CN116892859A - Automatic ash removing structure, tubular heat exchanger with same and ash removing method thereof - Google Patents

Automatic ash removing structure, tubular heat exchanger with same and ash removing method thereof Download PDF

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Publication number
CN116892859A
CN116892859A CN202310946933.9A CN202310946933A CN116892859A CN 116892859 A CN116892859 A CN 116892859A CN 202310946933 A CN202310946933 A CN 202310946933A CN 116892859 A CN116892859 A CN 116892859A
Authority
CN
China
Prior art keywords
heat exchanger
circular ring
arc
heat exchange
exchange tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310946933.9A
Other languages
Chinese (zh)
Inventor
钱静
吴舟
郭锦翔
韩志飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangzhong Shenyang Heat Exchange Equipment Co ltd
Original Assignee
Yangzhong Shenyang Heat Exchange Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yangzhong Shenyang Heat Exchange Equipment Co ltd filed Critical Yangzhong Shenyang Heat Exchange Equipment Co ltd
Priority to CN202310946933.9A priority Critical patent/CN116892859A/en
Publication of CN116892859A publication Critical patent/CN116892859A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/02—Non-rotary, e.g. reciprocated, appliances having brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/04—Cleaning by suction, with or without auxiliary action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F28G15/003—Control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F28G15/04—Feeding and driving arrangements, e.g. power operation

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

Abstract

The application relates to the technical field related to heat exchangers, in particular to an automatic ash removing structure, a tubular heat exchanger with the same and an ash removing method thereof, wherein the automatic ash removing structure is used for wiping the outer wall of a heat exchange tube of a heat exchanger body, and the heat exchanger body is arranged on a base; the automatic ash removal structure includes: the circular ring is movably arranged on the base and is connected with a bidirectional driving mechanism arranged on the base, the bidirectional driving mechanism can drive the circular ring to move along the axial direction of the heat exchanger body, and a dust collection mechanism is further arranged on the circular ring and is connected with the bidirectional driving mechanism; arc be equipped with two in the ring, be equipped with fine hair on the inner wall of arc, finally, promoted the effect and the efficiency of deashing greatly, avoided leading to the heat exchange efficiency of heat exchanger body to reduce because of long-time dust accumulation, seriously influence the problem emergence of heat exchanger body normal use.

Description

Automatic ash removing structure, tubular heat exchanger with same and ash removing method thereof
Technical Field
The application relates to the technical field related to heat exchangers, in particular to an automatic ash removing structure, a tubular heat exchanger with the same and an ash removing method thereof.
Background
The tubular heat exchanger is a common energy-saving device for realizing heat transfer between fluids, and can transfer heat from fluid with higher temperature to fluid with lower temperature, thereby effectively improving the utilization rate of energy sources. Certain industrial fields can generate a large amount of high-temperature smoke in the production process, and in general, the problem of smoke waste heat recovery can be well solved by using a tubular heat exchanger.
However, high-temperature flue gas generated in industry contains a large amount of dust or slag, and in the waste heat recovery process, the dust or slag is easy to adsorb or adhere to the outer wall of the heat exchange tube, and long-time dust accumulation can reduce the heat exchange efficiency of the heat exchanger, so that the normal use of the heat exchanger is seriously affected.
The existing ash cleaning device is usually cleaned by a hairbrush under the same pressure, and because accumulated dust on the heat exchange tube is possibly thicker, the smaller force is difficult to ensure thorough cleaning, the larger force can cause the dust to harden easily, the dust is difficult to fall off smoothly, and the ideal cleaning effect cannot be achieved.
