CN102803853B - The exhaust air treatment plant of heating power - Google Patents

The exhaust air treatment plant of heating power Download PDF

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Publication number
CN102803853B
CN102803853B CN201180014368.8A CN201180014368A CN102803853B CN 102803853 B CN102803853 B CN 102803853B CN 201180014368 A CN201180014368 A CN 201180014368A CN 102803853 B CN102803853 B CN 102803853B
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China
Prior art keywords
heat exchanger
outside
exhaust air
heating power
treatment plant
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CN201180014368.8A
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Chinese (zh)
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CN102803853A (en
Inventor
托尔斯滕·吉辛
埃哈德·里德
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Durr Painting Systems Engineering (shanghai) Co ltd
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Duerr Systems AG
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Publication of CN102803853A publication Critical patent/CN102803853A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
    • F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
    • F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/50—Control or safety arrangements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Incineration Of Waste (AREA)

Abstract

In order to complete a kind of exhaust air treatment plant of heating power, it comprise combustion chamber and for the heat trnasfer of pure qi (oxygen) body that produces in the future comfortable combustion chamber to the heat exchanger to be delivered to the thick gas of combustion chamber, wherein, heat exchanger comprise by fluid media (medium) energy percolation in interior heat exchanger space and the heat exchanger space outside by fluid media (medium) energy percolation outside, the exhaust air treatment plant of this heating power does not make the adjustment of clean gas discharge temperature become possibility with reducing clean GAS QUALITY, advise as follows: the exhaust air treatment plant of heating power comprises by-pass collar, this by-pass collar is with separation equipment, the part of fluid stream outside can by this separation equipment with residual fluid flow point outside from being used as bypass flow stream, and this by-pass collar is also with being mixed into equipment, bypass flow stream is mixed into equipment can be mixed into again in residual fluid stream after a section in heat exchanger space outside at residual fluid stream by this.

Description

The exhaust air treatment plant of heating power
Technical field
The present invention relates to the exhaust air treatment plant of heating power, the exhaust air treatment plant of this heating power comprise combustion chamber and for the heat trnasfer of pure qi (oxygen) body that produces in comfortable combustion chamber in the future to the heat exchanger to be delivered to the thick gas of combustion chamber, wherein, heat exchanger comprise by fluid media (medium) energy percolation in interior heat exchanger space and the heat exchanger space outside by fluid media (medium) energy percolation outside.
Background technology
The pure qi (oxygen) body of being discharged by the exhaust air treatment plant of this heating power is normally used for other thermodynamic process, therefore must regulate clean gas discharge temperature when discharging from the exhaust air treatment plant of heating power.
In order to regulate clean gas discharge temperature, conventionally use inner hot gas bypass flap.Very hot pure qi (oxygen) body is made directly to be directed through the pure qi (oxygen) body-thick gas heat exchanger of the inside of the exhaust air treatment plant of heating power by combustion chamber and to be directly mixed into the pure qi (oxygen) body of being discharged by the clean gas vent of pure qi (oxygen) body-thick gas heat exchanger by opening or partially open this valve to realize.Then the mixed flow be made up of the pure qi (oxygen) body of the direct heat from combustion chamber and the pure qi (oxygen) body that cools in pure qi (oxygen) body-thick gas heat exchanger reaches a mixing temperature, and this mixing temperature is corresponding to desired clean gas discharge temperature.
But with in the exhaust air treatment plant of the heating power of compact make, on the end that this hot gas bypass flap structure type is arranged in combustion chamber with causing and when the bypass flap of closing the reaction chamber of the waste gas percolation in origin spontaneous combustion chamber beginning on.
Thus, waste gas to be cleaned was extended in the time of staying in order to the harmful substance comprised within it be transformed completely in required reaction temperature.
In order to fully terminate all conversion reactions, be necessary that and maintain the sufficiently long time of staying, the exhaust air treatment plant of this time of staying for each heating power is fixing and usually between 0.8 second and 1.2 seconds.In the case, refer to the stop durations of the gas molecule in so-called reaction compartment as the time of staying, reaction compartment forms by combustion chamber with around the reaction chamber of combustion chamber.The time of staying enters combustion chamber along with thick gas by burner and starts and enter in pure qi (oxygen) body-thick gas heat exchanger along with pure qi (oxygen) body to terminate, and in pure qi (oxygen) body-thick gas heat exchanger, pure qi (oxygen) body is cooled by the heat trnasfer to thick gas.
When present take out the shunting of waste gas by hot gas bypass flap time, this shunting no longer flows through reaction chamber, but after combustion chamber, just leaves reaction compartment.Shorten the time of staying of this shunting for waste gas thus, and cannot terminate whole conversion reactions in this shunting, these conversion reactions are required for harmful substance is eliminated completely.
Thus, the product qualitative change grain of the pure qi (oxygen) body of being discharged by the exhaust air treatment plant of heating power.
Be for the known means to save the situation of this problem, insert in reaction compartment by other turn-around chamber, this turn-around chamber compensate for the shortening of the time of staying for the waste gas shunting of being taken out by hot gas bypass flap at least partly.But the defect of this turn-around chamber is, this turn-around chamber structure type reduces the time of staying of the shunting of taking out for obstructed overheated gas bypass flap with causing.In order to compensate the minimizing of the time of staying, the exhaust air treatment plant of heating power must construct longer and become large on volume, which increases the space requirement of the exhaust air treatment plant of heating power.
Summary of the invention
Therefore the present invention is based on following task, that is, complete the exhaust air treatment plant of the heating power of the type mentioned by beginning, it makes to become possibility when not reducing clean GAS QUALITY to the adjustment of clean gas discharge temperature.
Above-mentioned task is solved by the exhaust air treatment plant of following heating power, that is:
The exhaust air treatment plant of heating power, comprise combustion chamber and for the heat trnasfer of pure qi (oxygen) body that produces in the future comfortable combustion chamber to the heat exchanger to be delivered to the thick gas of combustion chamber,
Wherein, heat exchanger comprise by fluid media (medium) energy percolation in interior heat exchanger space and the heat exchanger space outside by fluid media (medium) energy percolation outside,
Wherein, heat exchanger comprises the heat exchanger tube be made up of a large amount of Tube Sheet of Heat Exchanger, and the inner space of these Tube Sheet of Heat Exchanger together form in interior heat exchanger space, Tube Sheet of Heat Exchanger then define heat exchanger space outside by the space outerpace of heat exchanger shell boundary,
Wherein, the exhaust air treatment plant of heating power comprises by-pass collar, by-pass collar is with separation equipment, can by separation equipment by a part for fluid stream outside with residual fluid flow point outside from being used as bypass flow stream, and by-pass collar is with being mixed into equipment, bypass flow stream can be mixed into again in residual fluid stream at residual fluid stream by the equipment of being mixed into after the section in heat exchanger space outside, wherein, by-pass collar comprises bypass passageways, and bypass passageways is ringwise around the flow path of residual fluid stream.
The present invention is based on such conception, namely, regulate the clean gas discharge temperature of the exhaust air treatment plant of heating power in the following way, namely, a part for fluid stream outside gets around a section of the pure qi (oxygen) body-thick gas heat exchanger of the exhaust air treatment plant of heating power, can reduce efficiency of heat exchanger thus in affined mode.
At this, fluid stream outside can relate to the thick gas flowing to heat exchanger or the pure qi (oxygen) body flowing to heat exchanger.
With the use of hot gas bypass flap by contrast, the time of staying in the reaction temperature of waste gas in reaction compartment under any circumstance can not be shortened due to this division of fluid stream outside.
Clean gas discharge temperature T acan regulate simply by such as under type by the pure qi (oxygen) body that can regulate by the present invention-thick gas heat exchanger, that is, the share that bypass flow stream accounts for total fluid stream is outside changed.
The share that bypass flow stream accounts for total fluid stream is outside larger, and lower and therefore on the clean gas vent of the exhaust air treatment plant of heating power the clean gas discharge temperature of efficiency of pure qi (oxygen) body-thick gas heat exchanger is higher.
Arrange in preferred design of the present invention, bypass flow stream comprises at least one by the equipment that is mixed into that it can be mixed into again in residual fluid stream and is mixed into position, and this is mixed into position and extends at least half of the periphery of the flow path of residual fluid stream.Realize cold bypass flow in this way and flow to being as far as possible mixed into uniformly in the residual fluid stream heated in the section of the process in heat exchanger space outside.
