The cleaning device chimney
(57) Abstract:The device is used in the energy sector, in particular in the flue pipe industrial energy technology installations and structures, as well as in all sectors of the economy to remove different amounts of air, General ventilation, contain harmful impurities. The cleaning device of the chimney contains a flue 1, a cone-shaped nozzles 2, covering the side surface of the chimney 1, the output section, a curved plane with 3 guides and twisting ribs 4, a spiral groove 5 located on the inner surface of the conical nozzle 2, a cone-shaped perforated 6 and the annular gratispornos 7 located on the outer side of the lower base of the conical nozzle 2. 2 Il. The invention relates to energy, in particular to flues industrial energy technology installations and structures, and can be used in all sectors of the economy to remove different amounts of air, General ventilation, contain harmful impurities.Known annular nozzle chimney (ed. St. N 387189, CL F 23 J 17/00, 1973, BI N 27), containing ve is the end of the pipe with a gap and a conical support ring.The disadvantage is the low thrust due to the blowing side wind.Known ejecting device chimney, mainly for locomotives (ed. St. N 956917, CL F 23 J 17/00, F 23 J 11/00, 1982, BI N 33), containing cone-shaped nozzles covering the chimney with the formation of confused chamber in which is located a curved plane and the guide ribs.The disadvantage is the impossibility of flue gases from solid and vapor-gas condensing pollution emitted into the environment.The objective of the invention to improve the environmental situation in the work area CHP, boiler and other proseguire expelling the products of combustion into the environment through stacks of different heights by separation from flue gases solid particles of unburned fuel, products of combustion, liquid particles of condensed vapor-gas mixture.The task is solved in that the flue pipe is provided with a conical nozzle, covering her side surface of the output section, Grassmannian in the form of an annular groove, a conical perforated spiral grooves placed on the inner surface CONSOB is put on the outer side of the conical nozzle. As of the release of sarasani from a flue gas stream, under the action of wind, swirling curved planes and guides, twists and solid particles with droplets of condensed liquid by centrifugal forces to move towards the inner surface of the conical nozzle and fall into the spiral grooves in which, coagulase with liquid droplets and wcreplays, roll into a cone-shaped perforated and later in the annular gratispornos. In the result, prevents the emission of pollutants in the form of solid particles and condensed droplets of liquid, which ensures the maintenance of satisfactory environmental conditions in the area of industrial enterprises and the ambient atmosphere.In Fig. 1 shows a cleaning device of the chimney of Fig. 2 - section a-a in Fig. 1.The cleaning device of the chimney contains a flue 1, a cone-shaped nozzles 2, covering the side surface of the chimney 1, the output section, a curved plane with 3 guides and twisting ribs 4, a spiral groove 5 located on the inner surface of the conical nozzle 2, a cone-shaped perforated 6 andThe cleaning device chimney works as follows.The air flow surrounding the chimney, around the annular sludge trap 7, which surrounds the curved upper and lower curved plane 3, as well as guides and twisting of the ribs 4, twists, creating ejection effect by increasing the air velocity in the channel between the curved surface 3 and the outer surface of the chimney 1. Swirling flow of atmospheric air (wind thrust) contacting the gas stream emitted from a chimney, twists it, partially cooling. In the centrifugal forces acting on the solid particles of pollution in the stream of smoke they are discarded to the inner surface of the conical nozzle 2 and, falling into the spiral grooves 5, calming down there, they collide with other particles, escalated and roll into a cone-shaped perforated 6.The relative positions of the sludge trap 6 relative to the curved planes 3 is designed so that its portion in contact with the spiral grooves 5, is higher as compared with the curved surfaces 3 and the guide ribs 4, and in relation to the output secene spiral grooves 5, i.e. there is no effect of swirling flow on particle pollution, setiausaha of the spiral grooves 5 in a cone-shaped perforated 6.The ratio between the smaller and larger combinations of cone-shaped nozzle 2 is in the range from 1:2 to 1:2,5, which is determined (at a known velocity wind pressure determined average annual cold and warm period of weather-climatic zones of operation of industrial enterprises (for example, thermal power plants, boiler houses) the density change of the air flow when driving on curved surfaces, rails and twisting the ribs 4 and is, for example, from the expression
mandb- air density wind flow at the exit of the smaller and log in to a greater combination of cone-shaped nozzle, kg/m3;
D and d are the diameters of the larger and smaller sections of a conical nozzle, m;
w is the speed of the smoke stream before the output section of the chimney, m/s;
- kinematic viscosity of the smoke stream, which is rich in solid particles of dirt and the condensed liquid, m2;
k - coefficient of proportionality;
Re is the Reynolds criterion.Owls is ku, stimulating the process of cooling the flue gases by condensation of moisture vapour. Fine condensed moisture and solid particles is shifted to the periphery of a rotating cone-shaped nozzle 2, the blending of the flow of flue gas and air, a twist on curved surfaces 3, coarsens, and dust particles intensify the process of enlargement and condensation of moisture as is "condensation nuclei" (Bergland M. E. and others Fogs. - M.: Gidrometeoizdat, 1961).Thrown to the inner surface of the conical nozzle 2 drip moisture partially enlarged enters the spiral groove 5. The result is a more "vague" cooling of flue gases and better cleaning up of pollution.The advantage of the invention is that the device allows for more energy to carry out cleaning of the flue gases directed into the atmosphere from fuel combustion in CHP, boiler installations and other facilities producing contaminated gases into the environment, the process flow is carried by wind energy.The original design exploitational, and technological reliability of the process of separation of contaminants from the flue gas. The cleaning device chimney containing cone-shaped nozzle, a curved plane with the guide ribs, characterized in that it is provided with a cone-shaped perforated spiral grooves placed on the inner surface of the conical nozzle from the outlet cross section of it to the sludge trap connected to the bottom part with Grassmannian made in the form of an annular groove located on the outer side of the conical nozzle.
