CN114904337B - Air inlet pipe for bag type dust collector and bag type dust collector - Google Patents
Air inlet pipe for bag type dust collector and bag type dust collector Download PDFInfo
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- CN114904337B CN114904337B CN202210713118.3A CN202210713118A CN114904337B CN 114904337 B CN114904337 B CN 114904337B CN 202210713118 A CN202210713118 A CN 202210713118A CN 114904337 B CN114904337 B CN 114904337B
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- air inlet
- side wall
- opening
- section
- inlet channel
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- 239000000428 dust Substances 0.000 title abstract description 41
- 238000000926 separation method Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 description 8
- 230000001788 irregular Effects 0.000 description 6
- 238000009991 scouring Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to an air inlet pipe for a bag type dust collector and the bag type dust collector. An air inlet duct for a bag house, comprising: the air inlet pipe main body is provided with an air inlet channel, an air inlet communicated with the air inlet channel and the external environment and an air inlet lower opening communicated with the air inlet channel and the external environment, and is provided with a first side wall and a second side wall which are oppositely arranged, and the first side wall and the second side wall are adjacent to the air inlet lower opening; the first side wall and the second side wall are respectively provided with a plurality of openings for communicating the air inlet channel with the external environment; the guide plates are arranged on the first side wall and the second side wall; the projection of the guide plate arranged on the first side wall completely covers the opening on the first side wall; and the projection of the guide plate arranged on the second side wall completely covers the opening on the second side wall.
Description
Technical Field
The invention relates to the field of dust removal, in particular to an air inlet pipe for a bag type dust remover and the bag type dust remover.
Background
The traditional bag type dust collector is designed by adopting a dust hopper air inlet design, and the design concept has the advantages that the air flow distribution is uniform, no obvious high-speed area exists, and the air flow distribution uniformity generated by the flow guiding and air flow distribution structure is supported by the hydrodynamic analysis result and verified by the practical implementation result. The main air inlet pipe is divided into an air inlet branch pipe and is led into an ash bucket, a plurality of branch pipes, multiple directions, a large bearing surface and easy ash accumulation under complex working conditions (large air quantity change, high dust concentration, high humidity and the like). In order to solve the problem, the straight-through air inlet pipe is arranged, and the advantages of convenient manufacture, no ash blockage, low pressure loss and the like are paid more attention to.
The air flow after flow equalization of the flow equalization plate directly enters an air inlet channel of the straight-through air inlet pipe, and then enters each chamber through an air inlet lower opening for dust removal treatment. The two side plates of the air inlet channel of the earliest straight-through air inlet pipe adopt blind plates, so that all air flows enter each dust remover chamber from the lower opening of the air inlet, and the hoisting air in the ash bucket is overlarge, so that the bottom of the bag is easily flushed to cause the bottom of the filter bag to be damaged. In order to solve the problem, the side plate is provided with a porous plate, so that part of air flow directly enters the dust remover chamber through the gallery side plate, the air flow entering the dust remover chamber from the lower opening of the air inlet is reduced, and the maximum air flow can be reduced by about 20% -30%. However, the air flows out from the side plates, so that the filter bag is easy to wash, and the side surface of the filter bag is damaged.
Disclosure of Invention
Problems to be solved by the invention
In order to avoid the phenomenon of damage to the filter bag caused by scouring the bottom and the side surface of the filter bag, the air inlet pipe for the bag type dust collector can avoid excessive scouring of the bottom of the filter bag and avoid scouring of the side surface of the filter bag.
Solution for solving the problem
An air inlet duct for a bag house, comprising:
the air inlet pipe main body is provided with an air inlet channel, an air inlet communicated with the air inlet channel and the external environment and an air inlet lower opening communicated with the air inlet channel and the external environment, and is provided with a first side wall and a second side wall which are oppositely arranged, and the first side wall and the second side wall are adjacent to the air inlet lower opening; the first side wall and the second side wall are respectively provided with a plurality of openings for communicating the air inlet channel with the external environment; and
the guide plates are arranged on the first side wall and the second side wall; the projection of the guide plate arranged on the first side wall completely covers the opening on the first side wall; and the projection of the guide plate arranged on the second side wall completely covers the opening on the second side wall. Optionally, a side of the guide plate, which is close to the lower inlet opening, is inclined to the direction of the air inlet pipe main body.
