218results about "Fuel feeders" patented technology

A plant (1) for drying material for the production of asphalt comprises a drying unit (2) for drying mineral and / or recycled asphalt, b. a heating unit connected to the drying unit (2), which comprises a hydrogen burner (4), a hydrogen source (13, 20, 21, 22) for providing hydrogen gas and a pressure control line (14) connecting the hydrogen source (13, 20, 21, 22) and the hydrogen burner (4), wherein the pressure control line (14) has a processing pressure reducer (34) which is connected to the hydrogen burner (4) and for providing the hydrogen gas at processing pressure (p V ) and for multi-stage pressure relief of the hydrogen gas, a low-pressure reducer (28) and / or a high-pressure reducer (26).

The invention discloses a coal power unit flue gas waste heat power generation carbon dioxide capture comprehensive utilization system, which is characterized in that a flue gas waste heat ammonia steam turbine generator set is replaced by a flue gas waste heat low-temperature nitrogen steam turbine generator set or an expansion machine generator set, low-temperature nitrogen after doing work absorbs heat from flue gas, the flue gas is reduced to a lower temperature, and the flue gas waste heat ammonia steam turbine generator set is replaced by the expansion machine generator set. Carbon dioxide trapped after purification treatment is hydrogenated to prepare methanol which returns to the boiler for combustion, and the process is repeated, so that the coal consumption of the boiler can be reduced, and the problems of carbon dioxide absorption and storage are solved; part of power generated by the low-temperature nitrogen steam turbine generator unit or the expansion machine generator unit is used for producing hydrogen / oxygen by electrolyzing water, a low-temperature nitrogen freezing treatment device and other auxiliary machines, and the rest part increases the on-grid power, so that the benefits of the coal power unit are greatly improved. The methanol returns to the boiler for combustion, so that the effects of low-load stable combustion of the boiler and rapid load rising of the boiler can be achieved, and the requirements of deep peak regulation and high load change rate of a new-generation coal power unit are met.

To provide a combustion system capable of suppressing emission of greenhouse effect gas caused by mixed combustion of combustion supporting fuel with mixed gas containing inert gas and hydrocarbon gas while suppressing atmospheric emission of hydrocarbon gas.SOLUTION: A combustion system 1 includes: a membrane separation device 3 that generates process gas Gp obtained by separating at least part of nitrogen gas Gn from mixed gas Gm by using a separation membrane; a boiler 19 capable of burning at least any of methane gas Gh, the mixed gas Gm and the process gas Gp; and a mixed gas control section 6 that controls supply of the mixed gas Gm to the membrane separation device 3. When inert gas ratio determination means 9 determines a ratio is larger than a first threshold value, the mixed gas control section 6 supplies the mixed gas Gm from a mixed gas line 2 to the membrane separation device 3.SELECTED DRAWING: Figure 1

To surely prevent seal failure in closing a solenoid valve 533 even in using a partition plate 52 composed of a roll material, in a gas manifold including a nozzle block 51 having a plurality of nozzle chambers 511 opened forward, a partition plate 52 covering the nozzle chambers 511 from a front part, and a valve block 53 having a gas inflow chamber 531 recessed at a front part, and provided with a plurality of solenoid valves 533 to control gas supply to the plurality of nozzle chambers 511 through a plurality of communication holes 521 formed on the partition plate 52.SOLUTION: Valve seats 535 which are provided with valve holes 535a facing each of through holes 521 of a partition plate 52 and on which valve elements 533b of solenoid valves 533 can sit, are integrally formed on a valve block 53 in a state of being joined to upper and lower wall portions of a gas inflow chamber 531 through upper and lower bridge portions 535b projecting at upper and lower parts of the valve seat.SELECTED DRAWING: Figure 1

In a fuel supply system that supplies gaseous fuel to the engine of a vehicle, the fluid pressure of the discharged gaseous fuel can be adjusted by electronic control, and the fluid pressure of the gaseous fuel can be safely released in the event of a malfunction such as a power supply failure. [Solution] In a fuel supply system 100 that supplies gas fuel to an engine 6, the system includes an electronically controlled regulator 3 that reduces the introduced gas fuel to a set pressure and discharges it, a pressure sensor 7 that detects the fluid pressure of the gas fuel after reduction, and a normally open electromagnetic relief valve 8 provided downstream of the pressure regulating valve of the electronically controlled regulator 3. The electromagnetic relief valve 8 opens when the fluid pressure detected by the pressure sensor 7 reaches a pressure threshold or when the system is not energized, releasing the gas fuel outside the system.

