CN206386955U - A kind of flue gas reheat stove - Google Patents
A kind of flue gas reheat stove Download PDFInfo
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- CN206386955U CN206386955U CN201621196754.XU CN201621196754U CN206386955U CN 206386955 U CN206386955 U CN 206386955U CN 201621196754 U CN201621196754 U CN 201621196754U CN 206386955 U CN206386955 U CN 206386955U
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- flue gas
- combustion chamber
- stove
- reheat
- burner
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Abstract
The utility model is related to environmental protective chemical industry field, more particularly to a kind of flue gas reheat stove, the body of heater of reheater includes combustion chamber, the import of the combustion chamber flowed into for flue gas, the outlet flowed out for flue gas from combustion chamber, to the burner of the combustion chamber jet flames of body of heater, flue gas is mutually perpendicular to from the direction of import flow into combustor with flue gas from the direction of outlet outflow combustion chamber, and direction of the direction of burner jet flames with flue gas from Combustor Flows to outlet is identical, equipment is avoided to be damaged by overtemperature, extension device service life, and, flue gas, which is flowed through, just can once reach the predetermined temperature for needing to heat behind combustion chamber, save the trouble of reheating, reduce equipment size, reduce operating cost.
Description
Technical field
The utility model is related to environmental protective chemical industry field, more particularly to a kind of flue gas reheat stove.
Background technology
Gradually strict with environmental requirement, many high-temperature oxidation devices need to take tightened up measure to reduce dirt
Thing content is contaminated, the measures such as denitration are carried out including SCR SCRs equipment is installed, but when using this equipment,
Need that the flue gas at import is raised into certain temperature using reheat machine.
In the prior art, it is often using gas-gas heat exchanger and steam heater combination, flue gas heating is high to required
Temperature.Because flue gas is after catalysis reduction, when itself is in meet the requirement of environmental protection, itself also has higher temperature, by this
Gas of the part with heat is incorporated into gas-gas heat exchanger equipment, so that the flue gas for needing to heat is heated up, but by
In gas discharge shortage of heat with meet flue gas heating requirement so that by heating flue gas need by steam heater
Carry out reheating.And the limitation of vapour heater is very big, not only needing steam can use, according to SCR SCRs
The temperature that equipment needs, the specification to steam is also necessarily required, further limit the application of steam heater.Also, the party
Case needs to use two equipment, and not only equipment size and floor space are larger, and investment is big, also add the maintenance of equipment.Separately
On the one hand, if containing a large amount of dust-ladens or with corrosivity in flue gas, easily caused damage to equipment, the use longevity of equipment is influenceed
Life.
Therefore, how reducing equipment size, improving service life of equipment is the problem of needing to solve at present.
Utility model content
The purpose of this utility model is to provide a kind of flue gas reheat stove, while heating flue gas is ensured, reduction equipment
Size, raising service life of equipment.
In order to solve the above-mentioned technical problem, the utility model provides a kind of flue gas reheat stove, the body of heater of the reheater
The import of the combustion chamber flowed into comprising combustion chamber, for flue gas, the outlet flowed out for flue gas from the combustion chamber, to institute
The combustion chamber for stating body of heater provides the burner of heat, the flue gas from the import flow into the direction of the combustion chamber with it is described
Flue gas is mutually perpendicular to from the direction of the outlet outflow combustion chamber, and direction and the flue gas of the burner jet flames
Direction from the Combustor Flows to the outlet is identical.
In terms of existing technologies, the body of heater of reheater of the present utility model for flue gas comprising combustion chamber, flow into
The import of combustion chamber, the outlet flowed out for flue gas from combustion chamber, to body of heater combustion chamber provide heat burner, be worth
One is mentioned that, flue gas is mutually perpendicular to from the direction of import flow into combustor with flue gas from the direction of outlet outflow combustion chamber, and combustion
Direction of the direction for the flame that device is ejected with flue gas from Combustor Flows to outlet is burnt identical, like this, even if needing
Increase flame, also ensure that flame will not touch the inwall of combustion chamber, it is to avoid equipment is damaged by overtemperature, and extension device makes
With the life-span, also, flue gas is flowed through that the predetermined temperature for needing to heat just can be once reached behind combustion chamber, saves the fiber crops of reheating
It is tired, reduce equipment size, reduce production cost.