Optionally, the plurality of guide plates are in one-to-one correspondence with the plurality of openings.
Optionally, a side edge of the guide plate on the first side wall, which is close to the air inlet lower opening, is engaged with the first side wall, and a side edge of the guide plate on the second side wall, which is close to the air inlet lower opening, is engaged with the second side wall.
Optionally, the direction perpendicular to the air inlet is a first direction, the direction perpendicular to the lower opening of the air inlet is a second direction, and an included angle between the first direction and the second direction is smaller than 180 degrees; the air inlet channel comprises a first section and a second section which are sequentially connected from the air inlet; the first section extends in the first direction and the second section extends in the second direction;
the air inlet pipe further comprises:
the chamber separating baffles are arranged at the second section of the air inlet channel to separate the second section of the air inlet channel into a plurality of processing chambers extending along the second direction; the plurality of chamber baffles extend out to the first section of the air inlet channel; the protruding height of the chamber baffle plate is gradually increased along the direction parallel to the first direction and away from the air inlet.
Optionally, a side of the chamber baffle, which is far away from the lower inlet opening, is inclined to the direction of the air inlet.
Optionally, a plurality of diversion baffles are arranged in the first section of the air inlet channel;
each treatment chamber is arranged corresponding to at least one flow dividing baffle plate; in any of the treatment chambers, the height of the side wall close to one side of the air inlet, the height of the at least one split baffle and the height of the side wall far from one side of the air inlet are sequentially increased by taking the lower opening of the air inlet as a reference.
Optionally, the heights of the plurality of diversion baffles are the same along the second direction.
Optionally, a side of the split baffle, which is far away from the lower inlet opening, is inclined to the direction of the air inlet.
The invention also provides a bag type dust collector which comprises the air inlet pipe.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the air inlet pipe for the bag type dust collector, through the arrangement of the guide plate, air flow flowing out of the opening is blocked by the guide plate, and the air flow is prevented from scouring the side face of the filter bag. In addition, through the setting of opening, also can reduce and get into dust remover room air flow from the lower open of air inlet to reduce the washing intensity to the filter bag bottom, and then reduce the phenomenon that causes the filter bag bottom to damage because of washing the bag bottom.
In the bag type dust collector, the air inlet pipe is provided with the guide plate, so that the air flow flowing out of the opening is blocked by the guide plate, and the air flow is prevented from scouring the side surface of the filter bag. In addition, through the setting of opening, also can reduce and get into dust remover room air flow from the lower open of air inlet to reduce the washing intensity to the filter bag bottom, and then reduce the phenomenon that causes the filter bag bottom to damage because of washing the bag bottom.
Drawings
Fig. 1 is a schematic structural view of an air inlet pipe for a bag filter according to an embodiment of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a cross-sectional view taken along A-A of fig. 1.
Fig. 4 is a schematic structural view of an air inlet pipe for a bag filter according to another embodiment of the present invention.
Description of the reference numerals
100. An air inlet pipe; 110. an air inlet pipe main body; 111. an air inlet channel; 111a, a first section; 111b, a second section; 111c, a process chamber; 112. an air inlet; 114. the air inlet is opened downwards; 113. a first sidewall; 115. a second sidewall; 116. an opening; 130. a guide plate; 150. a chamber separation baffle; 170. a shunt baffle; A-A, a first direction; b-b, second direction.
Detailed Description
In order to make the technical scheme and the beneficial effects of the invention more obvious and understandable, the following detailed description is given by way of example. Wherein the drawings are not necessarily to scale, and wherein local features may be exaggerated or reduced to more clearly show details of the local features; unless defined otherwise, technical and scientific terms used herein have the same meaning as technical and scientific terms in the technical field to which this application belongs.
