30 results about "Continuous phase transition" patented technology

A multifunctional continuous phase transition extraction device comprises an extraction system, an analysis system and a solvent reclaiming system, wherein the extraction system comprises a first heat exchanger (8I), a extraction tank (1); the analysis system comprises a second heat exchanger (8II) and a first analysis tank (2I), a second analysis tank (2II), a first purifying pillar (3I), and a second purifying pillar (3II); the solvent reclaiming system comprises a first condenser (4I), a second condenser (4II), a first solvent tank (5I), and a second solvent tank (5II). According to the device, two paths of extraction circuits are formed. During the whole extraction process, the phase transition process of an extracting agent is instant and continuous; the extracting agent can be subjected to continuous phase transition and can be recycled, so that target objects can be extracted to the utmost extent, and accordingly, the efficiency is very high and the solvent consumption is small. Moreover, the whole process is performed in a sealed and low-pressure environment, the function is complete, and the purposes of safety and reliability are achieved. Therefore, the device is suitable for extraction of most natural products.

A multi-layered face mask coated with discontinuous patterns of phase change material are incorporated into the face mask construction to provide for cooling of the microclimate in the dead space of the face mask. Optimized cooling is achieved by strategic placement of layers coated with a phase change material within the mask construction and the amount and density of the phase change material in contact with the temperature sensitive areas of the face, as well as areas experiencing the maximum amount of flux from exhaled breath. The shape of the mask can also be adjusted to increase skin contact with the phase change material and decrease dead space volume, which reduces the volume of warm exhaled air and can provide sufficient cooling with less phase change material. The discontinuous patterns of phase change material also provide inter-layer spacing between the layers of the mask, which can improve splash resistance.

The invention discloses a method of extracting decapterus maruadsi oil through low-temperature continuous phase transition and decapterus maruadsi oil.The method includes: placing decapterus maruadsi powdery raw materials in an extraction kettle; under conditions of extraction temperature of 40-60 DEG C and extraction pressure 0.3-1.0 Mpa, compressing an extraction agent into liquid, enabling the liquid to flow through the extraction kettle at a flow rate of 100-150 L / h for continuous extraction of 30-110 min, and after decapterus maruadsi oil is extracted, enabling the liquid to enter an analysis kettle with analysis temperature of 50-80 DEG C and analysis pressure of 0.1-0.4 Mpa; performing phase transition on the extraction agent to form gas, immediately compressing the gas into liquid, enabling the liquid to flow through the extraction kettle, extracting materials again, enabling the materials to carry oil to enter an analysis tank through a solvent of an extraction tank, and obtaining a decapterus maruadsi oil product after analysis.Compared with conventional extraction methods, the method is accurate and stable in process, the decapterus maruadsi oil is high in quality, extraction rate is increased remarkably, and efficient extraction of ocean low-value decapterus maruadsi oil is realized, so that cost can be saved, product yield can be increased, and economic benefit of production enterprises can be improved.

A multi-layered face mask coated with discontinuous patterns of phase change material are incorporated into the face mask construction to provide for cooling of the microclimate in the dead space of the face mask. Optimized cooling is achieved by strategic placement of layers coated with a phase change material within the mask construction and the amount and density of the phase change material in contact with the temperature sensitive areas of the face, as well as areas experiencing the maximum amount of flux from exhaled breath. The shape of the mask can also be adjusted to increase skin contact with the phase change material and decrease dead space volume, which reduces the volume of warm exhaled air and can provide sufficient cooling with less phase change material. The discontinuous patterns of phase change material also provide inter-layer spacing between the layers of the mask, which can improve splash resistance.

