Rapid blowdown device for pre-filter

Abstract

The invention discloses a quick blowdown device for a pre-filter, and relates to the technical field of liquid filtering equipment, and the quick blowdown device is characterized by comprising a body, a filter cup, a filter element and a control device, the body is provided with a water inlet runner and a water outlet runner, the filter cup is connected with the body, and the filter cup is provided with a raw water cavity communicated with the water inlet runner; the filter element is arranged in the raw water cavity and communicated with the water outlet flow channel, and the control device can control connection and disconnection between the raw water cavity and the outside; the blowdown device comprises a supporting shell, an impeller and a cleaning frame, the supporting shell is arranged in the raw water cavity, a flow guide part is arranged on the supporting shell, the impeller is rotationally arranged in the supporting shell, the flow guide part can guide water flow to impact the impeller, and the cleaning frame is arranged on the outer side of the filter element and connected with the impeller. In the pollution discharge state, sewage impacts the impeller after being guided by the flow guide part, so that the impeller and the cleaning frame rotate simultaneously, the flow guide part and the cleaning frame jointly drive the sewage in the raw water cavity to rotate, the sewage discharge speed is increased, and pollution discharge is efficient.

Description

technical field [0001] The invention relates to the technical field of liquid filtering equipment, in particular to a quick sewage discharge device for a pre-filter. Background technique [0002] The pre-filter is generally the first coarse filtration device for water in the whole house, which can effectively filter large particles such as sediment, rust, and algae in tap water; therefore, the filter element of the pre-filter is easy to attach sediment, rust, Large particles will lead to a smaller water flow, which will lead to a decrease in the filtering effect. In severe cases, it will also cause the filter on the filter element to be clogged. It is necessary to disassemble the filter element for cleaning or replace the filter element frequently. [0003] At present, in the prior art, the filter element is cleaned by direct flushing, backwashing, and brush flushing to ensure the filtering effect of the filter element. However, the above cleaning methods only focus on the c...

AI Technical Summary

Problems solved by technology

[0002] The pre-filter is generally the first coarse filtration device for water in the whole house, which can effectively filter large particles such as sediment, rust, and algae in tap water; therefore, the filter element of the pre-filter is easy to attach sediment, rust, Large particles lead to less water flow, which in turn reduces the filtering effect. In severe cases, the filter on the filter element will be clogged, and the filter element needs to be disassembled and cleaned or replaced frequently.

[0003] At present, in the prior art, the filter element is cleaned by direct flushing, backwashing, and brush flushing to ensure the filtering effect of the filter element. However, the above cleaning methods only focus on the cleaning effect, and the sewage in the filter is discharged slowly and The method is unreasonable, resulting in more impurities remaining in the filter discharge process, so it is necessary to increase the sewage discharge time to achieve the purpose of discharging all the impurities in the filter, which is time-consuming and consumes water resources

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