CN216170869U - Flow field uniform distribution device for filter - Google Patents
Flow field uniform distribution device for filter Download PDFInfo
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- CN216170869U CN216170869U CN202121393678.2U CN202121393678U CN216170869U CN 216170869 U CN216170869 U CN 216170869U CN 202121393678 U CN202121393678 U CN 202121393678U CN 216170869 U CN216170869 U CN 216170869U
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Abstract
The utility model discloses a flow field uniform distribution device for a filter. The flow field uniform distribution device for the filter is provided with an air inlet, an air outlet, a filtering structure positioned between the air inlet and the air outlet and an ash discharge structure positioned below the filtering structure, and comprises a flow distribution structure arranged between the filtering structure and the ash discharge structure; the flow distribution structure is internally connected with the filter shell and provided with a gas flow distribution channel, and the gas flow distribution channel is provided with a side wall which is not vertically distributed. The flow field uniform distribution device for the filter can disturb the flow of the gas to be filtered in the filter by arranging the gas distribution channel with a special shape, so that the flow field distribution of the gas to be filtered in the horizontal direction is obviously improved, and the adverse effect caused by the uneven distribution of the flow field of the gas to be filtered is effectively avoided; and the flow field equipartition device is simple in structure, can directly add on current filter, need not change the structure of filter.
Description
Technical Field
The utility model relates to the technical field of filters, in particular to the technical field of gas filters, and particularly relates to a flow field uniform distribution device for a filter.
Background
In the existing filter, the gas to be filtered enters the interior of the filter housing from the gas inlet, during the flowing process of the gas inlet channel between the gas inlet and the filter element, the flow velocity of the gas to be filtered is suddenly changed due to the change of the cross-sectional size and shape of the gas inlet channel, and the gas to be filtered tends to rapidly contact with the filter medium adjacent to the gas inlet channel, so that the flow field distribution of the gas to be filtered in the horizontal direction is not uniform, thereby generating the following adverse effects:
(1) the filter media adjacent the inlet channels are subjected to a stronger gas impingement force than the filter media adjacent the outlet channels, and therefore the filter media adjacent the inlet channels have a shorter life;
(2) the gas handling capacity of the filter medium adjacent to the air inlet channel to be filtered is higher than that of the filter medium adjacent to the air outlet channel, so that the filter medium adjacent to the air inlet channel is easier to block, the filtering efficiency is quickly reduced, and the back flushing and dust removal are not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a flow field uniform distribution device for a filter, which aims to solve the technical problem of uneven horizontal flow field distribution of gas to be filtered in a filter element in the prior art.
In order to achieve the purpose, the utility model provides a flow field uniform distribution device for a filter. The technical scheme is as follows:
the flow field uniform distribution device for the filter is provided with an air inlet, an air outlet, a filtering structure positioned between the air inlet and the air outlet and an ash discharge structure positioned below the filtering structure, and comprises a flow distribution structure arranged between the filtering structure and the ash discharge structure; the flow distribution structure is internally connected with the filter shell and provided with a gas flow distribution channel, and the gas flow distribution channel is provided with a side wall which is not vertically distributed.
The flow field uniform distribution device for the filter can disturb the flow of the gas to be filtered in the filter by arranging the gas distribution channel with a special shape, so that the flow field distribution of the gas to be filtered in the horizontal direction is obviously improved, and the adverse effect caused by the uneven distribution of the flow field of the gas to be filtered is effectively avoided; and the flow field equipartition device is simple in structure, can directly add on current filter, need not change the structure of filter.
Further, the flow dividing structure comprises a frame inscribed in the filter shell and grid plates bridged on the frame, and the gas flow dividing channels are formed between the adjacent grid plates. Therefore, the structure is simple, the weight is light, and the installation is convenient.
Further, the filter structure includes: the top and two sides of the front baffle are internally connected with the filter shell, and a space is reserved between the front baffle and the edge of the top plate of the shell; the side edge of the pore plate is connected with the bottom of the front baffle, and the other side edges are internally connected with the filter shell; a filter element having a top connected to the aperture plate.
Furthermore, two adjacent grid plates are arranged in parallel, and the included angle between the axis of each grid plate and the vertical plane is 20-70 degrees; or two adjacent grid plates are symmetrically distributed on a vertical plane, and the included angle between the two adjacent grid plates is 30-120 degrees. Therefore, the flow resistance of the gas to be filtered can not be large, and the uniform distribution effect of the flow field is good. When two adjacent grid plates are parallel, the upper ends of the grid plates can incline towards the air inlet or incline towards the opposite direction of the air outlet.