This invention provides a boiler system that can effectively utilize the heat contained in ammonia decomposition gas. Furthermore, it provides a boiler system that can maintain the temperature of the ammonia decomposition gas at the boiler inlet within a predetermined temperature range. [Solution] The boiler system comprises an ammonia decomposition device that decomposes ammonia to produce ammonia decomposition gas containing hydrogen and nitrogen, a boiler that burns the ammonia decomposition gas as fuel, an ammonia decomposition gas supply line that supplies the ammonia decomposition gas from the ammonia decomposition device to the boiler, a feedwater line that supplies feedwater to the boiler, and a heat exchanger that heats the feedwater by exchanging heat between the ammonia decomposition gas and the feedwater.

The utility model discloses a low-calorific-value fuel gas calorific value adjusting device for stabilizing combustion of a hydrogen conversion furnace, which comprises a high-calorific-value analytic gas buffer tank and a controller, and the high-calorific-value analytic gas buffer tank is connected with a high-calorific-value analytic gas compressor through a gas pipeline. The high-calorific-value desorption gas compressor is connected with a low-calorific-value fuel gas pipeline through a high-pressure pipeline, an electric control valve controlled by a controller is arranged on the high-pressure pipeline, a gas analyzer controlled by the controller is arranged on the low-calorific-value fuel gas pipeline, and a mixing buffer tank is arranged at the tail end of the low-calorific-value fuel gas pipeline. According to the utility model, the mode that high-calorific-value analysis gas is supplied to low-calorific-value fuel gas is adopted, the low-calorific-value fuel gas pipeline is connected with the high-pressure pipeline, the high-calorific-value analysis gas is supplied to the low-calorific-value fuel gas conveying pipeline according to the detection of the gas analyzer and the adjustment requirements of the calorific value, and then the high-calorific-value analysis gas is mixed through the mixing buffer tank; and the adjusted low-calorific-value fuel gas is conveyed to the hydrogen production reformer, so that the hydrogen production reformer can stably burn.

In a gas burner for burning hydrogen gas by a diffusion combustion system, a plurality of flame holes 2 are formed in a tubular burner body 21 side by side in the longitudinal direction of the burner body 21, a distribution passage 6 for distributing hydrogen gas to the plurality of flame holes 2 is provided inside the burner body 21, and a gas supply passage 61 for supplying hydrogen gas is connected to the distribution passage 6.SOLUTION: The gas supply passage 61 is connected to the distribution passage 62 from a direction crossing the longitudinal direction of the burner body 21. The distribution passage 26 is provided with a suppressing member 27 which is positioned in a predetermined range Xa including the connecting part 61a of the gas supplying passage 61 in the longitudinal direction of the burner body 21 and suppresses the hydrogen gas from flowing from the connecting part 61a toward the flame hole 22 existing in the predetermined range Xa.SELECTED DRAWING: Figure 5

A glass manufacturing apparatus (1) includes a recuperator (60) configured to heat a heat medium through heat exchange with a combustion gas emitted from a glass melting furnace (10), a first reactor (71) configured to produce CH4 gas and H2O gas from CO2 gas and H2 gas by performing a methanation reaction, an water vapor controller (73) configured to adjust an H2O concentration in a product of the first reactor by removing at least a part of the H2O gas from the product of the first reactor, a second reactor (72) configured to produce CO gas and H2 gas from the product of the first reactor with the H2O concentration adjusted in the water vapor controller by performing at least one of a dry reforming reaction and a steam reforming reaction through heat exchange with the heat medium heated by the recuperator, and a burner (20) configured to form a flame in the glass melting furnace by burning a oxidizing gas and a flammable gas containing the CO gas and the H2 gas produced by the second reactor.