Disclosure of Invention
The application aims to provide an automatic ash removing structure, a tubular heat exchanger with the same and an ash removing method thereof, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present application provides the following technical solutions:
an automatic ash removing structure is used for wiping the outer wall of a heat exchange tube of a heat exchanger body, and the heat exchanger body is arranged on a base;
the automatic ash removal structure includes:
the circular ring is movably arranged on the base and is connected with a bidirectional driving mechanism arranged on the base, the bidirectional driving mechanism can drive the circular ring to move along the axial direction of the heat exchanger body, and a dust collection mechanism is further arranged on the circular ring and is connected with the bidirectional driving mechanism;
the circular ring is internally provided with two arc plates, the inner wall of each arc plate is provided with fluff for wiping the outer wall of the heat exchange tube of the heat exchanger body, the arc plates are connected with an elastic supporting mechanism arranged on the circular ring, and the elastic supporting mechanism is connected with a unidirectional triggering mechanism;
the unidirectional trigger mechanism triggers at the end of the stroke of the circular motion and drives the elastic support mechanism to move, so that the pressure of the arc plate on the outer wall of the heat exchange tube of the heat exchanger body is promoted to change.
As a further scheme of the application: the elastic supporting mechanism comprises a threaded matching component arranged on the circular ring and an elastic sliding component connected with the threaded matching component and the arc-shaped plate, and the threaded matching component is connected with the unidirectional triggering mechanism.
As still further aspects of the application: the screw thread cooperation subassembly is including rotating the second threaded rod of installing on the ring and the cover is located second threaded sleeve on the second threaded rod, second threaded sleeve with second threaded rod threaded connection, the second threaded rod is connected one-way trigger mechanism, second threaded sleeve with elasticity slip subassembly is connected.
As still further aspects of the application: the elastic sliding assembly comprises two upright posts fixed on the arc plate, a sliding plate in sliding connection with the two upright posts and two cylindrical springs respectively sleeved on the peripheries of the upright posts, one end of each cylindrical spring is connected with the arc plate, the other end of each cylindrical spring is connected with the sliding plate, one end, far away from the inner wall of the circular ring, of each second threaded sleeve is fixedly connected with the sliding plate, one side of the sliding plate is also fixedly provided with a guide post, and the guide post penetrates through and is fixedly arranged on a protruding block on the circular ring and is in sliding connection with the protruding block.
As still further aspects of the application: the unidirectional trigger mechanism comprises a first ratchet wheel and a second ratchet wheel which are fixedly arranged on the second threaded rod, and a transverse plate which is fixedly arranged on the base;
the transverse plate is fixedly provided with a first assembly plate and a second assembly plate, the first assembly plate and the second assembly plate are arranged in a staggered mode, a plurality of inclined grooves are formed in the first assembly plate and the second assembly plate at equal intervals along the length direction, each inclined groove is internally hinged to one pawl, a torsion spring is arranged between each pawl and the inner wall of each inclined groove, and the directions of the pawls on the first assembly plate and the second assembly plate are opposite.
As still further aspects of the application: the bidirectional driving mechanism comprises a first threaded rod rotatably mounted on the base, a first threaded sleeve sleeved on the first threaded rod and a driving motor mounted on the base;
the output end of the driving motor is connected with the first threaded rod, and the first threaded sleeve is in threaded connection with the first threaded rod and is fixed with the circular ring.
As still further aspects of the application: the dust collection mechanism comprises an air pump arranged on the circular ring, a dust collection head connected with an air inlet of the air pump, and a driving shaft of the air pump is connected with the first threaded rod through a transmission mechanism.
As still further aspects of the application: the transmission mechanism comprises a rotating shaft arranged on the base and a sleeve sleeved on the rotating shaft in a sliding mode, the rotating shaft is connected with the first threaded rod through a first transmission belt, the sleeve is connected with an output shaft of the air pump through a second transmission belt, two strip-shaped protrusions are arranged on the outer wall of the rotating shaft, and two strip-shaped grooves matched with the strip-shaped protrusions are formed in the inner wall of the sleeve.
A tubular heat exchanger, which comprises the automatic ash cleaning structure.
