11results about How to "Promote redistribution" patented technology

The invention relates to the field of food technology, and discloses a phosphorus-free frozen water-retaining agent for tilapia fillets, and a preparation method and application thereof. A phosphorus-free frozen water-retaining agent for tilapia fillets is composed of the following substances in mass fractions: 0.3-0.7% sorbitol, 0.1-0.5% sodium citrate, 0.5%-1.3% soy protein isolate, and the rest is distilled water. The preparation method of the phosphorus-free frozen water-retaining agent is to take sorbitol, sodium citrate, and soy protein isolate in a container respectively, add distilled water, stir and dissolve to obtain. The phosphorus-free frozen storage method of tilapia fillets is to take the tilapia fillets and soak them in the water-retaining agent solution for 0.5-1.5 hours, take them out and vacuum pack them, and then quickly put them into a -20°C environment for frozen storage. The phosphorus-free frozen water-retaining agent of the present invention can not only inhibit the denaturation of protein and fat of tilapia during frozen storage, maintain the stability of fish fillet protein, but also improve the texture characteristics of the fish fillets, and improve the antifreeze and water retention.

The invention provides an impact jet flow double-layer micro-channel heat sink structure with fins and a working method thereof, and belongs to the technical field of micro-channel enhanced heat dissipation, the impact jet flow double-layer micro-channel heat sink structure comprises an upper-layer micro-channel, a lower-layer micro-channel and a plurality of partition plates, the upper-layer micro-channel and the lower-layer micro-channel are connected through a middle layer, and the partition plates vertically penetrate through the upper-layer micro-channel and the lower-layer micro-channel; the upper-layer micro-channel comprises a heat sink top, a first inlet area is arranged on the heat sink top, a flow dividing area is arranged on the lower portion of the first inlet area, flow guiding areas are arranged on the two sides of the flow dividing area, a second inlet area and a third inlet area are arranged at ports of the two sides of the upper-layer micro-channel respectively, and fins are installed below the heat sink top. A confluence area is formed between the fins and the middle layer, the lower-layer micro-channel comprises a heat sink substrate, and outlet areas are arranged at ports of the two sides of the lower-layer micro-channel respectively; the heat exchanger has the characteristics of high efficiency, relatively uniform convective heat exchange performance, low energy dissipation and high overall heat exchange.

The invention relates to the technical field of crossing of material chemistry and water electrolysis oxygen evolution, in particular to a method for preparing a yolk shell structure high-entropy phosphide FeCoNiCrMn-P catalyst through a low-temperature phosphating method. The method comprises the following steps: dissolving a plurality of nitrates in isopropanol and a glycerin solvent to react to obtain high-entropy glycerate; carrying out hydrothermal reaction on the reacted high-entropy glycerate to generate a high-entropy hydroxide; the high-entropy hydroxide and a phosphorus source are subjected to a low-temperature phosphating reaction to generate the high-entropy phosphide catalyst. According to the invention, the reactant FeCoNiCrMn-P with a graded egg yolk shell structure not only exposes more active sites and provides abundant mass transfer channels, but also provides a uniform environment for heterogeneous catalysis, so that OER is promoted. In addition, the shell layer can also play a role of a protective layer, prevents the active components from deforming and dissolving in the catalytic process, and enhances the stability of the active components. When the current density is 10 mA cm <-2 >, the FeCoNiCrMn-P2 has the best OER performance, and the overpotential of the FeCoNiCrMn-P2 is 329 mV, so that the FeCoNiCrMn-P2 has high practical application value.

