191 results about "Vaporization" patented technology

The present disclosure discloses a method for simulating performance of an LNG ambient air vaporizer under a frosting condition, performing site operation test on the LNG ambient air vaporizer to obtain fitting relationship between the outer wall temperature of frosted finned tube and frost layer; transforming a sum of increased frost layer thermal resistance and thermal resistance into equivalent thermal contact resistance, and representing the equivalent thermal contact resistance as a function of the outer wall temperature; establishing a calculation model of the LNG ambient air vaporizer, performing simulation calculation by equivalent heat conduction coefficient, so as to obtain fluid-solid conjugate heat transfer characteristics and vaporization performance of the LNG ambient air vaporizer under the frosting condition. The influences of heat transfer in gas-liquid phase change flow and fluid-solid conjugate heat transfer in the tubes of the vaporizer under the frosting condition are considered in the present disclosure.

The invention discloses an unconventional feed quality assessment method and system, and relates to the technical field of unconventional feed quality assessment, and the method comprises the following steps: in a feed high-temperature drying treatment process, establishing a multi-dimensional sensing monitoring baseline, continuously obtaining mercury vapor concentration gradient, moisture evaporation rate and airflow velocity field data in a feed drying environment, and calculating the quality of the feed; forming a time sequence feature set reflecting the dynamic change of mercury vaporization; and constructing a gas-solid interaction analytical model by using the time sequence feature set, and carrying out coupling analysis on the mercury vapor migration trajectory and the temperature distribution and humidity distribution of the feed particle surface to generate a spatial distribution data set representing the spatial distribution feature of the mercury vapor redeposition region. According to the invention, the whole-process monitoring and dynamic regulation and control of mercury vaporization, migration and redeposition in the feed drying process are realized, through multi-dimensional monitoring, amplitude limiting control and high-frequency disturbance, the mercury distribution is balanced, the risk is reduced, the drying safety and the feed quality stability are improved, and the controllable management of heavy metal pollution is effectively realized.

The utility model discloses a chlorine gas vaporization energy-saving device, comprising a chlorine gas vaporization device and a chlorine gas buffer tank, wherein the chlorine gas vaporization device and the chlorine gas buffer tank are connected, the chlorine gas vaporization device is a parallel double-channel structure, the tube side of the chlorine gas vaporization device is connected to the liquid chlorine gasification pipeline, and the shell side of the chlorine gas vaporization device is connected to the hot water pipeline. The utility model has a simple and reliable structure, which not only fully recycles the sensible heat of steam condensed water, effectively reduces steam energy consumption, and greatly reduces the cost of steam use, but also realizes controllable temperature and pressure of chlorine gas vaporization, and solves the safety and environmental protection problem of nitrogen trichloride accumulation and emission in the chlorine gas vaporization process.

The invention belongs to the technical field of enhanced boiling heat exchange, and designs a non-uniform fractal micro-pit structure and super-hydrophilic composite surface, which comprises a micro-pit structure, a micro-pit structure area and a super-hydrophilic channel, the micro-pit structure and the micro-pit structure area can be obtained through a nanosecond laser micromachining technology, a non-uniform fractal micro-pit structure is formed on the surface of the copper base, and the super-hydrophilic channel can be obtained in a chemical oxidation mode. According to the non-uniform fractal micro-pit structure and super-hydrophilic composite surface, the number of vaporization cores can be increased under the low heat flux, the directional bubble convergence process can be achieved under the medium heat flux, liquid backflow can be enhanced under the high heat flux, bubble film forming can be delayed, and the critical heat flux can be increased; therefore, the enhanced boiling heat exchange effect under different heat flux densities is achieved.

The invention relates to the technical field of natural gas hydrates, in particular to a DSC (differential scanning calorimetry) correction-based multiphase flow system hydrate inhibitor loss prediction method, which comprises the following steps of: firstly, acquiring water activity and vaporization enthalpy of a sample under target salinity and ratio through two DSC tests, and regression a thermodynamic model according to the water activity and vaporization enthalpy to obtain a liquid-phase activity coefficient; the saturated vapor pressure of the inhibitor is calculated through the vaporization enthalpy obtained through DSC inversion and an anchor point method, a component distribution coefficient is obtained through combination of Poynting pressure correction and a gas phase fugacity coefficient, and a Rachford-Rice flash evaporation equation is solved to obtain an equilibrium phasor and composition; and then a first-order total mass transfer model is introduced to correct the actual vaporization loss, and droplet entrainment correlation is superposed to obtain the total flow loss of the inhibitor under the multiphase flow system. According to the method, the total flow loss of the hydrate inhibitor can be accurately calculated under the working conditions of high pressure, low temperature and salt-containing multiphase flow, so that a theoretical support is provided for adjusting an injection strategy of the inhibitor in real time.