Particularly advantageously, the equipment of being mixed into comprises at least one and is mixed into position, and this is mixed into position and extends at least 90% on 2/3 of the periphery of residual fluid stream, especially.
Particularly advantageously, this is mixed into position and substantially extends on the whole periphery of residual fluid stream.
Arrange in preferred design of the present invention, this is mixed into position and extends around the flow path of residual fluid stream ringwise.
By a big chunk without pre-warmed bypass flow stream this periphery in other words on the whole periphery of residual fluid stream is mixed into the very good mixing achieving two stock streams.
Thus avoid the defect that obtains when being mixed into by means of only pipeline local, that is, heating power unbalance and the heating power stress in the region of facility shell that causes thus, these heating power stress affect the service life on exhaust air treatment plant negatively.
When two stock streams have very different viscosity based on different temperature, so flow to the uniform mixing that being mixed in a big chunk of the periphery at residual fluid stream in residual fluid stream also adjusts two stock streams by bypass flow.
The thermodynamic behaviour of exhaust air treatment plant is improved by the high uniformity of the total fluid stream mixed by bypass flow stream and residual fluid stream.
Alternative or be complemented at extend at least half of the periphery of residual fluid stream be mixed into position, the equipment that is mixed into also can comprise and is multiplely mixed into position, wherein, these are mixed into position and are distributed in and are mixed on region, and this is mixed into region and extends at least half of the periphery of residual fluid stream.
Particularly advantageously, region extension on 2/3, preferably at least 90% of the periphery of residual fluid stream is mixed into.
In the preferred design of exhaust air treatment plant, be mixed into region and substantially extend on the whole periphery of residual fluid stream.
Bypass flow stream preferably carried out at least in part, especially mainly with mixing of residual fluid stream in the blending space of Tube Sheet of Heat Exchanger not comprising heat exchanger.Thus avoid cold bypass flow stream and directly load Tube Sheet of Heat Exchanger, this can cause very high heating power stress.
Blending space especially can outside the heat exchanger tube being arranged radially at heat exchanger.
By-pass collar can comprise following bypass passageways, and this bypass passageways is ringwise around the flow path of residual fluid stream.
By this bypass passageways, bypass flow stream is arrived by separation equipment and is mixed into equipment.
Bypass passageways preferably extends in a part for heat exchanger length, preferably on 1/3 of heat exchanger length, especially at least half of heat exchanger length.
In order to as far as possible homogenising bypass flow flows through the distribution that bypass passageways surmounts the whole cross section of bypass passageways, by-pass collar preferably comprises at least one restricting element at the flow path of bypass flow stream.
This restricting element especially can be configured to the flow obstacle with multiple through hole.
Bypass passageways can in the open tubular column bodily form, ground constructs especially substantially.
When the multiple through holes in fluid barrier overall by face be by-pass collar enter cross section 150% or less, especially 125% or less time, achieve bypass flow stream in bypass passageways by the distribution good especially on cross section.
In order to not improve the flow resistance of restricting element too consumingly, in addition advantageously, multiple through holes overall in circulation obstacle is enter cross section 50% of by-pass collar or more, especially 75% or more by face.
Arrange in preferred design of the present invention, be mixed into apparatus arrangement flows out the outlet in heat exchanger space outside upstream at fluid media (medium) outside.Also carry out bypass flow flow to being mixed in residual fluid stream in pure qi (oxygen) body-thick gas heat exchanger inside thus, thus achieve fluid stream outside from before heat exchanger flows out (that is when fluid thick gas is used as in combustion chamber, or when pure qi (oxygen) body is used as outer fluid in clean gas piping), two stock streams are mixed well mutually.
In order to control or regulate the clean gas discharge temperature of the exhaust air treatment plant of heating power in a straightforward manner, advantageously, separation equipment comprises and flows to bypass flap in by-pass collar for controlling bypass flow and flow to heat exchanger valve in heat exchanger for controlling residual fluid.
Preferably, bypass flap and heat exchanger valve machinery Shangdi and/or control technology Shangdi (that is by manipulating by the coordination of the control appliance of the exhaust air treatment plant of heating power) are coupled to each other in the case.
This connection is such as realized by suitable valve mechanism.
Preferably perform the connection of two valve like this, namely, bypass flap open motion side by side along with the closing movement of heat exchanger valve carries out, vice versa, wherein, the cross section that enters of by-pass collar is become large by the motion of opening of bypass flap, and the cross section that enters in heat exchanger is diminished by the closing movement of heat exchanger valve.
By the connection of bypass flap and heat exchanger valve, preferably substantially infinitely whole fluid stream outside can be divided into bypass flow stream and residual fluid stream, efficiency of heat exchanger and then clean gas discharge temperature can be regulated thus in a straightforward manner.
Separation equipment is preferably placed in the upstream of the entrance in the heat exchanger space that residual fluid flows to outside.To flow in heat exchanger at residual fluid thus and before being heated or cooled in this heat exchanger, fluid stream be outside divided into bypass flow stream and residual fluid stream.Arrange in the special design of the exhaust air treatment plant by heating power of the present invention, heat exchanger space outside can by the thick gas percolation to be delivered to combustion chamber.In this case, thick gas is used as outer fluid.
Alternatively also can arrange, heat exchanger space outside can by the pure qi (oxygen) body percolation produced in combustion chamber.Pure qi (oxygen) body is used as outer fluid in this case.
The present invention relates to the method for comprising the thick gas flow of oxidable component by the exhaust air treatment plant purification of heating power in addition, and the method comprises following method steps:
-thick gas flow is flowed to combustion chamber;
-produce clean gas flow by least part of oxidation of the oxidable component of thick gas flow in combustion chamber;
-in the future the heat of self-cleaning gas flow pass to thick gas flow by heat exchanger, wherein, heat exchanger comprise by fluid media (medium) percolation in interior heat exchanger space and the heat exchanger space outside by fluid media (medium) percolation outside.
The present invention is based on other task following, that is, create the method for aforementioned type, the method makes the adjustment of clean gas discharge temperature become possibility, and can not damage the quality of pure qi (oxygen) body.
This task solves as follows, that is:
For containing the method for the thick gas flow that can be oxidized component by the exhaust air treatment plant purification of heating power, comprise following method steps:
-thick gas flow is flowed to combustion chamber;
-produce clean gas flow by least part of oxidation that can be oxidized component of thick gas flow in combustion chamber;
-give thick gas flow by the heat trnasfer of heat exchanger self-cleaning in the future gas flow, wherein, heat exchanger comprise by fluid media (medium) percolation in interior heat exchanger space and the heat exchanger space outside by fluid media (medium) percolation outside, and, wherein heat exchanger comprises the heat exchanger tube be made up of a large amount of Tube Sheet of Heat Exchanger, the inner space of these Tube Sheet of Heat Exchanger together form in interior heat exchanger space, Tube Sheet of Heat Exchanger then define heat exchanger space outside by the space outerpace of heat exchanger shell boundary;
-by by-pass collar separation equipment using a part for fluid stream outside with residual fluid flow point outside from as bypass flow stream;
-at residual fluid stream after the section in heat exchanger space outside, bypass flow stream is mixed in residual fluid stream by the equipment that is mixed into by by-pass collar,
Wherein, by-pass collar comprises bypass passageways, and bypass passageways is ringwise around the flow path of residual fluid stream.
The exhaust air treatment plant of recuperation formula is preferably configured as, with the pure qi (oxygen) body-thick gas heat exchanger of recuperation formula by the exhaust air treatment plant of heating power of the present invention.
Because clean gas discharge temperature can be improved when needed by the adjustable heat exchanger used in the exhaust air treatment plant by heating power of the present invention when utilizing by-pass collar, meaningfully, not be designed on the nominal discharge temperature of pure qi (oxygen) body by the operating point of the exhaust air treatment plant of heating power, but be designed in lower slightly temperature, preferably in the temperature of low at least 10 DEG C, especially in the temperature of low about 20 DEG C.
So clean gas discharge temperature T needed for reality can be regulated by heat exchanger by the adjustment of bypass flap and heat exchanger valve at the exhaust air treatment plant run duration of heating power a.
In the stage that the less heat of heat exchanger by the exhaust air treatment plant being placed on heating power declines, then such as produce suspend in can be adjusted on the as far as possible low clean gas discharge temperature of operating point, to save energy.
