Filter system with gel seal and interior air filter having such a filter system
阅读说明:本技术 带有凝胶密封件的过滤系统和具有这种过滤系统的内室空气过滤器 (Filter system with gel seal and interior air filter having such a filter system ) 是由 M·西 M·奇恩塞德 于 2019-05-08 设计创作,主要内容包括:本发明涉及一种过滤系统(10)和这种过滤系统的应用,并且本发明用于过滤空气流。根据本发明的过滤系统(10)具有第一过滤级中的过滤元件(1)和用于容纳所述过滤元件(1)的壳体(20),所述过滤元件(10)具有过滤材料(2)。在所述过滤元件(1)和所述壳体(20)之间有利地设置环绕的凝胶密封件(4),用于相对于壳体(20)密封所述过滤元件(1)。所述凝胶密封件特别是涉及成凝胶通道(4.1)。通过这种过滤系统(10)确保了能操作简单地安装过滤元件(1)和在装配状态下无泄漏的密封。(The invention relates to a filter system (10) and to the use of such a filter system, and is used for filtering an air flow. The filter system (10) according to the invention has a filter element (1) in a first filter stage and a housing (20) for accommodating the filter element (1), the filter element (10) having a filter material (2). Between the filter element (1) and the housing (20), a circumferential gel seal (4) is advantageously provided for sealing the filter element (1) relative to the housing (20). The gel seal is particularly directed to a gel forming channel (4.1). The filter system (10) ensures an easy-to-handle installation of the filter element (1) and a leak-free seal in the assembled state.)
1. A filtration system (10) having: a filter element (1) in a first filter stage, the filter element (10) having a filter material (2) for filtering an air flow; and a housing (20) for accommodating the filter element (1), characterized in that a circumferential gel seal (4) is provided between the filter element (1) and the housing (20) for sealing the filter element (1) relative to the housing (20).
2. A filter system according to claim 1, wherein the gel seal (4) has a gel passage (4.1).
3. A filter system according to claim 2, characterised in that the filter system (10) has a surrounding insert plate (5) which is embedded in the gel channel (4.1), and that the filter system (10) has a surrounding cover element (6) for covering the gel channel (4.1) on the raw gas side (a) of the filter system (10).
4. A filtering system according to claim 3, wherein the insert plate (5) is made by:
end folds (3.1) and/or of the filter material (2)
Edge strips (7) fixed, in particular glued, to the pleat packs (3) and/or plates (8.1) projecting from the filter frame (8) and/or
A plate (20.1) projecting from the housing (20)
And (4) forming.
5. A filter system according to claim 3 or 4, wherein the cover element (6) is passed through
Strip-shaped sheet structures (3.2) on end folds (3.1) of the filter material (2) and/or strip-shaped sheet structures (7.1) fixed, in particular glued, to edge strips (7) on the fold groups (3) and/or
Filter frame (8) for holding a filter element (1) and/or
Sealing element (9) mounted on the filter element (1) and/or
Casing (20)
And (4) forming.
6. The filtration system according to one of claims 2 to 5, characterized in that the surrounding gel channel (4.1) is mounted on the filter element (1) or the housing (20).
7. A filter system according to one of the preceding claims, wherein the filter material (2) is configured as a pleated set of pleats (3).
8. The filter system according to one of the preceding claims, characterized in that at least one further filter element (1) is provided in a further filter stage, the further filter element (1) having a filter material (2) for filtering an air flow, a further circumferential gel seal (4) being provided between the first filter element and the at least one further filter element (1) for sealing the filter elements (1) relative to one another.
9. The filter system according to one of claims 1 to 7, characterized in that at least one further filter element (1) is provided in the further filter stage, the further filter element (1) having a filter material (2) for filtering an air flow, a circumferential gel seal (4) being provided between the respective filter element (1) and the housing (20) in each case for sealing the respective filter element (1) relative to the housing (20).
10. Use of a filter system according to one of the preceding claims as an interior air filter for filtering cabin air supply in a vehicle.
11. Use of a filtration system according to claim 10 as a fresh air filter for filtering cabin air supply in a vehicle for agricultural use.
12. Use of a filter system according to claim 10 or 11, with a filter system according to one of claims 1 to 7, wherein the filter element is installed in the first filter stage.
Technical Field
The invention relates to a filter system according to the preamble of
Background
When using a filter system in air filtration, it is important that the filter is well sealed with respect to the housing guiding the air and thereby it is ensured that air does not pass between the housing and the filter. No bypass should be present and a leak-free seal should be present.
