CN209763090U - Anti-corrosion waste incineration boiler superheater system - Google Patents
Anti-corrosion waste incineration boiler superheater system Download PDFInfo
- Publication number
- CN209763090U CN209763090U CN201920402683.1U CN201920402683U CN209763090U CN 209763090 U CN209763090 U CN 209763090U CN 201920402683 U CN201920402683 U CN 201920402683U CN 209763090 U CN209763090 U CN 209763090U
- Authority
- CN
- China
- Prior art keywords
- corrosion
- superheater
- air
- temperature
- steam
- 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
Landscapes
- Air Supply (AREA)
Abstract
the utility model provides an anti-corrosion waste incineration boiler superheater system, which belongs to the field of household waste incineration power generation boilers and comprises an anti-corrosion air preheater, a first superheater and a second superheater; the flue is internally provided with a high-temperature area with the flue gas temperature higher than 600 ℃ close to an inlet, the anti-corrosion air preheater is arranged in the high-temperature area, one end of the anti-corrosion air preheater is connected with the low-temperature air supply pipe, and the other end of the anti-corrosion air preheater is connected with the high-temperature air output pipe; one side of the anti-corrosion air preheater, which is far away from the inlet, forms a low-temperature area with the temperature lower than 600 ℃, the first superheater is arranged in the low-temperature area, and the first superheater comprises a steam inlet and a steam outlet; but be provided with heat transfer's air passage and steam channel in the second over heater, the steam outlet intercommunication steam channel of first over heater, high temperature air output tube intercommunication air passage, steam channel exhaust steam is used for the electricity generation. The problem of present high parameter domestic waste boiler superheater corruption is solved.
Description
Technical Field
The utility model relates to a domestic waste burns power generation boiler field particularly, relates to an anticorrosive msw incineration boiler over heater system.
Background
The flue gas of the household garbage incineration power generation boiler contains a large amount of corrosive acidic air, and can generate serious high-temperature corrosion phenomena on a boiler superheater and the like in a high-temperature state, so that the steam pressure temperature parameter of the superheater outlet of the conventional household garbage incineration power generation boiler in China is lower (485 ℃ and below), and the overall power generation efficiency of the system is lower.
At present, the superheater of the domestic conventional domestic garbage incineration power generation boiler generally adopts materials such as surfacing welding or high-temperature corrosion-resistant boiler steel pipes for corrosion resistance, the corrosion resistance of the materials is a critical point of corrosion resistance at the flue gas temperature of 600 ℃ and the steam temperature of 485 ℃, and when the steam temperature or the flue gas temperature is further increased, the corrosion resistance of the materials is rapidly deteriorated, so that the economic corrosion resistance of the conventional domestic garbage incineration power generation boiler is limited by the high-temperature superheater material, and the further increase of the superheater outlet steam temperature parameter (above 485 ℃) of the boiler is restricted.
SUMMERY OF THE UTILITY MODEL
the utility model provides a waste incineration boiler over heater system that anticorrosives aims at solving the above-mentioned problem that the waste incineration boiler over heater system that anticorrosives among the prior art exists.
The utility model discloses a realize like this:
An anti-corrosion waste incineration boiler superheater system is used for absorbing heat of corrosive flue gas with acid gas in a flue and bringing the heat into a boiler for utilization, and comprises an anti-corrosion air preheater, a first superheater and a second superheater;
The flue is internally provided with a high-temperature area with the flue gas temperature higher than 600 ℃ close to an inlet, the anti-corrosion air preheater is arranged in the high-temperature area, one end of the anti-corrosion air preheater is connected with a low-temperature air supply pipe, and the other end of the anti-corrosion air preheater is connected with a high-temperature air output pipe;
One side of the anti-corrosion air preheater, which is far away from the inlet, forms a low-temperature region with the temperature lower than 600 ℃, the first superheater is arranged in the low-temperature region, and the first superheater comprises a steam inlet and a steam outlet;
An air channel and a steam channel capable of exchanging heat are arranged in the second superheater, the steam outlet of the first superheater is communicated with the steam channel, the high-temperature air output pipe is communicated with the air channel, and steam discharged by the steam channel is used for generating electricity.
In an embodiment of the present invention, the steam temperature output by the steam channel of the second superheater is higher than 485 ℃.
in an embodiment of the present invention, the outlet of the air channel is connected to the boiler furnace.
