inner scraper 38, the telescopic frames 318 are arranged on the upper surface of the inner scraper 38 corresponding to the positions of the telescopic boxes 319, the reset springs are arranged in the telescopic boxes 319 corresponding to the positions of the telescopic frames 318, the telescopic frames 318 drive the inner scraper 38 to move up and down under the action of the reset springs, when the inner scraper 38 moves to the position of the cushion block 310 on the inner wall of the heat exchange tube body 1, the cushion block 310 slides along the inclined surface of the cushion block 310, cushion blocks 310 are integrally formed in four directions of the inner side wall of the heat exchange tube body 1, the cushion block 310 is in a right-angle triangle shape, a plurality of evenly distributed driving tooth sockets 317 are arranged on the outer side wall of the connecting rotating wheel 313, the outer side wall of the connecting frame 35 is rotationally connected with the connecting rotating shaft 37, a first driving gear 316 is arranged at one end of the connecting rotating shaft 37 corresponding to the driving tooth groove 317, the first driving gear 316 is driven to rotate by the driving tooth groove 317 in the rotating process of the rotating connecting pipe 36, a first transmission gear 315 is arranged at one end of the connecting rotating shaft 37 far away from the driving tooth groove 317, a sliding groove 314 is arranged at the position, close to the first transmission gear 315, of the outer side wall of the heat exchange pipe body 1, a rotating toothed ring 311 is slidingly connected to the inner side of the sliding groove 314, the first transmission gear 315 drives the rotating toothed ring 311 to rotate in the rotating process of the connecting rotating shaft 37, so that the outer scraper 39 on the connecting annular plate 312 integrally formed with the rotating toothed ring 311 scrapes dirt on the outer side of the heat exchange pipe body 1, a connecting annular plate 312 is integrally formed at one side of the outer side wall of the connecting annular plate 312, and the outer scraper 39 is arranged at one side of the outer side wall of the connecting annular plate 312;
in the prior art, when the waste heat recovery operation is performed on the waste heat boiler, the temperature of water flowing through the heat exchange tube body 1 is increased, so that scale in the water flow can be quickly precipitated and condensed on the inner wall of the heat exchange tube body 1, the scale condensed on the inner wall is increased gradually in the long-time use process of the heat exchange tube body 1, the inside of the heat exchange tube body 1 is blocked, and the waste heat recovery operation is adversely affected;
the micro motor on the connecting plate 2 at two sides drives the rotary connecting pipe 36 to rotate through the output gear on the output end, so that the inner scraper 38 arranged at the inner side of the rotary connecting pipe 36 at two sides of the straight part of the heat exchange tube body 1 can clear scale on the inner wall of the heat exchange tube body 1 in the rotating process, the inner scraper 38 is blocked by the cushion block 310 in the process of scraping the attachments on the inner side wall of the heat exchange tube body 1, the inner scraper 38 can slide upwards along the inclined surface of the cushion block 310 under the pushing of the rotating acting force, the reset spring connected with the telescopic frame 318 is stretched in the sliding process, the stretched reset spring drives the inner scraper 38 to reset after the inner scraper 38 slides from the cushion block 310, the cushion plate arranged at the inner side of the telescopic box 319 can limit the displacement of the telescopic frame 318 after rebound, the inner scraper 38 is prevented from being rapidly rebounded under the action of the reset spring and not being limited to damage the inner wall of the heat exchange tube body 1, the inner scraper 38 can shake under the action of the cushion block 310 and the reset spring when scraping work is carried out, the scraped objects attached to the scraper body can fall down, the scraping work of the inner scraper 38 is not affected, the rotating connecting tube 36 can drive the first driving gear 316 on one end of the connecting rotating shaft 37 to rotate through the driving tooth groove 317 in the rotating process, the first driving gear 315 connected on the other end of the connecting rotating shaft 37 can drive the rotating toothed ring 311 in the sliding groove 314 to rotate in the rotating process, the outer scraper 39 connected on the connecting ring plate 312 can be driven to clean the attachments outside the heat exchange tube body 1 in the rotating process of the rotating toothed ring 311, the attachments are prevented from affecting the heat exchange efficiency of the heat exchange tube body 1, the shaftless auger 33 that is equipped with in the bight portion inside of heat exchange tube body 1 scrapes down the incrustation scale on the bight inner wall at the rotation in-process, and the inside rivers of heat exchange tube body 1 can circulate from the intercommunicating pore 34 position department on the shaftless auger 33, and the both sides of the straight portion of heat exchange tube body 1 all are equipped with rotation connecting pipe 36, and the rotation connecting pipe 36 of both sides rotate in step, make the inside scraper 38 of heat exchange tube body 1 and the outer scraper 39 both ends in the heat exchange tube body 1 outside be connected with rotation connecting pipe 36 and the go-between 312 of heat exchange tube body 1 both sides respectively.