The invention discloses a dynamic monitoring control system for a liquid nitrogen vaporization process, relates to the technical field of liquid nitrogen vaporization monitoring, solves the technical problem that liquid nitrogen vaporization cannot be regulated and controlled in advance due to the fact that environment monitoring cannot be performed in real time in the prior art, and particularly provides a dynamic monitoring control system for the liquid nitrogen vaporization process. The liquid nitrogen vaporization process is monitored in real time through a high-speed camera, and bubble formation, bubble growth and bubble escape phenomena in the liquid nitrogen vaporization process are monitored and analyzed according to monitoring pictures; the method comprises the following steps: carrying out environment temperature area monitoring on liquid nitrogen vaporization, taking a liquid nitrogen vaporization container as an area center, obtaining various types of area marks according to the area center, carrying out temperature influence analysis through various types of area analysis, collecting tank body area floating data and tank body area influence data after the temperature influence analysis is finished, and inferring whether the liquid nitrogen vaporization state is qualified or not according to the data analysis. If yes, the next step is carried out, and if not, regulation and control are carried out.

The present invention discloses a low-boiling-point slow-release cooling fire extinguishing agent, a preparation method thereof, and an application thereof, belonging to the technical field of fire extinguishing materials. The fire extinguishing agent is formed by combining and compounding a low-boiling-point gas fire extinguishing agent having a boiling point below 0°C under standard atmospheric pressure, a hydrophobic porous adsorption powder, and an adsorption improver; wherein the mass ratio of the low-boiling-point gas fire extinguishing agent, the porous adsorption powder, and the adsorption improver is 60-90:10-40:0.1-6. The present invention delays the vaporization of the low-boiling-point gas fire extinguishing agent by adding a porous adsorption powder material to the liquid low-boiling-point gas fire extinguishing agent, thereby effectively solving the problem of the low-boiling-point gas fire extinguishing agent being completely vaporized in the fire extinguisher bottle or pipeline when released; by adding the adsorption improver, the polarity and surface tension of the liquid low-boiling-point gas fire extinguishing agent are regulated to enhance the adsorption effect; the hydrophobic porous adsorption powder can significantly reduce the agglomeration of the solid powder and enhance its flow properties.

The invention relates to the field of bromine preparation, in particular to a vaporization process for preparing high-purity bromine, which comprises the steps of raw material pretreatment, oxidation reaction, gaseous bromine graded recovery, liquid phase residual bromine enhanced extraction, organic extraction separation and rectification purification. Bromine hydrolysis is inhibited by accurately controlling reaction conditions, and efficient gasification separation of bromine is realized by utilizing multi-stage condensation and segmented evaporation; tail gas is treated by a compound purification system to ensure that environmental protection reaches the standard; impurities are removed through the synergistic effect of extraction and rectification, and finally high-purity bromine is obtained. The process overcomes the defects of low yield and high energy consumption of the traditional method, has the advantages of high efficiency, energy conservation, environmental protection and the like, and is suitable for large-scale industrial application.

The invention discloses a material modification method and a material modification device, and relates to the technical field of material modification.The material modification method comprises the following steps that S1, a to-be-modified material is added into a reaction chamber; s2, adjusting or maintaining the pressure in the reaction chamber at a set pressure, and adjusting and maintaining the temperature in the reaction chamber within a set temperature range; s3, adding a modifier into the reaction chamber; s4, stirring the to-be-modified material and the modifier in the reaction chamber; the lowest temperature in the set temperature range is higher than the melting point of the modifier under the set pressure and lower than the boiling point of the modifier under the set pressure; after the to-be-modified material is added into the reaction chamber and before the modifier is added, the pressure of the reaction chamber is greater than the saturated vapor pressure of the modifier after the to-be-modified material is added, so that the modifier cannot be vaporized after being added into the reaction chamber, and the absorptivity of the to-be-modified material to the modifier is improved.

