155results about How to "Sufficient supply" patented technology

The invention discloses a twisting clamping refrigerating and heating device with cold and hot end separation and work recovery functions. The twisting clamping refrigerating and heating device comprises a stator module, a rotor module and a heat exchange module. The stator module comprises an inner gear and an outer gear, and teeth are arranged on partial edges of the inner gear and the outer gear. The rotor module comprises a torsion clamping refrigerant and a loading gear; the heat exchange module comprises an inner cylinder and an outer cylinder. And the loading gear revolves to drive the torsion clamping refrigerant to change the heat exchange position, and rotates to drive the torsion clamping refrigerant to be loaded and unloaded. When the loading gear is meshed with the inner gear, the loading gear rotates in the forward direction, and the torsion clamping refrigerant generates heat due to loading; when the loading gear is meshed with the outer gear, the loading gear rotates reversely, and the torsion clamping refrigerant absorbs heat due to unloading. According to the device, a heat exchange area is effectively separated, the problem of mutual interference of cold and heat is avoided, and the heat exchange efficiency and power are greatly improved; the resilience force generated when the torsion clamping refrigerant is unloaded is transmitted to the loading area, auxiliary power is provided for the loading process, recycling of work is achieved, and the energy utilization efficiency is improved.

The invention belongs to the technical field of heat energy power, and discloses a combined energy system of a green liquid cooling data center, which comprises a liquid cooling subsystem, a heat pump subsystem, an energy storage compression cooling subsystem, an energy storage expansion heating subsystem, an organic Rankine cycle power generation subsystem, an absorption refrigeration subsystem and a heat supply subsystem. Heat generated by the heat pump subsystem and compression heat generated by the energy storage compression cooling subsystem are coupled and stored in the high-temperature water tank, and the collected heat is distributed to the energy storage expansion heating subsystem, the organic Rankine cycle power generation subsystem, the absorption type refrigeration subsystem and the heat supply subsystem according to needs. The system is used for generating electric power, cold energy and heat energy respectively and providing the electric power, the cold energy and the heat for the data center and surrounding users, thereby reducing operation cost of the data center and realizing efficient utilization of energy of the data center.

The invention provides a preparation method of an integrated and dual-channel PCNFs / ZIF8-SA composite aerogel and a product and application thereof, and the preparation method comprises the following steps: step 1, adding sodium alginate SA and ZIF-8 into a PCNFs suspension, and stirring until the SA is fully dissolved until a uniform mixed solution is formed; the PCNFs is PAN / ZIF-8 / lignin / NaCl carbon nanofibers after hydrophilic modification, and the pH value of the PAN / ZIF-8 / lignin / NaCl carbon nanofibers is 7-8; step 2, pouring the mixed solution into a mold, and performing directional freezing in a freeze dryer to obtain a composite aerogel columnar structure with a directional channel structure; 3, hydrophobic modification is conducted on the upper layer of the composite aerogel columnar structure, a hydrophobic layer with a certain thickness is formed, the lower layer of the composite aerogel columnar structure is a hydrophilic layer, and the hydrophobic layer and the hydrophilic layer are integrated. The aerogel disclosed by the invention has a dual-channel integrated special structure including a fresh water channel and a salt extraction channel, accumulated salt can be extracted from a side channel while efficient solar seawater desalination is realized, an evaporation channel is prevented from being blocked, and the evaporation efficiency and the stability of the composite aerogel are well improved.

The present invention provides a 5-hydroxytryptophan production strain and a construction method and application thereof. The strain has a clear genetic background and is effective in producing 5-hydroxytryptophan. E.coli HTP11 Subtilis subtilis spores pureF bsu K316Q Mutated gene, upregulated strain E.coli HTP11 of guaB , guaA , gmk , ndk The transcription level of the gene was increased by heterologous introduction of the gapX Gene, missing aromatic amino acid transporter serB , tnaB , aroP Gene, up-regulated inner membrane efflux transporter yhjV The transcription level of the gene was increased and electroporated into the pTm-serB plasmid, which could stably provide 5-hydroxytryptophan, the direct precursor of 5-hydroxytryptophan, and had a high efficiency of 5-hydroxytryptophan output.

