Combustion chamber for burning pyrolysis gases of incineration plants

FIELD: burning waste gases of pyrolysis furnaces in reworking solid domestic wastes.

SUBSTANCE: proposed combustion chamber includes mixing chamber with active and passive nozzles mounted at its inlet; active and passive nozzles are connected respectively to compressed air source and to waste gas source; mixing chamber is made in form of diffuser at aperture angle of 10-18 deg; ratio of diameters of active and passive nozzles is equal to: Dact:Dpas=0.35-0.4.

EFFECT: enhanced economical efficiency of use of vapor-and-gas cycle.

2 cl, 1 dwg

 

The invention relates to equipment for burning waste gases of pyrolysis furnace plants for processing of municipal solid waste (MSW).

Known combustion chamber for combustion gases containing the mixing chamber and located at its input coaxial active and passive nozzles connected respectively to sources of compressed air and exhaust gases (Wimpheling. Combustion chamber for gas turbine engines. Engineering, 1984, str-210).

A significant drawback of such combustion chambers when used in the systems of heat recovery from the flue gases of furnaces for pyrolysis of MSW is that you cannot use for this purpose the most efficient combined cycle.

This invention eliminates this disadvantage. This is achieved by the fact that in the combustion chamber for combustion of waste gases containing the mixing chamber and located at its input coaxial active and passive nozzles connected respectively to sources of compressed air and exhaust gases, the mixing chamber is made in the form of a cone with opening angle 10-18°and the ratio of the diameters of the active Duct and passive Rpas nozzles is Dact/Rpas=0,35-0,4.

On the accompanying drawing shows a combustion chamber for combustion of waste gases formed during the pyrolysis of solid waste containing chamber is messenia 1 and located at its input coaxial active 2 passive 3 nozzles, connected respectively to sources of compressed air and exhaust gases, the mixing chamber 1 is made in the form of a cone with an angle α 10-18°and the ratio of the diameters of the active Duct and passive Rpas nozzles is Dact/Rpas=0,35-0,4.

The combustion chamber is as follows.

The active nozzle 2 from a source such as a compressor, is supplied compressed air, which is accelerated in the nozzle to a predetermined speed and out of the nozzle 2 in the form of a spray. In the process of mixing with the surrounding nozzle 2 passive pyrolysis gas stream of air creates a vacuum in the nozzle 3, making through the nozzle 3 absorbed the flow of pyrolysis gas. The latter is mixed in the chamber 1 with air and the resulting gas-air mixture burns in the chamber 1. Due to the cone shape of the latter in the chamber 1 there is an increase in pressure of the combustion products. This allows you to turn the energy of combustion into mechanical work on the shaft in a gas turbine. The heat of the exhaust gases, the latter can be used to generate steam in the HRSG. Thus, the proposed execution of the combustion chamber allows to effectively use the energy of the pyrolysis gas in combined-cycle power plant with high efficiency of modern heat engines.

Combustion chamber for combustion exhaust gas is in, formed during the pyrolysis of solid waste containing the mixing chamber and located at its input coaxial active and passive nozzles connected respectively to sources of compressed air and exhaust gases, characterized in that the mixing chamber is made in the form of a cone with opening angle 10-18aboutand the ratio of the diameters of the active Dact.and passive Dpass.nozzle is Dact/Dpas=0,35-0,4.



 

Same patents:

The invention relates to the oil industry and can be used for burning waste gas in the oil fields and refineries

The invention relates to furnaces for afterburning of flue gases and can be used to solve environmental problems incineration of household and industrial waste

The invention relates to the technology of low neutralization of exhaust gases technical carbon production

The invention relates to a device for the combustion gases generated during the combustion reaction, and can be used for secondary combustion of the combustion gases, technological and other furnaces, as well as for burning the exhaust process emissions

The invention relates to a method and apparatus for using energy from the environment, which may contain flammable substances, and, in particular, to the use of energy released during the cleaning of the environment by the burning of combustible materials

The invention relates to a firing processing chlorine-containing organic substances (Hove) and can be used for the disposal of the relevant industrial waste to produce hydrochloric acid in the form of a commercial product

The invention relates to the field of purification of industrial waste gases containing harmful organic substances by deep catalytic oxidation and can be used in chemical, petrochemical and other industries

FIELD: burning waste gases of pyrolysis furnaces in reworking solid domestic wastes.

SUBSTANCE: proposed combustion chamber includes mixing chamber with active and passive nozzles mounted at its inlet; active and passive nozzles are connected respectively to compressed air source and to waste gas source; mixing chamber is made in form of diffuser at aperture angle of 10-18 deg; ratio of diameters of active and passive nozzles is equal to: Dact:Dpas=0.35-0.4.