The invention discloses a control method for stably recovering reaction heat of liquid-phase catalytic synthesis of chloromethane, which comprises the following steps: two-way shunting control of synthesis gas and reflux control of synthesis gas condensed acid, the first-way shunting control of the two-way shunting control of the synthesis gas comprises the following steps: enabling the synthesis gas to enter a first heat exchanger through a first control pipeline to vaporize methanol; according to the second-path split-flow control, the synthesis gas enters a second heat exchanger through a second control pipeline in a split-range control mode to be cooled; the first path of shunt control of the reflux control of the synthesis gas condensed acid is to form cascade control through the liquid level and the flow so as to return a liquid component into the synthesis reactor through a reflux pipeline, and the second path of shunt reflux control is to enable the liquid component to enter a hydrochloric acid storage tank through a discharge pipeline. The problem that in the prior art, steam needs to be additionally supplemented for methanol vaporization can be thoroughly solved, and long-time stable operation of the synthetic reaction can be guaranteed.

The invention belongs to the technical field of intrinsic safety of a gas-liquid phase mixing process, and particularly relates to a gas atomizing and mixing device. The device comprises a main pipeline, a first working part and a second working part. The first working part comprises a porous material membrane tube, and the porous material membrane tube comprises a membrane tube base body and an inner hole penetrating through the membrane tube base body in the axial direction of the porous material membrane tube. The second working part is arranged in the main pipeline, is of a Venturi tube type structure, and comprises a feeding section, a reducing section and an expanding section which are connected in sequence. The device can effectively atomize the combustible liquid and effectively vaporize atomized combustible liquid drops, and can remarkably reduce the burning and explosion risk caused by poor atomization and vaporization of the combustible liquid and non-uniform mixing of combustible steam and oxidizing gas in chemical production.

The application discloses a supercritical CO2 pipeline venting system and method based on bilateral venting, which comprises a valve chamber cutoff system, a valve chamber venting system, a medium introduction and heating system and a low point temporary temperature detection system. In the early stage of venting, the two valve chambers are used for rapid venting. In the middle and late stages of venting, the single-side introduction of the upstream or downstream trunk pipe is used for pressure regulation and heating to promote the vaporization of the liquid accumulation. The low point temperature detection system is arranged, the venting rate of the cutoff pipeline is effectively improved, and the problem of extremely low temperature caused by the vaporization of the liquid phase accumulation in the low point area of the cutoff pipeline is overcome. The application can realize efficient and safe operation of the planned venting of the supercritical CO2 pipeline.

Disclosed herein is a storage system for storing low latent heat of vaporization gases comprises a primary storage tank for storing a liquid having a latent heat of vaporization of less than or equal to 1000 joules per gram, and a secondary storage tank comprising a porous sorbent for reversibly storing a boil-off gas released from the primary storage tank.

The utility model provides a liquid 1-butene vaporization device, and relates to the technical field of chemical raw material quality inspection, the liquid 1-butene vaporization device comprises a sampling steel cylinder, a vaporization chamber, a non-adsorption aluminum foil gas bag and a six-way gas sample injection valve, the device ensures the controllability of the total amount of vaporized sample gas and the consistency of the composition proportion by accurately quantifying a liquid sample, and the liquid 1-butene vaporization device is simple in structure and convenient to operate. By means of complete vaporization of the vaporizing chamber and buffering of the non-adsorption aluminum foil air bag, vaporized sample components are mixed evenly, light and heavy components of a gas sample collected by the six-way gas sample injection valve are distributed evenly, the sample detection accuracy is ensured, the sample cannot be adsorbed in the sampling process, and the sampling efficiency is improved. According to the device, a taken sample can be completely vaporized through the vaporizing chamber, and a completely vaporized gaseous sample can be completely transferred through the arrangement of the one-way valve, so that errors cannot be caused to later detection of the sample, and the problems that in the prior art, a detection result is deviated, and errors are easily caused to later detection of the sample are solved.

The present invention relates to the technical field of vaporizers. Provided is a vaporizer for chemical vapor deposition, comprising: an atomizer configured to break a liquid into liquid droplets; a heating container, wherein a container wall of the heating container is configured to form a first heat exchange surface, a filter is provided inside the heating container, atomized liquid droplets enter the heating container, the filter is configured to intercept the liquid droplets or other particles, and the first heat exchange surface heats a gas in the heating container so that the gas exchanges heat with the liquid droplets to vaporize the liquid droplets; and a reaction chamber, wherein vaporized liquid droplets enter the reaction chamber for a chemical vapor deposition reaction. The present invention has the advantages of stability, precise flow control, complete vaporization, low possibility of thermal decomposition, precise control of low flow rates, high vapor content, maintenance-free operation, low carrier gas consumption, fast response speed, small size, high level of integration, etc.