In all adjusting positions of heat exchanger, the whole time of staying of waste gas in reaction compartment retentively obtains.
Can not use hot gas bypass flap in the exhaust air treatment plant by heating power of the present invention regulate clean gas discharge temperature.
Therefore also can cancel this hot gas bypass flap, the pure qi (oxygen) body of heat directly arrives the clean gas vent of exhaust air treatment plant from combustion chamber by this hot gas bypass flap.
In order to the clean gas discharge temperature of the exhaust air treatment plant of heating power can be improved in case of need further, except by-pass collar, such hot gas bypass flap also can be provided with by the exhaust air treatment plant of heating power of the present invention.
Waste gas to be clean does not remain identical with relying on the adjusting position of by-pass collar with the time of staying in the reaction chamber of then combustion chamber or in the clean gas passage of then combustion chamber in combustion chamber.
The primary energy demand of the exhaust air treatment plant of heating power is reduced significantly in pause runs.
Being mixed into uniformly of residual fluid stream in heat exchanger is flowed to around the arranged concentric of heat exchanger and by realizing bypass flow by restricting element homogenising by the bypass flow stream of by-pass collar in particular by by-pass collar.
Thus achieve the optimum efficiency of heat exchanger and the uniform Temperature Distribution in the exhaust air treatment plant of heating power, this is to the particular importance in service life improving exhaust air treatment plant.
When thick gas formation is divided into the fluid stream outside of bypass flow stream and residual fluid stream, so this two stocks stream was mutually mixed equably before thick gas enters burner, realized the stable purification efficiency of exhaust air treatment plant thus.
Bypass flow stream in a big chunk of the periphery of residual fluid stream, preferred being evenly mixed on the entire circumference, the heating power stress caused by thermograde is dropped to minimum degree.
When the exhaust air treatment plant of heating power designs in this wise, thus during the nominal discharge temperature of the design temperature in the operating point of the exhaust air treatment plant of heating power lower than pure qi (oxygen) body, by the heat exchanger that can regulate, both can be adjusted in the temperature higher than nominal discharge temperature at the clean gas discharge temperature of the operating reality of the exhaust air treatment plant of heating power, can be adjusted to again in the temperature lower than nominal discharge temperature.
Accompanying drawing explanation
Other Characteristics and advantages of the present invention is the theme of ensuing description and embodiment accompanying drawing.
In accompanying drawing:
Fig. 1 shows the schematic block diagrams of the exhaust air treatment plant of the heating power with adjustable pure qi (oxygen) body-thick gas heat exchanger, in this pure qi (oxygen) body-thick gas heat exchanger, the bypass flow stream of thick gas can before entering heat exchanger with the residual fluid flow point of thick gas from and this bypass flow stream can by heat exchanger out before be mixed into again residual fluid stream;
Fig. 2 show the exhaust air treatment plant through the heating power from Fig. 1 combustion chamber, around the pure qi (oxygen) body-thick gas heat exchanger of this combustion chamber with separation equipment and the schematic longitudinal sectional of by-pass collar being mixed into equipment;
Fig. 3 shows through combustion chamber, around the pure qi (oxygen) body-thick gas heat exchanger of this combustion chamber with separation equipment and the schematic longitudinal sectional of the second form of implementation of by-pass collar being mixed into equipment;
Fig. 4 shows the enlarged drawing by the region I of Fig. 3;
Fig. 5 shows the enlarged drawing by the region II of Fig. 3;
Fig. 6 along with the direction of observation on the direction of arrow 6 in figure 3 show to the thick gas access in heat exchanger and in the region of the thick gas access in by-pass collar from top to the exhaust air treatment plant of the heating power by Fig. 3 schematic plan;
Fig. 7 shows the cross-sectional views of the exhaust air treatment plant through the heating power by Fig. 3 along the line 7-7 in Fig. 3;
Fig. 8 shows the schematic diagram by the Multi-layer exchanging heat organ pipe bundle of the pure qi (oxygen) body of the exhaust air treatment plant of the heating power of Fig. 3-thick gas heat exchanger;
Fig. 9 shows the cross-sectional views of the exhaust air treatment plant through the heating power by Fig. 3 along the line 9-9 in Fig. 3;
Figure 10 shows the explanatory view of the ringwise restricting element in the by-pass collar of the exhaust air treatment plant of the heating power by Fig. 3;
Figure 11 shows from top to the schematic plan the separation equipment of the by-pass collar of the exhaust air treatment plant of the heating power by Fig. 3;
Figure 12 shows by the front schematic view of the separation equipment of Figure 11 along with the direction of observation on the direction of arrow 12 in fig. 11;
Figure 13 shows by the schematic plan on the driving arrangement of the separation equipment of Figure 11 and 12;
Figure 14 shows the schematic side elevation of the driving arrangement for separation equipment along with the direction of observation on the direction of arrow 14 in fig. 13; And
Figure 15 shows the schematic block diagrams of the third form of implementation of the exhaust air treatment plant of the heating power with adjustable pure qi (oxygen) body-thick gas heat exchanger, wherein, the bypass flow stream of pure qi (oxygen) body can before pure qi (oxygen) body enters pure qi (oxygen) body-thick gas heat exchanger with the residual fluid flow point of pure qi (oxygen) body from, and the bypass flow stream of pure qi (oxygen) body can by pure qi (oxygen) body-thick gas heat exchanger out before be mixed into again the residual fluid stream of pure qi (oxygen) body.
The element that identical or function is suitable all marks with same Reference numeral in all of the figs.
Detailed description of the invention
The exhaust air treatment plant of heating power that illustrate in fig. 1 and 2, that use Reference numeral 100 to mark as a whole, as the schematic block diagram from Fig. 1, comprise combustion chamber 102, the combustion chamber entrance of this combustion chamber is furnished with burner 104, suitable fuel, such as natural gas can flow to this burner by the fuel conduit 106 of carrying fuel valve 108, and then can flow to this burner by the cooling-air pipeline 110 of band cooling-air valve 112 for the cooling-air of ignitor, sight glass and flame monitoring.
Waste gas to be cleaned is mist, and it contains oxidable component, such as volatile organic compound.
The oxidable component of waste gas is oxidized and then become harmless in combustion chamber 102 together with the fuel added.
Next mist that flow to combustion chamber 102, that comprise incendivity component is called as thick gas.
Next the mist produced by the oxidation of the oxidable component of thick gas in combustion chamber 102 is called as pure qi (oxygen) body.
Thick gas is from thick gas source that is that schematically show and that mark with Reference numeral 114 pure in Fig. 1.
The thick gas volume flow carried by the runic gas source 114 of the exhaust air treatment plant 100 of heating power is preferably at least 1000Nm 3/ h (1Nm 3=1 standard cubic meter), especially at least 10000Nm 3/ h.
Flowed to the thick gas access 116 of the exhaust air treatment plant 100 of heating power by thick gas transfer pipeline 118 from the thick gas of runic gas source 114, thick gas fan 120 is arranged in this thick gas transfer pipeline, and thick gas pushes from thick gas source 114 to combustion chamber 102 by thick gas fan.
In addition, thick gas transfer pipeline 118 can be provided with differential manometer 122, can know at the pressure differential deltap p on the pressure side and between suction side of thick gas fan 120 by this differential manometer.
The separation equipment 124 of by-pass collar 126 is being had to the arranged downstream of the thick gas access 116 in the exhaust air treatment plant 100 of heating power, the part of thick gas flow as bypass flow stream can by the residual fluid flow point of this separation equipment and thick gas from, and the bypass passageways 130 of by-pass collar 126 can be flowed to by bypass opening 128.
Residual fluid flows through the secondary side that thick gas access 132 enters the pure qi (oxygen) body of recuperation formula-thick gas heat exchanger 134, this pure qi (oxygen) body-thick gas heat exchanger at primary side by the pure qi (oxygen) body percolation of overflowing from combustion chamber.
Pure qi (oxygen) body-thick gas heat exchanger 134 is as afterwards also by elaborating, comprise the heat exchanger tube 136 be made up of a large amount of Tube Sheet of Heat Exchanger 138, the inner space of these Tube Sheet of Heat Exchanger together form can by pure qi (oxygen) body percolation in interior heat exchanger space 140, then being defined by the space outerpace of heat exchanger shell 142 boundary of Tube Sheet of Heat Exchanger 138 can by the heat exchanger space 144 outside of thick gas percolation.