Example 2:
referring to fig. 1-2 and 7-9, a second driving gear 46 is installed on the outer side wall of the rotating connection pipe 36 near the first driving wheel 32, a mounting groove 43 is formed on the upper surface of the connection pipe 2 corresponding to the position of the second driving gear 46, a second driving gear 45 is rotatably connected to the lower surface of the mounting groove 43 corresponding to the position of the second driving gear 46, the second driving gear 46 and the second driving gear 45 are mutually perpendicular and mutually embedded and mutually driven to rotate, a fourth driving wheel 44 is installed on the upper surface of the second driving gear 45, a three-way connection pipe 41 is sleeved on the outer side wall of the heat exchange pipe body 1, the upper surface of the three-way connection pipe 41 is rotatably connected with the second driving wheel 42 through a rotating shaft, the second driving wheel 42 is in transmission connection with the fourth driving wheel 44 on the inner side of the mounting groove 43 through a driving belt 31, one end of the three-way connection pipe 41 far from the heat exchange pipe body 1 is connected with a transmission pipe 418, the position of the conducting tube 418 corresponding to the three-way connecting tube 41 is provided with a switch valve, the outer side wall of the conducting tube 418 is connected with a wind box 419, the upper surface of the wind box 419 is rotationally connected with a transmission turning gear 420 through a rotating shaft, the position of the upper surface of the wind box 419 corresponding to the transmission turning gear 420 is rotationally connected with a turning gear 421 through a connecting frame, the transmission turning gear 420 and the turning gear 421 are mutually perpendicular and mutually embedded and mutually driven to rotate, one side of the outer side wall of the turning gear 421 is provided with a third transmission turning wheel 422, the third transmission turning wheel 422 drives a fan rotating shaft in the wind box 419 to rotate through a driving belt 31, so that the fan in the wind box 419 can guide water in the heat exchange tube body 1 to the position of the conducting tube 418, one side of the outer side wall of the connecting frame is rotationally connected with a transmission rotating shaft 47 corresponding to the position of the turning gear 421, one end of the transmission rotating shaft 47 far away from the third transmission rotating wheel 422 is connected with a rotating disc 49, the rotating disc 49 is driven to rotate in the rotating process of the transmission rotating shaft 47, both sides of the outer side wall of the rotating disc 49 are connected with trigger switches 48, one of the trigger switches 48 on the upper side and the lower side of the rotating disc 49 can start power supply to the connecting spring 416, the other one can close power supply to the connecting spring 416, the outer side wall of the rotating disc 49 is rotationally connected with a connecting rod 423, the rotating disc 49 pulls an adjusting rod 410 to move up and down in the ash storage tank 413 through the connecting rod 423 in the rotating process of the rotating disc 49, the lower end of the connecting rod 423 is rotationally connected with an adjusting rod 410, an anti-deflection block 412 is arranged below the outer side wall of the adjusting rod 410, the lower end of the transmitting tube 418 is connected with an ash storage tank 413, the upper surface of the ash storage tank 413 is connected with a supporting frame 424 corresponding to the position of the transmission rotating shaft 47, one side of the inner side wall of the ash storage tank 413 is integrally formed with a guide block 417, the lower end of the corresponding adjusting rod 410 on the inner side of the ash storage tank 413 is connected with a fixed pressing plate 415, two sides of the upper surface of the fixed pressing plate 415 are connected with limiting rods 411, two sides of the outer side wall of the fixed pressing plate 415 are rotatably connected with a movable pressing plate 414 through hinges, a hole is formed in the middle position of the movable pressing plate 414 and the fixed pressing plate 415, a filter screen is installed in the hole, the upper surface of the movable pressing plate 414 is connected with a connecting spring 416, the connecting spring 416 is connected with external power supply equipment under the control of boiler control equipment, a protecting sleeve is sleeved on the upper surface of the movable pressing plate 414 corresponding to the position of the connecting spring 416, a cavity 427 is formed in the middle position inside the anti-deviation block 412, a pressing plate 425 is connected to the lower end of the corresponding adjusting rod 410 inside the cavity 427, a pressure sensor 426 is connected