The invention relates to the related technical field of microbial fermentation, and discloses microbial fermentation culture equipment for enhancing the sterile culture effect, which comprises a fermentation tank, the lower end of the fermentation tank is provided with a tank bottom, the upper end of the fermentation tank is provided with a tank cover, the fermentation tank is internally provided with a stirring assembly, the tank cover is internally provided with an air inlet assembly, and one side of the tank cover is provided with an inlet. A round pipe is rotationally arranged in the fermentation tank; according to the device, the flowing path of gas on the upper side in the shell can be prolonged through the wave-shaped channel, so that the gas is in full contact with an adsorption material, and the gas impurity removal effect is improved; then the fan-shaped sliding plate moves downwards, so that the adsorption material in the wave-shaped channel falls to the lower side of the interior of the shell to be mixed; and finally, through vertical shaking of the fan-shaped sliding plate, the shaking and mixing effect of the adsorption materials is improved, the adsorption materials in the wave-shaped channel can be redistributed, the adsorption materials in the wave-shaped channel can make full contact with gas, and the service life of the adsorption materials is prolonged.

This invention belongs to the field of materials processing and preparation technology, and provides a method for accelerating the martensitic decomposition of additive titanium alloys with high-energy short-time pulsed current. By designing pulsed current parameters, this invention establishes a quantitative relationship between current density, action time and microstructure evolution, thereby effectively suppressing grain coarsening while efficiently driving the rapid decomposition of acicular martensite. Ultimately, it breaks through the traditional constraint between strength and plasticity in additively manufactured titanium alloys, and achieves significant optimization of its comprehensive mechanical properties.

The utility model discloses a shock absorption lubrication valve stem, it includes valve stem body, and the contraction portion is equipped with in valve stem body middle section, and the contraction portion is equipped with the shock absorption lubrication subassembly that is composed of the upper circular platform and lower circular platform of the upper and lower interval arrangement on the sleeve. The through hole of the interference fit with the contraction portion is set up in the center of upper and lower circular platform, and the first spiral oil storage groove filled with the lubricating grease and the second spiral oil storage groove are respectively screwed on the conical side surface. The big bottom surface of upper and lower circular platform is opposite, and the first arc convex and the second arc convex that are staggered distribution are respectively equipped on it. The utility model discloses through spiral oil storage groove realizes self -lubricating, through arc convex and circular platform combination form multiple shock absorption heat preservation air gap, and through the friction reducing convex point reduces the contact area, and the wear resistance, the impact resistance and the sealing member anti -icing effect of valve stem are comprehensively promoted, especially suitable for the low temperature working condition of limited space.

The invention discloses an NF / CoFeS-CoP-FeP composite material with a three-phase heterostructure, which is prepared by taking foamed nickel as a substrate and a self-supporting framework, taking cobalt nitrate hexahydrate and iron nitrate nonahydrate as raw materials, taking thiourea as a sulfur source, growing partially vulcanized ferrocobalt sulfide and ferrocobalt hydroxide on the foamed nickel, and then taking sodium hypophosphite as a phosphorus source to prepare the NF / CoFeS-CoP-FeP composite material with the three-phase heterostructure. The ferrocobalt hydroxide is converted into ferrocobalt phosphide; the Co8FeS8 is of a spherical magic cube-shaped structure; co2P is of a spherical nano sheet structure; the Fe2P is of a nano sheet structure; co8FeS8 and Co2P are combined with Fe2P to form a three-phase heterostructure. The preparation method of the NF / CoFeS-CoOH-FeOH composite material comprises the following steps: 1, preparing NF / CoFeS-CoOH-FeOH; and 2, preparation of the NF / CoFeS-CoP-FeP is carried out. When the NF / CoFeS-CoP-FeP composite material is applied as a hydrogen evolution catalyst material, the NF / CoFeS-CoP-FeP composite material reacts in a 1M KOH solution, and in a range of 0 to-0.1 V, when the current density is 10mA. Cm <-2 >, the overpotential of the NF / CoFeS-CoP-FeP is 61 to 67 mV, and the Tafel slope is 99.51 to 105.23 mV. Dec-1; and the current retention rate of NF / CoFeS-CoP-FeP is 98% under the condition that the cycle time is 24 h.

