116results about How to "Guaranteed conversion" patented technology

The embodiment of the invention provides an Internet of Things system and terminals of IOT management method in the Internet of Things, and is used for reducing the workload of erection of the Internet of Things, and increasing the richness of terminals of IOT on an Internet of Things platform. A data processing method in the Internet of Things provided by the embodiment of the invention is applied to the Internet of Things system, and the Internet of Things system comprises a transmission gateway, an application layer protocol conversion module and a management platform, and the data processing method specifically comprises the following steps: receiving service data sent by first terminal equipment by the transmission gateway, and transmitting the service data to the application layer protocol conversion module by adopting a TCP / IP transmission protocol; converting the format of the service data by the application layer protocol conversion module according to a general interaction protocol to generate target service data, wherein the management platform and the application layer protocol conversion module uniformly adopt the general interaction protocol for application layer datainteraction; and transmitting the target service data to the management platform by the application layer protocol conversion module by adopting the TCP / IP transmission protocol.

The embodiment of the invention provides a page building method and device. The method comprises the steps that metadata for building a page is obtained, the metadata is stored in a storage medium ina preset data format, and the metadata is assembled into static data according to the assembling mode of preset static data; the static data is separately stored in a database, and data operations ofthe static data stored in the database are managed through distributed transactions; dynamic data sent by a dynamic interface is received, and according to the assembling mode of a preset rendering data block, the static data and the received dynamic data are assembled into a rendering data block; a corresponding rendering mode is determined according to the acquired type of user equipment, the assembled rendered data block is assembled into a rendering data block matched with the rendering mode. By means of the method, automatic building of page data reading and writing is achieved, and the opening speed of the page in a server is greatly increased.

The invention discloses a method for continuously producing dimethyl disulfide. The method is characterized in that after being molten, a material sulfur is fed into a dimethyl trisulfide reactor by virtue of a feeding pump so as to react with recycled dimethyl disulfide to generate dimethyl trisulfide; dimethyl trisulfide and methyl mercaptan are feed into a dimethyl disulfide reactor so as to react to generate dimethyl disulfide; a dimethyl disulfide crude product is fed into a separating tank, so that most of hydrogen sulfide is separated out, a liquid-phase product is fed into a rectifying tower, a dimethyl disulfide product is condensed and recycled at a tower top, hydrogen sulfide is exhausted as a non-condensable gas, and the dimethyl disulfide and dimethyl trisulfide in a tower kettle are returned and recycled. A method of enabling dimethyl trisulfide to be excessive is adopted, so that methyl mercaptan is completely converted, separating requirements are lowered and a separating process is simplified, and therefore, not only can the dimethyl disulfide yield be improved to 90%, but also the product purity is up to 99wt%.

The invention discloses an ocean tidal current power generation system. The system comprises a supporting mechanism, an ocean tidal current power generator set and a signal monitoring mechanism. The supporting mechanism comprises a foundation pile, a horizontal supporting rod and an operating platform. The ocean tidal current power generator set comprises underwater components and an overwater component; each underwater component comprises blades, a hub, a spindle, a gearbox, a coupler, a power generator, a stern compartment and a yawing mechanism, wherein a variable propeller mechanism is arranged in the hub, and the yawing mechanism is arranged between the coupler and the horizontal supporting rod; the overwater component comprises a converter and a control cabinet, and the converter and the control cabinet are both arranged on the operating platform. The signal monitoring mechanism comprises a current meter connected with the control cabinet, and the current meter is arranged on the horizontal supporting rod and used for monitoring the ocean current direction in real time. The ocean tidal current power generation system has advantages that by adoption of the fixed ocean tidal current power generation system and the half-direct-driven wind power generator set, efficient conversion of ocean current energy into electric energy can be realized safely and reliably.

The invention relates to lactobacillus casei-containing fermented oyster powder. The preparation method comprises the following steps of: homogenating oyster and water according to a ratio, adding protease according to the ratio, uniformly stirring, hydrolyzing, performing enzyme deactivation, cooling, centrifuging, taking supernatant, adding activated carbon according to the mass percent of the enzymatic hydrolysate, keeping the temperature to be 30-40 DEG C, filtering by using kieselguhr, and obtaining clarified oyster enzymatic hydrolysate; and inoculating probiotics according to the volume percent of the enzymatic hydrolysate, fermenting at the temperature of 35-40 DEG C for 6-8 hours, fermenting at the temperature of 4 DEG C for 2-4 days, and performing freeze drying on the fermentation liquor to obtain the fermented oyster powder. According to the product production process, the modern biotechnology and freeze drying technology are adopted, and the nutritional ingredients of the oyster are totally converted in the lactic acid fermentation process, so that the fermented oyster powder contains the active ingredients such as amino acids, glycogen, taurine, zinc and selenium in the nutritional ingredients of the oyster and also contains active lactobacillus casei, and the nutrition and health care functions are guaranteed.

