CN212108413U - Air supply system between waste incineration power plant boiler with rubbish pond negative pressure - Google Patents
Air supply system between waste incineration power plant boiler with rubbish pond negative pressure Download PDFInfo
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- CN212108413U CN212108413U CN201922206879.6U CN201922206879U CN212108413U CN 212108413 U CN212108413 U CN 212108413U CN 201922206879 U CN201922206879 U CN 201922206879U CN 212108413 U CN212108413 U CN 212108413U
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- air
- primary
- supply system
- negative pressure
- air supply
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 73
- 238000004056 waste incineration Methods 0.000 title claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 50
- 239000002699 waste material Substances 0.000 claims abstract 3
- 238000002309 gasification Methods 0.000 claims description 12
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 16
- 238000001035 drying Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 8
- 230000003584 silencer Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004630 mental health Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
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Abstract
The negative pressure system of the garbage pool of the existing garbage power plant consists of a primary air system of an air supply system between boilers and a negative pressure fan, wherein the primary air system of the air supply system between the boilers takes air from the garbage pool and then supplies the air to an incineration grate of the boiler; the negative pressure fan is arranged on the roof of the garbage pool to extract the mixed gas in the garbage pool and discharge the mixed gas to the outside of the roof of the garbage pool. The problem is that the existing system is difficult to establish a stable garbage pool negative pressure system. In order to overcome the prior art problem, the utility model provides a boiler room air supply system of a waste incineration power plant with a negative pressure of a waste pool, wherein primary cooling air of the boiler room air supply system is taken by a primary air main pipe of the boiler room air supply system; a secondary air main pipe of an air supply system between the boilers is provided with an air inlet from the garbage pool; and the cooling air of the boiler wall of the air supply system in the boiler is taken from the height of zero meter of a secondary air main pipe of the air supply system in the boiler. Effectively solves the problems that the negative pressure of the garbage pool is difficult to establish and the odor is easy to overflow, and ensures the life safety of operating personnel and the environmental protection image of enterprises in the garbage pool.
Description
Technical Field
The utility model relates to an air supply system between msw incineration power plant boiler especially relates to an air supply system between msw incineration power plant boiler with rubbish pond negative pressure.
Background
In the operation process of the garbage incinerator, the air supply system between the boilers comprises a primary air system, a primary cooling air system, a secondary air system and a furnace wall cooling air system, wherein the primary air system is supplied by a drying fan and a gasification fan, the drying fan is used for drying garbage entering a grate, the gasification fan provides combustion oxygen, and the incineration of the garbage is completed under the combined action; the primary cooling air system is supplied by a primary cooling fan and provides cooling air for the tail end of the fire grate, so that garbage is fully combusted, and the tail end fire grate is protected; the secondary air system is supplied by a secondary fan to supply air to the hearth and mainly plays a role in supporting combustion; the furnace wall cooling air system is supplied by furnace wall cooling air, so that the safe operation of the boiler furnace wall is ensured.
At present, in the operation process of the garbage incinerator, in order to ensure that the odor in the garbage pool of the garbage power plant does not overflow, negative pressure needs to be kept between the garbage pools of the garbage power plant (namely, the air pressure in the garbage pools is less than the external atmospheric pressure).
The negative pressure system of the garbage pool of the existing garbage power plant is composed of a primary air system of an air supply system between boilers and a negative pressure fan, wherein the primary air system of the air supply system between the boilers takes air from the wall of the garbage pool at the height of 15 meters, the air is supplied to a boiler incineration grate, and the negative pressure fan is installed on the roof of the garbage pool to extract mixed gas in the garbage pool and discharge the mixed gas to the outside of the roof of the garbage pool through inorganization. The primary cooling air of the air supply system between the boilers takes air from the height of 6 meters between the boilers, the secondary air of the air supply system between the boilers takes air from the height of 15 meters between the boilers, and the cooling air of the wall of the air supply system between the boilers takes air from the height of zero meters between the boilers.
