75 results about "Distillation method" patented technology

The invention provides a production method of high-purity sponge titanium. The production method comprises the following steps: firstly, obtaining refined magnesium and refined titanium tetrachloride after secondary refining; then feeding the refined magnesium and the refined titanium tetrachloride into a reactor subjected to titanizing treatment, and carrying out reduction and vacuum distillation in a protective atmosphere by adopting a reduction distillation method to obtain a sponge titanium lump; and finally, the sponge titanium lumps are subjected to surface impurity material stripping, then temperature-controlled crushing and screening are conducted, four-stage sorting including color sorting, magnetic sorting, winnowing and manual sorting is conducted, and the high-purity sponge titanium is obtained. According to the method, the refined titanium tetrachloride is used for purifying the crude magnesium, so that the high-purity production raw material is obtained; in the magnesiothermic reduction vacuum distillation process of titanium tetrachloride, a blocking method of impurities of Fe, Cr and Ni is adopted, and a pure sponge titanium lump is obtained; and identifying and separating high-iron, high-chlorine, high-oxygen and high-nitrogen impurity materials in the sponge titanium by adopting sorting methods such as color sorting, winnowing, screening, magnetic separation and the like to finally obtain the high-purity sponge titanium.

A distillation method includes supplying a batch type distillation column with a liquid that is a process fluid; increasing pressure and temperature of a fluid, with a compressor and supplying the fluid to a reboiler; exchanging heat in the reboiler between the liquid, which has been supplied to the distillation column, and the fluid, which has been increased in pressure and temperature, to heat the liquid and acquire overhead vapor and to condense the fluid; delivering the overhead vapor to a condenser and condensing the overhead vapor into a condensate through heat exchange, removing the condensate; removing residual liquid from the distillation column; and regulating pressure of the distillation column to distill the liquid with heat generated by a heat pump operated over a narrower temperature rising range in the pressure-temperature increasing step.

This invention relates to the field of separation and purification, and particularly to a distillation method for Forsythia suspensa volatile oil, comprising the following steps: Step (1) Crush dried Forsythia suspensa fruit and mix it with water at a mass ratio of 1:3-5, grinding until the particle size D90≤50μm to obtain Forsythia suspensa slurry; Step (2) Add porous medium A particles with a particle size of 0.5-1mm and water-absorbing medium B to the Forsythia suspensa slurry obtained in Step (2), stir and mix for 20-40min to obtain a cake; Step (3) Mix the cake with moistened porous medium C particles with a particle size of 1-3cm, then load it into a distillation kettle for distillation, collect the distillate and separate to obtain Forsythia suspensa volatile oil. This scheme optimizes the distillation process, improves distillation efficiency, and solves the clogging problem caused by excessively fine grinding of raw materials, thereby meeting the industrial production demand for efficient and stable extraction of Forsythia suspensa volatile oil.

This invention discloses a method for preparing high-purity Si-75, comprising: S1, adding sodium sulfide, sulfur, and deionized water in a molar ratio of 1:(1.0~1.1):(5~8) to a reaction vessel, adding a buffer, and reacting at 80~90℃ for 1~2h; S2, adding a phase transfer catalyst and a hydrolysis inhibitor to the system, adding γ-chloropropyltriethoxysilane dropwise, and reacting at 85~95℃ for 3~5h, allowing the mixture to stand and separate into layers after the reaction, to obtain an organic phase; S3, subjecting the organic phase to short-path distillation and then filtering to obtain high-purity Si-75. Compared with existing technologies, this invention uses a phosphorus-free buffer system, which simplifies waste treatment. It uses water as the reaction medium and does not use large amounts of organic solvents, making it suitable for continuous industrial production. By adding hydrolysis inhibitors, hydrolysis can be effectively prevented during the reaction, increasing safety. The short-path distillation method provides high purification efficiency and can quickly remove impurities. The product has a disulfide content of ≥98.5% and a color of 0 (Gardner color number), which is of great significance to the light-colored rubber industry.

The application provides a purification method and dichloroisocyanurate obtained by using the method. The purification method of dichloroisocyanurate comprises the following steps: repeatedly crystallizing crude dichloroisocyanurate obtained in a production synthesis process to obtain purified dichloroisocyanurate. The purification method of dichloroisocyanurate of the application utilizes the different melting points of dichloroisocyanurate and other impurities, and is designed to be repeatedly crystallized at different gradient temperatures. By adjusting the crystallization temperature and the crystallization time, the impurities in the dichloroisocyanurate can be removed. Compared with the crude distillation method, the obtained dichloroisocyanurate has higher purity, and is safer and easier to operate.