Because in this form of implementation of the exhaust air treatment plant 100 of heating power, the heat exchanger space 144 outside of thick gas percolation pure qi (oxygen) body-thick gas heat exchanger 134, so thick gas is used as fluid media (medium) outside in this form of implementation.
In this form of implementation of the exhaust air treatment plant 100 of heating power, the pure qi (oxygen) body in interior heat exchanger space 140 of percolation pure qi (oxygen) body-thick gas heat exchanger 134, is used as at interior fluid media (medium) in this form of implementation.
Position between the thick gas access 132 and thick gas vent 146 of pure qi (oxygen) body-thick gas heat exchanger 134 is furnished with the equipment that is mixed into 148 of by-pass collar 126, at the residual fluid stream of thick gas after being in separation equipment 124 and being mixed into the section 150 between equipment 148 of the heat exchanger space 144 outside of pure qi (oxygen) body-thick gas heat exchanger 134, the bypass flow stream of thick gas is mixed into equipment can be mixed into again in the residual fluid stream of thick gas by this.
Being mixed into equipment 148 is configured to as follows, namely, bypass flow flow to being mixed in residual fluid stream cross the periphery of residual fluid stream a big chunk, preferred over the whole of residual fluid stream and circumferentially carry out, carry out very good be mixed into that be still in pure qi (oxygen) body-thick gas heat exchanger 134 inside of two stock streams (bypass flow stream and residual fluid stream) to the total thick gas flow of joining together thus.
When reaching the equipment of being mixed into 148, residual fluid stream has the temperature higher than bypass flow stream, because residual fluid stream has passed through to be heated at the heat trnasfer of the pure qi (oxygen) body in interior heat exchanger space 140 from percolation in the section 150 in heat exchanger space 144 outside.
But by being mixed into uniformly by being mixed into equipment 148, achieve by the bypass flow stream of thick gas and the raw total thick gas flow of joining together of residual fluid miscarriage, this total thick gas flow has uniform Temperature Distribution substantially, thus makes the downstream being in the equipment of being mixed into 148 in heat exchanger space 144 outside and extend until the boundary wall of end section 152 of thick gas vent 146 is not all to have the thick gas of very large thermograde to load.
In FIG, pure qi (oxygen) body-slightly gas heat exchanger 134 is pure schematically to be illustrated like this, that is, the heat exchanger space 144 seemed outside is embedded in interior heat exchanger space 140; But this figure is only because being selected as follows, because just by-pass collar 126 can be illustrated more simply like this.In fact embed in this heat exchanger space 144 outside in interior heat exchanger space in interior heat exchanger space 140.
Pure qi (oxygen) body-thick thick gas vent 146 of gas heat exchanger 134 is connected with the thick gas access 154 of burner 104, and thick gas is entered in combustion chamber 102 by this thick gas access.
The exhaust air treatment plant 100 of heating power can be provided with differential manometer 156, combustion chamber 102 side and from pure qi (oxygen) body-thick gas heat exchanger 134 thick gas vent 146 out or to the thick gas access 154 burner 104 opposite side pressure differential deltap p can know by this differential manometer.
In the clean gas access 160 of the clean gas vent 158 first line of a couplet then pure qi (oxygen) body-thick gas heat exchanger 134 of combustion chamber 102, the pure qi (oxygen) body produced in combustion chamber 102 by this clean gas access enter pure qi (oxygen) body-thick gas heat exchanger 134 in interior heat exchanger space 140.
The clean gas vent 162 of pure qi (oxygen) body-thick gas heat exchanger 134 is connected with the clean gas piping 164 guiding to (unshowned) waste stack, and pure qi (oxygen) body is discharged in surrounding enviroment by waste stack.
Clean gas piping 164 can be guided through one or more rearmounted heat exchanger at this, these heat exchangers at primary side by pure qi (oxygen) body percolation.
Other heat exchanger being placed on pure qi (oxygen) body-thick gas heat exchanger 134 like this can be used to heated fluid medium or produce steam by the medium of liquid.
These rearmounted heat exchangers especially can be used for steam generation, deep fat heating by use, hot water produces or warm water produces or heated for circulating air heating or fresh air by use.
The exhaust air treatment plant 100 of heating power can comprise differential manometer 166, can be informed in clean gas piping 164 and to the pressure differential deltap p between the thick gas access 116 in the exhaust air treatment plant 100 of heating power by this differential manometer.
Can branch out bypass line 170 from reaction chamber or by the clean gas passage 168 that clean gas access 160 and the clean gas vent 158 of combustion chamber 102 of pure qi (oxygen) body-thick gas heat exchanger 134 couple together, this bypass line passes in clean gas piping 164 in the downstream of the clean gas vent 162 of pure qi (oxygen) body-thick gas heat exchanger 134.
By this bypass line 170 in hot side can in the future spontaneous combustion chamber 102 pure qi (oxygen) body directly flow to waste stack heat exchanger rearmounted in other words, especially when high especially to the heat demand of one of them of rearmounted heat exchanger when getting around pure qi (oxygen) body-thick gas heat exchanger 134 at least partially.
Can be controlled by the bypass flap 172 be arranged in bypass line 170 or regulate by the bypass stream of the bypass line 170 in hot side.
Show in detail the pure qi (oxygen) body be connected with this combustion chamber-thick gas heat exchanger 134 of combustion chamber 102 and the exhaust air treatment plant 100 of the heating power with by-pass collar 126 by Fig. 1 in fig. 2.
Can be seen by Fig. 2, combustion chamber 102 is configured to, substantially in cylinder shape, extend until deviate from the side 178 of burner 104 along central longitudinal axis 174 from the side 176 in burner side, and by combustion chamber wall 180 boundary in the open tubular column bodily form.
Combustion chamber 104 by the pure qi (oxygen) body be configured in this form of implementation substantially in the open tubular column bodily form-thick gas heat exchanger 134 around, this pure qi (oxygen) body-thick gas heat exchanger on the radial outside that it deviates from combustion chamber 104 by outer cover of heat exchanger body 182 boundary in cylinder shape and on the radially inner side that it faces combustion chamber 102 by heat exchanger inner housing 184 boundary equally substantially in cylinder shape.
Outer cover of heat exchanger body 182 and heat exchanger inner housing 184 together form heat exchanger shell 142, the heat exchanger space 144 outside of heat exchanger shell boundary pure qi (oxygen) body-thick gas heat exchanger 134.
Heat exchanger inner housing 184 is supported on combustion chamber wall 180 by support ring 186.
Form clean gas passage 168 by the intermediate space between combustion chamber wall 180 and heat exchanger inner housing 184, this clean gas passage is by the side 178 deviating from burner of combustion chamber 102 and coupling together with the clean gas access 160 of the adjacent layout in side 176 in burner side of combustion chamber 102 of pure qi (oxygen) body-thick gas heat exchanger 134.
The heat exchanger tube 136 be made up of a large amount of Tube Sheet of Heat Exchanger 138 is arranged in intermediate space between heat exchanger inner housing 184 and outer cover of heat exchanger body 182.
Tube Sheet of Heat Exchanger 138 is all arranged essentially parallel to longitudinal axis 174 and distributes and define one or more, such as two the heat exchanger tube layer 188 in cylinder shape, and Tube Sheet of Heat Exchanger 138 is respectively to be peripherally substantially equidistantly arranged in distributively in these heat exchanger tube layer apart from the identical radial spacing of longitudinal axis 174.
Each Tube Sheet of Heat Exchanger 138 remain on multiple on the direction of longitudinal axis 174 successive follow and on the holding element 190 of preferred equidistant placement each other substantially, these holding elements are such as configured to the retention tab 192 substantially in annular.
Tube Sheet of Heat Exchanger 138 is applied in the through hole in holding element and abuts on holding element 190 with outside it 194 Fluid Sealings, thus makes substantially not have fluid and run through by holding element 190 in the region entering and be in outside Tube Sheet of Heat Exchanger 138.
On two ends of Tube Sheet of Heat Exchanger 138, these Tube Sheet of Heat Exchanger 138 are connected in locking manner with each holding element 190 material, such as, weld.
On the direction of longitudinal axis 174, have less inside radius and larger outer radius interior holding element 190a and have the holding element 190b outside of the outer radius larger than the holding element 190a interior and larger inside radius alternately successive follow.
At interior holding element 190a, there is substantially corresponding to the outer radius of the peripheral wall of heat exchanger inner housing 184 inside radius, thus make substantially not have fluid and pass through between interior edge and heat exchanger inner housing 184 in the radial direction at interior holding element 190a.