The invention relates to a method for producing isopropanolamine by a liquid ammonia process, mainly solving the problems such as high device investment, high energy consumption in dehydration and many by-products due to the fact that water is used as a catalyst in the prior art. The method has the advantages that anhydrous liquid ammonia and propylene oxide are used as raw materials for reaction,a tubular fixed bed reactor and an adiabatic fixed bed reactor are provided to ensure complete conversion of the propylene oxide, and the tubular fixed bed reactor removes heat of the hot water preheated reaction raw materials and reaction products under reduced pressure through heat removal of circulating hot water, so that most of reaction heat can be recycled; most of ammonia of the reaction products is recycled through a flash tank, and residual ammonia is recycled by an ammonia stripping tower with an compressor at the top; few by-products are generated, equipment investment and device energy consumption can be reduced, and the method can be applied to industrial production of the isopropanolamine.

The invention relates to a method of producing ethanolamine from liquid ammonia and mainly aims to solve the technical problems of a large amount of byproducts, low security, high investment in equipment and high energy consumption in the prior art. According to the technical scheme, ethylene oxide and fresh liquid ammonia are respectively added into a tubular fixed-bed reactor by a feeding pump, the product of reaction is added into an adiabatic fixed-bed reactor, and the tubular fixed-bed reactor and the adiabatic fixed-bed reactor are both filled with a binder-free ZSM-5 zeolite molecular sieve catalyst so as to catalyze ammoniation to generate ammonia-containing ethanolamine. By adopting the technical scheme, the problems can be well solved. The method provided by the invention can be applied to the industrial production of ethanolamine.

The invention provides a method for preparing a polyaniline-ferroferric oxide (PANI-Fe3O4) nanocomposite. The PANI-Fe3O4 nanocomposite is prepared through one step by using iron nitrate nonahydrate and aniline (AN) as raw materials and ethanol as a solvent and utilizing a solvothermal method. The method has the beneficial effects that generation of inorganic Fe3O4 and organic PANI and effective composition of the two components are achieved through one step by adopting a single iron source and an AN monomer, without adding any alkaline precipitating agent, reducing agent or catalyst and even without surface modification of a Fe3O4 material, thus preparing the real nanoscale composite PANI-Fe3O4 with strong interaction between phases; in the composition process, Fe<3+> catalyzes polymerization of the AN monomer to form PANI while AN partially reduces Fe<3+> to Fe<2+>, thus ensuring conversion from Fe<3+> to Fe3O4; PANI can achieve the effects of effectively preventing agglomeration of Fe3O4 magnetic materials and obviously improving the magnetic property of Fe3O4.

The invention relates to a control method of an ethylene carbonate synthesis process. According to the invention, ethylene carbonate is synthesized through a gas-liquid-solid three-phase reaction with carbon dioxide and ethylene oxide. The method is mainly provided for solving the problems of temperature runaway and low product purity of prior arts. According to the invention, key process control indicators of the reaction are controlled with an automatic control system. A catalyst is fixed with porous baffles in a reaction bed layer. Liquid-phase and gas-phase raw materials respectively enter from the upper part and the lower part of the reactor. Catalyst bed layer temperature rise in the reactor is controlled with outer circulation material flow, such that the bed layer temperature rise is controlled within a certain range. Product purity is controlled with secondary reactor outlet liquid phase output amount. With the technical scheme, the problems are well solved. The method can be applied in industrial productions of ethylene carbonate synthesis.

The control method relates to a control method for an ethylene carbonate synthesis process; a gas-liquid-solid three-phase reaction of carbon dioxide and ethylene oxide is preformed to generate ethylene carbonate, and the problems of easy temperature runaway and low purity of a product existing in the prior art are mainly solved. The problems are relatively well solved by adopting the technical scheme that key process control indexes of the reaction are controlled by an automatic control system, a catalyst is fixed by a porous baffle plate in a reactor bed layer, a liquid-phase raw material and a gas-phase raw material respectively enter from the upper part and the lower part of the reactor, a one-section synthesis reactor liquid level is controlled by using the output quantity of a one-section synthesis reactor outlet liquid phase, and the purity of the product is controlled by using the output quantity of a two-section synthesis reactor outlet liquid phase. The control method can be used for industrialized production of ethylene carbonate synthesis.

