CN218002229U - System for improving flue gas recirculation pressure by utilizing hot press - Google Patents
System for improving flue gas recirculation pressure by utilizing hot press Download PDFInfo
- Publication number
- CN218002229U CN218002229U CN202221694314.2U CN202221694314U CN218002229U CN 218002229 U CN218002229 U CN 218002229U CN 202221694314 U CN202221694314 U CN 202221694314U CN 218002229 U CN218002229 U CN 218002229U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- hot press
- communicated
- industrial furnace
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 125
- 239000003546 flue gas Substances 0.000 title claims abstract description 125
- 238000002347 injection Methods 0.000 claims description 57
- 239000007924 injection Substances 0.000 claims description 57
- 239000000779 smoke Substances 0.000 claims description 11
- 230000001965 increasing effect Effects 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000003028 elevating effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 18
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- -1 steam Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/08—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
- F23B80/02—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel by means for returning flue gases to the combustion chamber or to the combustion zone
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chimneys And Flues (AREA)
Abstract
The utility model discloses an utilize hot press to promote flue gas recirculation pressure system, utilize hot press to promote flue gas recirculation pressure system includes industrial furnace, pre-heater and hot press, the industrial furnace has the flue gas jet, the pre-heater with the industrial furnace intercommunication, the hot press has the power tube, draws and penetrates pipe and blast pipe, power tube and high pressure source intercommunication, draw penetrate the pipe with the pre-heater intercommunication, the blast pipe with the flue gas jet intercommunication. The utility model discloses an utilize hot press to promote flue gas recirculation pressure system and reduced energy consumption and maintenance work load when effectively having restrained nitrogen oxide formation.
Description
Technical Field
The application belongs to the field of power generation, especially relates to an utilize hot press to promote flue gas recirculation pressure system.
Background
The flue gas recirculation means that air in the industrial furnace is preheated to extract a part of low-temperature flue gas, and the extracted flue gas is mixed with primary air or secondary air by a recirculation fan and then is fed into the furnace, so that the combustion temperature can be reduced, the oxygen concentration is also reduced, and the emission concentration of NOx is further reduced.
In the related technology, the flue gas recirculation generally uses a recirculation fan to extract the flue gas, and the flue gas is sent into an industrial furnace after being boosted, so that the energy consumption is high, and the fan belongs to a rotating machine, so that the failure rate is high, and the overhaul workload is large.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving one of the technical problems in the related art at least to a certain extent. Therefore, the embodiment of the utility model provides an utilize hot press to promote flue gas recirculation pressure system, should utilize hot press to promote flue gas recirculation pressure system and reduced energy consumption and maintenance work load when effectively having restrained nitrogen oxide and generating.
The utility model discloses utilize hot press to promote flue gas recirculation pressure system includes industrial furnace, pre-heater and hot press, industrial furnace has the flue gas jet, the pre-heater with industrial furnace intercommunication, the hot press has the power tube, draws and penetrates pipe and blast pipe, power tube and high pressure source intercommunication, draw penetrate the pipe with the pre-heater intercommunication, the blast pipe with the flue gas jet intercommunication.
The utility model discloses utilize hot press to promote flue gas recirculation pressure system and pass through the setting of hot press, let in the industrial furnace behind the flue gas pressure boost in will getting into the hot press, reduce local area's in the stove temperature and oxygen concentration to restrain nitrogen oxide's formation, simultaneously, there is not rotating member in the hot press, and need not auxiliary device such as transmission, reduced maintenance work load.
In some embodiments, the system for increasing the flue gas recirculation pressure by using a hot press further comprises a circulating fan, the circulating fan is connected in parallel with the hot press, the preheater, the circulating fan and the industrial furnace are sequentially communicated, and the preheater, the hot press and the industrial furnace are sequentially communicated; or the circulating fan and the hot press are arranged in series, and the preheater, the circulating fan, the hot press and the industrial furnace are communicated in sequence.
In some embodiments, the system for increasing the pressure of flue gas recirculation by using a hot press further includes an induced draft fan and a smoke exhaust device, the induced draft fan has an air inlet pipe and an exhaust pipe, the air inlet pipe is communicated with the pre-heater, the exhaust pipe is respectively communicated with the injection pipe and the smoke exhaust device, and the induced draft fan is configured to introduce a part of gas in the pre-heater into the hot press and introduce another part of gas into the smoke exhaust device.
