129results about How to "Good stability" patented technology

The invention provides a polymeric chemical blocking remover which is prepared from the following raw materials in parts by mass: 1.5-5 parts of a solid oxidizing agent, 0.5-2.5 parts of a catalyst, 0-1 part of a strippant, 0-1 part of a penetrating agent, 0-1 part of a ferric ion stabilizer and 2-5 parts of a corrosion inhibitor, wherein the solid oxidizing agent is urea peroxide; the catalyst is formic acid, acetic acid, citric acid, hydrochloric acid, oxalic acid, sulfamic acid and various substituents, Na2CO3, NaOH, sodium sulfite, sodium hydrogen sulfite, formaldehyde or thiourea; the strippant is urea, PEG-400 or ethanol amine; the penetrating agent is a nonionic surfactant; the nonionic surfactant is fatty alcohol-polyoxyethylene ether; the ferric ion stabilizer is citric acid, acetic acid, nitrilotriacetic acid or ethylene diamine tetra acetic acid; and the corrosion inhibitor is formaldehyde, acetaldehyde, benzaldehyde, butanedial or glutaraldehyde.

The invention relates to the technical field of Chinese teaching devices, and particularly relates to a multifunctional teaching device for Chinese teaching. The multifunctional teaching device comprises a writing display board, wherein a first sliding groove is formed in the writing display board; two extending writing boards are slidably connected in the first sliding groove; the two extending writing boards are symmetrically arranged left and right; each extending writing board comprises a thick writing layer and a thin limiting layer; a limiting sliding block is fixed at the bottom of theinner end of each thin limiting layer; a second sliding groove is formed in the position, corresponding to the corresponding limiting sliding block, of the rear groove wall of the first sliding groove; the limiting sliding blocks are slidably connected with the second sliding grooves; a push plate is arranged on the outer sides of the two second sliding grooves; and the push plate is connected with a linkage assembly. According to the multifunctional teaching device, the extending writing boards are arranged, when the writing area of the writing display board is not enough, the extending writing boards can be pulled outwards, after the extending writing boards slide to the outermost end, a rotating handle is rotated to drive the push plate to move, so that the thick writing layers are flush with the front side writing surface of the writing display board, and continuous writing is facilitated.

The invention relates to a double-shed loom and a multi-layer three-dimensional spaced elastic fabric weave design method for a seat. The double-shed loom is used for weaving multi-layer three-dimensional spaced elastic fabric for the seat and comprises a let-off mechanism, a weft insertion mechanism, a beating-up mechanism, a winding mechanism and an opening mechanism. According to the design method, the double-shed loom is adopted, and the design method is divided into veil interweaving type weave design, high-shrinkage yarn interweaving type weave design and vertical yarn interweaving type weave design. According to the invention, the fabric has certain compressive elasticity through the design of the texture, and compared with the traditional sponge seat cushion, the thickness of the three-dimensional spacer fabric is small due to the multiple groups of three-dimensional hollow structures between the longitudinal layers; compared with a conventional three-dimensional fabric, the three-dimensional spacer fabric has the advantages that the thickness and the hollowness are improved, the rebound resilience is better, and the stability of a spatial three-dimensional hollow structure is better.

The invention provides an SOPC-based embedded dual-core servo controller and a designed method thereof. The hardware architecture includes an FPGA, a power system, a program FLASH, a data FLASH, a driver, a data instruction communication unit, and a sensor data reading unit and the like, wherein the power system, the program FLASH, the data FLASH, the driver, the data instruction communication unit, and the sensor data reading unit and the like are in signal connection with the FPGA. The FPGAs is provided with two Microblaze soft-core processors to carry out dual-core parallel computing. A plurality of IP soft cores are signal connection by a PLB bus. All Microblaze soft-core processors carry out data exchange with all IP soft cores through PLB buses. The two Microblaze soft-core processors carry out dual-core data communication. According to functional requirements of the control system, the hardware architecture and interface type are determined; the software bottom architecture is determined; compiling is carried out by using an XPS tool; a top interface file is outputted; and top-level soft core controller design development is carried out at an SDK platform. Therefore, the co-processing ability of the controller is enhanced. The SOPC-based embedded dual-core servo controller has advantages of abundant resources, strong expandability, high reliability, low cost and simple design.