The utility model belongs to the technical field of blending combustion carbon reduction of a thermal power plant, and particularly provides a coal-fired thermal power plant boiler under-pressure gas blending combustion system, which is characterized by comprising a power station boiler (1), a steam turbine generator (3), a gas supply device (4), a gas supply device (5), a gas supply device (6), a gas supply device (7) and a gas supply device (8), and the power station boiler (1) is used for burning coal to produce steam and supplying the steam to the steam turbine generator (3). The pressurized combustible gas comes from hydrogen prepared by coal gasification or mixed gas of certain components; and the pressure reducing equipment is arranged at the upstream of the power station boiler (1) and is used for feeding the pressurized combustible gas into the power station boiler (1) after reducing the pressure of the pressurized combustible gas. In the system, the power station boiler (1) uses coal as main fuel to produce steam, combustible gas can also be combusted to support combustion or replace part of coal, the pressure reduction equipment reduces the pressure of the pressurized combustible gas and then feeds the pressurized combustible gas into the power station boiler (1) to be combusted, and the pressure requirement of blending combustion is met.

This heat treatment facility for performing a heat treatment on an object comprises: a heat treatment furnace into which the object is introduced; a storage part which stores ammonia; a supply line which removes ammonia from the storage part; a decomposition part which is provided on the supply line and decomposes ammonia into hydrogen and nitrogen; and a combustion part which is provided in the heat treatment furnace and generates combustion gas by burning at least hydrogen from among the gas supplied from the decomposition part through the supply line.

The invention discloses an LNG transport ship BOG multi-stage utilization system based on magnetic suspension energy-saving equipment. The LNG transport ship BOG multi-stage utilization system comprises an LNG storage tank, a magnetic suspension BOG direct expansion generator set, a first storage tank, a gas-fired boiler set, a magnetic suspension ORC low-temperature waste heat generator set, an energy storage battery, a second storage tank, a magnetic suspension BOG reliquefaction system and connecting pipelines. BOG gas is divided for the first time according to the volume ratio, the part with the large volume ratio after division is directly conveyed to a second storage tank, the other part is divided for the second time according to the volume ratio, the part with the large volume ratio after division is conveyed to a gas-fired boiler set and a magnetic suspension BOG direct expansion generator set after even division, and the gas-fired boiler set exchanges heat with a magnetic suspension ORC low-temperature waste heat generator set; bOG gas expanded by the magnetic suspension BOG direct expansion generator set is conveyed to a second storage tank to be mixed, and then is recycled by a magnetic suspension BOG reliquefaction system. The system is simple, the occupied space is small, and the space utilization rate of the ship is increased; reutilization in the multi-stage BOG liquefaction process is achieved, and the energy re-liquefaction conversion and utilization efficiency is improved.

A method for combustion of an ammonia mixed fuel, according to one embodiment, comprises: a fuel adjustment step of preparing a mixed fuel containing ammonia and hydrogen by mixing ammonia and hydrogen such that hydrogen is mixed in an amount in excess of gaseous ammonia on a volume basis; and a combustion step of supplying the mixed fuel and oxygen to an ammonia combustion catalyst to perform combustion.

The present invention makes it possible to reduce ignition noise in a heating cooker comprising a gas burner as a heat source, wherein a gas cock 62, which has a safety valve 622 and a plug 621 that rotates to a fully open position due to an ignition operation, is interposed in a gas supply passage 61 to the gas burner.　A solenoid valve 64 is interposed in the gas supply passage 61 in series with the gas cock 62, and an orifice 65 is interposed in the same in parallel with the solenoid valve 64. At the time of an ignition operation, an ignition means that is attached to the gas burner is operated with the solenoid valve 64 in a closed condition.

Provided is a method for producing a gas mixture that is produced in an iron mill and consumed as a fuel, and that, even when the generated amount of coke oven gas has become low, can be used continuously without upgrading an existing facility suitable for a conventional gas mixture. In the present invention, a first gas that is a secondary gas generated in an iron mill, a second gas that is a gas of which an index A indicating a discharge heat quantity is higher than that of a coke oven gas, and a third gas that is a gas of which an index B indicating a combustion speed is higher than that of the coke oven gas are mixed. Preferably, the coke oven gas is further mixed at a concentration of more than 0 vol% but less than 50 vol%.

