638 results about "Liquid phase" patented technology

The invention discloses a hydroxyl-rich ruthenium / titanium dioxide catalyst as well as a preparation method and application thereof, and the preparation method comprises the following steps: step 1, loading a ruthenium precursor on a titanium dioxide carrier by adopting an impregnation method or a deposition-precipitation method, and drying and calcining to obtain a Ru / TiO2 catalyst; and step 2, placing the Ru / TiO2 catalyst in an atmosphere environment containing water vapor or forming a physical adsorption water film on the surface of the Ru / TiO2 catalyst, and performing ultraviolet irradiation treatment to obtain the Ru / TiO2 catalyst. According to the method, water is physically adsorbed through ultraviolet light dissociation, hydroxyl is directly generated on the surface of Ru / TiO2 in an in-situ mode, the method is easy to operate, complex liquid phase treatment is not needed, and the stability of the generated hydroxyl under the subsequent high-temperature gas-solid phase hydrogen-rich reaction condition is obviously superior to that of hydroxyl introduced through a traditional method. The stable hydroxyl enriched on the surface serves as an effective Lewis base site and cooperates with a Ru active site, adsorption and activation of CO2 molecules are remarkably promoted, and therefore the catalytic activity of the CO2 methanation reaction is greatly improved.

The invention relates to the technical field of reactors, and discloses a uniform gas-liquid distribution suspended bed reactor for heavy oil hydrogenation, which comprises a reactor shell, a gas-liquid distribution disc is horizontally arranged at the lower end of an inner cavity of the reactor shell, a Venturi annular gas-liquid diffuser is arranged on the gas-liquid distribution disc, and a pre-distribution chamber is formed at the bottom of the gas-liquid distribution disc; the Venturi annular gas-liquid diffuser comprises an outer gas guide pipe arranged on the gas-liquid distribution disc in a penetrating mode. According to the Venturi annular gas-liquid diffuser, through the synergistic effect of a liquid-phase flow annular nozzle and a gas-phase flow annular nozzle, a liquid phase sprayed out at a high speed is actively sheared and broken relative to a low-speed gas phase, and uniform small bubble groups can be generated, so that the gas-liquid contact area is greatly increased; the dissolution rate and the mass transfer efficiency of the hydrogen into the heavy oil are remarkably improved, so that the hydrogenation reaction depth and the product quality are directly improved, and meanwhile, the catalyst in a catalyst suspended bed reaction zone is effectively protected.

The invention discloses a direct coal liquefaction pump thermal wear prediction method considering a high temperature effect, and belongs to the technical field of fluid machinery and reliability engineering.The method comprises the steps that the high temperature effect is considered, a liquid phase control equation and a solid particle dynamic model are subjected to coupling iteration, and a solid-liquid two-phase flow numerical model is obtained; the method comprises the following steps: performing full flow field modeling on a fluid domain formed by flow passage components of a pump for direct coal liquefaction, and performing grid division on the fluid domain; constructing a heat-flow-solid multi-field coupling calculation system, and solving the solid-liquid two-phase flow numerical model by adopting a large eddy simulation method based on temperature correction and a discrete element method coupling method to obtain information of flow fields and particle fields at all positions in the pump; operation condition parameters are obtained, the thermal wear rate is obtained through a thermal wear rate calculation formula on the basis of flow field and particle field information of all positions in the pump, and the predicted wear amount of the flow passage component is obtained; and the prediction precision and applicability of the wear model are improved.

The invention relates to a layered oxide material with high cycle stability and a preparation method and application thereof, the chemical formula of the layered oxide material is LiaNabNixMn (1-x) O2, 0 lt; xlt; 0.90 < = a < = 1, 0 < = b < = 0.1; the preparation method comprises the following steps: preparing a layered oxide precursor NaNi < x > Mn < 1-x > O < 2 >; mixing the precursor with a first lithium source, and then carrying out lattice site Li < + > / Na < + > replacement by at least one of molten salt ion exchange, solid phase ion exchange and liquid phase ion exchange to obtain an intermediate; cleaning the intermediate, performing solid-liquid separation, and drying to obtain a layered oxide material with high cycle stability; the layered oxide material is prepared through lattice site selective Li < + > / Na < + > replacement reaction, so that the obtained material has excellent cycling stability and specific capacity, and the method is simple in process, low in cost and suitable for large-scale production.

