56results about How to "Increase the charge factor" patented technology

The invention relates to a multifunctional biological solid fermentation tank. The main body structure of the fermentation tank is a horizontal propeller, and spiral auger propeller blades are installed below the tank bottom. An auger is directly communicated with steam for sterilizing form the bottom of the tank and communicated with air for cooling, a spray tube on the upper part of the tank body sprays bacterial liquid for inoculation and can also spray water mist for humidity regulation, and thus, uniform inoculation and humidity control can be realized. The unique tank body horizontal type propeller and the auger coordination system below the tank body are utilized, and the circular flowing and the thorough mixing of a solid material in the tank body during fermentation are realized by controlling the rotating speed and the rotating direction; stirring nonuniformity caused by using a motor to rotate forwards or backwards repeatedly is avoided, automatic material discharge can be realized after fermentation, and material discharge is clean and complete. The operations of sterilization, cooling, inoculation, fermentation, temperature control, humidity control, ventilation, vacuum drying and the like required by solid fermentation can all be completed in the biological solid fermentation tank. The biological solid fermentation tank has the advantages of hardly no bacterial contamination, small occupied space, high automation degree, labor saving, investment saving and the like.

The invention relates to a preparation method of rhamnolipid biological fermentation liquid. The method comprises the following steps: extracting and purifying Pseudomonas aeruginosa obtained from petroleum-contaminated soil, and obtaining Pseudomonas aeruginosa VTS-1 (Pseudomonas sp. -1) The preservation number is: CGMCC2200, and the specific fermentation and cultivation steps are as follows: A. Strain VTS-1 is cultured in shake flasks; B. Primary fermentation cultivation; C. Secondary fermentation cultivation; D. Fermentation cultivation. The process of the method has the advantages of high yield, high efficiency, high loading coefficient, short fermentation cycle, simple process, reduced overall product cost, and is completely suitable for industrial production, and has played a role in the promotion and large-scale application of rhamnolipid biosurfactants. important role.

This invention relates to a variable stroke engine, in addition to its working method, which belongs to vehicle engine technique field. The engine comprises six cylinders, EGR, exhaust-gas turbocharger system, four strokes discharge distributing valve, exhaust duct, bent axle piston and electrical controlling unit. when working, it needs to decide whether the two stroke cylinders join to work with the jar cutting technique according to different power, making the engine switch in different working condition; the six cylinders will bedding-in work through each inlet distribution valve to increase pressure and power output. Said invention can be used in transporting vehicle such as tank armored vehicle, machineshop truck needs to provide large power output and so on.

The invention provides an industrialized preparation method of a lipopeptide biosurfactant and relates to a production method of a biosurfactant which is prepared from bacillus subtilis ACCC01430 through fermentation. The method comprises the following steps: slope solid bacillus subtilis strains are joined into a shaking bottle for cultivation at the temperature of 35+ / -2 DEG C, and are cultured by shaking at 120 revolutions per minute for 12-16 hours so as to obtain shaking bottle strains; the prepared shaking bottle strains are joined into a primary fermentation tank provided with a culture medium to obtain a primary fermentation strain; the primary fermentation strain is joined into a secondary fermentation tank provided with a culture medium to prepare a secondary fermentation strain; the secondary fermentation strain is joined into a third-level fermentation tank provided with a culture medium to be fermented for 24-26 hours, and then the lipopeptide biosurfactant is obtained. In the industrialized preparation method of the lipopeptide biosurfactant disclosed by the invention, the content of lipopeptid achieves 7-10%g / L, an industrialized production experiment is successful, the fermentation cycle is shortened to 48 hours, and the production cost is greatly reduced. According to the invention, industrially produced lipopenic fermentation liquor is applied on site firstly, and is injected into an underground oil layer, so water is smoothly injected into the original blocks in which water is hard to be injected, the recovery ratio of crude oil is increased by 5-12%, and the efficiency is high.

