CN210004368U - System for increasing steam temperature of garbage incinerator by using percolate methane - Google Patents
System for increasing steam temperature of garbage incinerator by using percolate methane Download PDFInfo
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- CN210004368U CN210004368U CN201920430630.0U CN201920430630U CN210004368U CN 210004368 U CN210004368 U CN 210004368U CN 201920430630 U CN201920430630 U CN 201920430630U CN 210004368 U CN210004368 U CN 210004368U
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- steam
- marsh gas
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- air
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 238000004056 waste incineration Methods 0.000 claims abstract description 22
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003546 flue gas Substances 0.000 claims abstract description 21
- 239000002918 waste heat Substances 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 17
- 239000003345 natural gas Substances 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 14
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000001914 filtration Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000000605 extraction Methods 0.000 abstract description 5
- 239000002360 explosive Substances 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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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
Abstract
The utility model provides an system for utilize filtration liquid marsh gas to improve waste incinerator steam temperature, the marsh gas that the filtration liquid produced has rationally been utilized, improve its utilization ratio, avoid marsh gas to spout into the interior local high temperature that burns and cause of burning, the flammable easy explosive characteristic of marsh gas has also been avoided to the security influence of boiler plant, high temperature flue gas heating waste incinerator superheated steam that burns and produces through marsh gas, step has improved the steam parameter of waste incineration power plant, realize high-efficient electricity generation, the flue gas composition that marsh gas burns and produces is simple, the emergence of the high temperature corrosion condition has been avoided, the equipment cost increase expense that conventional waste incinerator improved steam parameter and brought has been saved, utilize the high temperature flue gas waste heat heating times wind that marsh gas burning produced, the problem of air heater low temperature corrosion has been avoided, the steam turbine steam extraction volume that waste heat boiler of waste heat boiler was used for heating times wind has been saved simultaneously, the steam volume that.
Description
Technical Field
The utility model relates to a refuse treatment technique especially relates to kinds of systems that utilize filtration liquid marsh gas to improve waste incinerator steam temperature.
Background
With the improvement of the living standard of people in China, the output of domestic garbage is obviously increased, and the number of corresponding garbage incineration power plants is increased day by day. In the existing waste incineration plants built and under construction in China, most of steam parameters of the waste incineration plants are medium-temperature and medium-pressure parameters, and a small number of waste incineration power plants adopt medium-temperature and secondary-high-pressure parameters, so that the power generation efficiency of the waste incineration power plants can be effectively improved by improving the steam parameters.
Meanwhile, the flue gas is used for preheating combustion-supporting air, so that low-temperature corrosion is easily caused to an air preheater, a waste incineration power plant is forced to adopt an external steam-air preheater, times of air is heated by using steam extracted by a steam turbine, the equipment cost is increased, the steam amount for power generation is reduced, meanwhile, a large amount of percolate is generated by garbage fermentation, and a large amount of methane generated by the percolate is directly sent to a waste incinerator for incineration, so that the utilization rate is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the utility model provides a kind of system for utilizing leachate marsh gas to improve waste incinerator steam temperature, including leachate processing apparatus, marsh gas purifier, gas furnace, waste incineration exhaust-heat boiler, heat exchanger, air heater, turbo generator, the marsh gas that leachate processing apparatus produced gets into the gas furnace burning after marsh gas purifier, produced high temperature flue gas gets into the heat exchanger makes the steam in the heat exchanger heat up, then high temperature flue gas reenters air heater and heats the air, produced hot air is carried waste incineration exhaust-heat boiler, high temperature flue gas is discharged after getting into the heat exchanger through the heat transfer, steam that waste incineration exhaust-heat boiler produced gets into after the heat exchanger temperature advances steps and promotes its electricity generation, and, still insert the air respectively in gas furnace and the air heater, the utility model provides a kind of system for utilizing leachate to improve waste incinerator steam temperature can effectively solve prior art problem.
