CN110227311B - Filter - Google Patents
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- Publication number
- CN110227311B CN110227311B CN201910415413.9A CN201910415413A CN110227311B CN 110227311 B CN110227311 B CN 110227311B CN 201910415413 A CN201910415413 A CN 201910415413A CN 110227311 B CN110227311 B CN 110227311B
- Authority
- CN
- China
- Prior art keywords
- filter
- air inlet
- air outlet
- baffle
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009423 ventilation Methods 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 14
- 238000004140 cleaning Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 238000007664 blowing Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- 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
- B01D46/0002—Casings; Housings; Frame constructions
-
- 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
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
-
- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
Abstract
The invention provides a filter, which comprises a ventilating duct and a filter arranged in the ventilating duct, wherein the filter extends in a spiral shape along the axis of the ventilating duct. The filter adopts a spiral structure, so that the filtering area is increased; meanwhile, the filter with the spiral structure has a diversion effect on the air flow, so that the air flow uniformly passes through the filter, the filtering speed of the air flow passing through the filter is reduced, the resistance loss is reduced, and the operation cost is reduced; the back blowing type cleaning can be realized by exchanging the positions of the air inlet baffle and the air inlet surface and exchanging the positions of the air outlet baffle and the air outlet surface, so that the filter can be reused; the filter element comprises a filter layer and a supporting net, and the supporting net is beneficial to increasing the strength and toughness of the filter element; the connecting flange can be directly arranged on a common circular pipeline, so that the step of reducing treatment is avoided, and the installation cost is saved.
Description
Technical Field
The invention relates to the field of air purification equipment, in particular to a filter.
Background
In the fields of electronic industry dust-free factory building purification systems, medical food aseptic workshop purification systems, central air conditioning systems, dust removal, smoke exhaust, oil absorption and other exhaust pipes for industrial pollution control, gas extraction and discharge systems for coal mine extraction and discharge, air supply and return systems for coal mine environment control and the like, in order to circulate air, ventilation pipelines are often required for reducing harmful gas concentration, and filters are often installed in the ventilation pipelines to achieve the aim of purifying air; the existing filter for the ventilating duct is generally a plate filter, a cylindrical filter or an annular cylindrical filter, the plate filter is not matched with the circular duct, and the reducing treatment is needed when the filter is used, so that the cost is high; the resistance loss of the cylindrical filter is larger, and the operation cost is higher; the filtering area is limited, and the filtering effect is limited; the annular cylindrical filter is not beneficial to the arrangement of the air inlet surface and the air outlet surface. Meanwhile, the existing filter for the ventilating duct is generally disposable or can be cleaned only by taking out the filter, so that the use cost is high, and the cleaning operation is troublesome. Therefore, a filter is needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a filter for a ventilating duct, which can increase the filtering area, improve the filtering effect, reduce the resistance loss, reduce the operation cost, conveniently realize back-flushing cleaning and save the cleaning cost and time.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a filter comprising a ventilation duct and a filter disposed within the ventilation duct, the filter extending in a spiral along an axis of the ventilation duct.
Preferably, one end of the ventilating duct is provided with an air inlet surface and an air inlet baffle, the other end of the ventilating duct is provided with an air outlet surface and an air outlet baffle, the air inlet surface and the air inlet baffle are combined to form a circular section of the ventilating duct, and the air outlet surface and the air outlet baffle are combined to form a circular section of the ventilating duct.
Preferably, the filter divides the inner space of the ventilating duct into an air inlet runner and an air outlet runner, the air inlet runner is communicated with the air inlet surface, and the air outlet runner is communicated with the air outlet surface.
Preferably, the air inlet baffle and the air outlet baffle are semicircular, and hinge pins are respectively arranged on the air inlet baffle and the air outlet baffle.
Preferably, two ends of the filter correspond to diameters of the air inlet baffle and the air outlet baffle respectively.
Preferably, the filter comprises a frame made of a ductile material and a filter element comprising a filter layer and a support mesh covering the surface of the filter layer.
