44results about How to "Reduce flushing water consumption" patented technology

The invention relates to a vacuum-assisted toilet, which adopts assisting vacuum for flushing so as to save water and deodor. The toilet comprises an exhaust fan which is started when a person uses the toilet to allow a gas injector arranged on an exhaust pipe to work. On one hand, the exhaust fan exhausts the odor in a washing room and particularly exhausts the odor given off by excrement discharged from a human body into a toilet basin at any time through the flushing in the toilet basin to reduce odor; and on the other hand, and gas at the position of the exhaust opening of the exhaust fanserves as a working medium to directly drive the gas injector arranged in the exhaust pipe to generate certain vacuum in an sewage pipe of the toilet, so that when the person leaves, the toile discharges the excrement under the actions of the pressure of flushing water, the self gravity of the excrement and the vacuum in the sewage pipe. Under the action of the vacuum, water consumption is reduced and an aim of saving water is fulfilled.

The invention relates to a nanofiltration-forward osmosis combination system adopting a commercial nanofiltration membrane and a forward osmosis membrane, and an application thereof. A nanofiltration system adopts crossflow filtration of water flowing through two sides of the nanofiltration membrane, the filtering pressure difference and the circulation flow rate are adjusted through the frequency converter of a gear pump, and a PLC is used to carry out total control. Valve adjustment is carried out to control the reflux quantity of concentrated water in order to obtain different recovery rates. Nanofiltration freshwater outlet water is determined by a mass flow meter controlled by the PLC, and the obtained determination result is stored in a PLC memory cell in order to record and obtain the flux of osmosis water. The temperature of nanofiltration inlet water is controlled by a water bath tank, and is same to the temperature of a forward osmosis system, and concentrated water of the nanofiltration system flows out to the raw material liquid tank of the forward osmosis system. A raw material liquid is placed on a balance connected to a computer, and the change of the weight of the raw material liquid in a preset time interval is transmitted to the computer. The temperatures of the raw material liquid and a driving liquid are controlled by the water bath tank, and are same to the temperature of the nanofiltration system. The flow rate designed by the system is 60 L / h, and the removal rate of dissolved organic matters is greater than 90%. The membranes can be regularly replaced, and the system can be regularly cleaned.

The invention discloses a filter tank, which relates to the technical field of water treatment, in particular to a filter tank with an annular filter assembly. The filter tank aims at the problems that an existing filter tank is large in occupancy, large in backflushing water using amount and complex in operation and cannot meet requirements of middle and large water treatment equipment. The filter tank comprises a casing, the annular filter assembly, a backflushing assembly and a rotary mechanism, wherein a raw water inlet pipe and a clean water outlet pipe are arranged at the bottom of the casing, the annular filter assembly is arranged in the casing, the backflushing assembly is matched with the annular filter assembly, the rotary mechanism is connected with the backflushing assembly to be driven to rotate, the raw water inlet pipe is communicated with an inner cavity of the casing, an inner cavity of the annular filter assembly is communicated with the clean water outlet pipe to be used for filter raw water in the casing into clean water to be outputted from the clean water outlet pipe, and the backflushing assembly is used for washing the annular filter assembly and exhausting slurry out of the filter tank. The filter tank is especially applied to efficient filter equipment in small and medium water treatment projects.

The variable, double, straight-line piping type of water-saving toilet of the present invention comprises: a main toilet body (10) having a bowl (11), a cistern (12), a water-supply pathway (13) connected to the rear of the bowl (11) from the cistern (12), and a cover part (14) which covers the lower part of the cistern (12) and the rear of the bowl (11) and is adapted to guide foul water discharged from the bowl (11) to a floor pipe (15); a variable, double, straight-line pipe (20) incorporating an inner pipe (21) of which one end is connected via a flexible tube (25) to the discharge port (13a) of the bowl (11), an outer pipe (22) which receives part of the inner pipe (21) on the inside thereof and which is equipped with spring-securing parts (22a) on the outside surface on two sides, and a connecting part (23) which forms a receiving space (23a) where cleaning water is received between the inner pipe (21) and the outer pipe (22), the pipe (20) being adapted so as to discharge the foul water and the cleaning water in the bowl (11) by rotating downward under its own weight due to the inflow of cleaning water into the receiving space (23a) because of the increase in cleaning water flowing into the bowl (11) during foul-water discharge; two brackets (30) which are secured either vertically or horizontally on both sides of the rear wall (11b) of the bowl (11), and are equipped with spring-fastening parts (31); and tension springs (40) which exhibit a resilient restoring force such that the variable, double, straight-line pipe (20) rotates upwards after foul-water discharge.

A paper pulping bleaching and waste purification integration technology comprises two technology stages of paper pulping bleaching and waste water purification; wherein the paper pulping bleaching technology stage comprises: (1) slicing; (2) solution preparing; (3) initial reaction by adding enzyme and medicament; (4) deep reaction by adding medicament; (5) sieving, sedimentation and grinding; and (6) pulp washing, bleaching and stabilizing to obtain paper pulp finished product; and the waste water purification technology stage comprises: (1) purification, sedimentation and separation; and (2) concentration, drying and sediment recovery. The invention combines chemistry and biology, pulping and bleaching are completed in the same container in an integration way, neither chorine element isrequired nor black liquor is produced during pulping and bleaching, COD, BOD, SS and chrominance in pulping water are reduced to the utmost extent, waste water of pulping can be reused in pulp washing after purification treatment, and finally zero discharge or standard discharge of the whole waste water of pulping is realized.

The invention provides a device for cleaning replaced insulators and belongs to the technical field of insulator cleaning in electric power facilities. A tank unit is arranged below a portal frame and comprises a cleaning tank and a flushing tank arranged in the front-back direction. A sliding block transmission mechanism is arranged at the upper end of the portal frame. A lifting driving motor provided with a lead screw is installed at the upper end of a sliding block. A U-shaped seat and the lead screw are matched to form a lead screw-sliding block transmission mechanism. Supporting arms are arranged at the two vertical arm ends of the U-shaped seat. A clamping set unit comprises a base plate, a static clamping plate fixed to the base plate, and a movable clamping plate correspondingly matched with the static clamping plate. The movable clamping plate is buckled on the static clamping plate through a movable structure. A fixing part is arranged between the movable clamping plate and the base plate, and the movable clamping plate and the base plate are fixedly connected through the fixing part. By the adoption of the device for cleaning the replaced insulators, batched concentrated cleaning can be conducted on the detached insulators, in the cleaning process, workers are mainly responsible for mounting and dismounting the insulators, the workers do not need to stay on the site all the time in the cleaning process, the working intensity of the workers can be relieved, and the cleaning operation efficiency is improved.