31 results about "Membrane contactor" patented technology

This invention belongs to the field of hollow fiber membrane preparation technology, and discloses a braided tube-reinforced polyvinylidene fluoride hollow fiber hydrophobic membrane, its preparation method, and its application. The polyvinylidene fluoride hollow fiber hydrophobic membrane includes a braided tube and a hydrophobic membrane layer formed on the surface of the braided tube. The outer diameter of the braided tube-reinforced polyvinylidene fluoride hollow fiber hydrophobic membrane is 0.3-3 mm, the tensile breaking strength is greater than 100 N, and the pure water permeability is 200-7500 L / (m²). 2 •h)@0.1MPa 20℃. The preparation method includes: preparing a casting solution by combining polyvinylidene fluoride resin, organic solvent, composite pore-forming agent, and optionally polytetrafluoroethylene microparticles; extruding the casting solution onto the outer surface of a braided tube using a hollow fiber membrane spinning machine, and forming a membrane through phase separation in a coagulation bath. This invention significantly improves the mechanical strength of the membrane through braided tube reinforcement and achieves high flux and high hydrophobicity using a water-inorganic-organic composite pore-forming agent, making it suitable for high-performance separation processes such as membrane distillation, membrane contactors, and gas separation.

The invention discloses a decarburized amine solution electrodialysis desalination purification regeneration method. The decarburized amine solution electrodialysis desalination purification regeneration method comprises the following steps: pretreating a decarburized amine solution to obtain a pretreated solution; and performing electrodialysis purification treatment on the pretreatment solution. According to the decarburized amine solution electrodialysis desalination purification regeneration method, the ideas of electrodialysis and a membrane contactor assembly are combined, and decoloring purification of the decarburized amine solution and efficient recovery of amine are achieved.

The utility model belongs to the technical field of isooctyl nitrate production equipment, and discloses an isooctyl nitrate crude product alkali washing device which comprises a fiber membrane contactor and a separation tank which are communicated, the top of the fiber membrane contactor is provided with a first liquid inlet pipe used for leading in an isooctyl nitrate crude product and a second liquid inlet pipe used for leading in alkali liquor, and the first liquid inlet pipe and the second liquid inlet pipe are communicated with each other. The first liquid inlet pipe penetrates along the top of the fiber membrane contactor, a buffer mechanism is arranged below the first liquid inlet pipe, the buffer mechanism comprises a splitter plate and a buffer cavity with an opening in the top, a pipe opening of the first liquid inlet pipe is located in the buffer cavity, the buffer cavity is formed in the center of the top of the splitter plate, and through holes are evenly distributed in the splitter plate. According to the utility model, the buffer cavity is matched with the splitter plate to buffer the crude isooctyl nitrate introduced into the fibrous membrane contactor, so that the generation of foam is reduced, and the crude isooctyl nitrate is ensured to be fully deacidified.

The invention discloses a production process of an ambroxol oral solution, and belongs to the technical field of chemical medicinal preparations, the production process comprises the following steps: adding an aqueous solution containing ambroxol hydrochloride, clenbuterol hydrochloride, sorbitol, propylene glycol, glycerol, hydroxyethyl cellulose, DL-tartaric acid and sodium benzoate into a reaction kettle, and uniformly stirring to obtain the ambroxol hydrochloride oral solution, the clenbuterol hydrochloride, the sorbitol, the propylene glycol, the glycerol, the hydroxyethyl cellulose, the DL-tartaric acid and the sodium benzoate; the preparation method comprises the following steps: preparing in a production system passivated by hydroxyethyl diamine tetraacetic acid trisodium salt, treating by a two-stage series hollow membrane contactor, and finally filling a glass bottle with a liquid medicine. According to the preparation method disclosed by the invention, on the basis of prescription adjustment without adding antioxidants such as sodium pyrosulfite and the like, the impurities of the medicine in the production and storage processes are obviously reduced, the product stability and the clinical medication safety are improved, and the preparation process is simple and stable to operate and suitable for industrial production.