The invention relates to an irrigation and fertilization method for high-efficiency production of cotton under a zero chemical regulation condition, which comprises the following steps: setting a plant water deficit index threshold value, and setting a water regulation coefficient according to the sensitive degree of cotton in each growth stage to water stress; optimally determining the total fertilization amount in the whole growth period of the cotton, and determining a nutrient regulation coefficient according to the sensitive degree of the cotton in each growth period to nutrient stress; continuously obtaining root zone soil moisture and salinity dynamic data, and evaluating a plant moisture deficit index; when the estimated value of the plant water deficit index threshold value is larger than the set threshold value, a valve is opened for irrigation, the irrigation quota is calculated, and staged pulse fertilizer injection or continuous variable fertilizer injection is adopted in the water and fertilizer integrated implementation process. According to the method, the water, fertilizer and salt environmental conditions of the soil are regulated in time through irrigation and fertilization, the growth process of the cotton is further regulated, especially the relation between vegetative growth and reproductive growth is optimized, excessive growth of the cotton is effectively prevented on the premise that growth regulators such as mepiquat chloride are not applied, and the aims of saving water and fertilizer, inhibiting salt, increasing yield and income and the like are achieved.

The invention provides a novel preparation method of mercaptosuccinic acid betaine (1: 1), and the preparation method adopts betaine and mercaptosuccinic acid as main raw materials, adopts water as a solvent, and enables the mercaptosuccinic acid and the betaine to directly react under a heating condition, so that the mercaptosuccinic acid betaine (1: 1) represented by a formula (I) is obtained with high purity. # imgabs0 #

The present invention relates to the technical field of atomizing drug delivery devices, and in particular to an atomizing breathing drug delivery device. The device comprises an oxygen source, an atomizer, a humidifier and a controller. The present invention generates a high-speed airflow through oxygen drive to excite the humidifying liquid into microparticles or mist particles suspended together with the atomized drug particles in the inhalation airflow to enter the airway, and in the drug delivery process, the user's real-time blood oxygen saturation, real-time cough times and real-time cough frequency are monitored to analyze the impact of the atomizing breathing drug delivery device on the user. If the drug delivery quality of the atomizing breathing drug delivery device is low, that is, the airway humidification is insufficient, or the humidifying liquid is not fully heated, the wet and cold atomized gas directly stimulates the respiratory mucosa to increase the burden on the bronchus, thereby stimulating the user to cough, which will increase the severity of the cough. Therefore, by analyzing the cough characteristics, the humidification state of the supplied drug is adjusted to ensure the drug delivery quality and airway humidification effect.

The invention discloses recombinant escherichia coli with high yield of N-acetylneuraminic acid and application of the recombinant escherichia coli, and relates to the technical field of biological genetic engineering. The invention relates to a recombinant escherichia coli, which is characterized in that the escherichia coli is taken as a host, and free expression of an N-acetylmannosamine epimerase gene yihS from Streptomyces xiamenensis or an N-acetylmannosamine epimerase gene ce3 from Bacteroides polymorpha and an exogenous N-acetylneuraminic acid lyase gene nano A is carried out; and carrying out recombinant expression on N-acetyl hexosamine 1-kinase nahK, a UDP-N-acetyl glucosamine pyrophosphorylase gene glmU and a UDP-N-acetyl glucosamine-2-epimerase gene neuC in the other synthetic route of the ManNAc. According to the recombinant escherichia coli with high yield of N-acetylneuraminic acid, the yield of N-acetylneuraminic acid can reach 23.08 g / L under a shake flask fermentation condition; a two-stage batch feeding strategy is adopted, the yield of N-acetylneuraminic acid in a 5L fermentation tank reaches 71.25 g / L, the molar conversion rate of GlcNAc reaches up to 57.60%, and the method has the potential of industrial application.

