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Back flushing filter device

A technology of backwashing and housing, applied in the direction of filtration and separation, fixed filter element filter, separation method, etc., can solve the problems of the water pump not working normally, the fastening bolts of the water pump impeller loosening, etc., and achieve compact structure and reasonable design Effect

Active Publication Date: 2012-07-04
HARBIN ONTOP DRAINAGE EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is easy to cause the fastening bolts of the water pump impeller to loosen, and the water pump cannot work normally.

Method used

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Embodiment Construction

[0013] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0014] Depend on Figure 1-Figure 4 It can be seen that the present invention includes a water storage tank 11, a housing 3 is installed in the water storage tank 11, and a filter orifice 4 is arranged in the cavity of the housing 3, and the cavity of the housing 3 is divided into two chambers, the first chamber 12 , the second chamber 13, a water inlet 2 is installed above the housing 3, and the water inlet 2 is connected with the one-way check valve 9 installed in the first chamber 12 through buckles, and the second chamber 13 is installed with The one-way check valve 8 is connected with the water outlet 5 installed on the casing 3 through buckles.

[0015] One end of the housing 3 is provided with an inspection port 1 , and the inspection port 1 is installed outside the water storage tank 11 . One end of the casing 3 is provided with a pre...

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PUM

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Abstract

The invention relates to a back flushing filter device, comprising a water storage tank, wherein the inside of the water storage tank is equipped with a housing, a filter pore plate is arranged in the housing cavity to divide the housing cavity into two chambers, i.e., a first chamber and a second chamber, a water inlet is arranged on the upper part of the housing, the water inlet is connected with a one-way check valve arranged in the first chamber through buckles, and the second chamber is provided with another one-way check valve which is connected with a water outlet arranged on the housing through buckles. The invention is characterized in that device has a compact structure and rational design, prevents sewage from getting into the water storage tank of the device through a water pump, which will result in that impellers of the water pump rotate reversely to make the bolts that fasten the impellers loosen and then fall off. The invention provides a flow passage of the sewage so that the sewage will directly enter the water storage tank of the device after getting into the back flushing filter device and being filtered without passing through the impellers of the water pump, thereby overcoming the shortage of the impellers of the water pump of the existing sewage discharging equipment rotate reversely when water inflows, which will cause the bolts that fasten the impellers to fall off.

Description

technical field [0001] The invention relates to a filtering and backwashing device, in particular to a filtering and backwashing device for sewage lifting and discharging equipment. Background technique [0002] At present, the filtration and recoil type sewage discharge equipment for underground buildings, because of its filtration and backwashing technology, will not cause the impeller of the water pump to contact with the sundries in the sewage, which can protect the water pump and prolong the service life of the water pump; there is no need to clean the sundries in the equipment It has the characteristics of clearing, running in a sealed state without polluting the use environment; it has been more and more used in sewage discharge projects of underground buildings. In the process of sewage entering the water tank of the equipment, the filtered sewage needs to flow through the outlet of the water pump, and then flow through the impeller of the water pump and the suction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D35/027B01D29/03B01D29/68
Inventor 贾东光董学武
Owner HARBIN ONTOP DRAINAGE EQUIP MFG
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