The invention relates to the technical field of gas separation membrane materials in a carbon capture technology, in particular to a tubular ceramic membrane surface super-hydrophobic modification method for a carbon dioxide capture membrane contactor, a hydrophobic modified membrane and a tubular ceramic membrane. The tubular ceramic membrane surface hydrophobic modification method comprises the following steps: step B, forming a SiO2 coarsening layer on the surface of a tubular ceramic membrane substrate; step C, forming a polydopamine intermediate bridging layer on the surface of the SiO2 coarsening layer; and step D, forming a polydimethylsiloxane hydrophobic layer on the polydopamine intermediate bridging layer. According to the super-hydrophobic coating disclosed by the invention, the bonding strength and durability of the super-hydrophobic coating are remarkably enhanced by the polydopamine middle layer, and the problem of weak bonding force between a functional layer and a matrix in a traditional super-hydrophobic coating is effectively solved.

The invention discloses a method and a device for purifying and recycling a propylene glycol methyl ether acetate (PGMEA) solvent. The process sequentially comprises the steps of pre-filtering, metal trapping and membrane contactor pervaporation dehydration, polishing and filtering, and then forming an observation batch in a small tank; the indexes of water, particles, total organic carbon and proxy metal are monitored on line, and release / backflow is performed based on dual-threshold gating and exponential weighted moving average; when flux or quality is abnormal, cleaning in place (CIP) is performed and a reset is verified to above 80% of the baseline. The device consists of a raw material tank, a prefilter, a metal trapping unit, a membrane contactor, a polishing filter, a small tank, a valve group and a finished product tank, and is matched with a vacuum / scavenging and condensing unit. According to the scheme, the water content is smaller than or equal to 200 ppm under fluctuating feeding, and the water content and particles / TOC reach the standard cooperatively.

The utility model discloses a device for removing volatile organic compounds in water, which can remove the volatile organic compounds in the water to below 1ppm and is lower in operation energy consumption. The device comprises a wastewater circulation pipeline; a nitrogen purging pipeline; an organic matter gathering pipeline; the treated wastewater flows out of the pipeline; and at least one group of volatile organic compound removal membrane contactors, each group of volatile organic compound removal membrane contactors comprising a contactor body, a wastewater inlet, a wastewater outlet, a purge gas inlet and a volatile organic compound outlet, waste water inlets and waste water outlets of all volatile organic compound removal membrane contactors are sequentially connected in series to form a total waste water inlet and a total waste water outlet corresponding to the waste water circulation pipeline; an inlet of the wastewater circulation pipeline is integrated with a lifting pump, and the wastewater circulation pipeline is provided with a water inlet flow meter and a plurality of security filters along the wastewater circulation direction.

Disclosed herein is a carbon dioxide capture system capable of capturing high-concentration carbon dioxide in flue gas emitted from a carbon emission source using a simple structure. The carbon dioxide capture system includes: a normal temperature membrane configured to perform primary capture of carbon dioxide in flue gas transferred from a carbon emission source generating carbon dioxide-containing flue gas; the membrane contactor is configured to perform secondary capture on carbon dioxide in residual flue gas after primary separation and carbon dioxide removal of the normal-temperature membrane, and the membrane contactor captures carbon dioxide through a mechanism different from that of the normal-temperature membrane; and a mixer configured to mix the carbon dioxide separated by the normal-temperature membrane with the carbon dioxide separated by the membrane contactor to generate high-concentration carbon dioxide.

Hollow fiber membranes, membrane contactors, and related production and use methods. The asymmetric hollow fiber membranes include a porous substrate having a multiplicity of pores and including at least one semi-crystalline thermoplastic polyolefin (co)polymer. A skin layer including at least one polydiorganosiloxane polyoxamide copolymer overlays the porous substrate. The skin layer is less porous than the porous substrate and forms an outer surface of the asymmetric hollow fiber membrane, while the porous substrate forms an inner surface of the hollow fiber membrane. The skin layer is preferably nonporous.

The present invention provides a method for the recovery of 2,3-butanediol (BDO) from an aqueous fermentation broth. The method includes directing an aqueous phase along the lumen side or the shell side of a plurality of hydrophobic hollow fibers while simultaneously directing an organic phase along the other of the lumen side or the shell side of the plurality of hollow fibers. The aqueous phase includes a fermentation broth containing BDO, water, and impurities, and the organic phase is initially composed entirely of an organic solvent, the organic solvent being immiscible in water and having an affinity for BDO. The organic solvent continuously recovers BDO from the fermentation broth, the BDO being a precursor for aviation fuels and other applications.