The invention provides an ignition assembly, a natural gas incineration device and an LNG transport ship. The natural gas incineration device comprises a combustion chamber, and the ignition assembly comprises a supporting disc, a combustion head and an igniter. The supporting disc is connected to the combustion chamber and provided with an air inlet hole used for introducing combustion-supporting air into the combustion chamber. The combustion head is connected to the side, close to the interior of the combustion chamber, of the supporting disc, the peripheral side of the combustion head forms a grid-shaped pipe wall, the grid-shaped pipe wall comprises a plurality of grid rings, the grid rings are arranged in the axial direction of the ignition assembly, the adjacent grid rings are elastically connected and form a vacant part, and the vacant part is used for introducing BOG gas into the combustion chamber. The igniter is arranged on the side, close to the combustion chamber, of the supporting disc. According to the ignition assembly, the gas amount of the BOG gas entering the combustion chamber can be adjusted according to the working condition change of the BOG gas, so that combustion of the BOG gas and combustion-supporting air is more sufficient, the emission of the LNG transport ship reaches the standard, and the safety of the LNG transport ship is also improved.

The present invention provides a thermal energy generation system and method that can reduce the difficulty of separating carbon dioxide and impurities from exhaust gas after a combustion reaction, while making maximum use of existing combustion equipment. [Solution] The thermal energy generation system 10 comprises a water electrolysis device 20, a methanation device 30 that generates methane and water by reacting carbon dioxide with hydrogen produced in the water electrolysis device 20, a combustion device 40 that burns the methane discharged from the methanation device 30 using a combustion gas containing oxygen discharged from the water electrolysis device 20, and a CO2 distribution unit 55 that distributes and supplies the carbon dioxide discharged from the combustion device 40 to the methanation device 30 and the combustion device 40, respectively. The methanation device 30 carries out the methanation reaction using carbon dioxide from the CO2 distribution unit 55. The combustion device 40 carries out the combustion reaction by incorporating carbon dioxide from the CO2 distribution unit 55 into the combustion gas.

OBJECT To provide a metal heating furnace that burns ammonia while decreasing nitrogen oxides efficiently and a method of burning ammonia in the metal heating furnace. MEANS OF REALIZING THE OBJECT A metal heating furnace 10 includes a burner nozzle 31, plural injection nozzles 41, 42, 43 for ammonia, and a controlling unit 100. The burner nozzle 31 is provided on a furnace wall 11 and emits flame F, which is used to burn ammonia. The injection nozzles 41, 42, 43 for ammonia are provided on a ceiling wall 13 at intervals in a direction in which the flame F extends, and are used to eject ammonia in a direction perpendicular to the flame F. The controlling unit 100 optimizes an amount of ammonia ejected from each of the injection nozzles 41, 42, 43 for ammonia.

The utility model relates to the technical field of high-flash gas recovery, in particular to a gasification grey water high-flash gas recovery device which comprises a first condenser, a second condenser, a torch and a boiler. And a second treatment pipeline is fixedly communicated between the outlet of the second condenser and the first treatment pipeline. The device is reasonable and compact in structure and convenient to use, gasified grey water high-flash gas sent out by the high-pressure flash tank is condensed by the first condenser and then sent into the boiler for blending combustion of byproduct steam, the gasified grey water high-flash gas can be effectively recycled, the combustible gas byproduct steam rich in the gasified grey water high-flash gas is utilized, and the utilization rate of the byproduct steam is improved. The consumption of torch natural gas is reduced, the release of waste gas is reduced, and the environmental protection pressure is relieved.

The present application belongs to the field of pollutant control, and specifically discloses a method and system for reducing the generation of nitrogen oxides during the combustion of ammonia coal. The method is specifically as follows: liquid ammonia is gasified and then subjected to a thermal catalytic reaction to generate hydrogen and nitrogen to obtain an ammonia-blended mixed gas, and whether the ratio of hydrogen to ammonia concentration in the ammonia-blended mixed gas is greater than or equal to a threshold is determined. If so, the ammonia-blended mixed gas is discharged for co-combustion, and if not, the ammonia-blended mixed gas is subjected to a thermal catalytic reaction again. The present application uses the ratio of hydrogen to ammonia concentration in the ammonia-blended mixed gas as a criterion for determining whether it can be co-combusted, and balances the effects of H2 and NH3 on NO during the combustion process. x The influence of the generation is studied, and a calculation formula for the threshold value is proposed, which can flexibly adjust the raw material side according to the actual blending situation, effectively reducing the generation of nitrogen oxides during the combustion of ammonia coal, and there is no need to adjust the combustion side, which will not affect the combustion stability and boiler thermal efficiency, and has the advantages of simple operation and low cost.