A containing cavity is formed in an inner cavity of the left portion of a machine body, a connecting column is rotationally arranged on the right side of the top of the containing cavity, the upper portion of the outer wall of the connecting column is fixedly sleeved with a driven gear ring, and a servo motor is fixedly arranged on the left side of the bottom of the containing cavity; and an output shaft of the servo motor is rotationally connected to the top of the containing cavity. According to the numerical control turret punch press for aluminum veneer production, through mutual cooperation of a gas storage box, an L-shaped rod, a gas guide pipe and a through opening, along with vertical movement of a bearing column assembly and a punching head in the punching process, an inflation mechanism can be driven to work to inflate gas into the gas storage box at the same time, and along with continuous injection of the gas, the pressure in the gas storage box is gradually increased; and high-pressure gas is formed, in the process, sufficient supply of the gas is guaranteed, the blowing strength and effect are improved through pressurization, and effective blowing cleaning of the surface of the punching head is achieved.

The invention relates to the technical field of fermentation devices, in particular to an earthworm bio-organic fertilizer fermentation device and a processing method.The earthworm bio-organic fertilizer fermentation device comprises a mounting cylinder, the upper end of the mounting cylinder is rotationally connected with a cover plate, a water supplementing mechanism is mounted on one side of a motor at the upper end of the mounting cylinder, and a mixing mechanism is mounted at the position, close to the middle, of the inner side of the mounting cylinder; the lower end of the mounting barrel is fixedly connected with a fermentation barrel, the outer side of the fermentation barrel is rotationally connected with a material taking opening, the upper end of the fermentation barrel is provided with a material adding mechanism, the inner side of the fermentation barrel is provided with a second material collecting barrel, and the outer side of the fermentation barrel is provided with a gas distribution mechanism; the hose rotates by 360 degrees to output zymophyte to be mixed with an organic fertilizer, so that the fermentation effect is better, the water tank outputs a water source to wet and bond the organic fertilizer, the humidity is improved, the activity of microorganisms can be improved, and the contact area of oxygen and a fermentation material is increased.

The invention discloses a liquid slagging boiler with a modular combustion chamber and a peak regulation method, and belongs to the technical field of fire coal consumption reduction of thermal power generating units. According to the method, on the basis of a combustion chamber of an existing liquid slagging boiler, the combustion chamber is divided into four modular combustion chambers with the same size, an independent fuel nozzle and an independent draught fan are installed on the outer side of each modular combustion chamber, so that each modular combustion chamber can be independently used, and in the peak regulation process, according to the peak regulation requirement, the modular combustion chambers can be used independently; and determining the use number of independent combustion chambers. The partition screens and the modular combustion chambers in the boiler are of detachable and splicable structures, so that each modular combustion chamber can be detached from the liquid slagging boiler to be replaced and spliced. According to the boiler, operation of the combustion chamber module can be accurately controlled according to actual load requirements, energy consumption is effectively reduced under the low-load condition, and the combustion efficiency is improved; and when the load is increased, sufficient steam supply is ensured.

The embodiment of the invention provides a multi-oil-tank heating system and method. The system comprises a main oil tank, an integrated auxiliary oil tank, a replenishment oil tank, an engine and a control unit, heaters are arranged at the main liquid level sensor, the auxiliary liquid level sensor, the heatable coarse filter and the heatable fuel pipe; and the heaters, the bidirectional electric pump, the main liquid level sensor and the auxiliary liquid level sensor are connected to a control unit. When a vehicle is powered on, an environment temperature sensor in the control unit detects the environment temperature, and when the environment temperature is lower than a preset temperature threshold value, the control unit can control a coarse strainer bottom heater, an auxiliary liquid level sensor heater, a main liquid level sensor heater and a bottom communicating oil pipe heater to start heating; fuel oil in the main fuel tank and the integrated auxiliary fuel tank is heated, normal driving in the extremely cold area can be achieved through 0 # diesel oil, the use cost is reduced, a driver does not need to manually switch the fuel tanks in the extremely cold area, and the operation complexity of the driver under the extremely cold condition is reduced.