The invention discloses a machining positioning device. The machining positioning device comprises a supporting base and a rotating table rotationally installed above the supporting base, the rotatingtable is of a hollow structure, sliding plates are fixedly arranged on the two sides of the top of the rotating table in a sliding mode, vertically-arranged positioning frames are fixedly connected to the inner sides of the upper surfaces of the two sliding plates, positioning abutting blocks are fixedly arranged on the sides, away from each other, of the two positioning frames, and the same pipefitting is placed on the two sliding plates. According to the machining positioning device, it can be guaranteed that a pipe fitting is positioned and fixed more firmly, stability is good, stabilityof the pipe fitting in the subsequent machining process is greatly guaranteed, and the defect that normal grinding machining of the outer wall of the pipe fitting is affected due to the fact that mostexisting machining positioning devices apply acting force to the two sides of the pipe fitting to relatively position and fix a workpiece is overcome; and moreover, the positioning effect is good, sliding deviation is not likely to happen, normal grinding machining is guaranteed, and the quality of the machined pipe fitting is guaranteed.

The invention discloses a novel respiratory type curtain wall system, and relates to green buildings. The problem that loosening between a connecting piece and an outer layer curtain wall easily occurs in a long-term use process so as to result in larger safety hidden dangers is solved. The novel respiratory type curtain wall is characterized by comprising prefabricated pieces horizontally embedded in a wall body positioned between floors, wherein parts, penetrating through the wall body, of the prefabricated pieces are fixedly connected with mounting pieces; the mounting pieces are arranged on the surface of a longitudinal wall body; each of the mounting piece comprises first fixing parts which are symmetrical to each other and second fixing parts which are symmetrical to each other; thefirst fixing parts are connected with inner fixing pieces and are connected with inner-layer glass through the inner fixing parts; and one end, facing the outer side of the wall body, of the corresponding second fixing part is connected with an outer fixing piece and is connected with outer-layer glass through outer fixing pieces; and the outer fixing pieces are provided with connection clamping legs, and connection clamping grooves connected with the connection clamping legs in a clamping manner are formed in the second fixing parts, so that the stability of the connection between the prefabricated pieces and the outer-layer curtain wall can be improved.

According to the technical scheme, a production system of a concrete admixture is characterized by comprising a first material storage tank, a second material storage tank, a third material storage tank, a first material mixing machine and a second material mixing machine, and an accelerator is stored in the second material storage tank; the output end of the first material storage tank is communicated with the input end of the first material mixer, the output end of the third material storage tank is communicated with the input end of the first material mixer, and the output end of the first material mixer is communicated with the input end of the second material mixer; and a first stirring assembly capable of extruding, rolling up and down, stirring and mixing materials is arranged in the first mixer, and a second stirring assembly capable of rubbing and stirring the materials is arranged in the second mixer. The invention also discloses a production process of the concrete admixture. The system and the process have the beneficial effects that the produced concrete admixture is good in quality, and the production efficiency is high.

The invention belongs to the technical field of food processing, and particularly relates to a preparation method of litchi fruit and camellia nitidissima fruit wine. The preparation method comprises the following preparation steps: selecting fresh and ripe litchi fruits, and performing cleaning, peeling, stone removing and squeezing to obtain litchi fruit juice; adding a clarifying agent into the litchi fruit juice, and performing standing and filtering to obtain litchi fruit clear liquid; introducing sulfur dioxide into the litchi fruit clear liquid, adjusting the sugar content and the pH value, then adding saccharomycetes, and performing uniform stirring and fermentation; taking camellia nitidissima, and performing washing, ultrasonic extraction, water extraction and concentration to obtain camellia nitidissima extractum; fermenting the litchi fruit clear liquid for 24-30h, adding the camellia nitidissima extractum and mannitol for further fermentation; and performing filtering, ageing and sterilizing. The litchi fruit and camellia nitidissima fruit wine prepared by the method of the invention is clear and transparent in wine body, mellow in taste, strong in special fragrance of litchi fruits and free of bitterness and astringent taste.

