CN201827870U - Boiler device for tail gas waste heat power generation system of tank type carbon calcinator - Google Patents
Boiler device for tail gas waste heat power generation system of tank type carbon calcinator Download PDFInfo
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- CN201827870U CN201827870U CN2010205050343U CN201020505034U CN201827870U CN 201827870 U CN201827870 U CN 201827870U CN 2010205050343 U CN2010205050343 U CN 2010205050343U CN 201020505034 U CN201020505034 U CN 201020505034U CN 201827870 U CN201827870 U CN 201827870U
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- waste heat
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The utility model discloses a boiler device for a tail gas waste heat power generation system of a tank type carbon calcinator. The boiler device comprises a furnace wall, a boiler barrel, a flue gas inlet, a radiation cooling chamber, a high-temperature section overheater, a surface type desuperheater, a low-temperature section overheater, an evaporator, an economizer, and a flue gas outlet, wherein the integral framework of the boiler device is surrounded by the furnace wall; the boiler barrel is arranged at the upper part of the boiler device; the flue gas inlet, the radiation cooling chamber, the high-temperature section overheater, the surface type desuperheater, and the low-temperature section overheater are arranged on the boiler device one the side the flue gas inlet is formed; the evaporator is arranged at the upper part of the heat exchange surface of the boiler device on the side the flue gas outlet is formed; the economizer is arranged at the lower part of the heat exchange surface of the boiler device on the side the flue gas outlet is formed; and the flue gas outlet is formed at the bottom of the heat exchange surface of the boiler device on the side the flue gas outlet is formed. The boiler device has the advantages that the internal heat exchange structure layout of the boiler is relatively complicated, so that the tail gas residual heat can be made full use of, further the heat utilization rate of flue gas is greatly improved; and the defect of high acid dew point corrosion is avoided and the dust stratification problem of the flue gas is solved.
Description
Technical field
The utility model relates to a kind of boiler plant of afterheat generating system, particularly a kind of boiler plant that is used for the afterheat generating system of pot type carbon calcining furnace exhaust gas.
Background technology
The waste heat boiler overwhelming majority in the pure low-temperature cogeneration field is middle cryogenic heat exchanger at present, because the heat exchange temperature is not high, thereby the boiler internal heat exchange structure is arranged simple relatively, promptly great majority adopt and mode such as to go out, enterprising side goes out under enterprising, the import flue gas is successively through discharging behind superheater, evaporimeter, the economizer, with be subjected to hot working fluid at the reverse heat convection of boiler internal, limited by heat source temperature, less employing superheater and Desuperheating device.
Pure low-temperature cogeneration technology is mainly used in cement industry at present, need not too much to consider the influence of acid dew piont corrosion to the waste heat boiler material in low-temperature zone when the characteristics of its smoke components have determined the design of residual heat boiler for exchanging heat face.Because this field tradition residual heat boiler for exchanging heat temperature is relatively low, the steam heat force parameter that is produced is also relatively low.When run into the smoke components complexity, when temperature is higher, traditional afterheat generating system boiler can not be adapted to electricity generation system.
Pot type carbon calciner exhaust temperature is between 850 ℃-1000 ℃, and import smoke components complexity (comprise about 7% carbon dioxide, about 8% oxygen, about 74.5% carbon monoxide and about 10.5% water, and sulfur content is 610mg/Nm
3), when utilizing this using waste heat from tail gas to generate electricity, it is higher relatively to produce the steam heat force parameter that is complementary therewith, this will complementation heat boiler heat-transfer surface during design, fully take into account the coupling adaptability of flue-gas temperature and boiler material, on structural configuration, take measures to guarantee to take all factors into consideration the design of waste heat boiler from aspects such as heat exchange efficiency and cost costs, characteristics in conjunction with the carbon calciner exhaust gas component, also need consider acid dew piont corrosion temperature height emphatically, problems such as flue gas dust stratification, in conjunction with these characteristics of carbon calcining furnace exhaust gas, the boiler of traditional afterheat generating system can not satisfy the requirement of using in pot type carbon calciner exhaust waste heat generation system.
The utility model content
The purpose of this utility model is to start with from smoke components and temperature parameter and carries out the structural design of waste heat boiler, the residual heat boiler for exchanging heat face adopts segmentation layout, reverse U shape structure, and elder generation enters evaporimeter after passing through radiant cooling room heat exchange, face formula desuperheat again, economizer carries out heat exchange.
The waste gas flow process adopts side to advance side to go out, and the flue gas that comes out from the calcining furnace afterbody at first discharges out of the furnace behind the two-stage evaporation device through entering exhanst gas outlet one side behind the fin panel casing wall radiation heat transfer of the radiant cooling room of boiler plant one side, high temperature superheater, convection-type desuperheater, the low temperature superheater heat-shift and three sections economizers.Two sections superheater intermediate arrangement face formula Desuperheating devices guarantee that the temperature that flue gas enters the low-temperature zone superheater is no more than 600 ℃.Radiant cooling room be subjected to the saturation water of hot working fluid from boiler drum bottom, reenter the drum drum through the steam water interface after the radiation heat transfer heat absorption and carry out carbonated drink separation.The heat transferring medium of face formula Desuperheating device feeds water from system, and after absorbing heat, heated hot water enters the drum drum and carries out carbonated drink separation.
Feed temperature is 104 ℃, and natural circulation mode, open-air vertical layout are adopted in feedwater.Because carbon element production line calciner emission amount is constantly to change, and during boiler design this is taken into full account, boiler duty changes when having provided the upper limit and lower limit, operational factor when satisfying maximum duty and performance.Install because boiler is all open-air, considered winter protection, measure such as rainproof during boiler design, drum and superheater position are provided with the sealing penthouse and the supporting supply of material, and consider load such as wind, snow, earthquake according to local meteorological data
According to SO in the smoke components parameter
2Content, dew-point temperature is about 190 ℃.In order to improve waste heat recovery efficient as far as possible and to reduce flue gas corrosion to steel under acid dew point, economizer adopts three sections layouts, and it is the 09CrCuSb steel that latter end economizer material adopts the ND steel.Adopt the mode of steam soot blowing, on drum and boiler body, reserve vapor interface in the manufacturing process respectively, and reserve ash hole.
To achieve these goals, the utility model discloses a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system, comprising: furnace wall, it is by surrounding the general frame that forms boiler plant; Drum, its be arranged on boiler plant top; Gas approach one side at boiler plant is provided with gas approach and radiant cooling room, is provided with high temperature section superheater, convection-type desuperheater and low-temperature zone superheater in the radiant cooling room; Evaporimeter, it is arranged on the top of boiler plant exhanst gas outlet one side; Economizer, it is arranged on the bottom of boiler plant exhanst gas outlet one side; Exhanst gas outlet, it is arranged on the bottom of boiler plant exhanst gas outlet one side.
Preferably, a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system described in the utility model, described evaporimeter is the two-stage evaporation device.
Preferably, a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system described in the utility model, described economizer are three sections economizers.
Preferably, a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system described in the utility model, the material of the latter end economizer of described three sections economizers adopts ND steel, that is: O9CrCuSb steel.
Preferably, a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system described in the utility model also is reserved with vapor interface and ash hole.
Preferably, a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system described in the utility model, described formula Desuperheating device is arranged so that the temperature of the flue gas that enters the low-temperature zone superheater is no more than 600 ℃.
Preferably, a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system described in the utility model, described radiant cooling room links to each other by pipeline with described drum.
Preferably, a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system described in the utility model, the described economizer of described convection-type desuperheater and boiler plant links to each other by pipeline.
The beneficial effects of the utility model are: the boiler plant of waste heat of the present utility model system adopts fume side to advance mode that side goes out to carry out heat exchange and finally discharge by exhanst gas outlet.The boiler internal heat exchange structure is arranged relative complex, thereby make the waste heat of the pot type carbon calcining boiler exhaust gas of exhaust temperature between 850 ℃-1000 ℃ be fully used, and this device can produce the steam of high heating power parameter, has improved the heat utilization efficiency of flue gas greatly.The particularity of the material of the economizer of three sections economizer ends makes that the high shortcoming of acid dew piont corrosion is avoided, and has also solved the problem of flue gas dust stratification simultaneously.
Description of drawings
Fig. 1 is the overall structure schematic diagram of an embodiment of the present utility model;
Fig. 2 is the sectional view of the overall structure schematic diagram of embodiment shown in Figure 1 along the A-A line.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, can implements according to this with reference to the specification literal to make those skilled in the art.
As shown in Figure 1, hot flue gas enters to boiler plant via gas approach 1, is at first forming the hot then flue gas of radiant cooling room 2 (arranging heat-exchanging tube bundle on three directions) between gas approach 1 and the uppermost drum 9 by radiant cooling room 2 and by fin panel casing wall radiation heat transfer.Wherein radiant cooling room 2 be subjected to the saturation water of hot working fluid from drum 9 bottoms, reenter drum 9 drums through the steam water interface after the radiation heat transfer heat absorption and carry out carbonated drink separation.Be provided with high temperature section superheater, convection-type desuperheater and low-temperature zone superheater in the radiant cooling room.Hot flue gas, just enters high temperature section superheater 3 and heats after uniform temperature through heat exchange, be heated to and to a certain degree enter convection-type desuperheater 4, and the heat transferring medium of convection-type desuperheater 4 feeds water from system.After absorbing heat, the drum that heated hot water enters drum 9 carries out carbonated drink separation.Before flue gas enters low-temperature zone superheater 5, be provided with convection-type desuperheater 4 and be no more than 600 ℃ to guarantee the temperature that flue gas is entering before the low-temperature zone superheater.Flue gas will make flue gas obtain exchange heat again through the low-temperature zone superheater, enter two-stage evaporation device 8 and three sections economizers 7 of being positioned at boiler plant exhanst gas outlet one side then, finally discharge outside the boiler plant by exhanst gas outlet 6.
In other words, a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system of the present utility model comprises: furnace wall, and it is by surrounding the general frame that forms boiler plant; Drum, its be arranged on boiler plant top; Gas approach one side at boiler plant is provided with gas approach and radiant cooling room, is provided with high temperature section superheater, convection-type desuperheater and low-temperature zone superheater in the wherein said radiant cooling room; Evaporimeter, it is arranged on the top of boiler plant exhanst gas outlet one side; Economizer, it is arranged on the bottom of boiler plant exhanst gas outlet one side; Exhanst gas outlet, it is arranged on the bottom of boiler plant exhanst gas outlet one side.
A kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system of the present utility model, described evaporimeter is the two-stage evaporation device.
A kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system of the present utility model, described economizer are three sections economizers.
A kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system described in the utility model, the material of the latter end economizer of described three sections economizers adopts ND steel, that is: O9CrCuSb steel.
A kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system of the present utility model also is reserved with vapor interface and ash hole.
A kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system of the present utility model, described formula Desuperheating device is arranged so that the temperature of the flue gas that enters the low-temperature zone superheater is no more than 600 ℃.
A kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system of the present utility model, described radiant cooling room links to each other by pipeline with described drum.
A kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system of the present utility model, the described economizer of described convection-type desuperheater and boiler plant links to each other by pipeline.
Although embodiment of the present utility model is open as above, but it is not restricted to listed utilization in specification and the embodiment, it can be applied to the various fields of the present utility model that are fit to fully, for those skilled in the art, can easily realize other modification, therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the utility model is not limited to specific details and illustrates here and describe.
Claims (7)
1. a boiler plant that is used for pot type carbon calciner exhaust waste heat generation system is characterized in that, comprising:
Furnace wall, it is by surrounding the general frame that forms boiler plant;
Drum, its be arranged on boiler plant top;
Gas approach one side at boiler plant is provided with gas approach and radiant cooling room, is provided with high temperature section superheater, convection-type desuperheater and low-temperature zone superheater in the wherein said radiant cooling room;
Evaporimeter, its be arranged on boiler plant exhanst gas outlet one side top;
Economizer, it is arranged on the bottom of boiler plant exhanst gas outlet one side;
Exhanst gas outlet, it is arranged on the bottom of boiler plant exhanst gas outlet one side.
2. a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system as claimed in claim 1 is characterized in that described evaporimeter is the two-stage evaporation device.
3. a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system as claimed in claim 1 is characterized in that, described economizer is three sections economizers.
4. a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system as claimed in claim 3 is characterized in that, the material of the latter end economizer of described three sections economizers adopts the ND steel.
5. a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system as claimed in claim 1 is characterized in that, also is reserved with vapor interface and ash hole.
6. a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system as claimed in claim 1 is characterized in that described radiant cooling room links to each other by pipeline with described drum.
7. a kind of boiler plant that is used for pot type carbon calciner exhaust waste heat generation system as claimed in claim 1 is characterized in that described convection-type desuperheater links to each other by pipeline with described economizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205050343U CN201827870U (en) | 2010-08-26 | 2010-08-26 | Boiler device for tail gas waste heat power generation system of tank type carbon calcinator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205050343U CN201827870U (en) | 2010-08-26 | 2010-08-26 | Boiler device for tail gas waste heat power generation system of tank type carbon calcinator |
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| Publication Number | Publication Date |
|---|---|
| CN201827870U true CN201827870U (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205050343U Expired - Lifetime CN201827870U (en) | 2010-08-26 | 2010-08-26 | Boiler device for tail gas waste heat power generation system of tank type carbon calcinator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307256A (en) * | 2018-11-01 | 2019-02-05 | 哈尔滨锅炉厂有限责任公司 | Supercritical carbon dioxide boiler gas side temperature reducing system and desuperheating method |
-
2010
- 2010-08-26 CN CN2010205050343U patent/CN201827870U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307256A (en) * | 2018-11-01 | 2019-02-05 | 哈尔滨锅炉厂有限责任公司 | Supercritical carbon dioxide boiler gas side temperature reducing system and desuperheating method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Shi Xia Document name: Notification of Passing Examination on Formalities |
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| DD01 | Delivery of document by public notice | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |
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| CX01 | Expiry of patent term |