To provide a flashback-proof gas burner adapted to be coupled to an aperture of a combustion chamber.SOLUTION: The gas burner is characterized by a specific configuration of a probe and its location for sensing the temperature. The probe has a fast response to changes in temperature, in particular when the flame is extinguished, allowing a fast response to close a valve for supplying gas to an inlet port, thereby preventing any explosion.SELECTED DRAWING: Figure 1

A floating body provided with: a floating body main body; a tank which is provided in the floating body main body, and in which ammonia is stored and a mixed gas comprising ammonia and a gas other than the ammonia is stored as a gas phase fraction; a compression unit into which the mixed gas in the tank is introduced and the mixed gas is compressed; a separation membrane into which the mixed gas that has been compressed by the compression unit is introduced to separate the mixed gas into the ammonia and the gas other than the ammonia; and a cooling section which cools the ammonia that has been separated by the separation membrane and is put back into the tank.

In a gas turbine, the fuel flowing through the fuel nozzle is maintained at an appropriate temperature, making it possible to inject it into the combustion chamber of the combustor. [Solution] A fuel nozzle for injecting fuel into the combustion chamber of a gas turbine combustor, comprising: an air passage for circulating air supplied to the combustion chamber; a fuel passage for circulating fuel supplied to the combustion chamber; and an insulating structure disposed between the air passage and the fuel passage.

The invention discloses a boiler system, power generation equipment and a control method of the power generation equipment. An outlet of the mixed gas pipeline is connected with a first inlet of the boiler body, and the mixed gas pipeline is provided with a first valve, a first flow meter and a first calorific value instrument; an outlet of the blast furnace gas pipeline is connected with an inlet of the mixed gas pipeline; an outlet of the converter gas pipeline is connected with an inlet of the mixed gas pipeline, and a second valve is arranged on the converter gas pipeline; the controller is used for acquiring the required heat of the boiler body in unit time; and based on the required heat, the current detection flow of the first flowmeter and the current detection heat value of the first heat value instrument, the opening degree of the first valve and / or the second valve is adjusted, so that the actual heat provided by the coal gas in unit time of the boiler body reaches the required heat. The technical problem that the adjustment precision of the gas inlet amount of the coal gas in the boiler is low is solved.

The utility model relates to the technical field of coal mine heating, in particular to an energy-saving underground coal mine heating system which comprises an outer shell, an upper gas distribution disc is installed on the top face of the inner side of the outer shell, the bottom face of the upper gas distribution disc is connected with an upper spraying pipe, and the top face of the upper gas distribution disc is connected with a stored gas inlet. The bottom surface of the inner side of the shell is provided with a lower gas distribution disc, the top surface of the lower gas distribution disc is connected with a lower spray pipe, the bottom surface of the lower gas distribution disc is connected with a collected gas inlet, and the right side wall of the shell is connected with an exhaust port; a mixing structure is installed on the inner side of the shell and comprises a movable disc, and the movable disc is movably installed in the middle of the inner side of the shell. According to the utility model, the movable disc capable of moving up and down is arranged, so that gas exhausted by the upper spray pipe and the lower spray pipe can be pushed to flow up and down, the gas from two sources can be fully mixed, the concentration of the gas is ensured, and the heat supply effect is further improved.

The utility model relates to the technical field of incinerators, in particular to an incinerator ever-burning flame gas supply structure which comprises a burner controller, an incinerator, a liquefied petroleum gas pipeline and a fuel gas pipeline, the burner controller and the incinerator are integrated, and the liquefied petroleum gas pipeline is divided into two paths including an ever-burning flame pipeline and a main flame pipeline. The long open fire pipeline is communicated with the burner controller and used for supplying liquefied petroleum gas to the burner controller, the main fire pipeline is communicated with the incinerator and used for supplying liquefied petroleum gas to the incinerator, and a fuel gas branch communicating the fuel gas pipeline with the long open fire pipeline is arranged between the fuel gas pipeline and the long open fire pipeline. When a system is started, liquefied petroleum gas is used as fuel of the pilot flame, after the system is started, the pilot flame pipeline is cut off, the fuel gas is used as the fuel of the pilot flame, and the fuel gas is used as the fuel of the pilot flame, so that the aims of saving energy and improving efficiency are fulfilled.