Further, the width of the inlet end and/or the outlet end of the gas diversion channel is 20-100 mm, and the thickness of the grid plate is 10-60 mm. Therefore, the flow field uniform distribution effect is good. Especially, when the width of the gas distribution channel increases progressively along the direction towards the gas outlet, the uniform distribution effect of the flow field is obviously improved.
Further, the distance between the flow dividing structure and the bottom of the filter element is 0.5-1.5 m. Therefore, the flow field distribution of the gas to be filtered in the vertical plane is improved. In particular, the flow field distribution in the vertical plane is better when the distance between the flow dividing structure and the bottom of the filter element increases in the direction towards the air outlet.
Further, the grid plate is a flat plate or an arc plate.
Further, the length of the flow dividing structure is 0.5-1 times of the length of the pore plate. Therefore, a better uniform flow field distribution effect is ensured. When the length of the flow dividing structure is less than the length of the perforated plate, it is preferred that the flow dividing structure is attached to the bottom of the flow directing plate, hereinafter.
Further, the distance between the front baffle and the edge of the top plate is 2-4 m.
Further, the number of the filter elements is at least two, and each filter element comprises at least two filter tubes arranged in parallel.
Furthermore, the outer diameter of the filter tube is 20-240 mm, and the length of the filter tube is 500-8000 mm.
Furthermore, the flow field uniform distribution device further comprises a drainage plate, the top of the drainage plate is connected with the bottom of the front baffle, and two sides of the drainage plate are connected with the filter shell in an inscribed mode.
Furthermore, the height of the flow guide plate is more than or equal to that of the filter element.
Further, the distance between the bottom of the drainage plate and the top of the ash discharging structure is 1.5-3 m.
Therefore, the flow field uniform distribution device for the filter has the advantages of simple structure and convenience in installation, can remarkably improve the flow field distribution of gas to be filtered in the filter, prolongs the service life of a filter element, reduces the frequency of back flushing and dust removal, and has strong practicability.
The utility model is further described with reference to the following figures and detailed description. Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to assist in understanding the utility model, and are included to explain the utility model and their equivalents and not limit it unduly. In the drawings:
fig. 1 is a schematic structural view of a flow field equipartition device for a filter according to embodiment 1 of the present invention.
Fig. 2 is a top view of the flow dividing structure of fig. 1.
Fig. 3 is a cross-sectional view of one embodiment of the flow splitting structure of fig. 1.
Fig. 4 is a cross-sectional view of another embodiment of the flow dividing structure of fig. 1.
Fig. 5 is a sectional view of a flow dividing structure in the flow field equipartition device for a filter according to embodiment 2 of the present invention.
Fig. 6 is a sectional view of a flow dividing structure in the flow field equipartition device for a filter according to embodiment 3 of the present invention.
Fig. 7 is a sectional view of a flow dividing structure in a flow field equipartition device for a filter according to embodiment 4 of the present invention.
Fig. 8 is a schematic structural view of a flow field equipartition device for a filter according to embodiment 5 of the present invention.
The relevant references in the above figures are:
110-inlet, 120-outlet, 130-ceiling, 210-front baffle, 220-orifice plate, 230-filter element, 300-ash discharge structure, 400-flow dividing structure, 410-frame, 420-grid plate, 500-flow guide plate.
Detailed Description
The utility model will be described more fully hereinafter with reference to the accompanying drawings. Those skilled in the art will be able to implement the utility model based on these teachings. Before the present invention is described in detail with reference to the accompanying drawings, it is to be noted that:
the technical solutions and features provided in the present invention in the respective sections including the following description may be combined with each other without conflict.
Moreover, the embodiments of the present invention described in the following description are generally only some embodiments of the present invention, and not all embodiments. Therefore, all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.
With respect to terms and units in the present invention. The terms "comprising," "having," and any variations thereof in the description and claims of this invention and the related sections are intended to cover non-exclusive inclusions.
Example 1
Fig. 1 is a schematic structural view of the flow field uniform distribution device for the filter according to the embodiment. Fig. 2 is a top view of the shunting structure 400 of fig. 1. Fig. 3-4 are cross-sectional views of two embodiments of the flow-splitting structure 400 of fig. 1, respectively.
