CN118417057B - Dust removing device for heat source plant - Google Patents
Dust removing device for heat source plant Download PDFInfo
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- CN118417057B CN118417057B CN202410876199.8A CN202410876199A CN118417057B CN 118417057 B CN118417057 B CN 118417057B CN 202410876199 A CN202410876199 A CN 202410876199A CN 118417057 B CN118417057 B CN 118417057B
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- 239000000428 dust Substances 0.000 title claims abstract description 150
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 238000013016 damping Methods 0.000 claims abstract description 35
- 239000004744 fabric Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 3
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of power plant dust removal, and particularly relates to a dust removal device for a heat source plant, which comprises a dust removal chamber; an electrostatic dust removal module; a cloth bag dust removing module; the electrostatic dust collection module comprises a corona electrode, a dust collection electrode, a vibrating mechanism and a damping mechanism. The damping mechanism can adjust the motion amplitude of the dust collecting electrode, when the rapping device knocks the dust collecting electrode, the motion damping of the dust collecting electrode can be reduced, so that the dust collecting electrode can generate enough vibration amplitude to ensure that dust is vibrated down, and when the knocking is finished, the motion damping of the dust collecting electrode can be increased, so that the dust collecting electrode is quickly restored to a static state to ensure the electrostatic dust collection efficiency; in addition, the damping mechanism can completely fix the dust collecting electrode, so that the shaking of the dust collecting electrode caused by air flow disturbance in the dust removing process is avoided.
Description
Technical Field
The invention belongs to the technical field of power plant dust removal, and particularly relates to a dust removal device for a heat source plant.
Background
The heat source factory generally needs to carry out dust removal treatment on waste gas generated by combustion, and the electric bag dust collector is dust collection equipment integrated with an electrostatic dust collection device and a cloth bag dust collection device, and has the advantages of high through flow efficiency of the electrostatic dust collector and more thorough filtration of the cloth bag dust collector. Wherein electrostatic precipitator utilizes the electric field to adsorb the dust in the waste gas on the dust collecting plate, then shakes the dust on the dust collecting plate through rapping device and falls into the dust hopper, and this in-process is in order to make the dust on the dust collecting plate drop fully, and the dust collecting plate adopts movable mounting mode generally, can produce when making it receive beating and rock. However, in actual use, the integrated plate needs to be automatically stopped after being rapped for a long time, and the shaking of the integrated plate can cause the change of the distance between the integrated plate and the corona electrode, so that the dust removal performance is affected. Meanwhile, as the cloth bag dust collector needs to continuously provide suction, the suction can always cause high-speed flowing air flow in the dust collector, and the air flow can cause unnecessary shaking of the dust collecting plate to influence the electrostatic dust collection effect.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, an object of the present invention is to provide a dust collector for a heat source plant, which can ensure a certain degree of freedom of movement of a dust collecting electrode and prevent excessive shaking of the dust collecting electrode.
To achieve the above and other related objects, the present invention provides a dust removing apparatus for a heat source plant, comprising:
The dust removal chamber comprises a first chamber and a second chamber, a shared wall is arranged between the first chamber and the second chamber, the first chamber is provided with an air inlet, the second chamber is provided with an air outlet, and the air outlet is provided with a fan;
The electrostatic dust collection module is arranged in the first chamber and is close to the air inlet;
The cloth bag dust removing module comprises a plurality of cloth bag units, each cloth bag unit is mounted on the common wall, the outer wall of each cloth bag unit is exposed in the first cavity, and the inner cavity of each cloth bag unit is communicated with the second cavity;
the electrostatic dust collection module comprises a corona electrode, a dust collection electrode, a vibrating mechanism and a damping mechanism, wherein the corona electrode is communicated with a power supply, the dust collection electrode is grounded, the vibrating mechanism is assembled to be capable of performing a knocking action on the dust collection electrode so as to enable the dust collection electrode to vibrate, and the damping mechanism is assembled to be capable of adjusting vibration damping of the dust collection electrode.
In an alternative embodiment of the present invention, a fixed support is disposed in the dust removing chamber, the dust collecting electrode is suspended on the fixed support by at least two connecting rods, the connecting rods are parallel and equal in length, two ends of the connecting rod are respectively hinged with the dust collecting electrode and the fixed support, and the hinge shafts are all disposed along the first direction.