Embodiments herein relate to compound detection systems. In an embodiment, a compound detection system includes an input opening to a flow path for receiving a fluid sample, a capture structure for receiving the fluid sample, a heating element configured to heat the capture structure to a temperature to vaporize first components of the fluid sample, and a detector assembly configured to receive the vaporized first components and to detect the presence of compounds among the first components, wherein the system includes a vaporization agent and can be configured so that the vaporization agent can be vaporized by the heating element.

The present application relates to natural gas hydrate technical field, especially relates to a kind of hydrate inhibitor loss prediction method of multiphase flow system based on DSC correction, first by two kinds of DSC test obtains the water activity and vaporization enthalpy of sample under target salinity and proportion, and accordingly regression thermodynamic model obtains liquid phase activity coefficient;Again, the saturated vapor pressure of inhibitor is calculated with DSC inversion vaporization enthalpy and anchor point method, combined with Poynting pressure correction and gas fugacity coefficient obtains component distribution coefficient, solves Rachford-Rice flash equation and obtains equilibrium phase and composition;Subsequently, the first-order overall mass transfer model is introduced to correct actual vaporization loss, and the total loss of inhibitor flow under multiphase flow system is obtained by superimposing droplet entrainment correlation.The present application can accurately calculate the total flow loss of hydrate inhibitor under high pressure, low temperature and salt-containing multiphase flow conditions, thereby providing theoretical support for real-time adjustment of inhibitor injection strategy.

The invention provides a gas tank, thin film deposition equipment, a control method and a storage medium. The gas tank comprises a tank body, a cold air pipeline, a vaporization detector and a controller. An air inlet is formed in the box wall of the box body, and a vaporizer of a precursor is arranged in the box body. The first end of the cold air pipeline is connected with a cold air source, the second end of the cold air pipeline is connected with the air inlet of the box body, and a valve is arranged in the cold air pipeline. And the vaporization detector is configured at a gas outlet of the vaporizer. The controller is connected with the valve and the vaporization detector, and is configured to obtain the vaporization rate of the vaporizer to the precursor through the vaporization detector; and the opening degree of the valve is adjusted according to the vaporization rate, so that the environment temperature in the box body is adjusted. The vaporizing rate of the vaporizer to the precursor can be detected, the opening degree of the valve of the cold air pipeline is adjusted accordingly, sufficient vaporizing of the vaporizer to the precursor is ensured, and the problem that particle pollution is introduced into the process chamber due to insufficient vaporizing is avoided.

The utility model discloses a vaporization device for liquid chlorine raw materials, which relates to the technical field of vaporization of liquid chlorine raw materials and comprises a vaporization cylinder, a water inlet pipe is fixed at the bottom of the outer side wall of the vaporization cylinder, a drain pipe is fixed at the top of the outer side wall of the vaporization cylinder, and a liquid chlorine inlet pipe is fixed at the bottom of the outer side wall of the vaporization cylinder in a penetrating manner. A chlorine discharge pipe is fixed to the top of the outer side wall of the vaporization cylinder in a penetrating mode, a spiral pipe is fixed between the end of the liquid chlorine inlet pipe and the end of the chlorine discharge pipe, a turbulent flow mechanism is fixed to the top of the vaporization cylinder, and a flow division buffering mechanism is fixed to the outlet end of the chlorine discharge pipe; according to the vaporization device for the liquid chlorine raw material, water in the vaporization cylinder is disturbed through the arrangement of the turbulent flow mechanism, so that all parts of an internal water body are mixed, the temperature of all parts of the internal water body is guaranteed to be uniform during vaporization heat absorption, and the situation that the vaporization effect is affected due to uneven heating is avoided.

A system and method for controlling the temperature of a medium by refrigerant vaporization, working gas condensation, or a combination of both, the system including a container, at least one working gas storage tank having at least one storage tank section including a wall thermally coupled to a volume of medium within the container and having an exterior surface constructed to provide a volume of medium thermal coverage within the container, and a condenser for regulating working gas condensation in the storage tank, whereby the working gas storage tank forms a vapor space in each of the at least one storage tank section in response to receiving working gas and regulating condensation in the condenser to enable working gas condensation at or near a selected temperature of a volume of medium within the container thermally coupled to the respective storage tank section.