The invention discloses a method for extracting bergamot fruit essential oil through continuous phase transition at a low temperature. The method comprises the following steps: crushing bergamot fruits until the granularity is 10-30 meshes, drying the granular bergamot fruits until the moisture content is smaller than or equal to 13%, and using the obtained bergamot fruit powder as a raw material to extract the bergamot fruit essential oil through continuous phase transition at the low temperature, wherein the technology conditions include that the extraction temperature is 50-65 DEG C; the extraction pressure is 0.4-0.7MPa; the resolving temperature of a resolving pot is 55 DEG C and the pressure is 0.25MPa; the whole extraction time is 45-90 minutes; and the bulk density of the raw material of the bergamot fruit powder directly put in the extraction pot is 0.3-0.5 kg / L. The method disclosed by the invention summarizes technology conditions for extraction of the bergamot fruits through the continuous phase transition at the low temperature; in the whole extraction process, a high temperature does not exist so that active substances are not damaged, and hazardous substances such as polymers cannot be generated; the operation is convenient and safe; the method is environmental-friendly; and the method is quite suitable for continuous large-scale industrial production.

The invention provides a method for extracting fructus perillae oil through continuous phase transition, which comprises the steps of putting the dried ground fructus perillae raw material into an extraction kettle; compressing an extraction agent into liquid under the conditions that the extraction temperature is 35-55 DEG C and the extraction pressure is 0.5-2MPa; enabling the liquid to flow through the extraction kettle at a flow speed of 100-150L / h, and continuously extracting for 50-120 minutes; after extracting the fructus perillae oil, enabling the fructus perillae oil to flow into a resolving kettle, wherein the resolving temperature is 65-75 DEG C, and the resolving pressure is 0.1-0.4MPa; heating and reducing pressure of the extraction agent so that the extraction agent phase is changed into gas; performing intermediate compression to change the gas into liquid which flows through the extraction kettle again, and performing secondary extraction on the material; circulating for multiple times. The method provided by the invention has the advantages of efficient supercritical extraction, no solvent residue in product and high retention rate of aroma components; moreover, the extraction pressure and the resolving pressure are lower than the supercritical values, and the method also has the characteristics of large extraction volume of conventional solvent, large batch treatment capacity, low production cost and the like.

The invention provides a method for continuous phase transition extraction of Tilapia mossambica skin oil. The continuous phase transition extraction technology is adopted; according to the extractionconditions, an extraction agent is butane, the solid-liquid ratio is 10 g: 30-75 ml, the extraction temperature is 60-100 DEG C, the extraction pressure is 0.1-1 Mpa, the flow rate of the extractionagent is 200-350 L / h, continuous extraction is performed for 130-200 min, the analysis temperature is 50-60 DEG C, and the analysis pressure is 0-0.1 Mpa. The method has the advantages that extractionis efficient, the product has no solvent residue, and the aroma component retention ratio is high; the extraction pressure and the analysis pressure are lower than supercritical values, and meanwhilethe method has the advantages that the conventional solvent extraction volume is large, the batch handling capacity is large, and the production cost is low; the obtain Tilapia mossambica skin oil isorange yellow, strong in aroma, light in fishy smell, and the functional component DHA content can reach 50% or above.

The invention relates to an LED (Light Emitting Diode) horizontal fluid dissipating COB (Chip-On-Board) light source and a packaging process thereof. The COB light source comprises a microarray heat pipe flat plate, a copper plating layer, a silver plating layer, a line layer, an insulation paint layer, a chip and silica gel, wherein the microarray heat pipe flat plate, the copper plating layer, the silver plating layer, the line layer and the insulation paint layer are sequentially compounded; the external surface of the chip is fixed by the silica gel in a sealing manner; the chip is tightly adhered to the silver plating layer and is fixed by welding; the appearance of the microarray heat pipe flat plate is laminated; the microarray heat pipe flat plate is subjected to cold-drawn by using an aluminum product to be integrally formed; a plurality of microarray channels which are operated independently are distributed in parallel inside the microarray heat pipe flat plate; the microarray channels are filled with a working medium; two ends of each microarray channel filled with the working medium are sealed. After the surface of the microarray heat pipe flat plate absorbs heat, the working medium in the microarray channels evaporates, heat is quickly transferred to a condensation section and then is released, and then the working medium returns to an evaporation section to continuously absorb heat, thus a series of continuous phase transition heat and mass transfer processes are repeated.