FIELD: water heating.
SUBSTANCE: boiler can be used for heating and hot water supplying. Boiler has rectangular closet provided with heat insulation and casing. There is furnace with burner, heat exchanger and branch pipe for letting combusting gas through outer wall of room's wall are disposed inside the closet. The branch pipe is provided with cassette filled with adsorption matter. Cassette is hermetically placed in branch pipe for letting combustion products out between casing of rectangular heat-protected closet and internal surface of outer wall of the room. Branch pipe for letting products of combustion out behind outer wall of the room is mounted in vertical and has cone-shaped muzzle with curvilinear planes and guides and twisting ribs.
EFFECT: improved ecological parameters of exploitation.
FIELD: recuperation of energy from hot gas.
SUBSTANCE: proposed method is used for recuperation of energy from hot gas having temperature above 650°C and absolute pressure above 1.7 bar; gas contains non-solidified compounds of alkali metals and particles. Proposed method includes the following stages: cooling gas to temperature below 550°C with the aid of shell-and-tube heat exchanger where hot gas is passed via inter-tube space and cooling water is passed via space inside tubes where steam is formed from which steam energy is recuperated; particles of gas are separated by means of one or more centrifugal separating units arranged in succession to obtain content of dust below 400 mg/Nm3; gas is expanded in expansion machine for recuperation of energy.
EFFECT: enhanced efficiency of recuperation.
16 cl, 1 dwg
FIELD: environmental protection; devices and the methods of control over NOx contents in the flue gases ejected from the boilers burning the carbonic fuels.
SUBSTANCE: the invention is pertaining to the device and the method of control over NOx contents in the flue gases ejected from the boilers burning the carbonic fuels. The method includes injection of the carbonic fuel and the air into the burning zone of the furnace of the boiler for incineration of the carbonic fuel in the conditions of oxidization and production of the flue gas includingNOx and CO, and directing the flue gas from the furnace into the section of the catalyst in the channel of the flue gas for restoration of NOx and CO and conversion of the NOx and CO without injection of the external reactant intoN2 and CO2 by usage of CO in the capacity ofthe deoxidizer for NOx on the catalyst in the catalytic section. The technical result of the invention is development of the device and the method for control over the NOx ejections from the boilers burning the carbonic fuels, which are maintaining the high thermal efficiency of the boilers without the increase of ejections of other pollutions and which do not use any external reactant.
EFFECT: the invention ensures development of the device and the method for control over the nitrogen dioxide ejections from the boilers burning the carbonic fuels, which are maintaining the high thermal efficiency of the boilers without the increase of the ejections of other pollutions and which do not use any external reactant.
18 cl, 2 dwg
FIELD: environmental protection processes.
SUBSTANCE: invention relates to environmental protection systems designed to detoxify industrial emissions of multiple-profile enterprises dealing with processing of all types of mineral raw materials and can be used for detoxifying emissions from metallurgical and chemical enterprises as well as those of heat-power complex. Process of invention comprises cooling and condensation of flue gases followed by withdrawal of condensate and treated gases. At the height of 2/3 chimney, flue gas is mixed with overheated (150-200°C) steam and cooling and condensation of steam-gas mixture are performed in atmosphere beyond the chimney. Condensate formed from air-drop flow is collected on trays on the area adjusting the basement of chimney.
EFFECT: reduced operation expenses on efficient purification of flue gas from solid and gaseous pollutants.
FIELD: the invention is assigned for cleaning air from combustion products and may be used in water heaters and heating apparatus.
