CN115574340B - Anti-blocking device for smoke duct baffle of tubular heating furnace - Google Patents
Anti-blocking device for smoke duct baffle of tubular heating furnace Download PDFInfo
- Publication number
- CN115574340B CN115574340B CN202211229578.5A CN202211229578A CN115574340B CN 115574340 B CN115574340 B CN 115574340B CN 202211229578 A CN202211229578 A CN 202211229578A CN 115574340 B CN115574340 B CN 115574340B
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- China
- Prior art keywords
- partition plate
- plate
- rod
- baffle
- mounting frame
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 18
- 239000000779 smoke Substances 0.000 title claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 107
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 238000004321 preservation Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 11
- 230000008602 contraction Effects 0.000 claims abstract description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 14
- 239000003546 flue gas Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 10
- 238000005299 abrasion Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 26
- 230000008569 process Effects 0.000 description 25
- 238000010586 diagram Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/02—Linings; Jackets; Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/08—Doors or covers specially adapted for smoke-boxes, flues, or chimneys
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
Abstract
The invention discloses an anti-blocking device for a smoke air duct baffle of a tubular heating furnace, which belongs to the field of boiler pipelines and comprises a mounting frame with holes on the front wall; the plugging piece is used for plugging the hole; the device comprises a hydraulic rod arranged on the top wall of a mounting frame, wherein a baffle is fixedly arranged at the output end of the hydraulic rod, and heat-insulating coatings are coated on the surfaces of the baffle and the mounting frame; the folding mechanism is used for driving the partition plate to move along the horizontal direction, so that the partition plate can block holes on the installation frame, the partition plate is not required to be in contact with the installation frame before the partition plate blocks the holes, and the partition plate and the side wall of the installation frame can be prevented from being worn mutually under the action of the folding mechanism, so that the loss of heat preservation coating on the surface of the partition plate can be prevented, the deformation probability of the partition plate due to expansion and contraction is reduced, and the effect of preventing the partition plate from being blocked and being unable to be closed due to deformation is achieved.
Description
Technical Field
The invention relates to the field of boiler pipelines, in particular to an anti-blocking device for a smoke air duct baffle of a tubular heating furnace.
Background
The boiler is energy conversion equipment, and outputs steam, high-temperature water or an organic heat carrier with certain heat energy; the flue gas duct is a flue gas and air inlet pipeline of the industrial furnace, and an air door (valve) is arranged in the pipeline for adjusting the wind speed and the pressure in the pipeline, and is a pipeline composed of a pipeline with a heating surface of a furnace wall part, a wall cladding pipe and the like.
The prior patent (publication number: CN 103090401B) is a flue baffle, wherein the surfaces of the baffle and the shaft as well as other internal parts are coated with heat-insulating paint to prevent carbonization and deformation at high temperature; the joint bearing and/or the universal joint are adopted to further overcome the problem that the production is influenced by the clamping after the installation or the heating and the stress deformation, the problem that the sealing is influenced after the mechanical deformation of the traditional structure is also overcome, and the problem that the leakage is caused by the mechanical deformation is also overcome.
The above patent can prevent the baffle from deforming through painting heat preservation and heat insulation coating, but in the process of up-and-down movement of the baffle, the surfaces of the baffle are rubbed with the surfaces of the frames, so that the heat preservation coating on the surfaces of the baffle and the frames is quickly lost, and if the gas in the flue contains particles, the particles quickly move along the surfaces of the baffle in the process of closing the baffle, the abrasion speed of the heat preservation coating is accelerated in the process, so that the heat preservation effect is reduced, the baffle still deforms due to thermal expansion and contraction, the friction force between the baffle and the guide groove is increased, and the baffle is easy to jam and can not be normally closed.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an anti-blocking device for a smoke duct baffle of a tubular heating furnace, which can prevent a baffle from deforming due to expansion caused by heat and contraction caused by cold and ensure that the baffle can move normally.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
The anti-blocking device for the smoke duct baffle of the tubular heating furnace comprises a mounting frame with a hole on the front wall;
the plugging piece is used for plugging the hole; the device comprises a hydraulic rod arranged on the top wall of a mounting frame, wherein a baffle is fixedly arranged at the output end of the hydraulic rod, and heat-insulating coatings are coated on the surfaces of the baffle and the mounting frame;
the folding mechanism is used for driving the partition plate to move along the horizontal direction, so that the partition plate can block holes on the mounting frame, the partition plate does not need to be in contact with the mounting frame before the partition plate blocks the holes, the friction force born by the partition plate is reduced, the abrasion of the heat-insulating coating is prevented, and the deformation and the clamping of the partition plate due to thermal expansion and cold contraction are prevented; the hydraulic rod is fixedly arranged on the mounting plate, an electric telescopic rod is fixedly arranged on the top wall of the mounting frame, and the output end of the electric telescopic rod is fixedly connected with the side wall of the mounting plate;
the protection mechanism is used for reducing the impact force of the flue gas received by the partition plate, thereby reducing the friction force of particulate matters in the flue gas and the heat preservation coating, reducing the wear degree of the heat preservation coating, thereby reducing the probability of deformation of the partition plate, the fixed plate is horizontally and symmetrically and fixedly arranged on the front wall of the mounting frame, the rotating rod is vertically and rotatably arranged on the bottom wall of the fixed plate, the guide plate with the cambered surface side wall is fixedly arranged on the rotating rod, the air holes are uniformly formed in the guide plate, and the mounting frame is provided with a control mechanism for driving the rotating rod to rotate.