As shown in fig. 1-4, the filter has a gas inlet 110, a gas outlet 120, a filter structure located between the gas inlet 110 and the gas outlet 120, and an ash discharge structure 300 located below the filter structure; the filter structure comprises a front baffle 210, a pore plate 220 and a filter element 230, wherein the top and two sides of the front baffle 210 are internally connected with the filter shell, a space is reserved between the front baffle 210 and the edge of the top plate 130 of the shell, one side edge of the pore plate 220 is connected with the bottom of the front baffle 210, the other side edge is internally connected with the filter shell, and the top of the filter element 230 is connected with the pore plate 220; the ash discharge structure 300 includes an ash bin.
The distance D1 between the front baffle 210 and the edge of the top plate 130 is 2-4 m.
The number of the filter elements 230 is at least two, each filter element 230 comprises at least two filter tubes which are arranged in parallel and are made of metal films which can bear high temperature in a rolling mode; the outer diameter of the filter tube is 20-240 mm, and the length of the filter tube is 500-8000 mm; during specific implementation, the combination of large outer diameter and large length or the combination of small outer diameter and small length is preferably adopted, for example, the outer diameter of the filter tube is 100-180 mm, the length is 3000-7000 mm, or the outer diameter of the filter tube is 20-90 mm, and the length is 500-4000 mm. More preferably, the outer diameter of the filter tube is 120-160 mm, and the length is 3500-6000 mm, or the outer diameter of the filter tube is 30-60 mm, and the length is 1000-3000 mm.
The flow field uniform distribution device for the filter comprises a flow distribution structure 400 arranged between a filtering structure and an ash discharge structure 300, wherein the flow distribution structure 400 is internally connected with a filter shell, the flow distribution structure 400 is provided with a gas flow distribution channel, and the gas flow distribution channel is provided with a side wall which is not vertically distributed.
The flow diversion structure 400 specifically includes a frame 410 that is internally attached to the filter housing and louvers 420 that span the frame 410, with the gas flow diversion channels formed between adjacent louvers 420. Two adjacent grid plates 420 are arranged in parallel, and the included angle theta 1 between the axis of each grid plate 420 and the vertical plane is 20-70 degrees; the width L1 of the inlet end and the width L2 of the outlet end of the gas diversion channel are both 20-100 mm, and the thickness L3 of the grid plate 420 is 10-60 mm; the distance D3 between the flow dividing structure 400 and the bottom of the filter element 230 is 0.5-1.5 m; the grid plate 420 is a flat plate.
The flow field uniform distribution device further comprises a flow guide plate 500, the top of the flow guide plate 500 is connected with the bottom of the front baffle 210, and two sides of the flow guide plate 500 are connected with the filter shell in an inner mode; the height of the flow guide plate 500 is greater than the height of the filter element 230; the distance D2 between the bottom of the drainage plate 500 and the top of the ash discharging structure 300 is 1.5-3 m.
The length of the flow dividing structure 400 is 0.75 times of the length of the orifice plate 220, and the end of the flow dividing structure 400 is connected with the bottom of the flow guide plate 500.
Example 2
Fig. 5 is a cross-sectional view of a flow dividing structure 400 in the flow field equipartition device for a filter according to the present embodiment.
Compared with the embodiment 1, the flow field uniform distribution device for the filter of the embodiment has the following differences: as shown in FIG. 5, two adjacent grid plates 420 are symmetrically distributed on a vertical plane, an included angle theta 2 between the two adjacent grid plates 420 is 30-120 degrees, the width L1 of the inlet end of the gas diversion channel is 20-60 mm, and the width L2 of the outlet end of the gas diversion channel is 60-100 mm.
Example 3
Fig. 6 is a sectional view of a flow dividing structure 400 in the flow field equipartition device for a filter according to the present embodiment.
Compared with the embodiment 1, the flow field uniform distribution device for the filter of the embodiment has the following differences: as shown in fig. 6, the width of the gas distribution channel increases in a direction toward the gas outlet 120.
Example 4
Fig. 7 is a sectional view of a flow dividing structure 400 in the flow field equipartition device for a filter according to the present embodiment.
Compared with the embodiment 1, the flow field uniform distribution device for the filter of the embodiment has the following differences: as shown in FIG. 7, louvers 420 are arcuate panels.
Example 5
Fig. 8 is a schematic structural view of the flow field uniform distribution device for the filter according to the embodiment.