Be supported on heat exchanger inner housing 183 at interior holding element 190a piston shoes 196, but not be connected with heat exchanger inner housing 183 firmly, thus to make at interior holding element 190a, in order to equilibrium is based on thermograde or based on the difference of the coefficient of expansion of heating power and different thermal expansions, can to move up in the side of longitudinal axis 174 by phase heat exchanger inner housing 184.
In the outer radius of interior holding element 190a only slightly larger than the outer radius of heat exchanger tube 136, thus make remain with between the side, edge 198 outside of interior holding element 190a and the opposite side of the inner side of outer cover of heat exchanger body 182 outside by gap 200a, fluid can through this outside pass through gap.
The outer radius of holding element 190b outside substantially corresponding to the radius of the inner side of the peripheral wall of outer cover of heat exchanger body 182, thus makes its edge outside of holding element 190b outside to abut on the inner side of outer cover of heat exchanger body 182 and there is no that fluid can pass through between holding element 190b outside and outer cover of heat exchanger body 182.
The inside radius of holding element 190a outside is only slightly less than the inside radius of heat exchanger tube 136, thus make to remain with interior by gap 200b between interior edge 202 and heat exchanger inner housing 184 at holding element 190b outside, fluid can pass through gap through this at interior.
Thus in the division in labyrinth shape defining the heat exchanger space 144 outside of transfer mechanically and pure qi (oxygen) body-thick gas heat exchanger 134 at interior holding element 190a and holding element 190b outside of staggering relative to each other in the radial direction of longitudinal axis 174, thus make the cranky flow path that is configured with in heat exchanger space 144 outside for fluid media (medium).
This heat exchanger space 144 outside of pure qi (oxygen) body-thick gas heat exchanger 134 is by treating that the thick gas of preheating carrys out percolation in this pure qi (oxygen) body-thick gas heat exchanger runs, and this treats that the thick gas of preheating is used as fluid media (medium) outside in this form of implementation.
Because force cranky flow path to thick gas by holding element 190, so thick gas streams Tube Sheet of Heat Exchanger 138, be used as to flow in these Tube Sheet of Heat Exchanger at the pure qi (oxygen) body of interior fluid media (medium), major part is transverse to the longitudinal direction of Tube Sheet of Heat Exchanger 138.
Because the mean flow direction of pure qi (oxygen) body in Tube Sheet of Heat Exchanger 138 is from the side 176 in burner side to side 178 orientation deviating from burner in addition, and the mean flow direction of thick gas then passes through the flow direction 204 anti-parallel orientation of Tube Sheet of Heat Exchanger 138 with pure qi (oxygen) body substantially along the flow path in heat exchanger space 144 outside, so pure qi (oxygen) body-thick gas heat exchanger 134 substantially works according to cross-counterflow principle in this form of implementation.
Thick gas enters pure qi (oxygen) body-thick gas heat exchanger 134 to be undertaken by the separation equipment 124 stretched out by outer cover of heat exchanger body 182 in radial directions of by-pass collar 126, on the end deviating from burner 104 that this separation equipment is arranged in pure qi (oxygen) body-thick gas heat exchanger 134 and be preferably placed in pure qi (oxygen) body-thick gas heat exchanger on upper summit (Kuppe).
Separation equipment 124 comprises and enters hoistway 206, this enters hoistway and is connected with thick gas transfer pipeline 118 in upstream, Ze Cu gas access, downstream 132 to import in the heat exchanger space 144 outside of pure qi (oxygen) body-thick gas heat exchanger 134 and completely or partially can close by heat exchanger valve 208.
Separation equipment 124 comprises bypass hoistway 210 in addition, and this bypass hoistway is connected with thick gas transfer pipeline 118 equally in upstream, then to import in the bypass passageways 130 of by-pass collar 126 and completely or partially can close by bypass flap 212 in downstream.
The bypass flap 212 in bypass hoistway 210 of pure qi (oxygen) body-thick gas heat exchanger 134 and entering the machinery Shangdi of the heat exchanger valve in hoistway 206 and/or control technology Shangdi (that is by the coordination manipulation of the control appliance of the exhaust air treatment plant 100 by heating power of valve) is coupled to each other in this wise, that is, they are opened on the contrary all the time and are closed in other words.
When bypass flap 212 is brought to as in upper/lower positions, in this position, bypass flap release is used for thick gas when entering cross section by bypass hoistway 210 larger, so by the motion of the heat exchanger valve 208 connected with the motion of bypass flap 212, heat exchanger valve 208 is side by side taken to as in upper/lower positions, in this position, heat exchanger valve correspondingly reduces and enters cross section for thick gas by what enter hoistway 206, and vice versa.
Pass through the manipulation of the connection of bypass flap 212 and heat exchanger valve 208 thus, the thick gas flow from thick gas source 114 can be divided into the bypass flow stream through bypass flap 212 and the residual fluid stream through heat exchanger valve 208 with the ratio desired by often kind.
At this, the volume share (measuring by standard cubic meter) that preferred bypass flow stream accounts for the whole thick gas flow carried especially substantially infinitely, at least can control or regulates in the scope of about 20% to 80%.
Bypass passageways 130 is configured to substantially in the open tubular column bodily form and ringwise around the section of pure qi (oxygen) body-thick gas heat exchanger 134 in this form of implementation of the exhaust air treatment plant 100 of heating power.
Bypass passageways 130 faces on the radially inner side of pure qi (oxygen) body-thick gas heat exchanger 134 by outer cover of heat exchanger body 182 and bypass shell body 214 boundary by being cylinder shape on the radial outside that it deviates from pure qi (oxygen) body-thick gas heat exchanger 134 at it.
Bypass passageways 130 along the longitudinal axis 174 from bypass flow stream import bypass passageways 130 bypass hoistway 210, through a part for the length of pure qi (oxygen) body-thick gas heat exchanger 134, preferably through 1/3 of the length of pure qi (oxygen) body-thick gas heat exchanger 134, extend until the equipment that is mixed into 148 of by-pass collar 126, bypass flow stream is mixed in equipment at this residual fluid stream be mixed into again in heat exchanger space 144 outside.
Be mixed into equipment 148 to comprise: bypass passageways end wall 216, this bypass passageways end wall closes the bypass passageways 130 in the open tubular column bodily form in side; And ringwise by gap 218 in outer cover of heat exchanger body 182, the bypass flow stream from the bypass passageways 130 in the open tubular column bodily form can to enter the same heat exchanger space 144 outside in the open tubular column bodily form of pure qi (oxygen) body-thick gas heat exchanger 134 by this by gap.
Be thus form by gap 218 and be mixed into position 220, this whole periphery of flow path being mixed into the whole periphery crossing heat exchanger space 144 outside in position and the residual fluid stream crossing percolation heat exchanger space 144 outside thus extends.
In order to the whole periphery crossing the bypass passageways 130 in the open tubular column bodily form is tried one's best the distribution of homogenising by the bypass flow stream of bypass passageways 130, at separation equipment 124 be mixed between equipment 148 and be provided with one or more restricting element 222 in bypass passageways 130, wherein, bypass flow stream only enters bypass passageways 130 by bypass hoistway 210 on the upside of bypass passageways 130, restricting element is respectively configured to flow obstacle, it is preferably equally spaced substantially with the periphery along restricting element 222, multiple through holes 224 of restricting element 222 are flowed through for bypass flow.
At this, the multiple through holes 224 in this flow obstacle overall preferably accounts for by face maximum that bypass flap 212 discharges in bypass hoistway 210 and enters 150% or less of cross section.
Especially can arrange, in this flow obstacle multiple through hole 224 overall by face account for that bypass flap 212 discharges in bypass hoistway 210 maximum by cross section 125% or less, such as about 100%.
In addition, the multiple through holes 224 in this flow obstacle overall by face preferably account for that bypass flap 212 discharges in bypass hoistway 210 maximum enter cross section about 50%, especially at least about 75%.
Restricting element 222 can especially be configured to be with the flow regulator pieces of through hole 224, this flow regulator pieces can integrally with in holding element 190b outside each one with the formal construction of retention tab 192.
From discharge the carrying out in thick air accumulation space 226 on the end of burner side, during this thick air accumulation space is in and is connected with the fluid of the thick gas access 132 of burner 104 at pure qi (oxygen) body-thick gas heat exchanger 134 of total fluid stream of being joined together once again by bypass flow stream and residual fluid stream of the thick gas in the heat exchanger space 144 outside of pure qi (oxygen) body-thick gas heat exchanger 134.