In the description of the present invention, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for convenience of simplifying the description of the present invention, and do not indicate that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, i.e., are not to be construed as limiting the present invention.
In the present invention, the terms "first", "second" are used for descriptive purposes only and are not to be construed as relative importance of the features indicated or the number of technical features indicated. Thus, a feature defining "first", "second" may explicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, for example, two, three, etc.; "plurality" means at least one, such as one, two, three, etc.; unless otherwise specifically defined.
In the present invention, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly, unless otherwise specifically limited. For example, "connected" may be either fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, or can be communicated between two elements or the interaction relationship between the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless explicitly defined otherwise, a first feature "on", "above", "over" and "above", "below" or "under" a second feature may be that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact via an intermediary. Moreover, a first feature "above," "over" and "on" a second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the level of the first feature is higher than the level of the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the level of the first feature is less than the level of the second feature.
For convenience of description, "front end" and "back end" are employed in the description of the embodiments. Wherein, the front end is the direction close to the air inlet along the first direction, and the rear end is the direction far away from the air inlet along the first direction.
As shown in fig. 1 to 3, an air inlet duct 100 for a bag filter according to an embodiment of the present invention includes an air inlet duct body 110, a plurality of guide plates 130, and a plurality of chamber baffles 150.
Referring to fig. 1 and 2, an air inlet duct body 110 has an air inlet channel 111, an air inlet 112 communicating the air inlet channel 111 with an external environment, and an air inlet lower opening 114 connecting the air inlet channel with the external environment, the air inlet duct body 110 has a first side wall 113 and a second side wall 115 disposed opposite to each other, and the first side wall 113 and the second side wall 115 are adjacent to the air inlet lower opening 114. The first side wall 113 and the second side wall 115 are respectively provided with a plurality of openings 116 for communicating the air inlet channel 111 with the external environment. Accordingly, through the arrangement of the opening 116, the air flow entering the dust collector chamber from the air inlet lower opening 114 is reduced, so that the flushing strength of the bottom of the filter bag is reduced, and the phenomenon of bottom breakage of the filter bag caused by flushing the bottom of the filter bag is further reduced.
It will be appreciated that, when the air inlet pipe 100 is mounted on the bag filter, the air inlet 112 is used for communicating the air inlet channel 111 with the flue of the bag filter, the air inlet lower opening 114 is used for communicating the air inlet channel 111 with the lower box of the bag filter, and the opening 116 is used for communicating the air inlet channel 111 with the inner cavity of the middle box of the bag filter.
The direction perpendicular to the air inlet 112 is a first direction A-A, the direction perpendicular to the air inlet lower opening 114 is a second direction b-b, and the included angle between the first direction A-A and the second direction b-b is smaller than 180 degrees. The air inlet channel 111 includes a first section 111a and a second section 111b that are sequentially connected from the air inlet 112. The first section 111a extends in a first direction A-A and the second section 111b extends in a second direction b-b.
In this embodiment, the first direction A-A is perpendicular to the second direction b-b. It will be appreciated that in other possible embodiments the angle between the first direction A-A and the second direction b-b may be acute or obtuse.
In this embodiment, the sections of the first section 111a and the second section 111b of the air intake channel 111 perpendicular to the extending direction thereof are rectangular. It will be appreciated that in other possible embodiments, the cross-section is not limited to rectangular, but may take on other regular or irregular shapes.
A plurality of guide plates 130 are provided on the first side wall 113 and the second side wall 115. The projection of the guide plate 130 on the first side wall 113 completely covers the opening 116 on the first side wall 113. The projection of the guide plate 130 on the second side wall 115 completely covers the opening 116 on the second side wall 115. By providing the guide plate 130, the air flow flowing in from the opening 116 is blocked by the guide plate 130, and the side of the filter bag is prevented from being washed by the air flow.
In this embodiment, referring to fig. 1 and 3, a portion of the guide plate 130 adjacent to the inlet lower opening 114 is inclined to the direction of the air inlet pipe body 110. So that the air flow flowing in from the opening 116 can flow in a direction away from the lower inlet opening 114 after encountering the side plate, so as to smoothly flow out from the outlet of the filter bag.