Preferably, the inner wall of the ventilation pipeline is provided with a mounting groove matched with the spiral filter, and the frame is embedded into the mounting groove.
Preferably, a sealing strip is arranged between the frame and the mounting groove.
Preferably, a fixed steel wire is arranged between two ends of the filter, and the fixed steel wire is parallel to the axial direction of the ventilation pipeline.
Preferably, connecting flanges are arranged at two ends of the ventilation pipeline.
Compared with the prior art, the filter has the following beneficial effects:
(1) The filter extends in a spiral shape along the axis of the ventilation pipeline, so that the filtering area is increased; meanwhile, the filter with the spiral structure has a diversion effect on the air flow, so that the air flow uniformly passes through the filter, the filtering speed of the air flow passing through the filter is reduced, the resistance loss is reduced, and the operation cost is reduced;
(2) The air inlet baffle and the air outlet baffle are respectively provided with the hinge pins, the air inlet baffle and the air outlet baffle can rotate by using the hinge pins, and the back-blowing type cleaning can be realized by exchanging the positions of the air inlet baffle and the air inlet surface and exchanging the positions of the air outlet baffle and the air outlet surface, so that the filter can be cleaned without taking out, the repeated use of the filter is facilitated, and the cleaning time is saved;
(3) The filter has high toughness, can be rotated into a spiral shape, can be unfolded into a flat plate shape for transportation, and is convenient for respectively transporting the ventilating duct and the filter, thereby improving the transportation convenience; when in field installation, only the frame of the filter is pushed into the installation groove in the ventilating duct and is sealed by the sealing strip, so that the installation and the disassembly are convenient;
(4) The filter element comprises a filter layer and a support net covered on the surface of the filter layer, and the support net is beneficial to increasing the strength and toughness of the filter element;
(5) The connecting flange can be directly arranged on a common circular pipeline, so that the step of reducing treatment is avoided, and the installation cost is saved.
Drawings
FIG. 1 is a schematic view showing a filter structure according to embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view of a filter according to embodiment 1 of the present invention;
fig. 3 is an end view of a ventilation duct of a filter according to embodiment 1 of the present invention corresponding to an air inlet surface;
fig. 4 is an end view of a ventilation duct of a filter according to embodiment 1 of the present invention corresponding to an air outlet face;
FIG. 5 is a schematic view showing the structure of a filter element of a filter according to embodiment 1 of the present invention;
fig. 6 is a cross-sectional view of a filter according to embodiment 2 of the present invention.
Detailed Description
For a further understanding of the objects, construction, features, and functions of the invention, reference should be made to the following detailed description of the preferred embodiments.
Referring to fig. 1 to 6 in combination, fig. 1 is a schematic structural diagram of a filter according to embodiment 1 of the present invention; FIG. 2 is a cross-sectional view of a filter according to embodiment 1 of the present invention; fig. 3 is an end view of a ventilation duct of a filter according to embodiment 1 of the present invention corresponding to an air inlet surface; fig. 4 is an end view of a ventilation duct of a filter according to embodiment 1 of the present invention corresponding to an air outlet face; FIG. 5 is a schematic view showing the structure of a filter element of a filter according to embodiment 1 of the present invention; fig. 6 is a cross-sectional view of a filter according to embodiment 2 of the present invention.
A filter of embodiment 1 of the present invention includes a ventilation duct 1 and a filter 2 provided inside the ventilation duct 1, the filter 2 extending in a spiral shape along an axis of the ventilation duct 1, further, the filter 2 extending in a spiral shape along the axis of the ventilation duct 1 from one end of the ventilation duct 1 to the other end of the ventilation duct 1. The spiral structure of the filter 2 of the present invention is similar to the double-spiral structure of DNA, and the filter 2 extends in a spiral shape from one end of the ventilation duct 1 to the other end of the ventilation duct 1 along the axis of the ventilation duct 1, increasing the filtering area; according to the relation between the air quantity (Q), the air speed (V) and the area (A): q=v·a, the wind speed (V) and the area (a) are in inverse relationship at the same air volume, the larger the area of the filter, the lower the speed of the air flow passing through the filter; under the same air quantity, the filter 2 of the invention increases the filtering area through the spiral structure, thereby reducing the speed of air flow passing through the filter 2, further reducing the resistance of the filter 2, reducing the damage of the filter 2 and prolonging the service life of the filter 2.