EFFECT: enhanced economical efficiency of use of vapor-and-gas cycle.

2 cl, 1 dwg

FIELD: the invention refers to apparatus of regenerative thermal oxidation with multi pass valves.

SUBSTANCE: the apparatus for regenerative thermal oxidation for gas processing has a combustion zone, the first heat exchanging layer keeping heat exchanging surroundings and connecting with the combustion zone; the second heat exchanging layer keeping heat exchanging surroundings and connecting with the combustion zone; a valve for alternate direction of the gas flow between the first and the second heat exchanging layers. At that the valve has the first valve passage and the second valve passage separated from the first valve passage; a flow distributor having an admission passage communicates with the help of fluid medium with the admission opening of the surroundings and an exhaust passage communicates with the help of fluid medium with exhaust opening of fluid surroundings. At that the distributor is fulfilled with possibilities of its the first and the second valve passages between the first position in which the first valve passage communicates with the help of liquid with the admission passage and the second valve passage communicates with the help of liquid surroundings with exhaust passage and the second position in which the indicated the first valve passage communicates with the help of the fluid surrounding with exhaust passage and the second passage of the entry of the valve with the help of liquid surroundings communicates with the admission passage. At that the distributor of flow has a blocking surface which blocks the flow through the first part of the first valve passage and through the second part of the second valve passage when the distributor of the flow is between the first and the second positions and is fulfilled with possibility of its turning to 180o between the first and thesecond positions. At that valve passage is divided as the first so is the second at least into two chambers and the first and the second parts of the valve passages are congruous.

EFFECT: simplifies the construction, provides comfort of controlling and exploitation and deep removal of volatile organic combinations.

22 cl, 12 dwg

FIELD: technologies for combustion of flush gases, including those under high pressure, during extraction and processing of natural gas and oil.

SUBSTANCE: body of burner, mounted on gas inlet pipe, is made conical with widened portion at upper portion, in the body additionally mounted are two catalyst elements, at lower portion on inlet section first catalyst element is positioned, and above on outlet section - second catalyst element, rotary shutters are mounted on base of conical body in additional way, so that in closed position they are in contact with first catalyst element, and open position between first catalyst element and body gap is formed, also, device is additionally provided with one or more main torches, mounted in gas inlet pipeline below rotary shutters and first catalyst element. Relation of diameters of first and second catalyst elements matches relation of debits of hydrocarbon gas, fed in normal mode and during salvo exhaust. Catalyst elements are manufactured either in form of cell-like structured blocks with direction of channels in parallel to direction of feeding of flush gases, or in form of block sections with granulated catalyst, for example, Rachig rings, or in forms of block sections with active-catalyst metallic shavings, or in form of blocks with active-catalyst metallic meshes.

EFFECT: higher ecological safety and fullness of combustion of flush gases in broad flow range, simplified construction and comfort of maintenance.

6 cl, 3 dwg

FIELD: the invention refers to industrial ecology and may be used for flameless purification of ejections of industrial enterprises.

SUBSTANCE: the reactor for catalytic purification of gaseous ejections has a cylindrical body, which interior surface is covered with a catalyst with a source of infrared radiation placed in the body, a tube heat exchanger located in the lower part of the body, a turbine mixer located in the upper part of the body and additionally - a permeable cylindrical drum out of the catalyst so that the axles of the symmetry of the drum and body coincide. The drum embraces the mixer and the source of infrared radiation fulfilled in the shape of a six-ends star is installed in the middle of the body so that its flatness is perpendicular to the axle of the symmetry of the reactor. The drawing off socket is connected with the tube space of the heat exchanger, and the feeding socket is located so as to provide heating of gaseous ejections with the heat of the gases moving out of the reactor.

EFFECT: increases effectiveness of purification of gaseous flow and reduces power inputs for heating the gas flow.

1 dwg

FIELD: burning combustible gas at pressure above atmospheric.

SUBSTANCE: proposed plant is used for burning lean gases; it consists of unit for burning gas at pressure above atmospheric including lean gas chamber, combustion chamber, heat regeneration section and exhaust; pipe line supplying lean gas to lean gas chamber; heat removal and pressure equalizing chamber and preheated air chamber; plant is also provided with pipe line supplying the compressed surrounding air to heat removal and pressure equalizing chamber, preheated air pipe line for delivery of preheated air to preheated air chamber; provision is made for hole for delivery of lean gas from lean gas chamber to combustion chamber and hole for delivery of preheated air from preheated air chamber to combustion chamber. Heat removal and pressure equalizing chamber is made for heat exchange between lean gas chamber, preheated air chamber and combustion chamber and compressed surrounding air; lean gas and preheated air are burnt in combustion pressure at pressure above atmospheric.