In some embodiments, the flue gas injection port is provided in plurality, the flue gas injection ports are distributed at intervals along the flow direction of the flue gas in the industrial furnace, and the flue gas injection ports are all communicated with the exhaust pipe.
In some embodiments, the flue gas injection port is provided in plurality, and the plurality of flue gas injection ports are distributed at intervals along the circumferential direction of the industrial furnace, and the plurality of flue gas injection ports are all communicated with the exhaust pipe.
In some embodiments, the flue gas injection port has a plurality of circles, each circle of the flue gas injection port is distributed at intervals along the circumferential direction of the industrial furnace, the plurality of circles of the flue gas injection ports are distributed at intervals along the flowing direction of the flue gas in the industrial furnace, and the plurality of the flue gas injection ports are all communicated with the exhaust pipe.
In some embodiments, the flue gas injection port is provided in plurality, and the plurality of flue gas injection ports are spirally distributed at intervals, and are all communicated with the exhaust pipe.
In some embodiments, there are a plurality of the hot presses, a plurality of the hot presses are connected in series, the injection pipe of the first-stage hot press is communicated with the preheater, the injection pipes of the other hot presses are communicated with the exhaust pipe of the previous-stage hot press, and the exhaust pipe of the last-stage hot press is communicated with the industrial furnace.
In some embodiments, there are multiple hot presses, multiple hot presses are connected in parallel in sequence, the injection pipes of multiple hot presses are all communicated with the preheater, and the exhaust pipes of multiple hot presses are all communicated with the industrial furnace.
In some embodiments, the system for elevating flue gas recirculation pressure using a hot press further comprises a regulating valve disposed on the power tube.
Drawings
Fig. 1 is a schematic diagram of a system for increasing the pressure of flue gas recirculation by a hot press according to a first embodiment of the present invention.
Fig. 2 is a schematic diagram of a system for raising the pressure of flue gas recirculation by a hot press according to a second embodiment of the present invention.
Reference numerals are as follows:
an industrial furnace 1; a flue gas jet 11;
a preheater 2;
a hot press 3; a power pipe 31; an ejector tube 32; an exhaust pipe 33;
a circulating fan 4;
an induced draft fan 5;
a smoke exhaust device 6;
the valve 7 is adjusted.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.
The following describes a system for raising flue gas recirculation pressure by a hot press according to an embodiment of the present invention with reference to the drawings.
As shown in fig. 1 and fig. 2, the system for lifting flue gas recirculation pressure by using a hot press according to an embodiment of the present invention includes an industrial furnace 1, a preheater 2, and a hot press 3. Wherein, the industrial furnace 1 is an energy conversion device, such as a boiler, and the industrial furnace 1 is provided with a smoke jet 11; the preheater 2 is communicated with the top of the industrial furnace 1, the flue gas generated in the industrial furnace 1 is introduced into the preheater 2 through a pipeline, and the preheater 2 regulates and controls the temperature of the flue gas inside; the hot press 3 is provided with a power pipe 31, an injection pipe 32 and an exhaust pipe 33, the power pipe 31 is communicated with a high-pressure source, a medium of the high-pressure source can be one of water, steam, air and flue gas, a nozzle (not shown) communicated with the power pipe 31 is arranged in the hot press 3, the nozzle converts the high-pressure medium into a high-speed low-pressure medium, the injection pipe 32 is communicated with the preheater 2, the preheater 2 introduces the flue gas with regulated and controlled temperature into the hot press 3 through the injection pipe 32, the hot press 3 mixes the high-pressure medium and the low-pressure flue gas and improves the pressure of the flue gas, the exhaust pipe 33 is communicated with the flue gas injection port 11, and the hot press 3 introduces the mixed gas into the industrial furnace 1 through the exhaust pipe 33.
It should be noted that flue gas generated in the industrial furnace 1 is introduced into the preheater 2 through a pipeline, the preheater 2 regulates and controls the temperature of the flue gas therein and then introduces a part of the flue gas into the hot press 3 through the injection pipe 32, a high-pressure medium enters the hot press 3 through the power pipe 31 and is mixed with the flue gas so as to increase the pressure of the flue gas, and the mixed medium-pressure gas is introduced into the industrial furnace 1 through the exhaust pipe 33 so as to reduce the local temperature and oxygen content in the industrial furnace 1.
Therefore, the utility model discloses utilize hot press to promote flue gas recirculation pressure system passes through the setting of hot press 3, lets in industrial furnace 1 after the flue gas pressure boost in will getting into hot press 3 in, reduces local area's in the stove temperature and oxygen concentration to restrain nitrogen oxide's formation, high pressure medium and flue gas mix and further improved the cooling effect, simultaneously, do not have rotating member in the hot press 3, and need not auxiliary device such as transmission, reduced and overhauld work load.