Specifically, in this embodiment, a side of the guide plate 130 near the inlet lower opening 114 is inclined along a straight line toward the air inlet pipe main body 110. It will be appreciated that in other possible embodiments, the side of the guide plate 130 adjacent to the inlet lower opening 114 is not limited to being inclined in a straight line toward the air inlet pipe main body 110, but may be inclined in a parabolic or other regular or irregular trajectory toward the air inlet pipe main body 110.
In this embodiment, the plurality of guide plates 130 are in one-to-one correspondence with the plurality of openings 116, that is, one guide plate 130 is disposed at each opening 116.
In this embodiment, the side edge of the guide plate 130 disposed on the first side wall 113, which is close to the air inlet lower opening 114, is engaged with the first side wall 113, and the side edge of the guide plate 130 disposed on the second side wall 115, which is close to the air inlet lower opening 114, is engaged with the second side wall 115. Thus, the airflow exiting each opening 116 is allowed to move in a direction away from the lower inlet opening 114.
Further, optionally, in this embodiment, the width of the guide plate 130 along the first direction A-A is slightly greater than the width of the opening 116 along the first direction A-A by a difference in the range of 20mm to 30mm, so as to avoid blocking the reverse flow of the air flow flowing out of the air inlet lower opening 114 after contacting with the bottom of the filter bag, and ensure the stability and uniformity of the air flow speed between the bags.
Of course, it is understood that in other possible embodiments, each guide plate 130 may also correspond to a plurality of openings 116. The projection of the plurality of guide plates 130 on the corresponding side wall can completely cover the opening 116 on the side wall.
In this embodiment, the openings 116 on the first side wall 113 and the second side wall 115 are arranged in a matrix, and the openings 116 on the first side wall 113 are disposed opposite to the openings 116 on the second side wall 115 one by one. It will be appreciated that in other possible embodiments, the arrangement of the openings 116 may be arranged in other regular or irregular ways. Similarly, the openings 116 on the first sidewall 113 and the openings 116 on the second sidewall 115 may not be disposed opposite to each other.
In this embodiment, the openings 116 are rectangular, and the sizes of the openings 116 are uniform. It will be appreciated that in other possible embodiments, the openings 116 are not limited to rectangular, but may be regular or irregular in shape, such as circular, diamond, etc., and that the size of the openings may not be uniform.
In this embodiment, the guide plate 130 is integrally formed with the air inlet pipe body 110. It will be appreciated that in other possible embodiments, the guide plate 130 may be separately disposed from the air inlet pipe body 110, and the guide plate 130 is fixedly connected to the air inlet pipe body 110.
Referring to fig. 3, in the present embodiment, a plurality of chamber baffles 150 are disposed on the second section 111b of the air inlet channel 111 to divide the second section 111b of the air inlet channel 111 into a plurality of process chambers 111c extending along the second direction b-b. The chamber baffles 150 extend to the first section 111a of the air inlet channel 111, and along the direction parallel to the first direction A-A and away from the air inlet 112, the extending height of the chamber baffles 150 gradually increases to control the amount of air flowing into each processing chamber 111c, and further control the load of the dust removing bag corresponding to each processing chamber 111c, so that the load carried by each dust removing bag is basically consistent, the problem of unbalanced load is avoided, and the phenomenon that the dust removing bag at the rear end of the air inlet pipe is easy to break is reduced.
Specifically, in the present embodiment, the second section 111b is provided with two chamber baffles 150 that divide the second section 111b into three process chambers 111c. For convenience of description, the left side of the sub-chamber barrier 150 in fig. 3 is set as a first sub-chamber barrier, and the right side of the sub-chamber barrier 150 is set as a second sub-chamber barrier. The height difference h1 between the first sub-chamber barrier 150 and the second section 111b, the height difference h2 between the second sub-chamber barrier and the first sub-chamber barrier, and the height difference h3 between the first section 111a and the second sub-chamber barrier 150 are all equal in the second direction b-b with the air inlet lower opening 114 as a reference. Thus, the air flow flowing into each processing chamber 111c can be kept substantially equal, so that the air flow flowing into each dust removing bag is also substantially equal, and the load carried by each dust removing bag is ensured to be substantially equal, so that damage caused by overload of part of the dust removing bags is avoided.