Further, the heat-insulation layer for separating flame is equipped with the inwall of the combustion chamber.Heat-insulation layer is using tolerance
The material that 1400 degrees Celsius of high temperature, fundamentally avoids the overtemperature of equipment from damaging.
Further, the flue gas mixing arrangement for flue gas after mixed combustion is additionally provided with the combustion chamber.Flue gas is logical
During outlet, flue gas mixing arrangement changes its flow direction, increases turbulent flow, promotes mixing, makes combustor exit flue gas
More uniform temperature.
Further, the flue gas mixing arrangement is deflection plate.
Further, the observation device for observing picture in the combustion chamber is additionally provided with the combustion chamber.
Further, the burner, which is included, is used to provide the fuel supply system of fuel, the point for lighting fuel
Firelock, after the burning torch igniting, the fuel supply system is opened, and the fuel is ignited.Fuel is discharged by burning
Enough heats, it is ensured that flue gas can be heated to predetermined temperature.
Further, the burner, which is also included, is used to detect the detector for whether having flame in the combustion chamber, institute
State detector to be connected with the control system, after the burning torch igniting, the control system detects institute in the detector
State when having flame in combustion chamber, trigger the fuel supply system and open.Ensuring fuel is just sprayed after burning torch successful ignition
Go out, it is to avoid fuel sky is put.
Further, the burner, which is also included, is used to increase the auxiliary combustion equipment of oxygen content in the combustion chamber, use
The oxygen detection device of oxygen content in detection combustor exit flue gas, the auxiliary combustion equipment and oxygen detection device difference
It is connected with the control system；The control system detects the oxygen content less than preset value in the oxygen detection device
When, trigger the auxiliary combustion equipment and open.So that when the oxygen content of flue gas causes fuel clean-burning less than certain value
Wait, supplement the oxygen content in combustion air, increase flue gas, it is ensured that combustion efficiency.
Brief description of the drawings
Fig. 1 is the schematic diagram of the flue gas reheat stove in the utility model first embodiment；
Fig. 2 is according to module diagram in the utility model first embodiment；
Fig. 3 is the schematic diagram of the flue gas reheat stove in the utility model second embodiment；
Fig. 4 is the schematic diagram of the flue gas reheat stove in the embodiment of the utility model the 3rd.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Each embodiment of type is explained in detail.So as to it will be understood by those skilled in the art that.It is each in the utility model
In embodiment, in order that reader better understood when the application and propose many ins and outs.But, even if without this
A little ins and outs and many variations based on following embodiment and modification, can also realize the application skill claimed
Art scheme.
First embodiment of the present utility model is related to a kind of flue gas reheat stove, specifically as shown in figure 1, the body of heater of reheater
1 comprising combustion chamber 2, the import 3 of the combustion chamber 2 flowed into for flue gas, the outlet 4 flowed out for flue gas from combustion chamber 2, to body of heater
The burner of 1 jet flames 5 of combustion chamber 2, it is worth mentioning at this point that, flue gas in present embodiment is from the flows into combustion of import 3
The direction of room 2 and flue gas are orthogonal, and the direction of burner jet flames 5 from the directions that combustion chambers 2 are flowed out in outlet 4
It is identical from the direction that combustion chamber 2 flow to outlet 4 with flue gas, like this, even if needing to increase flame 5, it also ensure that fire
Flame 5 will not touch the inwall of combustion chamber, it is to avoid equipment is damaged by overtemperature, extension device service life.
Specifically, the observation device for observing picture in combustion chamber 2 is additionally provided with combustion chamber 2, by observing device
Record the picture of combustion chamber 2, like this, staff can Real Time Observation to the situation in combustion chamber 2.