In addition, as the filter 2 is in a spiral structure, the filter has a diversion effect on the air flow, so that the air flow passing through the filter 2 is uniformly distributed; the air flow has a delay loss (friction force between the fluid and the wall surface and between fluid particles is generated due to the influence of the viscosity of the air flow and the roughness of the wall surface when the fluid moves, the friction force which resists the movement of the fluid along the flow path is called as delay loss, and the energy loss generated by the movement of the fluid which overcomes the delay loss is called as delay loss), thereby being beneficial to reducing the filtering speed of the air flow passing through the filter 2, reducing the resistance of the filter 2 and reducing the resistance loss of the filter 2, and further being capable of reducing the operation cost. Further, noise can be reduced due to the reduced filtering rate of the air flow through the filter 2.
Preferably, one end of the ventilating duct 1 is provided with an air inlet surface 3 and an air inlet baffle 4, the other end is provided with an air outlet surface 5 and an air outlet baffle 6, the air inlet surface 3 and the air inlet baffle 4 are combined to form a circular section of the ventilating duct 1, and the air outlet surface 5 and the air outlet baffle 6 are combined to form a circular section of the ventilating duct 1. The air flow enters the ventilating duct 1 from the air inlet surface 3, is filtered by the filter 2, and is discharged from the air outlet surface 5; when the air flow passes through the air inlet surface 3, the air inlet baffle 4 has a blocking effect on the air flow, and the air flow has local loss, so that the speed of the air flow can be reduced, and the resistance of the filter 2 is reduced when the air flow passes through the filter 2.
Preferably, the filter 2 divides the inner space of the ventilation duct 1 into an air inlet runner 7 and an air outlet runner 8, the air inlet runner 7 is communicated with the air inlet surface 3, and the air outlet runner 8 is communicated with the air outlet surface 5. Because the filter 2 is in a spiral structure, the air inlet flow channel 7 and the air outlet flow channel 8 are both rotary flow channels, and have a diversion effect on air flow, so that the air flow uniformly passes through the filter 2, and the resistance of the filter 2 is reduced.
As the preferred embodiment of the invention, the air inlet baffle plate 4 and the air outlet baffle plate 6 are semicircular, the air inlet surface 3 and the air outlet surface 5 are semicircular, the air inlet baffle plate 4 and the air outlet baffle plate 6 are respectively provided with a hinge pin 9, the air inlet baffle plate 4 and the air outlet baffle plate 6 can respectively rotate or overturn around the corresponding hinge pins 9, and the positions of the air inlet surface 3 and the air inlet baffle plate 4 and the positions of the air outlet surface 5 and the air outlet baffle plate 6 can be interchanged; further, the two ends of the filter 2 correspond to the diameters of the air inlet baffle 4 and the air outlet baffle 6 respectively, and the air inlet baffle 4 and the air outlet baffle 6 play a supporting role at the two ends of the filter 2, so that the deformation of the filter 2 is reduced. In the preferred embodiment of the present invention, the hinge pins 9 are respectively disposed at the centers of the air inlet baffle 4 and the air outlet baffle 6, but the present invention is not limited thereto, and in other embodiments of the present invention, the hinge pins 9 may be disposed at other positions of the air inlet baffle 4 and the air outlet baffle 6, as long as the positioning of the hinge pins 9 can realize the functions of exchanging the positions of the air inlet surface 3 and the air inlet baffle 4 and exchanging the positions of the air outlet surface 5 and the air outlet baffle 6. When enough dust particles are deposited on the filter 2 and need to be cleaned, the filter 2 in the ventilating duct 1 can be cleaned by back blowing only by rotating the air inlet baffle 4 to the position of the air inlet surface 3 around the hinge pin 9 corresponding to the air inlet baffle, and rotating the air outlet baffle 6 to the position of the air outlet surface 5 around the hinge pin 9 corresponding to the air inlet baffle, namely, exchanging the air inlet surface 3 with the air inlet baffle 4 and exchanging the air outlet surface 5 with the air outlet baffle 6, and blowing down impurity dust and the like attached to the filter 2 without taking out the filter 2, thereby being beneficial to the repeated use of the filter and saving the cleaning time.