In an alternative embodiment of the present invention, the rapping mechanism comprises a driving shaft, a driving pin and a pendulum, wherein the driving shaft is arranged along the first direction, the driving shaft is rotatably arranged relative to the fixed support, the driving pin is eccentrically and fixedly arranged relative to the driving shaft through a swinging arm, the pendulum is hinged with the fixed support, and one end of the pendulum is positioned on a movement path when the driving pin rotates along with the driving shaft, so that the pendulum can be lifted and released during the rotation of the driving pin along with the driving shaft; the dust collecting pole is provided with a baffle plate matched with the pendulum bob, and when the pendulum bob is released by the driving pin, the pendulum bob can strike the baffle plate so as to enable the dust collecting pole to vibrate.
In an optional embodiment of the present invention, the damping mechanism includes an oil cylinder, a piston and a piston rod, where the oil cylinder is fixedly connected with the fixed support, the piston is movably disposed in the oil cylinder, the piston rod is fixedly connected with the piston, and two ends of the piston rod respectively penetrate through the outside of the oil cylinder; the piston rod is arranged along the horizontal direction, and the axial direction of the piston rod is perpendicular to the first direction; the dust collecting electrode and the piston rod are relatively fixed in the axial direction of the piston rod, and the dust collecting electrode is movably arranged relative to the piston rod along the vertical direction; the piston divides the oil cylinder into two oil cavities, a flow passage is arranged between the two oil cavities, an adjusting valve is arranged on the flow passage, and the adjusting valve is assembled to be capable of adjusting the size of the through flow section of the flow passage.
In an alternative embodiment of the invention, the regulating valve comprises a valve casing and a valve core, wherein a valve hole for accommodating the valve core is formed in the valve casing, and the valve core is rotatably arranged in the valve hole; the inner wall of the valve hole is provided with a first groove and a second groove, the first groove and the second groove are arranged along the length direction of the valve hole, and the first groove and the second groove are arranged at intervals along the circumferential direction of the valve hole; the valve housing is also provided with a first oil hole communicated with the first groove and a second oil hole communicated with the second groove, and the first oil hole and the second oil hole are respectively communicated with the two oil cavities through pipelines; the valve core is provided with at least two arc grooves with different depths, the arc grooves are arranged at intervals along the axial direction of the valve core, the arc grooves are arranged at a certain angle in a staggered manner along the circumferential direction of the valve core, a plurality of target positions exist on the valve core, when the valve core is positioned at each target position, only one arc groove is arranged to communicate the first groove with the second groove, and when the valve core is positioned at different target positions, the arc grooves communicated with the first groove and the second groove are also different.
In an alternative embodiment of the invention, the spool has a disconnected position, and no arcuate slot is capable of communicating the first and second grooves when the spool is in the disconnected position.
In an alternative embodiment of the present invention, the arcuate slot comprises a first arcuate slot and a second arcuate slot, wherein the depth of the first arcuate slot is greater than the depth of the second arcuate slot; the first and second arcuate slots are configured such that when the spool rotates within a first angular range, the first and second slots communicate only through the first arcuate slot, when the spool rotates within a second angular range, the first and second slots communicate only through the second arcuate slot, and when the spool rotates within a third angular range, the first and second slots are disconnected.
In an alternative embodiment of the invention, a linkage is provided between the drive shaft and the spool, the linkage being configured such that when the drive shaft is rotated to an angle that releases the pendulum, the spool is rotated to the first angular range, and when the drive shaft continues to be rotated by a preset angle, the spool is sequentially rotated to the second angular range and the third angular range.
In an alternative embodiment of the invention, the linkage mechanism comprises a driving gear fixedly connected with the driving shaft and a driven gear fixedly connected with the valve core, and the driving gear and the driven gear are meshed with each other.
In an alternative embodiment of the invention, the collecting electrode comprises a plurality of layers of plate-like structures arranged parallel to each other, and the corona electrode is located between the layers of the collecting electrode.