Optionally, an exhaust pipe of the hot press 3 is communicated with the bottom of the industrial furnace 1, and flue gas adjusted by the hot press 3 enters the industrial furnace 1 from the bottom of the industrial furnace 1, so that the cooling effect is further improved, and the effect of inhibiting generation of nitrogen oxides is further improved.
Optionally, the nozzle is a fixed nozzle.
Optionally, the nozzle is an adjustable nozzle, and the adjustable nozzle adjusts the flow rate of the medium entering the hot press 3 by adjusting the flow area of the throat of the nozzle.
Alternatively, the nozzle is provided in plurality, and the plurality of nozzles are spaced apart in the heating press 3.
As shown in fig. 1, optionally, the system for increasing the flue gas recirculation pressure by using the hot press further includes a circulating fan 4, the circulating fan 4 is connected in parallel with the hot press 3, the preheater 2, the circulating fan 4 and the industrial furnace 1 are sequentially communicated, and the preheater 2, the hot press 3 and the industrial furnace 1 are sequentially communicated.
It should be noted that, when the amount of cold flue gas required by the industrial furnace 1 is less, only the hot press 3 is started; when the amount of cold flue gas required by the industrial furnace 1 is large, the circulating fan 4 and the hot press 3 are started simultaneously to increase the amount of flue gas entering the industrial furnace 1; when the hot press 3 is in failure, the circulating fan 4 is started to avoid the delay of the shutdown of the circulating system.
From this, the hot press utilization promotion flue gas recirculation pressure system of this embodiment can be according to the nimble selection of demand and open and close circulating fan through connecting hot press 3 and circulating fan 4 parallel arrangement, reduces circulating fan's fault rate when guaranteeing the required cold flue gas volume of industrial furnace 1.
As shown in fig. 2, optionally, the system for increasing the flue gas recirculation pressure by using the hot press further includes a circulating fan 4, the circulating fan 4 is connected in series with the hot press 3, and the preheater 2, the circulating fan 4, the hot press 3 and the industrial furnace 1 are sequentially communicated.
It should be noted that when the amount of cold flue gas required by the industrial furnace 1 is small, only the hot press 3 is started; when the amount of cold flue gas required by the industrial furnace 1 is large, the circulating fan is started to increase the pressure and the amount of the flue gas entering the hot press 3; when the high pressure source is in short supply or fails, the circulation fan is turned on to increase the pressure and amount of the flue gas entering the hot press 3.
From this, the hot press utilization promotion flue gas recirculation pressure system of this embodiment can be according to the nimble selection of demand and open and close circulating fan through establishing ties hot press 3 and circulating fan 4 and setting up, reduces circulating fan's fault rate when guaranteeing the required cold flue gas volume of industrial furnace 1.
As shown in fig. 1 and 2, in some embodiments, the system for raising the flue gas recirculation pressure by using the hot press further includes an induced draft fan 5 and a smoke exhaust device 6, the induced draft fan 5 has an air inlet pipe and an air outlet pipe, the air inlet pipe is communicated with the preheater 2, the air outlet pipe is respectively communicated with the induction pipe 32 and the smoke exhaust device 6, and the induced draft fan 5 is configured to introduce a part of the gas in the preheater 2 into the hot press 3 and introduce another part of the gas into the smoke exhaust device 6.
In some embodiments, there are multiple flue gas injection ports 11, and the multiple flue gas injection ports 11 are spaced apart on the industrial furnace 1.
Optionally, there are a plurality of flue gas injection ports 11, the plurality of flue gas injection ports 11 are distributed at intervals along the flow direction of the flue gas in the industrial furnace 1, and the plurality of flue gas injection ports 11 are all communicated with the exhaust pipe 33.
Alternatively, there are a plurality of flue gas injection ports 11, the plurality of flue gas injection ports 11 are distributed at intervals along the circumferential direction of the industrial furnace 1, and the plurality of flue gas injection ports 11 are all communicated with the exhaust pipe 33.
Optionally, the flue gas injection ports 11 have a plurality of circles, each circle of flue gas injection ports 11 is distributed at intervals along the circumferential direction of the industrial furnace 1, the plurality of circles of flue gas injection ports 11 are distributed at intervals along the flow direction of the flue gas in the industrial furnace 1, and the plurality of flue gas injection ports 11 are all communicated with the exhaust pipe 33.