A marine ammonia exhaust gas treatment system and coupled power generation system relate to the technical field of marine ammonia fuel supply systems. A mixture of ammonia and nitrogen generated on board enters an ammonia collection tank. The outlet of the ammonia collection tank is connected to both the ammonia inlet of the combustion chamber and the ammonia inlet of the pyrolysis chamber. The heat from the combustion chamber is supplied to the pyrolysis chamber. The exhaust outlet of the pyrolysis chamber is connected to the inlet of a gas separation device. The gas separation device includes a nitrogen outlet and a hydrogen outlet. The nitrogen outlet is connected to both an outlet and a nitrogen compressor. The outlet of the nitrogen compressor is connected to various nitrogen-using devices. The hydrogen outlet is connected to both the hydrogen inlet of the combustion chamber and a hydrogen compressor. The outlet of the hydrogen compressor is connected to various hydrogen-using devices, such as fuel cells, forming a coupled power generation system. This invention proposes a design concept for treating ammonia exhaust gas through combustion heating and ammonia pyrolysis, avoiding ammonia wastewater discharge and preventing waste.

To provide a gas burner which includes a burner body 4 rising from the downstream end of a gas inflow pipe 3, and a burner head 5 placed on the burner body 4, the burner body 4 having a distribution chamber 42 inside, into which fuel gas flows via the gas inflow pipe 3, the burner head 5 having an annular wall 51 exposed to the outer peripheral face of the burner head, the annular wall being provided with a plurality of burner ports 52a spaced therefrom in the peripheral direction for jetting fuel gas from the distribution chamber 42 to cause diffusion burning, capable of suppressing a deviation from the regulated maximum thermal power of actual maximum thermal power.SOLUTION: In the distribution chamber 42, a flow control plate 43 is provided having a plurality of ventilation holes 431 through which fuel gas flowing from the gas inflow pipe 3 passes to the burner head 5. The maximum thermal power of the gas burner is regulated by the total opening area of the ventilation holes 431.SELECTED DRAWING: Figure 2

To provide a steel material fusion-cutting device and a steel material fusion-cutting method which can perform gas fusion-cutting with 100% of hydrogen gas and easily adjust the burner height to a proper position.SOLUTION: A steel material fusion-cutting device comprises: an oxygen gas supply pipe which is connected with an oxygen gas supply source; a first pipe which is connected with a combustible mixed gas supply source; a second pipe which is connected with a hydrogen gas supply source; a combustion gas supply pipe which is connected with the first pipe and the second pipe via a switching mechanism; and a burner which is connected with the oxygen gas supply pipe and the combustion gas supply pipe. The switching mechanism can alternatively switch between the first state where the first pipe communicates to the combustion gas supply pipe and the second state where the second pipe communicates to the combustion gas supply pipe.SELECTED DRAWING: Figure 2

To provide a combustion apparatus and a heating cooker capable of preventing the discharge of gas causing uncomfortable feeling and uneasiness to users, even if heating power adjustment control operation is carried out by using a latch type solenoid valve.SOLUTION: A combustion apparatus 1 includes a burner 3, a gas supply path 24 that supplies fuel gas to the burner, a latch type solenoid valve 5 that opens / closes the gas supply path, igniting means 7 and 9 for burning the fuel gas supplied to the burner, and a control portion 6 that instructs the latch type solenoid valve to open and close and instructs the igniting means to ignite the fuel gas. The control portion 6 gives a continuous igniting instruction which repeats igniting instruction to the igniting means 7 and 9 under a predetermined condition after the valve closing instruction of the latch type solenoid valve 5, when performing heating-power regulating control operation which alternately repeats a combustion process in which the latch type solenoid valve 5 is opened by a valve opening instruction to instruct the igniting means 7 and 9 to burn the burner 3 and an extinction process in which the latch type solenoid valve 5 is closed by a valve closing instruction to extinguish the burner 3.SELECTED DRAWING: Figure 3