The invention has the technical effects that: the damping mechanism can adjust the motion amplitude of the dust collecting electrode, when the rapping device knocks the dust collecting electrode, the motion damping of the dust collecting electrode can be reduced, so that the dust collecting electrode can generate enough vibration amplitude to ensure that dust is vibrated down, and when the knocking is finished, the motion damping of the dust collecting electrode can be increased, so that the dust collecting electrode is quickly restored to a static state to ensure the electrostatic dust collection efficiency; in addition, the damping mechanism can completely fix the dust collecting electrode, so that the shaking of the dust collecting electrode caused by air flow disturbance in the dust removing process is avoided.
Drawings
FIG. 1 is a schematic diagram of a dust extraction apparatus for a heat source plant provided by an embodiment of the present invention;
FIG. 2 is a perspective view of a partially assembled construction of a dust collector provided by an embodiment of the present invention;
FIG. 3 is an enlarged partial view of I of FIG. 2;
FIG. 4 is a perspective view of a damping mechanism provided by an embodiment of the present invention;
FIG. 5 is a front view of a damping mechanism provided by an embodiment of the present invention;
FIG. 6 is a B-B cross-sectional view of FIG. 5;
FIG. 7 is a cross-sectional view A-A of FIG. 5;
FIG. 8 is a C-C cross-sectional view of FIG. 7;
FIG. 9 is a D-D sectional view of FIG. 7;
FIG. 10 is a cross-sectional view of a regulator valve provided in an embodiment of the present invention in one state;
FIG. 11 is a cross-sectional view of a regulator valve provided in an embodiment of the present invention in another state;
Reference numerals illustrate: 100. a dust removal chamber; 110. a first chamber; 120. a second chamber; 130. a common wall; 140. an air inlet; 150. an air outlet; 160. a blower; 200. an electrostatic dust removal module; 300. a cloth bag dust removing module; 310. a cloth bag unit; 400. a fixed bracket; 10. a dust collecting electrode; 11. a connecting rod; 12. a baffle; 13. a shifting fork; 20. a corona electrode; 30. a drive shaft; 31. a drive pin; 32. a drive gear; 40. a rapping mechanism; 41. a pendulum; 50. a damping mechanism; 51. an oil cylinder; 52. a piston; 53. a piston rod; 54. a regulating valve; 541. a valve housing; 542. a valve core; 543. a first slot; 544. a second groove; 545. a first arc-shaped groove; 546. a second arc-shaped groove; 55. a driven gear; 60. and a motor.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the illustrations, not according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
Referring to fig. 1, a dust removing apparatus for a heat source plant according to an embodiment of the present invention includes a dust removing chamber 100, an electrostatic dust removing module 200, and a bag-type dust removing module 300; the dust removal chamber 100 comprises a first chamber 110 and a second chamber 120, a shared wall 130 is arranged between the first chamber 110 and the second chamber 120, the first chamber 110 is provided with an air inlet 140, the second chamber 120 is provided with an air outlet 150, and the air outlet 150 is provided with a fan 160; the electrostatic dust collection module 200 is installed in the first chamber 110 and is disposed near the air inlet 140; the bag-type dust removing module 300 includes a plurality of bag-type units 310, each bag-type unit 310 is mounted on the common wall 130, an outer wall of the bag-type unit 310 is exposed in the first chamber 110, and an inner cavity of the bag-type unit 310 is communicated with the second chamber 120.
In a specific embodiment, the boiler exhaust enters from the air inlet 140, most of the dust in the exhaust is blocked by the electrostatic dust collection module 200, a small amount of residual dust is thoroughly filtered out when passing through the bag-type dust collection module 300, and the filtered gas is discharged from the air outlet 150.
Referring to fig. 1-3, the electrostatic precipitator module 200 comprises a corona electrode 20, a collecting electrode 10, a rapping mechanism 40 and a damping mechanism 50, wherein the corona electrode 20 is in communication with a power source, the collecting electrode 10 is grounded, the rapping mechanism 40 is configured to perform a rapping action on the collecting electrode 10 so as to vibrate the collecting electrode 10, and the damping mechanism 50 is configured to adjust vibration damping of the collecting electrode 10. In an alternative embodiment of the present invention, the collecting electrode 10 includes a plurality of layers of plate-like structures disposed parallel to each other, and the corona electrode 20 is disposed between the layers of the collecting electrode 10.