1. The invention relates to a membrane (1) for a membrane contactor (2), which is designed as a hollow tube structure symmetrical to a central plane (ME) consisting of branched tubes (3, 3', 3", 3'''', 3'''') with several branching planes (VE) parallel to the central plane (ME) on both sides of the central plane (ME), wherein the walls of the tube structure are material-permeable and / or energy-permeable, and wherein in region (B) of each branching plane (VE) each tube (3, 3', 3'', 3''') extending towards the central plane (ME) branches into several tubes (3', 3'', 3''', 3'''') extending towards the central plane (ME), and the tubes (3'''') extending from both sides of the central plane (ME) from the respective last branching plane (VE) to the central plane (ME) in region (ÜB) of the central plane (ME) merge into one another. The invention further relates to a membrane contactor (2) with such a membrane and a method for producing a hollow membrane (1).

The utility model discloses a water washing membrane separation device for production of isooctyl nitrate, which relates to the technical field of production of isooctyl nitrate and comprises an oil phase separator, a water phase settler and a fiber membrane contactor, the device is characterized in that the cross sections of the oil-phase separator and the water-phase settler are rectangular, distributed speed regulating mechanisms are arranged between the inner walls of the left and right opposite sides of the oil-phase separator and the water-phase settler, and channels are formed between the front and rear sides and the inner walls of the two groups of distributed speed regulating mechanisms; the oil phase separator and the water phase settler are respectively provided with a feeding pipe for feeding distilled water and isooctyl nitrate into the distribution speed regulating mechanism; the flow velocity of the isooctyl nitrate and the water is regulated by the distribution speed regulation mechanism, and the production efficiency can be improved and the production yield can be increased while the washing effect is ensured by optimizing the flow velocity; the water washing time can be shortened through the appropriate flow speed, the energy consumption and the labor cost are reduced, the overall production benefit is improved, and meanwhile it can be guaranteed that isooctyl nitrate and water can make full and even contact through the evenly-dispersed discharging mode.

The utility model discloses a device for removing hydrogen sulfide from oilfield produced water, which can reliably remove hydrogen sulfide gas dissolved in the water, is low in operation energy consumption and reduces the cost. The device comprises a water inlet pipeline; a nitrogen purging pipeline; an exhaust gas emission main pipeline; treated water flows out of the pipeline; each group of hydrogen sulfide removal membrane contactors comprises a contactor body, a water inlet, a water outlet, a purge gas inlet and a waste gas outlet, and the water inlets and the water outlets of all the hydrogen sulfide removal membrane contactors are sequentially connected in series to form a total water inlet and a total water outlet corresponding to the water inlet pipeline; a lifting pump is integrated at an inlet of the water inlet pipeline, and a water inlet flow meter and a plurality of security filters are arranged on the water inlet pipeline in the water flowing direction.

The invention relates to a membrane (1) for a membrane contactor (2), which membrane is in the form of a hollow three-dimensional tube structure located on both sides of a plane / central plane (ME), in particular a hollow tube structure which is mirror-symmetrical to the plane / central plane and consists of branched tubes (3, 3´, 3´´, 3´´´, 3´´´´), preferably not exclusively planar branched tubes (3, 3´, 3´´, 3´´´, 3´´´´) having a plurality of branching planes (VE) in parallel with the plane / central plane (ME) on both sides of the plane / central plane (ME), wherein the walls of the tube structure are permeable to substances and / or permeable to energy, and wherein, in the region (B) of each branching plane (VE), each tube (3, 3´, 3´´, 3´´´) extending towards the plane / central plane (ME) branches into a plurality of tubes (3´, 3´´, 3´´´, 3´´´´) extending with respect to the plane / central plane (ME), and the tubes (3´´´´) extending from both sides of the plane / central plane (ME) from the corresponding last branching plane (VE) with respect to the plane / central plane (ME) merge into one another in the region (ÜB) of the plane / central plane (ME). The invention also relates to a membrane contactor (2) having a membrane of this type, and to a method for producing a hollow membrane (1).