Further, the control mechanism comprises jacks formed in the top walls of the two fixed plates, a stop lever is vertically movably inserted in each jack, the side walls of the adjacent sides of the two stop levers are inclined planes, and a driving mechanism matched with the baffle is arranged on the mounting frame.
Further, the driving mechanism comprises a first elastic air bag fixedly arranged on the inner top wall of the mounting frame, a first magnet is fixedly arranged on the bottom wall of the first elastic air bag, and a second magnet which is mutually attracted with the first elastic air bag is fixedly arranged on the output end of the hydraulic rod;
a second elastic air bag is fixedly arranged in the jack, and a guide pipe communicated with the air inlet of the second elastic air bag is fixedly arranged on the air inlet of the first elastic air bag;
the side wall of the installation frame is fixedly provided with a spring telescopic rod matched with the guide plate, and the output end of the spring telescopic rod is fixedly provided with a steel ball.
Furthermore, the heat preservation sleeves made of aluminum silicate fiber materials are fixedly sleeved outside the first magnet and the second magnet.
Furthermore, each air hole is internally and horizontally provided with a cross rod, and a spoiler is movably sleeved on the cross rod.
Further, a groove is formed in the bottom wall of the spoiler, and the side wall, far away from one side of the cross rod, of the groove is inclined downwards.
Further, a second mounting rod is fixedly mounted on the inner side walls of the opposite sides of the mounting frame in a common horizontal mode, and a loop bar is sleeved on the second mounting rod in a rotating mode.
Further, the ratio of the inner diameter of the loop bar to the diameter of the second mounting bar is 4:1, and the length of the second mounting rod to the length of the loop rod is 2:1.
further, evenly fixed mounting has the dead lever on the lateral wall of baffle, a plurality of the dead lever is kept away from the common fixed mounting of one end of baffle has the guard plate backplate, the side area of guard plate and the side area ratio of baffle are 1:1.5, and the diameter of the fixing rod is 5mm.
Furthermore, the side wall of the protection plate is uniformly and fixedly provided with the inclined plate, the inclined plate is matched with the partition plate, and the inclined plates are connected end to end.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) According to the scheme, under the action of the folding mechanism, mutual abrasion between the partition board and the side wall of the mounting frame can be prevented, so that heat preservation coating loss on the surface of the partition board can be prevented, the probability of deformation of the partition board due to thermal expansion and contraction is reduced, and the effect of preventing the partition board from being blocked due to deformation and being incapable of being closed is achieved.
(2) According to the scheme, under the action of the protection mechanism, the airflow impact force received by the partition plate can be reduced in the process of blocking holes in the installation frame by using the partition plate, so that the speed of particulate matters moving along the surface of the partition plate is reduced, and the friction force received by the heat-insulating coating on the surface of the partition plate is reduced.
(3) This scheme can support the back wall of baffle in the hydraulic pressure pole extension process under the effect of second installation pole and loop bar to lead to the baffle to rock when preventing that the air current from striking the baffle, thereby reduced baffle lateral wall and installing frame lateral wall contact and mutual friction's probability, further improved the protection effect to the baffle.
Drawings
FIG. 1 is a schematic diagram of the front structure of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a sectional view of a baffle, cross bar, spoiler assembly of the present invention;
FIG. 4 is a cross-sectional view of a mounting plate of the present invention;
FIG. 5 is a combined view of the baffle plate, the protection plate, the sloping plate and the fixing rod according to the present invention;
FIG. 6 is a combination diagram of a spring telescoping rod and steel ball of the present invention;
fig. 7 is a combination diagram of a first magnet, a second magnet, and a thermal sleeve according to the present invention.