In this embodiment, a side of the chamber baffle 150 away from the inlet lower opening 114 is inclined toward the inlet 112. The airflow flowing into the chamber baffle 150 can flow to one side of the air inlet lower opening 114, namely, the airflow is prevented from flowing into the processing chamber 111c at the rear end of the air inlet lower opening, so that the airflow flowing into each processing chamber 111c can be kept substantially equal, the airflow flowing into each dust removing bag is also kept substantially equal, the load borne by each dust removing bag is ensured to be substantially equal, and damage caused by overload of part of the dust removing bags is avoided.
In this embodiment, the inclined portion of each of the chamber baffles 150 is uniform in size. It will be appreciated that in other possible implementations, the size of the sloped portion of each of the chambered baffles 150 may also be non-uniform.
In this embodiment, the inclined portion of each of the chamber baffles 150 is flat, so that dust in the airflow can be effectively prevented from depositing on the chamber baffles 150, and the occupied space is small. It will be appreciated that in other possible embodiments, the inclined portion of the compartmental baffle 150 is not limited to being flat, but may be a regular or irregular shaped structure such as a curved plate.
In this embodiment, two chamber baffles 150 are disposed in the second section 111b of the air inlet channel 111, and the two chamber baffles 150 are arranged along the first direction A-A and divide the second section 111b of the air inlet channel 111 into three processing chambers 111c with the same size. It will be appreciated that in other possible embodiments, the number of partition walls 150 in the air inlet channel 111 is not limited to two, and the arrangement direction is not limited thereto, and may be divided as required.
In this embodiment, the chamber baffles 150 each extend in the second direction b-b to avoid dust accumulation in the airflow.
A plurality of diversion baffles 170 are disposed in the first section 111a of the air inlet channel 111. Each of the process chambers 111c is provided corresponding to at least one of the split baffles 170. In any of the processing chambers 111c, the height of the side wall near the air inlet 112, the height of the at least one split baffle 170, and the height of the side wall far from the air inlet 112 are sequentially increased based on the air inlet lower opening 114. When one processing chamber 111c corresponds to a plurality of the split baffles 170, the height of the plurality of split baffles 170 increases in sequence. Thus, the gas flow in the same processing chamber 111c can be split, thereby avoiding the phenomenon that the gas flow in the unified processing chamber 111c is concentrated at the rear end.
Specifically, referring to fig. 3, in the present embodiment, when viewed from the direction of the air inlet 112, an end of the split-flow baffle 170 near the air inlet lower opening 114 is blocked by a side wall or the split-flow baffle 170 located at the proximal end side thereof, so that the air flow is prevented from flowing from the lower end of the split-flow baffle 170 to the rear end of the air inlet channel 111.
Along the second direction b-b, the heights of the plurality of diversion baffles 170 are the same. The purpose of air flow diversion can be achieved, and the excessive occupation of the space in the air inlet channel 111 caused by the excessively high height of the diversion baffle 170 can be avoided. Specifically, the diversion baffle 170 is fixedly disposed on the sidewall of the air intake passage 111. Alternatively, the split baffle 170 may be integrally formed with the air inlet pipe body 110, or may be fixedly connected with the air inlet pipe body 110.
When the split baffle 170 is fixedly connected with the air inlet pipe main body 110, the heights of the split baffles 170 are the same, so that the split baffles 170 can be used arbitrarily without distinction when being installed.
It will be appreciated that the side of the diverter baffle 170 remote from the lower inlet opening 114 is inclined towards the inlet 112. So that the air flowing in from the opening 116 can flow in a direction approaching the lower inlet opening 114 after encountering the diversion baffle 170, so as to smoothly flow out from the lower inlet opening 114.