The invention belongs to the field of oil extraction, and provides a method for extracting oil from diatom by a low-temperature continuous phase transition technique and by using ethanol as an extraction agent. The method comprises the specific steps of loading diatom dry powder or diatom ooze to an extraction kettle, under the condition that the pressure is lower than the critical pressure of the extraction agent and the temperature is lower than the critical temperature of the extraction agent, enabling the extraction agent namely the ethanol which is compressed into liquid to pass through the extraction kettle at a certain flow rate in a countercurrent manner for extraction, after extraction is completed, enabling the extraction agent namely the ethanol to enter a separation kettle, performing heating and performing decompressing so that the ethanol is turned into gas, and an extract is released. The ethanol gas is compressed into liquid, then the liquid enters the extraction kettle for extraction, and circulation is performed. The method disclosed by the invention has the advantages of being low in extraction and separation pressure and extraction and separation temperature, large in treating capacity, low in cost, and high in extraction rate, and products are free from solvent residues.

The invention discloses a method for extracting ganoderma triterpenes by continuous phase transition and the ganoderma triterpenes. The method for extracting the ganoderma triterpenes by continuous phase transition includes the steps: slicing, crushing and then drying blocky lucid ganoderma until water content is lower than or equal to 15% to obtain lucid ganoderma powder, and extracting polysaccharides by continuous phase transition to obtain lucid ganoderma residues; taking ethanol water solution as an extraction agent after drying, enabling the extraction agent to flow through an extractionkettle at the flow speed of 20-100L / h under the conditions of the extraction temperature of 60-90 DEG C, the pressure of 0.02-0.25MPa and the ethanol concentration of 50%-95%, and performing continuous extraction for 120-300 minutes. Analysis temperature is 50-75 DEG C, and analysis pressure ranges from -0.10MPa to 0.10MPa. Compared with a traditional Soxhlet extraction method, the method has theadvantages that the extraction rate of the ganoderma triterpenes is increased by 10%-30%, extraction time is shortened by 40%-60%, the method is high in extraction rate, strong in operability, environmentally friendly and suitable for industrial production, and energy is saved.

The invention provides a method for extracting hesperidin and pectin in young citrus fruits through continuous phase transition. Dried and smashed young citrus fruit raw materials are subjected to continuous phase transition extraction with ethanol or methanol, wherein extraction conditions are as follows: the extracting agent velocity is 30-150 L / h, extractive temperature is 30-90 DEG C, the extraction pressure is 0.2-1.8 Mpa, extraction time is 2-24 h, separating temperature is 40-95 DEG C, the separating pressure is 0.1-1.5 Mpa; then, the young citrus fruit raw materials for hesperidin extraction is subjected to continuous phase transition extraction with tertiary water with pH 2-7, wherein extraction conditions are as follows: the extracting agent velocity is 30-120 L / h, extractive temperature is 50-95 DEG C, the extraction pressure is 0.1-1.6 Mpa, extraction time is 1-10 h, separating temperature is 55-90 DEG C, the separating pressure is 0.1-1.2 Mpa. The method is high in extraction rate, strong in continuous operability, simple and convenient to carry out, safe, friendly to the environment, low in cost and suitable for large-scale industrial production.

A multifunctional continuous phase transition extraction device comprises an extraction system, an analysis system and a solvent reclaiming system, wherein the extraction system comprises a first heat exchanger (8I), a extraction tank (1); the analysis system comprises a second heat exchanger (8II) and a first analysis tank (2I), a second analysis tank (2II), a first purifying pillar (3I), and a second purifying pillar (3II); the solvent reclaiming system comprises a first condenser (4I), a second condenser (4II), a first solvent tank (5I), and a second solvent tank (5II). According to the device, two paths of extraction circuits are formed. During the whole extraction process, the phase transition process of an extracting agent is instant and continuous; the extracting agent can be subjected to continuous phase transition and can be recycled, so that target objects can be extracted to the utmost extent, and accordingly, the efficiency is very high and the solvent consumption is small. Moreover, the whole process is performed in a sealed and low-pressure environment, the function is complete, and the purposes of safety and reliability are achieved. Therefore, the device is suitable for extraction of most natural products.