The ash removing method of the tubular heat exchanger comprises the following steps:
step one, the bidirectional driving mechanism works positively to drive the circular ring to move positively along the axial direction of the heat exchanger body;
secondly, the elastic supporting mechanism promotes the arc-shaped plate to apply pressure to the heat exchange tube, the arc-shaped plate erases dust accumulated on the heat exchange tube, the bidirectional driving mechanism drives the dust collection mechanism to work, and the dust collection mechanism absorbs and transfers the erased dust to perform primary dust removal on the heat exchange tube;
step three, the unidirectional trigger mechanism triggers, the pressure applied by the arc plate to the heat exchange tube is reduced, the bidirectional drive mechanism works reversely, and secondary ash removal is carried out on the heat exchange tube;
and step four, the unidirectional triggering mechanism triggers again, and the elastic supporting mechanism moves to promote the pressure applied by the arc-shaped plate to the heat exchange tube to be increased.
Compared with the prior art, the application has the beneficial effects that: the application has novel design, when in actual use, the bidirectional driving mechanism drives the circular ring to reciprocate along the axial direction of the heat exchanger body, the elastic supporting mechanism provides supporting force for the arc plate, so that fluff on the inner wall of the arc plate is tightly attached to the outer wall of the heat exchanger body heat exchange tube, the circular ring is triggered in the back end stroke moving towards one side and drives the elastic supporting mechanism to trigger, the pressure of the arc plate on the outer wall of the heat exchanger body heat exchange tube is reduced, the fluff on the inner wall of the arc plate is enabled to be brushed on the outer wall of the heat exchange tube when the circular ring moves towards the other side in the resetting process, and meanwhile, the bidirectional driving mechanism drives the dust collecting mechanism to move, the dust collecting mechanism absorbs the dust, and through the mutual coordination between each mechanism and the parts, the outer wall of the heat exchange tube can be cleaned with different forces each time, the larger force is firstly used for wiping, the thicker dust on the outer wall of the heat exchange tube can be ensured to be separated, the lower force is required to be used for wiping the fluff on the inner wall of the heat exchange tube, the inner wall of the heat exchange tube is enabled to be brushed off, the dust on the outer wall of the heat exchange tube is enabled to be greatly removed, and the dust can be prevented from being easily from being fallen off from the outer wall of the heat exchange tube, and the heat exchanger is greatly polluted, the problem is solved, and the dust is greatly is prevented from being absorbed by the heat exchanger body.
Drawings
FIG. 1 is a schematic diagram of an embodiment of an automatic ash removal structure.
FIG. 2 is a schematic view of an embodiment of an automatic ash removal structure at another angle.
FIG. 3 is a schematic view of an embodiment of an automatic ash removal structure at another angle.
Fig. 4 is an enlarged view of the structure at a in fig. 3.
Fig. 5 is a schematic structural view of an elastic supporting mechanism in an embodiment of the automatic ash removing structure.
Fig. 6 is an enlarged view of the structure at B in fig. 5.
FIG. 7 is an exploded view of an elastic support mechanism in one embodiment of an automatic ash removal structure.
In the figure: 1. a base; 2. a heat exchanger body; 3. a circular ring; 4. a driving motor; 5. a first threaded rod; 6. a first threaded sleeve; 7. a first belt; 8. a rotating shaft; 9. a sleeve; 10. an arc-shaped plate; 11. a column; 12. a second threaded rod; 13. a second threaded sleeve; 14. a sliding plate; 15. a cylindrical spring; 16. a guide post; 17. a protruding block; 18. a cross plate; 19. a first ratchet; 20. a second ratchet; 21. a first assembly plate; 22. a second assembly plate; 23. an air pump; 24. a second belt; 25. a bar-shaped protrusion; 26. a strip-shaped groove; 27. a dust collection head.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but 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.
In addition, an element in the present disclosure may be referred to as being "fixed" or "disposed" on another element or being directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1-7, in an embodiment of the present application, an automatic ash cleaning structure is used for cleaning an outer wall of a heat exchange tube of a heat exchanger body 2, wherein the heat exchanger body 2 is mounted on a base 1;
the automatic ash removal structure includes:
the circular ring 3 is movably arranged on the base 1 and is connected with a bidirectional driving mechanism arranged on the base 1, the bidirectional driving mechanism can drive the circular ring 3 to move along the axial direction of the heat exchanger body 2, and a dust collection mechanism is further arranged on the circular ring 3 and is connected with the bidirectional driving mechanism;
the circular ring 3 is internally provided with two arc plates 10, the inner wall of each arc plate 10 is provided with fluff for wiping the outer wall of the heat exchange tube of the heat exchanger body 2, the arc plates 10 are connected with an elastic supporting mechanism arranged on the circular ring 3, and the elastic supporting mechanism is connected with a unidirectional triggering mechanism;
the unidirectional trigger mechanism triggers at the end of the travel of the movement of the circular ring 3 and drives the elastic support mechanism to move, so that the pressure of the arc-shaped plate 10 on the outer wall of the heat exchange tube of the heat exchanger body 2 is promoted to change.