The problem is that the air quantity of a primary air system of an air supply system between boilers is difficult to establish a negative pressure system of the garbage pool. The primary cooling air, the secondary air and the furnace wall cooling air of the air supply system in the boiler room are taken from different elevations in the boiler room and cannot be utilized, and the concentration of toxic and harmful gases in the garbage pool is easy to rise to harm the life safety of operating personnel. Therefore, the roof negative pressure fan of the garbage pool must continuously run. The discharged mixed gas has complex components and high odor concentration, greatly influences the surrounding environment, and is not beneficial to the physical and mental health of operators and the environment-friendly image of enterprises.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical problem that the negative pressure of the existing garbage pool is difficult to establish, the utility model provides a boiler room air supply system of a garbage incineration power plant with the negative pressure of the garbage pool, and primary cooling air of the boiler room air supply system is taken by a primary air main pipe of the boiler room air supply system; a secondary air main pipe of an air supply system between the boilers is provided with an air inlet from the garbage pool; and the cooling air of the boiler wall of the air supply system in the boiler is taken from the height of zero meter of a secondary air main pipe of the air supply system in the boiler. Effectively solves the problems that the negative pressure of the garbage pool is difficult to establish and the odor is easy to overflow, and ensures the life safety of operating personnel and the environmental protection image of enterprises in the garbage pool.
The technical scheme that the technical problem that the utility model solves is, a waste incineration power plant boiler room air supply system with rubbish pond negative pressure, by the primary air system, overgrate air system and furnace wall cooling air system composition, the primary air system includes once gasifies the air system, once dries air system and once cools off the air system, once dries air system and once gasifies the air system and get wind from rubbish pond one wind intake port through the main pipe of one wind, characterized by, once cool off the wind through the main pipe of one wind zero meter elevation get wind; taking secondary air from a secondary air taking port of the garbage pool; the furnace wall cooling air is taken from the secondary air main pipe at the height of zero meter.
The utility model discloses an optimal scheme is, rubbish pond wind intake elevation is rubbish pond ground 15 meters elevation.
The utility model discloses an optimal scheme is, rubbish pond overgrate air intake elevation is rubbish pond ground 15 meters elevation.
The utility model has the advantages that: the primary cooling air system, the secondary air system and the furnace wall cooling air system of the air supply system between the boilers are all changed into a garbage pool to take air, stable negative pressure of the garbage pool is established, the air suction speed at the garbage discharge door of the garbage pool reaches 0.72m/s, the air suction effect is obvious, the odor of the garbage pool does not obviously overflow any more, the negative pressure in the garbage pool is maintained between-30 kpa and-50 kpa, all generated toxic and harmful gases are conveyed into a hearth through the boiler air supply system, the concentration of the toxic and harmful gases in the garbage pool is within a safe range, the combustion working condition of the hearth is improved, the life safety of operating personnel in the garbage pool is guaranteed, and the boiler load is also improved.
Drawings
Fig. 1-3 are schematic diagrams of system arrangements according to one embodiment of the prior art. Wherein, fig. 1 is a primary air system diagram of an original air supply system between boilers, fig. 2 is a secondary air system diagram of the original air supply system between boilers, and fig. 3 is a furnace wall cooling air system diagram of the original air supply system between boilers.
Fig. 4-6 are schematic diagrams of the system layout according to the first embodiment of the present invention. Fig. 4 is a diagram of a primary air system of an air supply system of a boiler room of the present embodiment, fig. 5 is a diagram of a secondary air system of an air supply system of a boiler room of the present embodiment, and fig. 6 is a diagram of a cooling air system of a furnace wall of the air supply system of the boiler room of the present embodiment.