The invention discloses composite silver powder with a surface nano-coating structure and a preparation method of the composite silver powder. The composite silver powder comprises a micron-sized spherical silver powder core and a nano-silver shell layer coating the surface of the core, and the nano-silver shell layer comprises nano-silver particles making contact with one another; the D50 particle size of the core body is 1-2 microns, and the particle size D50 of the nano-silver particles is 10-100 nm; the composite spherical silver powder with micron-sized silver coated with nano-silver is prepared through a liquid phase chemical reduction method, the D50 particle size of the composite spherical silver powder is 1.67-1.70 microns, the tap density can reach 5.94 g / cm < 3 >, the specific surface area can reach 0.47 m < 2 > / g, and compared with micron-sized spherical silver powder of a single structure, the conductive performance of the silver powder can be improved by 32%, and the sintering activity is higher.

The invention belongs to the technical field of sealing materials, and particularly relates to a rubber composite sealing material and a liquid phase preparation method and application thereof. According to the liquid-phase preparation method of the rubber composite sealing material, provided by the invention, based on deep understanding of a liquid-phase synthesis process of first liquid-phase pre-dispersion and then condensation, a modified carbon black dispersion liquid, a modification auxiliary agent and a modified synthetic rubber latex dispersion liquid are prepared, so that carbon black and the auxiliary agent can be promoted to be uniformly and stably dispersed in a synthetic rubber system; the dispersion uniformity of the carbon black and the auxiliary agent is improved, so that the vulcanized rubber composite sealing material is not easy to have insufficient or excessive local crosslinking or structural defects, thereby improving the mechanical property, air tightness and cold resistance of the rubber composite sealing material, and being a high-performance rubber composite material; the technical problem that a high-performance rubber material is difficult to prepare by an existing preparation method is solved.

The invention relates to a heterogeneous catalysis technology, and aims to provide a method for improving the yield of components of aviation kerosene prepared by ethylene oligomerization through combination of a fixed bed and a slurry bed. Comprising a fixed bed reactor and a slurry bed reactor which are sequentially connected in series, the fixed bed reactor is filled with a metal modified mesoporous zeolite molecular sieve catalyst, and the slurry bed reactor is filled with a mesoporous zeolite molecular sieve catalyst. The method comprises the following steps: firstly, carrying out ethylene oligomerization reaction in a fixed bed reactor to generate a product containing C4-C8 olefin; the reaction product is directly introduced into the fixed bed reactors connected in series for secondary reaction, and the final product comprises C5-C16 + liquid phase olefin as an aviation fuel component. By adopting a fixed bed-slurry bed reactor combined method, the ethylene conversion rate can be greatly improved; secondary oligomerization is carried out by using an acidic mesoporous zeolite molecular sieve catalyst, so that the selectivity of aviation kerosene components is improved; the mesoporous catalyst prepared by an alkali treatment method has a good diffusion effect and keeps high activity for a long time.

The invention discloses a method and a device for measuring a dynamic contact angle of liquid on a solid surface. The method comprises the following steps: constructing a to-be-measured system containing a first liquid phase, a fluid phase and a solid phase; immersing the to-be-detected surface of the solid phase in the environment phase upwards or downwards; an end surface object is arranged opposite to the to-be-detected surface, and the two are immersed in the same environment phase; the relative distance and position of the two are adjusted, and a longitudinal fluid bridge is formed through the liquid adding device; the camera device obtains a fluid bridge interface contour image from the side surface; horizontally moving the surface of the end surface object or the solid phase, and applying transverse lateral dragging acting force to the fluid bridge to promote the fluid bridge to deform and contact the peripheral line to move or be about to move; and recording the time sequence change of the image, analyzing and calculating to obtain the time change relationship between the contact angle value and the three-phase contact point position value, and further determining the static, forward and backward contact angles and the contact angle hysteresis value. The method is simple and accurate, has wide applicability, and can cover reliable dynamic contact angle data measurement from hydrophilic to super-hydrophobic surfaces.