Compared with the embodiment 1, the flow field uniform distribution device for the filter of the embodiment has the following differences: as shown in fig. 8, the distance between the flow dividing structure 400 and the bottom of the filter element 230 increases in a direction toward the air outlet 120, and the length of the flow dividing structure 400 is equal to the length of the orifice plate 220.
The contents of the present invention have been explained above. Those skilled in the art will be able to implement the utility model based on these teachings. All other embodiments, which can be derived by a person skilled in the art from the above description without inventive step, shall fall within the scope of protection of the present invention.
Claims (10)
1. A row's of grey structure (300) that is used for flow field equipartition device of filter, the filter has air inlet (110), gas outlet (120), is located the filtration between air inlet (110) and gas outlet (120) and is located filtration below, its characterized in that:
the flow field uniform distribution device comprises a flow dividing structure (400) arranged between the filtering structure and the ash discharging structure (300);
the flow distribution structure (400) is internally connected with the filter shell, and the flow distribution structure (400) is provided with a gas flow distribution channel which is provided with a side wall which is not vertically distributed.
2. The flow field equipartition device for a filter according to claim 1, wherein:
the flow dividing structure (400) comprises a frame (410) internally connected with the filter shell and grid plates (420) bridged on the frame (410), and the gas flow dividing channels are formed between the adjacent grid plates (420); and/or the like and/or,
the filter structure includes:
the filter comprises a front baffle (210), wherein the top and two sides of the front baffle (210) are inscribed in the filter shell, and a gap is reserved between the front baffle (210) and the edge of a top plate (130) of the shell;
the pore plate (220), one side of the pore plate (220) is connected with the bottom of the front baffle plate (210), and the other side is internally connected with the filter shell;
a filter element (230), the top of the filter element (230) being connected to the aperture plate (220).
3. The flow field equipartition device for a filter according to claim 2, wherein: two adjacent grid plates (420) are arranged in parallel, and the included angle between the axis of each grid plate (420) and the vertical plane is 20-70 degrees; or two adjacent grid plates (420) are symmetrically distributed on a vertical plane, and the included angle between the two adjacent grid plates (420) is 30-120 degrees.
4. The flow field equipartition device for a filter according to claim 2, wherein: the width of the inlet end and/or the outlet end of the gas diversion channel is 20-100 mm, and the thickness of the grid plate (420) is 10-60 mm; and/or the distance between the flow dividing structure (400) and the bottom of the filter element (230) is 0.5-1.5 m.
5. The flow field equipartition device for a filter according to claim 4, wherein: the width of the gas distribution channel increases progressively in the direction towards the gas outlet (120); and/or the spacing between the flow dividing structure (400) and the bottom of the filter element (230) increases in a direction towards the air outlet (120).
6. The flow field equipartition device for a filter according to claim 2, wherein: the grid plate (420) is a flat plate or an arc plate; and/or the length of the flow dividing structure (400) is 0.5-1 times of that of the pore plate (220).
7. The flow field equipartition device for a filter according to claim 2, wherein: the distance between the front baffle (210) and the edge of the top plate (130) is 2-4 m; and/or the number of filter elements (230) is at least two, each filter element (230) comprising at least two filter tubes arranged in parallel.
8. The flow field equipartition device for a filter according to claim 7, wherein: the outer diameter of the filter tube is 20-240 mm, and the length of the filter tube is 500-8000 mm.
9. The flow field equipartition device for a filter according to claim 2, wherein: the flow field uniform distribution device further comprises a flow guide plate (500), the top of the flow guide plate (500) is connected with the bottom of the front baffle (210), and two sides of the flow guide plate are internally connected with the filter shell.
10. A flow field equipartition device for a filter according to claim 9, wherein: the height of the flow guide plate (500) is more than or equal to that of the filter element (230); and/or the distance between the bottom of the drainage plate (500) and the top of the ash discharging structure (300) is 1.5-3 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121393678.2U CN216170869U (en) | 2021-06-22 | 2021-06-22 | Flow field uniform distribution device for filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121393678.2U CN216170869U (en) | 2021-06-22 | 2021-06-22 | Flow field uniform distribution device for filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216170869U true CN216170869U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121393678.2U Active CN216170869U (en) | 2021-06-22 | 2021-06-22 | Flow field uniform distribution device for filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216170869U (en) |
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2021
- 2021-06-22 CN CN202121393678.2U patent/CN216170869U/en active Active
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