In actual use, the bidirectional driving mechanism drives the circular ring 3 to reciprocate along the axial direction of the heat exchanger body 2, the elastic supporting mechanism provides supporting force for the arc plate 10, so that fluff on the inner wall of the arc plate 10 is tightly attached to the outer wall of the heat exchange tube of the heat exchanger body 2, the circular ring 3 is triggered in a rear end stroke moving towards one side and drives the elastic supporting mechanism to trigger, the pressure of the arc plate 10 on the outer wall of the heat exchange tube of the heat exchanger body 2 is reduced, and when the circular ring 3 moves towards the other side and resets, the fluff on the inner wall of the arc plate 10 is flicked on the outer wall of the heat exchange tube, so that dust falls off from the outer wall of the heat exchange tube, and meanwhile, the bidirectional driving mechanism drives the dust collecting mechanism to move, and the dust collecting mechanism absorbs the dust;
in summary, through mutually supporting between each mechanism and the part for in every turn clean the time, can clean the heat exchange tube outer wall different dynamics, use great power to clean earlier, can guarantee to build up thick dust break away from on the heat exchange tube outer wall, follow-up with less power to wipe, make fluff on the arc 10 inner wall then flick on the heat exchange tube outer wall, ensure that remaining dust can follow the heat exchange tube outer wall and drop smoothly, and by dust absorption mechanism carries out absorption treatment to the dust that floats, consequently, promoted the effect and the efficiency of deashing greatly, avoided leading to the heat exchange efficiency reduction of heat exchanger body 2 because of long-time dust accumulation, seriously influence the problem emergence of heat exchanger body 2 normal use, be suitable for popularization and use.
Referring to fig. 5, 6 and 7 again, the elastic supporting mechanism includes a threaded fitting assembly mounted on the ring 3 and an elastic sliding assembly connecting the threaded fitting assembly and the arc 10, and the threaded fitting assembly is connected with the unidirectional triggering mechanism.
The threaded matching assembly comprises a second threaded rod 12 rotatably mounted on the circular ring 3 and a second threaded sleeve 13 sleeved on the second threaded rod 12, the second threaded sleeve 13 is in threaded connection with the second threaded rod 12, the second threaded rod 12 is connected with the unidirectional triggering mechanism, and the second threaded sleeve 13 is connected with the elastic sliding assembly.
The elastic sliding assembly comprises two upright posts 11 fixed on the arc-shaped plate 10, a sliding plate 14 in sliding connection with the two upright posts 11, and two cylindrical springs 15 respectively sleeved on the peripheries of the two upright posts 11, one end of each cylindrical spring 15 is connected with the arc-shaped plate 10, the other end of each cylindrical spring is connected with the sliding plate 14, and one end, far away from the inner wall of the circular ring 3, of each second threaded sleeve 13 is fixedly connected with the sliding plate 14. A guide post 16 is fixed on one side of the sliding plate 14, and the guide post 16 penetrates through a protruding block 17 fixedly arranged on the circular ring 3 and is in sliding connection with the protruding block 17.
The unidirectional triggering mechanism comprises a first ratchet wheel 19 fixedly arranged on the second threaded rod 12, a second ratchet wheel 20 and a transverse plate 18 fixedly arranged on the base 1. The transverse plate 18 is fixedly provided with a first assembly plate 21 and a second assembly plate 22, the first assembly plate 21 and the second assembly plate 22 are arranged in a staggered mode, a plurality of inclined grooves are formed in the first assembly plate 21 and the second assembly plate 22 at equal intervals along the length direction, each inclined groove is internally hinged with a pawl, a torsion spring is arranged between each pawl and the inner wall of each inclined groove, and the directions of the pawls on the first assembly plate 21 and the second assembly plate 22 are opposite.