It should be appreciated that the damping mechanism 50 of the present invention is capable of adjusting the movement amplitude of the collecting electrode 10, and reducing the movement damping of the collecting electrode 10 when the rapping device rapps the collecting electrode 10, so that the collecting electrode 10 can generate sufficient vibration amplitude to ensure that dust is shaken off; when the knocking is finished, the motion damping of the dust collecting electrode 10 can be increased, so that the dust collecting electrode is quickly restored to a static state, and the electrostatic dust collection efficiency is ensured; in addition, the damping mechanism 50 can also completely fix the dust collecting electrode 10, so that the dust collecting electrode 10 is prevented from shaking due to air flow disturbance in the dust removing process.
Referring to fig. 2, in an alternative embodiment of the present invention, a fixing bracket 400 is disposed in the dust chamber 100, the dust collecting electrode 10 is suspended from the fixing bracket 400 by at least two connecting rods 11, the connecting rods 11 are parallel and equal in length, two ends of the connecting rod 11 are respectively hinged to the dust collecting electrode 10 and the fixing bracket 400, and the hinge shafts are all disposed along the first direction. The dust collecting pole 10, the connecting rod 11 and the fixed bracket 400 form a parallel four-connecting rod 11 mechanism, so that the dust collecting pole 10 can swing while keeping a fixed posture. It should be understood that the first direction is a direction perpendicular to the plate surface of the dust collecting electrode 10, and since all hinge shafts are disposed along the first direction, the swing of the dust collecting electrode 10 perpendicular to the plate surface can be prevented to the maximum extent, and thus, the large floating of the gap between the dust collecting electrode 10 and the corona electrode 20 can be prevented.
Referring to fig. 3, in an alternative embodiment of the present invention, the rapping mechanism 40 comprises a driving shaft 30, a driving pin 31 and a pendulum 41, wherein the driving shaft 30 is disposed along the first direction, and the driving shaft 30 is rotatably disposed with respect to the fixed support 400, and the driving shaft 30 is connected to a motor 60 to drive the driving shaft 30 to rotate; the driving pin 31 is eccentrically and fixedly arranged relative to the driving shaft 30 through a swing arm, the pendulum 41 is hinged with the fixed bracket 400, and one end of the pendulum 41 is positioned on a movement path when the driving pin 31 rotates along with the driving shaft 30, so that the pendulum 41 can be lifted and released in the process that the driving pin 31 rotates along with the driving shaft 30; the dust collecting pole 10 is provided with a baffle 12 matched with the pendulum 41, and when the pendulum 41 is released by the driving pin 31, the pendulum 41 can strike the baffle 12 so as to enable the dust collecting pole 10 to vibrate.
Taking the view angle shown in fig. 3 as an example, the driving shaft 30 rotates in the counterclockwise direction, during the rotation process of the driving shaft 30, the driving pin 31 can stir the handle end of the pendulum 41, so that the pendulum 41 is lifted up to the position shown in fig. 3, when the driving shaft 30 continues to rotate counterclockwise from the position shown in fig. 3, the driving pin 31 is separated from the handle end of the pendulum 41, and at this time, the pendulum 41 swings downwards under the action of self gravity, so as to impact the baffle 12.
Referring to fig. 3-6, in an alternative embodiment of the present invention, the damping mechanism 50 includes an oil cylinder 51, a piston 52 and a piston rod 53, wherein the oil cylinder 51 is fixedly connected with the fixed bracket 400, the piston 52 is movably disposed in the oil cylinder 51, the piston rod 53 is fixedly connected with the piston 52, and two ends of the piston rod 53 respectively penetrate through the outside of the oil cylinder 51; the piston rod 53 is disposed in a horizontal direction, and an axial direction of the piston rod 53 is perpendicular to the first direction; the dust collecting electrode 10 and the piston rod 53 are relatively fixed in the axial direction of the piston rod 53, and the dust collecting electrode 10 is movably arranged relative to the piston rod 53 along the vertical direction, specifically, a shifting fork 13 is arranged on the dust collecting electrode 10, and the shifting fork 13 is provided with a U-shaped groove matched with the piston rod 53, so that the shifting fork 13 can move up and down relative to the piston rod 53; the piston 52 divides the oil cylinder 51 into two oil chambers, a flow passage is arranged between the two oil chambers, a regulating valve 54 is arranged on the flow passage, and the regulating valve 54 is assembled to be capable of regulating the size of the through flow section of the flow passage.