EFFECT: enhanced efficiency; minimum difference in pressure between gas and air chambers.

12 cl, 12 dwg

Head of torch plant // 2285863

FIELD: arrangements or devices for treating smoke or fumes.

SUBSTANCE: head comprises gas supply pipe with gas gate and protecting shield mounted outside and coaxially at the top end of the gas supply pipe. The protecting shield is composed of two baffles made of two hollow trancated cones mounted one on the other. The grater base of the top baffle faces downward, and that of the bottom baffle faces upward. The smaller base is connected with the gas supply pipe.

EFFECT: enhanced reliability and prolonged service life.

2 cl, 2 dwg

FIELD: power engineering.

SUBSTANCE: valve comprises rotatable housing provided with passage, outer unmovable ring seal of the housing, ring seal between the rotatable housing and outer unmovable ring seal of the housing that has bore made for permitting gas to flow to the passage or from the passage. The ring seal is movable with respect to the outer ring seal of the housing. The passage and the bore are made for permitting receiving the compressed gas to provide continuous sealing between the outer ring seal of the housing and ring seal when the housing rotates. The valve is additionally provided with means for permitting gas to flow through the radial passage and between the ring seal and outer unmovable ring seal of the housing and setting ring connected with the rotatable housing and locking ring that is mounted at a distance from the setting ring and connected with the rotatable housing. The ring seal is interposed between the setting ring and locking ring.

EFFECT: simplified structure and enhanced efficiency.

16 cl, 30 dwg

FIELD: toxic flue gas combustion technology for fuel-burning units.

SUBSTANCE: flue gases are neutralized in combustion chamber; total fuel flow is bifurcated; first fuel flow is mixed up with flue gases supplied to combustion chamber and second one is conveyed to combustion-chamber burners wherein it is burned in air environment and then passed to combustion chamber. Coke gas, flue gas, or blast-furnace gas, or generator gases, or mixture thereof can be used as fuel; total flowrate of flue gases (B"G) at combustion chamber outlet, total flowrate of fuel (BF) supplied to combustion chamber, flowrate of air (BA) supplied to combustion chamber, and flowrate of fuel (BFBRN) supplied to burners are found from following set of equations (1), (2), (3), (4):

, where B'G is flowrate of flue gases from combustion chamber outlet, kg/h; T'G is temperature of flue gases at combustion chamber inlet, °C; O'2 is oxygen content in flue gases at combustion chamber inlet, %; C'G is heat capacity of flue gases at combustion chamber inlet, kcal/kg; B"G is total flowrate of flue gases at combustion chamber outlet, kg/h; BF is total flowrate of fuel supplied to combustion chamber, kg/h; BFBRN is fuel flowrate to burners, kg/h; QFL is fuel low heating value as fired, kcal/kg; O2" is oxygen content in flue gases at combustion chamber outlet, %; VAO is theoretical air flowrate for burning 1 kg of fuel, kg/h; BA is air flowrate to combustion chamber, kg/h; TG" is gas temperature at combustion chamber outlet, °C; CG" is heat capacity of flue gases at combustion chamber outlet, kcal/kg; α is excess air coefficient. Temperature within combustion chamber is maintained between 850 and 1150 °C.

EFFECT: enhanced efficiency of flue gas neutralization in fuel-burning units.

1 cl, 1 dwg, 3 tbl, 1 ex

FIELD: chemical engineering.

SUBSTANCE: method comprises using gas made of a mixture of carbon dioxide and oxygen in the plasma burner. The plasma burner ionizes gas thus producing carbon monoxide and reactive oxygen that removes ash from the gas. Oxygen and vapor are sprayed and injected to chamber (3) that receives the device with plasma burner. The control system (6) is provided with feedback and controls the concentration of the production gas, nozzle, and plasma burner.

EFFECT: enhanced reliability.

29 cl, 3 dwg

FIELD: the invention is designed for ventilation and may be used at equipping industrial objects.

SUBSTANCE: the system of ventilation of an industrial object has local units of suction air with polluting substances, an airway connecting the local suction units with the suction branch pipe of a boiler's blow fan. The airway is connected through drainage with the pipeline located below it with condensed and liquid fractions of polluting substances. The pipeline is switched to the suction branch pipe of the boiler's blow fan.

EFFECT: increases reliability, economy of the ventilation system of an industrial object.

3 cl, 1 dwg

Up!