It is used to provide the fuel supply system of fuel, for lighting fuel in addition, burner mentioned above is included
Burning torch 6 is, it is necessary to explain, burning torch 6 should first light a fire, it is determined that after lighting a fire successfully, fuel supply system is just opened, it is to avoid
Fuel sky is put.And in order to ensure fuel is just sprayed after the successful ignition of burning torch 6, burner, which is also included, to be used to detect burning
Whether the detector of flame 5 is had in room 2, detector is connected with control system, after burning torch 6 is lighted a fire, control system is in detector
Detect when having flame 5 in combustion chamber 2, triggering fuel supply system is opened.
In the present embodiment, fuel supply system includes the pipeline for conveying fuel, provided with switch on pipeline
After valve and the regulating valve for controlling fuel flow rate, switch valve and regulating valve are opened, fuel goes out to spray from inlet.In this implementation
In mode, fuel can be gaseous fuel, such as natural gas or liquid fuel, such as diesel oil, and these fire
Material has certain pressure in itself, so alloing produced flame 5 to keep certain when fuel sprays and lighted from liquid waste spray gun
Shape.In the present embodiment, with reference to shown in Fig. 1, although fuel be horizontally oriented from the direction that inlet sprays, but by
There is certain pressure in itself in fuel, so the length of the flame 5 produced can still keep horizontal direction.In addition, being worth one
It is mentioned that, because the flow of the fuel ejected can be adjusted by regulating valve, so the length for producing flame 5 is variable
, and in present embodiment, combustion chamber 2 is horizontal design, even if the length of flame 5 changes, still ensure that combustion chamber 2
Inwall is not contacted directly with flame 5, it is to avoid equipment is directly damaged by overtemperature, the service life of extension device.
It is in actual use, higher due to not knowing the oxygen content in the composition in heat smoke to be added, some flue gases,
And the oxygen content in some flue gases is then than relatively low, if the oxygen content of flue gas is less than certain value, fuel combustion is insufficient.In order to
Solve the above problems, in the present embodiment, burner, which is also included, to be used to increase the combustion-supporting dress of oxygen content in combustion chamber 2
Put, the oxygen detection device for detecting oxygen content in combustor exit flue gas, auxiliary combustion equipment and oxygen detection device respectively with
Control system is connected, and control system is when oxygen detection device detects oxygen content less than preset value, and triggering auxiliary combustion equipment is opened,
Lift the oxygen content in flue gas.
In summary, because the body of heater 1 of reheater of the present utility model includes combustion chamber 2, the burning flowed into for flue gas
The import 3 of room 2, the outlet 4 flowed out for flue gas from combustion chamber 2, to body of heater 1 the jet flames 5 of combustion chamber 2 burner,
It is noted that flue gas mutually hangs down from the direction of the flow into combustor 2 of import 3 and flue gas from the direction that combustion chamber 2 is flowed out in outlet 4
Directly, and the direction of flame 5 ejected of burner is identical from the direction that combustion chamber 2 flow to outlet 4 with flue gas, it is such
Words, even if needing to increase flame 5, also ensure that flame 5 will not touch the inwall for burning room, it is to avoid equipment is damaged by overtemperature
Evil, extension device service life, also, flue gas, which are flowed through, just can once reach the predetermined temperature for needing to heat behind combustion chamber 2, save
The trouble of reheating is gone, compared to traditional heating mode, the equipment size of the combustion gas reheater of present embodiment is substantially reduced,
Reduce production cost.
Second embodiment of the present utility model is related to a kind of flue gas reheat stove, and second embodiment is to the first embodiment party
A kind of improvement of formula, is mainly theed improvement is that：In the present embodiment, with reference to shown in Fig. 3, laid on the inwall of combustion chamber 2
Have for separating the heat-insulation layer 7 of flame 5, and lay after heat-insulation layer 7, flame 5 will not be with guarantor on the direction of width and length
Warm layer 7 is contacted, and the use of heat-insulation layer 7 can be resistant to 1400 degrees Celsius of material, fundamentally avoid the overtemperature of equipment from damaging.
In addition, heat-insulation layer can also be coated in the outside of flue gas reheat stove, it is to avoid occur body of heater 1 overheat to other staff and
Object causes damage.