According to the BDIM-based propeller cavitation streaming simulation algorithm provided by the invention, the particularity of a propeller structure is considered, a hyperbolic tangent encryption function is introduced into a near-wall region of the propeller structure to carry out non-uniform grid division, and high-gradient flow and boundary layer development of a blade tip region can be effectively captured, so that the resolution of a cavitation source region and a vortex core is improved; in multi-phase interface tracking, a VOF method is adopted to carry out high-resolution reconstruction on fluctuation behaviors of a vapor-liquid interface, interface diffusion distortion can be avoided, interface definition and mass conservation can be taken into consideration in combination with double-field evolution of a volume fraction function and an intermediate velocity field, and the method is suitable for being applied to multi-phase interface tracking. The method is particularly suitable for dynamic capture of a cavitation primary area and a complex gas-liquid phase mixing area in a propeller wake, and the precision and reliability of simulation on the cavitation occurrence position, the time scale and the form can be improved.

The invention belongs to the technical field of chemical engineering, and relates to a method and a device for utilizing latent heat of a tower top gas phase in cyclohexanol preparation. Comprising a first separation tower, a second separation tower and the like, a tower top gas phase outlet of the second separation tower is connected with a hot side inlet of a second tower condenser, and a cold side outlet of the second tower condenser is connected with the first separation tower; a tower top gas phase outlet of the cyclohexene recovery tower is connected with the first separation tower; a tower top gas phase outlet of the cyclohexanol refining tower is connected with a hot side inlet of a refining tower condenser, and a cold side outlet of the refining tower condenser is connected with the second separation tower through a pipeline; an outlet of the hydration reaction system is connected with the first separation tower, and a tower kettle liquid phase outlet of the first separation tower is connected with an inlet of the second separation tower through a pipeline; a side line outlet of the first separation tower is connected with the hydration reaction system. The tower top gas phase latent heat of the second separation tower, the cyclohexene recovery tower and the cyclohexanol refining tower is recycled, so that the energy consumption in the cyclohexanol production process is reduced.

The invention discloses an intelligent prediction method and system for the alkali metal slagging tendency of a biomass gas coupled coal-fired boiler, and relates to the field of slagging tendency prediction.The intelligent prediction method comprises the steps that flue gas temperature data of a target area of a convection heating surface of the boiler is obtained, and the ash content melting characteristic temperature and alkali metal element content data of mixed fuel entering the boiler are obtained; performing physically constrained ash temperature-liquid phase yield adaptive correlation calculation, calculating coupling adhesion force, generating equivalent adhesion strength distribution of particle surfaces, counting particle turbulence collision physical parameters based on the equivalent adhesion strength distribution of the particle surfaces, and judging effective collision adhesion efficiency based on energy competition. The method comprises the following steps: calculating the agglomeration growth rate of ash particles in a flow field, outputting the spatial growth configuration of ash particle aggregates, carrying out macroscopic mechanical characteristic analysis and bridging stability judgment on an accumulation body at the throat part of the dry bottom hopper according to the spatial growth configuration of the ash particle aggregates, and outputting the blockage risk level of the dry bottom hopper, thereby effectively solving the blockage problem of the dry bottom hopper.