Specifically, in the present embodiment, two split baffles 170 are provided for each process chamber 111c. The side wall close to the air inlet 112, the at least one diversion baffle 170 and the side wall far away from the air inlet 112 are equally spaced, and the height difference between the side wall close to the air inlet 112 and the diversion baffle 170 positioned at the rear end thereof, the height difference between the adjacent diversion baffles 170, and the height difference between the side wall far away from the air inlet 112 and the diversion baffle 170 positioned at the front end thereof are equal. Thus, the air flow flowing into the processing chamber 111c can be kept basically balanced, so that the air flow flowing into each dust removing bag is basically equal, and the loads carried by the bottom part and the side parts of the dust removing bags are basically equal, so that damage caused by overload of local loads of the dust removing bags is avoided.
In this embodiment, the inclined portion of each of the dividing baffles 170 is uniform in size. It will be appreciated that in other possible implementations, the size of the angled portion of each diverter baffle 170 may also be non-uniform.
In this embodiment, the inclined portion of each of the flow dividing baffles 170 is flat, so that dust in the airflow can be effectively prevented from depositing on the flow dividing baffles 170, and the occupied space is small. It will be appreciated that in other possible embodiments, the inclined portion of the diverter baffle 170 is not limited to being planar, but may be regular or irregular in shape, such as curved panels.
As shown in fig. 4, another embodiment of the present invention provides an air inlet duct 200 for a bag filter, in which one guide plate 130 is provided corresponding to a plurality of openings 116, unlike the air inlet duct 100.
Of course, it is understood that in other possible embodiments, the arrangement of the guide plates is not limited thereto, and may take on various other shapes, and the number of openings corresponding thereto may also be different.
The embodiment of the invention also provides a bag type dust collector, which comprises the air inlet pipe.
In the bag type dust collector, the air inlet pipe is provided with the guide plate, so that the air flow flowing out of the opening is blocked by the guide plate, and the air flow is prevented from scouring the side surface of the filter bag. In addition, through the setting of opening, also can reduce and get into dust remover room air flow from the lower open of air inlet to reduce the washing intensity to the filter bag bottom, and then reduce the phenomenon that causes the filter bag bottom to damage because of washing the bag bottom.
It should be understood that the above examples are illustrative and are not intended to encompass all possible implementations encompassed by the claims. Various modifications and changes may be made in the above embodiments without departing from the scope of the disclosure. Likewise, the individual features of the above embodiments can also be combined arbitrarily to form further embodiments of the invention which may not be explicitly described. Therefore, the above examples merely represent several embodiments of the present invention and do not limit the scope of protection of the patent of the present invention.
Claims (6)
1. An air inlet duct for a bag house, comprising:
the air inlet pipe main body is provided with an air inlet channel, an air inlet communicated with the air inlet channel and the external environment and an air inlet lower opening communicated with the air inlet channel and the external environment, and is provided with a first side wall and a second side wall which are oppositely arranged, and the first side wall and the second side wall are adjacent to the air inlet lower opening; the first side wall and the second side wall are respectively provided with a plurality of openings for communicating the air inlet channel with the external environment; and
the guide plates are arranged on the first side wall and the second side wall; the projection of the guide plate arranged on the first side wall completely covers the opening on the first side wall; the projection of the guide plate arranged on the second side wall completely covers the opening on the second side wall;
the direction perpendicular to the air inlet is a first direction, the direction perpendicular to the lower opening of the air inlet is a second direction, and the included angle between the first direction and the second direction is smaller than 180 degrees; the air inlet channel comprises a first section and a second section which are sequentially connected from the air inlet; the first section extends in the first direction and the second section extends in the second direction;
the air inlet pipe further comprises:
the chamber separating baffles are arranged at the second section of the air inlet channel to separate the second section of the air inlet channel into a plurality of processing chambers extending along the second direction; the plurality of chamber baffles extend out to the first section of the air inlet channel; the protruding height of the chamber separation baffle plate is gradually increased along the direction parallel to the first direction and away from the air inlet;
one side of the chamber separation baffle, which is far away from the lower opening of the air inlet, is inclined to the direction of the air inlet;
a plurality of diversion baffles are arranged in the first section of the air inlet channel;
each treatment chamber is arranged corresponding to at least one flow dividing baffle plate; in any of the treatment chambers, the height of the side wall close to one side of the air inlet, the height of the at least one split baffle and the height of the side wall far from one side of the air inlet are sequentially increased by taking the lower opening of the air inlet as a reference.