The invention relates to a control method and device for a waterway system of a water purifying and drinking machine, the waterway system of the water purifying and drinking machine, the water purifying and drinking machine, a computer readable storage medium and a computer program product. The waterway system of the water purifying and drinking machine comprises a purifying device, a flow adjusting device and a water outlet device, the water inlet end of the purification device is used for receiving raw water, and the water outlet end of the purification device is communicated with the water outlet device through the flow adjusting device. The control method of the waterway system comprises the steps that in the water production process of the purification device, pressure parameters of the waterway system are obtained; when it is determined that the water pressure of the waterway system is larger than a preset pressure threshold value according to the pressure parameters, whether a water taking stopping instruction is received or not is judged; and if the water taking stopping instruction is not received, the purification device is controlled to continuously produce water. By adopting the method, stable water outlet of the water outlet device can be improved in the water taking process of a user, and then the use stability of the water purifying and drinking machine is improved.

The invention relates to the technical field of preparation of electrocatalysts, in particular to a super-hydrophilic strong sulfur-phobic bifunctional catalyst as well as a preparation method and application thereof, comprising synthesis of a CoMoFe-LDF / NF hydroxide precursor, preparation of CoMo-Fe3Se4 / NF by hydrothermal selenylation and application of the catalyst in SOR and HER. The structure of the catalyst shows super-hydrophilic performance, wettability between an electrolyte and an electrode can be remarkably improved, hydrogen bubbles are promoted to be released from the surface of the electrode more easily, and therefore sufficient active site supply is guaranteed, and HER efficiency is greatly improved. In addition, the material also shows strong sulfur phobicity, can effectively avoid the deposition of sulfur element on the surface of the catalyst in the SOR process, and reduces the risk of catalyst deactivation. In conclusion, the novel catalyst not only has excellent electrocatalytic activity, but also shows wide application in hydrogen evolution reaction and sulfur ion oxidation reaction.

The invention discloses a construction method of genetically engineered bacteria for improving the yield of L-histidine, and belongs to the technical field of bioengineering. Escherichia coli is used as an original strain, and vitreoscilla hemoglobin genes are integrated and overexpressed on a genome of the escherichia coli, so that effective supply of oxygen and ATP is enhanced, and the yield of L-histidine is increased. The genetically engineered bacterium is used for producing the L-histidine by a fermentation method, and the yield of the L-histidine reaches 2.76 g / L at most after fermentation in a shake flask for 48 hours, and is increased by 52.49% compared with an original strain.

The invention discloses positive electrode lead paste for a deep-discharge high-cycle lead storage battery and a preparation method of the positive electrode lead paste, and belongs to the technical field of lead storage batteries. The porous carbon microbeads and the carbon whiskers are added and have electrical conductivity, so that the softening time of active substances is prolonged, the strength is improved, and the service life of the storage battery is prolonged; the nano white carbon black and the sodium carboxymethyl cellulose are both of a porous structure and are added into the active substance, so that the storage space of the electrolyte is increased, and the capacity and the discharge depth of the polar plate are improved. The four substances have a synergistic effect, so that the deep discharge capacity of the lead storage battery is increased, and the cycle life is prolonged (8%).

The invention relates to the technical field of galvanization, in particular to a plating bath device and method for hot-dip galvanized steel sheet production, which comprises a plating bath pot for galvanization treatment of a steel sheet material and a support, and further comprises a rust removal cleaning barrel, a rust removal cleaning barrel and a rust removal cleaning barrel, the derusting cleaning cylinder is arranged at the top of the support, located on the two sides of the steel plate material and used for derusting the steel plate material, a plurality of nozzles and brushes are arranged at the bottom of the derusting cleaning cylinder, and a driving assembly for driving the derusting cleaning cylinder to swing to achieve dynamic cleaning is constructed in the support; and the degreasing spraying shell is connected to one side of the rust removal cleaning barrel and used for spraying an organic solution to conduct degreasing treatment on the surface of the steel plate material, a liquid storage chamber storing a large amount of the organic solution is arranged below the degreasing spraying shell, and the liquid storage chamber is connected with the degreasing spraying shell through a pipeline to ensure continuous supply of the organic solution.