The utility model provides an evaporator, thermosyphon heat exchanger and power conversion equipment, the evaporator comprises an evaporator body and a working medium guide structure arranged in the cavity of the evaporator body, and the area of the inner surface of the first side wall of the evaporator body corresponding to a heating point is a heated area. The working medium guiding structure is at least partially and correspondingly arranged in the heated area or arranged above the heated area, the working medium guiding structure is provided with a guiding face, and the guiding face extends in the direction away from the heated area. By adopting the scheme, the guide surface of the working medium guide structure guides the vaporized vaporizing working medium to at least one side far away from the heated area in a shunting manner, so that the situation that the vaporizing working medium vaporized after absorbing heat in the lower layer area of the heated area affects the heat exchange effect of the upper layer area of the heated area in the rising process is reduced; and the cooling effect of the evaporator on a heating point is further improved.

The invention provides a hydrocarbon waste liquid vaporization process and device, hydrocarbon gases such as butane and butene separated from methyl chloride synthesized by organic silicon monomers are pressurized and cooled into liquid, sent to a storage tank for storage, vaporized by a waste liquid vaporization device, and sent to an incineration device for stable combustion by controlling the liquid level of the vaporization device and the pressure of a gas phase outlet. The hydrocarbon waste liquid vaporization device can vaporize hydrocarbon waste liquid in an active mode, steam serves as a heating medium, the vaporization process is stable and safe, it is ensured that the hydrocarbon waste liquid is completely vaporized, meanwhile, condensed impurities in liquid hydrocarbons are removed in a precipitation mode, and the hydrocarbon gas quality is improved while efficient vaporization is conducted; hydrocarbon waste liquid flow input, the liquid level of the vaporizer and hydrocarbon waste liquid gas phase pressure are controlled through the self-control valve, stable operation of the vaporizing system is ensured, the combustion flame shape of the incineration device is stable, and combustion is more sufficient; the vaporizer adopts a coaxial sleeve type structure, is pressure-resistant and shock-resistant, is not easy to deform and block, performs forced convection heat exchange, and saves the heat exchange area.

A vapor source system based on vapor-liquid ejector supercharging combined with flash vaporization technology belongs to the technical fields of waste heat utilization and steam generation. The system comprises a vapor-liquid ejector, a flash vaporization tank and a intermediate heat exchanger, wherein the vapor-liquid ejector uses high-pressure steam to raise temperature and pressure of low-pressure water absorbed from the flash vaporization tank; the pressure-increased water is flashed into low-pressure saturated steam after entering the flash vaporization tank; the saturated water which is not flashed is collected at the bottom of the flash vaporization tank. The system generates multiple low-pressure flash vaporization saturated steam with a small portion of high-pressure steam, and realizes the recovery and utilization of waste heat such as flue gas of boiler, improves the economy of thermal process, and provides a flexible and adjustable vapor source for heavy oil thermal recovery, seawater desalination or sewage treatment equipment.

The invention discloses a critical fire extinguishing concentration testing method and device suitable for a non-azeotropic gas fire extinguishing agent, and belongs to the technical field of fire fighting, and the method comprises the steps of differentiated fire extinguishing agent filling, mass flow calibration, air and fire extinguishing agent steam volume flow correction and critical concentration calculation. The device comprises a filling part, a flow calibration part, a heating vaporization part and a fire extinguishing part, and the design of low-temperature condensation filling, high-pressure plunger pump conveying, high-temperature vaporization chamber vaporization and the like is adopted. A differential filling strategy of low-temperature condensation and high-pressure maintenance is provided, and the problem that low-boiling-point components are vaporized in advance is solved in cooperation with high-pressure plunger pump conveying and whole-course heat preservation pipeline design; a fire extinguishing agent is completely and uniformly vaporized by adopting a high-temperature vaporizing chamber, and an integrated testing device is constructed by combining an accurate calculation method of mass flow calibration and temperature correction. Accurate metering and stable testing of the non-azeotropic fire extinguishing agent are achieved, the result is reliable, core technical support is provided for research and development of a novel composite gas fire extinguishing agent, and universality and innovativeness are both achieved.