The utility model provides an integrated uniform-temperature liquid cooling head and heat dissipation equipment. The integrated uniform-temperature liquid cooling head comprises a water inlet nozzle, a water outlet nozzle, an upper cover and a uniform-temperature heat dissipation assembly, the water inlet nozzle and the water outlet nozzle are arranged on the upper cover at intervals, the uniform-temperature heat dissipation assembly comprises a heat dissipation cover plate and a heat dissipation bottom plate, one side of the heat dissipation cover plate is connected with the upper cover, the heat dissipation cover plate is provided with heat dissipation shovel teeth, and the heat dissipation cover plate and the upper cover jointly form a liquid flowing cavity. The heat dissipation shovel teeth are located in the liquid flowing cavity. The other side of the heat dissipation cover plate is connected with the heat dissipation bottom plate, the heat dissipation bottom plate and the heat dissipation cover plate jointly form a phase change cavity, a phase change working medium is arranged in the phase change cavity, a capillary layer is arranged on the inner wall of the phase change cavity, the heat dissipation bottom plate is used for abutting against a heat source, and the phase change working medium is used for transferring heat to the heat dissipation shovel teeth during phase change conversion. After the cooling liquid circulates through the water inlet nozzle, the liquid flowing cavity and the water outlet nozzle, the cooling liquid cools the heat dissipation shovel teeth, and the capillary layer is used for enabling the liquid phase change working medium to flow back to the heat dissipation bottom plate.

The invention discloses a method and a device for in-situ excitation of plasma in a high-temperature and high-pressure medium, at least one electrode is provided, the surface of the electrode is provided with a micro-nano structure with a tip enhancement effect, and the micro-nano structure is used for improving a local field enhancement factor on the surface of the electrode; placing the electrode in a reaction container filled with an aqueous solution; voltage is applied to the electrode through the power supply, the micro-nano structure generates a local high electric field at the tip of the micro-nano structure under the voltage, electron tunneling emission is caused, liquid phase discharge is triggered, and discharge plasma is generated. Through the electrode with the micro-nano structure on the surface, a local field enhancement factor is improved, so that the electrode can trigger liquid phase discharge under a relatively low potential. Resonance driving or three-phase alternating current input is adopted, and the self-adaptive tuning technology that the dielectric constant of an aqueous solution changes along with temperature and pressure is combined, so that efficient excitation of plasmas in a container is achieved. The method does not need an external heating device, is low in energy consumption and quick in response, and is particularly suitable for efficient heat management in a space limited or linear pipeline heat transfer scene.

The invention discloses an oil and gas shaft multiphase flow simulator MphaseSim modeling method and a PINN solving method, and relates to the technical field of oil and gas field exploitation, and the method comprises the following steps: pre-calibrating a modeling strategy, including calibrating gas-liquid two-phase flow, and calculating the average flow velocity according to the section occupied by the gas-liquid two-phase flow; mass transfer can occur between the calibrated gas and liquid phases, but the gas and liquid phases are always in a thermodynamic equilibrium state; in calibration steady-state analysis, the mass flow of any section of the shaft is equal, and the liquid holdup is calculated through a drift-assisted equation. According to the method, on the basis of a mass-momentum-energy coupling mathematical model, the SRK state equation and the drift flow model are combined, the phase change characteristics, momentum transfer and energy conversion rules of the gas phase and the liquid phase can be accurately represented, the model sealing performance is good, and the physical significance is clear; and the device can be stably applied to different types of oil and gas well scenes such as gas wells, deep oil wells and electric submersible pump wells, has no obvious numerical value divergence problem in long shaft flow simulation, and can effectively reflect the real production state of the shaft.