The utility model provides a utilize leachate marsh gas to improve system of waste incinerator steam temperature, characterized by, including leachate processing apparatus, marsh gas purifier, gas furnace, waste incineration exhaust-heat boiler, heat exchanger, air heater, turbo generator, the marsh gas that leachate processing apparatus produced gets into the gas furnace burning after marsh gas purifier, produced high temperature flue gas gets into the heat exchanger makes the steam in the heat exchanger heat up, then high temperature flue gas gets into the air heater again and heats the air, produced hot air is carried to waste incineration exhaust-heat boiler, high temperature flue gas is discharged after getting into the heat exchanger through the heat transfer, steam that waste incineration exhaust-heat boiler produced gets into after the heat exchanger temperature advances step and promotes, later get into turbo generator and promote its electricity generation, and, still insert the air in gas furnace and air heater respectively;
natural gas is also connected into the gas furnace, a steam-air preheater is additionally arranged before the waste incineration waste heat boiler, air is also connected into the steam-air preheater, and hot air generated by the steam-air preheater is conveyed to the waste incineration waste heat boiler;
when the biogas generation amount is insufficient, natural gas is started and supplemented into the gas furnace for combustion supporting, and the steam is extracted from the turbonator to the steam-air preheater for heating times of air required by garbage incineration;
when the biogas production is normal, the natural gas is closed; and, air extraction from the turbo generator is eliminated.
The beneficial effects of the utility model are that the utility model provides a system for utilizing filtration liquid marsh gas to improve waste incinerator steam temperature has rationally utilized the marsh gas that filtration liquid produced, improve its utilization ratio, avoid marsh gas to spout the burning local high temperature that causes in the stove, also avoided the flammable easy explosive characteristic of marsh gas to the security influence of boiler plant, high temperature flue gas heating waste incinerator superheated steam that produces through marsh gas burning, step-by-step waste incineration power plant steam parameter has been improved, realize high-efficient power generation, the flue gas composition that marsh gas burning produced is simple, the emergence of the high temperature corrosion condition has been avoided, the equipment cost increase expense that conventional waste incinerator improved steam parameter and brought has been saved, utilize the high temperature flue gas waste heat heating times wind that marsh gas burning produced, the problem of air heater low temperature corrosion has been avoided, the steam turbine steam extraction volume that waste heat boiler used for heating times of wind has been saved simultaneously, the steam volume that is used for the electricity generation has been increased.
Drawings
Fig. 1 is a layout diagram of exemplary systems according to the present invention.
In the figure:
1 leachate treatment device;
2 a biogas purification device;
3, a gas furnace;
4, a waste incineration waste heat boiler;
5, a heat exchanger;
6, an air preheater;
7 a steam turbine generator;
8 steam-air preheater.
Detailed Description
FIG. 1 is a layout diagram of exemplary systems according to the present invention, which shows that in this example, exemplary systems using leachate biogas to increase the temperature of steam in a garbage incinerator include a leachate treatment device 1, a biogas purification device 2, a gas furnace 3, a garbage incineration exhaust-heat boiler 4, a heat exchanger 5, an air preheater 6, a turbo generator 7, and a steam-air preheater 8. after passing through the biogas purification device 2, biogas generated by the leachate treatment device 1 enters the gas furnace 3 to be combusted, generated high temperature flue gas enters the heat exchanger 5 to heat the steam in the heat exchanger 5, and then enters the air preheater 6 to heat the air, the generated hot air is delivered to the garbage incineration exhaust-heat boiler 4, the high temperature flue gas is discharged after entering the heat exchanger 5 to exchange heat, after entering the heat exchanger 5, the steam generated by the garbage incineration exhaust-heat boiler 4 is heated in steps, and then enters the turbo generator 7 to drive the steam generator to generate electricity, and air is also respectively introduced into the gas furnace 3 and the air preheater 6.
In this embodiment, natural gas is also introduced into the gas furnace 3, a steam-air preheater 8 is further added before the waste incineration exhaust-heat boiler 4, air is also introduced into the steam-air preheater 8, and hot air generated by the steam-air preheater 8 is delivered to the waste incineration exhaust-heat boiler 4.
When the methane generation amount is insufficient, natural gas is started and supplemented into the gas furnace 3 for combustion supporting, and the air is extracted from the turbonator 7 to the steam-air preheater 8 to heat times of air required by garbage incineration.