The reference numerals in the figures illustrate:
1. a mounting frame; 2. a hydraulic rod; 3. a partition plate; 4. a chute; 5. a mounting plate; 6. an electric telescopic rod; 7. a fixing plate; 8. a rotating lever; 9. a deflector; 10. air holes; 11. a jack; 12. a stop lever; 13. a first elastic balloon; 14. a first magnet; 15. a second magnet; 16. a second elastic balloon; 17. a conduit; 18. a spring telescoping rod; 19. a steel ball; 20. a thermal insulation sleeve; 21. a cross bar; 22. a spoiler; 23. a groove; 24. a second mounting bar; 25. a loop bar; 26. a fixed rod; 27. a protection plate; 28. and a sloping plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1:
referring to fig. 1-7, a device for preventing a flue and air duct baffle of a tube type heating furnace from being blocked comprises a mounting frame 1 with a hole on the front wall;
the plugging piece is used for plugging the hole; the device comprises a hydraulic rod 2 arranged on the top wall of a mounting frame 1, wherein a baffle plate 3 is fixedly arranged at the output end of the hydraulic rod 2, and heat preservation coatings are coated on the surfaces of the baffle plate 3 and the mounting frame 1;
the folding mechanism is used for driving the partition plate 3 to move along the horizontal direction, so that the partition plate 3 can block holes in the mounting frame 1, the partition plate 3 does not need to be in contact with the mounting frame 1 before the partition plate 3 blocks the holes, the friction force born by the partition plate 3 is reduced, the abrasion of the heat-insulating coating is prevented, and the deformation and the clamping of the partition plate 3 due to thermal expansion and cold contraction are prevented; the hydraulic rod 2 is fixedly arranged on the mounting plate 5, the electric telescopic rod 6 is fixedly arranged on the top wall of the mounting frame 1, and the output end of the electric telescopic rod 6 is fixedly connected with the side wall of the mounting plate 5;
the protection mechanism is used for reducing the impact force of the flue gas received by the partition plate 3, thereby reducing the friction force of particulate matters in the flue gas and heat preservation coating, reducing the abrasion degree of the heat preservation coating, thereby reducing the deformation probability of the partition plate 3, the fixing plate 7 is horizontally and symmetrically fixedly arranged on the front wall of the mounting frame 1, the rotating rod 8 is vertically and rotatably arranged on the bottom wall of the fixing plate 7, the guide plate 9 with the side wall being an arc surface is fixedly arranged on the rotating rod 8, the air holes 10 are uniformly formed in the guide plate 9, and the mounting frame 1 is provided with a control mechanism for driving the rotating rod 8 to rotate.
The control mechanism comprises jack 11 arranged on the top wall of two fixing plates 7, stop rods 12 are vertically movably inserted in the jack 11, the side walls of the adjacent sides of the two stop rods 12 are inclined planes, and a driving mechanism matched with the baffle is arranged on the mounting frame 1.
The driving mechanism comprises a first elastic air bag 13 fixedly arranged on the inner top wall of the mounting frame 1, a first magnet 14 is fixedly arranged on the bottom wall of the first elastic air bag 13, and a second magnet 15 which is mutually attracted with the first elastic air bag 13 is fixedly arranged on the output end of the hydraulic rod 2;
the jack 11 is internally and fixedly provided with a second elastic air bag 16, and the air inlet of the first elastic air bag 13 is fixedly provided with a conduit 17 communicated with the air inlet of the second elastic air bag 16;
a spring telescopic rod 18 matched with the guide plate 9 is fixedly arranged on the side wall of the mounting frame 1, and a steel ball 19 is fixedly arranged on the output end of the spring telescopic rod 18.
Firstly, the mounting frame 1 is mounted at the position between two adjacent air channels, and at the moment, the two air channels are communicated under the action of the holes; in the initial state, the hydraulic rod 2 and the electric telescopic rod 6 are in a contracted state, at the moment, the mounting plate 5 is positioned at one end of the sliding groove 4 far away from the front wall of the mounting frame 1, the top wall of the partition plate 3 is attached to the inner top wall of the mounting frame 1, and at the moment, air flow can normally pass through holes in the mounting frame 1;
when the air duct is required to be sealed, the hydraulic rod 2 is started first, the output end of the hydraulic rod 2 drives the partition plate 3 to move downwards, the partition plate 3 gradually moves to the right front of the hole in the process, when the hydraulic rod 2 moves downwards to the maximum extent, the electric telescopic rod 6 is started, the electric telescopic rod 6 stretches and drives the mounting plate 5 to move along the sliding groove 4, in the process, the mounting plate 5 drives the hydraulic rod 2 and the partition plate 3 mounted on the output end of the hydraulic rod 2 to move towards the direction of the hole, when the electric telescopic rod 6 stretches to the maximum extent in the mounting process, the side wall of the partition plate 3 is attached to the inner side wall of the mounting frame 1, namely, the partition plate 3 covers the surface of the hole, so that the hole can be plugged.