The utility model discloses a biogas slurry fertilizer making device based on double-membrane coupling. The device comprises a preheating unit, a feeding side membrane contactor, an absorption side membrane contactor, a gas circulation pipeline, a negative pressure gas pump and a rear end crystallization fertilizer making system. Hydrophobic microporous membrane components are respectively arranged in the feeding side membrane contactor and the absorption side membrane contactor; the gas circulation pipeline is communicated with the gas cavities on the two sides to form a closed loop, and gas circulation is driven by the negative pressure gas pump. And the rear-end crystallization fertilizer preparation system is communicated with the acid liquid cavity of the absorption side membrane contactor and is used for preparing the extracted nutrients into a solid fertilizer. According to the utility model, the closed circulating air flow is used as an intermediate medium, so that the direct contact between the biogas slurry and the acid absorbent is thoroughly avoided, the efficient separation of high-concentration ammonia nitrogen in the biogas slurry and the conversion of high-added-value fertilizer are realized on the premise of not additionally adding chemicals to adjust the pH value, and the system has excellent thermodynamic energy efficiency and energy self-sufficiency characteristic.

A semi-integrated method for production of p-hydroxycinnamic acids comprises a first step of enzymatic hydrolysis and a second step of purification of the p-hydroxycinnamic acids, thus released, by liquid / liquid extraction using a membrane contactor. This method enables the purification of p-hydroxycinnamic acids from a plant biomass and the recovery thereof in the organic phase. It is conceivable to recover the p-hydroxycinnamic acids in the aqueous phase after a back-extraction step.

An air conditioner includes an air flow path configured to direct an air flow in a direction. The air conditioner also includes an evaporative cooling membrane panel disposed within the air flow path and including a face disposed at an oblique angle relative to the direction. The face is defined by microporous fibers of the evaporative cooling membrane panel. Each microporous fiber is configured to receive liquid in a fluid flow path of the microporous fiber such that the air flow over the microporous fiber generates a vapor. Each microporous fiber is also configured to release the vapor into the air flow via pores of the microporous fiber.

The application discloses an asymmetric structure polytetrafluoroethylene hollow fiber membrane and a preparation method and application thereof, relates to the field of membrane separation technology, and aims to solve the problem that the existing polytetrafluoroethylene hollow fiber membrane is difficult to consider high porosity and small pore diameter. The membrane is asymmetric in the cross-section direction, the average pore diameter of the outer surface is smaller than that of the main body and the inner surface, and the preparation method comprises the steps of mixing, extruding, degreasing, stretching, sintering and asymmetric heat treatment. The core innovation lies in that a dense layer is formed on the outer surface of the membrane through the asymmetric heat treatment process, compared with the fluorine coating method and the wrapping method, no additional materials and complex processes are needed, and the method is easy to scale up. The polytetrafluoroethylene hollow fiber membrane prepared by the application has the characteristics of high porosity and high liquid penetration pressure, the smaller pore structure of the outer surface endows the membrane with better wet resistance, and the high porosity of the main body makes the membrane have lower mass transfer resistance, and the membrane is suitable for a membrane contactor process with liquid in the shell.

The utility model discloses a system for removing carbonate radicals from wastewater and preparing pure carbon dioxide gas, which has the advantages that the operation energy consumption is reduced, the treated carbon dioxide can be directly utilized, and the greenhouse effect is reduced. The acid adding reaction storage tank comprises a tank body, an acid flow inlet, a wastewater inlet and a wastewater flow outlet; a lifting pump is integrated at an inlet of the wastewater circulation pipeline, and a plurality of security filters are arranged on the wastewater circulation pipeline in the wastewater circulation direction; the decarburization membrane contactor comprises a contactor body, a wastewater inlet, a wastewater outlet, a purging liquid inlet and a purging liquid outlet, the alcohol amine circulating tank comprises a top outlet, a top reflux inlet, a bottom flow inlet and a bottom discharge port; an alcohol amine collecting tank; and the desorption tower comprises a bottom mixing inlet, a top gas outlet and a liquid outlet on one side of the upper part.

The present invention provides a method for the recovery of 2,3-butanediol (BDO) from an aqueous fermentation broth. The method includes directing an aqueous phase along the lumen side or the shell side of a plurality of hydrophobic hollow fibers while simultaneously directing an organic phase along the other of the lumen side or the shell side of the plurality of hollow fibers. The aqueous phase includes a fermentation broth containing BDO, water, and impurities, and the organic phase is initially composed entirely of an organic solvent, the organic solvent being immiscible in water and having an affinity for BDO. The organic solvent continuously recovers BDO from the fermentation broth, the BDO being a precursor for aviation fuels and other applications.