When the biogas production is normal, the natural gas is closed; and, air extraction from the turbo generator 7 is cancelled.
The utility model provides a system for utilize filtration liquid marsh gas to improve waste incinerator steam temperature, the marsh gas that the filtration liquid produced has rationally been utilized, improve its utilization ratio, avoid marsh gas to spout into the interior local high temperature that burns and cause, the flammable easy explosive characteristic of marsh gas has also been avoided to the security influence of boiler plant, high temperature flue gas heating waste incinerator superheated steam that burns and produce through marsh gas, step has improved the steam parameter of waste incineration power plant, realize high-efficient electricity generation, the flue gas composition that marsh gas burns and produces is simple, the emergence of the high temperature corrosion condition has been avoided, the equipment cost increase expense that conventional waste incinerator improved steam parameter and brought has been saved, utilize the high temperature flue gas waste heat heating times wind that marsh gas burning produced, the problem of air heater low temperature corrosion has been avoided, the turbine steam extraction volume that the waste heat boiler of waste incineration used for heating times wind has been saved simultaneously, the steam volume that is used for the electricity.
Claims (1)
- The system for increasing the steam temperature of the garbage incinerator by using leachate biogas is characterized by comprising a leachate treatment device, a biogas purification device, a gas furnace, a garbage incineration waste heat boiler, a heat exchanger, an air preheater and a turbine generator, wherein the leachate treatment device generates biogas which enters the gas furnace for combustion after passing through the biogas purification device, the generated high-temperature flue gas enters the heat exchanger to heat steam in the heat exchanger, then the high-temperature flue gas enters the air preheater to heat air, the generated hot air is conveyed to the garbage incineration waste heat boiler, the high-temperature flue gas enters the heat exchanger to be subjected to heat exchange and then is discharged, the temperature of the steam generated by the garbage incineration waste heat boiler enters the heat exchanger and then is increased by steps, and then the steam enters the turbine generator to drive the turbine generator to generate electricity;and natural gas is also connected into the gas furnace, a steam-air preheater is also added before the waste incineration waste heat boiler, air is also connected into the steam-air preheater, and hot air generated by the steam-air preheater is conveyed to the waste incineration waste heat boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920430630.0U CN210004368U (en) | 2019-04-01 | 2019-04-01 | System for increasing steam temperature of garbage incinerator by using percolate methane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920430630.0U CN210004368U (en) | 2019-04-01 | 2019-04-01 | System for increasing steam temperature of garbage incinerator by using percolate methane |
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| Publication Number | Publication Date |
|---|---|
| CN210004368U true CN210004368U (en) | 2020-01-31 |
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| CN201920430630.0U Active CN210004368U (en) | 2019-04-01 | 2019-04-01 | System for increasing steam temperature of garbage incinerator by using percolate methane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432110A (en) * | 2021-06-29 | 2021-09-24 | 无锡华光环保能源集团股份有限公司 | Garbage waste heat boiler with external superheater for improving main steam parameters |
-
2019
- 2019-04-01 CN CN201920430630.0U patent/CN210004368U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432110A (en) * | 2021-06-29 | 2021-09-24 | 无锡华光环保能源集团股份有限公司 | Garbage waste heat boiler with external superheater for improving main steam parameters |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518046 13th Floor, Times Financial Center, 4001 Shennan Avenue, Futian District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Energy and environmental protection Co.,Ltd. Address before: 518046 13th Floor, Times Financial Center, 4001 Shennan Avenue, Futian District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ENERGY ENVIRONMENTAL ENGINEERING Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A system for using leachate biogas to increase the steam temperature of garbage incinerators Effective date of registration: 20231130 Granted publication date: 20200131 Pledgee: Shenzhen Energy Finance Co.,Ltd. Pledgor: Shenzhen Energy and environmental protection Co.,Ltd. Registration number: Y2023980068515 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200131 Pledgee: Shenzhen Energy Finance Co.,Ltd. Pledgor: Shenzhen Energy and environmental protection Co.,Ltd. Registration number: Y2023980068515 |