Preferably, the filter 2 comprises a frame 10 and a filter insert 11, the frame 10 being made of a ductile material, the filter insert 11 comprising a filter layer 12 and a support net 13 covering the surface of the filter layer 12, in different embodiments the support net 13 may be provided on both sides of the filter layer 12 or the support net 13 may be provided on only one side of the filter layer 12. Because the filter 2 adopts a spiral structure, and the requirement on toughness is high, the frame 10 of the filter 2 is made of a tough material, and the support net 13 on the surface of the filter layer 12 further increases the toughness and strength of the filter element 11.
Preferably, the inner wall of the ventilation duct 1 is provided with a mounting groove 14 matched with the spiral filter 2, and the frame 10 is embedded in the mounting groove 14; further, a sealing strip 15 is arranged between the frame 10 and the mounting groove 14. Since the filter 2 of the present invention has sufficient toughness, and can be developed into a flat plate shape or twisted into a spiral shape, the ventilation duct 1 and the filter 2 developed into a flat shape can be transported separately during transportation, thereby improving transportation convenience; during field installation, only the filter 2 is pushed into the ventilating duct 1, the frame 10 of the filter 2 is embedded into the mounting groove 14 of the ventilating duct 1 to form a spiral structure, and then the sealing strip 15 is used for sealing, so that the operation is simple and the installation is convenient.
Preferably, a fixing wire 16 is provided between both ends of the filter 2, the fixing wire 16 being parallel to the axial direction of the ventilation duct 1. The fixing wire 16 serves to increase the strength of the filter 2 and reduce the deformation of the filter 2. Further, the fixing wire 16 is provided along the axis of the ventilation duct 1 or along a bus bar of the ventilation duct 1. Referring to fig. 2, in embodiment 1 of the present invention, the fixing wires 16 are disposed along the axis of the ventilation duct 1, referring to fig. 6, in embodiment 2 of the present invention, the fixing wires 16 are disposed along the bus of the ventilation duct 1, and there are two fixing wires 16, but the present invention is not limited thereto, and in other embodiments of the present invention, the positions and the number of the fixing wires 16 may be set according to the actual situation.
Preferably, the ventilation duct 1 is provided with connection flanges 17 at both ends. The filter can be directly installed on a common circular pipeline by using the connecting flange 17, so that the step of reducing treatment of the conventional plate filter is omitted, and the installation cost and time are saved.
In summary, the present invention provides a filter, in which the filter 2 extends in a spiral shape from one end of the ventilation duct 1 to the other end of the ventilation duct 1 along the axis of the ventilation duct 1, thereby increasing the filtering area; meanwhile, the filter with the spiral structure has a diversion effect on the air flow, so that the air flow uniformly passes through the filter 2, the filtering speed of the air flow passing through the filter 2 is reduced, the resistance loss is reduced, and the operation cost is reduced; the air inlet baffle 4 and the air outlet baffle 6 are respectively provided with the hinge pin 9, the air inlet baffle 4 and the air outlet baffle 6 can rotate by using the hinge pin 9, and the back blowing type cleaning can be realized by exchanging the positions of the air inlet baffle 4 and the air inlet surface 3 and exchanging the positions of the air outlet baffle 6 and the air outlet surface 5, so that the filter 2 can be cleaned without being taken out, the repeated use of the filter 2 is facilitated, and the cleaning time is saved; the filter element 11 comprises a filter layer 12 and a supporting net 13 covered on the surface of the filter layer 12, and the supporting net 13 is helpful for increasing the strength and toughness of the filter element 11; the connecting flange 17 can be directly arranged on a common circular pipeline, so that the step of reducing treatment is avoided, and the installation cost is saved.