In the figure:
1, a primary air system;
1.0 the wall of the garbage pool;
1.1 taking an air inlet by primary air with the height of 15 meters in the garbage pool, taking an air inlet by cooling air with the height of zero meter in a boiler room of 1.1A, taking an air inlet by primary cooling air with the height of 6 meters in a boiler room of 1.1B and taking a secondary air inlet with the height of 9 meters in a boiler room of 1.1C;
1.22 primary air main pipe;
1.31 primary gasification air system, 1.311 primary gasification air silencer, 1.312 primary gasification air fan, 1.313 primary gasification air preheater, 1.314 primary gasification air door baffle;
1.32 primary drying air system, 1.321 primary drying air silencer, 1.322 primary drying air fan, 1.323 primary drying air preheater and 1.324 primary drying air door baffle;
1.33 primary cooling air system, 1.331 primary cooling air silencer, 1.332 primary cooling air fan, 1.333 primary cooling air preheater and 1.334 primary cooling air door baffle;
2 a secondary air system;
2.1A and 2.1B garbage pools are provided with secondary air intake ports at the height of 15 meters;
2.2 secondary air main pipe;
2.31 secondary air silencer, 2.32 secondary air blower and 2.33 secondary air preheater;
3 furnace wall cooling air system;
3.1 furnace wall cooling air silencer and 3.2 furnace wall cooling air fan;
4, incinerator grates;
5 incinerator hearth, 5.1 hearth wall.
Detailed Description
Fig. 1-3 are schematic diagrams of system arrangements according to one embodiment of the prior art. Wherein, fig. 1 is a primary air system diagram of an original air supply system between boilers, fig. 2 is a secondary air system diagram of the original air supply system between boilers, and fig. 3 is a furnace wall cooling air system diagram of the original air supply system between boilers.
In fig. 1, the air supply system between the boilers includes a primary air system 1, a secondary air system 2, and a furnace wall cooling air system 3, and the primary air system 1 includes a primary gasification air system 1.31, a primary drying air system 1.32, and a primary cooling air system 1.33.
In the prior art, a primary gasification air system 1.31 and a primary drying air system 1.32 of a garbage power plant take air from a primary air taking port 1.1 at the height of 15 meters of a garbage pool, and then supply the air to a boiler incineration grate 4; and the primary cooling air system 1.33 takes air from a primary cooling air intake 1.1B at the height of 6 meters in the boiler room.
Fig. 2 shows that the secondary air system 2 takes air from a secondary air intake port 1.1C at a level of 9 m in the boiler room and then supplies the air to the incinerator hearth 5.
Fig. 3 shows that the furnace wall cooling air system 3 takes air from a furnace wall cooling air taking port 1.1A at the height of zero meter between boilers and then sends the air to the furnace hearth wall 5.1 of the incinerator.
In the prior art, only the primary gasification air system 1.31 and the primary drying air system 1.32 in the air supply system between the boilers take air from the garbage pool. It is difficult to establish a negative pressure system for the garbage pool. The primary cooling air system 1.33, the secondary air system 2 and the furnace wall cooling air system 3 all take air from different elevations in the boiler room, and are not applied to the aspect of improving the negative pressure of the garbage pool. Leading to the concentration of poisonous and harmful gas in the garbage pool to rise continuously until the life safety of the operating personnel is harmed. Therefore, in the prior art, the negative pressure fan is installed on the roof of the garbage pool and continuously and uninterruptedly operates, the discharged mixed gas has complex components and high odor concentration, and has great influence on the surrounding environment, thereby being not beneficial to the physical and mental health of operators and the environmental protection image of enterprises.
Fig. 4-6 are schematic diagrams of the system layout according to the first embodiment of the present invention. Fig. 4 is a diagram of a primary air system of an air supply system of a boiler room of the present embodiment, fig. 5 is a diagram of a secondary air system of an air supply system of a boiler room of the present embodiment, and fig. 6 is a diagram of a cooling air system of a furnace wall of the air supply system of the boiler room of the present embodiment.