A multifunctional continuous phase transition extraction apparatus comprises an extraction system, a desorption system and a solvent recovery system. The extraction system comprises a first heat exchanger and an extraction tank. The desorption system comprises a second heat exchanger, a first desorption tank, a second desorption tank, a first purification column and a second purification column. The solvent recovery system comprises a first condenser, a second condenser, a first solvent tank and a second solvent tank. Two extraction loops can be formed in the present invention. During the overall extraction process, the phase transition process of the extracting agent is real-time and continuous. The extracting agent goes through continuous phase-transitions and is cyclically re-used. The overall process is operated in an airtight and low-pressure condition, and is multifunctional, safe, reliable, and suitable for the extraction for most natural products.

The invention provides a method for extracting fructus perillae oil through continuous phase transition, which comprises the steps of putting the dried ground fructus perillae raw material into an extraction kettle; compressing an extraction agent into liquid under the conditions that the extraction temperature is 35-55 DEG C and the extraction pressure is 0.5-2MPa; enabling the liquid to flow through the extraction kettle at a flow speed of 100-150L / h, and continuously extracting for 50-120 minutes; after extracting the fructus perillae oil, enabling the fructus perillae oil to flow into a resolving kettle, wherein the resolving temperature is 65-75 DEG C, and the resolving pressure is 0.1-0.4MPa; heating and reducing pressure of the extraction agent so that the extraction agent phase is changed into gas; performing intermediate compression to change the gas into liquid which flows through the extraction kettle again, and performing secondary extraction on the material; circulating for multiple times. The method provided by the invention has the advantages of efficient supercritical extraction, no solvent residue in product and high retention rate of aroma components; moreover, the extraction pressure and the resolving pressure are lower than the supercritical values, and the method also has the characteristics of large extraction volume of conventional solvent, large batch treatment capacity, low production cost and the like.

The invention provides a natural pigment color fixative and a preparation method thereof. The preparation method comprises the following steps: performing water extraction, concentration, extraction, column separation, crystallization and recrystallization on a rosemary raw material to obtain high-purity rosmarinic acid with the content of 95-98%; and performing alcohol extraction, concentration, centrifugation, continuous phase transition extraction, crystallization, recrystallization and drying on the rosemary raw material subjected to water extraction to obtain high-purity carnosic acid with the content of 95-98%, and performing diluting and compounding to obtain a carnosic acid preparation. The rosmarinic acid and the carnosic acid prepared by the method provided by the invention can be used as a color fixative for water-soluble pigments and lipid-soluble pigments, and compared with low-content rosmarinic acid, low-content carnosic acid and a chemically synthesized natural pigment color fixative, the rosmarinic acid and the carnosic acid have the advantages of being low in impurity content, light in taste and color, more outstanding in color protection effect, safer in application process, greater in application significance and wider in application range.

The invention provides a method for continuously extracting pomelo fruit essential oil and naringin through continuous phase transition. The method comprises the following steps: extracting a pomelo fruit raw material after drying and smashing in conditions that an extracting temperature is 30-90 DEG C, a pressure is 0.3-1.8 Mpa, an extraction agent flow rate is 40-180 L / h, extraction time is 30-240 minutes, a separate temperature is 40-90 DEG C, and a separate pressure is 0.1-0.8 Mpa, to obtain the pomelo fruit essential oil through the continuous phase transition, and extracting the naringinin the conditions that the extracting temperature is 30-95 DEG C, the pressure is 0.1-1.5 Mpa, the extraction agent flow rate is 20-150 L / h, the extraction time is 2-18 hours, the separate temperature is 40-90 DEG C, and the separate pressure is 0.1-1 Mpa. The method is capable of extracting by using a continuous phase transition technology, high in extraction purity, safe, environmentally friendly, low in cost, and suitable for large-scale industrialized production.

