(57) Abstract:The inventive device includes a shaft with upper and lower inlet openings, the bars of round or rectangular cross-section with walls of different heights with the formation of the conical surface, mnogozubkovoy the nozzle, the angle formed by the conical surface and normal to the nozzle axis, is equal to 35 to 40. The gas flows through the manifold to the nozzle evenly distributed through the nozzle channels of the lattice, intensely soothing burns in the flow at the exit of antiflaming-stabilizer. 3 Il. 1 The invention relates to the processing of oil products, in particular to a device for combustion of the process gas in the petrochemical industry and solves the problem of reducing smoke and other gaseous emissions of toxic substances in the torches burning.Known flare the pipe burner for the combustion of the gas located in the upper exhaust outlet pipe. The pipe is provided with an external protective coating and pipeline to supply gas to the burner 
Known also flare the pipe closest to the technical essence of the present invention, containing the barrel with bottom inlet and ve education gap for admission of air from the environment, block gas burners provided with a collector supply incinerated process gas, installed in the lower inlet pipe 
In the flare of the pipe due to combustion in a confined pipe flow of air is provided by a relatively high combustion completeness in a narrow range of costs of gas flared.The disadvantage of this setup is that when you change the flow of combustion gas in a wide range, increases the unevenness of its distribution along the pipe section, blocks gas burners operate at off-design conditions under which combustion is outside of the optimum composition of the mixture occurs flameout in a separate burners, deterioration of combustion completeness, and as a consequence, increases the emission of soot particles and other gaseous toxic substances.The purpose of the invention, the reduction of harmful emissions and improving combustion efficiency of the process gas in a wide range of changes in its consumption.In Fig.1 shows a longitudinal section of the flare of Fig. 2 is a view As in Fig. 1 with the lattice in the form of rectangular channels; Fig. 3 is a view As Fig. 1 with a lattice made of axisymmetric shells.Flare-trubenik protective coating 4, installed on the gravel layer 5 through the uprights 6 with the formation of a gap for receipt of air from the environment. The height of the lower edge of the pipe above the earth's surface is limited to ensuring free access of atmospheric air to the inlet pipe. In the lower inlet 2 is a block gas burners 7, the collector 8 supply of combustion gas, as well as duty burner 9 is provided with a pipeline for supplying gas 10.Block gas burners 7 includes the grating 11 of round or rectangular cross-section, forming a series of channels made of walls of different heights with the formation from the gas inlet conical surface 12, the angle formed by the surface and normal to the axis of the burner equal =30-45.In the center of the grating 11 from the gas inlet includes a gas mnogozonovaya nozzle 13 provided with a manifold for supplying gas 8. For the lattice rectangular cross-section, the nozzle 13 is made flat (Fig. 2) and provided with two series of pairs of oppositely oriented nozzles 14. Each nozzle 14 of the gas nozzle 13 is located at the entrance of each row of the grid 11. The axis of the nozzle 14 is oriented along the cone is the range of the blowing angle of the jets provides a maximum range of jets in cross flow of air, allowing the change in the flow rate of combustion gas to change the surface combustion, i.e. it gives the self-regulation of the ratio of fuel to air.At the same time blowing jets of gas flared at an angle I to the pipe axis, is preserved component of velocity of these jets directed towards the exhaust. Thereby preserved ejection ability of these jets, which increases chimney.It is known that when the blowing jets in the incoming flow maximum range of the jet is provided at an angle of blowing =30-45. When the angle of blowing streams of process gas being flared at an angle to the air flow <30 decreases the range of the jet and, therefore, decreases the surface combustion, which results I pereobogaschennaya mixture of gas with air in the surrounding I the nozzle channels of the mixer and the deviation of combustion from the optimal mode.When the angle of blowing streams of process gas being flared at an angle I to the air flow >45reduced axial component of velocity of the jet in the direction of the exhaust, which reduces cravings pipe.In the proposed device the maximum range allows uniformly R is ozdoba to burn it.Behind bars 11 in the direction of gas flow is set entitlementality flame 15 in the form of a fine mesh or small sites, either in the form of a porous plate.The bars 11 may be made of spaced concentric to each I other axisymmetric shells 16 (Fig.3), separated by radial partitions 17 in a series of sector channels. The grating 11 from the gas inlet forms a conical surface 12. When the nozzle 13 is cylindrical, on the generatrix of which is radially mounted nozzle 14. The axis of the nozzle 14 is oriented along the conical surface 12 and each nozzle is located at the entrance of each row resetn 11.The dimensions of the channels of the grating 11 and their number is determined from the condition of education, the optimum composition of the mixture at the outlet of the channels, and sizes of nozzles nozzles of the conditions providing the maximum range of a gas jets, defined by the formula