The invention relates to a forging die for hubbed flange forge pieces. The forging die for the hubbed flange forge pieces solves the technical problems of low accuracy of an existing forging die, and the like. The forging die for the hubbed flange forge pieces comprises an upper die body, a lower die body and a forming die cavity. The forming die cavity comprises a cylindrical channel, a first forming bump, first upper annular grooves, second upper annular grooves and third upper annular grooves; a first upper annular step is formed between each first upper annular groove and each second upper annular groove; a second upper annular step is formed between each second upper annular groove and each third upper annular groove; a second forming bump is arranged on the upper end of the lower die body; a third forming bump extending toward the first forming bump is arranged in the middle part of the upper end of the second forming bump; lower annular bosses are arranged on the outer sides of the circumference of the second forming bump; a lower annular groove is formed between the outer side of the circumference of the second forming bump and each lower annular boss. The forging die for the hubbed flange forge pieces has the advantages that the processed finished forge piece is high in accuracy, the subsequent process steps are less, and the forging die is good in stability and not easy to deviate during the forging process.

The invention belongs to the technical field of agricultural underground harvesting machinery, and particularly relates to an underground crop harvester which can be used for harvesting Chinese yam, burdock, green onion, liquorice and so on. The underground crop harvester comprises a machine body, and is characterized in that a driving bridge axle is arranged at the back part of the machine body; floating supports are hinged to the two sides of the driving bridge axle; an eccentric bridge axle is mounted on the floating supports; eccentric wheels are mounted on the two sides of the eccentric bridge axle; shaft sleeves are arranged on the eccentric wheels; the shaft sleeves are connected with guide rods; linkage shovels are mounted at the tail ends of the guide rods; soil digging chains sleeve the floating supports; a plurality of soil digging blades are arranged on the soil digging chains. The underground crop harvester has the beneficial effects as follows: the underground crop harvester can rapidly and continuously cut both sides of an underground crop and efficiently vibrates the crop in the middle so as to quickly take out the underground crop; the underground crop harvester is simple in structure, convenient to operate, good in stability, high in working efficiency and small damage to the crop, facilitates popularized cultivation of Chinese yam, and improves economic benefits of farmers.

The invention discloses a glutathione reductase determination kit, which comprises a reagent R1 and a reagent R2, and is characterized in that the reagent R1 comprises a Tris buffer solution, ascorbic acid oxidase, pyruvate oxidase, potassium ferrocyanide, oxidized glutathione GSSG, MgCl2 and alkyl glycoside; the reagent R2 is prepared from a Tris buffer solution, NADPH (Nicotinamide Adenine Dinucleotide Phosphate) and alkyl glycoside. According to the present invention, the alkyl glycoside is added to the reagent R1 and the reagent R2 of the glutathione reductase determination kit, such that the kit has characteristics of good stability and wide linear range, can achieve the accurate determination of glutathione reductase, and is suitable for clinical application and promotion.