The invention provides a method for continuously extracting pomelo fruit essential oil and naringin through continuous phase transition. The method comprises the following steps: extracting a pomelo fruit raw material after drying and smashing in conditions that an extracting temperature is 30-90 DEG C, a pressure is 0.3-1.8 Mpa, an extraction agent flow rate is 40-180 L / h, extraction time is 30-240 minutes, a separate temperature is 40-90 DEG C, and a separate pressure is 0.1-0.8 Mpa, to obtain the pomelo fruit essential oil through the continuous phase transition, and extracting the naringinin the conditions that the extracting temperature is 30-95 DEG C, the pressure is 0.1-1.5 Mpa, the extraction agent flow rate is 20-150 L / h, the extraction time is 2-18 hours, the separate temperature is 40-90 DEG C, and the separate pressure is 0.1-1 Mpa. The method is capable of extracting by using a continuous phase transition technology, high in extraction purity, safe, environmentally friendly, low in cost, and suitable for large-scale industrialized production.

The invention discloses a method for the continuous phase transition of a multiphase system in an inorganic powder prepared by a hydrothermal method, which is to mix a solid phase and a liquid phase into a slurry, and use a pump to send the slurry into a high-pressure container at high pressure; The container is heated, part of the liquid phase changes into a gas phase, and the solid phase changes into a new solid phase; the reaction product is continuously discharged from the high-pressure container through the pressure lock device into the decompression chamber, and the liquid phase is transformed into a gas phase in the decompression chamber. Through the centrifuge, the gas-solid is separated to obtain a solid product, and the gas is condensed into a liquid phase and reused. This method is mainly used for the continuous preparation of inorganic powders, such as hemihydrate gypsum and nano iron oxide powders, by hydrothermal method.

The present invention discloses a high-pressure-oriented phase change state detection device. The device is composed of a light source bin, a material bin, and a photoelectric detection and temperature control unit. When working, the device is arranged in a pressure-regulating container; external pressure is transmitted to a material to be tested in the material bin through a soft bag; temperatureinside the material bin is adjusted by an internal temperature control unit; when the device is working, the light source generates parallel light which vertically illuminates the material to be tested in the material bin; the light transmittances of the material under different pressures and temperatures are measured through a photoelectric detecting unit; and light transmittance signal data areanalyzed and processed, so that the continuous phase transition state of the material under the different pressures and temperatures can be obtained. The device provides effective data support for the selection of phase change buoyancy materials.

A multifunctional continuous phase transition extraction apparatus comprises an extraction system, a desorption system and a solvent recovery system. The extraction system comprises a first heat exchanger and an extraction tank. The desorption system comprises a second heat exchanger, a first desorption tank, a second desorption tank, a first purification column and a second purification column. The solvent recovery system comprises a first condenser, a second condenser, a first solvent tank and a second solvent tank. Two extraction loops can be formed in the present invention. During the overall extraction process, the phase transition process of the extracting agent is real-time and continuous. The extracting agent goes through continuous phase-transitions and is cyclically re-used. The overall process is operated in an airtight and low-pressure condition, and is multifunctional, safe, reliable, and suitable for the extraction for most natural products.

The invention relates to an LED (Light Emitting Diode) horizontal fluid dissipating COB (Chip-On-Board) light source and a packaging process thereof. The COB light source comprises a microarray heat pipe flat plate, a copper plating layer, a silver plating layer, a line layer, an insulation paint layer, a chip and silica gel, wherein the microarray heat pipe flat plate, the copper plating layer, the silver plating layer, the line layer and the insulation paint layer are sequentially compounded; the external surface of the chip is fixed by the silica gel in a sealing manner; the chip is tightly adhered to the silver plating layer and is fixed by welding; the appearance of the microarray heat pipe flat plate is laminated; the microarray heat pipe flat plate is subjected to cold-drawn by using an aluminum product to be integrally formed; a plurality of microarray channels which are operated independently are distributed in parallel inside the microarray heat pipe flat plate; the microarray channels are filled with a working medium; two ends of each microarray channel filled with the working medium are sealed. After the surface of the microarray heat pipe flat plate absorbs heat, the working medium in the microarray channels evaporates, heat is quickly transferred to a condensation section and then is released, and then the working medium returns to an evaporation section to continuously absorb heat, thus a series of continuous phase transition heat and mass transfer processes are repeated.