Pure qi (oxygen) body carrying out in the end deviating from burner 104 of pure qi (oxygen) body-thick gas heat exchanger 134 being discharged to pure qi (oxygen) body accumulation chamber 228 of interior heat exchanger space 140 from pure qi (oxygen) body-thick gas heat exchanger 134, the end being in clean gas downstream of Tube Sheet of Heat Exchanger 138 passes in this pure qi (oxygen) body accumulation chamber.
Pure qi (oxygen) body accumulation chamber 228 starts clean gas piping 164, and pure qi (oxygen) body is flowed to heat exchanger rearmounted if desired and the most backward waste stack by this clean gas piping.
Additional pure qi (oxygen) body can be directed through the bypass line 170 in hot side of the primary side of pure qi (oxygen) body-thick gas heat exchanger 134 by it, formed by so-called condenser 230 in this form of implementation, this condenser such as has the shape of hollow cylinder and is in during the end deviating from burner 104 of side and combustion chamber 102 and opposite side be connected with the fluid of pure qi (oxygen) body accumulation chamber 228.
This external condenser 230, such as on the end of its accumulation chamber side, be provided with bypass flap 172, this bypass flap can make the share adjusted from the clean gas flow of combustion chamber 102 become possibility, the share of this clean gas flow directly enters pure qi (oxygen) body accumulation chamber 228 from combustion chamber 102, and need not first through pure qi (oxygen) body-thick gas heat exchanger 134.
In order to improve from pure qi (oxygen) body to the effect of the heat trnasfer of thick gas in pure qi (oxygen) body-thick gas heat exchanger 134, Tube Sheet of Heat Exchanger 138 can be provided with the surface texture of turbulization on the inner side of its wall and on outside.
Especially can arrange at this, Tube Sheet of Heat Exchanger 138 is configured to cyclone pipe (Drallrohre).
This cyclone pipe is such as in DIN28178 (in the text in May, 2009) explanation.
But Tube Sheet of Heat Exchanger 138 also can be configured to plain tube.
To illustrate in fig. 1 and 2 and the form of implementation of the exhaust air treatment plant 100 of the heating power emphasized operates as follows:
The bypass flow stream that the separation equipment 124 and being divided into there arriving by-pass collar 126 from the thick gas of thick gas source 114 enters in bypass passageways 130 and the residual fluid stream directly entered in the heat exchanger space 144 outside of the gas heat exchanger 134 of pure qi (oxygen) body-slightly.
The volume share that bypass flow stream and residual fluid stream account for total thick gas flow depends on each location through adjustment of bypass flap 212 and heat exchanger valve 208 at this.
The share of bypass flow stream is larger, and the efficiency of pure qi (oxygen) body-thick gas heat exchanger 134 is lower, and discharge temperature T ahigher, pure qi (oxygen) body is discharged from pure qi (oxygen) body-thick gas heat exchanger 134 with this discharge temperature.
The discharge temperature of pure qi (oxygen) body can adjust by the difference of adjustable pure qi (oxygen) body-thick gas heat exchanger 134 according to the pure qi (oxygen) temperature desired by rearmounted heat exchanger thus.
When being opened in the bypass line 170 of bypass flap 172 in hot side, thus when the pure qi (oxygen) body from combustion chamber 102 can directly be entered in clean gas piping 164, the further raising of the discharge temperature of pure qi (oxygen) body can be realized.But by utilizing the reaction time shortening the incendivity component oxidation being provided for thick gas at the bypass line 170 of hot side, because the pure qi (oxygen) body entering bypass line 170 does not pass clean gas passage 168.
Bypass flow stream flows to again residual fluid stream very equably by being mixed into equipment 148, because bypass passageways 130 is implemented as hollow cylinder, this hollow cylinder is arranged with one heart around pure qi (oxygen) body-thick gas heat exchanger 134, and because is mixed into position 220 extending on the whole periphery being mixed into position 201 place in heat exchanger space 144 outside.
In addition, the restricting element 222 be arranged in bypass passageways 130 works as blocking level, these blocking level homogenising bypass flow stream distributions on the periphery of bypass passageways 130.
Total fluid stream of being joined together once again by bypass flow stream and residual fluid stream of thick gas along cranky flow path through by gap 200a, 200b in cross-counterflow along Tube Sheet of Heat Exchanger 138 and the thick air accumulation space 226 on the end of burner side flowing to pure qi (oxygen) body-thick gas heat exchanger 134 against the flow direction 204 of pure qi (oxygen) body.
Therefrom, be heated to the thick gas of the preheat temperature of such as about 620 DEG C from its initial temperature in pure qi (oxygen) body-thick gas heat exchanger 134, if desired with the fuel mix from fuel conduit 106 reached in burner 104 by thick gas access 154, and to reach therefrom in combustion chamber 102.There, the oxidable component of thick gas and fuel are oxidized in exothermic reaction, thereby produce the pure qi (oxygen) body with being such as about 750 DEG C of temperature, this pure qi (oxygen) body is back to the end in burner side of pure qi (oxygen) body-thick gas heat exchanger 134 by the flowing of clean gas passage 168 reverse flow direction 204 from the side 178 deviating from burner of combustion chamber 102, pure qi (oxygen) body reaches the end in burner side of the Tube Sheet of Heat Exchanger 138 of pure qi (oxygen) body-thick gas heat exchanger 134 and the end deviating from burner 104 flowing to the gas heat exchanger 134 of pure qi (oxygen) body-slightly in interior heat exchanger space 140 along flow direction 204 formed in the inner space by Tube Sheet of Heat Exchanger 138 there.
Because in all adjusting positions of pure qi (oxygen) body-thick gas heat exchanger 134, all pure qi (oxygen) bodies are the clean gas passage 168 of percolation all, so in all these adjusting positions, waste gas from combustion chamber 102 until the whole time of staying entered in the scope in pure qi (oxygen) body-thick gas heat exchanger 134 retentively obtain, and can not cooling exhaust in the case.Thus achieve the complete oxidation of the oxidable component of thick gas.
By being cooled to the discharge temperature T of the adjusting position depending on pure qi (oxygen) body-thick gas heat exchanger 134 to the heat trnasfer on thick gas apure qi (oxygen) body, reach pure qi (oxygen) body accumulation chamber 228 from pure qi (oxygen) body-thick gas heat exchanger 134 in interior heat exchanger space 140, and arrive heat exchanger rearmounted if desired from there through clean gas piping 164, heat trnasfer is given one or more other fluid media (medium)s by pure qi (oxygen) body there under cooling further.
Pure qi (oxygen) body is discharged to surrounding environment followed by waste stack.
The exhaust air treatment plant 100 of heating power is structurally designed with the clean gas discharge temperature T determined according to the operating point determined a.
Because the exhaust air treatment plant of heating power 100 relates to the integrated steel-structure of rigidity substantially, thus this pre-designed (when thick gas by thick gas source 114 given in advance enter temperature) essentially define the height of discharge temperature.
Because can be improved when needed by utilizing by-pass collar 126 by the pure qi (oxygen) body-thick gas heat exchanger 134 that can regulate in the foregoing manner, but the discharge temperature of pure qi (oxygen) body can not be reduced, so when using by-pass collar 126 meaningfully, the operating point of the exhaust air treatment plant 100 of heating power is not that design is on the nominal discharge temperature of pure qi (oxygen) body, but design is in lower slightly temperature, decision design in the temperature of low at least 10 DEG C, in the temperature of especially low about 20 DEG C.
At the run duration of the exhaust air treatment plant 100 of heating power, the clean gas discharge temperature T of actual needs then can be adjusted by the adjustment by bypass flap 212 and heat exchanger valve 208 of pure qi (oxygen) body-thick gas heat exchanger 134 a.
In the stage that the less heat by rearmounted heat exchanger declines, so such as can be adjusted in production suspends on the as far as possible low clean gas discharge temperature of operating point, to save energy.
The second form of implementation shown in Fig. 3 to Figure 14 of the exhaust air treatment plant 100 of heating power is consistent with the first form of implementation illustrated in fig. 1 and 2 in structure and its working method of its principle.
Especially the second form of implementation of the exhaust air treatment plant 100 of heating power is also applicable to by the principle block diagram of Fig. 1.