The present invention discloses a stop switch module, a control panel seat and a washing machine, wherein the stop switch module comprises a stop switch and a control rod module, a contact for connecting or disconnecting the stop switch is arranged on the bottom wall of the stop switch, and the control rod module comprises a trigger end for triggering the stop switch, and the trigger end is higher than the horizontal plane where the contact is located. The present invention reduces the total height of the stop switch module by arranging the trigger end higher than the horizontal plane where the contact is located, and raises the installation position of the control rod module on the washing machine control panel seat. The stop switch module can be installed in a space with a relatively small height of the washing machine control panel seat, thereby avoiding frequent dehydration pauses during the operation of the washing machine and facilitating the reallocation of the space in the washing machine control panel seat.

The invention discloses a centrifugal machine for efficiently separating chemical mixtures, and relates to the technical field of centrifugal machines, the centrifugal machine comprises a mixing centrifugal machine main body of a cylindrical cavity structure, and the upper end of the mixing centrifugal machine main body is fixedly communicated with a rotary drum which is used for containing materials and generating centrifugal force during high-speed rotation; a control panel used for monitoring and adjusting operation parameters of the mixing centrifugal machine body is fixedly connected to the outer wall of the bottom end of the mixing centrifugal machine body, a stirrer used for achieving material separation is fixedly connected to the interior of the rotary drum, and an oscillation feeding mechanism is arranged at the top end of the rotary drum. A reciprocating pressing mechanism is arranged at the lower end of the interior of the rotary drum, an adjusting and distributing mechanism is arranged at the upper end of the stirrer, and a first sieve plate and a second sieve plate are matched with each other, so that materials to be treated can be uniformly and stably introduced into the rotary drum of the mixing centrifugal machine main body through the oscillation feeding mechanism; therefore, large impact or non-uniform distribution of the materials in the entering process can be avoided.

The invention relates to the field of chemical equipment, in particular to a ferric chloride solution impurity removal pretreatment device which comprises a stirring assembly, a monitoring assembly and a control assembly, the stirring assembly is installed on the bottom wall of a kettle cover and used for stirring and mixing during impurity removal, and meanwhile the stirring assembly is further used for conveying oxygen during impurity removal; the exhaust port of the kettle body is provided with a recovery assembly for recovering gas generated in the impurity removal process of the ferric chloride solution; the monitoring assembly is used for monitoring reaction data in the kettle body in real time during impurity removal of the ferric chloride solution, and the control assembly is used for performing on-off and power control on driving parts in the heating assembly and the stirring assembly and performing on-off control on the recovery assembly and the oxygen supply assembly according to the real-time monitoring data. Oxygen supply and stirring mixing are synchronously carried out, meanwhile, harmful gas is effectively recycled and treated through the recycling assembly, and the purposes of improving the impurity removal efficiency, reducing energy consumption, reducing environmental pollution and improving the safety and convenience of production operation are achieved.

The application belongs to the technical field of electrocatalytic hydrogen production, and particularly relates to an off-grid alkaline hydrogen production electrocatalyst coupled with a crystal lattice hydrogen and a gradient layered structure, a preparation method and application thereof. The application provides a low-cost and high-performance alkaline hydrogen production electrocatalyst and a preparation method thereof. The electrocatalyst adopts tungsten carbide (WC) as a carrier, and is compounded with oxygenophilic metal (Ni or Ru) and MnO2 to form a composite electrocatalyst with a gradient layered structure. The technical advantage lies in that the MnO2 / WC interface is used to optimize the de-intercalation process of the crystal lattice hydrogen, and the bottleneck of hydrogen desorption is solved; the Ru(Ni) / WC gradient layered interface is used to promote water molecule dissociation and enhance the anti-start-stop stability. Benefiting from the above-mentioned synergistic effect, the prepared Ru(Ni)-MnO2 / WC electrocatalyst exhibits excellent catalytic activity and outstanding long-term stability in alkaline HER.