6results about How to "Big cost advantage" patented technology

This invention relates to an industrial preparation method for 2-methylphenylacetic acid, comprising the following steps: under an inert solvent, 2-methylhalobenzene and malonate diester undergo a coupling reaction in the presence of a catalyst and base A to obtain compound one; compound one is hydrolyzed and decarboxylated under the presence of base B to prepare 2-methylphenylacetic acid; the chemical structural formula of compound one is: [formula missing], where R is a C1-C8 alkyl group. Compared with existing technologies, this invention uses inexpensive raw materials, is simple to operate, can react under normal pressure, has relatively mild conditions, is safe and environmentally friendly, and is easy to industrialize.

The present application belongs to the field of oil and gas field ground engineering, and discloses a new energy consumption method based on an electrically heated molten salt energy storage steam injection system. The method comprises obtaining real-time power data and predicted power data of photovoltaic and wind power generation, accessing the data to a molten salt electric heater control system, judging whether grid valley time electricity needs to be supplemented and performing corresponding processing, judging whether the existing power of the grid can achieve new energy consumption and performing corresponding processing, and can realize exploitation after new energy consumption. Compared with conventional technology, the present application has a great cost advantage. When the wind and light new energy generation capacity is strong, the green electricity generated by wind and light can be fully utilized to heat the molten salt without consuming grid electricity. At the same time, the carbon emission intensity of the heavy oil thermal recovery process can be effectively reduced, and the green transformation of heavy oil production is facilitated.

The utility model belongs to the technical field of water treatment relates to a kind of domestic ceramic membrane purifier, including filter element, filter drum and two end caps, and the end cap of two ends is respectively provided with water inlet and water outlet and is connected with the porous channel in filter element, water outlet connected with the water purification channel outside filter element is provided on the filter drum, the both ends of the filter drum are fixed with connecting ring, the inner wall end portion of the connecting ring away from filter drum is provided with first taper surface, the inner wall end portion of the end cap close to filter drum is provided with second taper surface, the first taper surface, second taper surface and filter element outer wall form sealed cavity, O-ring is provided in the sealed cavity, the contact surface of O-ring and first taper surface, second taper surface and filter element outer wall all form sealing structure.The domestic ceramic membrane purifier provided by the utility model has the advantages of simple structure, small pollution, high flux, long service life and low use cost.

The water inlet device comprises a water inlet connector and an outer pipe, the first end of the outer pipe is connected with the water inlet connector, an inner pipe is arranged in the outer pipe in a sleeved mode, a gap between the inner wall of the outer pipe and the outer wall of the inner pipe forms an outer flow channel, and an outer cavity water outlet is formed in the side wall of the outer pipe. An inner flow channel communicated with the water inlet connector is formed in an inner cavity of the inner pipe, a water inlet port is formed in the end, close to the water inlet connector, of the inner pipe, an inner cavity water outlet is formed in the end, away from the water inlet connector, of the inner pipe, the water inlet port and the inner cavity water outlet are communicated through the inner flow channel, and the inner cavity water outlet is communicated with the inner flow channel and the outer flow channel. The flow slowing structure in the flow channel of the integrally arranged water inlet structure is provided with a plurality of micro steps, unnecessary parts such as a water retaining structure of the whole machine can be reduced, and meanwhile the hot water amount of the electric water heater can be greatly increased.

This invention belongs to the field of steelmaking furnace maintenance technology, specifically relating to a rapid hot-state furnace repair method for converters using thick plate trimmings as the repair material. Under the specific high-temperature, multi-slag hot environment after converter tapping, this invention utilizes thick plate trimmings with specific specifications and optional pretreatment as the structural framework. Residual high-temperature liquid slag serves as a natural high-temperature binder and heat transfer medium. Through precisely controlled feeding and furnace shaking, the two are driven to fully mix, impregnate, and spread. Finally, through a static thermal process, the mixture is sintered and solidified at the target furnace lining location, forming a composite ceramic-metal protective layer with interlocked microstructures, where the metal trimmings are the reinforcing phase and the condensed slag is the continuous binder phase. Furthermore, the resulting composite sintered layer exhibits superior erosion resistance and spalling resistance compared to traditional refractory material layers, resulting in more durable and safer furnace protection.

The utility model provides a kind of top-mounted electric mixer with Morse connection chuck, it is related to electric mixer technical field, including shell, drive shaft, chuck, stirring paddle, the drive shaft includes shaft body, the shaft body is equipped with the through-hole of shaft that can be passed by stirring paddle, the shaft body is rotationally arranged in shell by bearing, the lower part of the shaft body is provided with outer Morse taper, the chuck is used to fix stirring paddle, the inner sleeve of the chuck is equipped with the inner Morse taper that is compatible with outer Morse taper.The top-mounted electric mixer with Morse connection chuck, chuck is connected between drive shaft by Morse taper, and the two are pressed together by Morse taper, compared with the mode of traditional screw fixation, chuck and drive shaft are connected closely, without gap, and coaxiality is good.No special custom-made parts are needed, the price is low, the cost advantage is big, and the product application range is wide.