SUBSTANCE: the boiler has a rectangular cupboard with heating protection and a jacket in which there a fire-chamber with a burner, a heat exchanger and an outlet socket of combustion products through an exterior wall of the premises on which there is a hermetically installed cassette with absorbing substance. The outlet socket has a cone-shaped nozzle with curvilinear planes and guide twisting ribs. The cone-shaped nozzle is fulfilled out of a bimetal, at that the material of the bimetal has from the side of the curvilinear planes a coefficient of thermal conductivity prevailing in 2,0-2,3 times higher the meaning of the coefficient of thermal conductivity of the material from the side of environment.
EFFECT: the invention provides maintaining of normalized parameters of the work of the gas heating boiler during prolong operation at availability of an impact on the cone-shaped nozzle as of positive so as of negative temperatures of the environment.
SUBSTANCE: invention relates to water heating and can be used for heating and hot water supply of apartments in residential houses. The gas heating boiler consists of thermally protected rectangular case with a casing accommodating a furnace with a torch, heat exchanger and branch pipe for combustion products output through an external wall of the premises, the said branch pipe being vertically installed and containing a cone-shaped nozzle with curvilinear planes along with directing and twisting edges. The branch pipe further incorporates a cartridge with adsorbing medium, tightly installed in the branch pipe for combustion products output between the casing of thermally protected rectangular case and internal surface of the premises external wall. The cartridge includes a vertical case supplied with top and bottom collectors, and lateral walls which, along with the section partitions installed in the said casing, are made zigzag and form in each section diffusers and confusors arranged in a chessboard order relative to the nearby sections.
EFFECT: decrease in harmful gaseous pollutants emitted into the air environment around the premises from a branch pipe for combustion products output.
FIELD: power industry.
SUBSTANCE: sanitary detachable device for heat generators of independent heat supply systems consists of housing equipped with inlet and outlet connection pipes of flue gas inlet and outlet, inside which in a staggered order one above the other there arranged are detachable horizontal perforated baskets filled with mixture of crushed burnt lime Ca(OH)2 and absorbent carbon, which are laid on support angles and covered with a grid coated with high-viscous fuel oil layer. At that, under lower basket there is horizontal row of perforated pipes the right edges of which are connected to holes made in the right vertical wall of the housing, which is closed with a cover with air connection pipe in which an axial fan is arranged, and left edges are plugged with left vertical wall of the housing. At that, under the rest of the above-located baskets there also arranged are horizontal rows of pipes the left edges of which are connected to the holes made in left vertical wall of the housing, and right edges are connected to the holes made in right vertical wall of the housing; flue gas outlet connection pipe is connected to atmosphere through a stack and deflector and equipped from below with a conical tray connected through a hydraulic lock to drain pipeline.
EFFECT: increasing economic and ecological effectiveness of multiple-section flue gas cleaning and utilising unit of heat generator of independent heat supply system.
FIELD: power engineering.
SUBSTANCE: proposed sanitary attachment for a roof boiler house comprises a body with a pyramidal bottom, equipped with a nozzle for exhaust of smoke gases, inside of which in a staggered order one above another there are detachable horizontal perforated baskets arranged, filled with a mixture of slaked lime Ca(OH2) and activated carbon crumb, laid onto support angles and closed with cells of an oil filter, comprising nets coated with a layer of viscin oil, at the same time under the lower basket in the pyramidal bottom there is a window connected with a plate air heater arranged so that its gas channels communicate with a window and via a cover of an air heater, a nozzle for inlet of smoke gases - with an outlet nozzle of steam generator smoke gases, and air channels at the bottom and on the top communicate with lower and upper zones of a boiler house room, accordingly, besides, a nozzle for exhaust of smoke gases communicates with atmosphere via a stack and a deflector, the pyramidal bottom of the body is connected via a hydraulic lock with a drainage pipeline.
EFFECT: increased economic and ecological efficiency of a sanitary attachment of a heat generator in a roof boiler house.
FIELD: power engineering.
SUBSTANCE: method to reduce pollution created with a combustion source includes the following operations: contact of a fluid flow leaking out of a combustion source and containing sulphur oxides, with a solid material, formed as a result of mixing of a sludge component, having one or several chemically active silicate compounds, with a binding component, besides, before contacting, the fluid flow has temperature of approximately less than 600°F (316°C), at the same time sulphur oxides available in the fluid flow are removed after contact to provide for efficiency of removal that is more than or equal to 70%, compared to the initial quantity of sulphur oxides, available in the fluid flow before contact. Also a system is described for reduction of pollution extent, as well as a method of pollution extent reduction.
EFFECT: reduced extent of air pollution.