The embodiment of the present application belongs to the technical field of seawater desalination, and particularly relates to a seawater distillation module, a seawater distillation device, a seawater distillation system and a distillation method. The seawater distillation module comprises a material liquid layer, an air gap layer, a gas permeable layer and a condensation layer. The material liquid layer has an inlet liquid side for guiding seawater to enter and an outlet liquid side for guiding seawater to flow out. The air gap layer is arranged opposite to the material liquid layer. The gas permeable layer is arranged between the material liquid layer and the air gap layer, and is used for separating the material liquid layer and the air gap layer. The gas permeable layer is used for allowing the seawater in the material liquid layer to pass through after being heated, and enter the air gap layer. The condensation layer is used for condensing the water vapor entering the air gap layer, so as to produce fresh water. Compared with the prior art, the seawater distillation device can meet the production of fresh water in island reef areas.

The application discloses a distillation device and method for nitric acid purification, and relates to the technical field of nitric acid distillation.The distillation device for nitric acid purification comprises a device frame, a motor is fixedly installed above the device frame, an exhaust pipe is fixedly installed on the circumferential surface of the device frame, a feed pipe is fixedly penetrated through the circumferential surface of the device frame, an air outlet pipe is fixedly penetrated through the circumferential surface of the device frame, a condenser pipe is fixedly installed in the device frame, and the device frame is internally provided with a rotating rod, a connecting pipe, a rotating shaft, a fan blade, a convex plate, a supporting block, a connecting plate, a sleeve, a circular plate, an arc block, a supporting plate and an arc plate.The rotating rod is fixedly installed at the output end of the motor, the connecting pipe is fixedly installed in the device frame, and the rotating shaft is rotatably installed on the circumferential surface of the connecting pipe.The distillation device for nitric acid purification realizes the up-and-down movement of the fan blade while rotating, prevents the internal stratification of nitric acid, and causes incomplete distillation.

This invention discloses an energy-saving five-tower methanol distillation method based on multi-effect thermal coupling. Crude methanol is fed to a pre-tower for distillation; the bottom product of the pre-tower is fed to an atmospheric distillation tower, the bottom product of the atmospheric distillation tower is fed to a negative pressure distillation tower, and the bottom product of the negative pressure distillation tower is fed to a pressurized distillation tower; the bottom product of the pressurized distillation tower is fed to a secondary pressure distillation tower; refined methanol is collected from the tops of the pressurized distillation tower, the atmospheric distillation tower, the negative pressure distillation tower, and the secondary pressure distillation tower; the top product of the pressurized distillation tower heats the reboiler of the secondary pressure distillation tower, and the top product of the secondary pressure distillation tower heats both the reboilers of the pre-tower and the atmospheric distillation tower; the top products of the pre-tower and the atmospheric distillation tower heat the reboiler of the negative pressure distillation tower. This process improves the heat recovery efficiency within the system, significantly reduces the condensation load of the top vapor, lowers the overall energy consumption of the distillation process, and achieves efficient multi-stage heat recovery and utilization within the system, reducing the ethanol content in the refined methanol product and improving methanol recovery efficiency.

A distillation device includes a batch type distillation column, a reboiler that heats and vaporizes liquid, which is a process fluid supplied to the distillation column, into vapor, a displacement compressor that draws in fluid for heating the liquid and increases the fluid in pressure and temperature, and supplies the fluid to the reboiler, a condenser that condenses overhead vapor of the distillation column into a condensate, a distillate withdrawal portion that removes the condensate condensed by the condenser, and a discharged liquid withdrawal portion that removes residual liquid from the distillation column. The compressor includes an actual volume flow rate regulation mechanism that varies an actual volume flow rate of the fluid, which is increased in pressure and temperature by the compressor, in accordance with a change in a required heating temperature of the reboiler during operation of the distillation device.

Title of the invention: Method for defrosting an air separation apparatus by cryogenic distillation. During the defrosting of an air separation apparatus by cryogenic distillation, defrosting gas is sent to a heat exchanger (15) and from the heat exchanger to the top of a column (21) via a line (C6) used in normal operation to draw nitrogen, entering the column, defrosting gas is drawn from the tank of the second column via a line and sent to the heat exchanger and then to the air, a flow of defrosting gas is sent to the top of another column via a line (C7) at a temperature above 0°C, defrosting gas is drawn from the other column via the line used in normal operation to send air to the other column, sent to the heat exchanger and sent to the air. Abstract figure: Fig. 2

This application discloses an automated distillation method and system for Maotai-flavor liquor based on dual-stillation collaboration, belonging to the field of Maotai-flavor liquor brewing technology. The method is implemented using a system with a dual-stillation shared detection module, an intelligent decision-making module, and a valve island control execution module. It includes first calibrating the alcohol content thresholds and process parameters for the heads, main body, and tails of the liquor according to the brewing cycle; then completing system self-checks such as pipeline cleaning and sensor calibration; scheduling dual-stillation operations based on the distillation time difference; collecting liquor parameters in real time; automatically completing the graded distillation and path switching for the heads, main body, and tails; determining distillation termination based on alcohol content and duration; supporting rotation of dual-stillation detection stations; and finally, resetting the system and archiving data. This technical solution achieves full automation and standardization of the distillation process, improves the yield and quality stability of high-quality liquor, reduces hardware investment and labor costs, avoids the subjective errors and timeliness issues caused by manual operation, and is suitable for large-scale dual-stillation production of Maotai-flavor liquor.

The present disclosure provides an equipment for production of butanol and octanol and a triple-effect distillation method, comprising two processes: butanol separation and octanol separation, both processes use same feedstocks to obtain n-butanol, iso-butanol and octanol products through different procedures, respectively, wherein butanol separation process is sequentially divided into hydrogenation, removal of light and heavy components and separation of isomeric; and octanol separation process is sequentially divided into separation of isomeric, hydrogenation and removal of light and heavy components; the removal of light and heavy components for butanol is carried out by a butanol pre-distillation column and a butanol distillation column, and the separation of isomeric for butanol is carried out by a first butanol isomer column and a second butanol isomer column; and the separation of isomeric for octanol is carried out by a first butyraldehyde isomer column and a second butyraldehyde isomer column.

The present invention relates to the technical field of chemical metallurgy, and provides a method for preparing and purifying high-purity vanadium sponge. The method comprises: preparing a vertical vacuum reduction furnace, adding a reducing agent thereto, removing air from the furnace and introducing a protective gas thereinto; performing heating, adding vanadium chloride, then performing smelting, and after removal, placing same into a distillation furnace for heating and temperature-holding treatments; and finally, placing a product into a crucible in an electron beam furnace, performing evacuation, heating same to perform smelting, introducing a protective gas into the electron beam furnace after smelting, and cooling same to room temperature, so as to obtain a vanadium sponge product. In the present invention, high-purity vanadium sponge is prepared from a chloride of vanadium by means of a new metallothermic reduction-distillation method, and is further purified by means of vacuum electron beam refining. Therefore, the common technical problems of a long process, a low product purity, etc., during the preparation of high-purity vanadium metal by means of traditional methods are solved.

The invention belongs to the technical field of perfume extraction, and particularly relates to a method for subcritical extraction of spearmint essential oil and application of the spearmint essential oil, the extraction method comprises the following steps: drying spearmint whole herb, crushing, adding spearmint whole herb powder into a subcritical extraction tank, using propane as an extraction agent, and collecting subcritical extraction fluid; adding the collected subcritical extraction fluid into an evaporation tank, and carrying out reduced pressure evaporation to obtain spearmint extract; and carrying out molecular distillation on the obtained spearmint extract, and collecting light components to obtain the spearmint essential oil. The subcritically extracted spearmint essential oil is purified by adopting a molecular distillation method, component separation of the spearmint essential oil can be realized at a relatively low temperature, and high-purity and high-quality spearmint essential oil is obtained while natural aroma components of the spearmint essential oil are reserved.

The application provides a method for determining the Re-Os isotope of chromite, comprising the following steps: weighing the chromite sample and adding it into a Carius tube; transferring the accurately weighed mixed diluent to the Carius tube under a refrigerated condition by using HCl; after freezing, adding HNO3 and H2O2 into the Carius tube in sequence and continuing to freeze, wherein the volume ratio of HNO3, HCl and H2O2 in the Carius tube is 4:4:1; after the Carius tube is closed, it is placed in an oven for heating for a preset time to dissolve the sample; the Re and Os in the sample solution are separated by using a direct distillation method; and the Re in the residual solution after distillation and the Os in the distillation absorption solution are enriched and purified, and high-precision Re-Os isotope determination is performed. The method has a lower overall process blank, can ensure high-precision analysis of chromite samples with extremely low Re content, and reduces the problems of Os cross contamination and sample loss.

According to an example aspect of the present invention, there is provided a method of removing volatile compounds from a lignin-containing material, the method comprising: providing a material comprising lignin and volatile compounds; treating the material by a distillation method in order to vaporize at least a part of the volatile compounds.

Title of the invention: Method for starting an air separation apparatus by cryogenic distillation. In a method for starting an air separation apparatus by cryogenic distillation, the apparatus comprises a first column (3) operating at a first pressure and a second column (5) operating at a second pressure lower than the first pressure. The second column has a tank vaporizer (4) connected to be heated by a nitrogen-enriched gas from the first column, and means for delivering an oxygen-enriched fluid to the tank of the second column, connected to a heat exchanger (6) to ensure the heating of the oxygen-enriched fluid. To start the apparatus, air is sent to the first or second column, and then liquid nitrogen is sent below the vaporizer from an external source (1). Abstract figure: Figure 1

The separating device comprises a separating tank, a steam pipeline and an upper clamping plate, one side of the upper end of the separating tank is communicated with a liquid inlet pipeline, one side, far away from the liquid inlet pipeline, of the separating tank is communicated with a water outlet pipeline, the liquid inlet pipeline is distributed at the upper end of the water outlet pipeline, a through hole is formed in the middle of a heating disc, and the steam pipeline is communicated with the upper clamping plate. And the bottom of the through hole communicates with a waste liquid conveying pipeline, and an upper clamping plate is erected in the separation tank. When the separating device for alcoholic fermentation is used, alcohol and mixed liquid are separated by adopting a distillation method, when the steam pipeline heats the mixed liquid to a position between the boiling point of the alcohol and the boiling point of water (such as 78-100 DEG C), the alcohol is vaporized into steam, substances with higher boiling points, such as water, are still left in a liquid phase, and the vaporized alcohol steam is cooled by the condensing pipe and then is separated from the mixed liquid. Therefore, the high-concentration alcohol solution is separated from other substances, and the requirement for separating the alcohol from the mixed liquid is met.

To provide a molecule removal method and a molecule removal device that can remove molecular components of which removal is difficult by only a molecular distillation method.SOLUTION: A molecule removal method for removing molecule components from a base oil has: a process (a) in which in the state that a container, in which there are the base oil and a stirrer located in the base oil, is arranged in a chamber, the interior of the chamber is evacuated; and a process (b) in which in the state that a pressure in the chamber becomes less than 1 mPa by evacuation, the stirrer is rotated to stir the base oil.SELECTED DRAWING: Figure 1

This invention discloses a method for preparing strontium-based metal-organic framework materials and their application in separating water and heavy water, belonging to the field of environmental functional materials preparation and application. The preparation method includes: dispersing a strontium source and an organic ligand in a mixed solution, and reacting them in a reactor to obtain the strontium-based metal-organic framework material. This method does not require strong acids or bases, and the raw materials used in the synthesis are inexpensive, allowing for large-scale preparation. The strontium metal center coordinates with both the carboxyl and hydroxyl groups in the organic ligand, thus the prepared strontium-based metal-organic framework material exhibits good water stability and demonstrates excellent water and heavy water adsorption and separation performance at room temperature. Compared with the traditional distillation method (separation factor 1.02), the H2O / D2O adsorption ratio is increased by 24%, which is expected to achieve efficient separation of low-content D2O under practical conditions, significantly reducing the energy consumption required for water isotope separation.

The invention discloses a method for extracting turmeric volatile oil by using a deep eutectic solvent in combination with ultrasonic-assisted steam distillation, which comprises the following steps: crushing turmeric tablets to obtain turmeric powder; mixing the turmeric powder with a deep-eutectic solvent, adding distilled water, carrying out ultrasonic-assisted extraction, standing and soaking to obtain a turmeric extract; performing steam distillation on the turmeric extract, and collecting to obtain turmeric volatile oil. According to the method, the COSMO-RS model is combined with the infinite activity coefficient and other key parameters, proper hydrogen bond acceptors (HBA) and hydrogen bond donors (HBD) are screened to construct the natural deep-eutectic solvents (NADESs) as the extraction solvents, then the ultrasonic-assisted steam distillation method is combined to extract the turmeric volatile oil, the extraction rate of the turmeric volatile oil is remarkably increased, and the method is environmentally friendly and low in cost.

The invention discloses a method for measuring solid content of volatilization-inhibiting and protection organic silicon slag slurry, which comprises the following steps: weighing a certain amount of organic silicon slurry, adding an extracting agent, mixing, carrying out centrifugal separation, separating solid from liquid, recycling the used extracting agent at the upper layer through distillation, adding a separating agent into the silicon slag at the lower layer, uniformly stirring, centrifuging again, and collecting the solid content of the organic silicon slag at the lower layer; and after solid-liquid separation, lower-layer silicon slag is dried in a drying mode and then weighed, and finally the solid content result of the silicon slurry is obtained. By means of adding an extracting agent, a separating agent and the like, the method aims at solving the problems of serious distortion of measurement results, high operation risk, serious environmental pollution and the like caused by violent volatilization and hydrolysis of chlorosilane monomers and uncontrollable side reaction of the chlorosilane monomers and reactive hydrogen-containing solvents (such as alcohols) in the existing method for measuring the solid content of the organic silicon slurry. Meanwhile, the extracting agent and the separating agent can be recycled after high-boiling-point substances are separated in a distillation mode, the method has the advantages of being easy to operate, good in repeatability, environmentally friendly and the like, multiple measurement results RSD are smaller than 1%, and the detection requirement is completely met.

The invention discloses a DETR-CNN heterogeneous distillation method for steel surface defect detection. The DETR-CNN heterogeneous distillation method comprises the following steps: dividing multiple pieces of steel surface defect information into teaching samples and training samples; performing self-supervised training on the initial teacher model according to the teaching sample to obtain a target teacher model; respectively inputting the training samples into a target teacher model and an initial student model for feature extraction to obtain teacher intermediate features and student intermediate features; performing feature projection on the student intermediate features and the teacher intermediate features through an initial student model and a target teacher model to obtain a student projection feature vector and a teacher projection feature vector; optimizing model parameters of the initial student model based on a spatial relationship between the student projection feature vector and the teacher projection feature vector and a target teacher model according to a predicted defect of the steel surface defect information to obtain a target student model; inputting the to-be-detected steel surface information into the target student model to obtain a steel surface defect detection result.

The application provides a method for extracting metal in transformer oil by using ionic liquid and recycling the ionic liquid. Some functional groups in the ionic liquid, including halogen, hydroxyl, sulfide, urea and thiourea, can form complexes with metal ions in the transformer oil. Thus, the metal ions are extracted from the transformer oil into the ionic liquid, and the metal impurities in the transformer oil are removed. The ionic liquid is used to extract the metal in the transformer oil, so that the metal substances in the oil are reduced, and the insulation performance of the transformer oil is improved. After the metal impurities in the oil are removed, the long-term and safe operation of the transformer is ensured. After the used ionic liquid is treated by the steps of rough filtration, cation exchange resin treatment, reduced pressure distillation and evaporation crystallization, the ionic liquid can be recycled. Compared with other methods, the recovery conditions of the above steps are economical and efficient, and organic reagents are not needed, so that the application of the ionic liquid in the power system is provided.

The invention provides a preparation method of cuba balsam tree resin volatile oil and a cosmetic. The preparation method of the cuba balsam tree resin volatile oil comprises the following steps: extracting cuba balsam tree resin; mixing the coba balsam tree resin with water, and obtaining a first semi-finished product by using a steam distillation method; and drying the first semi-finished product, and purifying the dried first semi-finished product by using a short-range molecular distillation method to obtain the cuba balsam tree resin volatile oil. The preparation method has the beneficial effects that the purified cuba resin volatile oil is obtained, the use amount in a formula is reduced under the condition of realizing the same soothing effect, and meanwhile, the cosmetics are prevented from being possibly irritated by other impurities.

The utility model relates to juice extraction mechanism technical field, and disclose a kind of wormwood juice extraction mechanism, including the stirring tank being arranged with broken area and stirring area, motor, pivot, broken knife, stirring rod, lifting assembly, stirring table, through hole, anti-friction gap, annular water pipe, water spray hole, enzyme solution feed pipe, feed channel, discharge channel and valve.This structure is generally not more than 60 ℃ using enzymatic method reaction temperature, can effectively extract polysaccharide, flavone etc. Non-volatile substance in wormwood juice, while avoiding long time heating and high temperature to volatile oil component structure and the destruction of heat-sensitive component, improve the quality and the integrity of component of wormwood juice extraction, while the juice rate of enzymatic method is more efficient compared with distillation method and water bath method;By setting broken area and stirring area, and broken knife, stirring rod etc. Component, the crushing of wormwood and the sufficient mixing with enzyme solution are realized, improve the efficiency and effect of enzymatic reaction.

The invention discloses a double-effect distillation system and an ethanol distillation method, and belongs to the technical field of distillation. The system is mainly used for recovering alcohol from waste liquid (containing 10-30% of ethanol, diatomite and protein) extracted by a low-temperature ethanol method, the waste liquid is stored in a storage tank at the temperature of-5 DEG C, heat is comprehensively utilized, alcohol-containing gas from the top of a second-effect tower 2 and waste water from the bottom of a first-effect tower 1 are used, and the waste liquid is recycled. And the wine gas is preheated in the wine gas preheater 8 and the waste water preheater 11, so that energy is saved. By means of the overall optimization design, only 0.5 ton of steam needs to be consumed for producing one ton of 95% alcohol, and the energy-saving effect is obvious. In addition, the method decomposes fishy smell substances in the waste liquid by means of negative pressure and the like, reduces the fishy smell in the recovered alcohol, avoids secondary filtration of the product, has the effects of energy conservation, emission reduction, quality improvement and efficiency improvement, and has important economic value and social benefit.

This invention discloses a high-vacuum molecular distillation method for the fine separation of Fischer-Tropsch wax, belonging to the field of Fischer-Tropsch wax separation technology. Using stable hydrofractionation column bottom No. 1 soft wax as raw material, a continuous high-vacuum molecular distillation process is employed for multi-stage separation, including the following steps: First-stage thin-film evaporation: The raw material is fed into a first-stage thin-film evaporator and evaporated at a temperature of 170-260℃ and a vacuum of 10-100Pa. The light component is collected by condensation as refined liquid wax, and the heavy component is sent to a decolorization and filtration unit; First decolorization filtration. This invention, by setting up a continuous multi-stage separation process combining first-stage thin-film evaporation, second-stage thin-film evaporation, and third-stage short-path distillation, and using stable hydrofractionation column bottom No. 1 soft wax as a single raw material, can simultaneously separate seven Fischer-Tropsch wax products with different dropping melting points: refined liquid wax, 45# wax, 60# wax, 70# wax, 80# wax, 105# wax, and 115# wax. This significantly enriches the product range of Fischer-Tropsch wax and solves the problem of limited product range in existing technologies.

This raw-material liquid concentration system is for use in a pharmaceutical product manufacturing process, and employs a membrane-distillation method involving: bringing a raw-material liquid containing a solvent and a solute into contact with cooling water through a membrane-distillation membrane; passing the solvent in the raw-material liquid through the membrane-distillation membrane in the form of vapor; and causing the solvent to move toward the side of the cooling water, wherein the membrane-distillation membrane is a porous membrane that has a water contact angle of at least 90° at the surface thereof, has an average pore diameter of 0.02-0.5 μm, and has a porosity of 60-90%.

The invention relates to the technical field of spirit distillation, in particular to a white spirit distillation system with a filtering structure and a distillation method.According to the white spirit distillation system with the filtering structure and the distillation method.Before heating is started, the liquid volume value and the alcohol concentration value of mash in a raw material tank are collected in real time, and traceable raw material parameters are formed through time labels and batch numbers; basic data with batch consistency is established for subsequent heat distribution, so that thermal power output and adjustment of steam pressure can be directly associated with a matching relationship between a tower plate liquid level and a temperature difference ratio, a matching result is converted into a staged power sequence by means of a genetic algorithm, and the flow of a main pipe and branch pipes is synchronously recorded, so that the flow of the main pipe and the branch pipes is calculated. According to the method, the difference between the top temperature and the bottom temperature and the branch flow ratio are subjected to deviation value calculation, valve opening adjustment is executed on an abnormal branch with the flow and temperature corresponding relation, and flow distribution considering stability and energy consumption performance is screened out through Bayesian optimization, so that steam resources obtain higher balance in multiple channels.