In the previous stroke of the ring 3 moving towards one side, the second ratchet 20 will pass through the pawl on the second assembly plate 22, at this time, the pawl on the second assembly plate 22 will deflect, the torsion spring deforms, the second ratchet 20 will not rotate, in this process, the fluff on the inner wall of the arc plate 10 will primarily wipe the dust on the outer wall of the heat exchange tube of the heat exchanger body 2 with larger force, in the subsequent stroke of the ring 3, the first ratchet 19 will pass through the pawl on the first assembly plate 21, and the pawl on the first assembly plate 21 cannot rotate, so that the first ratchet 19 drives the second threaded rod 12 to rotate, the guide post 16 and the protruding block 17 play a guiding role, therefore, the second threaded sleeve 13 will be in threaded fit with the second threaded rod 12, the second threaded sleeve 13 drives the sliding plate 14 to slide away from the two upright posts 11, correspondingly, the first ratchet 19 will pass through the pawl on the first assembly plate 21, and the second ratchet 19 will not rotate, and accordingly, the force of the second ratchet 19 will reduce the fluff on the outer wall of the heat exchange tube 2 when the ring is compressed, thereby reducing the force of the ring 10 on the outer wall of the heat exchange tube, and the heat exchange tube is more easily removed from the ring 10;
in the previous stroke of the ring 3 moving towards the other side, the first ratchet 19 will pass the pawl on the first assembly plate 21 again, at this time, the pawl on the first assembly plate 21 will rotate, the first ratchet 19 will not rotate, and in the next stroke of the ring 3, the second ratchet 20 will pass the pawl on the second assembly plate 22 again, the pawl on the second assembly plate 22 cannot rotate, so that the second ratchet 20 rotates, and further, the second threaded sleeve 13 drives the sliding plate 14 to slide on the two upright posts 11 towards the arc plate 10, so that the compression amount of the cylindrical spring 15 is recovered.
Referring to fig. 2 again, the bidirectional driving mechanism includes a first threaded rod 5 rotatably mounted on the base 1, a first threaded sleeve 6 sleeved on the first threaded rod 5, and a driving motor 4 mounted on the base 1;
the output end of the driving motor 4 is connected with the first threaded rod 5, and the first threaded sleeve 6 is in threaded connection with the first threaded rod 5 and is fixed with the circular ring 3.
It should be noted that, when ash is removed, the ring 3 needs to move bidirectionally, so the driving motor 4 selects a servo motor with a bidirectionally driven output end, and the model of the motor is not particularly limited, and the motor can be selected according to actual requirements.
Referring to fig. 4 and 5 again, the dust suction mechanism includes an air pump 23 mounted on the ring 3, a dust suction head 27 connected to an air inlet of the air pump 23, and a driving shaft of the air pump 23 is connected to the first threaded rod 5 through a transmission mechanism.
The transmission mechanism comprises a rotating shaft 8 which is rotatably arranged on the base 1 and a sleeve 9 which is sleeved on the rotating shaft 8, the rotating shaft 8 is connected with the first threaded rod 5 through a first transmission belt 7, the sleeve 9 is connected with an output shaft of the air pump 23 through a second transmission belt 24, two strip-shaped protrusions 25 are arranged on the outer wall of the rotating shaft 8, and two strip-shaped grooves 26 which are matched with the strip-shaped protrusions 25 are arranged on the inner wall of the sleeve 9.
When the driving motor 4 drives the first threaded rod 5 to rotate forward, the circular ring 3 moves away from the driving motor 4, and in the process, the compression amount of the cylindrical spring 15 is larger, so that in the process, dust erased by the arc plate 10 is thicker, meanwhile, the first threaded rod 5 drives the rotating shaft 8 to rotate through the first driving belt 7, the rotating shaft 8 drives the sleeve 9 to rotate through the strip-shaped protrusions 25 and the strip-shaped grooves 26, and the sleeve 9 drives the air pump 23 to work through the second driving belt 24, so that the erased thicker dust is sucked away by the dust suction head 27.