The invention discloses a continuous phase BPSK modulation device, which includes a data change detector, a frequency selector, a carrier phase control word generator, an additional accumulation phase control word generator, a gating device, a phase control word calculator, and a phase control word generator. accumulator and ROM lookup table. The invention also discloses a continuous phase BPSK modulation method. The modulation device of the invention has a simple structure and is easy to realize. The continuous phase BPSK modulation method of the present invention uses the transition waveform that is continuous in phase with the previous data waveform to smoothly transition to the modulation waveform of the current data, thereby realizing the continuity of the modulation waveform and eliminating the gaps in the modulation waveforms of data sent before and after adjacent clocks. Phase jump, thereby eliminating the impulse response caused by phase mutation, concealing the symbol rate information contained in the waveform signal, and increasing the security and confidentiality of communication.

The invention discloses a method of extracting decapterus maruadsi oil through low-temperature continuous phase transition and decapterus maruadsi oil.The method includes: placing decapterus maruadsi powdery raw materials in an extraction kettle; under conditions of extraction temperature of 40-60 DEG C and extraction pressure 0.3-1.0 Mpa, compressing an extraction agent into liquid, enabling the liquid to flow through the extraction kettle at a flow rate of 100-150 L / h for continuous extraction of 30-110 min, and after decapterus maruadsi oil is extracted, enabling the liquid to enter an analysis kettle with analysis temperature of 50-80 DEG C and analysis pressure of 0.1-0.4 Mpa; performing phase transition on the extraction agent to form gas, immediately compressing the gas into liquid, enabling the liquid to flow through the extraction kettle, extracting materials again, enabling the materials to carry oil to enter an analysis tank through a solvent of an extraction tank, and obtaining a decapterus maruadsi oil product after analysis.Compared with conventional extraction methods, the method is accurate and stable in process, the decapterus maruadsi oil is high in quality, extraction rate is increased remarkably, and efficient extraction of ocean low-value decapterus maruadsi oil is realized, so that cost can be saved, product yield can be increased, and economic benefit of production enterprises can be improved.

The invention provides a continuous phase transition extraction removal method for agglutinin from castor seed meal. The method comprises the following steps of feeding a castor seed meal raw material in an extraction kettle, causing the castor seed meal raw material to flow through the extraction kettle at flow velocity of 120 L / h to 180L / h to be continuously extracted for 50 to 130min at extraction temperature of 60 to 95 DEG C under extraction pressure of 0 to 0.9Mpa, causing the castor seed meal to flow into a resolution kettle after the castor seed meal is extracted, performing resolution at resolution temperature of 65 to 95 DEG C under resolution pressure of -0.095 to -0.07Mpa, performing heating and pressure reduction on an extracting agent to realize the phase transition of the extracting agent into gas, performing instant cooling to realize the phase transition of the gas into liquid, causing the liquid to flow through the extraction kettle, detoxifying the material, and repeating the operation for many times, wherein the extracting agent is 75 to 100 percent methanol or 80 to 95 percent ethanol. Compared with a conventional detoxification process, the continuous phase transition extraction method has the advantages of high detoxification efficiency, few solvent residues and short time, and also has the characteristics of large conventional solvent extraction volume, high batch processing capacity, low production cost and the like.

The invention provides a continuous phase transition extraction removal method for agglutinin from castor seed meal. The method comprises the following steps of feeding a castor seed meal raw material in an extraction kettle, causing the castor seed meal raw material to flow through the extraction kettle at flow velocity of 120 L / h to 180L / h to be continuously extracted for 50 to 130min at extraction temperature of 60 to 95 DEG C under extraction pressure of 0 to 0.9Mpa, causing the castor seed meal to flow into a resolution kettle after the castor seed meal is extracted, performing resolution at resolution temperature of 65 to 95 DEG C under resolution pressure of -0.095 to -0.07Mpa, performing heating and pressure reduction on an extracting agent to realize the phase transition of the extracting agent into gas, performing instant cooling to realize the phase transition of the gas into liquid, causing the liquid to flow through the extraction kettle, detoxifying the material, and repeating the operation for many times, wherein the extracting agent is 75 to 100 percent methanol or 80 to 95 percent ethanol. Compared with a conventional detoxification process, the continuous phase transition extraction method has the advantages of high detoxification efficiency, few solvent residues and short time, and also has the characteristics of large conventional solvent extraction volume, high batch processing capacity, low production cost and the like.