The invention relates to the technical field of cement production, and provides a cement production line recycling system which comprises a circulation gas conveying pipeline, a combustion conveying pipeline, an oxygen conveying pipeline and a methanol mixing pipeline which are connected through pipelines, and the combustion conveying pipeline and the methanol mixing pipeline both communicate with the circulation gas conveying pipeline; the circulating gas conveying pipeline is sequentially connected with a clinker sintering system, a first heat exchanger, a first SCR (Selective Catalytic Reduction) device, a booster fan, a dust collector, a circulating fan and a water removal device; the clinker sintering system is provided with a feeding end, a combustion end and an exhaust end, and carbon dioxide generated by sintering cement clinker is mixed into circulating gas; the circulating gas is conveyed to the water removal device from the exhaust end in sequence, and meanwhile, after the water removal device removes water from the circulating gas, the circulating gas is conveyed back to the clinker sintering system to form cyclic utilization of the circulating gas. The method has the effect of recycling resources. In addition, the invention further provides a cement production line recycling method.

The invention discloses an adjustable floor thickness controller and a construction method, and relates to the technical field of building construction. The adjustable floor thickness controller comprises a vertical supporting module. The vertical supporting module comprises a first plate body, a second plate body and an adjusting assembly. The adjusting assembly comprises an inserting rod, a sleeve and a locking mechanism; the sleeve is vertically and detachably connected with the first plate body; and the inserting rod is vertically and detachably connected with the second plate body. The vertical supporting assembly is simple in structure and reliable in function, the adjusting assembly can conveniently adjust the distance between the first plate body and the second plate body, so that the overall height of the vertical supporting assembly is adjusted to adapt to construction operation of floor slabs with different target thicknesses, product compatibility and adaptability are improved, product standardization is achieved, the production and manufacturing efficiency is improved, and the production cost is reduced. Materials are fully supplied, and the construction period is prevented from being delayed.

The invention belongs to the technical field of preparation of urolithin A, and particularly relates to a preparation method of urolithin A. The preparation method comprises the following steps: S1, by taking parachlorophenol and resorcinol as initial raw materials, carrying out coupling reaction under the catalytic action of sodium hydroxide and copper sulfate to obtain an intermediate 1; and S2, reacting the intermediate 1 with carbon dioxide under specific conditions under the action of a catalyst to obtain the product urolithin A. The synthesis process is simple and efficient, the used raw materials are easy to obtain and low in price, reagents can be recycled and reused, generation of three wastes can be greatly reduced, the green chemistry principle is met, and good development prospects are achieved. The method is an efficient, reliable and environment-friendly synthesis method of urolithin A, and is beneficial to industrial production.

This invention provides a writing tool that allows for easy selection of a method of use that suppresses handwriting defects such as blurring and skipped lines, and a method of use that produces handwriting including blurring. The writing tool comprises: a container body (2) for holding writing ink; a writing body (7) configured to close the opening (2c) of the container body; and a cap member (4) detachably attached to the opening and covering the writing body, allowing writing on the writing surface by allowing ink from the container body to seep out from the writing body. The container body has a bottom (2a), a body (2b) continuous with the bottom and rising upwards, and an opening (2c) continuous with the body and rising obliquely upwards. The angle between the axis (Ax1) of the container body orthogonal to the bottom surface and the axis (Ax2) of the opening passing through the center of the opening forms an obtuse angle.

A kind of yarn tube raw paper interlayer bonding strength enhancer and preparation method thereof, it is characterized in that, raw material includes the following weight fraction components:0.15-0.25 parts of hemicellulose, 0.15-0.25 parts of starch, 0.05-0.1 parts of cation etherification agent, 0.001-0.005 parts of polyaldehyde, 0.02-0.04 parts of basic substance, 0.02-0.04 parts of catalyst, 0.6-0.7 parts of water.The component structure of the enhancer contains a large number of natural polymer, after modification contains rich hydroxyl, aldehyde group, carboxyl, cation, can enhance the combination between fiber hydroxyl, improve the retention of spray glue in paper, so as to improve the interlayer bonding strength of paper, ring pressure strength, breaking, folding resistance and other dry strength, at the same time, it can also reduce the dependence on edible starch, reduce the food crisis.