3rd embodiment of the present utility model is related to a kind of flue gas reheat stove, and the 3rd embodiment is to the first embodiment party
A kind of improvement of formula, is mainly theed improvement is that：In the present embodiment, with reference to shown in Fig. 4, being additionally provided with combustion chamber 2 is used for
The flue gas mixing arrangement of flue gas after mixed combustion.
In the present embodiment, flue gas mixing arrangement can be deflection plate 8, interlock in the top and bottom of combustion chamber 2 and set
Polylith deflection plate 8 is equipped with, flue gas is during towards outlet 4, and at least the flow direction of partial fume is hindered by deflection plate 8
Gear so that the flue gas being blocked has to change flow direction, so as to realize being sufficiently mixed for flue gas, makes the cigarette in combustion chamber 2
The more uniform temperature of gas.
It should be noted that deflection plate is various informative, and above-mentioned is to enumerate the relatively conventional mode of one of which, but
It is that present embodiment is not construed as limiting to the shape and arrangement mode of deflection plate.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific implementation of the present utility model
Example, and in actual applications, can to it, various changes can be made in the form and details, without departing from spirit of the present utility model
And scope.
Claims (8)
1. a kind of flue gas reheat stove, the body of heater of the reheater enters comprising combustion chamber, the combustion chamber flowed into for flue gas
Mouthful, outlet flow out for flue gas from the combustion chamber, to the body of heater combustion chamber offer heat burner, its feature
It is：The flue gas flows into the direction of the combustion chamber and the flue gas from the outlet outflow combustion chamber from the import
Direction be mutually perpendicular to, and the burner jet flames direction and flue gas from the Combustor Flows to the outlet
Direction is identical.
2. a kind of flue gas reheat stove according to claim 1, it is characterised in that：Use is equipped with the inwall of the combustion chamber
In the heat-insulation layer for separating flame.
3. a kind of flue gas reheat stove according to claim 1, it is characterised in that：It is additionally provided with the combustion chamber for mixing
The flue gas mixing arrangement of flue gas after the flame combustion.
4. a kind of flue gas reheat stove according to claim 3, it is characterised in that：The flue gas mixing arrangement is deflection plate.
5. a kind of flue gas reheat stove according to claim 1, it is characterised in that：It is additionally provided with the combustion chamber for observing
The observation device of picture in the combustion chamber.
6. a kind of flue gas reheat stove according to claim 1, it is characterised in that：The burner, which is included, to be used to provide combustion
The fuel supply system of material, the burning torch for lighting fuel, after the burning torch igniting, the fuel supply system is opened,
The fuel is ignited.
7. a kind of flue gas reheat stove according to claim 6, it is characterised in that：The flue gas reheat stove is also comprising control system
System, the burner, which is also included, is used to detecting the detector that whether has flame in the combustion chamber, the detector with it is described
Control system is connected, and after the burning torch igniting, the control system is detected in the combustion chamber in the detector fire
During flame, trigger the fuel supply system and open.
8. a kind of flue gas reheat stove according to claim 6, it is characterised in that：The flue gas reheat stove is also comprising control system
System, the burner, which is also included, to be used to increase the auxiliary combustion equipment of oxygen content in the combustion chamber, leaves reheating for detecting
The oxygen detection device of oxygen content in kiln gas, the auxiliary combustion equipment and the oxygen detection device respectively with the control system
Connection；
The control system triggers the combustion-supporting dress when the oxygen detection device detects the oxygen content less than preset value
Put unlatching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621196754.XU CN206386955U (en) | 2016-11-05 | 2016-11-05 | A kind of flue gas reheat stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621196754.XU CN206386955U (en) | 2016-11-05 | 2016-11-05 | A kind of flue gas reheat stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206386955U true CN206386955U (en) | 2017-08-08 |
Family
ID=59486608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621196754.XU Active CN206386955U (en) | 2016-11-05 | 2016-11-05 | A kind of flue gas reheat stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206386955U (en) |
-
2016
- 2016-11-05 CN CN201621196754.XU patent/CN206386955U/en active Active
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