The invention discloses a nickel selenide and ternary nickel selenide iron composite electrocatalyst. The nickel selenide and ternary nickel selenide iron composite electrocatalyst comprises foam nickel iron alloy, and a layered electrocatalyst layer formed on the surface of the foam nickel iron alloy through in-situ growth; the layered electrocatalyst comprises NiSe2 and NiFe2Se4, and is of a three dimensional nanometer wrinkle structure. The invention also provides a preparation method of the composite electrocatalyst. The preparation method comprises following steps: nickel iron alloy is subjected to ultrasonic cleaning; selenium powder is introduced at the bottom of a quartz tube, the foam nickel iron ally is fixedly arranged at the middle part of the quartz tube, and vacuum sealing ofthe quartz tube is carried out; the quartz tube is introduced into a tubular furnace for calcining, so that in-situ growth of the layered electrocatalyst of the three dimensional nanometer wrinkle structure on the surface of the foam nickel iron alloy is realized. The invention also provides applications of the composite electrocatalyst in electrocatalytic water decomposition to prepare oxygen under alkaline conditions. The layered electrocatalyst is of the three dimensional nanometer wrinkle structure, so that the electrochemical area of the composite electrocatalyst is enlarged, and high activity and stability on electrocatalytic oxygen evolution reaction are achieved.

The invention belongs to the technical field of building coatings, and particularly relates to an inorganic external wall heat insulation coating. Comprising the following components in parts by weight: 20-25 parts of water, 3-5 parts of cellulose, 3.15-4 parts of an auxiliary agent, 13-17 parts of nano heat insulation material slurry, 8-12 parts of titanium dioxide, 10-15 parts of heavy calcium carbonate, 5-9 parts of barium sulfate, 1-5 parts of alumina sol, 20-25 parts of potassium silicate, 5-8 parts of a water-based silicone acrylic emulsion, 0.4-0.6 part of a dispersing agent, 0.1-0.3 part of a wetting agent, 0.3-0.5 part of a defoaming agent, 0.1-0.3 part of an anti-settling agent, 0.3-0.6 part of a stabilizer and 0.4-8 parts of a waterproof agent. 0.3 to 0.6 part of a thickening leveling agent and 0.2 to 0.4 part of an inorganic mildew preventive. The inorganic external wall heat insulation coating is excellent in water resistance, stability, heat insulation effect and environmental protection performance.

The invention provides a cationic microbubble-rAAV-miRNA virus compound as well as a preparation method and application thereof, and relates to the technical field of biology. The method comprises thefollowing steps: preparing cationic microbubbles; synthesizing an rAAV-miRNA virus with negative charges; and mixing the cationic microbubbles with the rAAV-miRNA virus according to a certain volumeratio, and carrying out incubation at room temperature so as to form the cationic microbubble-rAAV-miRNA virus compound. The compound disclosed by the invention has the continuous expression propertyand certain targeting property of viruses, and is an effective reagent for miRNA intervention. In addition, in combination with an ultrasonic targeted microbubble disruption (UTMD) technology, the cationic microbubble-rAAV-miRNA virus compound is mediated to release rAAV-miRNA viruses at the heart in a targeted manner so as to intervene in miRNA. Under the action of UTMD, the cationic microbubble-rAAV-miRNA virus compound is exploded to release rAAV-miRNA viruses in a targeted manner, so that the infection efficiency of the viruses can be further improved, the intervention effect of the miRNAis enhanced, and the expression level of the miRNA is reduced or up-regulated.

The invention discloses a flower wall-shaped Mn-Fe prussian blue analogue material and a preparation method and application thereof. The preparation method comprises the following steps of preparationof a solution A, wherein 0.1-0.2 g of K3[Fe(CN)6] is weighed and dissolved in 10-30 mL of deionized water to obtain the solution A; preparation of a solution B, wherein 0.05-0.1 g of MnCl2 is weighedand dissolved in 10-30 mL of deionized water to obtain the solution B; a reaction, wherein the solution A is dropwise added into the solution B under the stirring condition, after the solution A is completely dropwise added, the mixed solution is subjected to the stirring reaction for 16-32 hours, and the flower wall-shaped Mn-Fe prussian blue analogue material is obtained. A modified electrode prepared by utilizing the flower wall-shaped Mn-Fe prussian blue analogue material has high sensitivity and selectivity and a low detection limit for detection for 2,4-dinitrophenol.