The invention provides a silage fermentation facility for a high-latitude alpine region and a use method thereof, fermentation equipment comprises a plurality of fermentation bins connected in series, a bearing table is arranged at one end of the fermentation equipment, and a sunken feeding bin is arranged at the other end of the fermentation equipment; a first portal frame and a second portal frame are arranged on the fermentation equipment, the first portal frame and the second portal frame are in sliding connection with the fermentation equipment, a liftable pressing plate is arranged on the second portal frame, the pressing plate is used for pressing silage, a material making bin is arranged on the first portal frame, a smashing device is arranged in the material making bin, and a discharging opening is formed in the lower portion of the material making bin. Through the automatic movement of the first portal frame and the second portal frame, the crushing and discharging functions of the material preparation bin and the compaction operation of the compaction plate, the whole process automation from raw material treatment to compaction fermentation is realized, the working efficiency is greatly improved, and the labor intensity of workers is reduced.

The utility model provides a fermentation tank beneficial to improving the density of halophilic strains, belongs to the technical field of halophilic strain fermentation, and aims to solve the problems that the inner wall of the conventional fermentation tank is relatively smooth and the halophilic strains are inconvenient to adhere. Comprising a tank body; a control module is fixedly arranged at the top of the tank cover; a ventilation structure is fixedly arranged between the outer side of the tank body and the interior of the tank cover, a stirring assembly is rotationally arranged in the bottom side of the tank body, and an automatic pressure relief structure is fixedly arranged in the top side of the tank cover; by means of the annular array type attachment protrusions and the attachment grooves, a microstructure can be formed on the inner wall of the tank body, and attachment and growth of halophilic bacteria are facilitated; meanwhile, a ventilation structure and an oxygen sensor are utilized, so that sufficient supply of oxygen in the culture solution can be ensured; a fermentation environment capable of improving the density of halophilic bacteria is provided.

The utility model discloses an extrusion die for a 6082 aluminum alloy cylinder body with a small extrusion ratio and a large wall thickness, the hole wall of one side, far away from a core head, of each shunting hole is of a conical surface structure, the length of an upper die working tape and the length of a lower die working tape are 1.5-2 times of the maximum hole width of a die hole, the depth of a welding chamber is 1.5-1.7 times of the maximum hole width of the die hole, and the thickness of the welding chamber is 1.5-1.7 times of the maximum hole width of the die hole. The upper die working belt is composed of a plurality of cambered surface sections which are sequentially connected in the circumferential direction, sharp corner parts are formed at the connecting positions of the adjacent cambered surface sections, the peripheral face of the core head is sunken to form a circle of neck clearance cutters, the neck clearance cutters are located at the end, close to the upper die, of the upper die working belt, and the depths of the positions, corresponding to the cambered surface sections, of the neck clearance cutters are equal. And the depth, corresponding to the sharp corner part, of the neck clearance tool is 1-2 times of the depth, corresponding to the cambered surface section, of the neck clearance tool, so that the technical problems that the risk probability of poor welding is extremely high when 6082 aluminum alloy is adopted for extrusion forming of the aluminum alloy section for the cylinder body, and only an extremely low extrusion speed can be adopted for production in order to avoid the condition of pull cracks can be solved.

The utility model discloses a same side heat exchange hydrogen production system with air cooling and waste heat recovery system belongs to hydrogen production system technical field, including high pressure steam pipeline, high pressure steam pipeline one end is connected outside steam source, and the other end is connected gas mixer, anode entrance connects air heater, and air heater connects anode heat exchanger, and the first medium side one end of anode heat exchanger is connected air heater, and the other end is connected cathode cooler. Through the external supply water vapor, need not set up steam generator in the system, through the cathode tail gas, anode tail gas carries out two step preheating to air, reduces the load of air heater, and the heat of cathode tail gas reduces also can reduce the load of condenser after cathode tail gas passes two step heat exchange, part cathode tail gas is introduced into hydrogen production system again, can guarantee having hydrogen in mixed gas again, can introduce part water vapor, reduces the supply amount of external water vapor, has reduced energy loss as far as possible.