In the figure, different from the prior art, in the example, the air intake of the primary cooling air system 1.33 is changed from the primary cooling air intake 1.1B at the height of 6 meters in the boiler room to the height of 1.22 zero meters in the primary air main pipe; the air intake port of the secondary air system 2 is changed from a secondary air intake port 1.1C at the height of 9 meters in the boiler room to secondary air intake ports 2.1A and 2.1B at the height of 15 meters in the garbage pool; the air intake of the furnace wall cooling air system 3 is changed from the zero meter height air intake 1.1A of the furnace wall cooling air between the boilers to the 2.2 zero meter height of the secondary air main pipe. The utility model discloses the suggestion, in this example, does not install rubbish pond roof negative-pressure air fan.
In the embodiment, a primary air system, a secondary air system and a furnace wall cooling air system which are included in an air supply system between the boilers are all changed to a garbage pool for air taking, so that stable garbage pool negative pressure is sufficiently established. In the implementation and application process, the air suction speed at the garbage discharge door of the garbage pool reaches 0.72m/s, the air suction effect is obvious, the negative pressure in the garbage pool is maintained between-30 kpa and-50 kpa, the odor in the garbage pool does not overflow obviously, the cleanness and sanitation of the working environment of operators around the garbage pool are effectively guaranteed, and the working efficiency of a boiler is improved.
Claims (3)
1. A kind of air supply system between the boiler of the refuse burning power plant with negative pressure of refuse pool, it is made up of primary air system, overgrate air system and furnace wall cooling air system, the primary air system includes the primary gasification air system, primary dry air system and primary cooling air system, primary dry air system and primary gasification air system get wind from refuse pool primary wind intake port through the primary wind main pipe, its characteristic is, the primary cooling wind gets wind through the primary wind main pipe zero meter elevation; taking secondary air from a secondary air taking port of the garbage pool; the furnace wall cooling air is taken from the secondary air main pipe at the height of zero meter.
2. The air supply system with negative pressure for the waste incineration power plant boiler room as claimed in claim 1, wherein the elevation of the primary air intake port of the waste pool is 15 m above the ground of the waste pool.
3. The boiler room air supply system of the refuse incineration power plant with the negative pressure of the refuse pond as claimed in claim 1, wherein the elevation of the secondary air intake port of the refuse pond is 15 m above the ground of the refuse pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922206879.6U CN212108413U (en) | 2019-12-10 | 2019-12-10 | Air supply system between waste incineration power plant boiler with rubbish pond negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922206879.6U CN212108413U (en) | 2019-12-10 | 2019-12-10 | Air supply system between waste incineration power plant boiler with rubbish pond negative pressure |
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| Publication Number | Publication Date |
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| CN212108413U true CN212108413U (en) | 2020-12-08 |
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|---|---|---|---|
| CN201922206879.6U Active CN212108413U (en) | 2019-12-10 | 2019-12-10 | Air supply system between waste incineration power plant boiler with rubbish pond negative pressure |
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| CN (1) | CN212108413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116164290A (en) * | 2023-02-08 | 2023-05-26 | 中节能(象山)环保能源有限公司 | Multifunctional air supply system and process of garbage incineration boiler |
-
2019
- 2019-12-10 CN CN201922206879.6U patent/CN212108413U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116164290A (en) * | 2023-02-08 | 2023-05-26 | 中节能(象山)环保能源有限公司 | Multifunctional air supply system and process of garbage incineration boiler |
| CN116164290B (en) * | 2023-02-08 | 2023-08-11 | 中节能(象山)环保能源有限公司 | Multifunctional air supply system and process of garbage incineration boiler |
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Legal Events
| 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. |
|
| 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 Boiler Room Air Supply System for Garbage Incineration Power Plants with Negative Pressure in Garbage Pools Effective date of registration: 20231130 Granted publication date: 20201208 Pledgee: Shenzhen Energy Finance Co.,Ltd. Pledgor: Shenzhen Energy and environmental protection Co.,Ltd. Registration number: Y2023980068515 |
|
| 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: 20201208 Pledgee: Shenzhen Energy Finance Co.,Ltd. Pledgor: Shenzhen Energy and environmental protection Co.,Ltd. Registration number: Y2023980068515 |