bag filter element
A filter element and element technology, applied in the field of manufacturing filter elements, can solve the problems of high structural cost, high cost of manufacturing method, high cost of manufacturing process, etc.
Active Publication Date: 2021-04-20
CARL FREUDENBERG KG
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Problems solved by technology
The disadvantage here is that the manufacturing method is more expensive, since the frame has to be produced in a first step by embedding the reinforcement in the polyurethane, and the filter bag is attached to the frame by foaming in a further step
Also disadvantage: additional material required for foaming
However, the filter bag has the disadvantage that the spacer must be glued or welded to the walls of the filter bag in an additional manufacturing step
However, the corresponding shape is dependent on the fluid flow and therefore does not solve the problem of collapse of the filter bag at low volume flows
Furthermore, sewing the support to the wall of the filter bag implies an additional and expensive manufacturing process
[0008] The prior art therefore generally has the disadvantage that high constructional costs are required in order to ensure a tight connection between these elements by clamping the filter bag to the frame structure
Furthermore, the bag filter elements known in the prior art have the disadvantage that in order to seal the connection between the frame of the bag filter element and the filter housing in which the bag filter element is installed , additional sealing elements are required to ensure a tight fit and thus effective filtration
Method used
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[0055] as in figure 1 with figure 2 As shown in , the disclosed filter element comprises a frame 1 and a filter bag 2, wherein the frame 1 has a surrounding elastomer body 3 into which reinforcing elements 4 are embedded. The frame 1 is connected to the opening of the filter bag 2 and surrounds the opening of the filter element. The reinforcing element 4 is partially surrounded on the outside by the filter bag 2 . The filter bag 2 tapers from the open end to the closed end. The connection between the filter bag 2 and the frame 1 is effected materially by means of the elastomer body 3 . The connection between the elastomer body 3 and the reinforcing element 4 is likewise realized in a materially bonded manner. In this case, the elastomer body 3 encloses both the reinforcement element 4 and the filter bag 2 on the outside of the frame 1 .
[0056] The filter element has spacer elements 5a, 5b which protrude into the filter bag 1 . exist figure 1 with figure 2 In this c...
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Abstract
The invention relates to a filter element comprising a frame and a filter bag, wherein the frame has a surrounding elastomer body in which a reinforcing element is embedded, wherein the frame is connected to the opening of the filter bag and is bonded materially via the elastomer body realize the connection. Furthermore, the invention relates to a method for producing a filter element, the use of the filter element and a device comprising the filter element.
Description
technical field [0001] The invention relates to a filter element comprising a frame and a filter bag, wherein the frame has a surrounding elastomer body into which reinforcing elements are embedded, wherein the frame is connected to the opening of the filter bag and the connection is made through the elastomer body material Locked to achieve. Furthermore, the invention relates to a method for producing a filter element, the use of the filter element and a device comprising the filter element. Background technique [0002] Filter elements of this type are often referred to as bag filters. They are used to filter fluids, especially air. For this purpose, the filter element is usually inserted into the filter housing. In order to ensure effective filtration, not only the connection of the filter bag to the frame within the filter element, but also the connection between the frame of the filter element and the filter housing must have a high degree of tightness. To ensure th...
Claims
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IPC IPC(8): B01D46/02
CPCB01D46/0001B01D46/0005B01D46/02B01D46/0002B01D46/023B01D2265/06
Inventor M·西F·赫贝格H·维甘德
Owner CARL FREUDENBERG KG