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Backflushing filter

A backwashing and filter technology, which is applied in the direction of membrane filter, fixed filter element filter, filtration separation, etc., can solve the problems of limited cleaning effect of suction elements and inability to ensure the cleaning of filter candles, and achieve improved suction results, Avoid maintenance costs and ensure the effectiveness of the filtering function

Active Publication Date: 2019-04-02
倍世水技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage here is that the rotational movement is limited by the maximum stroke of the piston of the suction element, which limits the cleaning action of the suction element, especially for dirt particles that adhere relatively firmly to the filter candle
Therefore, despite the backflush function on the backflush filter, a constant cleaning of the filter candles cannot be ensured, which disadvantageously requires an increased maintenance effort for the backflush filter with respect to its filter candles

Method used

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Examples

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Embodiment Construction

[0031] According to press figure 1 , 2 Backwash filters 1 and 101 shown at , 5 and 6, the inlet 2 for the liquid to be filtered 3, in particular drinking water, and the outlet 4 for the filtered liquid 5 can be seen. In order to filter the liquid 3 , a filter cartridge-shaped filter 6 , 106 is provided in the backwash filter 1 or 101 , which divides the housing 7 of the backwash filter 1 , 101 into the inlet chamber 8 connected to the inlet 2 and the Outlet port 9 connected to outlet 4 . The housing 7 of the backwash filter 1, 101 consists of an upper part 7.1 and a filter cover 7.2 which can be removed from the upper part 7.1.

[0032] according to figure 2 , in order to backwash the backwash filter 1, 101, the backwash filter is designed with an outflow part 10, figure 2 or Image 6 The liquid 11 to be discharged together with possible dirt particles (which are not shown in detail) can be discharged through the outflow 10 . The liquid 11 to be discharged is extracted i...

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Abstract

What is specified is a backflushing filter (1, 101) having an inlet (2), an outlet (4) and a drain (10), having a filter (6, 106), having a housing (7) that is divided by the filter (6, 106) into an inlet chamber (8) connected to the inlet (2) and into an outlet chamber (9) connected to the outlet (4), and having a backflushing device (12) which has an aspiration element (13, 113), arranged so asto be able to rotate on the inlet side of the housing (7) around the filter (6, 106), with at least one suction opening (14) that is oriented in the suction direction (15) towards the filter (6, 106)for the purpose of cleaning the filter, and also a backflushing duct (16) connected to the suction opening (14) and the outlet (4), and a rotating device (17) that drives the rotational movement of the aspiration element (13, 113) about the filter (6, 106) when there is a drop in pressure in the backflushing duct (16). This produces a backflushing filter which is easy to handle and easy to maintain and in which, when there is a drop in pressure in the backflushing duct (16), the rotating device (17) drives the rotational movement of the aspiration element (13, 113) as a result of the suction direction (15) of the suction opening (14) that is inclined with respect to the radial direction (19) of the aspiration element (13, 113).

Description

technical field [0001] The invention relates to a backwashing filter, which has an inlet, an outlet and an outlet, a filter, a housing divided by the filter into an inlet chamber connected to the inlet and an outlet chamber connected to the outlet, It also has a backwashing device with a suction element arranged in the housing so as to be rotatable about the filter on the inlet side, the suction element having at least one suction element oriented in the suction direction towards the filter. A suction opening for filter cleaning, and the backwashing device also has a backwashing channel connected with the suction opening and the outlet, and a rotating device that drives the suction element to rotate around the filter when the pressure in the backwashing channel drops. Background technique [0002] In order to facilitate the cleaning of the filter candles of the backwash filter during backwashing of the backwash filter, it is known from the prior art (DE 4343180 A1) to use th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/68
CPCB01D29/688B01D29/682B01D2201/082B01D2201/583B01D29/23B01D29/66B01D2201/29
Inventor 于尔根·约翰安东·迈尔霍费尔
Owner 倍世水技术股份有限公司
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