The invention discloses a high-effective composite flocculant for treating low-turbidity water and a preparation method of the high-effective composite flocculant. The raw materials of the high-effective composite flocculant comprise sodium aluminate, a sodium silicate solution, an aluminum sulfate solution and the like. The preparation method comprises three steps including preparation of a stable sodium aluminate solution, preparation of a polysilicate solution with a low polymerization degree and a polymeric reaction. According to the preparation method disclosed by the invention, when silicic acid is activated, due to the combination of weak acid with strong acid ammonium salt, the polymerization speed of self polymerization of the silictic acid is effectively controlled and stable polysilicate with the low polymerization degree is prepared; and in the subsequent polymeric reaction, the bonding of aluminum with silicon is facilitated, the effective smooth operation of the polymeric reaction is ensured and the obtained inorganic polymer composite flocculant is favorable in stability and low in consumption; and flocculating constituent particles are quick in settling and favorable in reaction effect.

The invention relates to a preparation method of a sterilization disinfectant for killing coronaviruses. The preparation method comprises the following steps: mixing a surface-modified nano nitrogen-doped nano titanium dioxide solution and a surface-modified nano plant extract solution, magnetically stirring the mixture, and carrying out ultrasonic dispersion to obtain the composite sterilizationdisinfectant. According to the composite sterilization disinfectant, the sterilization and disinfection capacity of nano titanium dioxide and plant extracts can be remarkably improved, particularly, the coronavirus killing capacity is improved, and the product stability is high.

The invention discloses an olive leaf and grape botanical pesticide. The pesticide is prepared from olive leaves, momordica cochinchinensis, melia azedarach leaves, sweet-clover astragalus, agrimonia pilosa ledeb, sanguisorba officinalis, Chinese prickly ash, cinnamon, cortex phellodendri, atractylodes macrocephala koidz and a modified starch solution. Main components of the pesticide are extracted from Chinese herbal medicine. Compared with a traditional organic pesticide, the pesticide has the advantages of being safe, low in toxin and free of pungent smell and pesticide resistance, and after reasonable complexing, the antibacterial and insect-killing effects are remarkable; by adding modified starch, the pesticide is better in stability and difficult to decompose; meanwhile, the modified starch can adsorb excessive components in the pesticide, and pesticide residues of fruits are further reduced; besides, the extraction components of Chinese herbal medicine contain various nutrients and also contain active enzyme, antioxidant, growth promoting factors and the like, quality of grapes is improved, the seedless rate of grapes is increased, and the effect of reducing the cholesterol level of a human body is enhanced.

The invention provides a commodity customized method based on big data processing. The method comprises the following steps that (1) all items corresponding to a name keyword are obtained; (2) an object commodity is selected, logics and computing are carried out on all the residual items, and commodities whose results are true serve as an equivalent commodity group; (3) an acceptable sale volume is obtained; (5) data of all e-commerce platforms within a given range is processed, and the acceptable sale volumes of the platforms are added to obtain a total effectively sale volume; (6) the customization amount is obtained and sent to a processing scheduling system; (7) the processing scheduling system processes certain commodity according to the customization amount; and (8) the processing scheduling system sends real-time processing information for checking. The commodity customized method has the advantages that an information collection mathematical model is simple and reasonable, the computing speed is high, and occupied resource is fewer; and the processing information can be displayed in real time, a demanding end is tightly and effectively combined with a supply end, and the communication manner is stable and reliable.