When the hydraulic rod 2 works, firstly the first magnet 14 and the second magnet 15 are adsorbed together, at the moment, the output end of the hydraulic rod 2 pulls the first elastic air bag 13 downwards, at the moment, the volume of the first elastic air bag 13 is increased, at the moment, the first elastic air bag 13 is in a negative pressure state in the process, the first elastic air bag 13 sucks air from the second elastic air bag 16 through the guide pipe 17, so that the inside of the second elastic air bag 16 is in a negative pressure state, therefore, the stop lever 12 is driven to be retracted into the jack 11 in the contraction process of the second elastic air bag 16, because air flow in an air duct enters into a space between the guide plate 9 and the side wall of the air duct, under the action of air flow impact force, the guide plate 9 drives the rotating rod 8 to rotate, at the moment, the spring telescopic rod 18 is extruded and has a restoration trend, and the two guide plates 9 are contacted, at the moment, the first elastic air bag 13 is in a maximum expansion state, at the moment, the hydraulic rod 2 continues to be expanded, at the moment, the first magnet 14 is out of contact with the second magnet 15, and the attractive force between the first magnet 14 and the second magnet 15 is gradually reduced, when the attractive force is smaller than the elastic force of the first elastic air bag 13, and the second magnet 15, and the attractive force is contracted, and the first elastic air bag 12 is pushed to be retracted into the jack 11, and the elastic air bag 16 and the stop lever 12 is pushed to be extended again from the second air bag 16 through the guide pipe; when two guide plates 9 contact each other, the air flow in the air duct can contact with the partition plate 3 only by penetrating through the air holes 10 on the guide plates 9, and in the process that the air flow penetrates through the air holes 10, the air flow and small particles carried in the air flow are rubbed with the side walls of the air holes 10, so that kinetic energy of the small particles and the air flow is converted into internal energy, impact force of the small particles and the air on the partition plate 3 is reduced, and when the kinetic energy of the small particles is reduced, the sliding speed of the small particles on the surface of the partition plate 3 is also reduced, and the effect of reducing the friction force of a thermal insulation coating on the surface of the partition plate 3 is achieved.
Before the holes are completely plugged by the partition plate 3, the partition plate 3 is not in contact with the mounting frame 1, so that the surface of the partition plate 3 is only subjected to the friction force of small particles in air flow in the process of downward movement of the partition plate 3 or approaching to the mounting frame 1, the friction force of a heat preservation coating on the surface of the partition plate 3 is reduced, the abrasion degree of the coating is reduced, and the partition plate 3 can be prevented from being uneven under the action of expansion caused by heat and contraction caused by cold, therefore, the partition plate 3 is prevented from being blocked under the combined action of the chute 4, the mounting plate 5, the electric telescopic rod 6 and the guide plate 9.
When the holes on the mounting frame 1 are completely blocked by the partition plate 3, the air flow in the air duct stops impacting the baffle plate 9, so that the baffle plate 9 stops applying pressure to the spring telescopic rod 18, the spring telescopic rod 18 gradually recovers and pushes the baffle plate 9 to rotate, the baffle plate 9 contacts with the inclined surface on the baffle plate 12 in the process of rotating the baffle plate 9, the baffle plate 12 is pushed upwards by the pushing force in the horizontal direction, and gradually retracts into the jack 11 under the action of the component force of the pushing force along the inclined surface, when the baffle plate 12 retracts into the jack 11, the baffle plate 9 passes over the bottom end of the baffle plate 12, and the baffle plate 12 extends out of the jack 11 again, so that the baffle plate 9 can be fixed, and the effect of preparing for working again is achieved; and the spring telescopic rod 18 has a restoring trend in the process of being extruded, at the moment, the output end of the spring telescopic rod 18 pushes the guide plate 9, at the moment, the guide plate 9 receives partial airflow impact force, and the guide plate 9 needs to overcome the thrust of the spring telescopic rod 18, so that the air flow rate is further reduced.