Optionally, there are a plurality of flue gas injection ports 11, the plurality of flue gas injection ports 11 are spirally distributed at intervals, and the plurality of flue gas injection ports 11 are all communicated with the exhaust pipe 33.
Therefore, in the embodiments, the hot press is used to raise the flue gas recirculation pressure, and through the arrangement of the plurality of flue gas injection ports 11, the mixing effect of the flue gas introduced into the industrial furnace 1 by the hot press 3 and the flue gas inside the industrial furnace 1 is enhanced, and the generation of nitrogen oxides in the industrial furnace 1 is further inhibited.
In some embodiments, there are a plurality of hot presses 3, the hot presses 3 are connected in series, the injection pipe 32 of the first-stage hot press 3 is communicated with the preheater 2, the injection pipes 32 of the other hot presses 3 are communicated with the exhaust pipe 33 of the previous-stage hot press 3, and the exhaust pipe 33 of the last-stage hot press 3 is communicated with the industrial furnace 1.
From this, the system for utilizing the hot press to promote the flue gas recirculation pressure of this embodiment is connected in series in proper order through a plurality of hot presses 3, has improved the pressure of the flue gas that gets into in the industrial furnace 1.
In some embodiments, there are multiple hot presses 3, multiple hot presses 3 are connected in parallel in sequence, the injection pipes 32 of the multiple hot presses 3 are all communicated with the preheater 2, and the exhaust pipes 33 of the multiple hot presses 3 are all communicated with the industrial furnace 1.
Therefore, the system for improving the flue gas recirculation pressure by using the hot press in the embodiment is sequentially connected in parallel through the hot presses 3, so that the amount of flue gas entering the industrial furnace 1 is increased.
In some embodiments, the system for elevating flue gas recirculation pressure using a hot press further comprises a regulating valve 7, and the regulating valve 7 is disposed on the power pipe 31.
From this, the setting that utilizes hot press to promote flue gas recirculation pressure system of this embodiment passes through governing valve 7 can adjust the flow that gets into medium in the hot press 3, avoids using the medium too much and leads to the waste.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the above embodiments have been shown and described, it should be understood that they are exemplary and should not be construed as limiting the present invention, and that many changes, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.
Claims (10)
1. A system for increasing the pressure of a flue gas recirculation system using a hot press, comprising:
an industrial furnace having a flue gas injection orifice;
a preheater in communication with the industrial furnace;
the hot press is provided with a power pipe, an injection pipe and an exhaust pipe, the power pipe is communicated with a high-pressure source, the injection pipe is communicated with the preheater, and the exhaust pipe is communicated with the flue gas injection opening.
2. The system for elevating flue gas recirculation pressure using a hot press of claim 1, further comprising a recirculation fan,
the circulating fan is connected with the hot press in parallel, the preheater, the circulating fan and the industrial furnace are sequentially communicated, and the preheater, the hot press and the industrial furnace are sequentially communicated;
or the circulating fan and the hot press are arranged in series, and the preheater, the circulating fan, the hot press and the industrial furnace are communicated in sequence.
3. The system for improving the pressure of flue gas recirculation according to claim 1, further comprising an induced draft fan and a smoke exhaust device, wherein the induced draft fan is provided with an air inlet pipe and an air exhaust pipe, the air inlet pipe is communicated with the preheater, the air exhaust pipe is respectively communicated with the ejector pipe and the smoke exhaust device, and the induced draft fan is used for introducing a part of gas in the preheater into the hot press and introducing another part of gas into the smoke exhaust device.
4. The system for increasing flue gas recirculation pressure of a hot press according to claim 1, wherein the flue gas injection ports are multiple, the multiple flue gas injection ports are distributed at intervals along the flow direction of the flue gas in the industrial furnace, and the multiple flue gas injection ports are all communicated with the exhaust pipe.
5. The system for improving the pressure of flue gas recirculation through a hot press according to claim 1, wherein the flue gas injection ports are distributed at intervals along the circumferential direction of the industrial furnace, and the flue gas injection ports are all communicated with the exhaust pipe.
6. The system for increasing flue gas recirculation pressure of a hot press according to claim 1, wherein the flue gas injection port has a plurality of rings, each ring of the flue gas injection port is spaced along a circumferential direction of the industrial furnace, the plurality of rings of the flue gas injection ports are spaced along a flow direction of flue gas in the industrial furnace, and the plurality of the flue gas injection ports are all communicated with the exhaust pipe.