It should be appreciated that by adjusting the size of the through-flow cross section of the flow passage, the movement speed of the piston 52 within the cylinder 51 can be adjusted, thereby adjusting the movement damping of the collector electrode 10.
Referring to fig. 7-11, in an alternative embodiment of the present invention, the adjusting valve 54 includes a valve housing 541 and a valve core 542, wherein a valve hole for accommodating the valve core 542 is formed in the valve housing 541, and the valve core 542 is rotatably disposed in the valve hole; a first slot 543 and a second slot 544 are arranged on the inner wall of the valve hole, the first slot 543 and the second slot 544 are arranged along the length direction of the valve hole, and the first slot 543 and the second slot 544 are arranged at intervals along the circumferential direction of the valve hole; the valve housing 541 is further provided with a first oil hole communicating with the first groove 543 and a second oil hole communicating with the second groove 544, and the first oil hole and the second oil hole are respectively communicated with the two oil chambers through pipelines; the valve core 542 is provided with at least two arc-shaped grooves with different depths, each arc-shaped groove is arranged along the axial direction of the valve core 542 at intervals, each arc-shaped groove is arranged along the circumferential direction of the valve core 542 at a certain angle in a staggered manner, the valve core 542 is provided with a plurality of target positions, when the valve core 542 is positioned at each target position, only one arc-shaped groove is arranged to communicate the first groove 543 with the second groove 544, and when the valve core 542 is positioned at different target positions, the arc-shaped grooves communicated with the first groove 543 and the second groove 544 are also different.
Further, referring to fig. 11, in an alternative embodiment of the present invention, the spool 542 has a disconnected position, and when the spool 542 is located in the disconnected position, no arc-shaped slot can connect the first slot 543 and the second slot 544.
Referring to fig. 7-11, in an alternative embodiment of the present invention, the arcuate slot includes a first arcuate slot 545 and a second arcuate slot 546, wherein the depth of the first arcuate slot 545 is greater than the depth of the second arcuate slot 546; the first arc groove 545 and the second arc groove 546 are configured such that, when the spool 542 rotates within a first angle range, the first slot 543 and the second slot 544 communicate only through the first arc groove 545, when the spool 542 rotates within a second angle range, the first slot 543 and the second slot 544 communicate only through the second arc groove 546, and when the spool 542 rotates within a third angle range, the first slot 543 and the second slot 544 are disconnected.
Referring to fig. 3, in an alternative embodiment of the present invention, a linkage mechanism is provided between the driving shaft 30 and the valve core 542, and the linkage mechanism is configured such that, when the driving shaft 30 rotates to an angle for releasing the pendulum 41, the valve core 542 rotates to the first angle range, and when the driving shaft 30 continues to rotate by a preset angle, the valve core 542 rotates to the second angle range and the third angle range in sequence. In an alternative embodiment of the present invention, the linkage mechanism includes a driving gear 32 fixedly connected to the driving shaft 30, and a driven gear 55 fixedly connected to the spool 542, and the driving gear 32 is meshed with the driven gear 55.