In the process of rotating the guide plate 9, the outer walls of the balls are always in contact with the guide plate 9, and as the surfaces of the balls are curved, the friction force on the side walls of the guide plate 9 is reduced in the process of rotating the guide plate 9 and pushing the ejector rods to retract into the sleeves, so that the abrasion degree of the guide plate 9 is reduced, the service life of the guide plate 9 is prolonged, the maintenance frequency is reduced, and the effect of improving the working efficiency is achieved.
Specifically, as shown in fig. 7, the first magnet 14 and the second magnet 15 are each fixedly sleeved with an insulation sleeve 20 made of aluminum silicate fiber.
Since the aluminum silicate fiber belongs to a high-temperature heat insulating material, the fire-resistant temperature is 1000 to 1790 degrees, and the temperature in the flue is generally within 800 degrees, the heat insulating sleeve 20 of the aluminum silicate fiber is sleeved on the surfaces of the first magnet 14 and the second magnet 15, so that the first magnet 14 and the second magnet 15 can be prevented from demagnetizing due to heating, and the effect of ensuring that the first magnet 14 and the second magnet 15 can be attracted to each other normally is achieved.
Specifically, as shown in fig. 3, a cross bar 21 is horizontally installed in each air hole 10, and a spoiler 22 is movably sleeved on the cross bar 21.
The bottom wall of the spoiler is provided with a groove 23, and the side wall of the groove 23 far away from one side of the cross bar 21 is inclined downwards.
When the air flow passes through the air hole 10, the spoiler 22 receives the impact force of the air flow, and at the moment, the spoiler 22 rotates around the cross rod 21, so that the impact force of the flue gas on the partition plate 3 is further reduced; because the baffle 3 gradually blocks the holes, the gas flow passing through the holes changes at any time, namely the gas flow passing through the air holes 10 also changes at any time, so the impact force received by the spoiler 22 also changes at any time, the spoiler 22 shakes up and down around the cross rod 21, in the shaking process of the spoiler 22, the spoiler is in an inclined state, at the moment, the air flow flows along the grooves 23 on the spoiler, and under the action of the inclined side walls of the grooves 23, the flowing direction of the air flow is finally changed, the impact force of the air flow on the baffle 3 is reduced again, and the effect of reducing the abrasion degree of the heat preservation coating on the surface of the baffle 3 is achieved.
Specifically, as shown in fig. 3, the inner side walls on opposite sides of the mounting frame 1 are fixedly mounted with a second mounting rod 24 in a common horizontal manner, and a loop bar 25 is rotatably sleeved on the second mounting rod 24.
The ratio of the inner diameter of the loop bar 25 to the diameter of the second mounting bar 24 is 4:1, and the ratio of the length of the second mounting bar 24 to the length of the loop bar 25 is 2:1.
during the downward movement of the partition plate 3, the air flow impacts the partition plate 3, and as the hydraulic rod 2 stretches, the power arm at the output end of the hydraulic rod 2 gradually increases, so that when the air flow impacts the partition plate 3, the partition plate 3 has a shaking tendency, and therefore, by enabling the rear wall of the partition plate 3 to be in contact with the outer wall of the sleeve rod 25, the partition plate 3 can be blocked through the sleeve rod 25, so that the shaking frequency of the partition plate 3 is reduced, and the hydraulic rod 2 is prevented from being damaged; and also can prevent the baffle plate 3 from contacting with the inner side wall of the mounting frame 1 when the vibration amplitude is too large, thereby playing a role of ensuring that the baffle plate 3 can move down normally.
Because the sleeve rod 25 with larger inner diameter is movably sleeved on the second mounting rod 24, the friction force between the sleeve rod 25 and the partition plate 3 is rolling friction in the downward movement process of the partition plate 3, the friction force born by the partition plate 3 is reduced, and the function of preventing the heat insulation coating on the surface of the partition plate 3 from being worn is realized while the shaking amplitude of the partition plate 3 is reduced; since the inner diameter of the socket rod 25 is 4 times the diameter of the second mounting rod 24 and the length of the second mounting rod 24 is 2 times the length of the socket rod 25, normal rotation of the socket rod 25 can be ensured even if the second mounting rod 24 is thermally expanded.
Specifically, as shown in fig. 5, fixing rods 26 are uniformly and fixedly installed on the side wall of the partition plate 3, protection plates 27 are fixedly installed at one ends, far away from the partition plate 3, of the plurality of fixing rods 26, and the ratio of the side area of the protection plates 27 to the side area of the partition plate 3 is 1:1.5, and the diameter of the fixing rod 26 is 5mm.