In order to meet this requirement, US 2009/0056293 a1 proposes an air filter system having frame elements which engage in one another and, as filter element, an additionally projecting sheet structure of filter material. Such air filter systems on the one hand have a complex construction. On the other hand, great care must be taken in installing the filter without damaging the additional sheet structure. Otherwise bypass may occur and affect the efficiency of the filtration system.
Other methods for sealing filters are also known from the prior art. A gel passage with an insert plate embedded therein is installed in a housing of an air conditioning device for a clean room. Such a filter is described, for example, in EP 2149405B 1. However, this sealing solution cannot be used in the first filtration stage, since particles are entrained in the gel by the untreated gas and rapid aging of the gel also occurs. This sealing solution does not allow a leak-free sealing.
Disclosure of Invention
The object of the invention is to provide a filter system which ensures a leak-free seal while allowing an easy-to-handle installation of the filter element.
This object is achieved by a filter system having the features of
The filter system according to the invention has a filter element and the filter element is installed in the first filter stage. The first filtration stage here means that the raw gas to be filtered is applied directly, i.e. without a prefilter, to the filter element and is filtered there for the first time. The filter system may have additional filter elements in other downstream filter stages. Furthermore, the filter system has a housing for accommodating the filter element. The filter element has a filter material for filtering an air flow. A gel seal is advantageously arranged between the filter element and the housing, around the filter element, in order to seal the filter element relative to the housing. The gel seal can be designed in particular as a gel channel, that is to say as a channel-like channel with gel filling, in which case, for example, PU or silicone can be used as gel. The filter system advantageously has an insert plate which surrounds the filter element and which, in the installed state of the filter in the housing, is inserted into the gel seal, i.e. into the gel filling of the gel channel, and a cover element which surrounds the filter element and is intended to cover the gel channel on the raw gas side of the filter system. The cover element helps to prevent or at least reduce the introduction of dirt, such as dust, due to the air flow. In such a filter system, a simple assembly of the filter element is achieved and at the same time a leak-free seal is ensured.
In order to achieve an effective sealing and to reduce the entrainment of dirt into the gel in the gel channel, it has been found that the gel channel, the insert plate and the cover element have the same shape in plan view, so that the insert plate can be inserted approximately centrally into the gel channel and the part of the gel channel between the insert plate and the boundary of the gel channel which is open toward the raw gas side is covered by the cover element.
In an advantageous development of the filter system according to the invention, different designs of the insert plate can be used:
in a first variant, the insert plate is formed by an end fold of the filter material which is longer relative to the remaining fold section.
In a second variant, the insert plate is formed by an edge strip glued to the set of folds.
In a third variant, the insert plate is formed by a plate sheet projecting from the filter frame for holding the filter element, that is to say by a plate sheet similar to a flange, and is shaped as a strip projecting with respect to the surface of the filter frame.
In a fourth variant, the insert plate is formed by a plate projecting from the housing, said plate being designed as a strip projecting with respect to the surface of the housing.
If the filter element has a hexahedral basic configuration, the insert plate can, in a preferred embodiment, be formed on two opposite sides by the end folds of the filter material and on the other two sides by the edge strips. This embodiment has the advantage of a particularly low material usage.
In an alternative, likewise particularly advantageous embodiment, the insert plate is formed exclusively by the edge strip. This embodiment has the advantage that the filter system can be produced particularly simply. Other combinations of the variants described above are also conceivable for forming the insert plate.
In an advantageous development of the filter system according to the invention, the cover element can have different shapes.
In a first variant, the covering element is formed by a strip-like sheet structure on the end folds of the filter material, for example by a V-shaped sheet structure. Here, a V-shaped sheet structure refers to a fold section which projects at an angle to the end fold, in which case the sheet structure is material-uniform and integral with the filter material.
In a second variant, the covering element is constituted by a strip-like sheet structure, for example by a V-shaped sheet structure, glued to the edge strip on the set of folds. Here, a V-shaped sheet structure refers to a corrugated section which projects at an angle to the edge strip, in which case the sheet structure is material-uniform and integral with the edge strip.
In a third variant, the covering element is constituted by a filter frame for holding the filter element.
In a fourth variant, the covering element is constituted by a separate sealing element mounted on the filter element.
In a fifth variant, the covering element is constituted by the casing itself.