The difference of the second form of implementation the first form of implementation relative is, when the second form of implementation, being in thick gas access 132 and the section 150 be mixed between equipment 148 and will being longer than end section 152 between the equipment of being mixed into 148 that is in heat exchanger space 144 outside and thick gas vent 146 of heat exchanger space 144 outside, on thick gas access, residual fluid flows in the heat exchanger space 144 outside of pure qi (oxygen) body-thick gas heat exchanger 134, on thick gas vent, total fluid stream of joining together once again of thick gas is discharged by heat exchanger space 144 outside.
In the second form of implementation, bypass flow stream has had at residual fluid stream and has just then been mixed into than during temperature higher in the first form of implementation.
Thus when the second form of implementation, the possible reduction of the efficiency of pure qi (oxygen) body-thick gas heat exchanger 134 (and thus for pure qi (oxygen) body exhaust temperature T athe control band that can get at) can be greater than when the first form of implementation.
In addition, be mixed into equipment 148 be mixed into position 220 on the direction of longitudinal axis 174 extend in the second form of implementation be also greater than when the first form of implementation.
In particular, the average headway between two holding elements 190 that successive is followed on the direction of longitudinal axis 174 being greater than pure qi (oxygen) body-thick gas heat exchanger 134 by the extension of gap 218 on the direction of longitudinal axis 174 being mixed into position 220 is formed when the second form of implementation.
Bypass passageways end wall 216 is not substantially construct in circular cone hull shape as when the first form of implementation when the second form of implementation, but the ground structure in annular substantially.
In order to the stability mechanically of the adjacent boundary region of the stability mechanically and bypass shell body 214 that improve bypass passageways end wall 216, reinforcing element 232 is arranged with in the situation of the second form of implementation, such as form is about leg-of-mutton gusset, and along the periphery of bypass passageways end wall 216, preferably equidistantly distribution and material be not only connected with bypass passageways end wall 216 but also with bypass shell body 214 these gussets in locking manner substantially.
In addition, when the second form of implementation, outer cover of heat exchanger body 182 face bypass passageways end wall 216, to be provided with at the edge 234 that upstream side boundary is mixed into position 220 ringwise around crimp 236 so that strengthened edge 234.
On the flow direction of thick gas, reach as follows by the very large expansion in heat exchanger space 144 outside by being mixed into position 220, that is, mixing of bypass flow stream and residual fluid stream mainly carries out being in the blending space 238 outside radial heat exchanger tube 136.
Thus avoid cold bypass flow stream and be directly carried in the Tube Sheet of Heat Exchanger 138 be mixed in region, position 220, this can cause very high heating power stress, because the downstream in the region being mixed into position 220 that is in of Tube Sheet of Heat Exchanger 138 contacts with the thick gas of higher temperature with the region of upstream.
But by blending space 238 to the displacement in the region be in outside heat exchanger tube 136, first the mixture be made up of bypass flow stream and residual fluid stream by being mixed into generation arrives Tube Sheet of Heat Exchanger 138, and this mixture has the temperature higher than bypass flow stream cold separately.
In addition contribute to mixed process to be displaced to and in the region outside heat exchanger tube 136 be, be mixed into equipment 148 be mixed in the region at position 220 be furnished with pure qi (oxygen) body-thick gas heat exchanger 134 be not arranged in outer holding element 190b at interior holding element 190a, thus force residual fluid stream to flow through the side of the radial direction outer of holding element 190a.
Fig. 4 to Figure 14 shows the details of the second form of implementation of the exhaust air treatment plant 10 of heating power, these details construct in the same manner when the first form of implementation or can construct in the same manner, but can not identify so significantly by the only profile (Fig. 2) of the first form of implementation.
Therefore Fig. 4 shows the vertical section of radial direction in interior region being passed in interior holding element 190a, should at interior holding element with piston shoes 196 attached thereto, these piston shoes can at the square upward sliding of longitudinal axis 174 on the outside of heat exchanger inner housing 184.
Fig. 5 shows the vertical section of the end in burner side through two Tube Sheet of Heat Exchanger 138, and these two Tube Sheet of Heat Exchanger are connected in locking manner with holding element 190 material of pure qi (oxygen) body-thick gas heat exchanger 134, especially weld.
Fig. 6 shows the top view on the end regions deviating from burner 104 of the exhaust air treatment plant 100 from top to heating power, especially can be known see with bypass hoistway 210 and the adjacent separation equipment 124 entering hoistway 206 by this top view.
Enter hoistway 206 by thick gas can the cross section of percolation be preferably greater than bypass hoistway 210 can the cross section of percolation by thick gas.
Fig. 7 shows the vertical cross-section of the exhaust air treatment plant 100 being mixed into the heating power in the region at position 220 being passed in the equipment of being mixed into 148.
By Fig. 7 and illustrate that the Fig. 8 of the cross section extending only through heat exchanger tube 136 can see, when the second form of implementation, heat exchanger tube 136 comprises three heat exchanger tube layer 188, wherein, the Tube Sheet of Heat Exchanger 138 of different heat exchanger tube layer 188 has the radial spacing different apart from longitudinal axis 174.
Fig. 9 has illustrated the vertical cross-section of the exhaust air treatment plant 100 through heating power in such as lower area, and in this region, the bypass passageways 130 of by-pass collar 126 is around the section 150 in the heat exchanger space 144 outside of pure qi (oxygen) body-thick gas heat exchanger 134.
Can be seen by Fig. 9 and the Figure 10 that show separately the restricting element ringwise 222 be arranged in bypass passageways 130, restricting element 222 is provided with a large amount of ringwise through hole 224, and these through holes are followed along the preferred equidistantly successive of periphery of restricting element 222.
Can select the maximum of the gross area of the through hole 224 in restricting element 222 and by-pass collar 126 can the ratio entering cross-sectional area of percolation as when the first form of implementation.
Figure 11 to Figure 14 finally show the details of the embodiment of the separation equipment 124 for by-pass collar 126, with the driving arrangement 240 of the adjustment campaign connected for driving bypass flap 212 and heat exchanger valve 208.
As preferably appreciable by Figure 11 and Figure 12, bypass flap 212 and heat exchanger valve 208 with can around each turning cylinder 242 in other words 244 between open position and closed position the mode of pivotable be bearing on bypass hoistway 210 and enter in other words on hoistway 206.
Preferably can be seen by Figure 12, bypass flap 212 is in its open position just, in this open position, bypass flap releases for bypass flow stream that to flow in by-pass collar 126 maximum enters cross section, and heat exchanger valve 208 is in its closed position simultaneously, in this closed position, heat exchanger valve 208 prevents thick gas to enter in the section 150 in the heat exchanger space 144 outside of pure qi (oxygen) body-thick gas heat exchanger 134.
In this position of bypass flap 212 and heat exchanger valve 208, therefore bypass flow stream account for 100% of the volume share of the total thick gas flow entered in the exhaust air treatment plant 100 of heating power.
Turning cylinder 242 and 244 is coupled to each other in this wise via the parallelogram guide rod 246 in fig. 14, thus making when the turning cylinder 242 of bypass flap is moved pivotally by driving, bypass flap 212 and heat exchanger valve 208 reciprocally implement pivoting action large equally.
This pivoting action triggers by electric drive motor 248, the movement of the free end that the orthoscopic that this electric drive motor creates bar 249 by rotating spindle device 250 guides, this bar is hinged on other bar 252 by hinge 251, and other bar is connected with turning cylinder 242 in anti-relative rotation itself.
If the control signal based on the control appliance of the exhaust air treatment plant 100 of heating power in the open position that bypass flap 212 is shown is in fig. 12 pivoted in its closed position, so side by side heat exchanger valve 208 is moved to open position from its closed position by the connection of two valve 212 and 208 via parallelogram guide rod 246.
By the adjustment being in the centre position between respective open position and closed position of valve 212 and 208, entering thick gas flow in the exhaust air treatment plant 100 of heating power can with in order to regulate clean gas discharge temperature T athe ratio of each needs is divided into bypass flow stream and residual fluid stream.
The third form of implementation of the exhaust air treatment plant 100 of the heating power in fig .15 shown in schematic block diagrams and the difference of the first form of implementation shown in Fig. 1 and Fig. 2 are, pure qi (oxygen) body-thick gas heat exchanger 134 when interior heat exchanger space 140 in the third form of implementation be not by pure qi (oxygen) body, but carrying out percolation by thick gas, percolation is then carried out by pure qi (oxygen) body when this form of implementation in the heat exchanger space 144 outside of pure qi (oxygen) body-thick gas heat exchanger 134.
