CN108413384B - Energy-saving and emission-reducing device for heat accumulating type combustion - Google Patents
Energy-saving and emission-reducing device for heat accumulating type combustion Download PDFInfo
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- CN108413384B CN108413384B CN201810278531.5A CN201810278531A CN108413384B CN 108413384 B CN108413384 B CN 108413384B CN 201810278531 A CN201810278531 A CN 201810278531A CN 108413384 B CN108413384 B CN 108413384B
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- gas
- pipeline
- buffer tank
- control valves
- storage buffer
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- 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
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/008—Flow control devices
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- 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
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/02—Arrangements of regenerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/26—Details
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- 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
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/09002—Specific devices inducing or forcing flue gas recirculation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/04—Measuring pressure
- F23N2225/06—Measuring pressure for determining flow
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
Abstract
The invention relates to an energy-saving emission-reducing device for heat-accumulating combustion, which comprises a pair of multi-way pipelines communicated with an inlet pipe of a combustor in heat-accumulating combustion equipment, wherein each multi-way pipeline is connected with one end of a first gas pipeline, the other end of the first gas pipeline is communicated with a pneumatic storage and discharge mechanism or a piston type storage and discharge mechanism for periodic gas storage and discharge, and a plurality of gas control valves are also arranged on a pipeline communicated with an inlet of the combustor. The invention has simple structure and convenient use, the airflow control valve is opened and closed according to the action of the reversing valve, and the multi-way pipeline is utilized to mix the gas in the first gas pipeline and the second gas pipeline.
Description
Technical Field
The invention relates to the field of regenerative combustion, in particular to an energy-saving and emission-reducing device for regenerative combustion.
Background
At present, the heat accumulating type combustion field has the defect that during heat accumulating exchange, instant combustion mixed gas in a furnace can only be taken as tail gas to be discharged into the atmosphere, so that the pollution to the atmosphere is caused, and simultaneously, energy is wasted due to insufficient combustion of fuel. Taking the position of the reversing valve 5 in fig. 1 as an example, gas (gas fuel such as natural gas, coal gas, blast furnace gas, etc.) enters the combustor 2 through a pipeline 4 heated by the heat accumulator 3, then is combusted in the combustion chamber 1, and the combusted gas is discharged through the pipeline. However, in the combustion chamber 1, because the gas has complex components and contains a large amount of harmful gases such as CO, the harmful gases are taken as tail gas to be discharged out of the system through an air pipeline in the reversing process, which not only wastes energy, but also pollutes the environment.
Disclosure of Invention
The applicant carries out research and improvement aiming at the existing problems and provides an energy-saving and emission-reducing device for heat accumulating type combustion, which realizes the closed heat exchange of the heat accumulating type combustion, enables insufficient gas to be fully combusted and realizes the harmless emission of the gas.
The technical scheme adopted by the invention is as follows:
the utility model provides an energy saving and emission reduction device for heat accumulation formula burning, includes the one-to-many pipeline that communicates with the inside combustor import pipe of heat accumulation combustion apparatus, and each many logical pipeline is connected with the one end of first gas conduit, the other end of first gas conduit with be used for the periodic gas storage and exhaust pneumatic type storage emission mechanism or piston storage emission mechanism intercommunication, still set up a plurality of gas control valves on the pipeline of each many logical pipeline and combustor import intercommunication.
The further technical scheme is as follows:
the piston type storage and discharge mechanism comprises a gas storage buffer tank for storing gas, a piston for retaining gas at one side inside the gas storage buffer tank is arranged inside the gas storage buffer tank, and a piston power device for driving the piston to move is further arranged on the periphery of the gas storage buffer tank;
the pneumatic type storage and discharge mechanism also comprises a gas storage buffer tank for storing gas, and an air flow pump for retaining gas at one side inside the gas storage buffer tank is arranged inside the gas storage buffer tank;
the multi-way pipeline is a Y-shaped pipeline;
the gas storage buffer tank is any one of round, square, rectangular or polygonal;
the gas control valves are four in two groups, and are symmetrically arranged by taking the heat storage combustion equipment as a center; when one group of gas control valves are positioned at the station I, the other group of gas control valves are positioned at the station II, and the valve positions of the group of gas control valves positioned at the station I and the valve positions of the group of gas control valves positioned at the station II are vertical to each other.
The invention has the following beneficial effects:
the invention has simple structure and convenient use, the airflow control valve is opened and closed according to the action of the reversing valve, and the multi-way pipeline is utilized to mix the gas in the first gas pipeline and the second gas pipeline.
Drawings
Fig. 1 is a schematic structural view of a conventional regenerative combustion apparatus.
Fig. 2 is a schematic diagram of the present invention.
Fig. 3 is a schematic structural diagram of the present invention.
Figure 4 is a side view of the piston-type storage drain of the present invention.
FIG. 5 is a schematic diagram I of the movement direction of the piston controlled by the action of the reversing valve and the gas control valve.
