Method of smokeless combustion of gas

FIELD: combustion apparatus for fluent fuels.

SUBSTANCE: method comprises supplying gas to be burnt out from the head of the burner of the torch plant in the combustion zone. The composition of gases is variable. The gas flow rate varies from 1m/s to 3.5 of sound speed due to generating excess static pressure of gas from 0.00001 MPa/cm2 to 3.0 MPa/cm2 by the movable control device. The gas jet is turbulent with a cone angle from 2o to 155o.

EFFECT: enhanced efficiency.

1 dwg

 

The invention relates to a method of combustion gases to the flare and other plants and can be used in oil, gas, petrochemical, chemical, coke and other industries, where there is a thermal neutralization of gases at the impossibility of their utilization in industrial processes and(or) emergency their emission into the atmosphere.

Regulations on the protection of the environment require that the combustion gases produced smokeless (no soot) and with a minimum content of carbon monoxide (CO) in the combustion products.

It is known that smokeless combustion gases to flare installation is only possible in a narrow current range of gas flow (typically, the minimum constant flow). By expanding the range of gas flow (up to a certain limit) smokeless combustion gases is provided by a forced flow of energy (steam or air, or water). Steam is supplied to the injection of air into the combustion zone gases and to increase turbulence. The air to ensure complete combustion. Water is supplied also to increase the turbulence of the gases generated steam, which allows increasing the volume of the evaporated water nearly 1700 times (Strezhevskoye I.I., Elnatan A.I. Flare. - Moscow: Chemistry. - 1989, p.39, 40, 59).

The disadvantage of this method is the fact smokeless combustion gases to flare installation is provided in a narrow current range of flow rates and gas composition, and at variable composition and gas flow either applying steam for injection of air into the flare tip (cap not more than 6%), or force feeding air into the head and is also uneconomical because one volume of combusted methane required about 11 volumes of air to one volume of propane, you should submit about 25 volumes of air, etc. or is it necessary to submit and steam, and air, and water.

There is also known a method smokeless combustion gases to flare installation, which consists in submitting the combusted gases from the burner tip flares in the combustion zone (RF patent No. 2003925, F 23 D 14/20, 1993).

The disadvantage of this method is that smokeless combustion gases to flare installation is provided in a narrow current range of flow rates and gas composition.

The objective of the invention is the provision of smokeless combustion gases to flare installation with variable composition and consumption, without force feeding water vapor or air, or water.

This task is achieved by the fact that in the known method smokeless combustion gases to flare installation, which consists in submitting the combusted gases from the burner tip flares in the combustion zone, the combusted gases are served variable composition and flow with adjustable calculated velocities from 1 m/s to 3.5 velocity of sound through the creation of mobile maintains the guide device of the excess static pressure of combustion gas under him from 0.00001 MPa/cm 2to 3.0 MPa/cm2proportional to the speed of gas flow, when this jet (jet) gases have a form of limited thickness of the turbulent flow of gases from an angle from 2° 155° and the direction of the axis of the stream of combusted gases.

The drawing illustrates the operation of a flare, which is the way smokeless flaring of variable composition and flow without forcing steam and / or air and / or water to the zone of combustion gases.

In the head 1 of the burner from the barrel 2 flares come combusted gases 3. In the upper part of the head 1 has a nozzle 4 (shown one of the options when it is of conical shape), the guide and forming a stream of combusted gases 5. Nozzles 4 contact (no or minimal gas duct 3 from the trunk flare (2) sealing the surface with a moving part of the regulating device 6. With the increase of gas consumption 3 pressure device 6 is slightly increased and the latter rises with the increase of the gap between the nozzle 4 and the control apparatus 6 (the elevated position shown by the dotted line). The occurrence of soot or darkening flame means a lack of oxygen for complete combustion of the gases in the combustion zone. For complete combustion to increase the flow rate of the jet gases 3 by increasing the static Yes the population gases 3 in the barrel of the torch, which rises to force the change of the gap between the nozzle 4 and the control apparatus 6. Increasing the gas pressure 3 increases: rate of expiration gases from the burner tip, the geometric dimensions of the gas jet, the surface of contact of the flame with the ambient air and the turbulence of the jet gases 3. Regulation of the size of the gap in the exit gases is performed using actuators 7 and rod 8.

The application of the aforementioned method of burning gases eliminates the energy consumption in the form of the forced water supply steam and / or air and / or water and improves the environmental performance of regions.

The way smokeless combustion gases to flare installation, which consists in submitting the combusted gases from the burner tip flares in the combustion zone, wherein the combusted gases serves of variable composition and flow with adjustable calculated velocities from 1 m/s to 3.5 speed of sound by creating a movable regulating device excess static pressure of combustion gas under him from 0.00001 to 3.0 MPa/cm2proportional to the speed of gas flow, when this jet (jet) gases have a form of limited thickness of the turbulent flow of gases with an angle of from 2 to 155° and the direction of the axis of the stream of combusted gases.



 

Same patents:

Flame plant head // 2244876

FIELD: burning emergency gas blowout at excessive pressure at inlet Pex=0.05 to 0.1 kg/sq cm; oil producing, oil refining and other industries.