The side wall of the protection plate 27 is uniformly and fixedly provided with the inclined plates 28, the inclined plates 28 are matched with the partition plate 3, and the plurality of inclined plates 28 are connected end to end.
Since the side area of the partition plate 3 is 1.5 times that of the protection plate 27, when the protection plate 27 is mounted on the surface of the partition plate 3, most of the surface of the partition plate 3 is covered by the protection plate 27, at this time, the partition plate 3 can be protected by reducing the friction force of particles received by the edge of the partition plate 3, and the contact area between the fixing rod 26 and the partition plate 3 is small, so that the partition plate 3 is not greatly deformed even if the fixing rod 26 deforms due to expansion and contraction, and therefore, the partition plate 3 and the mounting frame 1 can be ensured not to be jammed.
When the flue gas flows to the baffle plate 3, the flue gas firstly impacts the surface of the baffle plate 27, and the flue gas flows along the surface of the baffle plate 27, so that the flue gas is converted from the direction initially perpendicular to the baffle plate 3 to the direction parallel to the surface of the baffle plate 3, and when the flue gas is separated from the baffle plate 27, the air flow flows along the surface of the inclined plate 28, and the direction of the air flow is changed at the moment, namely: the air flow which is out of contact with the shielding plate 27 has a tendency to flow away from the partition plate 3, and therefore, the part of the air flow can strike the air flow which directly impacts the side wall of the partition plate 3, thereby reducing the impact force of the air flow on the surface of the partition plate 3 and playing a role in protecting the heat-insulating coating.
Working principle: when the air duct is required to be sealed, the hydraulic rod 2 is started first, the output end of the hydraulic rod 2 drives the partition plate 3 to move downwards, the partition plate 3 gradually moves to the right front of the hole in the process, when the hydraulic rod 2 moves downwards to the maximum extent, the electric telescopic rod 6 is started, the electric telescopic rod 6 stretches and drives the mounting plate 5 to move along the sliding groove 4, in the process, the mounting plate 5 drives the hydraulic rod 2 and the partition plate 3 mounted on the output end of the hydraulic rod 2 to move towards the direction of the hole, when the electric telescopic rod 6 stretches to the maximum extent in the mounting process, the side wall of the partition plate 3 is attached to the inner side wall of the mounting frame 1, namely, the partition plate 3 covers the surface of the hole, so that the hole can be plugged.
When the hydraulic rod 2 works, the first magnet 14 and the second magnet 15 are adsorbed together, at this time, the output end of the hydraulic rod 2 pulls the first elastic air bag 13 downwards, at this time, the volume of the first elastic air bag 13 increases, the first elastic air bag 13 is in a negative pressure state in the process, therefore, the first elastic air bag 13 sucks air from the second elastic air bag 16 through the conduit 17, the interior of the second elastic air bag 16 is in a negative pressure state, therefore, the stop lever 12 is driven to retract into the jack 11 in the process of shrinking the second elastic air bag 16, and because air flow in the air channel enters into a space between the guide plate 9 and the side wall of the air channel, the guide plate 9 drives the rotating rod 8 to rotate under the action of air flow impact force, and when the two guide plates 9 are contacted with each other, the air flow in the air channel needs to pass through the air hole 10 on the guide plate 9 to be contacted with the partition plate 3.
When the hole on the installation frame 1 is completely blocked by the partition plate 3, the air flow in the air duct stops impacting the baffle plate 9, so that the baffle plate 9 stops applying pressure to the spring telescopic rod 18, at the moment, the spring telescopic rod 18 gradually recovers and pushes the baffle plate 9 to rotate, in the process of rotating the baffle plate 9, the baffle plate 9 contacts with the inclined plane on the baffle plate 12, at the moment, the baffle plate 12 is pushed by the pushing force in the horizontal direction, and under the action of the component force of the pushing force along the inclined plane, the baffle plate 12 starts to move upwards and gradually retract into the jack 11, and when the baffle plate 12 retracts into the jack 11, the baffle plate 9 passes over the bottom end of the baffle plate 12, and at the moment, the baffle plate 12 extends out of the jack 11 again, so that the baffle plate 9 can be fixed.