Provided are a surface-modified membrane, a surface-modified membrane manufacturing method for manufacturing same, and a membrane contactor comprising same, the surface-modified membrane comprising: a porous membrane comprising a polymer; a highly oxidized graphene oxide supported on at least a portion of the surface of the porous membrane and having an oxygen content of 40-60 wt%; and a surface-modified layer formed on at least a portion of the surface of the highly oxidized graphene oxide and comprising fluorine-containing silane.

Methods for processing pretreated phosphogypsum wastewater are disclosed. Precipitation of select constituents may be promoted to control a hardness level of the pretreated wastewater. Ammonia may then be removed from the process stream via reverse osmosis. A membrane contactor and / or polishing unit(s) may optionally be used. Related systems are also disclosed.

The invention discloses a mixed acid recycling and regenerating and selective arsenic removal method and system, and belongs to the field of wet process chemical recycling and regenerating treatment. The system sequentially comprises a diffusion dialysis module, an electrodialysis module, a membrane contactor removal and resorption module and a transmembrane oxidation-complexing arsenic removal module along the technological process, and is provided with a bypass reflux valve group, a release port, an online sensor, a controller, a human-computer interface and a safety interlock. The membrane contactor operates under the condition of relative vacuum degree or inert replacement, is circularly communicated with the resorption liquid and is used for removing and absorbing volatile acidic components; and the transmembrane oxidation-complexing arsenic removal module is used for converting and selectively trapping arsenic. The controller performs release judgment based on online calibration results of conductivity, density and temperature, releases and generates a record when the standard is reached, and switches bypass backflow and executes in-situ cleaning when the standard is not reached; safety interlocking is used for exception handling and process tracing.

The utility model discloses a gas condensate desulfurization and rectification device which comprises a fiber liquid film contactor, a rectification tower, a first cooler and a heater, the fiber liquid film contactor comprises a liquid film contactor shell used for containing the condensate oil for oxidative desulfurization reaction under the alkaline condition and a separation tank used for three-phase separation of a gas phase, a condensate oil phase and an alkaline solution phase, and the liquid film contactor shell is communicated with the separation tank; the rectifying tower is communicated with a condensate oil phase outlet of the separating tank, a light component branch pipeline is arranged at the top of the rectifying tower, and a heavy component branch pipeline is arranged at the bottom of the rectifying tower; the feeding end and the discharging end of the first cooler are communicated with the upper part of the rectifying tower; the heater is used for heating condensate oil at the lower part of the inner cavity of the rectifying tower. According to the utility model, the temperatures of the upper part and the lower part of the rectifying tower are different, the condensate oil is cut into light components and heavy components, and the generated disulfide and the original high-boiling-point sulfide in the condensate oil enter the heavy components due to high boiling point, so that the aims of desulfurizing the light components and deodorizing the heavy components of the condensate oil can be fulfilled.

The invention discloses a membrane absorption device and method for removing H2S in natural gas to a liquefiable standard. The membrane absorption device comprises a natural gas control mechanism, a membrane absorption assembly, an absorption liquid storage tank and an absorption liquid control mechanism, the absorption liquid storage tank is communicated with the shell pass of the membrane absorption assembly to form a loop; the natural gas control mechanism comprises a natural gas flow sensor, a first pneumatic control valve, a natural gas pressure sensor and a second pneumatic control valve; the absorption liquid control mechanism comprises an absorption liquid flow sensor, a third pneumatic control valve, an absorption liquid pressure sensor and a fourth pneumatic control valve; h2S in the natural gas is removed by regulating and controlling the flow and pressure of the natural gas and the absorption liquid entering the system. Based on coupling of the membrane contactor and chemical absorption, the gas-liquid phase flow can be independently controlled, the operation flexibility is large, the device is not sensitive to fluctuation working conditions such as flow and concentration, and efficient and stable removal of H2S can still be achieved in severe environments such as an offshore natural gas treatment platform where continuous swing exists.

The invention relates to membrane system engineering for recycling wet electronic chemicals, and provides a purification and recycling platform for a PGMEA (propylene glycol methyl ether acetate) solvent. The platform is sequentially provided with pretreatment, contact and phase separation, selective membrane separation, a membrane contactor and polishing filtration, and a three-way valve and a small tank are connected in parallel at the near discharge end to form a backflow branch; and arranging an online sensor at the key section, and implementing gating by a controller according to a process threshold value and a release threshold value: when the process threshold value is exceeded, switching to a small tank for isolating backflow and linking two-section type in-situ cleaning, and when the release threshold value is met, releasing and generating a tracing record with a timestamp. According to the scheme, moisture, particles, TOC and dissolved gas are cooperatively controlled on the premise that membrane materials are not limited, the probability that abnormal batches enter a finished product section is reduced, the reset time is shortened, and the one-time release stability and traceability are improved.