7. The system for increasing flue gas recirculation pressure using a hot press according to claim 1, wherein the flue gas injection ports are multiple, the multiple flue gas injection ports are spirally spaced, and the multiple flue gas injection ports are all communicated with the exhaust pipe.
8. The system for improving the flue gas recirculation pressure by using the hot press according to claim 1, wherein the hot press comprises a plurality of hot presses, the hot presses are sequentially connected in series, the ejector pipe of the first hot press is communicated with the preheater, the ejector pipes of the other hot presses are communicated with the exhaust pipe of the last hot press, and the exhaust pipe of the last hot press is communicated with the industrial furnace.
9. The system for improving the pressure of flue gas recirculation according to claim 1, wherein a plurality of hot presses are provided, the plurality of hot presses are connected in parallel in sequence, the injection pipes of the plurality of hot presses are all communicated with the preheater, and the exhaust pipes of the plurality of hot presses are all communicated with the industrial furnace.
10. The system of claim 1, further comprising a regulating valve disposed on the power tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221510512 | 2022-06-16 | ||
| CN2022215105129 | 2022-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218002229U true CN218002229U (en) | 2022-12-09 |
Family
ID=83381416
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221694314.2U Active CN218002229U (en) | 2022-06-16 | 2022-06-30 | System for improving flue gas recirculation pressure by utilizing hot press |
| CN202210764122.2A Pending CN115127097A (en) | 2022-06-16 | 2022-06-30 | Flue gas recirculation hot press system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210764122.2A Pending CN115127097A (en) | 2022-06-16 | 2022-06-30 | Flue gas recirculation hot press system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN218002229U (en) |
-
2022
- 2022-06-30 CN CN202221694314.2U patent/CN218002229U/en active Active
- 2022-06-30 CN CN202210764122.2A patent/CN115127097A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN115127097A (en) | 2022-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102635852A (en) | Fuel oil/gas boiler for reducing emission of nitric oxides and method | |
| CN109326805A (en) | A kind of solid oxide fuel cell power generating system and technique | |
| RU2010154445A (en) | METHOD AND SYSTEM FOR ENERGY GENERATION BY BURNING IN PURE OXYGEN | |
| CN109539258A (en) | A kind of low NOx radiant tube combustion system of adjustable smoke backflow amount | |
| CN218002229U (en) | System for improving flue gas recirculation pressure by utilizing hot press | |
| WO2019042155A1 (en) | Plasma heating-based temperature regulation method and device for blast furnace hot air system | |
| CN206129338U (en) | Gas - steam combined cycle distributing type energy supply system | |
| CN114837757B (en) | High-water-adding bypass frequency modulation system of thermal power plant provided with steam ejector and working method | |
| CN103196218A (en) | Positive-pressure-injecting type fully-premixed combustion heating device | |
| CN217410251U (en) | Full-load denitration bypass flue system coupled with urea hydrolysis | |
| CN114811549A (en) | Safe and efficient steam boiler system | |
| CN109611830A (en) | For firing the flue gas recirculation device and method of coke-stove gas | |
| CN214581016U (en) | Energy-saving and emission-reducing system for small and medium-sized natural gas boilers | |
| CN203190603U (en) | Positive-pressure ejection type full premixed combustion heat supply device | |
| CN114623439A (en) | Combustion equipment of water-coal-slurry circulating fluidized bed boiler | |
| CN107883374A (en) | A kind of natural gas boiler low nitrogen burning system and technique | |
| CN113739189A (en) | Boiler air-smoke system for blending combustion of low-calorific-value lignite and modification method | |
| CN209672324U (en) | A kind of low NOx radiant tube combustion system of adjustable smoke backflow amount | |
| CN112984486A (en) | Energy-saving and emission-reducing system and method for small and medium-sized natural gas boilers | |
| CN105698162A (en) | System and method for adjusting air temperature of inlet of coal mill through fed water | |
| CN206280936U (en) | A kind of combustion gas simple cycle distributing-supplying-energy system | |
| CN104807338A (en) | Coal gas, converter steam and sintering waste heat combined power generation device and waste heat utilization method | |
| CN111288810A (en) | Device and method for efficiently generating power by using waste heat steam of converter | |
| CN206073757U (en) | A kind of Cryogenic air discharges gas heat riser | |
| CN221146505U (en) | System for simultaneously improving water supply temperature and hot air temperature of power station boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |