Sand removal filter device for fire hose

Abstract

The present invention relates to a sand removal filter device for a fire hose. The sand removal filter device comprises a filter shell, a sealing cover, a partition plate, a flow guide hood and a cleaning device, wherein the sealing cover is arranged above the filter shell; a water guide pipe which communicates with the inner cavity of the filter shell is arranged at the middle position of the sealing cover; the cleaning device is arranged at one side of the water guide pipe; a water inlet end of the water guide pipe is connected to a water inlet pipeline; and a water outlet pipe is arranged on the sealing cover and is located at one side of the water guide pipe. The cleaning device is arranged at one side of the water guide pipe, so that clean water flows into the flow guide hood throughthe cleaning device enters a filtration grille in a reverse direction, and sand and gravels concentrating on the filtration grille can be cleared.

Description

technical field [0001] The invention belongs to the technical field of fire-fighting equipment, and in particular relates to a sand-removing filter device for fire-fighting water pipes. Background technique [0002] When fire-fighting vehicles or fire-fighting pipelines are extinguishing a fire, they usually spray fire-fighting water in the open flame area to extinguish the fire. In order to increase the range of water spraying, fire-fighting water nozzles are usually installed on the fire-fighting water pipes to increase the distance of water spraying. At present, after the fire-fighting water flows into the fire-fighting water pipe from the fire-fighting water tank or the fire-fighting water supply pipeline, due to the lack of necessary filtering equipment, the mud and sand mixed in the water flow will flow into the fire-fighting water nozzle with the water flow, which will cause the blockage of the fire-fighting water nozzle and seriously affect the fire extinguishing wor...

AI Technical Summary

Problems solved by technology

At present, after the fire-fighting water flows into the fire-fighting water pipe from the fire-fighting water tank or the fire-fighting water supply pipeline, due to the lack of necessary filtering equipment, the mud and sand mixed in the water flow will flow into the fire-fighting water nozzle with the water flow, which will cause the blockage of the fire-fighting water nozzle and seriously affect the fire extinguishing work, causing damage to property or personal injury

[0003] Existing Chinese patent CN201720795463.0 A kind of desanding and filtering device for fire-fighting water pipe. Open the sand discharge valve to discharge the mud and sand; the water after filtering the mud and sand through the filter cartridge flows into the diversion chamber, then flows into the water collection chamber through the through hole, and finally flows into the fire outlet pipe from the outlet hole to be discharged for fire fighting, which improves the fire protection water flow The filtering effect can avoid mud and sand from clogging the fire nozzle, but it still has the following disadvantages: after the desanding filter is used, the inside of the filter cannot be cleaned

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