to the lower surface inside the cavity 427, the pressure sensor 426 can detect the pressure of the pressing plate 425 to the pressure sensor 426, holes are formed in the positions, corresponding to the positions of the adjusting rods 410 and the limiting rods 411, of the two sides of the upper surface of the anti-deviation block 412, a telescopic hose is arranged on the upper surface of the ash storage tank 413, corresponding to the position of the supporting frame 424, one-way valves are arranged at the two ends of the telescopic hose, a sliding plate is arranged at the upper end of the telescopic hose, the sliding plate is sleeved on the supporting frame 424, the other side of the sliding plate is connected to the adjusting rods 410 and moves up and down along with the adjusting rods 410, a hose connected with the lower end of the telescopic hose is inserted into the ash storage tank 413, a filter screen is also arranged at one end of the hose inserted into the ash storage tank 413, and the hose connected with the upper end of the telescopic hose is connected with the heat exchange tube body 1, so that water flow in the ash storage tank 413 is extracted to flow back into the heat exchange tube body 1 in the telescopic hose stretching process;
in the prior art, after cleaning attachments attached to the inner wall of the heat exchange tube body 1, the cleaning structure in the heat exchange tube body 1 moves along with the flow of water flow, so that the attachments cleaned at each position in the heat exchange tube body 1 can be clamped at a narrower position in the transmission process under the transportation of the water flow, the heat exchange transmission in the heat exchange tube body 1 is blocked, and the narrower position is inconvenient to clean;
the switch valve on the conducting pipe 418 is opened at intervals under the control of the boiler control box, so that the water flow in the heat exchange pipe body 1 carries scraped attachments from the position of the three-way connecting pipe 41 under the action of the fan in the bellows 419, the fan rotating shaft in the bellows 419 is in transmission connection with the third transmission rotating wheel 422 through the transmission belt 31, the rotating disk 49 moves up and down under the limit of the limiting rod 411 through the connecting rod 423 to drag the adjusting rod 410 in the rotating process, the connecting rod 423 contacts with the trigger switch 48 on the rotating disk 49 when being rotationally dragged by the rotating disk 49 in the moving process, the trigger switch 48 is sequentially triggered at intervals, when the upper end of the connecting rod 423 reaches the highest position, the trigger switch 48 on the rotating disk 49 is triggered, so that the boiler control equipment opens the power supply to the connecting spring 416, the connecting springs 416 are electrified to shrink to pull the movable pressing plate 414 and the fixed pressing plate 415 on two sides of the fixed pressing plate 415 to keep the horizontal, so that water flows through the filter screen when the movable pressing plate 414 and the fixed pressing plate 415 are pressed down, scale is pressed below the movable pressing plate 414 and the fixed pressing plate 415, impurities in the backflow water flow are reduced, when the upper end of the connecting rod 423 reaches the lowest position, the trigger switch 48 on the rotary table 49 is triggered, the connecting springs 416 are automatically popped up after the power failure, the movable pressing plate 414 is not pulled to automatically droop, the water flow remained on the movable pressing plate 414 flows away from the movable pressing plate 414 in the rising process of the movable pressing plate 414 and the fixed pressing plate 415, impurities on the movable pressing plate 414 and the fixed pressing plate 415 are driven in the flowing process of the water flow, more impurities can be pressed below the movable pressing plate 414 and the fixed pressing plate 415, and the impurity amount below the movable pressing plate 414 and the fixed pressing plate 415 is increased, the internal pressure sensor 426 of cavity 427 detects the effort that stripper plate 425 pushed down and increases gradually, when the effort that pushes down that pressure sensor 426 detected reaches the setting value, boiler control equipment sends out the alarm through the siren and informs the clearance of the inside impurity of ash storage bin 413 in time later, the rivers that the inside of ash storage bin 413 flowed in can flow back to heat exchange tube body 1 inside again under flexible hose effect, make ash storage bin 413 can drain out inside rivers before carrying out rivers injection next time, and conducting tube 418, ash storage bin 413, flexible hose and hose outside all are equipped with insulation construction, prevent thermal loss.