The invention relates to an anti-toppling hydraulic jack. The anti-toppling hydraulic jack comprises a transmission ring, a bearing plate, a jack body and a directional lifting structure, the bearing plate is mounted at the inner side of the transmission ring through a sliding structure, the jack body is mounted in the center of the bearing plate, and a force exerting end is movably mounted on the jack body. The jack body is further connected to at least four gravity center dispersing mechanisms circumferentially distributed at the eccentric position of the bearing plate, when the gravity center dispersing mechanisms work, the gravity center borne by the jack body and the force exerting end is dispersed to the bearing plate, and the directional lifting structure is installed at the bottom of the bearing plate. The directional lifting structure is used for enabling the bearing plate to incline to any side when the bearing plate needs to incline, the stability and scene adaptability of the jack are outstanding, the size is small, the jack can replace an existing common jack, the jack can be worn along with a vehicle, the jack can be used when the vehicle needs to be maintained on various roads, and the jack is not limited to the road surface.

The invention discloses a preparation method of a Fe/AlOOH catalyst. The preparation method comprises steps as follows: a, AlOOH powder is added to water in the mass ratio of the AlOOH powder to waterbeing 1:(50-600), the mixture is subjected to ultrasonic mixing, FeCl3.6H2O is added, ultrasonic mixing is performed, and a suspension A is obtained, wherein the mole ratio of the AlOOH powder to FeCl3.6H2O is (0.5-2):1; b, the suspension A in the step a is added to sodium borohydride and mixed to react until no bubbles are produced, a Fe/AlOOH suspension is obtained, and the mole ratio of sodiumborohydride to FeCl3.6H2O is (3-4):1; c, the Fe/AlOOH suspension in the step b is subjection to suction filtration, cleaning and filtration and then is dried under the condition of room temperature,and a Fe/AlOOH catalyst is obtained. The Fe/AlOOH catalyst is prepared with a wet chemical reduction method is prepared, and the prepared Fe/AlOOH catalyst has better stability and has high catalyticactivity when used for catalyzing an aluminum-water reaction for hydrogen production; the whole hydrogen production process is concise and efficient and causes no pollution to the environment.

The invention discloses a steel strip punching-off device. The steel strip punching-off device comprises a steel strip punching unit and a steel strip punching-off unit in sequence. The steel strip punching unit comprises a punching unit upper fixing member and a punching unit lower fixing member respectively arranged on the upper side and the lower side of a steel strip. The punching unit upper fixing member is pressed against one end of the upper surface of the steel strip, and the other end of the upper surface of the steel strip is provided with a punching unit upper module. The punching unit upper module moves up and down to punch the steel strip under the action of a punching unit driving source. The punching unit lower fixing member is provided with a punching unit lower die hole matched with a punching unit upper module. The punching-off device is high in precision, low in cost, capable of achieving automatic operation, high in efficiency and good in stability.

The invention discloses a method for hypoxia culture of an endometrial stem cell from menstrual blood. The endometrial stem cell is derived from the menstrual blood of an adult woman, and the culturecondition is 1 to 10% of oxygen concentration(preferably 5%). The method has the characteristics that the preparation is simple and convenient, the scale production is easy, the stability is good, andthe like; compared with the endometrial stem cell which is cultured under a normoxic culture condition, the hypoxia cultured endometrial stem cell in the oxygen-deficient environment has stronger survival ability.

The invention discloses a cyclic oligomeric phosphonitrile compound as well as a preparation method and an application thereof. The cyclic oligomeric phosphonitrile compound disclosed by the inventionhas high stability and is easy to transport and store; without heavy metal elements, the cyclic oligomeric phosphonitrile compound is a green environment-friendly product; and meanwhile, the cyclic oligomeric phosphonitrile compound has the advantages of simple synthesis route, easily available raw materials and low cost, and is suitable for popularization and application.