The invention discloses a lead-free piezoelectric ceramic material with a high transduction coefficient and a preparation method thereof, and belongs to the technical field of lead-free piezoelectric ceramics. CaTiO3 is used as a phase structure conditioning agent to be introduced into a binary ferroelectric system BaZrO3-BaTiO3, and a lead-free solid solution with trigonal-orthogonal-tetragonal-cubic continuous phase transition is obtained. The lead-free solid solution ceramic with the trigonal-orthogonal coexisting phase has the characteristics of high piezoelectric constant and low dielectric constant, and has an important prospect in the application field of lead-free piezoelectric ceramic energy collectors.

The invention discloses a device for detecting phase transition of materials under high pressure. The device consists of three parts: light source bin, material bin, photoelectric detection and temperature control unit. When the device is working, it is placed in a pressure regulating container, and the external pressure is transmitted to the material to be tested in the material bin through the soft bag. The temperature in the material bin is regulated by the internal temperature control unit. When the device is working, the light source produces parallel light rays, which illuminate the material to be tested in the material bin vertically, and the light transmittance of the material under different pressures and temperatures is measured by the photoelectric detection unit. The data analysis and processing of the light transmittance signal can obtain the continuous phase transition state of the material under different pressures and temperatures. The device provides effective data support for the selection of phase-change buoyancy materials.

The invention discloses a continuous phase-change heat sink thermal control unit, and aims at providing a thermal control unit for a phase-change material, which is simple in principle and low in implementation cost. The continuous phase-change heat sink thermal control unit is achieved through the technical scheme as follows: a conical spring for supporting a pre-tightening pressure plate is arranged at the bottom end of a closed cavity of a closed shell; the phase-change material is arranged between a thermal diffusion plate and the pre-tightening pressure plate; the phase-change material is closely pressed on the thermal diffusion plate by pre-tightening force of the conical spring; a heat source is transferred to the phase-change material for phase change through the thermal diffusion plate in the phase change process; the phase-change material on the interface of the phase-change material and the thermal diffusion plate is softened; the conical spring transfers the pre-tightening force of the spring to the interface of the phase-change material and the thermal diffusion plate through the pre-tightening pressure plate; and the softened and molten phase-change material is pushed out of the interface of the thermal diffusion plate and the phase-change material, and is eliminated to one side of the conical spring from a gap between the pre-tightening pressure plate and the closed shell, so that the phase change material is thinned under the action of the spring force of the conical spring; continuous melting phase change of continuously thinning is generated; and efficient heat transfer and energy storage are achieved.

The invention provides a method for extracting astaxanthin in haematococcus pluvialis through continuous phase transition. A continuous phase transition extraction process is adopted, liquefied petroleum gas is adopted as an extracting agent, the material-liquid ratio, namely the ratio of the haematococcus pluvialis raw material to the liquefied petroleum gas is 10 g:(80-100) ml, the extraction temperature ranges from 35 DEG C to 45 DEG C, the pressure ranges from 0.1 Mpa to 0.5 Mpa, the flow rate of the extracting agent ranges from 400 L / h to 500 L / h, the continuous extraction time ranges from 120 min to 150 min, the resolving temperature ranges from 80 DEG C to 90 DEG C, and the resolving pressure ranges from 0.1 Mpa to 0.2 Mpa. The extraction time can be shortened, the production cost of the astaxanthin is effectively reduced, the technological process is simple, high operability is achieved, the extraction efficiency is high, the content of the astaxanthin is high, and the method is environmentally friendly, free of pollution, good in completeness and repeatibility and capable of being industrially and continuously produced on a large scale.