The invention has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. A filter, characterized in that: the filter is arranged in the ventilation pipeline and extends in a spiral shape along the axis of the ventilation pipeline; one end of the ventilating duct is provided with an air inlet surface and an air inlet baffle, the other end of the ventilating duct is provided with an air outlet surface and an air outlet baffle, the air inlet surface and the air inlet baffle are combined to form a circular section of the ventilating duct, and the air outlet surface and the air outlet baffle are combined to form a circular section of the ventilating duct; the filter divides the internal space of the ventilating duct into an air inlet runner and an air outlet runner, the air inlet runner is communicated with the air inlet surface, and the air outlet runner is communicated with the air outlet surface; the air inlet baffle and the air outlet baffle are semicircular, and hinge pins are respectively arranged on the air inlet baffle and the air outlet baffle; the two ends of the filter correspond to the diameters of the air inlet baffle and the air outlet baffle respectively.
2. A filter as defined in claim 1, wherein: the filter comprises a frame and a filter element, wherein the frame is made of a ductile material, and the filter element comprises a filter layer and a supporting net covered on the surface of the filter layer.
3. A filter as defined in claim 2, wherein: the inner wall of the ventilating duct is provided with a mounting groove matched with the spiral filter, and the frame is embedded into the mounting groove.
4. A filter as claimed in claim 3, wherein: and a sealing strip is arranged between the frame and the mounting groove.
5. A filter as defined in claim 1, wherein: and a fixed steel wire is arranged between the two ends of the filter and is parallel to the axial direction of the ventilation pipeline.
6. A filter as defined in claim 1, wherein: and connecting flanges are arranged at two ends of the ventilating duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415413.9A CN110227311B (en) | 2019-05-17 | 2019-05-17 | Filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415413.9A CN110227311B (en) | 2019-05-17 | 2019-05-17 | Filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110227311A CN110227311A (en) | 2019-09-13 |
| CN110227311B true CN110227311B (en) | 2024-01-09 |
Family
ID=67861356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910415413.9A Active CN110227311B (en) | 2019-05-17 | 2019-05-17 | Filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110227311B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137737B (en) * | 2021-02-08 | 2022-03-08 | 西安建筑科技大学 | Ventilating duct |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6348086B1 (en) * | 2000-02-16 | 2002-02-19 | 3M Innovative Properties Company | Combination blower wheel and filter cartridge system for HVAC applications |
| CN206950827U (en) * | 2017-06-30 | 2018-02-02 | 湖北华强科技有限责任公司 | A kind of tubular helical high efficiency particle air filter |
| CN108097060A (en) * | 2017-12-25 | 2018-06-01 | 合肥万呈鑫陶瓷膜科技有限公司 | A kind of ceramic membrane of good filtration effect |
| CN210728987U (en) * | 2019-05-17 | 2020-06-12 | 美埃(中国)环境科技股份有限公司 | Novel filter |
-
2019
- 2019-05-17 CN CN201910415413.9A patent/CN110227311B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6348086B1 (en) * | 2000-02-16 | 2002-02-19 | 3M Innovative Properties Company | Combination blower wheel and filter cartridge system for HVAC applications |
| CN206950827U (en) * | 2017-06-30 | 2018-02-02 | 湖北华强科技有限责任公司 | A kind of tubular helical high efficiency particle air filter |
| CN108097060A (en) * | 2017-12-25 | 2018-06-01 | 合肥万呈鑫陶瓷膜科技有限公司 | A kind of ceramic membrane of good filtration effect |
| CN210728987U (en) * | 2019-05-17 | 2020-06-12 | 美埃(中国)环境科技股份有限公司 | Novel filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110227311A (en) | 2019-09-13 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Address after: 210 000 Lanxia Road 101, Ziling Street, Jiangning District, Nanjing City, Jiangsu Province Applicant after: Meier (China) Environmental Technology Co.,Ltd. Address before: 210 000 Lanxia Road 101, Ziling Street, Jiangning District, Nanjing City, Jiangsu Province Applicant before: MAYAIR TECHNOLOGY (CHINA) Co.,Ltd. |
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