38results about How to "Realize filtration and purification" patented technology

The invention belongs to the field of petroleum drilling and production, and in particular relates to a cutting tool for a rotating particle jet pipe string, which includes a pressure cap, a support ring, a centralizing blade, a gland, a filter screen, a disc spring, a rotating outer cylinder, a friction disc, a centralizing bearing, a card Rings, thrust bearings, compression springs, central shafts, nozzle bodies, hard alloy nozzles, etc., by adding particles to the pumped working fluid, using the rotating particle jet pipe string cutting tool to achieve filtration of particles and large-diameter particles in the fluid Purify, and straighten the tool through the straightening blade, spray the rotating particle jet downhole, realize the 360° high-efficiency cutting of the downhole pipe string, and not be limited by special conditions such as small pipe diameter and deformed pipe, effectively improve the cutting efficiency of complex downhole pipe strings, reduce job cost.

The invention relates to a portable water purifier and methods for water purification, backwashing and filler replacement thereof, belonging to the field of drinking water treatment. The portable water purifier includes a water-drawing part and a filter part; the water-drawing part includes a water inlet cylinder, and the lower end of the water inlet cylinder has internal threads; the filter part includes a stuffing tube with two ends open, and a stud is installed at both ends of the stuffing tube , one of the studs is matched with the internal thread of the water inlet cylinder, and the other stud is connected to the tail cap with the water outlet. The water purifier of the present invention optimizes the structure of the packing cylinder. Under the premise of meeting the water purification requirements, the packing can be backwashed, the replacement frequency of the packing is reduced, the use time of the packing is prolonged, the utilization rate of the packing is improved, and the replacement of the packing is easier. The water purification method adopts a water purifier to purify the sewage to the standard of drinking water; the backwashing method can realize the flushing of the filler of the water purifier, prolonging the use time of the filler; the replacement method of the filler can simply and quickly replace the filler.

The invention provides a ventilation system and method, which are applied to a three-dimensional space with people or animals, including an air intake module, a one-way power exhaust module, a gas detection module and a control module. The air intake module includes an air intake box, a power The air inlet mechanism and the air guide head, the first intercepting screen is arranged in the air inlet box, the power air inlet mechanism includes the air inlet pipe and the second intercepting screen, the first fan, and the porous honeycomb are arranged in the air inlet pipe in sequence according to the air inlet direction. body filter layer, the second fan, the area of ​​the wind passing surface of the first intercepting net plate is greater than the area of ​​the wind passing surface of the second intercepting net plate, the air guide head is movably arranged at the air outlet of the air inlet pipe, and the control module is used It is used to control the start and stop of the first fan, the second fan and the one-way power exhaust module according to the air pressure and the gas concentration of the preset type. Compared with the existing technology, better filtering effect, higher ventilation efficiency, longer service life and better biological safety are achieved.

The invention discloses a pressure-transforming capacity expansion self-cleaning high-efficiency filter device for exhaust gas, which belongs to the technical field of exhaust gas treatment. The invention utilizes the atmospheric pressure formed on the outside of the filter screen when it is blocked to make a pair of filter screens rotate and approach each other, so that the fixed plate is compressed by the spring. Gradually move up under the action of the elastic force, drive the inclined cleaning plate to move up against the surface of the filter screen, scrape off the particles attached to the surface of the filter screen, as the fixed rod and the fixed plate gradually approach, when the push plate passes through the pressure relief hole When the blocking plate is pushed to rotate, the pressure release hole is opened, and the exhaust gas enters between a pair of inclined cleaning plates and is then filtered by the filter screen, so that the air pressure outside the filter screen gradually decreases. Far away from returning to the original position, the process of filtering and purifying the exhaust gas is continued. The present invention automatically realizes the cleaning process of the filter screen without interrupting the filtering process through the change of air pressure caused by the blockage, thereby realizing a continuous and efficient process of exhaust gas purification.

The invention relates to the technical field of sewage treatment, in particular to a purification treatment device for sewage containing sediment, comprising a water storage tank, a purifier and a collection tank. A left settling chamber and a right settling chamber connected at the bottom are arranged in the coarse filtration zone, a plurality of adsorption branches are evenly arranged on the side walls of the left settling chamber, and a second filter screen is arranged in the right settling chamber; the fine filtration zone An equipment room and a fine filter room are arranged side by side. The fine filter room is provided with a filler filter area, a support net and a retention area from top to bottom. The retention area is provided with a filter element, and the equipment room is provided with a first filter. a water pump, the first water pump is in communication with the collection tank pipeline. The purification treatment device for sediment-containing sewage can effectively remove the sediment impurities and heavy metals in the sewage, realize the filtering and purification process of the sediment-containing sewage, and has great significance for promoting the regeneration and utilization of water resources.

The invention relates to a river purification device for ecological energy saving and environmental protection, which effectively solves the problems in the prior art that the filter screen has poor bearing capacity and is not easy to clean, large-scale purification equipment occupies a large area and has high cost, and cannot adapt to the purification under high-velocity water flow. The problem of working conditions; the technical solution is to include a U-shaped main body, both sides of the main body are fixedly connected with ring-shaped front slide rails, and both sides of the main body are also fixedly connected with middle vertical rails and rear vertical rails. There are two front filter screens slidingly connected in the rail, and the two front filter screens are connected through the transmission structure set on the front slide rail, so that only one of the two front slide rails is in the main body at the same time, and the sliding connection in the middle vertical rail has The middle filter screen is slidingly connected with the rear filter screen in the rear vertical rail; the structure of the invention is simple, which can effectively realize the filtration and purification of small water flow and solid waste, and at the same time ensure good filtration effect and high stability when the water flow rate increases , the garbage is easy to clean up, the production and use costs are low, and the utility is strong.

The invention provides a water purifier which comprises a main body, a water channel and a liquid homogenizing component, wherein the liquid homogenizing component is arranged in the main body and comprises at least one adjusting part; a plurality of through holes are arranged on the adjusting part; and a current-limiting water-saving device can be installed on at least part through holes of the plurality of through holes. The water purifier realizes integration design, saves use space, has higher precision of flow adjustment, and enhances the water purifying effect.