When the air flow passes through the air hole 10, the spoiler 22 receives the impact force of the air flow, and at the moment, the spoiler 22 rotates around the cross rod 21, so that the impact force of the flue gas on the partition plate 3 is further reduced; because the baffle 3 gradually blocks the holes, the amount of smoke passing through the holes changes at any time, namely the amount of smoke passing through the air holes 10 also changes at any time, so the impact force received by the spoiler 22 also changes at any time, the spoiler 22 shakes up and down around the cross rod 21, in the shaking process of the spoiler 22, the spoiler is in an inclined state, at the moment, the air flows along the grooves 23 on the spoiler, and the flowing direction of the air flow is finally changed under the action of the inclined side walls of the grooves 23.
During the downward movement of the partition plate 3, the air flow impacts the partition plate 3, and as the hydraulic rod 2 stretches, the power arm at the output end of the hydraulic rod 2 gradually increases, so that when the air flow impacts the partition plate 3, the partition plate 3 has a shaking tendency, and therefore, by enabling the rear wall of the partition plate 3 to be in contact with the outer wall of the sleeve rod 25, the partition plate 3 can be blocked through the sleeve rod 25, so that the shaking frequency of the partition plate 3 is reduced, and the hydraulic rod 2 is prevented from being damaged; and can prevent the baffle 3 because of shaking the too big time of range and contact with the inside wall of installing frame 1 equally, in baffle 3 move down the in-process, the frictional force between loop bar 25 and the baffle 3 is rolling friction, has reduced the frictional force that baffle 3 received.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (8)
1. A pipe heating furnace flue duct baffle anti-clogging device which characterized in that: comprises a mounting frame (1) with holes on the front wall;
the plugging piece is used for plugging the hole; the device comprises a hydraulic rod (2) arranged on the top wall of a mounting frame (1), wherein a baffle plate (3) is fixedly arranged at the output end of the hydraulic rod (2), and heat-insulating coatings are coated on the surfaces of the baffle plate (3) and the mounting frame (1);
the folding mechanism is used for driving the partition plate (3) to move along the horizontal direction, so that the partition plate (3) is used for blocking holes in the mounting frame (1), the partition plate (3) is not required to be contacted with the mounting frame (1) before the partition plate (3) is used for blocking the holes, the friction force born by the partition plate (3) is reduced, the abrasion of the heat-insulating coating is prevented, and the deformation and the jam of the partition plate (3) due to thermal expansion and cold contraction are prevented; the hydraulic rod (2) is fixedly arranged on the mounting plate (5), an electric telescopic rod (6) is fixedly arranged on the top wall of the mounting frame (1), and the output end of the electric telescopic rod (6) is fixedly connected with the side wall of the mounting plate (5);
the protection mechanism is used for reducing the impact force of smoke received by the partition plate (3), thereby reducing the friction force between particles in the smoke and the heat insulation coating, reducing the wear degree of the heat insulation coating, and reducing the deformation probability of the partition plate (3), wherein the front wall of the installation frame (1) is horizontally and symmetrically and fixedly provided with a fixed plate (7), the bottom wall of the fixed plate (7) is vertically and rotatably provided with a rotating rod (8), the rotating rod (8) is fixedly provided with a guide plate (9) with a cambered surface on the side wall, the guide plate (9) is uniformly provided with air holes (10), and the installation frame (1) is provided with a control mechanism for driving the rotating rod (8) to rotate;
the control mechanism comprises jacks (11) formed in the top walls of the two fixing plates (7), stop rods (12) are vertically and movably inserted in the jacks (11), side walls of adjacent sides of the two stop rods (12) are inclined planes, and a driving mechanism matched with the baffle is arranged on the mounting frame (1);
the driving mechanism comprises a first elastic air bag (13) fixedly arranged on the inner top wall of the mounting frame (1), a first magnet (14) is fixedly arranged on the bottom wall of the first elastic air bag (13), and a second magnet (15) which is mutually attracted with the first elastic air bag (13) is fixedly arranged on the output end of the hydraulic rod (2);
a second elastic air bag (16) is fixedly arranged in the jack (11), and a guide pipe (17) communicated with the air inlet of the second elastic air bag (16) is fixedly arranged on the air inlet of the first elastic air bag (13);
the side wall of the installation frame (1) is fixedly provided with a spring telescopic rod (18) matched with the guide plate (9), and the output end of the spring telescopic rod (18) is fixedly provided with a steel ball (19).
2. The smoke duct baffle anti-blocking device of the seed tube type heating furnace according to claim 1, wherein: and heat preservation sleeves (20) made of aluminum silicate fiber materials are fixedly sleeved outside the first magnet (14) and the second magnet (15).
3. The smoke duct baffle anti-blocking device of the seed tube type heating furnace according to claim 2, wherein: a cross rod (21) is horizontally arranged in each air hole (10), and a spoiler (22) is movably sleeved on each cross rod (21).