The invention relates to a process for recovering fatty acids and / or nutrients from a feed using a system comprising an electrodialysis bipolar membrane (EDBPM) system, an electrodialysis system (ED) system, and a membrane contactor (MC). The process utilizes an EDBPM system to generate an acidic flow and an alkaline flow. The acidic flow is pumped directly to the feed side of the MC. The ED system is utilized to isolate the hydroxide ions generated by the bipolar membrane of the EDBPM system. The isolated OH- stream is pumped directly to the permeate side of the MC. The invention further relates to a system for recovering fatty acids and / or nutrients from a feed.

The invention relates to the technical field of vitamin H production, and discloses an extraction and purification method of vitamin H. According to the method, mild cell lysis and pre-clarification are carried out by integrating pulsed electric field assisted enzymolysis and cross-flow membrane clarification, and micro-fluidic targeted pre-transformation is introduced to remove specific impurities on line. Then, a dynamic response intelligent membrane contactor is combined with a CO2-switchable hydrophobic solvent for high-selectivity reaction extraction, and enrichment of the vitamin H is achieved. Furthermore, desalination and pH adjustment of the vitamin H solution are realized through CO2-triggered reversed-phase release and bipolar membrane electrodialysis, and finally, high-purity crystals are obtained by continuous crystallization of CO2-expansion liquid. The whole process is monitored in real time and dynamically regulated and controlled by an artificial intelligence system, and efficient recycling of CO2 and SHS is achieved. The method provided by the invention realizes high-efficiency and high-selectivity extraction and purification of vitamin H, and has the characteristics of high yield, high purity, low energy consumption, low emission and rapid and continuous production.

The utility model provides a fluid path system of a flow cytometer, which comprises a fluid inlet pipeline, a positive pressure fluid supply pipeline and an analysis pipeline, the fluid inlet pipeline comprises a sheath fluid barrel, a fluid inlet diaphragm pump, a damper and a sheath fluid pool which are connected in sequence, the sheath fluid pool is provided with a sheath fluid exhaust hole, a lower liquid level sensor is arranged in the sheath fluid pool, and the lower liquid level sensor is connected with the positive pressure fluid supply pipeline. The signal change generated when the lower liquid level sensor detects the liquid level is used for controlling the flow speed of the liquid inlet diaphragm pump; the positive pressure liquid supply pipeline comprises an air filter, an air pump and a proportional valve which are connected in sequence, the analysis pipeline comprises a liquid filter, a membrane contactor and a flow chamber which are connected in sequence, and the flow sensor is located on a channel where the membrane contactor is connected with the flow chamber; according to the sheath fluid flow speed monitored by the flow sensor, the sheath fluid flow is adjusted by adjusting the opening degree of the proportional valve, and sheath fluid fluctuation and flow speed periodic changes of the flow chamber are reduced.

The utility model discloses a fiber liquid film contactor which comprises a liquid film contactor shell and a separation tank, the liquid film contactor shell is internally provided with liquid film cellosilk used for being in contact with two-phase substances; a separation cavity, a phase separation assembly and a phase separation cavity are sequentially arranged in the separation tank in the flowing direction of fluid, the separation tank is arranged below the liquid film contactor shell, and the liquid film contactor shell is communicated with the separation cavity; the phase-splitting assembly comprises a distribution pore plate, a flow guide plate and a mixed-weaving silk screen coalescence piece which are sequentially arranged in the flowing direction of fluid, and the upper end and the lower end of the phase-splitting cavity sequentially communicate with the first outlet and the second outlet. According to the utility model, two-phase substances are uniformly distributed through the distribution pore plate and the flow guide plate and slowly pass through the mixed weaving silk screen coalescence piece; under the action of the mixed weaving silk screen coalescence piece, a free water phase in the oil phase and a free oil phase in the water phase are coalesced and separated, so that the two-phase separation speed is accelerated, and two-phase substances are arranged in the phase separation cavity in a layered manner.