When the application is used, the micro motor on the connecting plates 2 at two sides drives the rotary connecting pipe 36 to rotate through the output gear on the output end, so that the inner scraper 38 arranged at the inner side of the rotary connecting pipe 36 at two sides of the straight part of the heat exchange tube body 1 can clean scale on the inner wall of the heat exchange tube body 1 in the rotating process, the inner scraper 38 is blocked by the cushion block 310 in the process of scraping the attachments on the inner side wall of the heat exchange tube body 1, the inner scraper 38 can slide upwards along the inclined surface of the cushion block 310 under the pushing of the rotating acting force, the reset spring connected with the telescopic frame 318 is stretched in the sliding process, the stretched reset spring drives the inner scraper 38 to reset after the inner scraper 38 slides from the position of the cushion block 310, the cushion plate arranged at the inner side of the telescopic box 319 can limit the displacement of the telescopic frame 318 after rebound, the inner scraper 38 is prevented from being rapidly rebounded under the action of the reset spring and not being limited to damage the inner wall of the heat exchange tube body 1, the inner scraper 38 can shake under the action of the cushion block 310 and the reset spring when scraping work is carried out, the scraped objects attached to the scraper body can fall down, the scraping work of the inner scraper 38 is not affected, the rotating connecting tube 36 can drive the first driving gear 316 on one end of the connecting rotating shaft 37 to rotate through the driving tooth groove 317 in the rotating process, the first driving gear 315 connected on the other end of the connecting rotating shaft 37 can drive the rotating toothed ring 311 in the sliding groove 314 to rotate in the rotating process, the outer scraper 39 connected on the connecting ring plate 312 can be driven to clean the attachments outside the heat exchange tube body 1 in the rotating process of the rotating toothed ring 311, the attachments are prevented from affecting the heat exchange efficiency of the heat exchange tube body 1, the shaftless auger 33 arranged in the bending part of the heat exchange tube body 1 scrapes scale on the inner wall of the bending part in the rotating process, water flow in the heat exchange tube body 1 can circulate from the position of the communication hole 34 on the shaftless auger 33, the two sides of the straight part of the heat exchange tube body 1 are provided with rotating connecting pipes 36, the rotating connecting pipes 36 on the two sides synchronously rotate, and the two ends of the inner scraper 38 in the heat exchange tube body 1 and the two ends of the outer scraper 39 on the outer side of the heat exchange tube body 1 are respectively connected with the rotating connecting pipes 36 on the two sides of the heat exchange tube body 1 and the connecting ring plate 312;
the switch valve on the conducting pipe 418 is opened at intervals under the control of the boiler control box, so that the water flow in the heat exchange pipe body 1 carries scraped attachments from the position of the three-way connecting pipe 41 under the action of the fan in the bellows 419, the fan rotating shaft in the bellows 419 is in transmission connection with the third transmission rotating wheel 422 through the transmission belt 31, the rotating disk 49 moves up and down under the limit of the limiting rod 411 through the connecting rod 423 to drag the adjusting rod 410 in the rotating process, the connecting rod 423 contacts with the trigger switch 48 on the rotating disk 49 when being rotationally dragged by the rotating disk 49 in the moving process, the trigger switch 48 is sequentially triggered at intervals, when the upper end of the connecting rod 423 reaches the highest position, the trigger switch 48 on the rotating disk 49 is triggered, so that the boiler control equipment opens the power supply to the connecting spring 416, the connecting springs 416 are electrified to shrink to pull the movable pressing plate 414 and the fixed pressing plate 415 on two sides of the fixed pressing plate 415 to keep the horizontal, so that water flows through the filter screen when the movable pressing plate 414 and the fixed pressing plate 415 are pressed down, scale is pressed below the movable pressing plate 414 and the fixed pressing plate 415, impurities in the backflow water flow are reduced, when the upper end of the connecting rod 423 reaches the lowest position, the trigger switch 48 on the rotary table 49 is triggered, the connecting springs 416 are automatically popped up after the power failure, the movable pressing plate 414 is not pulled to automatically droop, the water flow remained on the movable pressing plate 414 flows away from the movable pressing plate 414 in the rising process of the movable pressing plate 414 and the fixed pressing plate 415, impurities on the movable pressing plate 414 and the fixed pressing plate 415 are driven in the flowing process of the water flow, more impurities can be pressed below the movable pressing plate 414 and the fixed pressing plate 415, and the impurity amount below the movable pressing plate 414 and the fixed pressing plate 415 is increased, when the pressure sensor 426 in the cavity 427 detects that the acting force of the pressing plate 425 pressing down is gradually increased and the pressing acting force detected by the pressure sensor 426 reaches a set value, the boiler control device sends out an alarm through the alarm to inform the later timely cleaning of impurities in the ash storage tank 413, and water flowing into the ash storage tank 413 can flow back into the heat exchange tube body 1 again under the action of the telescopic hose, so that the ash storage tank 413 can drain out internal water before water flow injection is performed next time.