< / BR>where the angle of inclination to the axis of the burner nozzles gas nozzles;
Wo, rothe speed and density of the expiration gas jets;
Wn,nthe speed and density of the surrounding air.The Central duty burner 9 is equipped with an electric spark plug 18.Torch t is redstem include spark plugs 18 and the gas supply to the pilot burner 9.The control of actuation of the pilot burner 9 is a thermocouple, then the spark plug 16 is turned off, and flare the pipe is ready for combustion of the process gas. Duty burner 9 has two functions: first, it provides primary burning process gas during its flow in the unit of gas burners 7, second minimum air flow through the flare pipe in General, due to the chimney (in the absence of the filing process gas), which increases the safety of the operation of the flare. Incinerated process gas flows through the manifold 8 to the gas nozzle 13. Through the nozzle 14 of the nozzle 13 technological combusted gas flows at an angle to the axis of the burner = 30-45oand evenly distributed over the part of the channel grating 11 is proportional to the depth of penetration of the jets of gas, i.e., the total flow of combustion gas.At minimal cost technological combusted gas flows through the nozzle 14 in the next channels grating 11, spaced from the axis of the nozzle at a distance equal to the range of the jet with minimal gas consumption. When increasing the flow rate of the process gas increases the range of the jets emanating from the nozzles 14 and the gas enters the following channels grating 11, the decision process gas with air and the formation of gas-air mixture to the optimal composition, which burns intensely in soothing stream at the output of antiflaming-stabilizer 16 with a minimum output CO, and soot. The distance from the axis of the nozzle 13 to the far channels is determined by the range of the jets of gas at the maximum flow rate of the process gas.Atmospheric air from the environment enters through the gap between the ground surface and the bottom cut of the pipe 1 into the inlet 2 and the channels of the grating 11. Supply of atmospheric air to the flare pipe operating modes is provided by the joint action of the thrust tube and ejection ability of the process gas jets coming in every single channel grating 11.Due to the proposed distribution of gas and air is samoreguliruemaja composition of the gas mixture in each channel of the lattice to the optimal virtually the entire operating range of the cost of gas flared.The resulting hot combustion products pass the torch pipe in conditions of high temperatures and the presence of a certain excess air. When this occurs, an additional oxidation process, which also contributes to reducing the content of all toxic compounds, in particular, NOxand sa is Yagodnoe hole 3. To prevent overheating of the walls of the barrel is provided by the barrier wall cooling air. Flare tube containing barrel with bottom inlet and top outlet, provided with a protective coating, set with a gap, a unit of gas burners, communicated with the reservoir for supplying process gas flared installed in the lower inlet, characterized in that, to reduce harmful emissions and improve the completeness of the combustion process gas in a wide range of changes in consumption, it is equipped with a grill made of walls of different heights with the formation from the gas inlet conical surface, installed behind bars along the gas antiflaming-stabilizer in the form of a fine mesh or small SOT, or a porous plate, the burner unit is made in the form mnogomodovoi injector installed in the center of the grill from the gas inlet, and each nozzle is located respectively at the input of each of a number of channels of the lattice, and the angle formed by the conical surface of the grating and the normal to the axis of the burner, equal to 30-45°.
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.
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
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 (BF BRN) 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; BF BRN is fuel flowrate to burners, kg/h; QF L is fuel low heating value as fired, kcal/kg; O2" is oxygen content in flue gases at combustion chamber outlet, %; VA O 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