The utility model provides a high-precision automobile hub unit which comprises a hub support and a bearing body, an installation column is arranged on one side of the hub support, the bearing body is arranged on the installation column in a sleeved mode, a fixing valve is arranged on one side of the hub support, the fixing valve is arranged on the installation column in a sleeved mode, and the bearing body is located between the fixing valve and the hub support. An oil supply assembly is arranged on the hub support, the oil supply assembly is connected with the bearing body, a connecting piece is arranged on one side of the hub support, and the bearing body is sleeved with the connecting piece. According to the hub unit, the bearing body is arranged on the mounting column on the hub support in a sleeving mode, the oil supply assembly is installed on the hub support and connected with the bearing body through the connecting pipe, the effect of continuously supplying oil to the bearing body is achieved, and the situation that friction force of the bearing is increased due to insufficient lubrication can be avoided; the damage risk to the bearing is reduced, meanwhile, the situation that the hub unit slides slightly due to the fact that friction force becomes large can be prevented, and then the precision of the hub unit is powerfully guaranteed.

The present invention discloses a hydrogen and diesel dual-fuel generator set, including a chassis, an engine is arranged on the chassis, the engine is connected with a radiator and a brushless generator, a control box is arranged on the brushless generator, the engine includes a diesel feed system, a hydrogen intake system, an air intake system, an exhaust system and a control system, the hydrogen intake system and the air intake system are connected with the cylinder intake port of the engine, and the exhaust system is connected with the exhaust port of the cylinder of the engine. Hydrogen is used to effectively replace diesel fuel, reduce pollution, ensure sufficient fuel supply, and provide a new option for industrial power energy utilization. At the same time, due to the fast combustion speed of hydrogen, the mixed diesel fuel is more fully burned, the fuel utilization rate is improved, and carbon deposition is reduced. By setting a hydrogen intake rail, an embedded hydrogen injection pipe, a hydrogen electronically controlled injection valve and realizing direct injection of hydrogen into the cylinder, the hydrogen intake amount is automatically controlled.

The utility model relates to the technical field of urinary surgery nursing, and provides a flushing device for urinary surgery nursing, which comprises a flushing outer cylinder, a water volume adjusting assembly and a linear driving assembly, the water volume adjusting assembly is arranged at the position of the flushing outer cylinder, and the linear driving assembly is arranged at the top of the flushing outer cylinder; the water quantity adjusting assembly comprises first water spraying holes, a rotating handle, a rotating rod, a first fixing frame, a flushing inner cylinder and second water spraying holes, and the first water spraying holes are formed in the bottom and the outer wall ring face of the flushing outer cylinder; the linear driving assembly comprises a guide rod, a guide sleeve, a U-shaped frame, a guide shaft, a motor, a rotating roller and a wave groove. The utility model has the advantages of flexibility in water volume adjustment, convenience in design of the water inlet, enhanced stability and fixity, and high efficiency of the linear driving assembly. Due to the characteristics, the device is more suitable for urinary surgery nursing tasks, and the quality and efficiency of patient nursing are improved.

The invention relates to the technical field of grain and oil by-product high-value utilization and food functional ingredient preparation, in particular to a nitrogen-rich mesoporous carbon-based cholesterol adsorption ingredient as well as a preparation method and application thereof. According to the method, soybean meal and rice bran are taken as a carbon source and an endogenous nitrogen source, and urea or melamine is compounded as an exogenous nitrogen-rich precursor, so that an internal-external synergistic nitrogen-rich system is constructed; the method comprises the following steps: compounding a zinc chloride or potassium hydroxide chemical activator with a ferric chloride catalytic graphitizing agent to form a nitrogen-rich-catalytic synergistic conversion system; the method comprises the steps of raw material pretreatment, nitrogen-rich slurry preparation, catalytic activation precursor preparation and the like. The prepared carbon-based ingredient has a developed mesoporous structure and high-content alkaline nitrogen-containing functional groups, and is large in cholesterol adsorption capacity and high in selectivity, and the raw materials are grain and oil processing byproducts, so that the cost is low, and the carbon-based ingredient is green and environment-friendly; the preparation process has the advantages of controllable parameters and good repeatability, is suitable for industrial production, and provides a new technical path for the development of functional food ingredients for reducing blood fat.