Thus when this form of implementation, pure qi (oxygen) body is used as at interior fluid media (medium) as fluid media (medium) outside and thick gas.
Therefore when this form of implementation, by-pass collar 126 is not be arranged in thick gas side, but be arranged in pure qi (oxygen) side, by this by-pass collar, a part for fluid stream outside is guided the section 150 in the heat exchanger space 144 outside through pure qi (oxygen) body-thick gas heat exchanger 134, to reduce the efficiency of pure qi (oxygen) body-thick gas heat exchanger 134 when needed.
Thus, by-pass collar 126 comprises the separation equipment 124 on the clean gas access that is arranged in pure qi (oxygen) body-thick gas heat exchanger 134 when this form of implementation, from the clean gas flow of combustion chamber 102 a part by this separation equipment as bypass flow stream can with the residual fluid flow point of pure qi (oxygen) body from and the equipment of being mixed into 148 can be flowed to by bypass passageways 130, bypass flow stream can be mixed into again in the residual fluid stream of pure qi (oxygen) body by the equipment of being mixed into, at this residual fluid stream after the section 150 in the heat exchanger space 144 outside of pure qi (oxygen) body-thick gas heat exchanger 134.
Because when this form of implementation, the efficiency of pure qi (oxygen) body-thick gas heat exchanger 134 can be lowered in affined mode, so also can regulate clean gas discharge temperature T by the adjustment of pure qi (oxygen) body-thick gas heat exchanger 134 when this form of implementation by the adjustable share of whole clean gas flow being directed through the section 150 in the heat exchanger space 144 outside of pure qi (oxygen) body-thick gas heat exchanger 134 a.
In addition, the third form of implementation of the exhaust air treatment plant 100 of heating power shown in Figure 15 structure and function aspects all with the first form of implementation shown in Fig. 1 and Fig. 2 and also consistent with the second form of implementation shown in Fig. 3 to Figure 14, thus can with reference to their aforementioned explanation.

Claims (14)

1. the exhaust air treatment plant of heating power, comprise combustion chamber (102) and for the heat trnasfer of pure qi (oxygen) body that produces in the future comfortable described combustion chamber (102) to the heat exchanger (134) to be delivered to the thick gas of described combustion chamber (102)
Wherein, described heat exchanger (134) comprise by fluid media (medium) energy percolation in interior heat exchanger space (140) and the heat exchanger space (144) outside by fluid media (medium) energy percolation outside,
Wherein, described heat exchanger (134) comprises the heat exchanger tube (136) be made up of a large amount of Tube Sheet of Heat Exchanger (138), the inner space of these Tube Sheet of Heat Exchanger together form described in interior heat exchanger space (140), the heat exchanger space (144) outside described in the space outerpace of heat exchanger shell (142) boundary then defines of described Tube Sheet of Heat Exchanger (138)
Wherein, the exhaust air treatment plant (100) of described heating power comprises by-pass collar (126), described by-pass collar is with separation equipment (124), can by described separation equipment by a part for fluid stream outside with residual fluid flow point outside from being used as bypass flow stream, and described by-pass collar is with being mixed into equipment (148), described bypass flow stream can be mixed into again in described residual fluid stream by the described equipment that is mixed into after the section (150) in heat exchanger space (144) outside described in described residual fluid stream has passed through, wherein, described by-pass collar (126) comprises bypass passageways (130), described bypass passageways is ringwise around the flow path of described residual fluid stream.
2. by the exhaust air treatment plant of heating power according to claim 1, it is characterized in that, the described equipment (148) that is mixed into comprises at least one and is mixed into position (220), described in be mixed into position and extend at least half of the periphery of described residual fluid stream.
3., by the exhaust air treatment plant of heating power according to claim 2, it is characterized in that, described in be mixed into position (220) and extend around the flow path of described residual fluid stream ringwise.
4. by the exhaust air treatment plant of the heating power described in one of claims 1 to 3, it is characterized in that, the described equipment (148) that is mixed into comprises and is multiplely mixed into position (220), wherein, be mixed into position (220) described in multiple to be distributed in and to be mixed on region, described in be mixed into region and extend at least half of the periphery of described residual fluid stream.
5., by the exhaust air treatment plant of the heating power described in one of claims 1 to 3, it is characterized in that, described by-pass collar (126) is included at least one restricting element (222) in the flow path of described bypass flow stream.
6., by the exhaust air treatment plant of heating power according to claim 5, it is characterized in that, at least one restricting element (222) is configured to the flow obstacle with multiple through hole (224).
7. by the exhaust air treatment plant of heating power according to claim 6, it is characterized in that, what the overall area by face of the described multiple through hole (224) in described flow obstacle accounted for described by-pass collar (126) enters 150% or less of the area of cross section.
8. by the exhaust air treatment plant of the heating power described in one of claims 1 to 3, it is characterized in that, described in be mixed into equipment (148) be arranged in described in fluid media (medium) outside flow out described in the outlet (146 in heat exchanger space (144) outside; 162) upstream.
9. by the exhaust air treatment plant of the heating power described in one of claims 1 to 3, it is characterized in that, described separation equipment (124) comprises and flows to bypass flap (212) in described by-pass collar (126) for controlling described bypass flow and flow to heat exchanger valve (208) in described heat exchanger (134) for controlling described residual fluid.
10. by the exhaust air treatment plant of heating power according to claim 9, it is characterized in that, described bypass flap (212) and described heat exchanger valve (208) mechanical Shangdi and/or control technology Shangdi are coupled to each other.
11., by the exhaust air treatment plant of the heating power one of claims 1 to 3 described, is characterized in that, described separation equipment (124) be arranged in described residual fluid flow to described in entrance (132 in heat exchanger space (144) outside; 160) upstream.
12. by the exhaust air treatment plant of the heating power one of claims 1 to 3 described, and it is characterized in that, described heat exchanger space (144) outside can by the thick gas percolation to be delivered to described combustion chamber (102).
13. by the exhaust air treatment plant of the heating power one of claims 1 to 3 described, and it is characterized in that, described heat exchanger space (144) outside can by the pure qi (oxygen) body percolation produced in described combustion chamber (102).
14., for containing the method for the thick gas flow that can be oxidized component by the exhaust air treatment plant purification of heating power, comprise following method steps:
-described thick gas flow is flowed to combustion chamber (102);
-produce clean gas flow by described at least part of oxidation that can be oxidized component of thick gas flow described in described combustion chamber;
-give described thick gas flow by heat exchanger (134) by the heat trnasfer from described clean gas flow, wherein, described heat exchanger (134) comprise by fluid media (medium) percolation in interior heat exchanger space (140) and the heat exchanger space (144) outside by fluid media (medium) percolation outside, and, wherein said heat exchanger (134) comprises the heat exchanger tube (136) be made up of a large amount of Tube Sheet of Heat Exchanger (138), the inner space of these Tube Sheet of Heat Exchanger together form described in interior heat exchanger space (140), the heat exchanger space (144) outside described in the space outerpace of heat exchanger shell (142) boundary then defines of described Tube Sheet of Heat Exchanger (138),
-by by-pass collar (126) separation equipment (124) using a part for fluid stream outside with residual fluid flow point outside from as bypass flow stream;
-at described residual fluid stream after the section (150) in heat exchanger space (144) outside, described bypass flow stream is mixed in described residual fluid stream by the equipment that is mixed into (148) by described by-pass collar (126)
Wherein, described by-pass collar (126) comprises bypass passageways (130), and described bypass passageways is ringwise around the flow path of described residual fluid stream.
CN201180014368.8A 2010-03-15 2011-03-09 The exhaust air treatment plant of heating power Expired - Fee Related CN102803853B (en)

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DE102010012005.7 2010-03-15
DE102010012005A DE102010012005A1 (en) 2010-03-15 2010-03-15 Thermal exhaust air purification system
PCT/EP2011/053551 WO2011113732A1 (en) 2010-03-15 2011-03-09 Thermal exhaust air treatment plant

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WO2011113732A1 (en) 2011-09-22
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RU2012143690A (en) 2014-04-20
HK1173206A1 (en) 2013-05-10
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EP2547960B1 (en) 2014-06-11
DE102010012005A1 (en) 2011-09-15

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