2. The air inlet pipe for a bag house according to claim 1, wherein a side of the guide plate adjacent to the lower inlet opening is inclined to a direction of the air inlet pipe body.
3. An air inlet pipe for a bag filter according to claim 1 or 2, wherein a plurality of the guide plates are in one-to-one correspondence with a plurality of the openings.
4. An air inlet pipe for a bag house according to claim 3, wherein a side edge of the guide plate provided on the first side wall, which is adjacent to the lower inlet opening, is engaged with the first side wall, and a side edge of the guide plate provided on the second side wall, which is adjacent to the lower inlet opening, is engaged with the second side wall.
5. The air inlet duct for a baghouse as set forth in claim 1, wherein the height of a plurality of said dividing baffles is the same in said second direction.
6. A bag filter comprising an air inlet duct according to any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210713118.3A CN114904337B (en) | 2022-06-22 | 2022-06-22 | Air inlet pipe for bag type dust collector and bag type dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210713118.3A CN114904337B (en) | 2022-06-22 | 2022-06-22 | Air inlet pipe for bag type dust collector and bag type dust collector |
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| CN114904337A CN114904337A (en) | 2022-08-16 |
| CN114904337B true CN114904337B (en) | 2024-03-01 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092364U (en) * | 1991-04-13 | 1992-01-08 | 浙江省冶金设计院 | Prismatic bag type dust catcher being able to catch dust continuously |
| JP2008279361A (en) * | 2007-05-10 | 2008-11-20 | Nippon Spindle Mfg Co Ltd | Bag type dust collector |
| CN103845976A (en) * | 2014-03-18 | 2014-06-11 | 湖南益天环保科技有限公司 | Air inlet flow rectifier for bag-type dust collector |
| CN105194947A (en) * | 2015-10-23 | 2015-12-30 | 苏州宇洋环保设备制造有限公司 | Electricity-to-bag dust collector |
| WO2017092424A1 (en) * | 2015-11-30 | 2017-06-08 | 胡国海 | Filter device and dust-removing equipment |
| CN207838519U (en) * | 2017-12-29 | 2018-09-11 | 郑州康宁特环境工程科技有限公司 | A kind of large size bag filter water conservancy diversion even distribution device |
| CN212914880U (en) * | 2020-08-10 | 2021-04-09 | 常州市利康环保设备制造有限公司 | Low-pressure circulating type pulse bag type dust collector |
-
2022
- 2022-06-22 CN CN202210713118.3A patent/CN114904337B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092364U (en) * | 1991-04-13 | 1992-01-08 | 浙江省冶金设计院 | Prismatic bag type dust catcher being able to catch dust continuously |
| JP2008279361A (en) * | 2007-05-10 | 2008-11-20 | Nippon Spindle Mfg Co Ltd | Bag type dust collector |
| CN103845976A (en) * | 2014-03-18 | 2014-06-11 | 湖南益天环保科技有限公司 | Air inlet flow rectifier for bag-type dust collector |
| CN105194947A (en) * | 2015-10-23 | 2015-12-30 | 苏州宇洋环保设备制造有限公司 | Electricity-to-bag dust collector |
| WO2017092424A1 (en) * | 2015-11-30 | 2017-06-08 | 胡国海 | Filter device and dust-removing equipment |
| CN207838519U (en) * | 2017-12-29 | 2018-09-11 | 郑州康宁特环境工程科技有限公司 | A kind of large size bag filter water conservancy diversion even distribution device |
| CN212914880U (en) * | 2020-08-10 | 2021-04-09 | 常州市利康环保设备制造有限公司 | Low-pressure circulating type pulse bag type dust collector |
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| CN114904337A (en) | 2022-08-16 |
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