In an embodiment of the present invention, the outlet of the air channel and the low-temperature air bleed pipe are connected in parallel to merge into the main air supply pipe, and the main air supply pipe is communicated with the boiler furnace.
The utility model discloses an in an embodiment, air feed main's exit is connected primary air pipe and secondary tuber pipe, primary air pipe intercommunication boiler furnace's bottom, the secondary tuber pipe intercommunication boiler furnace's lateral part.
In an embodiment of the present invention, a first air mixing chamber is disposed at the inlet of the steam channel.
In an embodiment of the present invention, the outlet of the steam channel is provided with a second air mixing chamber.
In an embodiment of the present invention, the anti-corrosion air preheater is a ceramic air preheater.
The utility model has the advantages that: through the utility model provides an anticorrosive msw incineration boiler over heater system, can be with the direct heat transfer flow of high temperature corrosivity flue gas and the boiler over heater high temperature steam of conventional msw incineration boiler, change into high temperature corrosivity flue gas and the direct heat transfer of low temperature air and produce high temperature air, then high temperature air again with the combination heat transfer flow of the direct heat transfer of boiler over heater high temperature steam, just avoided high temperature steam metal heat exchanger and the acid flue gas direct contact heat transfer of high temperature corrosivity in the heat transfer flow like this, thereby fundamentally has solved the problem that present high parameter msw incineration boiler over heater corrodes.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a system diagram of an anti-corrosion waste incineration boiler superheater system according to an embodiment of the present invention.
Icon: 001-corrosion resistant waste incineration boiler superheater system; 100-corrosion-resistant air preheater; 200-a first superheater; 300-a second superheater; 101-a cryogenic air supply pipe; 103-high temperature air output pipe; 201-a steam inlet; 203-a steam outlet; 310-air channel; 330-steam channel; 401-low temperature air bleed air duct; 410-a gas supply main; 403-primary air pipe; 405-a secondary air duct; 500-boiler furnace.
Detailed Description
to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
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; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Examples
Referring to fig. 1, the corrosion-resistant waste incineration boiler superheater system 001 is used for absorbing heat of corrosive flue gas with acid gas in a flue and bringing the heat into a boiler for utilization, and includes a corrosion-resistant air preheater 100, a first superheater 200 and a second superheater 300;
The flue is internally provided with a high-temperature area with the flue gas temperature higher than 600 ℃ close to an inlet, the anti-corrosion air preheater 100 is arranged in the high-temperature area, one end of the anti-corrosion air preheater 100 is connected with a low-temperature air supply pipe 101, and the other end of the anti-corrosion air preheater is connected with a high-temperature air output pipe 103. In this embodiment, the anti-corrosion air preheater 100 is a ceramic air preheater with heat exchange tubes made of silicon carbide engineering ceramics with high temperature resistance, corrosion resistance, thermal shock resistance and good heat conductivity. In other embodiments, other non-metallic materials can be used as long as they have high temperature resistance, corrosion resistance, thermal shock resistance and good heat conductivity in the corrosive flue gas at 600 ℃.
The temperature of the corrosive flue gas is rapidly reduced through the heat absorption of the anti-corrosion air preheater 100, so that a low-temperature area with the temperature lower than 600 ℃ is formed on one side of the anti-corrosion air preheater 100 away from the inlet, the first superheater 200 is arranged in the low-temperature area, and the first superheater 200 comprises a steam inlet 201 and a steam outlet 203;
An air passage 310 and a steam passage 330 which can exchange heat are arranged in the second superheater 300, the steam outlet 203 of the first superheater 200 is communicated with the steam passage 330, and the high-temperature air output pipe 103 is communicated with the air passage 310. The steam passage 330 exchanges heat with the air passage 310, and the heat of the high-temperature air output by the high-temperature air output pipe 103 is transferred to the relatively low-temperature steam output by the steam outlet 203 of the first superheater 200. In second over heater 300, the temperature of steam further promotes, can reach more than 485 ℃, generates electricity in carrying the steam turbine with the steam of high temperature, can improve energy utilization.