The embodiment of the invention provides a flash evaporation heat removal method and system for alkylation reaction products. The method comprises the following steps: separating an ionic liquid alkylation reaction product to obtain a hydrocarbon-rich phase and an ionic liquid-rich phase; the ion-rich liquid phase is atomized into liquid drops through a liquid spraying device or a dispersing device, the liquid drops are injected into a flash tank, all or part of hydrocarbons in the injected ion-rich liquid phase are flashed and vaporized into gas-phase hydrocarbons through pressure reduction, reaction heat is absorbed in the vaporization process, cooling of the non-vaporized ion-rich liquid phase is achieved, and a cooled ion-rich liquid phase is obtained; returning the cooled ion-rich liquid phase to the reactor for recycling; and gas-phase hydrocarbons are subjected to gas-liquid separation through a liquid separation tank, pressurized through a compressor and returned to the reactor for continuous reaction. The liquid drop atomization and flash evaporation technology is utilized, the heat exchange efficiency of the ionic liquid is remarkably improved, and meanwhile the cost of the heat exchanger is low.

The invention relates to the technical field of gas phase device control, and discloses a gas phase device control method, device and equipment and a storage medium. Calculating the first gas total pressure, the first hydrogen flow and the pipeline temperature based on a preset operation liquid phase pre-judgment algorithm to obtain a liquid phase possible value; if the liquid phase possible value is larger than the possible threshold value, a gas phase device bypass control instruction is generated; in the bypass working state, a gas phase device access control instruction is generated according to the current vaporization state and a preset error threshold value; through multi-dimensional parameter collection and intelligent pre-judgment, accurate identification of liquid phase risks and reliable switching of valve paths are achieved, actions are performed only during complete vaporization, misoperation is avoided, system logic is rigorous, gas phase conveying automation and control precision are improved, and continuous, stable and safe operation of trichlorosilane vaporization conveying is guaranteed.

The utility model relates to the technical field of chlorine preparation, and discloses chlorine gasification equipment which comprises a feeding pipe, one end of the feeding pipe is communicated with a dispersing pipe, the outer wall of the dispersing pipe is communicated with a conveying pipe, the other end of the conveying pipe is communicated with a vaporization pool, the inner wall of the vaporization pool is provided with a spiral pipe I, and the spiral pipe I is provided with a spiral pipe II. A first spiral pipe is arranged on the inner wall of the vaporization pool, a second spiral pipe is arranged on the inner wall of the vaporization pool, the two ends of the first spiral pipe and the two ends of the second spiral pipe communicate with circulating pools, one end of the first spiral pipe and one end of the second spiral pipe are each provided with a conveying pump, a gas conveying pipe is arranged at the upper end of the vaporization pool, and the other end of the gas conveying pipe communicates with a buffer tank. According to the utility model, the liquid chlorine is conveyed into the vaporization pool, and the spiral pipe I and the spiral pipe II are arranged in opposite directions, so that the temperature in the vaporization pool is uniform and stable, the vaporization efficiency is higher, and the vaporized chlorine is conveyed into the buffer tank through the gas conveying pipe and then is conveyed out from the buffer tank for application.

An indirect exothermic vaporization matrix for selectively vaporizing and / or atomizing a compound is provided. The matrix can include any one or more of the following features: a capillary structure, a vapor release path, a carbon filter, a recessed receiving area, a toroidal surface and toroidal geometry for uniformly loading and / or reloading the indirect exothermic vaporization matrix with various compounds, and so on.

The application discloses a new process for purifying alcohol ultra-clean high-purity reagent by rectification-double membrane method, which comprises the following steps: firstly, removing heavy components in alcohol ultra-clean high-purity reagent raw materials by simple rectification technology to obtain alcohol ultra-clean high-purity reagent with purity higher than 99.9%; and then, separating the alcohol ultra-clean high-purity reagent by membrane separation technology to remove other low-boiling volatile organic matters, metal ions and insoluble impurity particles, and obtaining SEMIG5 or above grade alcohol ultra-clean high-purity reagent on the permeation side by condensation. In addition, the alcohol ultra-clean high-purity reagent on the rejection side of the permeation vaporization returns to the rectification tower, and the evaporation enthalpy of the distillation process and the vaporization enthalpy of the membrane separation process are combined, so that the energy loss in the repeated vaporization and condensation process is reduced, and the energy utilization efficiency is improved.