A sewage suction vehicle suction depth extending device and sewage suction vehicle

Abstract

The invention relates to a suction height range increasing device of a suction-type sewer scavenger. A male connector is arranged at the upper end of a fixed casing pipe, a female connector is arranged at the lower end of the fixed casing pipe, and a through hole is formed in the fixed casing pipe. A control unit, a range increasing unit and a sensing unit are sequentially arranged on the periphery of the fixed casing pipe from top to bottom. The control unit controls the range increasing unit to move and receives signal feedback of the sensing unit. The suction height range increasing device of the suction-type sewer scavenger can increase the dirt suction height of the suction-type sewer scavenger, meanwhile, the single dirt suction amount of the suction-type sewer scavenger cannot be lowered, and the ultrahigh promotional value is achieved.

Description

technical field [0001] The invention relates to the field of sewage suction equipment, in particular to a suction depth extending device for a sewage suction vehicle and a sewage suction vehicle. Background technique [0002] The sewage suction truck is a new type of sanitation vehicle that collects, transfers, cleans and transports sludge and sewage, and dredges the sewer. [0003] When the sewage suction truck sucks sewage, because one end of the sewage suction pipe is connected to the vacuum pipeline, a vacuum is formed in the pipeline, and the other end of the sewage suction pipeline is directly connected to the atmosphere. , the other end flows out. In the known technology, a standard atmospheric pressure = 760 mm Hg = 76 cm Hg = 1.013 × 10^5 Pascal = 10.336 meters of water column, so in an ideal vacuum state, the vertical depth of suction will not be greater than 10.336 meters. The sewage suction pipe of ordinary sewage suction trucks is generally above the tank body...

AI Technical Summary

Problems solved by technology

[0005] However, the disadvantage of the Venturi disk suction depth extender is that it needs additional high-pressure water as power, which increases the cost

The high-pressure water provided by the high-pressure water pump flows into the sewage tank together with the sewage through the Venturi plate suction depth-extending device, which reduces the space for the sewage tank to hold the sewage; and requires sufficient water source, without water source, it cannot work normally

[0006] At present, the existing single Venturi disk suction depth extender device has a small suction depth increase range, generally about 6 meters, and cannot achieve a deep well suction depth below 12 meters; if two Venturi disk suction depth extenders are used in series, the suction depth will increase. The depth increases, but the high-pressure water supply increases accordingly, and the effective sewage suction capacity of the sewage suction truck will be less

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