The invention discloses a high-dispersion cobalt-based catalyst and a preparation method and application thereof, and belongs to the technical field of cobalt-based catalysts.The preparation method comprises the steps that tetracarboxyl cobalt phthalocyanine and nitrogen-defect carbon nanotubes serve as raw materials, a pre-assembled compound is formed in an organic solvent through molecular self-assembly, then programmed microwave heating is conducted on the pre-assembled compound, and the high-dispersion cobalt-based catalyst is obtained. According to the high-dispersion cobalt-based catalyst and the preparation method thereof disclosed by the invention, a means of combining a specific molecular precursor and carrier defect engineering is utilized, a'molecular anchor-anchor positioning 'pre-connection system is constructed through liquid-phase pre-assembly, and a programmed microwave energy accurate input principle is supplemented, so that the high-dispersion cobalt-based catalyst is obtained. The key technical problems that when the cobalt-based catalyst is prepared through an existing microwave method, metal atoms are prone to agglomeration, the active site structure is uncontrollable, and the catalytic performance is ordinary are successfully solved.

The invention provides a method and a system for evaluating heavy metal pollution of sediment in a sedimentary environment. The method comprises the following steps: obtaining heavy metal content data of a solid phase and a liquid phase of sediment through multiple layers of sediment samples in a target water body sedimentary area; constructing a migration distribution curve of heavy metals in the bottom mud in different depth layers according to the content data of the heavy metals, extracting enrichment characteristics of the bottom mud heavy metals in vertical distribution according to the migration distribution curve, and generating spatial diffusion distribution of bottom mud heavy metal pollution according to the enrichment characteristics; determining the migration activity coefficient of the heavy metal in the bottom mud in a natural state according to the environmental parameters of the bottom mud, the change trend of the heavy metal concentration gradient in spatial diffusion distribution and the heavy metal form; and evaluating the re-release risk level of heavy metal pollution in the target water body sedimentary area according to the migration activity coefficient. By adopting the scheme, heavy metal pollution assessment can be promoted from static total amount analysis to dynamic behavior risk prediction, so that dynamic quantification of bottom mud heavy metal migration activity and accurate early warning of re-release risk are realized.

The invention relates to the technical field of alumina material preparation, in particular to macroporous pseudo-boehmite and a combined preparation method thereof. The preparation method comprises the following steps: carrying out neutralization reaction on carbon dioxide and a sodium aluminate solution to obtain neutralized slurry; performing first aging treatment on the neutralized slurry to obtain first aged slurry; filtering the first aged slurry to obtain a solid-phase material and a liquid-phase material; sequentially washing and drying the solid-phase material to obtain a first macroporous pseudo-boehmite product; aluminum sulfate and the sodium aluminate solution are subjected to parallel flow neutralization, and aluminum hydroxide slurry is obtained; mixing the aluminum hydroxide slurry with the liquid-phase material, and then carrying out second aging treatment to obtain second aged slurry; performing post-treatment on the second aged slurry to obtain a second macroporous pseudo-boehmite product; and collecting the two macroporous pseudo-boehmite products in batches. According to the preparation method, pseudo-boehmite with different pore structure characteristics is respectively prepared through two neutralization technologies based on three mechanisms of staged treatment, material recycling and structure complementation.

The invention relates to the technical field of thin-wall metal part plastic forming, in particular to a thin-wall metal bulging forming method based on liquid phase change expansion, which comprises three continuous steps of pretreatment, freezing bulging and post-treatment, and specifically comprises the following steps: pretreatment: selecting a thin-wall metal pipe, and carrying out surface friction optimization treatment on the inner wall of the thin-wall metal pipe; an elastic buffer layer is arranged between the inner wall of the thin-wall metal pipe and the phase change medium; a phase change medium is injected into the thin-wall metal pipe, the filling rate of the phase change medium is 100%, freezing bulging is conducted, specifically, the pretreated thin-wall metal pipe serves as a forming part, and the thin-wall metal pipe is loaded into a precision forming tool and sealed; and post-treatment is conducted, specifically, stress relief treatment is conducted on the bulged thin-wall metal pipe, and the stress relief treatment is a 300-DEG C vacuum annealing process. According to the method, the defects of an existing bulging technology are remarkably overcome, and breakthrough is achieved in the aspects of technical performance, cost efficiency, environmental protection, safety and application expansion.

The invention belongs to the field of soil environment pollution simulation and prediction, and provides a prediction method based on a two-point chemical unbalanced model, which is used for quantitatively evaluating the effect of regulating and controlling the migration behavior of p-nitrophenol in acid red soil by straw stalk biochar. According to the method, a biochar-red soil composite medium system is constructed, a soil column leaching experiment is carried out to obtain penetration curve data, a two-point chemical unbalance model in CXTFIT software is utilized to carry out parameter inversion, and key parameters such as a retardation factor, a two-region distribution coefficient, a mass transfer coefficient and a liquid phase degradation coefficient are accurately identified. Model verification shows that the goodness of fit is high, and a parameter change rule reveals the inherent mechanism of enhancing the pollutant retention capacity, changing the proportion of fast and slow adsorption sites and influencing mass transfer kinetics by the biochar. Based on the verified model, the long-term migration behavior and pollution risk of p-nitrophenol under different environmental conditions can be simulated, and a scientific basis is provided for groundwater pollution control and remediation strategy optimization.

The invention provides a high-filling particle viscous fluid mixed heat generation and transfer multi-scale simulation method and system, and belongs to the technical field of multiphase flow numerical simulation and heat transfer and friction heat generation coupling calculation. A uniform flow-heat generation-heat transfer coupling solution is constructed under a double-fluid model and a KTGF framework; a drag force model more suitable for a dense particle system is introduced in an interphase momentum exchange link; a BVK drag force model is adopted, and dynamic calculation of an interphase exchange coefficient is realized in a solver through a user-defined function; therefore, the prediction consistency of the solid-phase volume fraction distribution and the relative slip velocity under the high filling condition is improved; particle phase dissipation heat generation, solid-liquid interface friction heat generation and particle-wall surface friction heat generation are introduced as controllable heat source items, and are coupled to a liquid phase and particle phase energy equation according to a set heat distribution coefficient, so that the problem that friction related heat sources are difficult to accurately characterize when only software built-in options are relied on is solved.

The invention discloses a variable-pore phase-change sweating cooling bionic structure based on fractal characteristics. The variable-pore phase-change sweating cooling bionic structure comprises a variable-pore porous sweating layer and a regulation and control unit, wherein the variable-pore porous sweating layer is composed of fractal flow equalizing plates which are sequentially arranged in a stacked mode in the heat flow direction; the fractal flow equalizing plate is of an N-stage bifurcated tree-shaped structure and is used for equally dividing one path of cooling working medium into 2N paths of cooling working medium, and N is an integer ranging from 4 to 6; the variable-pore porous sweating layer is divided into an upper-layer high-heat-flow area and a lower-layer low-heat-flow area in the thickness direction, the upper-layer high-heat-flow area is used for promoting phase change and efficient heat exchange of a cooling working medium, and the lower-layer low-heat-flow area is used for promoting liquid-phase permeation of the cooling working medium; and the regulation and control unit predicts the phase change leading edge position S (t) in real time based on a neural network, and dynamically regulates the cooling working medium flow Q (t) input into the inlet of the fractal flow equalizing plate according to the S (t). The invention further discloses a design method of the structure. By introducing the bionic variable porosity characteristic, coupling of flowing heat exchange is achieved, the cooling efficiency of thermal protection is improved, and consumption of a heat exchange working medium is reduced.

The invention belongs to the technical field of chemical metallurgy, and particularly relates to a device for stably growing silicon carbide single crystals by a liquid phase method and a working method.The device for stably growing the silicon carbide single crystals by the liquid phase method comprises an inner crucible, an outer crucible, a plurality of liquid discharging holes, a plurality of liquid discharging holes, a plurality of liquid discharging holes and a plurality of liquid discharging holes, the outer crucible is arranged on the periphery of the inner crucible in a sleeving mode, and an annular guide block used for stretching into the annular cavity and blocking the liquid drainage hole sets is arranged at the cavity bottom of the outer crucible; the driving shaft is connected with the outer crucible; the heater is positioned on the periphery of the outer crucible; the control module is electrically connected with the driving shaft; according to the device for stably growing the silicon carbide single crystals through the liquid phase method and the working method, the driving shaft rotates forwards to drive the outer crucible to descend, so that the annular guide block opens the liquid discharge hole group, and at the moment, the liquid level of a solution in the inner crucible is lowered to be away from a floating crystal.

The invention discloses a system for producing short-chain volatile fatty acid through kitchen co-fermentation of sludge, and relates to the technical field of biochemical engineering and environmental engineering. Comprising a time phase construction module, a causal playback identification module, a flow field mapping correction module, a metabolism gating feedback module, a structure reconstruction steady-state module and a phase traction control module, and reconstructing a gas-liquid phase difference reference surface according to the real-time flow field response, and establishing a reference surface to calibrate an anti-phase trigger window. According to the method, gas-liquid reverse-phase accurate identification is realized through a high-precision time base line and flow field tracking, a causal chain is constructed to early warn an inverted nucleation area in advance, a steady-state energy base plane is established in combination with three-dimensional flow field correction and metabolism monitoring feedback and driving structure cooperative adjustment, and finally disturbance suppression and path self-resetting are realized through phase traction regulation. The acid production efficiency and the system stability are improved.

Provided is a temperature-responsive fluorescent particle comprising at least one type of fluorescent molecule in a molecular assembly comprising and constituted by at least one type of amphiphilic molecule, wherein the fluorescent molecule emits fluorescence when the molecular assembly is in the liquid phase and it is quenched when the molecular assembly is in the solid phase, due to a temperature-responsive solid-liquid phase transition, so that fluorescence emission and quenching of the fluorescent molecule are reversibly switched in a temperature responsive manner. Also provided is a temperature-responsive fluorescent probe comprising the temperature-responsive fluorescent particle the surface of which is modified with a biomolecule recognition element, and methods for detecting and quantitatively determining a biomolecule with the temperature-responsive fluorescent probe.

The invention relates to the technical field of personal temperature control supplies, and discloses an intelligent heat regulation and control system and method for outdoor mobile equipment, and the system comprises a data collection module, an intelligent decision module and a collaborative execution module. The core of the method lies in two switchable control modes: when it is judged that the temperature is not uniform, the system enters an active circulation and balance mode, a control signal synchronous with the breathing frequency of a user is generated through a biological rhythm coupled self-adaptive peristaltic wave control algorithm, an exciter is driven to directionally transport a liquid phase change material in a wavy pulse mode, and the liquid phase change material is continuously conveyed. Heat redistribution is realized; and when the temperature is judged to be balanced, switching to a partition curing and heat locking mode, stopping transportation and inducing part of the phase change material to be cured at a specific position to form a heat insulation barrier with high heat resistance so as to lock core heat with low energy consumption. According to the invention, through active redistribution and partition solidification locking of heat, the personalized comfortable experience and the system cruising ability are significantly improved.

The utility model belongs to the technical field of reactors, and particularly relates to a multiphase unpowered reactor, which comprises a vertical shell, an upper reaction area and a lower liquid collection area are arranged in the shell, and the reaction area is communicated with the liquid collection area through a cap hood, and is characterized in that an annular pipe is arranged in the middle of the reaction area and is connected with a feed port of the shell through a feed pipe; a plurality of horizontal circulating hydraulic sprayers are arranged on the annular pipe, and the axis of at least one horizontal circulating hydraulic sprayer is tangential to the outer side of the annular pipe; a cross pipe is arranged at the lower part of the reaction area; a plurality of vertical circulating hydraulic sprayers are arranged on the cross pipe; and the horizontal circulating hydraulic spray head and the vertical circulating hydraulic spray head are venturi mixed flow spray heads. The utility model has the beneficial effects that the middle section and the lower section of the reaction area of the shell adopt two sections of liquid-phase hydraulic sprayers to be combined with the atomizing sprayers at the top of the reaction area to respectively form liquid flow in the vertical direction and the horizontal direction, so that the mixing effect of gas-phase, liquid-phase and solid-phase substances is enhanced, and the conversion efficiency is improved.

The invention discloses a spacecraft active thermal protection control method and device, equipment, a medium and a product, and relates to the technical field of spacecraft thermal management, and the method comprises the steps: obtaining real-time thermal environment data outside a spacecraft; based on the real-time thermal environment data, predicting a heat flow change trend of the exterior of the spacecraft in a preset time period; according to the heat flow change trend, a regulation and control instruction for a heat dissipation execution assembly arranged outside the spacecraft is generated; wherein the heat dissipation execution assembly comprises a porous zeolite matrix in which a liquid phase change working medium is stored, and the regulation and control instruction is used for controlling the transportation process of the liquid phase change working medium in the porous zeolite matrix and the vaporization process of the liquid phase change working medium on the surface layer of the porous zeolite matrix. The method can realize active control of thermal protection.

The invention relates to the technical field of electrochemistry, and discloses a liquid-phase electro-catalysis in-situ cell for X-ray absorption spectrum testing, the liquid-phase electro-catalysis in-situ cell is characterized in that a copper working electrode wire, a fixed window and an insertion window are arranged on an electrolytic cell cavity, a cell body top cover is fixedly arranged on the electrolytic cell cavity, the fixed window is located at one side of the electrolytic cell cavity, and the insertion window is located at the other side of the electrolytic cell cavity. The insertion window is positioned on the other side of the electrolytic tank cavity; the liquid layer thickness adjusting assembly is fixedly mounted in the insertion window; the working electrode fixing assembly is fixedly installed in the fixing window. The cavity of the electrolytic tank is of an integrated structure, the light-transmitting tube adopts a 45-degree unfilled corner and an adjustable liquid layer design, rapid switching of transmission and fluorescence modes is supported, screws or adhesive tape fixation is avoided, the integrated cavity shortens the electrode replacement time to be less than 1 minute, the test efficiency is remarkably improved, the liquid leakage risk is reduced, a corrosion-resistant material is matched with an acid / alkaline electrolyte, and the service life of the electrolytic tank is prolonged. The modular structure can be expanded to different reaction systems, and is convenient to modify to adapt to other synchrotron radiation testing technologies.

The invention belongs to the technical field of gas field water flow meter measurement, and particularly discloses a two-phase flow measuring device and method resistant to oil and gas field water corrosion. The device is used for measuring gas field water in a pipeline and is matched with a flow totalizer. Comprising a first differential pressure flowmeter used for measuring the mass flow of gas in a pipeline, a second differential pressure flowmeter used for measuring the mass flow of liquid in the pipeline, a temperature sensor used for measuring the temperature of the gas in the pipeline, and a liquid level differential pressure transmitter used for measuring the liquid level in the pipeline. The temperature sensor, the first differential pressure flow meter, the second differential pressure flow meter and the liquid level differential pressure transmitter are respectively connected with the flow totalizer. According to the invention, the problems of gas and liquid two-phase flow measurement, accurate sulfur-containing gas field water measurement and the like can be solved under the condition that gas field water components contain corrosive (especially sulfur-containing components), non-full pipe flow and liquid phase flow velocity.

The invention discloses a recoverable high-enthalpy-value solid-solid phase change material and a preparation method thereof. Solid phase constraint of a liquid phase change material is achieved through a topological entanglement effect generated by a hydrogen bond network and polymer macromolecules. The coupling effect of the two limits the movement between low-molecular-weight phase change material molecules at the phase change temperature, and high-temperature solid-solid phase transformation is achieved. The solid-solid phase change material prepared by the method has a high enthalpy value and also has recoverability. In addition, due to the excellent light absorption capacity of the graphene oxide sheet, the graphene oxide sheet has a potential excellent function in the aspect of solar photo-thermal conversion.