FIG. 6 is a schematic diagram II of the movement direction of the piston controlled by the action of the reversing valve and the gas control valve. Wherein: 1. a combustion chamber; 2. a burner; 3. a heat accumulator; 401. a second gas conduit; 402. a third gas conduit; 5. a diverter valve; 6. a gas control valve; 7. a multi-way pipe; 8. a first gas conduit; 9. a piston; 10. a gas storage buffer tank; 11. an air inlet; 12. a gas inlet; 13. a first flue gas outlet; 14. a second flue gas outlet; 15. and a piston power device.
Detailed Description
The following describes specific embodiments of the present invention.
As shown in fig. 2 and 3, an energy saving and emission reduction device for regenerative combustion includes a pair of multi-way pipes 7 communicated with an inlet pipe of a burner inside regenerative combustion equipment, the multi-way pipes 7 are connected with one end of a first gas pipe 8, and the other end of the first gas pipe 8 is communicated with a pneumatic storage and discharge mechanism or a piston type storage and discharge mechanism for periodic gas storage and discharge. And a gas control valve 6 is also arranged on each gas pipeline of the multi-way pipeline 7 communicated with the inlet of the combustor, and the multi-way pipeline 7 is a Y-shaped pipeline.
As shown in fig. 3, the piston type storage and discharge mechanism includes a gas storage buffer tank 10 for storing gas, a piston 9 disposed inside the gas storage buffer tank 10 for retaining gas at one side inside the gas storage buffer tank 10, and a piston power device 15 disposed at the periphery of the gas storage buffer tank 10 for driving the piston 9 to move.
As shown in fig. 3, the pneumatic storage and discharge mechanism also includes a gas storage buffer tank 10 for storing gas, and a gas flow pump for retaining gas at one side inside the gas storage buffer tank 10 is provided inside the gas storage buffer tank 10.
The shape of the gas storage buffer tank 10 in the present invention is any one of circular, rectangular, square, and polygonal, and a profile structure may be adopted, and the specific volume of the gas storage buffer tank 10 may be increased or decreased depending on the heat capacity of the combustion chamber 1.
As shown in fig. 2, the regenerative combustion apparatus includes a combustion chamber 1, burners 2 are respectively disposed on two sides inside the combustion chamber 1, a pair of regenerators 3 are respectively disposed on two sides outside the combustion chamber 1, a second gas pipeline 401 and a third gas pipeline 402 are respectively connected in series between two adjacent burners 2, the second gas pipeline 401 and the third gas pipeline 402 both pass through the regenerators 3, a gas inlet 12 and a second gas outlet 14 are disposed on the second gas pipeline 401, an air inlet 11 and a first gas outlet 13 are disposed on the third gas pipeline 402, and two sides of each of the second gas pipeline 401 and the third gas pipeline 402 are collected by a multi-way pipeline 7. A reversing valve 5 is further provided at the second gas duct 401 where the gas inlet 12 and the second flue gas outlet 14 are provided, and a reversing valve 5 is also provided at the third gas duct 402 where the air inlet 11 and the first flue gas outlet 13 are provided.
As shown in fig. 1, the number of the gas control valves 6 is two, and the gas control valves 6 are symmetrically arranged around the heat storage combustion device; when one group of gas control valves 6 is positioned at the station I, the other group of gas control valves 6 is positioned at the station II, and the valve positions of the group of gas control valves 6 positioned at the station I and the valve positions of the group of gas control valves 6 positioned at the station II are vertical to each other.
The specific working process of the invention is as follows:
as shown in fig. 2 and 5, the two gas control valves 6 positioned at the left side of the combustion chamber 1 during normal operation are positioned as the middle two gas control valves 6 in fig. 5, the two gas control valves 6 positioned at the right side of the combustion chamber 1 are positioned perpendicular to the two gas control valves 6 positioned at the left side of the combustion chamber 1, the reversing valves 5 positioned on the second gas pipe 401 and the third gas pipe 402 are positioned as shown in fig. 5, the air inlet 11 is opened to allow air to enter the combustor 2 from the third gas pipe 402 through the regenerator 3 and to be combusted in the combustion chamber 1, because the left gas control valve 6 is in a closed state, the transition gas enters the gas storage buffer tank 10 from the multi-way pipe 7 and the first gas pipe 8 at the right side of the combustion chamber 1, the transition gas inside the system is retained in the left half tank or the right half tank of the gas storage buffer tank 10, the gas flow pump or piston 9 is pressurized by the right-hand entering transition gas to effect a right-to-left movement in the gas storage buffer tank 10.
At the moment of ventilation, the transition gas on one side of the piston 9 or the airflow pump is kept in the gas storage buffer tank 10, the transition gas on the other side enters the gas inlet of the combustor 2 through the third gas pipeline 402 on the left side of the combustion chamber 1 and the multi-way pipeline 7 (the opening and closing of the gas control valve 6 is also controlled by the gas pressure in the gas storage buffer tank 10, and when the gas pressure in the tank body reaches a certain value, the gas control valve 6 on the left side of the combustion chamber 1 is automatically opened), so that secondary combustion is realized. When the direction is changed again, the position of the reversing valve 5 is shown in fig. 6, the positions of the two gas control valves 6 on the left side of the combustion chamber 1 are shown in the middle two gas control valves 6 in fig. 6, and the positions of the two gas control valves 6 on the right side of the combustion chamber 1 are shown in the right two gas control valves 6 in fig. 6, so that the piston cluster moves left and right.