The invention discloses a preparation method of a thin-wall high-temperature-resistant radiation-resistant flame-retardant cable material, namely, polyether-ether-ketone. The method comprises the following steps: placing a three-component bisphenol monomer, difluorobenzophenone, and K2CO3 or Na2CO3 into an organic solvent according to a molar ratio of 1:1:(1.2-2.0), conducting reacting at 130-150DEG C for 1-5 hours under the action of N2 flow, and the conducting reacting at 150-170 DEG C for 3-20 hours to prepare the thin-wall high-temperature-resistant radiation-resistant flame-retardant cable material polyether-ether-ketone. The method is simple and easy to implement, and the thin-wall high-temperature-resistant radiation-resistant flame-retardant cable material polyether-ether-ketone is prepared by adopting a stepwise polymerization method. The cable material prepared by the invention has the characteristics of high strength, high wear resistance, high oil resistance, high-temperature resistance, radiation resistance, good electrical insulation property, low smoke, no halogen, flame retardancy and the like, is very suitable for extrusion of ultrathin-wall cables, can meet the processing technology of ultrathin-walled insulated cables and the technical requirements of products, is convenient to produce, and has good economic benefits and popularization values.

The invention discloses a generalized decoupling and parallel connection mechanism with the three-rotation and one-movement property. The mechanism comprises a base, a movable platform and four branches for connecting the base with the movable platform. One end of each branch is connected with the base through a rotating pair or a moving pair. One end of the first branch and one end of the second branch are connected with the base through the moving pairs correspondingly, the other end of the first branch and the other end of the second branch are connected with the movable platform through the rotating pairs correspondingly, the axes of the rotating pairs connected with the movable platform coincide, one end of the third branch and one end of the fourth branch are connected with the base through the rotating pairs correspondingly, and the other end of the third branch and the other end of the fourth branch are connected with the movable platform through the moving pairs and the rotating pairs correspondingly. The mechanisms and the connection pairs of the four branches are different from one another, and the different branches are completely decoupled. The generalized decoupling and parallel connection mechanism is high in rigidity, simple in structure, easy to control and capable of completing decoupling of three rotation and movement in one direction.

The invention provides a dandelion beverage. The dandelion beverage is prepared from the following components in percentage by mass: dandelion extract, 8-13 percent of a sweetener, 0.1-0.2 percent ofa sour agent, 0.15 percent of a compound stabilizer, and the balance of an edible solvent. The dandelion extract is obtained by extracting dried dandelions accounting for 3-5 percent by mass of the dandelion beverage. The compound stabilizer is composed of 0.05% of pectin and 0.1% of carboxymethyl cellulose. The dandelion beverage provided by the invention has excellent stability. After 20 days ofstanding at a constant temperature of 37+/-1 DEG C, a quality determination indicates that the beverage has a brown color, and has a dandelion fragrance, no peculiar smell, no delamination and no foreign impurities. Besides, the soluble solid content is 12.2%, the pH value is 3.75-3.85, and the microorganism index is fully in line with the commercial sterility requirements.

The invention relates to a space hybrid propulsion system based on the technology of photocatalytic water splitting for hydrogen production, and aims to solve the problem that in an existing water-based propulsion system, solar arrays are large in size, a proton exchange membrane water electrolytic cell is high in requirements for electrical energy, large in loss of electrical energy and low in hydrogen production efficiency, and the propulsion system is complicated in structure. The space hybrid propulsion system comprises a water storage tank, a photocatalytic water splitting module, a hydrogen and oxygen storage module, a hydrogen and oxygen flow control module, a hydrogen and oxygen engine module and an oxygen cold gas engine module, wherein the photocatalytic water splitting module comprises an electrolytic cell, a proton exchange membrane, a hydrogen production electrode, an oxygen production electrode and a condenser; the proton exchange membrane is arranged in the electrolytic cell; the electrolytic cell is divided into a hydrogen production chamber and an oxygen production chamber by the proton exchange membrane; the hydrogen production electrode and the oxygen production electrode are separately arranged in the hydrogen production chamber and the oxygen production chamber; the condenser is arranged on the oxygen production chamber; the water storage tank is used for supplying water to the photocatalytic water splitting module; the hydrogen and oxygen storage module is used for storing hydrogen and oxygen; and the hydrogen and oxygen are supplied to the hydrogen and oxygen engine module and the oxygen cold gas engine module through the hydrogen and oxygen flow control module.