The invention discloses an air bag agitation-type solid-state fermentation method and a device thereof. The air bag type solid-state fermentation method disclosed by the invention is characterized in that a closed tank body is internally provided with an air bag which can inflate and deflate, materials are pushed to reciprocate in the tank body through the form changes caused by the inflation andthe deflation of the air bag, and at the same time, the interphase transmission process is strengthened through the changes of pressure in tank body, which is caused by the expansion and contraction of the air bag. The method strengthens the mass transport process of the solid-state fermentation through the gentle stirring and normal force, at the same time, avoids the hurt of shear force in the operation of a general dynamic solid-state fermentation reactor to microorganism. The invention not only can be used for the aerobic solid state fermentation process but also can be used for an anaerobic fermentation solid-state fermentation system, has simple structure and wide application range, and provides a new technical platform for the fermentation industry.

The invention relates to a continuously adjustable mechanical hydraulic valve lift device which belongs to the technical field of internal combustion engine. The continuously adjustable mechanical hydraulic valve lift device comprises a valve cam, a valve, a valve spring, a plunger piston adjusting arm, a plunger piston spring base, a tappet plunger piston, a plunger piston spring, a tappet plunger barrel, a retaining nut, a low pressure oil cylinder, a first gasket, a second gasket, an executing plunger piston and an executing plunger barrel. The lift range is decided by the relative position of the tappet plunger piston and a first oil hole at the tappet plunger barrel. The symmetrical plane of the plunger piston adjusting arm is coincident with the symmetrical plane of a diclinic section at the head of the tappet plunger piston, and the symmetrical plane of the plunger piston adjusting arm along the axial line is considered as a reference plane. When maximum lift is required, the plunger piston adjusting arm is rotated to ensure that the reference plane is parallel with the axial line of the first oil hole. When minimum lift is required, the plunger piston adjusting arm is rotated to ensure that the reference plane is vertical to the axial line of the first oil hole. When medium lift is required, the plunger piston adjusting arm is rotated to ensure that the reference plane and the axial line of the first oil hole form any angle between 0 to 90 degrees. The device has simple structure and can adjust valve lift, valve right timing and duration continuously.

The invention relates to a process for preparing a viable bacillus megaterium preparation. According to the process, after bacillus megaterium undergoes first-stage germ amplification culture and second-stage germ amplification culture, the bacillus megaterium is inoculated to a fermentation culture medium for culture, and the number and conversion ratio of bacilli is increased through feeding a supplement carbon source during fermentation, so that the unit yield is increased remarkably, and the unit cost is reduced; at the end of fermentation, fermentation liquor is concentrated with a vacuum film concentrator, so that soluble synergistic substances, growth promoting substances and bacteriostatic active substances can be effectively recovered from the fermentation liquor; the concentrated fermentation liquor is subjected to drying and granulating by multi-level low-temperature spray-fluidized drying equipment, granules are subjected to sorting, fine powder gathered by a cyclone separator returns and is granulated again, and then, a bacillus megaterium product, of which the CFU of powder per gram is not less than 8.0*10<10>, is obtained; exhaust gas is treated and is discharged after reaching standard. The process has the advantages that effective substances in the fermentation liquor can be reserved to the maximum, the quality of the product is high, the equipment utilization ratio is high, the retention of biological activity is relatively good, waste gas and waste water are discharged after reaching standard, and large-scale industrial production can be achieved.

The invention discloses a process for improving fermentation conversion rate of an enzyme preparation, which comprises steps of strain culture of enzyme-producing strains, aerobic fermentation culture and extraction and purification of the enzyme preparation, wherein oxygen-rich sterile air is introduced in a fermentation tank culture process of the aerobic fermentation culture step, or oxygen-rich sterile air is introduced in a seed tank culture process of the strain culture step and a fermentation tank culture process of the aerobic fermentation culture step. When the process meets the oxygen requirement of the strains, the process can improve the activity of the fermentation enzyme by over 10 percent, shorten the fermentation period by about 20 percent under the condition of smaller ventilation ratio, increase the charging coefficient of a reaction tank at the same time, improve the yield of the enzyme preparation by about 50 percent, and save the power consumption of ton product under the equal condition by about 40 percent compared with the power consumption without adopting the oxygen-rich sterile air so as to greatly improve the utilization rate of energy.

The invention relates to a process for preparing a viable bacillus licheniformis preparation. According to the process, after bacillus licheniformis undergoes first-stage germ amplification culture and second-stage germ amplification culture, the bacillus licheniformis is inoculated to a fermentation culture medium for culture, and the number and conversion ratio of bacilli is increased through feeding a supplement carbon source during fermentation, so that the unit yield is increased remarkably, and the unit cost is reduced; at the end of fermentation, fermentation liquor is concentrated with a vacuum film concentrator, so that soluble synergistic substances, growth promoting substances and bacteriostatic active substances can be effectively recovered from the fermentation liquor; the concentrated fermentation liquor is subjected to drying and granulating by multi-level low-temperature spray-fluidized drying equipment, granules are subjected to sorting, fine powder gathered by a cyclone separator returns and is granulated again, and then, a bacillus licheniformis product, of which the CFU of powder per gram is not less than 2.0*10<11>, is obtained; exhaust gas is treated and is discharged after reaching standard. The process has the advantages that effective substances in the fermentation liquor can be reserved to the maximum, the quality of the product is high, the equipment utilization ratio is high, the retention of biological activity is relatively good, waste gas and waste water are discharged after reaching standard, and large-scale industrial production can be achieved.

The invention relates to the technical field of internal combustion engines, in particular to a method for restraining the supercharge gasoline engine super detonation through double-fuel injection. According to the method for restraining the supercharge gasoline engine super detonation through double-fuel injection, gasoline is injected in an intake channel of an engine, alcohol fuel is injected in a combustion chamber one or more times, the alcohol fuel with high latent heat of vaporization is injected in intake stroke and can lower the intake temperature, the charging quantity coefficient is increased, and the dynamic property is improved; due to the compression stroke injection, the temperature of mixed gas at a compression terminal can be reduced, and premature combustion is effectively restrained; injection is conducted in the combustion process, fuel layered mixed gas can be formed, and the spreading route of detonation waves is cut off; the super detonation of a supercharge small-displacement gasoline engine can be effectively restrained through one or more times of injection, and an important support is provided for energy conservation and emission reduction of the engine. Meanwhile, only a set of intake channel injection nozzle needs to be additionally added to an existing supercharge gasoline engine, cost is low, upgrading of an existing engine product technology is forcefully supported, and the industrial prospect is good.

The invention relates to the technical field of tobacco processing, and discloses a new system suitable for solid-state fermentation of tobacco stems and a corresponding solid-state tobacco stem fermentation method. Specifically, the tobacco stems are added in a drum tank, a certain quantity of hot water is added in the drum tank while the drum tank rotates, and the tobacco stems absorb water for 30 minutes; after being cooled down to room temperature, the tobacco stems containing water are added in another drum tank, and a certain quantity of microbial seed liquid is added into the other drum tank to realize microbial inoculation while the other drum tank rotate; and after inoculation, the tobacco stems are fed in cultivating frames, the cultivating frames are stacked on a movable storage cage in a certain mode so as to vibrate and increase feeding rate, the storage cage is placed in a fermentation chamber or a fermentation container to realize solid-state fermentation, ventilation is carried out according to needs, and after fermentation is finished, microbial spore is sucked. The new system suitable for solid-state fermentation of tobacco stems and the corresponding solid-state tobacco stem fermentation method can increase mechanical level and automatic level of a production process of solid-state fermentation of the tobacco stems, increase spatial feeding coefficients of solid-state fermentation materials, and accordingly improve production efficiency of solid-state fermentation of the tobacco stems.

The invention discloses a gasoline engine EGR stratified charge system based on a flow guiding plate, and belongs to the technical field of engines. An exhaust pipe is fixedly connected with an intake manifold through a bypass pipe, an EGR valve, an EGR cooler and an EGR loop. An airflow cavity in the air inlet side of a cylinder cover part is respectively and correspondingly connected with an airflow cavity of an air inlet diverting cavity part, an air inlet of the cylinder cover part corresponds to branch pipes of the air inlet diverting cavity part, a throttle valve is fixedly connected with an intake manifold hole through the intake manifold, and the exhaust branch pipes of the exhaust pipe are correspondingly connected with four exhaust ways of the cylinder cover part respectively. Waste gas and fresh air can be prevented from being early mixed outside a combustion chamber and can also be prevented from being accumulated and mixed when an air inlet door is closed, the equipressure air intake of the fresh air and the pressure can be achieved, the mixed degree of the fresh air and the waste gas can be reduced, the load control of an engine can be achieved, the circulation thermal efficiency of a gasoline engine is improved, high EGR efficiency can be achieved, and the combustion economical efficiency of the gasoline engine is effectively improved.

The invention relates to an air-cylinder-exterior cold water and an air-cylinder-interior hot water integrated double injection diesel engine structure. The air-cylinder-exterior cold water and the air-cylinder-interior hot water integrated double injection diesel engine structure includes a diesel engine body, an inlet manifold, an exhaust manifold, an air-cylinder-interior sprinkler and an oil atomizer which are arranged in the diesel engine body, a high pressure water pump unit which communicates with the air-cylinder-interior sprinkler, an air-cylinder-exterior sprinkler which is arrangedin the inlet manifold, a low pressure water pump unit which communicates with the air-cylinder-exterior sprinkler, a heat exchanger which is arranged between the low pressure water pump unit and the high pressure water pump unit, and an electronic controller which is electrically connected with the oil atomizer, the air-cylinder-interior sprinkler, the high pressure water pump unit, the air-cylinder-exterior sprinkler and the low pressure water pump unit. Compared with the prior art, according to the air-cylinder-exterior cold water and the air-cylinder-interior hot water integrated double injection diesel engine structure, hot water sprayed in the air cylinder is rapidly vaporized and the energy is absorbed, the temperature in the air cylinder nearby the combustion top dead center can belowered, and the emission of NOx can be reduced; cold water is sprayed to the inlet manifold at the same time, heat energy is absorbed through evaporation of water, the gas temperature entering the air cylinder is decreased, and the air inlet density is increased; and the charging efficiency is increased, the output per liter of the diesel engine is improved, and the dynamic property is improved.

The invention relates to a multifunctional solid state fermentation reactor. The reactor comprises a main tank, an auxiliary system and a control center, wherein a tank cover is fixed at the upper port of the main tank through a flange; a cylinder port is fixed on the top of the tank cover; the upper end face of the cylinder port is provided with four ports; pipelines connected with the four ports are connected with a gas purification module, a pressure meter and a gas analysis module through valves; the tail end of the pipeline of a first port is connected with a four-way pipe; and one port of the four-way pipe is connected with the main tank through a gas pipeline, and the formed gas forms a loop from a fourth port to a fifth port; and the auxiliary system consists of an aseptic inoculation part, a circulating gas part and a foreign gas part. The reactor can realize a closed solid state fermentation process without mixed bacterial pollution or pressure pulsation, can be applied to the process of quickly decomposing solid organic matters, and can monitor various parameters in the fermentation process, and a method for extracting a required fermentation product in the reactor in situ is provided.

The invention provides a mini solid state polycondensation device and a using method thereof applicable to labs. The device is characterized by comprising a tank body, a feeding-discharge port and a heating jacket on the tank body, two mixer shafts and mixing arms thereof, a planetary gear drive system, and a vacuumed opening, a nitrogen inlet, a biphenyl inlet and a biphenyl outlet connected with the tank body and the jacket. Before the operation of equipment, biphenyl enters into the jacket of the equipment and is heated to a certain temperature; then polyester chips enter the equipment through a charging opening and the equipment begins to operate. The device of the invention has compact structure and low construction cost, has an equipment feeding coefficient over 65 percent and is applicable to the technological development of factories or the scientific research of scientific research institutions.

The invention relates to a natural gas engine structure for mixed double-injection of cylinder outer cold water and in-cylinder hot water. The natural gas engine structure comprises a natural gas engine body, an air inlet manifold, an exhaust manifold, a natural gas injector, a spark plug, an in-cylinder water sprayer, a high-pressure water pump unit, a cylinder outer water sprayer, a low-pressurewater pump unit, a heat exchanger and a electronic controller; and the in-cylinder water sprayer is arranged in the natural gas engine body, the high-pressure water pump unit communicates with the in-cylinder water sprayer, the cylinder outer water sprayer is arranged in the air inlet manifold, the low-pressure water pump unit communicates with the cylinder outer water sprayer and the electroniccontroller is electrically connected with the natural gas injector, the spark plug, the in-cylinder water sprayer, the high-pressure water pump unit, the cylinder outer water sprayer and the low-pressure water pump unit. Compared with the prior art, the natural gas engine structure has the advantages that hot water sprayed in a cylinder is used for rapidly vaporizing to absorb heat, so that the temperature in the part, close to a combustion top dead center, of the cylinder is reduced, and the generation of knocking is inhibited; meanwhile, the heat for heating the water comes from recovering tail gas energy by a exchanger, so that the working medium in the combustion process is increased, the heat loss is reduced, and the heat efficiency of the natural gas engine is improved.

The invention relates to a cylinder interior and exterior cold water mixing double spraying natural gas engine structure. The cylinder interior and exterior cold water mixing double spraying natural gas engine structure comprises a natural gas engine body, an inlet manifold, an exhaust manifold, a natural gas injector, a sparking plug, a cylinder interior water spraying device, a high-pressure water pump unit, a cylinder exterior water spraying device, a low-pressure water pump unit and an electronic controller, wherein the sparking plug and the cylinder interior water spraying device are arranged in the natural gas engine body; the high-pressure water pump unit is connected to the cylinder interior water spraying device; the cylinder exterior water spraying device is arranged in the inletmanifold; the low-pressure water pump unit is connected to the cylinder exterior water spraying device; and the electronic controller is electrically connected to the natural gas injector, the sparking plug, the cylinder interior water spraying device, the high-pressure water pump unit, the cylinder exterior water spraying device and the low-pressure water pump unit. Compared with the prior art,the cylinder interior and exterior cold water mixing double spraying natural gas engine structure has the beneficial effects that the purposes of improving a power performance, economical efficiency and an emission performance can be achieved simultaneously by arranging the two water spraying devices in a cylinder and on the inlet manifold; the heat efficiency and power per liter of a natural gasengine can be improved; the emission of nitrogen oxide is reduced; and the engine knocking can be effectively inhibited.

The present invention discloses a four-stroke piston internal combustion engine. It includes cylinder body, cylinder cap, piston and connecting rod. Said invention also provides their connection relationship and the working principle of said four-stroke piston internal combustion engine. Said invention can obtain three effects of raising engine powder, improving smoke-discharging condition and saving fuel.

The invention relates to a cylinder inside and outside cold water mixed double injection type diesel engine structure. The structure comprises a diesel engine body, an inlet manifold, an exhaust manifold, an oil sprayer, a cylinder inside water sprayer arranged in the diesel engine body, a high-pressure water pump unit communicating with the cylinder inside water sprayer, a cylinder outside watersprayer arranged in the inlet manifold, a low-pressure water pump unit communicating with the cylinder outside water sprayer, and an electronic controller which is electrically connected with the oilsprayer, the cylinder inside water sprayer, the high-pressure water pump unit, the cylinder outside water sprayer and the the low-pressure water pump unit. According to the structure, compared with the prior art, the cold water sprayed inside a cylinder is used to absorb the heat, the temperature of the part, close to the top dead center, in the cylinder is reduced, the emission of NOx is reduced,meanwhile, as an additional working medium, the heat efficiency of the diesel engine is remarkably improved; and in addition, the water is sprayed in the inlet manifold, the heat is absorbed by usingevaporation of the water, the temperature of the gas to be fed into the air cylinder is reduced, the gas inlet density is increased, the volumetric efficiency is increased, the volume power of the diesel engine is improved, and the power performance is improved.

This invention relates to a variable stroke engine, in addition to its working method, which belongs to vehicle engine technique field. The engine comprises six cylinders, EGR, exhaust-gas turbocharger system, four strokes discharge distributing valve, exhaust duct, bent axle piston and electrical controlling unit. when working, it needs to decide whether the two stroke cylinders join to work with the jar cutting technique according to different power, making the engine switch in different working condition; the six cylinders will bedding-in work through each inlet distribution valve to increase pressure and power output. Said invention can be used in transporting vehicle such as tank armored vehicle, machineshop truck needs to provide large power output and so on.

The invention relates to a preparation method for rhamnolipid bio-fermentation fluid. The preparation method comprises the steps that: aeruginosa pseudomonas is produced by materials extracted from the soil which is contaminated by petroleum, separated and purified; the aeruginosa pseudomonas is mutated by nitroso guanidine, so as to obtain the aeruginosa pseudomonas VTS-1(Pseudomonas sp.VTS-1) with the preservation number: CGMCC2200. The fermentation culture has the steps that: A. the stain VTS-1 is inoculated into a shake flask to be cultured; B. a first grade fermenting culture is done; C.a second grade fermenting culture is done; D. the fermenting culture is done. The technique has the advantages of high yielding, high efficiency and charging coefficient, short fermentation period and simple technique, leading the product comprehensive cost to be lowered and being fully suitable for industrialized production and having great contribution to popularization and large-scale application of rhamnolipid bio surfactant.

The invention relates to a cylinder exterior cold water and cylinder interior hot water mixing double spraying gasoline engine structure. The cylinder exterior cold water and cylinder interior hot water mixing double spraying gasoline engine structure comprises a gasoline engine body, an inlet manifold, an exhaust manifold, a gasoline injector, a sparking plug, a cylinder interior water spraying device, a high-pressure water pump unit, a cylinder exterior water spraying device, a low-pressure water pump unit, a heat exchanger and an electronic controller, wherein the cylinder interior water spraying device is arranged in the gasoline engine body; the high-pressure water pump unit is connected to the cylinder interior water spraying device; the cylinder exterior water spraying device is arranged in the inlet manifold; the low-pressure water pump unit is connected to the cylinder exterior water spraying device; and the electronic controller is electrically connected to the gasoline injector, the sparking plug, the cylinder interior water spraying device, the high-pressure water pump unit, the cylinder exterior water spraying device and the low-pressure water pump unit. Compared withthe prior art, the cylinder exterior cold water and cylinder interior hot water mixing double spraying gasoline engine structure has the beneficial effects that heat is absorbed by utilizing the rapidvaporization of hot water sprayed into a cylinder; the temperature of the cylinder interior nearby a burning top dead center is reduced; the generation of knockings and super knockings during low speed and heavy duty operations is inhibited; meanwhile, the heat for heating water comes from the energy of tail gases recycled by the heat exchanger; the improvement of working mediums for applying work in a burning process is realized; the loss of heat is reduced; and the heat efficiency of the gasoline engine is improved.

The invention relates to a cylinder interior and exterior cold water mixing dual-spraying gasoline engine structure which comprises a gasoline engine body, a gas inlet manifold, a gas exhaust manifold, an oil sprayer, a sparking plug, a cylinder interior water sprayer, a high-pressure water pump unit communicating with the cylinder interior water sprayer, a cylinder exterior water sprayer arrangedin the gas inlet manifold, a lower-pressure water pump unit communicating with the cylinder exterior water sprayer, and an electronic controller, wherein the gas inlet manifold and the gas exhaust manifold are arranged on the gasoline engine body, and the sparking plug and the cylinder interior water sprayer are arranged in the gasoline engine body. Compared with the prior art, cold water sprayedinto a cylinder is utilized to absorb heat, the temperature, nearby the burning upper dead center, in the cylinder is decreased, the knocking trend is inhibited, and meanwhile, the cold water servesas an extra working medium, so that the heat efficiency of a gasoline engine is improved, and fuel economy and emission performance are improved; and water is sprayed in the gas inlet manifold, heat is absorbed through evaporation of the water, the temperature of gas entering the air cylinder is decreased, the gas inlet density is increased, charging coefficients are increased, thus the power perliter of the gasoline engine is improved, and power performance is improved.

The invention belongs to the related technical field of internal combustion engines, and particularly discloses an adiabatic internal combustion engine combustion system based on an adiabatic combustion chamber and a Miller cycle. According to the system, through combination of an adiabatic cylinder and the Miller cycle, the reliable operation of the internal combustion engine is ensured, and the overall heat efficiency of the internal combustion engine is improved. The system comprises the adiabatic cylinder and a common cylinder, the structure of the adiabatic cylinder is the same as that of the common cylinder, and the inner surface of a combustion chamber of the common cylinder is coated with a heat insulation coating used for reducing heat dissipation loss in the combustion chamber; A heat dissipation air channel is arranged between an exhaust channel of the adiabatic cylinder and an air inlet channel of the common cylinder, and used for connecting the adiabatic cylinder with the common cylinder and introducing excess air of the adiabatic cylinder into a common combustion chamber through secondary scavenging of an exhaust valve under the large-load working condition, and the abnormal combustion trend of the adiabatic cylinder is reduced; and the charging coefficient of the common combustion chamber is increased. The heat efficiency of the internal combustion engine is improved, and the problems that the insulating coating is prone to falling off, and the cylinder inner wall temperature is too high are solved.

The invention relates to a process for preparing a viable bacillus firmus preparation. According to the process, after bacillus firmus undergoes first-stage germ amplification culture and second-stage germ amplification culture, the bacillus firmus is inoculated to a fermentation culture medium for culture, and the number and conversion ratio of bacilli is increased through feeding a supplement carbon source during fermentation, so that the unit yield is increased remarkably, and the unit cost is reduced; at the end of fermentation, fermentation liquor is concentrated with a vacuum film concentrator, so that soluble synergistic substances, growth promoting substances and bacteriostatic active substances can be effectively recovered from the fermentation liquor; the concentrated fermentation liquor is subjected to drying and granulating by multi-level low-temperature spray-fluidized drying equipment, granules are subjected to sorting, fine powder gathered by a cyclone separator returns and is granulated again, and then, a bacillus firmus product, of which the CFU of powder per gram is not less than 1.0*10<11>, is obtained; exhaust gas is treated and is discharged after reaching standard. The process has the advantages that effective substances in the fermentation liquor can be reserved to the maximum, the quality of the product is high, the equipment utilization ratio is high, the retention of biological activity is relatively good, waste gas and waste water are discharged after reaching standard, and large-scale industrial production can be achieved.

The invention discloses a modified structure of an S495 diesel engine air inlet pipe, and belongs to the technical field of internal combustion engines. The modified structure of the S495 diesel engine air inlet pipe comprises a diesel engine body, an air inlet main pipe, and an air inlet branch pipe, wherein the air inlet main pipe is communicated with the diesel engine body through the air inlet branch pipe, an air inlet is formed in the diesel engine body, the inner diameter of a pipe opening of the air inlet branch pipe is 10-20 mm larger than the aperture of the air inlet in the diesel engine body, and the end of the air inlet branch pipe is in arc transition and then matched with the aperture of the air inlet of the diesel engine body. The modified structure of the S495 diesel engine air inlet pipe can expand the flow area of air flow in an air inlet pipeline, can reduce flow loss and flow resistance, and is reliable in work, obvious in effect and long in service life.

The invention relates to a preparation process of a live bacillus mucilaginosus preparation. The preparation process comprises the steps that bacillus mucilaginosus is inoculated into a fermentation medium to be cultured after being subjected to primary and secondary seed enlarged culture; the quantity and conversion rate of bacillus are increased through fed-batch of a carbon source in the fermentation process, thus obviously increasing the unit yield and reducing the unit cost; after fermentation is completed, the fermentation liquor is concentrated by using a vacuum film concentrator and the soluble synergistic substances, growth-stimulated substances and bacteriostatic active substances in the fermentation liquor can be effectively recovered; the concentrated fermentation liquor is dried and granulated by multistage low-temperature spray fluidized drying equipment, the granules are sorted and the fine powder is trapped by a cyclone separator and returns to be re-granulated, thus obtaining the bacillus mucilaginosus product, each gram of the powder of which has not less than 2.0*10<10> of CFU (colony-forming units); the tail gas is treated and is discharged up to the standard. The preparation process has the advantages that the active substances in the fermentation liquor can be furthest retained; the product quality and the equipment utilization rate are high; the biological activity is better maintained; the waste gas and the wastewater are discharged up to the standard; the preparation process can be used for large-scale industrial production.

The invention provides an industrialized preparation method of a lipopeptide biosurfactant and relates to a production method of a biosurfactant which is prepared from bacillus subtilis ACCC01430 through fermentation. The method comprises the following steps: slope solid bacillus subtilis strains are joined into a shaking bottle for cultivation at the temperature of 35+ / -2 DEG C, and are cultured by shaking at 120 revolutions per minute for 12-16 hours so as to obtain shaking bottle strains; the prepared shaking bottle strains are joined into a primary fermentation tank provided with a culture medium to obtain a primary fermentation strain; the primary fermentation strain is joined into a secondary fermentation tank provided with a culture medium to prepare a secondary fermentation strain; the secondary fermentation strain is joined into a third-level fermentation tank provided with a culture medium to be fermented for 24-26 hours, and then the lipopeptide biosurfactant is obtained. In the industrialized preparation method of the lipopeptide biosurfactant disclosed by the invention, the content of lipopeptid achieves 7-10%g / L, an industrialized production experiment is successful, the fermentation cycle is shortened to 48 hours, and the production cost is greatly reduced. According to the invention, industrially produced lipopenic fermentation liquor is applied on site firstly, and is injected into an underground oil layer, so water is smoothly injected into the original blocks in which water is hard to be injected, the recovery ratio of crude oil is increased by 5-12%, and the efficiency is high.

The invention relates to a multifunctional solid state fermentation reactor. The reactor comprises a main tank, an auxiliary system and a control center, wherein a tank cover is fixed at the upper port of the main tank through a flange; a cylinder port is fixed on the top of the tank cover; the upper end face of the cylinder port is provided with four ports; pipelines connected with the four ports are connected with a gas purification module, a pressure meter and a gas analysis module through valves; the tail end of the pipeline of a first port is connected with a four-way pipe; and one port of the four-way pipe is connected with the main tank through a gas pipeline, and the formed gas forms a loop from a fourth port to a fifth port; and the auxiliary system consists of an aseptic inoculation part, a circulating gas part and a foreign gas part. The reactor can realize a closed solid state fermentation process without mixed bacterial pollution or pressure pulsation, can be applied to the process of quickly decomposing solid organic matters, and can monitor various parameters in the fermentation process, and a method for extracting a required fermentation product in the reactor in situ is provided.