A heat accumulating type coking furnace of a certain large-scale steel coking plant in China. The yield of the plant is 220 ten thousand tons every year, each ton of coke of the plant consumes 1065 cubes of blast furnace gas and 18.7 cubes of coke oven gas, and after the invention is installed, 1 ton of coke of the plant consumes 960 cubes of blast furnace gas and 17 cubes of coke oven gas. The breakthrough of saving energy by 10% is realized. Meanwhile, the content of CO in the waste gas discharged by the plant is reduced to 30 percent of the original content.
The invention has simple structure and convenient use, the airflow control valve is opened and closed according to the action of the reversing valve, and the multi-way pipeline is utilized to mix the gas in the first gas pipeline and the second gas pipeline.
The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, the scope of the invention being defined by the appended claims, which may be modified in any manner without departing from the basic structure thereof.
Claims (3)
1. The utility model provides an energy saving and emission reduction device for heat accumulation formula burning which characterized in that: the device comprises a pair of multi-way pipelines (7) communicated with an inlet pipe of a burner in the heat storage combustion equipment, wherein the multi-way pipelines (7) are Y-shaped three-way pipelines; one side of a single pipe of each multi-way pipeline (7) is connected with one end of a first gas pipeline (8), the other end of the first gas pipeline (8) is communicated with a pneumatic storage and discharge mechanism or a piston type storage and discharge mechanism for periodic gas storage and discharge, and a plurality of gas control valves (6) are further arranged on a pipeline, communicated with an inlet of a combustor, on one side of a double pipe of each multi-way pipeline (7);
the piston type storage and discharge mechanism comprises a gas storage buffer tank (10) for storing gas, a piston (9) for retaining gas at one side inside the gas storage buffer tank (10) is arranged inside the gas storage buffer tank (10), and a piston power device (15) for driving the piston (9) to move is further arranged on the periphery of the gas storage buffer tank (10);
the pneumatic type storage and discharge mechanism also comprises a gas storage buffer tank (10) for storing gas, and an airflow pump for retaining gas at one side inside the gas storage buffer tank (10) is arranged inside the gas storage buffer tank (10).
2. The energy-saving emission-reducing device for regenerative combustion as claimed in claim 1, wherein: the gas storage buffer tank (10) is any one of round, square, rectangular or polygonal.
3. The energy-saving emission-reducing device for regenerative combustion as claimed in claim 1, wherein: the gas control valves (6) are four in total, and each group of gas control valves (6) are symmetrically arranged by taking the heat storage combustion equipment as a center; when one group of gas control valves (6) are positioned at the station I, the other group of gas control valves (6) are positioned at the station II, and the valve positions of the group of gas control valves (6) positioned at the station I and the valve positions of the group of gas control valves (6) positioned at the station II are vertical to each other.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810278531.5A CN108413384B (en) | 2018-03-30 | 2018-03-30 | Energy-saving and emission-reducing device for heat accumulating type combustion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810278531.5A CN108413384B (en) | 2018-03-30 | 2018-03-30 | Energy-saving and emission-reducing device for heat accumulating type combustion |
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| Publication Number | Publication Date |
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| CN108413384A CN108413384A (en) | 2018-08-17 |
| CN108413384B true CN108413384B (en) | 2020-06-26 |
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| CN201810278531.5A Active CN108413384B (en) | 2018-03-30 | 2018-03-30 | Energy-saving and emission-reducing device for heat accumulating type combustion |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206861552U (en) * | 2017-06-16 | 2018-01-09 | 山东驰盛新能源设备有限公司 | A kind of split type solid heat storage device |
| CN207035154U (en) * | 2017-06-29 | 2018-02-23 | 江苏三中奇铭环保设备有限公司 | A kind of RTO emission-control equipments |
| CN208124278U (en) * | 2018-03-30 | 2018-11-20 | 江阴优燃科技有限公司 | A kind of energy-saving emission-reducing apparatus for heat storage type combustion |
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2018
- 2018-03-30 CN CN201810278531.5A patent/CN108413384B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206861552U (en) * | 2017-06-16 | 2018-01-09 | 山东驰盛新能源设备有限公司 | A kind of split type solid heat storage device |
| CN207035154U (en) * | 2017-06-29 | 2018-02-23 | 江苏三中奇铭环保设备有限公司 | A kind of RTO emission-control equipments |
| CN208124278U (en) * | 2018-03-30 | 2018-11-20 | 江阴优燃科技有限公司 | A kind of energy-saving emission-reducing apparatus for heat storage type combustion |
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| CN108413384A (en) | 2018-08-17 |
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Denomination of invention: Energy saving and emission reduction device for regenerative combustion Effective date of registration: 20220308 Granted publication date: 20200626 Pledgee: Bank of Jiangsu Co.,Ltd. Jiangyin sub branch Pledgor: JIANGYIN YOURAN TECHNOLOGY CO.,LTD. Registration number: Y2022990000134 |