Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

31 results about "Burning tissue" patented technology

Dual-fuel engine adopting main and auxiliary oil injectors and manifolds for multiple times of spraying, and combustion organization method of dual-fuel engine

The invention belongs to the technical field of combustion of internal combustion engines, and particularly relates to a dual-fuel engine adopting main and auxiliary oil injectors and manifolds for multiple times of spraying, and a combustion organization method of the dual-fuel engine. The dual-fuel engine comprises a piston, an air cylinder sleeve, an air cylinder cover, the main oil injector, the auxiliary oil injector, a manifold low-pressure gas jetting device and the like; the main oil injector is mounted at the center of the air cylinder cover, and the diesel injection ratio during thelow load can be controlled by changing the oil spraying pulse width of the main oil injector; the auxiliary oil injector is obliquely mounted on the air cylinder cover, diesel micro-jet is conducted during the middle and high load, and natural gas is ignited after diesel nearby a top dead center is self-ignited; and a manifold low-pressure gas jetting valve is mounted on the gas inlet manifold ofeach cylinder, during the middle and high load, the number of times of jetting and the timing of the low-pressure gas jetting valves are controlled, and thus reasonable mixed gas concentration distribution is formed in the cylinders. According to the dual-fuel engine, ignition stability under different working conditions is ensured through diesel ignition, and different oil and gas jetting strategies are adopted under the different working conditions, so that reasonable oil and gas distribution is achieved in the cylinders to achieve the good combustion effect, and thus the economical efficiency and emission performance of the engine are improved.
Owner:HARBIN ENG UNIV

Combustion organization method of methanol/alcohol hydrogen fuel internal combustion engine and application thereof

The invention discloses a combustion organization method of a methanol/alcohol hydrogen fuel internal combustion engine and application thereof. The combustion organization method comprises the stepsthat part methanol fuel of methanol fuel of tail gas waste heat is catalytically reformed or pyrolyzed on line is used for preparing alcohol hydrogen, and the main component of the alcohol hydrogen ishydrogen; part of the prepared alcohol hydrogen is supplied to an ignition chamber, and hydrogen-enriched mixed gas is formed; and ignition is achieved through a spark plug, a high-energy turbulent flame jet ignition source is formed, and a homogeneous thin mixed gas, formed through methanol and alcohol hydrogen jetted from interior of a gas inlet channel or a cylinder, in the cylinder is ignited. According to the invention, part of methanol fuel is converted into the alcohol hydrogen, the combustion organization method is adopted and is applied to the internal combustion engine, ignition reliability can be improved, the in-cylinder combustion process is accelerated, the antiknock property is improved, and the internal combustion engine adapts to higher compression ratios, so that thermalefficiency of the engine is improved, and hazard emission of nitrogen oxides, particles and the like is reduced. A modification experiment on a diesel engine of which the cylinder diameter is 210 mmshows that thermal efficiency is improved by 4%, emission of nitrogen oxides is reduced by 85%, and emission of particles is reduced by 95%.
Owner:JIANGSU UNIV +1

Natural gas engine combustion organization method adopting manifold multiple-injection, pre-combustion chamber low-pressure gas supply and diesel oil micro-jetting ignition

ActiveCN109184982AGuaranteed ignition stabilityImprove misfireInternal combustion piston enginesFuel injection apparatusMultiple injectionBurning tissue
The invention aims at providing a natural gas engine combustion organization method adopting manifold multiple-injection, pre-combustion chamber low-pressure gas supply and diesel oil micro-jetting ignition. A low-pressure air spraying valve is arranged on each cylinder air inlet manifold, under different stations, the jetting frequency and timing of the low-pressure air spraying valve are controlled, and therefore natural gas forms different degrees of concentration gradient distributions in a cylinder; a one-way air supply valve is arranged on the top of a pre-combustion chamber, a suction stroke supplies air to the pre-combustion chamber, an oil injector is arranged above the right of the pre-combustion chamber in an inclined manner, a compressor stroke does not spray the micro amount of diesel oil to the pre-combustion chamber, the diesel oil is subjected to spontaneous combustion to ignite the mixed air in the diesel oil, and high-temperature gas is injected into a main combustionchamber to ignite the mixed air in the cylinder. Through adjusting of the air supply pressure of a one-way valve, the amount of natural gas in the pre-combustion chamber is adjusted, the ignition stability under different stations is ensured, through manifold multiple-injection, in-cylinder lean mixture concentration layering and rapid combustion can be achieved, and the economy and emission of the engine can be improved.
Owner:HARBIN ENG UNIV

Tiny oil ignition whirlwind coal dust burner suitable for meager coal and anthracite coal

InactiveCN101220951AHigh temperature pyrolysisRealize the recovery of volatile matterPulverulent fuel combustion burnersBurning tissueCombustor
The invention discloses a micro-oil ignition vortex coal-powder burner used for burning lean coal and blind coal. The invention comprises a vortex burner cylinder made of refractory materials and a guide spiral casing which are connected in series, and the central axes of the two parts overlap with each other. The micro-oil ignition vortex coal-powder burner has the advantages that in the ignition process by using an efficient and big-power gasifying oil gun, the high temperature flame of the oil gun rotationally goes ahead along the tangential direction in the burner cylinder and the coal powder is introduced axially for carrying out vortex burning; a high temperature zone is formed in the burner cylinder so as to realize high temperature splitting and reforging of coal powder volatiles and the thorough burning rate of lean coal can be enhanced; the energy of the high temperature oil flame is collectively released in the burner cylinder so as to directly raise the energy and temperature level of an ignition-unit volume; the burner is beneficial to the heat exchanging of the high temperature off-gas and the coal powder so as to accelerate the firing of coal powder; the burner has low resistance and can be taken as a main burner for normal operation basically without impact on burning structures in the normal operation.
Owner:YANTAI LONGYUAN POWER TECH

Pulverized coal jet flow midstream and downstream combustion organization method in tangent circle pulverized coal combustion boiler

The invention discloses a pulverized coal jet flow midstream and downstream combustion organization method in a tangent circle pulverized coal combustion boiler. Corresponding wall air nozzles are distributed in a hearth main combustion area of the pulverized coal combustion boiler in a manner of corresponding to primary air pulverized coal combustors, and are formed in the positions, close to the pulverized coal jet flow midstream and downstream positions of outlets, of a hearth water cooling wall, part of hot air is introduced into the wall air nozzles, and is directly sprayed into the corresponding primary air pulverized coal jet flow midstream and downstream interval in a jet flow manner, pulverized coal jet flow midstream and downstream combustion organization is carried out, the oxygen concentration and the pulverized coal combustion rate of the pulverized coal jet flow midstream and downstream interval are improved, and wall attaching happening of the pulverized coal jet flow midstream and downstream interval is directly obstructed. According to the method, pulverized coal jet flow midstream and downstream interval combustion organization and control can be achieved, happening of water cooling wall coking and high-temperature corrosion is prevented, the pulverized coal combustion efficiency is further improved, NOx generation and emissions are reduced, the proper combustion capacity of the pulverized coal combustion boiler for combustion low-volatile lower-ash-melting-point coal is expanded, and the fuel procurement cost is reduced.
Owner:张泽

Combustion organizing method and combustion system

The invention provides a combustion organizing method and a combustion system. The combustion organizing method includes the steps that high-energy density fuel mixed gas is formed on the periphery of a spark plug of an engine in a gasoline direct injection mode, wherein the excess air coefficient of the high-energy density fuel mixed gas is smaller than 1, and the high-energy density fuel low calorific value is larger than or equal to 44,000 kilojoules per kilogram; high octane value fuel mixed gas is formed on the periphery of an air cylinder wall of the engine in a port fuel injection mode, wherein the excess air coefficient of the high octane value fuel mixed gas is larger than 1, the octane value is larger than or equal to 95, and the high-energy density fuel mixed gas and the high octane value fuel mixed gas form layered equivalent ratio mixed gas inside an air cylinder of the engine. According to the combustion organizing method and the combustion system, the knocking phenomenon of the high-compression-ratio engine can be effectively restrained, the important support is provided for energy saving and emission reduction of the engine, cost is low, the powerful support is provided for technology upgrading of existing engine products, and the industrialized prospect is good.
Owner:TSINGHUA UNIV

Dual-fuel engine combustion organization method using high-pressure natural gas injection valve

The invention provides a dual-fuel engine combustion organization method using a high-pressure natural gas injection valve. When the load of a dual-fuel engine is less than 15%, a main fuel injector performs a single injection into a cylinder. When the load of the dual-fuel engine is 15 to 50%, the high-pressure natural gas injection valve performs two unequal amounts of injections into a combustion chamber, and a secondary fuel injector performs a micro single injection. When the load of the dual-fuel engine is 50 to 75%, two equal amounts of natural gas injections are performed, and the secondary fuel injector performs a micro single injection. When the load of the dual-fuel engine is greater than 75%, a single natural gas injection is performed, and the secondary fuel injector performsa micro single injection. According to the working condition of the dual-fuel engine, by adjusting the injection timing, the number of injections and the injection quantity of the high-pressure natural gas injection valve, the concentration gradient distribution of a mixed gas in the cylinder is controlled to realize stratified combustion and homogeneous combustion. The injection timing of the main and secondary fuel injects are adjusted to control the starting point of combustion, in order that the fuel concentration distribution of the dual-fuel engine is in the optimal state under various working conditions, which is beneficial to the stabile, high-efficient and low-emission combustion of the engine.
Owner:HARBIN ENG UNIV

Burnt tissue regeneration promotion ointment

The invention relates to a burnt tissue regeneration promotion ointment which is an external ointment for treating various burns and scalds. The ointment is based on a Dang patrimonial medicine formula and verified by clinical practice of more than fifty years. The ointment comprises lithospermum, Chinese angelica, radix angelicae, olibanum, myrrh, gallnuts, garden burnet, rehmannia roots, coptisroots, rhubarb, amoorcorn tree bark, radix scutellariae, earthworms, pericarpium papaveris, elephant skin, tortoise plastron, gypsum, snow lotus herb, red halloysite, sesame oil, beeswax, bee glue, vaseline, calomel, borneol and sangusis draconis. The whole formula of the ointment is clear in treatment principle and reasonable in compatibility; all medicines exert a synergistic effect; the ointment has functions of clearing away heat and toxic materials, diminishing swelling, alleviating a pain, diminishing inflammation, dissipating blood stasis, removing necrotic tissues and promoting tissueregeneration, has a good treatment effect on various burns and scalds, takes effect quickly and can achieve significant effects of treatment of both symptoms and root causes of a disease, low recurrence possibility after curing, and no scar left; the clinical practice for many years proves that a cure rate reaches 100%; and the ointment receives unanimous praise from massive patients, and friendsand relatives of the patients.
Owner:党东汉

Natural gas engine structure and combustion organization method thereof

The invention provides a natural gas engine structure and a combustion organization method of the natural gas engine structure. The natural gas engine structure comprises a cylinder cover, a cylinder and a piston. A spiral intake channel, a low-pressure one-way gas supply valve and a spark plug are installed in the air cylinder cover. A pre-combustion chamber is arranged in the cylinder cover. An outlet of the low-pressure one-way gas supply valve communicates with the pre-combustion chamber. The end of the spark plug is located in the pre-combustion chamber. The portion, located outside the cylinder cover, of the spiral intake channel is provided with a low-pressure natural gas injection valve. The spiral intake channel comprises a gas channel inlet, a gas channel outlet and a spiral gas channel communicating with the gas channel inlet and the gas channel outlet. The spiral gas channel comprises a tangent three-dimensional circular arc body. According to the natural gas engine structure, the gas intake channel conducts low-pressure injection to form pre-mixed gas, by adjusting the injection timing, the number of times of injection and the injection amount of the low-pressure natural gas injection valve, the concentration of the mixed gas in the cylinder is controlled to be in gradient distribution, and then stratified combustion and homogeneous combustion are achieved; and the spiral intake channel improves the vortex intensity in the cylinder, and therefore the combustion efficiency is improved.
Owner:HARBIN ENG UNIV

Online real-time combustion optimization technology method for coal-fired power plant boiler

ActiveCN110594780AImprove economyConducive to operational performance monitoringCombustion regulationBurning tissueDaily operation
The invention provides an online real-time combustion optimization technology method for a coal-fired power plant boiler. The online real-time combustion optimization technology is characterized in that the online real-time combustion optimization technology is an open-loop online combustion optimization guidance method and does not affect the normal operation of the DCS, and a new combustion adjustment method is recommended on the basis of statistics and calculation analysis of operating data. The operating personnel of a unit adopt the new adjustment method provided by the invention throughintuitive data and picture comparison, so that the combustion organization of the boiler is relatively optimized, and thus, the economical efficiency of the unit is improved in operation. The online real-time combustion optimization technology method relates to the technical field of combustion adjustment of a coal-fired power plant, and can be used as a guide for combustion optimization in the daily operation of the unit. The online real-time combustion optimization technology method enables the combustion organization of the boiler to be optimized in the operation process by counting the main operation adjustment methods of the boiler combustion, and recommending the new operation adjustment method in combination with online real-time data analysis, achieves the purpose of improving theeconomical efficiency of the unit in the operation process, and is relatively conducive to the operation performance monitoring, energy saving, emission reduction and the like of coal-fired power plant equipment.
Owner:SHANGHAI POWER EQUIP RES INST

A combustion organization method and a combustion system

The invention provides a combustion organizing method and a combustion system. The combustion organizing method includes the steps that high-energy density fuel mixed gas is formed on the periphery of a spark plug of an engine in a gasoline direct injection mode, wherein the excess air coefficient of the high-energy density fuel mixed gas is smaller than 1, and the high-energy density fuel low calorific value is larger than or equal to 44,000 kilojoules per kilogram; high octane value fuel mixed gas is formed on the periphery of an air cylinder wall of the engine in a port fuel injection mode, wherein the excess air coefficient of the high octane value fuel mixed gas is larger than 1, the octane value is larger than or equal to 95, and the high-energy density fuel mixed gas and the high octane value fuel mixed gas form layered equivalent ratio mixed gas inside an air cylinder of the engine. According to the combustion organizing method and the combustion system, the knocking phenomenon of the high-compression-ratio engine can be effectively restrained, the important support is provided for energy saving and emission reduction of the engine, cost is low, the powerful support is provided for technology upgrading of existing engine products, and the industrialized prospect is good.
Owner:TSINGHUA UNIV

A Combustion Organization Method in Furnace of Opposed Combustion Pulverized Coal Boiler

The invention discloses an internal combustion organization method of an opposed firing pulverized-coal fired boiler, and belongs to the technical field of boiler pulverized-coal combustion. Accordingto the method, part of fuel for combustion enters a hearth directly in a jet flow mode through a fuel jet nozzle of a lateral wall, is mixed with hot smoke generated by combustors of a front wall anda rear wall and is combusted, and the rest of the fuel enters through the combustors of the front wall and the rear wall and is combusted. The fuel is supplied from the lateral wall, so that mixing of part of the fuel and secondary air is postponed, fractional combustion of the fuel is realized, and the NOx generation amount is further reduced. Meanwhile, through combustion of the fuel near the lateral wall, uniformity of fuel horizontal distribution in a boiler combustion area can be realized, the problem of ash accumulation caused by non-uniform distribution of fly ash of a top horizontal flute inlet due to original combustion organization is relieved, and stable operation of a unit is facilitated. The internal combustion organization method of the opposed firing pulverized-coal fired boiler is simple in design, facilitates combustion organization adjustment, and is low in comprehensive operation cost.
Owner:TSINGHUA UNIV

Method for isolating edible fungus strains

InactiveCN109275509AGood for positioning germinationPrevent germination effectsCultivating equipmentsMushroom cultivationBurning tissueBurn tissue
The invention relates to a method for isolating edible fungus strains. The method comprises the following steps: performing exposure of a fresh aseptic tissue of a fruiting body, cutting off a block from the surface of the aseptic tissue with a sharp tip, inserting the shape tip obliquely into the tissue, performing isolation with the shape tip, allowing a slope in a test tube to be downward, pulling out a tampon, clamping the tissue block with tweezers, burning the tissue block over flame lightly and to and fro, putting the burned tissue block into the test tube, covering the test tube with the tampon, tilting the test tube finally, allowing an isolation culture medium to face downwards, shaking the tissue block gently so as to make the tissue block slide directly from the mouth of the test tube to the bottom of the test tube containing the culture medium and be stuck between the culture medium and the test tube, and then putting the test tube at a temperature of 22-28 DEG C, whereingermination of hyphae occurs in 3 days, and transfer of the strains can be conducted in 8-12 days. According to the isolating method, operation can be conducted in an open environment without specialequipment, and in addition, alcohol and other disinfectants are not needed for the surface treatment, and direct clamping with the tweezers and even burning over the flame of an alcohol lamp are conducted, so that the surface dust and hybrid bacteria are burned by the flame; the tissue block does not pass over the culture medium, so that the contamination rate is reduced greatly.
Owner:张坤

Tiny oil ignition whirlwind coal dust burner suitable for meager coal and anthracite coal

InactiveCN100535516CHigh temperature pyrolysisRealize the recovery of volatile matterPulverulent fuel combustion burnersBurning tissueCyclone
The invention discloses a whirlwind pulverized coal burner suitable for lean coal and anthracite. It includes a cyclone burner cylinder and a guide volute made of refractory materials. The cylinder body of the cyclone burner and the guide volute are connected in series and the central axes coincide with each other. The advantages of the present invention are: during the high-efficiency and high-efficiency gasification oil gun ignition process, the high-temperature flame of the oil gun rotates forward along the tangential direction in the burner barrel, and the coal powder is introduced from the axial direction for cyclone combustion. A high-temperature zone is formed in the cylinder, which realizes the high-temperature cracking of coal powder, regenerates volatile matter, and improves the burnout rate of inferior coal; the high-temperature oil flame energy is concentrated and released in the burner cylinder, thereby directly increasing the energy per unit volume of ignition and temperature level; it is beneficial to the heat exchange between high-temperature oil fume and coal powder, and accelerates the ignition of coal powder; the burner has low resistance and can be used as the main burner in normal operation, basically without affecting the normal operation of the combustion organization.
Owner:YANTAI LONGYUAN POWER TECH

Demountable type flexible abdominal cavity micro-invasive operation invisible endoscope channel

The invention relates to a demountable type flexible abdominal cavity micro-invasive operation invisible endoscope channel which comprises a valve-comprising porous platform and a flexible abdominal cavity channel pipe, wherein the valve-comprising porous platform is placed outside the abdominal cavity, the flexible abdominal cavity channel pipe is connected with the porous platform and can be detachably inserted into the abdominal cavity, and a quick separation / coupling mechanism is arranged between the valve-comprising porous platform and the flexible abdominal cavity channel pipe capable of being inserted into the abdominal cavity; multiple one-way valves with an independent appliance channel and a group of gas pipes and gas outflow pipes are arranged on the porous platform, the abdominal cavity channel pipe is a segment of sub-circular flexible thin film channel, the upper end of the abdominal cavity channel pipe is connected with the porous operating platform and the lower end of the abdominal cavity channel pipe is connected with a round overturning ring; and an inner ring, which can realize up-and-down free displacement and is provided with a lifting belt, is arranged outside the abdominal cavity channel pipe formed by the flexible thin film. The device has an airtight function, can maintain pneumoperitoneal pressure when a protection appliance enters a body, and can conveniently and quickly eliminate smog generated due to electric knife burning tissues, thereby facilitating the free apparatus operation by surgeon, shortening operation time, and bringing convenience for the surgeon in taking out the samples multiple times.
Owner:INNOVEX MEDICAL CO LTD

Combustion organization method in the middle and downstream of pulverized coal jet in tangential pulverized coal combustion boiler

The invention discloses a pulverized coal jet flow midstream and downstream combustion organization method in a tangent circle pulverized coal combustion boiler. Corresponding wall air nozzles are distributed in a hearth main combustion area of the pulverized coal combustion boiler in a manner of corresponding to primary air pulverized coal combustors, and are formed in the positions, close to the pulverized coal jet flow midstream and downstream positions of outlets, of a hearth water cooling wall, part of hot air is introduced into the wall air nozzles, and is directly sprayed into the corresponding primary air pulverized coal jet flow midstream and downstream interval in a jet flow manner, pulverized coal jet flow midstream and downstream combustion organization is carried out, the oxygen concentration and the pulverized coal combustion rate of the pulverized coal jet flow midstream and downstream interval are improved, and wall attaching happening of the pulverized coal jet flow midstream and downstream interval is directly obstructed. According to the method, pulverized coal jet flow midstream and downstream interval combustion organization and control can be achieved, happening of water cooling wall coking and high-temperature corrosion is prevented, the pulverized coal combustion efficiency is further improved, NOx generation and emissions are reduced, the proper combustion capacity of the pulverized coal combustion boiler for combustion low-volatile lower-ash-melting-point coal is expanded, and the fuel procurement cost is reduced.
Owner:张泽
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products