The preferred embodiments of the application disclosed above are intended only to assist in the explanation of the application. The preferred embodiments are not intended to be exhaustive or to limit the application to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and the practical application, to thereby enable others skilled in the art to best understand and utilize the application. The application is limited only by the claims and the full scope and equivalents thereof.
Claims (7)
1. The utility model provides a self-cleaning mechanism of heat exchange tube on exhaust-heat boiler, includes heat exchange tube body (1), connecting plate (2) are installed to heat exchange tube body (1) lateral wall both sides, characterized in that, heat exchange tube body (1) lateral wall both sides are close to connecting plate (2) position department all installs rotation connecting pipe (36), upper and lower two adjacent rotation connecting pipe (36) are connected through transmission belt (31) transmission, rotation connecting pipe (36) lateral wall one side integrated into one piece has first transmission runner (32), rotation connecting pipe (36) lateral wall is close to first transmission runner (32) position department installs connection runner (313), rotation connecting pipe (36) inside wall intermediate position department installs interior scraper (38), heat exchange tube body (1) lateral wall four directions are corresponding rotation connecting pipe (36) position department all is connected with connecting frame (35), heat exchange tube body (1) inboard corresponds one end of interior scraper (38) is installed through the installation through the collar and is had no auger (319), heat exchange tube body (1) lateral wall is located and is installed corresponding to the installation collar (33) and is equipped with a plurality of annular grooves (33) in the inside diameter of connection groove (38), the upper surface of the inner scraper (38) is provided with a telescopic frame (318) corresponding to the position of the telescopic box (319), the telescopic box (319) is internally provided with a reset spring corresponding to the position of the telescopic frame (318), and cushion blocks (310) are integrally formed in four directions on the inner side wall of the heat exchange tube body (1).
2. The self-cleaning mechanism of a heat exchange tube on a waste heat boiler according to claim 1, wherein a plurality of evenly distributed driving tooth grooves (317) are formed in the outer side wall of the connecting rotating wheel (313), a connecting rotating shaft (37) is rotatably connected to the outer side wall of the connecting frame (35), a first driving gear (316) is mounted at one end of the connecting rotating shaft (37) corresponding to the driving tooth grooves (317), a first transmission gear (315) is mounted at one end of the connecting rotating shaft (37) far away from the driving tooth grooves (317), a sliding groove (314) is mounted at the position, close to the first transmission gear (315), of the outer side wall of the heat exchange tube body (1), a rotating toothed ring (311) is slidably connected to the inner side of the sliding groove (314), a connecting ring plate (312) is integrally formed on one side of the outer side wall of the rotating toothed ring (311), and an outer scraper (39) is mounted on one side of the outer side wall of the connecting ring plate (312).
3. The self-cleaning mechanism of a heat exchange tube on a waste heat boiler according to claim 1, wherein a second driving gear (46) is installed on the outer side wall of the rotary connecting tube (36) close to one side of the first driving rotating wheel (32), a mounting groove (43) is formed in the position, corresponding to the second driving gear (46), of the upper surface of the connecting plate (2), a second driving gear (45) is rotatably connected to the position, corresponding to the second driving gear (46), of the lower surface of the inner part of the mounting groove (43), a fourth driving rotating wheel (44) is installed on the upper surface of the second driving gear (45), a three-way connecting tube (41) is sleeved on the outer side wall of the heat exchange tube body (1), and the second driving rotating wheel (42) is rotatably connected to the upper surface of the three-way connecting tube (41) through a rotating shaft.
4. A self-cleaning mechanism of a heat exchange tube on a waste heat boiler according to claim 3, wherein one end of the three-way connecting tube (41) far away from the heat exchange tube body (1) is connected with a conducting tube (418), the outer side wall of the conducting tube (418) is connected with a bellows (419), the upper surface of the bellows (419) is rotationally connected with a transmission turning gear (420) through a rotating shaft, the position of the upper surface of the bellows (419) corresponding to the transmission turning gear (420) is rotationally connected with a turning gear (421) through a connecting frame, one side of the outer side wall of the turning gear (421) is provided with a third transmission turning wheel (422), and one side of the outer side of the connecting frame corresponding to the position of the turning gear (421) is rotationally connected with a transmission rotating shaft (47).
5. The self-cleaning mechanism of a heat exchange tube on a waste heat boiler according to claim 4, wherein one end of the transmission rotating shaft (47) far away from the third transmission rotating wheel (422) is connected with a rotary disc (49), two sides of the outer side wall of the rotary disc (49) are both connected with a trigger switch (48), the outer side of the outer side wall of the rotary disc (49) is rotationally connected with a connecting rod (423), the lower end of the connecting rod (423) is rotationally connected with an adjusting rod (410), an anti-deflection block (412) is arranged below the outer side wall of the adjusting rod (410), the lower end of the transmission tube (418) is connected with an ash storage box (413), and a supporting frame (424) is connected to the upper surface of the ash storage box (413) corresponding to the position of the transmission rotating shaft (47).
6. The self-cleaning mechanism of a heat exchange tube on a waste heat boiler according to claim 5, wherein a guide block (417) is integrally formed on one side of the inner side wall of the ash storage box (413), a fixed pressing plate (415) is connected to the inner side of the ash storage box (413) corresponding to the lower end of the adjusting rod (410), limit rods (411) are connected to two sides of the upper surface of the fixed pressing plate (415), movable pressing plates (414) are connected to two sides of the outer side wall of the fixed pressing plate (415) through hinge rotation, connecting springs (416) are connected to the upper surface of the movable pressing plate (414), and a protective sleeve is sleeved on the position of the upper surface of the movable pressing plate (414) corresponding to the connecting springs (416).
7. The self-cleaning mechanism of a heat exchange tube on a waste heat boiler according to claim 6, wherein a cavity (427) is formed in the middle position inside the anti-deviation block (412), an extrusion plate (425) is connected to the cavity (427) at the lower end corresponding to the adjusting rod (410), a pressure sensor (426) is connected to the lower surface inside the cavity (427), and holes are formed in the two sides of the upper surface of the anti-deviation block (412) at the positions corresponding to the adjusting rod (410) and the limiting rod (411).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211563531.2A CN115752080B (en) | 2022-12-07 | 2022-12-07 | Self-cleaning mechanism of heat exchange tube on waste heat boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211563531.2A CN115752080B (en) | 2022-12-07 | 2022-12-07 | Self-cleaning mechanism of heat exchange tube on waste heat boiler |
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| CN115752080A CN115752080A (en) | 2023-03-07 |
| CN115752080B true CN115752080B (en) | 2023-09-05 |
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| CN202211563531.2A Active CN115752080B (en) | 2022-12-07 | 2022-12-07 | Self-cleaning mechanism of heat exchange tube on waste heat boiler |
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| CN114251971A (en) * | 2022-03-02 | 2022-03-29 | 山东东研智能科技有限公司 | Cleaning device for inner wall of heat exchange tube of heat exchanger |
| CN114593616A (en) * | 2022-03-16 | 2022-06-07 | 广东依恳丰热能设备有限公司 | Heat exchanger capable of achieving reciprocating vibration type movement and uniform heat exchange |
| CN114688766A (en) * | 2022-03-10 | 2022-07-01 | 江苏艾普森环保科技有限公司 | High-efficient low temperature heat pump evaporator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2012052740A (en) * | 2010-09-01 | 2012-03-15 | Ihi Corp | Ash removal device |
| EP3240975A1 (en) * | 2014-12-29 | 2017-11-08 | Felino-Fundição de Const. Mecânicas, SA | Feeding boiler for heating water or other thermal fluid lines with modular heat exchanger and cleaning system |
| CN113790616A (en) * | 2021-08-16 | 2021-12-14 | 南京翩然环保科技有限公司 | Automatic clean high-efficient heat transfer heat exchanger of incrustation scale |
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|---|---|
| CN115752080A (en) | 2023-03-07 |
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