If the filter element has a hexahedral basic configuration, the insert plate can, in a preferred embodiment, be formed on two opposite sides by strip-like sheet structures on the end folds of the filter material and on the other two sides by strip-like sheet structures on the edge strips. This embodiment has the advantage of a particularly low material usage.
In an alternative, likewise particularly advantageous embodiment, the insert plate is formed exclusively by strip-shaped sheet structures on the edge strip. This embodiment has the advantage of particularly simple and economical production. Other combinations of the variants described above for forming the covering element are also conceivable.
With regard to the positioning of the gel channels, there are two different possibilities. The circumferential gel channel can be arranged on the filter element or on the housing. Each of these two possibilities can bring different advantages. In a particularly simple manner, the gel channel can be renewed in conjunction with the replacement of the filter element when the circumferential gel channel is positioned on the filter element. The advantage of positioning the surrounding gel channel on the housing is that the gel channel can continue to be used despite the replacement of the filter element. One of the two possibilities can be chosen according to the place of use of the filtering system and the degree of pollution of the air stream to be purified and the environmental conditions.
In a particularly advantageous development of the filter system, the filter material can be designed as a pleated set of folds, as a so-called set of folds with zigzag-shaped bellows made of organic or inorganic nonwoven.
The invention also relates to a filter system having at least one further filter element in a further filter stage. The further filter element has a filter material for filtering the air flow. That is, the filtration system is configured in multiple stages.
In a first variant, a further circumferential gel seal is provided between the first filter element and the at least one further filter element for sealing the filter elements relative to one another.
In a second variant, a circumferential gel seal is provided between the respective filter element and the housing in each case for sealing the respective filter element relative to the housing.
The invention also relates to the use of a filter system as described above as an interior air filter for filtering cabin air supply in a vehicle. The filtration system may be used for fresh air filtration or recycled air filtration. The vehicle may in particular be a vehicle used in agriculture, such as a tractor or a harvester.
The described invention and the described advantageous developments of the invention can also be combined with one another to form advantageous developments of the invention, as long as they are technically reasonable.
For further advantages and advantageous embodiments of the invention with regard to design, both as regards structure and function, reference is made to the dependent claims and to the description of the exemplary embodiments with reference to the drawings.
Drawings
The invention is explained in more detail below with reference to the drawings. In the drawings, elements and members corresponding to each other are provided with the same reference numerals. To make the drawings clearer, drawings are not drawn to scale.
Wherein, respectively with the schematic diagram:
fig. 1 shows a first embodiment of a filter system according to the invention;
fig. 2 shows a second embodiment of the filter system according to the invention;
fig. 3 shows a third embodiment of the filter system according to the invention;
fig. 4 shows a first embodiment of the filter system according to the invention;
FIG. 5 shows a fifth embodiment of a filtration system according to the present invention;
fig. 6 shows a sixth embodiment of the filter system according to the invention;
fig. 7 shows a seventh embodiment of the filter system according to the invention;
fig. 8 shows an eighth embodiment of the filter system according to the invention;
FIG. 9 shows a filtration system according to the invention with two filtration stages;
fig. 10 shows a filtration system according to the invention with three filtration stages.
Detailed Description
The present invention relates to a
Fig. 1 shows a first embodiment of a
Fig. 2 shows a similar embodiment of the
In the embodiment of the
Alternatively, the cover element 6 can also be realized by providing additional sheet structures 3.2 on both sides of the end fold 3.1, as is shown in fig. 4. To this end, a further fold is introduced into the end fold 3.1, which fold forms a sheet structure 3.2 that rests with its underside on the edge of the gel channel 4.1. Dirt can thereby also be prevented from entering the gel channel 4.1.
In the embodiment of the
Fig. 6 shows an alternative variant for forming the cover element 6. This variant can be combined with the variant described above for the
Fig. 7 shows a further variant for forming the cover element 6. Here, the
In all embodiments according to fig. 6 to 7, the gel channel 4.1 is provided on the
In the
Fig. 9 shows a
Fig. 10 shows a
In the embodiment of the filter system with a plurality of filter stages, the
List of reference numerals
1 Filter element
2 Filter Material nonwoven Fabric
3 pleated fold group
3.1 end creases
3.2 sheet Structure
4 gel seal
4.1 gel channels
4.2 gels
5 plugboard
6 covering element
7 edge strip
7.1 sheet construction
8 Filter frame
8.1 plates
9 sealing element
10 filtration system
20 casing
20.1 plates
A untreated gas side
B gas side of purification
- 上一篇:一种医用注射器针头装配设备
- 下一篇:可穿戴空气净化器