The working principle of the damping mechanism 50 is described in detail below with reference to fig. 3, 7-11:
when the driving shaft 30 rotates to the state shown in fig. 3, the valve core 542 is in the state shown in fig. 7-9, at this time, the first groove 543 and the second groove 544 are communicated only through the first arc groove 545, and the flow resistance of the oil in the flow passage is small because the through-flow section of the first arc groove 545 is large, at this time, the damping mechanism 50 has almost no restraining effect on the dust collecting electrode 10, and the dust collecting electrode 10 can swing freely after the pendulum 41 falls down; with the rotation of the driving shaft 30, the valve core 542 reaches the state shown in fig. 10, the broken line in the drawing is a second arc groove 546, at this time, the first groove 543 and the second groove 544 are only communicated through the second arc groove 546, and since the through flow section of the second arc groove 546 is smaller, the flow resistance of the oil in the flow channel is larger, and the dust collecting pole 10 is restrained by the piston rod 53 and can be quickly decelerated and restored to the static state; as the drive shaft 30 continues to rotate, the spool 542 reaches the state shown in fig. 11, and at this time, neither the first arc groove 545 nor the second arc groove 546 connects the first groove 543 to the second groove 544, so that the flow passage is disconnected, the piston 52 is not moved, and the piston rod 53 can prevent the dust collecting electrode 10 from moving, and the dust collecting electrode 10 is held in a fixed state.
In summary, the damping mechanism 50 of the present invention can adjust the movement amplitude of the dust collecting electrode 10, when the rapping device knocks the dust collecting electrode 10, the movement damping of the dust collecting electrode 10 can be reduced, so that the dust collecting electrode 10 can generate enough vibration amplitude to ensure that dust is vibrated down, and when the knocking is finished, the movement damping of the dust collecting electrode 10 can be increased, so that the dust collecting electrode 10 can be quickly restored to a static state, and the electrostatic dust collection efficiency is ensured; in addition, the damping mechanism 50 can also completely fix the dust collecting electrode 10, so that the dust collecting electrode 10 is prevented from shaking due to air flow disturbance in the dust removing process.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
In the description herein, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, components, methods, components, materials, parts, and so forth. In other instances, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.
Claims (7)
1. A dust removal apparatus for a heat source plant, comprising:
The dust removal chamber (100), the dust removal chamber (100) comprises a first chamber (110) and a second chamber (120), a shared wall (130) is arranged between the first chamber (110) and the second chamber (120), the first chamber (110) is provided with an air inlet (140), the second chamber (120) is provided with an air outlet (150), and the air outlet (150) is provided with a fan (160);
The electrostatic dust collection module (200) is arranged in the first chamber (110) and is close to the air inlet (140);
the cloth bag dust removing module (300) comprises a plurality of cloth bag units (310), each cloth bag unit (310) is installed on the common wall (130), the outer wall of each cloth bag unit (310) is exposed in the first chamber (110), and the inner cavity of each cloth bag unit (310) is communicated with the second chamber (120);
The electrostatic dust collection module (200) comprises a corona electrode (20), a dust collection electrode (10), a rapping mechanism (40) and a damping mechanism (50), wherein the corona electrode (20) is communicated with a power supply, the dust collection electrode (10) is grounded, the rapping mechanism (40) is assembled to be capable of performing a rapping action on the dust collection electrode (10) so as to enable the dust collection electrode (10) to vibrate, and the damping mechanism (50) is assembled to be capable of adjusting vibration damping of the dust collection electrode (10);
A fixed support (400) is arranged in the dust removal chamber (100), the dust collection electrode (10) is suspended on the fixed support (400) through at least two connecting rods (11), the connecting rods (11) are parallel and equal in length, two ends of each connecting rod (11) are respectively hinged with the dust collection electrode (10) and the fixed support (400), and the hinged shafts are all arranged along a first direction;
The vibrating mechanism (40) comprises a driving shaft (30), a driving pin (31) and a pendulum bob (41), wherein the driving shaft (30) is arranged along the first direction, the driving shaft (30) is rotatably arranged relative to the fixed support (400), the driving pin (31) is eccentrically and fixedly arranged relative to the driving shaft (30) through a swinging arm, the pendulum bob (41) is hinged with the fixed support (400), and one end of the pendulum bob (41) is positioned on a movement path when the driving pin (31) rotates along with the driving shaft (30), so that the driving pin (31) can lift and release the pendulum bob (41) in the rotation process along with the driving shaft (30); a baffle plate (12) matched with the pendulum bob (41) is arranged on the dust collecting electrode (10), and when the pendulum bob (41) is released by the driving pin (31), the pendulum bob (41) can strike the baffle plate (12) so as to enable the dust collecting electrode (10) to vibrate;
The damping mechanism (50) comprises an oil cylinder (51), a piston (52) and a piston rod (53), wherein the oil cylinder (51) is fixedly connected with the fixed support (400), the piston (52) is movably arranged in the oil cylinder (51), the piston rod (53) is fixedly connected with the piston (52), and two ends of the piston rod (53) respectively penetrate through the outside of the oil cylinder (51); the piston rod (53) is arranged along the horizontal direction, and the axial direction of the piston rod (53) is perpendicular to the first direction; the dust collecting electrode (10) and the piston rod (53) are relatively fixed in the axial direction of the piston rod (53), and the dust collecting electrode (10) is movably arranged relative to the piston rod (53) along the vertical direction; the piston (52) divides the oil cylinder (51) into two oil cavities, a flow passage is arranged between the two oil cavities, an adjusting valve (54) is arranged on the flow passage, and the adjusting valve (54) is assembled to be capable of adjusting the size of the through flow section of the flow passage.
