43results about How to "Effective water saving" patented technology

The invention discloses a high-ammonia-nitrogen wastewater reutilization zero-discharge treatment method and device of a membrane aeration and membrane absorption coupling technology and belongs to the field of environmental engineering. About 60% of ammonia nitrogen in ammonia-nitrogen wastewater is removed first in a membrane aeration mode, then about 99% of remaining ammonia nitrogen in the wastewater is removed in a membrane absorption multistage ammonia removal mode, and thus the high-ammonia-nitrogen raw water can be directly discharged after being treated; ammonia gas separated out from a membrane aeration system is directly introduced into an absorption liquid tank for the membrane absorption process to react with and remove excess acid in the absorption liquid tank; treated absorption liquid is introduced into a by-product recovery system to treat high-concentration absorption liquid. When the operating capability is reduced to 70% the original operating capability or long-time shutdown is needed, it is needed to start a cleaning-air purging system to maintain and clean the systems so that the systems can be kept stably operating for a long time.

The invention relates to a novel water purifier. Arrangement of a multi-cavity water storage tank and a high-low voltage switch parallel control system and installation of a double-control purified water faucet make purified water obtained and realize recycling and reuse of concentrated water, so the utilization rate and the recovery rate of water are improved, and the electric energy consumptionis greatly reduced; and the double-control purified water faucet is connected with a purified water chamber, so when the double-control faucet is turned on to take purified water, the double-control faucet also opens a pipeline crossing a concentrated water reflux ratio to ensure that the water purifier automatically cleans a purification membrane without producing water, thereby the long-life useof the purification membrane is ensured at a high purified water recovery rate, and the service life of a core element is prolonged. The novel water purifier provided by the invention has the advantages of convenience in use, small occupied land, no maintenance, improvement of the temperature of inlet water, storage of purified water and raw water, stabilization of the water pressure, and increase of the filtering efficiency.

The invention discloses a curing room for concrete test piece detecting, and relates to the technical field of concrete test piece detecting. The curing room comprises a curing room body, a temperature controlling device and a humidity keeping device, wherein a plurality of maintenance points are uniformly arranged in the curing room body at intervals, each maintenance point is provided with a date mark, and each date mark corresponds to first to thirty-first in one month respectively, and the concrete test pieces of different batches are respectively arranged at maintenance points corresponding to the corresponded maintenance deadline; each curing point is provided with a curing frame, and any curing frame comprises a plurality of containing layers which are arranged at intervals in an up-down mode. The curing room for concrete test piece detecting has the advantages that the arrangement of the concrete test pieces is orderly, the temperature and humidity control accuracy is high, andthe water can be effectively saved, and the maintenance operation convenience of the concrete test pieces can be greatly improved.

The invention provides a water-saving regulating valve which comprises a valve body 1, a valve element 2, a compressing cover 3, a compressing cap 4, a regulating cover 5 and a regulating rod 6. A water passage is arranged in the middle of the valve element, a water inlet groove is formed in the side face of the valve element, a water outlet is formed in the end face of the valve element, and a water outlet blocking piece is arranged in the middle of the water outlet. A water inlet is formed in the side face of the valve body. A water outlet is formed in the side face of the regulating cover, a regulating rod inserting hole is formed in the end face of the regulating cover, and the regulating rod inserting hole is in butt joint with the water outlet of the regulating cover, and is used for allowing the regulating rod to be inserted. An inward concave regulating rod water tank is formed in one end of the regulating rod, and has the function of limiting flow. After the regulating rod is inserted into the regulating rod inserting hole, the regulating rod water tank is communicated with a water outlet of the valve body. The size of a water outlet channel is changed by changing the depth of threads of the regulating rod entering the regulating rod inserting hole, and therefore the water flow strength is changed.

The present invention is an automatically controlled pneumatically fastened water supply system for passenger train. Structurally, the automatically controlled pneumatically fastened water supply system includes pneumatically fastened fast pipe union connected between the water injecting nozzle in the train and the water pipe; one T-pipe with the first end connected to the water pipe, the second end connected via water pipe and the first solenoid valve to the water source, and the third end connected via air pipe and the second solenoid valve to a micro air pump; the air pipe connected to the air passage of the pneumatically fastened fast pipe union, and a control device comprising one microcomputerized control unit and one radio emitter. The present invention has short water supply time, water saving, high work efficiency and other advantages.