26 cl, 5 dwg
SUBSTANCE: device for treatment of smoke gases comprises a condenser, arranged above a stack in the form of a dome, a condensate collector, comprising a tray and a rainwater pipe, and a truncated cone mounted on the stack and connected by a semicylindrical surface with the condenser base, at the same time on the outer surface of the condenser there are longitudinally arranged louvers, each element of which is a wing, the profile of which in the area of contact with the dome corresponds to its contour, and on the side surface of the truncated cone from its smaller base to the larger base there are helical grooves in the form of a "dovetail", besides, helical grooves near the larger base of the truncated cone are connected with the tray. The stack is equipped with a thermoelectric generator arranged in the form of a body with a through channel for smoke gases and a set of differential thermocouples, "hot" ends of which are installed in the through channel for smoke gases, and "cold" ends are arranged on the outer surface of the body of the thermoelectric generator outside the channel for smoke gases, besides, the input of the through channel is connected with the output of the stack, and the output of the through channel is connected with the inner surface of the dome-shaped jacket.
EFFECT: reduced energy intensity when providing safe operation of a height structure of a stack, increased efficiency of treatment.
SUBSTANCE: deflector comprises a cover made of a hollow cone or pyramid over the chimney and secured to the vertical rods above the chimney of diameter D. The top of the hollow cone or pyramid points downward and is mounted at a height of h > 0.65D above the chimney. The top exit of the chimney is provided with the funnel which is secured to the rods. The top edges of the narrow section of the funnel are in a contact with the top edges of the chimney.
EFFECT: enhanced efficiency.
FIELD: natural extraction of air from the rooms, applicable in ventilation.
SUBSTANCE: the deflector has an outer cylindrical housing, branch pipe with a hood, restrictor, circular shield in the mouth of the branch pipe forming a clearance with the cylindrical housing, all these components are coaxially positioned in the housing. A collector is installed at the inlet to the branch pipe net section from the inner side of the roofing, and additionally installed in the vertical axis of the branch pipe with the hood above it is an air conduct coupled to the Venturi tube with a wind vane fixed to it.
EFFECT: enhanced developed head, maximized use of the wind load, and reduced local-friction coefficient.
3 cl, 1 dwg
SUBSTANCE: proposed pipe comprises case with a protective bonnet and is distinguished for its outlet channel representing openings in the pipe case. Note that aforesaid pipe is furnished with the tapered deflector, its cone apex facing escaping gases, and the device to translate the said deflector relative to the aforesaid openings and to lock it inside the case.
EFFECT: expanded performances ensured by exhaust gas amount adjustment.
3 cl, 4 dwg
SUBSTANCE: proposed deflector incorporates two taper-surface funnels attached to vertical rods arranged on chimney portal. The lower funnel narrow-section upper edge is set in contact with the chimney top outer edge. The upper funnel is arranged at the height of (0.3 to 0.6) D from the lower funnel, where D is the chimney outer diameter. At least for guide vanes, also attached to the aforesaid vertical rods, are arranged between the said funnels at the angle of α=(5° to 45°) to the chimney radius. The funnels feature different angles of inclination to the horizontal plane to provide for the difference between the ejection inlet and outlet effects.
EFFECT: high-efficiency wind energy exploitation to increase chimney draught.
FIELD: heating, ventilation.
SUBSTANCE: device is designed for natural channel ventilation of buildings and structures for various purposes: residential, public, industrial, as well as cellars, basements, garages and others. The device is an ajutage in the form of a Venturi pipe, consisting of a contractor, a throat and a diffuser, a throat channel, which is connected to the inner cavity of the vent-pipe (mine) with a socket on the slide bed on its side surface.
EFFECT: air exchange with the environment is increased; use of ventilators for mechanical removal of air environment is excluded, ie, it contributes to saving of material resources and energy resources.
FIELD: power engineering.
SUBSTANCE: method to increase durability and to improve characteristics of a flare tip, when a coating made of material with low coefficient of radiation is applied onto one or more surfaces of the flare tip component to reduce direct radiation of flame and heat conductivity during operation of the flare tip. The coating is applied onto surfaces of a flare barrel, a burner element and/or a stabilising tab of the flare tip. The surface (surfaces), onto which the coating is applied, is exposed to the direct exposure of the flame during operation of the flare tip. The coating is applied onto internal and/or external components of the flare tip, which are not the burner. The coating material with low coefficient of radiation has coefficient of radiation of less than approximately 0.80. The coating material with low coefficient of radiation has thickness between from approximately 1 mil to approximately 25 mil. The density of material with low coefficient of radiation in the coating makes from at least approximately 65%.
EFFECT: invention makes it possible to increase operational reliability of flare tips.
22 cl, 1 dwg