The invention relates to a preparation method of Daji chokedamp, and is characterized in that a preparation process comprises the following steps of: a, putting up a shed; b, harvesting; c, braiding smoke and hanging the shed; d, withering; and e, basking. The preparation method of the Daji chokedamp, provided by the invention, has the advantages that: cut leaves with stems have three advantages, that is to say, firstly, the cut leaves with the stems are convenient for braiding the smoke and drying; secondly, the residual stem tissues can be used for providing necessary nutritional ingredients for drying tobacco leaves at early periods, so that dry substances of the tobacco leaves can be normally converted in a process of hungry metabolism, the contents of the tobacco leaves and the deposits can be improved, and quality of the tobacco leaves can be improved; and thirdly, roots of tobacco strains can be stimulated to develop again, growth of bottom stubbles is promoted, two-season production is realized, and income of tobacco growers can be improved.

The invention discloses a method for high-density fermentation of selenium-enriched lactobacillus reuteri. A high-density fermentation selenium-enriched lactobacillus reuteri bacterium is obtained byusing an improved culture medium with cane sugar, the capability of a fermentation liquid of a unit volume in digesting and absorbing inorganic selenium is improved, the concentration of selenium in the fermentation liquid is controlled to be at a relatively low level through second-stage selenium replenishment, the inorganic selenium in the fermentation liquid is completely converted into organicselenium in the lactic acid bacteria in the fermentation process of the lactic acid bacteria, in addition, as the concentration of the selenium in the fermentation process is controlled, bacterial can grow without limit, a relatively high viable bacterial concentration can be achieved within 24 hours, the problem that lactic acid bacteria grow slowly as the content of the inorganic selenium in the culture medium of a conventional process is far higher that the resistance of the lactic acid bacteria is solved, and meanwhile the problem that the bacterium comprises elemental selenium is avoided. Therefore, the selenium-enriched lactobacillus reuteri fermentation liquid disclosed by the invention has the advantages of both complete organic selenium and high viable counts. In addition, a finally obtained microecological preparation has only organic selenium.

The invention discloses a falling mechanism capable of controlling time and quantity. The falling mechanism comprises an adjustable lever, a falling device and a magnetic assisting device. Through adjustment of the adjustable lever, a receiver (2) and a lever body (11) are in a receiving position and state when the receiver is not loaded with materials, a falling valve (5) is opened at the same time, and the receiver starts to receive materials; and when the gravitational moment of the received materials is larger than the resisting moment of an adjustable magnet (18), the receiver (2) descends around the fulcrum of the lever body (11), and a falling process is completed. The falling period can be adjusted by utilizing a falling control valve (6) to control the falling quantity within the unit time, and the receiving quantity of the receiver (2) can be controlled by adjusting the different resisting moments formed by the magnetic force or magnetic arm of force of the adjustable magnet (18). The falling mechanism has the characteristics of being simple in structure, convenient to adjust, high in adaptability, long in service life, easy to maintain, high in cost performance and the like.

A rutile-type nm TiO2 is prepared from 4-valence Ti liquid whose Fe / TiO2 is 0.10-0.40 through hydrolysis by adding diluted alkali solution and crystal seeds in the said 4-valence Ti liquid, selectiveseparation, washing, dispersing, adding rutile crystal promoter, and calcine.

The invention discloses an ocean tidal current energy power generation system which comprises a supporting mechanism, an ocean current energy generator set and a signal monitor mechanism. The supporting mechanism comprises a foundation pile, a horizontal supporting rod and a working platform. The ocean current energy generator set comprises underwater assemblies and an overwater assembly. Each underwater assembly comprises blades, a hub, a generator and a yawing mechanism which are connected in sequence. A variable pitch mechanism is arranged in each hub. Each yawing mechanism is arranged between the corresponding generator and the horizontal supporting rod. The overwater assembly comprises a current transformer connected with the generators and a control cabinet connected with the yawing mechanisms, the variable pitch mechanisms and the generators. The current transformer and the control cabinet are both arranged on the working platform. The signal monitor mechanism comprises a current meter connected with the control cabinet. The current meter is arranged on the horizontal supporting rod and used for monitoring the ocean current direction of ocean current energy in real time. The fixed ocean tidal current energy power generation system is adopted and is a direct drive type wind turbine generator, and the ocean current energy can be efficiently converted into electric energy safely and reliably.