As another embodiment of the present application, a tubular heat exchanger is also provided, which includes the automatic ash cleaning structure.
The ash removing method of the tubular heat exchanger comprises the following steps:
step one, the bidirectional driving mechanism works positively to drive the circular ring 3 to move positively along the axial direction of the heat exchanger body 2;
step two, the elastic supporting mechanism promotes the arc-shaped plate 10 to apply pressure to the heat exchange tube, the arc-shaped plate 10 erases dust accumulated on the heat exchange tube, the bidirectional driving mechanism drives the dust collection mechanism to work, the dust collection mechanism absorbs and transfers the erased dust, and the heat exchange tube is subjected to primary dust removal;
step three, the unidirectional trigger mechanism triggers, the pressure applied by the arc-shaped plate 10 to the heat exchange tube is reduced, the bidirectional drive mechanism works reversely, and secondary ash removal is carried out on the heat exchange tube;
and step four, the unidirectional triggering mechanism triggers again, and the elastic supporting mechanism moves to promote the pressure applied by the arc-shaped plate 10 to the heat exchange tube to be increased.
It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

1. An automatic ash cleaning structure is used for wiping the outer wall of a heat exchange tube of a heat exchanger body (2), and the heat exchanger body (2) is arranged on a base (1);
characterized by comprising the following steps:
the circular ring (3) is movably arranged on the base (1) and is connected with a bidirectional driving mechanism arranged on the base (1), the bidirectional driving mechanism can drive the circular ring (3) to move along the axial direction of the heat exchanger body (2), a dust collection mechanism is further arranged on the circular ring (3), and the dust collection mechanism is connected with the bidirectional driving mechanism;
the device comprises an arc-shaped plate (10), wherein two arc-shaped plates (10) are arranged in the circular ring (3), fluff used for wiping the outer wall of a heat exchange tube of the heat exchanger body (2) is arranged on the inner wall of the arc-shaped plate (10), the arc-shaped plate (10) is connected with an elastic supporting mechanism arranged on the circular ring (3), and the elastic supporting mechanism is connected with a unidirectional triggering mechanism;
the unidirectional trigger mechanism triggers at the end of the travel of the movement of the circular ring (3) and drives the elastic support mechanism to move, so that the pressure of the arc plate (10) on the outer wall of the heat exchange tube of the heat exchanger body (2) is promoted to change.
2. An automatic ash removal structure according to claim 1, characterized in that the elastic supporting mechanism comprises a screw thread matching component mounted on the circular ring (3) and an elastic sliding component connecting the screw thread matching component and the arc plate (10), and the screw thread matching component is connected with the unidirectional triggering mechanism.
3. An automatic ash removal structure according to claim 2, characterized in that the screw-thread matching assembly comprises a second threaded rod (12) rotatably mounted on the circular ring (3) and a second threaded sleeve (13) sleeved on the second threaded rod (12), the second threaded sleeve (13) is in threaded connection with the second threaded rod (12), the second threaded rod (12) is connected with the unidirectional trigger mechanism, and the second threaded sleeve (13) is connected with the elastic sliding assembly.
4. An automatic ash removing structure according to claim 3, characterized in that the elastic sliding component comprises two upright posts (11) fixed on the arc plate (10), a sliding plate (14) connected with the two upright posts (11) in a sliding manner, and two cylindrical springs (15) respectively sleeved on the peripheries of the two upright posts (11), one end of each cylindrical spring (15) is connected with the arc plate (10), the other end is connected with the sliding plate (14), and one end of the second threaded sleeve (13) far away from the inner wall of the circular ring (3) is fixedly connected with the sliding plate (14);
one side of the sliding plate (14) is also fixed with a guide column (16), and the guide column (16) penetrates through and is fixedly arranged on a protruding block (17) on the circular ring (3) and is in sliding connection with the protruding block (17).
5. An automatic ash removal structure according to claim 4, characterized in that said one-way trigger mechanism comprises a first ratchet wheel (19) fixedly mounted on said second threaded rod (12), a second ratchet wheel (20) and a cross plate (18) fixedly mounted on said base (1);
wherein, diaphragm (18) fixed mounting has first assembly board (21) and second assembly board (22), first assembly board (21) and second assembly board (22) dislocation set, and all be equipped with a plurality of inclined grooves along length direction equidistance on the two, every all articulate in the inclined groove has a pawl, the pawl with be equipped with the torsional spring between the inner wall in inclined groove, first assembly board (21) with the orientation of pawl is opposite on the second assembly board (22) two.
6. The automatic ash removing structure according to claim 1, wherein the bidirectional driving mechanism comprises a first threaded rod (5) rotatably mounted on the base (1), a first threaded sleeve (6) sleeved on the first threaded rod (5), and a driving motor (4) mounted on the base (1);
the output end of the driving motor (4) is connected with the first threaded rod (5), and the first threaded sleeve (6) is in threaded connection with the first threaded rod (5) and is fixed with the circular ring (3).
7. An automatic ash cleaning structure according to claim 6, characterized in that the dust suction mechanism comprises an air pump (23) mounted on the circular ring (3), the air inlet of the air pump (23) is connected with a dust suction head (27), and the driving shaft of the air pump (23) is connected with the first threaded rod (5) through a transmission mechanism.
8. The automatic ash removal structure according to claim 7, wherein the transmission mechanism comprises a rotating shaft (8) rotatably mounted on the base (1) and a sleeve (9) slidably sleeved on the rotating shaft (8), the rotating shaft (8) is connected with the first threaded rod (5) through a first transmission belt (7), the sleeve (9) is connected with an output shaft of the air pump (23) through a second transmission belt (24), two strip-shaped protrusions (25) are arranged on the outer wall of the rotating shaft (8), and two strip-shaped grooves (26) matched with the strip-shaped protrusions (25) are arranged on the inner wall of the sleeve (9).
9. A tubular heat exchanger comprising the automatic ash removal structure of claim 1.
10. A method of ash removal for a tubular heat exchanger as set forth in claim 9, comprising the steps of:
step one, the bidirectional driving mechanism works positively to drive the circular ring (3) to move positively along the axial direction of the heat exchanger body (2);
secondly, the elastic supporting mechanism promotes the arc-shaped plate (10) to apply pressure to the heat exchange tube, the arc-shaped plate (10) erases dust accumulated on the heat exchange tube, the bidirectional driving mechanism drives the dust collection mechanism to work, and the dust collection mechanism absorbs and transfers the erased dust to perform primary dust removal on the heat exchange tube;
step three, the unidirectional triggering mechanism triggers, the pressure applied by the arc-shaped plate (10) to the heat exchange tube is reduced, the bidirectional driving mechanism works reversely, and secondary ash removal is carried out on the heat exchange tube;
and step four, the unidirectional triggering mechanism triggers again, and the elastic supporting mechanism moves to promote the pressure applied by the arc-shaped plate (10) to the heat exchange tube to be increased.
CN202310946933.9A 2023-07-31 2023-07-31 Automatic ash removing structure, tubular heat exchanger with same and ash removing method thereof Pending CN116892859A (en)

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CN202310946933.9A CN116892859A (en) 2023-07-31 2023-07-31 Automatic ash removing structure, tubular heat exchanger with same and ash removing method thereof

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Application Number Priority Date Filing Date Title
CN202310946933.9A CN116892859A (en) 2023-07-31 2023-07-31 Automatic ash removing structure, tubular heat exchanger with same and ash removing method thereof

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CN116892859A true CN116892859A (en) 2023-10-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117537638A (en) * 2023-12-29 2024-02-09 江苏科力普汽车部件有限公司 Heat exchange fin and heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117537638A (en) * 2023-12-29 2024-02-09 江苏科力普汽车部件有限公司 Heat exchange fin and heat exchanger
CN117537638B (en) * 2023-12-29 2024-05-03 江苏科力普汽车部件有限公司 Heat exchange fin and heat exchanger

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