By providing a corrosion-resistant air preheater, the temperature of the corrosive flue gas can be reduced in advance, thereby preventing the first superheater 200 from being corroded by the corrosive flue gas. And the heat taken away by reducing the temperature of the corrosive flue gas is transferred to the steam in the subsequent second superheater 300 in the form of heated air, so that the temperature of the steam can be raised to above 485 ℃, and particularly can reach 540 ℃ or higher. Therefore, the heat of the corrosive flue gas can be fully utilized, and the heat is further provided for a steam turbine to generate power.
in this embodiment, the temperature of the steam output from the steam outlet 203 is lower than 485 ℃, and the corrosion probability can be further reduced by controlling the temperature of the steam in the first superheater 200, so as to improve the service life of the first superheater 200.
In this embodiment, the outlet of the air channel 310 is connected in parallel with the low temperature air bleed air pipe 401 and merges into the air supply header 410, and the air supply header 410 communicates with the boiler furnace 500. The outlet of the air supply main pipe 410 is connected with a primary air pipe 403 and a secondary air pipe 405, the primary air pipe 403 is communicated with the bottom of the boiler furnace 500, and the secondary air pipe 405 is communicated with the side of the boiler furnace 500.
The outlet of the air channel 310 is connected with the low-temperature air bleed pipe 401 in parallel, so that the air with two temperatures can be mixed proportionally, and the mixed air temperature is more suitable for being provided for the combustion of the boiler. The mixed primary air is led to the bottom of the hearth through the primary air pipe 403 to provide oxygen for the combustion of the domestic garbage. The mixed secondary air is led to the side part or the top part of the hearth through a secondary air pipe 405, so that the effects of stirring the gas in the furnace, strengthening the residence time and the stroke of the fuel in the furnace and the like are realized.
In order to improve the heat exchange efficiency in the second superheater 300 and improve the stability of power generation, a first gas mixing chamber is provided at the inlet of the steam channel 330, and a second gas mixing chamber is provided at the outlet of the steam channel 330.
It should be noted that, this application provides a waste incineration boiler superheater system 001 of anticorrosion, through high temperature corrosive flue gas and the direct heat transfer of low temperature air production high temperature air, then the high temperature air heats steam with the combination heat transfer flow of the direct heat transfer of boiler superheater high temperature steam, in other embodiments, directly replace the superheater in this system for the reheater or increase the reheater, belong to the direct replacement or the increase of the conventional means in this field, should be in the middle of the protection scope of this application.
Through the utility model provides an anticorrosive msw incineration boiler over heater system 001, can be with the direct heat transfer flow of high temperature corrosivity flue gas and the boiler over heater high temperature steam of conventional msw incineration boiler, change into high temperature corrosivity flue gas and the direct heat transfer of low temperature air and produce high temperature air, then high temperature air again with the combination heat transfer flow of the direct heat transfer of boiler over heater high temperature steam, just avoided high temperature steam metal heat exchanger and the acid flue gas direct contact heat transfer of high temperature corrosivity in the heat transfer flow like this, thereby fundamentally has solved the problem that present high parameter msw incineration boiler over heater corrodes.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An anti-corrosion waste incineration boiler superheater system is used for absorbing heat of corrosive flue gas with acid gas in a flue and bringing the heat into a boiler for utilization, and is characterized by comprising an anti-corrosion air preheater, a first superheater and a second superheater;
The flue is internally provided with a high-temperature area with the flue gas temperature higher than 600 ℃ close to an inlet, the anti-corrosion air preheater is arranged in the high-temperature area, one end of the anti-corrosion air preheater is connected with a low-temperature air supply pipe, and the other end of the anti-corrosion air preheater is connected with a high-temperature air output pipe;
One side of the anti-corrosion air preheater, which is far away from the inlet, forms a low-temperature region with the temperature lower than 600 ℃, the first superheater is arranged in the low-temperature region, and the first superheater comprises a steam inlet and a steam outlet;
An air channel and a steam channel capable of exchanging heat are arranged in the second superheater, the steam outlet of the first superheater is communicated with the steam channel, the high-temperature air output pipe is communicated with the air channel, and steam discharged from the steam channel of the second superheater is used for generating electricity.
2. The corrosion-resistant waste incineration boiler superheater system of claim 1, wherein the steam channel of the second superheater outputs steam at a temperature greater than 485 ℃.
3. The corrosion-resistant msw incineration boiler superheater system of claim 1, wherein an outlet of the air channel is connected to a boiler furnace.
4. The corrosion-resistant waste-incineration boiler superheater system according to claim 3, wherein the outlet of the air channel is connected in parallel with a low-temperature air bleed conduit and opens into a main air supply conduit, which communicates with the boiler furnace.
5. the corrosion-resistant superheater system for waste incineration boilers of claim 4, wherein an outlet of the gas supply main is connected with a primary air duct and a secondary air duct, the primary air duct is communicated with the bottom of the boiler furnace, and the secondary air duct is communicated with the side of the boiler furnace.
6. The corrosion-resistant msw incineration boiler superheater system of claim 1, wherein a first plenum is disposed on an inlet of the steam channel.
7. The corrosion-resistant waste-incineration boiler superheater system according to claim 1, wherein an outlet of the steam channel is provided with a second plenum chamber.
8. The corrosion-resistant waste-incineration boiler superheater system of claim 1, wherein the corrosion-resistant air preheater is a ceramic air preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920402683.1U CN209763090U (en) | 2019-03-27 | 2019-03-27 | Anti-corrosion waste incineration boiler superheater system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920402683.1U CN209763090U (en) | 2019-03-27 | 2019-03-27 | Anti-corrosion waste incineration boiler superheater system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209763090U true CN209763090U (en) | 2019-12-10 |
Family
ID=68756689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920402683.1U Active CN209763090U (en) | 2019-03-27 | 2019-03-27 | Anti-corrosion waste incineration boiler superheater system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209763090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812821A (en) * | 2019-03-27 | 2019-05-28 | 四川川锅锅炉有限责任公司 | A kind of etch-proof garbage burning boiler superheater system |
| CN113464943A (en) * | 2021-06-01 | 2021-10-01 | 光大环保技术研究院（深圳）有限公司 | High-parameter thermodynamic system suitable for waste incineration and operation method thereof |
-
2019
- 2019-03-27 CN CN201920402683.1U patent/CN209763090U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812821A (en) * | 2019-03-27 | 2019-05-28 | 四川川锅锅炉有限责任公司 | A kind of etch-proof garbage burning boiler superheater system |
| CN113464943A (en) * | 2021-06-01 | 2021-10-01 | 光大环保技术研究院（深圳）有限公司 | High-parameter thermodynamic system suitable for waste incineration and operation method thereof |
| CN113464943B (en) * | 2021-06-01 | 2023-11-14 | 光大环保技术研究院（深圳）有限公司 | High-parameter thermodynamic system suitable for garbage incineration and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201103894Y (en) | Saturated steam heating stove | |
| CN209763090U (en) | Anti-corrosion waste incineration boiler superheater system | |
| CN203068991U (en) | Combined waste heat utilization heat pipe waste heat boiler | |
| CN110500609B (en) | Boiler waste heat utilization system | |
| CN211119280U (en) | Boiler thermodynamic system | |
| CN214120066U (en) | Detachable waste incinerator water-cooling furnace wall | |
| CN202792536U (en) | Water pipe type condensation hot water boiler | |
| CN210107340U (en) | Anticorrosive type exhaust-heat boiler system | |
| CN113983443A (en) | Gas boiler waste heat recovery utilizes system based on high temperature steam heat pump | |
| CN206973523U (en) | A kind of gasification of biomass coupling coal fired power generation gasification gas utilizes system | |
| CN202770273U (en) | Heat exchanger | |
| CN202902241U (en) | Zinc coated thermal treatment furnace heat recovery boiler | |
| CN102322624A (en) | System utilizing organic heat carrier furnace flue gas waste heat to produce low-pressure steam | |
| CN202229154U (en) | System for using organic heat carrier boiler smoke waste heat to generate low voltage steam | |
| CN202501757U (en) | Yellow phosphorus tail gas utilizing device | |
| CN215491205U (en) | Energy-saving steam air preheater | |
| CN203131784U (en) | Exhaust-heat boiler with bearing air preheater for carbon 4 dehydrogenation | |
| CN205245810U (en) | Burning furnace smoke waste heat's device is forged in recovery | |
| CN109812821A (en) | A kind of etch-proof garbage burning boiler superheater system | |
| CN212930069U (en) | Two-phase flow phase-change heat radiator | |
| CN204853427U (en) | Boiler thermodynamic system | |
| JP3241996U (en) | Thermal power plant flue gas heat recovery system | |
| CN211902819U (en) | Boiler with reheating municipal refuse and sludge for combustion | |
| CN212204593U (en) | Flue gas waste heat utilization device of gas boiler | |
| CN102183153A (en) | Tail gas heat exchanger for salt-melting furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |