36results about How to "Safe and Stable Combustion" patented technology

The present invention relates to a burner, substantially comprising a swirl generator for a combustion air stream and means for introducing fuel into the combustion air stream, the swirl generator having combustion-air inlet openings for the combustion air stream that enters the burner, and the means for introducing fuel into the combustion air stream comprising one or more first fuel feeds having a group of first fuel outlet openings, arranged distributed around the burner axis at a combustion chamber-side end of the burner. The burner is distinguished by the fact that the one or more first fuel feeds having the group of first fuel outlet openings are mechanically decoupled from the swirl generator. The present burner allows reliable and safe use of synthesis gas in both dilute and undiluted form as fuel.

The invention provides a high-adjustment-ratio water-cooling premixed combustion high-strength heat exchange gas condensation boiler. The high-adjustment-ratio water-cooling premixed combustion high-strength heat exchange gas condensation boiler comprises a combustor and a heat exchanger, wherein the full-premixed combustor mounted in the center of a boiler top plate consists of a booster fan, a premixing chamber and a water-cooling combustion head; a flame stabilizing pipe and an anti-tempering column of the water-cooling combustion head can realize high-adjustment-ratio water-cooling premixed combustion; the heat exchanger consists of a lap of water-cooling wall and one or more laps of fins uniformly arranged in the peripheral direction by bent edge folding fin pipes; an air blower feedsair into the premixing chamber for fully mixing with gas to enter an inner cavity of a hole plate of the combustion head; the air flows out from a fire hole, and is sprayed out from narrow gaps amongthe water-cooling pipes distributed in the peripheral direction; after the air flows out from the flame stabilizing pipe, the air is ignited to uniformly combust in the peripheral direction and the axial direction, and radiates and releases heat to an inner pipe ring; smoke flushes base pipes and fins of inner and outer ring fin pipes in sequence to reinforce heat exchange; and the smoke downwards flows into a dew bearing disc through gaps between a housing and an outer layer fin pipe, and is exhausted into atmosphere from a smoke outlet. The high-adjustment-ratio water-cooling premixed combustion high-strength heat exchange gas condensation boiler is high in combustion load adjustment ratio, compact in heat exchange, low in nitrogen emission and high in heat efficiency.

The invention relates to a temperature control low-nitrogen and energy-saving combustion device capable of achieving flue gas recirculation and staged premixed combustion. The combustion device can effectively complete airflow straight flow or rotational flow staged premixing and combustion, the combustion temperature is lowered, the content of nitrogen oxide can be effectively controlled, gas consumption is reduced, and energy saving is realized. A mixed combustion space is arranged in the opening end of a combustion chamber. The closed end of the mixed combustion space is connected with a staged combustor. A recirculation flue gas inlet pipe is arranged on the outer circle of a recirculation flue gas distribution loop in the closed end of the combustion chamber. Recirculation flue gas bleeding pipes are arranged between the recirculation flue gas distribution loop and the mixed combustion space. Supporting spinning disks are arranged in each loop of the staged combustor. An airflow adjusting blunt body is arranged at the opening of the inner end of the staged combustor. Primary and secondary air inlet pipes are arranged on the side wall of the staged combustor. An aided mixing flow equalizing plate is arranged in a primary air pre-mixing chamber in the opening of the inner end of the staged combustor. The temperature control low-nitrogen and energy-saving combustion device is more obvious in energy-saving effect, the combustion temperature and nitrogen oxide production are effectively controlled, and pollution to the atmospheric environment is reduced.

The invention discloses an automatic control method for the air-fuel ratio of a hot-blast stove. The method includes the following steps that S1, in the ignition stage, after a control system of the hot-blast stove receives a combustion signal, air and fuel gas are input into the hot-blast stove according to the optimal air-fuel ratio; S2, after a signal indicating that ignition of the hot-blast stove is completed is received, an air-fuel ratio dual-PID controller is started, dual PID includes remaining oxygen PID and arch crown temperature PID, and maximum values of the two PID control results are output; and S3, after a banking signal of the hot-blast stove is received, the control system of the hot-blast stove stops working. By means of the automatic control method for the air-fuel ratio of the hot-blast stove, the optimal air-fuel ratio can be output all the time, and it is guaranteed that coal gas is efficiently and fully combusted; the arch crown temperature is controlled to be stabilized at the a target arch crown temperature, and it is guaranteed that the combustion process is safe and stable; and automatic and stable switch for different requirements of the air-fuel ratio in various stages can be achieved.

The invention discloses a heating furnace control and combustion optimization method. The problem that a heating furnace system is not easy to control is solved. A control strategy combining an advanced control algorithm and a conventional control algorithm is adopted, and continuous stable operation of the heating furnace system is ensured. O2 and CO switching control is used, and low-oxygen combustion is achieved. A national standard simplified formula serves as an optimized target. Real-time optimization of the oxygen content in flue gas is achieved through a self-optimization algorithm, and the aim of economical combustion is achieved.

The invention discloses a novel heat energy circulation Chinese frying furnace device. The device comprises a burner, a hearth, a hearth shell and a frying pan bracket; the burner comprises a combustion plate, a burner bracket and a gas mixing cavity; the bottom of the hearth shell is connected with a waste gas pipe; a heat return water tank is connected through a waste gas pipe; and a waste gas flue is arranged on the heat return water tank. The hearth, the burner and the whole frying furnace system are improved, so that the heat conversion rate of the frying furnace is increased, the oxygen supply in a combustion chamber is guaranteed, and the waste gas discharge pollution problem is solved; and meanwhile, high-temperature waste gas is reused to the greatest extent to effectively prevent such problems as diffusion of the temperature in the hearth.

The invention belongs to the technical field of a gas calorific value instrument, and particularly relates to a burner for the gas calorific value instrument, which comprises a gas inlet, a gas pipe, a high-pressure ignition electrode, the burner, an air pipe body and an air inlet, wherein the gas inlet is connected with a burner base provided with a gas channel; the gas pipe, the high-pressure ignition electrode and the bottom end of the air pipe body are connected with the burner base; the high-pressure ignition electrode and the gas pipe are arranged in the air pipe boy; the gas inlet is communicated with the gas pipe by the gas channel; a nozzle head is communicated with the gas pipe; a circular air mixing board is provided with a thread through hole, symmetrical through holes, a group of circular combustion-supporting air through holes and a group of long-strip combustion-supporting air through holes; and the burner consists of the circular air mixing board, the nozzle head and an injection pipe. The burner for the gas calorific value instrument is simple in structure, capable of guaranteeing the combustible gas to be rapidly mixed and gas with low calorific value to be easily ignited, and safe and stable in the combustion process.

The invention belongs to the technical field of combustors, and particularly provides a tertiary air mixed gas combustion device. The tertiary air mixed gas combustion device comprises an injection pipe. The bottom of the injection pipe is in screw joint with a connecting disc, a nozzle is welded to the connecting disc, the bottom of the nozzle penetrates through the connecting disc and is connected with a gas supply pipeline, and air inlets are evenly formed in the outer wall of the injection pipe. Gas is sprayed from the nozzle, the gas and air are mixed in the injection pipe for the first time, the gas and the air are mixed for the second time through an open type gas mixing chamber after the mixed gas passes through the upper end of the injection pipe, and as the mixed gas sprayed at ahigh speed does not have other resistance besides air in the open type gas mixing chamber, the gas can entrain the mixed air to the maximum degree. When the mixed gas moving at a high speed rises totouch a floating flame preventing device, the ignited gas can be attached to the upper portion of the floating frame preventing device for combustion according to the wall attachment effect of the moving gas, and combustion is safe and stable.

The invention relates to the technical field of ammonia combustion, and particularly relates to an ammonia combustion control method and an ammonia combustion device. The ammonia combustion control method comprises the following steps of a starting combustion control stage, a continuous combustion control stage and an end combustion control stage which are sequentially conducted, by controlling the composition of mixed gas in each stage of ammonia combustion, the ammonia gas can be completely combusted under a micro-positive pressure condition, meanwhile, heat is provided to the outside, compared with a traditional high-pressure condition, the energy consumption and requirements of equipment are reduced, and the production cost is reduced. The adopted control method is simple and convenient to operate, safe and efficient, and can ensure that the ammonia combustion process is safe and stable.

This invention is a full premix type catalytic combustion device dispersing combustion method, which integrates the technological superiority of staged combustion, catalyzing body non-directional radiation heat transfer and intense flame directional radiation heat transfer. It includes premix chamber, homogeneous hole supporting plate and intermediate temperature type honeycomb catalyzing body. Natural gas and air all pass through the premix chamber. The temperature of catalyzing body lower reach gas phase space wall is higher than 800deg.C. The catalyzing body temperature is within 600-1000deg.C. The thickness of catalyzing body is within 25-50mm. The time of premix gas passing through the catalyzing body is less than 0.1s. 2-3.75 times air theoretically needed is provided. The fuel gas portion dissipated from catalytic combustion is proportional to air supply. The premix gas out of the catalyzing body is higher than 800deg.C, with the oxygen concentration less than 15%. The catalyzing body lower reach organization undertakes dispersing combustion can dissipates the residual fuel gas. This invention is safe and simple.

The invention relates to a fuel gas reformer and a method, belongs to the field of novel energy, and in particular relates to a fuel gas reformer and a fuel gas preparation method. According to the fuel gas reformer and the fuel gas preparation method, oxygen, hydrogen and water generated from electrolysis form molecular groups in a molecular bonding manner through water intramolecular hydrogen bond resonance, and a fuel gas of a high heat value is prepared by reforming the molecular groups by using a package reforming liquid. The fuel gas of the high heat value, which is prepared by using the fuel gas reformer and the fuel gas preparation method, is good in security, easy to store, high in heat value and free of environment pollution.

The invention relates to a torch combustor adapting to the high load, multiple work conditions and high-low heat value, and particularly, the torch combustor has the capability of treating the high heat value and low heat value flare gas at the same time. The torch combustor comprises a cylinder, a bottom purging steam pipe, a tracing pipe, a nightlight, a silencing cover, center injection steam pipes, a high-altitude igniter, an accompanying combustor and a small-flow cylinder. The small-flow cylinder and the cylinder are connected side by side and in parallel. The nightlight and the high-altitude igniter are connected to the position, close to the small-flow cylinder, of the cylinder. The bottom purging steam pipe is arranged in the cylinder, and the center injection steam pipes are welded to the cylinder in a penetrating manner and evenly distributed in the cylinder. The silencing cover is connected to the middle portion of the cylinder, and the tracing pipe is laid on the inner wall of the silencing cover. The accompanying combustor is arranged on the outer side of the cylinder. The torch combustor can be suitable for treating the high-heat-value flare gas and can also meet the requirement for exhausting of low-heat-value flare gas.

The invention discloses a flame detection method and device for combustion of a generator set boiler. A feeding device provides combustion raw materials for the boiler. The flame detection method comprises the steps that feeding device running signals relevant to running of the feeding device and generator set loads are received; flame detection parameters are set according to the feeding device running signals and the generator set loads so as to ensure that effective flame detection signals are provided. Through the method, flame detection reliability can be guaranteed, and then safe and stable combustion of fuel in a hearth of the boiler is ensured.

An apparatus is used to stir and mix water with oil and simultaneously form small water-in-oil molecular clusters in the process of producing emulsion fuel. The apparatus includes a stirring tank and a stirring device located in the tank. The stirring device includes a rotary shaft and at least two axially extended blades connected to the rotary shaft. The blades respectively have a plurality of evenly distributed perforations formed thereon. When the blades rotate, the water and oil in the tank are continuously cut due to the perforations to thereby become evenly mixed with each other. Tourmaline stones or other power stones, collectively referred to as the tourmaline stones herein, are positioned in the stirring tank to electrolyze the water and form small water molecular clusters. The tourmaline stones also cause the water to contain rich amount of anionic surfactants, which emulsify the oil-water fuel to thereby form emulsion fuel.

The invention discloses a heating furnace control and combustion optimization method. The problem that a heating furnace system is not easy to control is solved. A control strategy combining an advanced control algorithm and a conventional control algorithm is adopted, and continuous stable operation of the heating furnace system is ensured. O2 and CO switching control is used, and low-oxygen combustion is achieved. A national standard simplified formula serves as an optimized target. Real-time optimization of the oxygen content in flue gas is achieved through a self-optimization algorithm, and the aim of economical combustion is achieved.

The invention discloses a supercritical boiler flexible peak shaving system and method. A cold inlet of a steam boiler water heater communicates with an outlet of a coal economizer outlet header pipe and a water-cooled wall lower collecting box, and a steam pulverized coal heater is arranged on a primary air pulverized coal pipeline; and an inlet and an outlet of a hot steam extraction pipeline communicate with a reheating hot section steam mother pipe and a hot inlet of a steam boiler water heater respectively, a hot outlet of the steam boiler water heater is connected with a hot inlet of the steam pulverized coal heater, and a hot outlet of the steam pulverized coal heater is connected with a bled steam exhaust pipeline. The problem that the wet-state conversion load is high when a supercritical boiler runs under the ultra-low load is solved. Under the working conditions that a unit operates under ultra-low load and the boiler needs to be converted into wet state operation, boiler water from the outlet of the coal economizer to the water-cooled wall lower collecting box is heated, the ignition environment of pulverized coal is improved, and conversion into the wet state is delayed in the load reduction process; and steam heats primary air pulverized coal airflow, the temperature of the pulverized coal airflow is increased, pulverized coal ignition heat is reduced, and combustion stability is improved.

The invention discloses a coal feeding system for a coal pulverizing system of a thermal power plant. The coal feeding system comprises a raw coal bunker, a coal falling pipe is connected to the outlet end of the raw coal bunker, a coal feeding gate capable of reciprocating at any opening degree is slidably arranged at the outlet end of the coal falling pipe, a first vertical partition plate used for partitioning the coal bunker is arranged in the raw coal bunker, a vertical second partition plate used for separating coal pipes is arranged in the coal falling pipe, and the first partition plate and the second partition plate are located on the same plane. According to the coal feeding system, the coal quality of coal as fired can be selected autonomously and flexibly, the problem that an existing coal pulverizing system can only use a single coal type blended according to a coal yard is eliminated, stable and safe boiler combustion in the existing and recent power development stage is guaranteed, the capacity of the thermal power plant for rapidly responding to power grid load increasing and decreasing is greatly guaranteed, and a reliable guarantee is provided for the safety of a power system.

The invention relates to a reforming liquid and a reforming and preparation method, belongs to the field of new energy and specifically relates to a fuel gas reforming liquid and a fuel gas reforming and preparation method. According to the method, hydrogen, oxygen and water generated from electrolysis form molecular groups through molecular bonding under the effect of water intramolecular hydrogen bond resonance. The reforming liquid provided by the invention is utilized to reform the molecular groups, so as to obtain the fuel gas with high calorific value. The fuel gas with high calorific value prepared according to the invention has the advantages of high safety, easiness in storage, high calorific value and no environmental pollution.

The invention relates to an electrolysis device and system, belongs to the field of new energy, and particularly relates to a water electrolysis device and a gas preparation system. The gas preparation system is characterized in that hydrogen and oxygen generated through electrolysis and water form molecular groups through molecular bonding through resonance of hydrogen bonds in water molecules; and the molecular groups are reformed to obtain high-calorific value gas through utilizing a reforming solution. The high-calorific value gas prepared through the gas preparation system is good in safety, easy to store and high in calorific value, and does not pollute the environment.

The invention relates to a temperature control low-nitrogen and energy-saving combustion device capable of achieving flue gas recirculation and staged premixed combustion. The combustion device can effectively complete airflow straight flow or rotational flow staged premixing and combustion, the combustion temperature is lowered, the content of nitrogen oxide can be effectively controlled, gas consumption is reduced, and energy saving is realized. A mixed combustion space is arranged in the opening end of a combustion chamber. The closed end of the mixed combustion space is connected with a staged combustor. A recirculation flue gas inlet pipe is arranged on the outer circle of a recirculation flue gas distribution loop in the closed end of the combustion chamber. Recirculation flue gas bleeding pipes are arranged between the recirculation flue gas distribution loop and the mixed combustion space. Supporting spinning disks are arranged in each loop of the staged combustor. An airflow adjusting blunt body is arranged at the opening of the inner end of the staged combustor. Primary and secondary air inlet pipes are arranged on the side wall of the staged combustor. An aided mixing flow equalizing plate is arranged in a primary air pre-mixing chamber in the opening of the inner end of the staged combustor. The temperature control low-nitrogen and energy-saving combustion device is more obvious in energy-saving effect, the combustion temperature and nitrogen oxide production are effectively controlled, and pollution to the atmospheric environment is reduced.

The application discloses an air distribution system capable of realizing the stable combustion of hydrogen. The air distribution system comprises a hydrogen inlet device, a combustion-supporting gasinlet device, an air mixed control device and a combustion device, wherein the hydrogen inlet device and the combustion-supporting gas inlet device are separately connected with the combustion deviceand the air mixed control device; the combustion-supporting gas inlet device comprises an air inlet sub-device and an oxygen inlet sub-device; the air inlet sub-device comprises an air inlet plate anda supercharger connected with each other; the oxygen inlet sub-device comprises an oxygen storing tank and a second pressure reducing valve connected with each other; the supercharger and the secondpressure reducing valve are separately connected with the combustion device through a second pipeline; a mixing bottle is arranged at one end of the second pipeline; and a second barometric instrumentis arranged between the second pressure reducing valve and the mixing bottle. The air mixed control device controls the combustion-supporting gas inlet device to provide enough oxygen for the safetycombustion of hydrogen through the pressure of the hydrogen in the hydrogen inlet device, and transmits the mixed gas to the combustion device, so that the hydrogen combusts stably in the combustion device.

The invention relates to a hydrogen-containing gas storage and use method, belongs to the field of new energy and concretely, relates to a hydrogen-containing gas storage and use method. Through water molecule inner hydrogen bond resonance, hydrogen, oxygen and water form a molecular group through molecular bonds. The molecular group is reformed through a reforming liquid so that high-calorific value combustion gas is obtained. The hydrogen-containing gas storage and use method realizes easy storage of hydrogen-containing gas, has high safety and does not pollute the environment in use.

The invention discloses a novel heat energy circulation Chinese frying furnace device. The device comprises a burner, a hearth, a hearth shell and a frying pan bracket; the burner comprises a combustion plate, a burner bracket and a gas mixing cavity; the bottom of the hearth shell is connected with a waste gas pipe; a heat return water tank is connected through a waste gas pipe; and a waste gas flue is arranged on the heat return water tank. The hearth, the burner and the whole frying furnace system are improved, so that the heat conversion rate of the frying furnace is increased, the oxygen supply in a combustion chamber is guaranteed, and the waste gas discharge pollution problem is solved; and meanwhile, high-temperature waste gas is reused to the greatest extent to effectively prevent such problems as diffusion of the temperature in the hearth.

The invention discloses a fire detection method and device for boiler combustion of a generating set, wherein a feeding device provides combustion raw materials for the boiler, and the fire detection method includes: receiving a feeding device operation signal related to the operation of the feeding device and generator set load; and setting fire detection parameters according to the operation signal of the feeding device and the generator set load, so as to ensure an effective fire detection signal. The method can ensure the reliability of the flame detection, thereby ensuring the safe and stable combustion of the fuel in the furnace of the boiler.

The invention discloses a vacuum tail gas safe combustion device for biodiesel raw material vacuum distillation. The vacuum tail gas safe combustion device comprises a coal ball furnace with a tail gas combustion chamber, an explosion-proof temperature detection sensor PT100 thermal resistor, a flame arrester, a pipeline and a valve. A vacuum tail gas access pipe is divided into three paths after being connected with a ball valve, one path is connected with a condensate discharge ball valve and a discharged liquid collecting pipe, the other path is connected with a left ball valve, an anti-detonation pipeline flame arrester and a right ball valve, and the third path is connected with a bypass ball valve and then combined with the second path; after the explosion-proof temperature detection sensor PT100 thermal resistor is mounted, a large pipe branch and a small pipe branch are divided, the large pipe branch consists of a large pipe branch anti-deflagration pipeline flame arrester and a large pipe branch ball valve, the small pipe branch consists of a small pipe branch anti-deflagration pipeline flame arrester and a small pipe branch ball valve, and the two branches are combined and then connected with a combustion chamber tail gas input pipe led into a tail gas combustion chamber; and a steam conveying pipeline is connected with an outlet pipeline of a tail gas access ball valve after being connected with a stop valve. The vacuum tail gas safe combustion device for biodiesel raw material vacuum distillation is convenient and efficient to operate, safe, stable and environmentally friendly.

The invention relates to a gas compression system, belongs to the field of new energy and concretely relates to a hydrogen-containing gas compression system. From water ion electrolysis to hydrogen and oxygen production, single molecules of water, hydrogen and oxygen are formed a novel molecular group through molecular bonds, hydrogen molecules with high activity are fettered in the molecular group and the molecular group is compressed and stored. The system has good safety, can be stored easily, has a high combustion gas calorific value and does not pollute the environment.

The invention discloses a method for preparing coal water slurry through mixing of reverse osmosis membrane (RO) sewage and VAE emulsion waste water. The coal water slurry comprises, by mass, 0-36% of RO sewage, 0-36% of VAE emulsion waste water, 0.05-0.2% of a stabilizing agent, 0.5-1% of a dispersant and 60-68% of coal dust and the total mass parts of the RO and VAE emulsion waste water is in a range of 10-36. The method comprises adjusting pH of the RO sewage to 6-7 through hydrochloric acid, mixing the RO sewage and the VAE waste emulsion according to different ratios, adding the dispersant and coal into a mill together, carrying out milling, adding the stabilizing agent into the mixture and carrying out milling to obtain the coal water slurry.