39results about How to "Good filter state" patented technology

The invention relates to a sweeping car with a single-cycle filtering system. The sweeping car comprises a car chassis, a draught fan, a pumping air flue, a pumping pipe, a pumping disc, a sweeping disc and a water spraying device, wherein the single-cycle filtering system is arranged on the car chassis; the single-cycle filtering system comprises a filter, a sewage tank, a clean water tank, a water pump and a connection pipeline; the sewage tank is connected with the water pump through a pipeline; the water pump is connected with one or more than one filters through a pipeline; the filter is connected with the sewage tank through a pipeline; the filter is provided with a clean water outlet; the clean water outlet is connected with the clean water tank through a pipeline; the filter is a ceramic film filter; the ceramic film filter is formed by arranging a ceramic film pipe in a sealed shell; the two ends of the sealed shell are respectively used as a sewage inlet and a sewage outlet which are connected with a pipeline; the sealed shell is provided with a clean water outlet. The sweeping car with the single-cycle filtering system, provided by the invention, can be widely used for environmental sanitation cars cleaning urban streets; the effective sweeping working time of the sweeping car can be greatly improved, the number of times of filling clean water into the working car at a water station and discharging sewage in a refuse dump is reduced; the purchasing and using cost of cars in a unit working area can be reduced, the emission amount of the sewage is reduced and the utilization rate of water resources is improved.

The invention relates to the field of water purifying equipment and discloses a carbon bar filter element component. The carbon bar filter element component comprises a filter element cylinder (1) and a filter element component (2) arranged in the filter element cylinder (1); a water passing clearance is reserved between the filter element component (2) and the filter element cylinder (1); the filter element component (2) comprises a carbon bar filter element (21), an upper filter element end cover (201) and a lower filter element end cover (202), wherein the upper filter element end cover (201) and a lower filter element end cover (202) are respectively arranged at the two ends of the carbon bar filter element (21); a carbon bar is bonded and fixed between the upper filter element end cover (201) and the lower filter element end cover (202) through a hot melt adhesive. The carbon bar filter element component disclosed by the invention has the benefits that through the structure design of the filter element component, the assembly strength of a whole ultra-filtration filter element is effectively enhanced, so that the ultra-filtration filter element can furthest increase the water passing amount of an ultra-filtration membrane; the carbon bar filter element component has a better filtering effect, can achieve a more excellent filtering state and is suitable for water supply to a water supply system of a household central water purifier.

The invention discloses a washing and sweeping vehicle with a double-circulation filter system. The washing and sweeping vehicle comprises a vehicle chassis, a draught fan, a suction air duct, a suction pipe, a suction plate, a brush plate and a water spraying device. According to the double-circulation filter system, a sewage box is connected with a first-stage water pump through a pipeline, the first-stage water pump is connected with a second-stage water pump through a pipeline, the second-stage water pump is connected with one or more filters. The filter is connected with the sewage box through a pipeline. A pressure regulation valve is arranged on the connection pipeline between the filter and the sewage box. The connection pipeline between the first-stage water pump and the second-stage water pump is connected with the connection pipeline between the filter and the pressure regulation valve through a pipeline. The clear water outlet of the filter is connected with a clear water box through a pipeline. The filter is a ceramic membrane filter which comprises a ceramic membrane pipe arranged in a sealed shell. The two ends of the sealed shell are used as a sewage inlet and a sewage outlet respectively to be connected with pipelines. A clear water outlet is formed in the sealed shell. By means of the washing and sweeping vehicle, the effective working time of environmental sanitation devices can be greatly prolonged, the sewage discharge amount can be decreased, and the utilization rate of water resources is increased.