2. The dust removal apparatus for a heat source plant according to claim 1, wherein the regulating valve (54) includes a valve housing (541) and a valve cartridge (542), a valve hole for accommodating the valve cartridge (542) is provided in the valve housing (541), and the valve cartridge (542) is rotatably provided in the valve hole; a first groove (543) and a second groove (544) are formed in the inner wall of the valve hole, the first groove (543) and the second groove (544) are arranged along the length direction of the valve hole, and the first groove (543) and the second groove (544) are arranged at intervals along the circumferential direction of the valve hole; the valve casing (541) is further provided with a first oil hole communicated with the first groove (543) and a second oil hole communicated with the second groove (544), and the first oil hole and the second oil hole are respectively communicated with the two oil cavities through pipelines; the valve core (542) is provided with at least two arc grooves with different depths, the arc grooves are arranged along the axial direction of the valve core (542) at intervals, the arc grooves are arranged along the circumferential direction of the valve core (542) in a staggered manner by a certain angle, the valve core (542) is provided with a plurality of target positions, when the valve core (542) is positioned at each target position, only one arc groove is arranged to communicate the first groove (543) with the second groove (544), and the valve core (542) is positioned at different target positions to communicate the first groove (543) with the second groove (544) which are also different.
3. The dust removal device for a heat source plant according to claim 2, wherein the spool (542) has a disconnected position, and no arc-shaped groove is capable of communicating the first groove (543) with the second groove (544) when the spool (542) is located at the disconnected position.
4. A dust extraction device for a heat source plant according to claim 3, characterized in that the arc-shaped grooves comprise a first arc-shaped groove (545) and a second arc-shaped groove (546), wherein the depth of the first arc-shaped groove (545) is greater than the depth of the second arc-shaped groove (546); the first arc groove (545) and the second arc groove (546) are configured such that when the spool (542) rotates within a first angular range, the first groove (543) and the second groove (544) communicate only through the first arc groove (545), when the spool (542) rotates within a second angular range, the first groove (543) and the second groove (544) communicate only through the second arc groove (546), and when the spool (542) rotates within a third angular range, the first groove (543) and the second groove (544) are disconnected.
5. The dust removing device for a heat source plant according to claim 4, wherein a linkage mechanism is provided between the driving shaft (30) and the spool (542), the linkage mechanism being configured such that the spool (542) rotates to the first angular range when the driving shaft (30) rotates to an angle releasing the pendulum (41), and the spool (542) rotates to the second angular range and the third angular range in sequence when the driving shaft (30) continues to rotate by a preset angle.
6. The dust removal apparatus for a heat source plant according to claim 5, wherein the linkage mechanism includes a driving gear (32) fixedly connected to the driving shaft (30), and a driven gear (55) fixedly connected to the spool (542), the driving gear (32) being intermeshed with the driven gear (55).
7. A dust collector for a heat source plant according to claim 1, wherein the collecting electrodes (10) comprise a multi-layered plate-like structure arranged parallel to each other, the corona electrodes (20) being located between the layers of the collecting electrodes (10).
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| CN2325116Y (en) * | 1998-04-08 | 1999-06-23 | 朱北应 | Composition and vertical type dust remover with high voltage static filtration trough |
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