The invention relates to intelligent garden greening construction equipment capable of conducting automatic deviation correction on a paying-off mark. The intelligent garden greening construction equipment comprises a bottom plate. A lifting containing groove is formed in the middle portion of the bottom plate. A walking device is arranged at the lower end of the bottom plate. The bottom plate isprovided with a deviation correcting adjusting device. A mark adjusting device is arranged at the lower end of the deviation correcting adjusting device and located in the lifting containing groove. The deviation correcting adjusting device comprises a deviation correcting adjusting mechanism arranged on the bottom plate, the bottom plate is provided with two rotation auxiliary mechanisms, the tworotation auxiliary mechanisms are symmetrically located at the front end and the rear end of the bottom plate, the deviation correcting adjusting mechanism is provided with a mark line, and positioning mechanisms are symmetrically arranged at the front end and the rear end of the mark line. The intelligent garden greening construction equipment can solve the problems that in the existing garden construction line drawing work process, deviation is likely to happen due to manual line drawing work, time and labor are wasted during manual deviation correcting, and real-time monitoring cannot be conducted; and line drawing tools can be manually selected according to the actual operation environment, and sunstroke is likely to happen during manual outdoor operation in summer.

The invention provides a sea water desalination engineering ship which mainly comprises a wave-piercing ship bow, a connection bridge, an upper-layer building and control chamber, a water turbine cabin, a sea water desalination cabin, a water storage cabin, sheet bodies, a propeller, a tail vane, a diesel engine, a storage battery, an electric motor, a rudder electric motor and the like. The sheet bodies are combined with the connection bridge to form a catamaran. The upper-layer building and control chamber is located near the ship bow and used for containing a control panel, a control panel power source, ship handling operators and the like. The water turbine cabin is used for containing a tide current generation portion and is of a semi-open structure, the upper portion of the water turbine cabin is sealed and the lower portion of the water turbine cabin is communicated with the sea. The sea water desalination cabin is used for containing a sea water desalting kit. The water storage cabin is used for containing a water storage box. The propeller and the tail vane are used for propelling and controlling the ship body to move. The diesel engine and the storage battery are used for supplying power to the electric motor of the ship. The sea water desalination engineering ship saves energy and is environmentally friendly; sea water can be desalted, meanwhile the desalted sea water can be quickly transported, and the ship is suitable for supplying fresh water to islands and coastal areas where fresh water resources lack.

A system for extracting hydrogen from a gas containing methane, especially natural gas. Hydrocarbons contained in the gas are catalytically broken down in a reformer by steam in order to form hydrogen, carbon monoxide and carbon dioxide. Catalytic conversion of the obtained carbon monoxide with steam occurs in a downstream conversion step in order to form carbon monoxide and water. Carbon dioxide is removed from the converted gas flow by gas washing, and the washed hydrogen-rich gas flow is subsequently divided in a pressure-swing adsorption system into a product gas flow made of hydrogen and a waste gas flow. The waste gas flow is introduced with hydrogen, which is separated from the gas flow after gas washing, into a reformer which is essentially a carbon-free combustible gas, and is combusted there.

The invention discloses a preparation method of a low-molecule soybean polypeptide with a healthcare function. The preparation method comprises the following steps of: carrying out superfine grinding on soybean pulp, carrying out enzymolysis for the first time by using a complex enzyme of cellulase, pectinase, endo-beta- glucanase and phytase, and adding neutral protease to carry out enzymolysis for the second time; and taking the soybean pump after the twice enzymolysis as a matrix, and carrying out solid fermentation by using clostridium butyricum, so as to obtain the low-molecule soybean polypeptide. According to the preparation method disclosed by the invention, an enzymolysis and biological fermentation combined manner is adopted to carry out biological conversion on the soybean pulp; through twice enzymolysis and once fermentation, the soybean pump protein is firstly hydrolyzed into a low-molecule peptide chain, and then the low-molecule polypeptide product with a clostridium butyricum living bacteria agent is prepared by taking the low-molecule peptide chain as a matrix, so that the content of main non-starch polysaccharides and the protein molecular weight in the soybean pulp are reduced and the content of the living bacteria agent in the soybean pulp is improved. The preparation method disclosed by the invention is simple, wide in raw material source, low in production cost and easy to industrially popularize, and has favorable social and economic benefits.

The invention discloses a highway and railway dual-purpose double-layer bridge bent frame pier earthquake damage control system and belongs to the field of bridge engineering. The system is mainly composed of a bearing platform, bottom-layer split column piers, a bottom-layer bent cap, top-layer piers, a top-layer bent cap, friction energy dissipation sheets, energy dissipation inclined struts, non-bonding prestress ribs, split columns and the like, wherein all the piers adopt concrete-filled steel tubes. The bottom-layer split column piers are in an integral force bearing mode when normally used, the two ends of each bottom-layer split column pier are almost solidified, the two ends of each split column are transformed into a swing-self-reset system under a strong earthquake, and energy dissipation capacity is provided through the friction energy dissipation sheets between the split columns. The connecting portions between the top-layer piers and the bottom-layer bent cap and betweenthe top-layer piers and the top-layer bent cap are arranged in a swing-self-reset mode, and energy is dissipated through the energy dissipation inclined struts. Through transformation of a bottom-layer split column pier force bearing system and a swing-self-reset reaction of the top-layer piers, earthquake damage control design of a highway and railway dual-purpose double-layer bridge bent frame pier is achieved, the earthquake damage of the structure under the strong earthquake is greatly reduced, and the system is easy to repair after the earthquake.

The invention provides polybutadiene rubber, a preparation method of the polybutadiene rubber, the polybutadiene rubber prepared with the method and oil-extended rubber. The preparation method of the polybutadiene rubber comprises steps as follows: under the anionic polymerization condition, 1,3-butadiene, a solvent and a polarity modifier are continuously introduced into a first kettle of a continuous polymerization reaction device comprising a plurality of serially-connected reaction kettles, and continuous polymerization is performed in all kettles of the continuous polymerization reaction device sequentially; an initiator is introduced into the first kettle and at least one reaction kettle behind the first kettle, and the anionic polymerization temperature is controlled to range from 90 DEG C to 150 DEG C. With the adoption of the preparation method of the polybutadiene rubber, the monomer conversion rate can be increased, and MVBR (medium-vinyl polybutadiene rubber) with wider molecular weight distribution can be obtained.

The invention discloses a brush copolymer and a preparation method thereof. The preparation method comprises the following steps: synthesizing hydroxyl-terminated polystyrene and polyisoprene througha reactive anion polymerization method, and then carrying out esterification reaction on the hydroxyl-terminated polystyrene and the polyisoprene or hydroxyl-terminated polyethylene glycol and exo-5-norbornene-2-carboxylic acid to synthesize norbornene-terminated polystyrene, polyisoprene and polyethylene glycol macromonomers; and changing the feeding ratio and the feeding mode of the macromonomers to carry out ring-opening metathesis polymerization so as to obtain a two-block brush copolymer and a random brush copolymer which have different side chain ratios and arrangement sequences. The method has the characteristics of high reaction efficiency, mild reaction conditions and few side reactions, and the brush copolymer prepared by the method is controllable in structure and molecular weight and narrow in molecular weight distribution.

The invention provides a mechanical baking method of non-pressed dark tea. The method comprises the following steps: evenly conveying the non-pressed dark tea into an automatic tea leaf drying machine for baking, wherein the automatic tea leaf drying machine is provided with 4 or 6 layers of louver boards, the distance between two adjacent louver boards is 25-30cm, and the distance between leaf homogenizing plates is 18-20cm, the air intake temperature is in the range of 100-110 DEG C and the baking time is 40-50 minutes, and the top of the drying machine is semi-closed; after discharging the tea leaf out of the machine, spreading the tea leaf for 20 minutes, and then evenly conveying the cooled tea leaf into the automatic tea leaf drying machine for braking, wherein the distance between the leaf homogenizing plates is 2-4cm, the air intake temperature is within the range of 120-130 DEG C and the baking time is within the range of 20-30 minutes. In this way, according to the mechanical baking method, the modern drying technology is utilized, the mechanical production is adopted and the traditional seven-star cooker baking is replaced by mechanical braking, and therefore, the influence of pine soot caused by open fire generated by burning pine is removed and the influence of the pin soot on the quality safety of the tea leaf is eliminated; in addition, the transformation of substances in the tea leaf is also guaranteed, the quality requirement on processing the non-pressed dark tea into the finished dark tea can be met, the continuous processing of the non-pressed dark tea can be realized, the raw material processing efficiency can be improved and the processing quality stability can be guaranteed.