4. A flue gas duct baffle anti-clogging device for a seed tube type heating furnace according to claim 3, wherein: a groove (23) is formed in the bottom wall of the spoiler, and the side wall, far away from one side of the transverse rod (21), of the groove (23) is inclined downwards.
5. The smoke duct baffle anti-blocking device of the seed tube type heating furnace according to claim 4, wherein: the inner side walls of the opposite sides of the mounting frame (1) are fixedly and horizontally provided with second mounting rods (24), and the second mounting rods (24) are rotatably sleeved with loop bars (25).
6. The smoke duct baffle anti-blocking device of the seed tube type heating furnace according to claim 5, wherein: the ratio of the inner diameter of the loop bar (25) to the diameter of the second mounting bar (24) is 4:1, and the ratio of the length of the second mounting rod (24) to the length of the loop rod (25) is 2:1.
7. the smoke duct baffle anti-blocking device of the seed tube type heating furnace of claim 6, wherein: the side wall of the partition plate (3) is uniformly and fixedly provided with fixing rods (26), one ends, far away from the partition plate (3), of the fixing rods (26) are fixedly provided with protection plates (27) together, and the ratio of the side area of each protection plate (27) to the side area of the partition plate (3) is 1:1.5, and the diameter of the fixing rod (26) is 5mm.
8. The smoke duct baffle anti-blocking device of the seed tube type heating furnace according to claim 7, wherein: the side wall of the protection plate (27) is uniformly and fixedly provided with the inclined plates (28), the inclined plates (28) are matched with the partition plate (3), and a plurality of inclined plates (28) are connected end to end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211229578.5A CN115574340B (en) | 2022-10-08 | 2022-10-08 | Anti-blocking device for smoke duct baffle of tubular heating furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211229578.5A CN115574340B (en) | 2022-10-08 | 2022-10-08 | Anti-blocking device for smoke duct baffle of tubular heating furnace |
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| Publication Number | Publication Date |
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| CN115574340A CN115574340A (en) | 2023-01-06 |
| CN115574340B true CN115574340B (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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|---|---|---|---|---|
| GB713753A (en) * | 1951-04-06 | 1954-08-18 | Andrew Campbell | Improvements in boiler dampers |
| USRE31256E (en) * | 1978-01-18 | 1983-05-31 | Automatic damper means and controls therefor | |
| JPH0732348U (en) * | 1993-11-16 | 1995-06-16 | 石川島播磨重工業株式会社 | Guillotine damper for exhaust gas duct |
| CN212841659U (en) * | 2020-08-03 | 2021-03-30 | 山东国舜建设集团有限公司 | Anti-blocking adjustable flue hole plate device and flue equipment |
| CN215336430U (en) * | 2020-12-07 | 2021-12-28 | 无锡华光电力工程有限公司 | Boiler air flue anti-blocking structure |
| CN215372536U (en) * | 2021-02-04 | 2021-12-31 | 华电新疆发电有限公司昌吉分公司 | Anti-blocking device for boiler flue |
| CN216557181U (en) * | 2021-10-28 | 2022-05-17 | 华能武汉发电有限责任公司 | Power plant flue gas baffle with remove cigarette ash function |
-
2022
- 2022-10-08 CN CN202211229578.5A patent/CN115574340B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB713753A (en) * | 1951-04-06 | 1954-08-18 | Andrew Campbell | Improvements in boiler dampers |
| USRE31256E (en) * | 1978-01-18 | 1983-05-31 | Automatic damper means and controls therefor | |
| JPH0732348U (en) * | 1993-11-16 | 1995-06-16 | 石川島播磨重工業株式会社 | Guillotine damper for exhaust gas duct |
| CN212841659U (en) * | 2020-08-03 | 2021-03-30 | 山东国舜建设集团有限公司 | Anti-blocking adjustable flue hole plate device and flue equipment |
| CN215336430U (en) * | 2020-12-07 | 2021-12-28 | 无锡华光电力工程有限公司 | Boiler air flue anti-blocking structure |
| CN215372536U (en) * | 2021-02-04 | 2021-12-31 | 华电新疆发电有限公司昌吉分公司 | Anti-blocking device for boiler flue |
| CN216557181U (en) * | 2021-10-28 | 2022-05-17 | 华能武汉发电有限责任公司 | Power plant flue gas baffle with remove cigarette ash function |
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| Publication number | Publication date |
|---|---|
| CN115574340A (en) | 2023-01-06 |
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