SUBSTANCE: proposed head includes inlet gas supply branch pipe 1 with contraction pipes 2 and 3 located coaxially inside it. Upper contraction pipe has gas discharge injector 4. Besides that, gas supply branch pipe has accelerating chamber 6 in its inner cavity for delivery of steam-and-air mixture by means of branch pipes 5. Velocity of combustion products of gas being utilized is higher than gas velocity at inlet of gas supply branch pipe 1 owing to which ejection of air to cylindrical loop 8 is ensured in the amount sufficient for proper combustion of entire gas being utilized.

EFFECT: complete smokeless combustion of waste gas; enhanced ecological safety; reduced consumption of water steam; increased service life (up to 10 years).

1 dwg

Flame plant head // 2244875

FIELD: burning emergency gas blowout at excessive pressure at inlet of 0.05 to 0.1 kg/sq cm; oil producing and oil refining industries for utilization of gases of different chemical composition.

SUBSTANCE: proposed head has at least two coaxial vertical cylindrical loops 1 and 5 with gas supply branch pipes 3 and injectors 4. Number of loops varies from two to four depending on working parameters of gas to be burnt. Relative located of loops required availability of slot-shaped clearances between them for ejection of air inside head. Availability of first loop of accelerating chamber located in lower portion of head is obligatory. Accelerating chamber is made in form of cylindrical branch pipe at local construction inside it for increase of velocity of flow of combustion products. Each loop of head is provided with gas-and-air flow turbulizers 7. Head is provided with pilot burners 9 mounted in loops 1 and 5.

EFFECT: complete smokeless combustion of waste gas; enhanced ecological safety; reduced consumption of water steam; increased service life (up to 10 years).

1 dwg

Burner // 2244212

FIELD: combustion.

SUBSTANCE: burner has piping fuel collector made for permitting vertical movement, air duct provided with a piping collector, and distributing grid.

EFFECT: enhanced efficiency.

6 dwg

The invention relates to a method of combustion gases and the device tip flares

The invention relates to power engineering, in particular to the burning devices running on natural gas forced air supply is intended primarily for use in furnaces boilers

The invention relates to power engineering, in particular to the burning devices running on natural gas forced air supply is intended primarily for use in furnaces boilers

The invention relates to power engineering, in particular to the burning devices running on natural gas forced air supply is intended primarily for use in furnaces boilers

The invention relates to power engineering, in particular to the burning devices running on natural gas forced air supply is intended primarily for use in furnaces boilers

Gas burner // 2213299
The invention relates to a power system, namely the gas burners with forced air supply, and can be used as fuel combusting device wide application in industrial, agricultural, municipal and other gas equipment

The invention relates to power engineering, in particular to the burning devices running on natural gas forced air supply is intended primarily for use in furnaces boilers

FIELD: methods for burning of solid fuel.

SUBSTANCE: the method for salvaging of trinitrotoluene, whose term of safe storage has expired consists in the fact that trinitrotoluene is fed to the combustion chamber in a melted state (at a temperature of 80 to 90 C) and burnt off in the atmosphere of gaseous fuel-methane not containing oxygen in its composition, as a result of burning due to own oxygen of trinitrotoluene, a great amount of own carbon (soot) is extracted, which then finds industrial application. For burning of trinitrotoluene use is made of an installation including a combustion chamber, pressure regulators for delivery of molten trinitrotoluene and gaseous fuel (methane), electric igniter and a filter for catching soot.

EFFECT: provided safe method for salvaging of trinitrotoluene in the combustion chamber in the atmosphere of gaseous fuel (methane).

2 cl, 1 dwg

The invention relates to household heating devices operating on liquid fuel (kerosene, diesel and other) without the use of additional types of energy, namely the design of the furnace and the burner evaporative type, in which air for combustion is carried out under natural draught
The invention relates to methods of obtaining energy from substances

The invention relates to a small melting furnace with an ionic decomposition able to burn and melt the waste, such as metals, and waste type of household waste, waste paper, plastic, liquid waste and spent oils

The invention relates to thermal energy and can be used in steam boilers with coal-pulverization system direct injection fuel

The invention relates to the combustion of gaseous and liquid fuels in boilers and other heat consuming installations

The invention relates to a method of ignition and stabilization of combustion of carbon-containing liquid fuel

The invention relates to fuel combustion in the vibrational mode

FIELD: methods for burning of solid fuel.

SUBSTANCE: the method for salvaging of trinitrotoluene, whose term of safe storage has expired consists in the fact that trinitrotoluene is fed to the combustion chamber in a melted state (at a temperature of 80 to 90 C) and burnt off in the atmosphere of gaseous fuel-methane not containing oxygen in its composition, as a result of burning due to own oxygen of trinitrotoluene, a great amount of own carbon (soot) is extracted, which then finds industrial application. For burning of trinitrotoluene use is made of an installation including a combustion chamber, pressure regulators for delivery of molten trinitrotoluene and gaseous fuel (methane), electric igniter and a filter for catching soot.

EFFECT: provided safe method for salvaging of trinitrotoluene in the combustion chamber in the atmosphere of gaseous fuel (methane).

2 cl, 1 dwg

Up!