The invention relates to a decompression acid making process of polysilicon 10barg HCl (hydrogen chloride) tail gas, in particular to a specific process technology by which gasification, decompression and water absorption are carried out on 10barg liquid chlorine hydride separated and extracted from the production of polysilicon, thus the tail gas becomes hydrochloric acid and is further recycled. The production process is as follows: heating the liquid chlorine hydride with the pressure of 10barg and the purity of 99%, which is separated and purified by a polysilicon production tail gas recovery unit, to 10-20 DEG C through a heating gasifier, leading the liquid HCl to change from the liquid state to the gas state; then decompressing gas HCl with the pressure of 10barg to 0.1-0.5barg through a decompression device; further introducing the HCl into a spray absorption device for carrying out the water absorption; carrying out circulating counter-current multi-stage concentration and absorption; and producing and preparing the hydrochloric acid with the concentration of 26-31%. In the production process of the polysilicon, as the hydrochloric acid is prepared by exhausting the 10barg HCl separated and purified by the tail gas recovery unit to an HCl thickening absorption device of a waste gas and waste liquid treatment system when a fault occurs in the TCS (trichlorosilane) synthesis, a reasonable treatment way is found out for the 10barg HCl during an accident, thereby ensuring the normal production of a reduction unit, a transformation unit and the tail gas recovery unit, and enhancing the anti-accident capacity of a polysilicon production line.

The invention discloses a multi-stage tubular electrolysis device for preparing octafluoropropane by adopting an electrolysis method and a preparation method. The device comprises more than two electrolytic baths, local porous anodes, cathodes, liquid inlets, gas pipelines and gas outlets, wherein the electrolytic baths provide a closed electrolytic environment and store electrolytes; the anodes provide gas raw material channels and the fluorine element for reaction; the cathodes form an electronic loop; an electrolyte is added into the electrolytic baths through the liquid inlets; the electrolytic baths are connected through the gas pipelines, electrolysis gas of the previous electrolytic cell is cooled, and a gas channel is provided; and the octafluoropropane crude product gas is mainly discharged through the gas outlets. The device and the method have the advantages of simple production process, high octafluoropropane yield and the like.

The invention relates to a method for preparing cyclohexane by hydrogenating benzene. A gas-phase series-connected double-fixed bed reactor is adopted, and the gas-phase series-connected double-fixed bed reactor comprises a first reactor and a second reactor; the first reactor is filled with a load type cobalt-based catalyst; the second reactor is filled with a load type nickel-based catalyst. Compared with the traditional process for preparing the cyclohexane by hydrogenating the benzene, the method disclosed by the invention can effective control the generation of reaction heat and prevent the phenomenon of 'temperature runaway' generated by excessively high reaction speed; in addition, the method disclosed by the invention sufficiently makes up the cost raise brought by increasing a reactor in such a way that double reactors both adopt non-noble metal catalysts and can provide high transformation ratio.

The invention discloses a multi-wavelength laser power calibrating apparatus and method. The multi-wavelength laser power calibrating apparatus comprises a sensor, an apparatus host and a light path locking device. The light path locking device is arranged between a laser source to be measured and the sensor; the sensor converts laser power signals emitted by the laser source to be measured into electric signals and transmits the electric signals to the instrument host to be processed. The multi-wavelength laser power calibrating method comprises the steps of stability testing, sensitivity testing and the like. According to the multi-wavelength laser power calibrating apparatus and method, optical mechanical and electronic integration is achieved. The operation method is easy and convenient to implement, digital display is achieved, the accuracy is high, and the stability is good. The apparatus is miniaturized and is low in weight so as to be suitable for fast detecting power of a laser appliance during field operations.

The invention discloses a method for utilizing a microchannel reactor to synthesize a paliperidone midbody, and belongs to the technical field of psychotropic medicine synthesis in organic synthesis.By means of the method, a paliperidone hydrogen-adding reaction precursor 3-(2-chloroethyl)-2-methyl-9-hydroxyl-4H-pyridino-[1,2-A]pyrimidine-4-ketone is added into an organic solvent, after a catalyst of activated-carbon-loaded precious metal is added, the mixture is used as a first material, and the first material is delivered into a preheating module of the microchannel reactor to be preheated;the preheated first material and hydrogen are delivered to a reaction module of the microchannel reactor separately to be reacted, reaction liquid flowing out of an outlet of the microchannel reactoris collected, and the paliperidone midbody is obtained through aftertreatment. By means of the synthesis method, the reaction time can be effectively shortened, the potential safety hazard of a hydrogen leakage combustion explosion is greatly lowered, and the method is applicable to synthesizing the paliperidone midbody.