CN209745018U - Vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system - Google Patents
Vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system Download PDFInfo
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- CN209745018U CN209745018U CN201822264781.1U CN201822264781U CN209745018U CN 209745018 U CN209745018 U CN 209745018U CN 201822264781 U CN201822264781 U CN 201822264781U CN 209745018 U CN209745018 U CN 209745018U
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- China
- Prior art keywords
- waste heat
- sintering
- dust remover
- air outlet
- outlet chamber
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- 238000005245 sintering Methods 0.000 title claims abstract description 58
- 239000002918 waste heat Substances 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 35
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000428 dust Substances 0.000 claims abstract description 29
- 239000003546 flue gas Substances 0.000 claims abstract description 29
- 238000010248 power generation Methods 0.000 claims abstract description 21
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 6
- 230000023556 desulfurization Effects 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 10
- FYIRUPZTYPILDH-UHFFFAOYSA-N 1,1,1,2,3,3-hexafluoropropane Chemical compound FC(F)C(F)C(F)(F)F FYIRUPZTYPILDH-UHFFFAOYSA-N 0.000 claims description 3
- -1 R236fa Chemical compound 0.000 claims description 3
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
the utility model discloses a vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system, which comprises a vertical spiral cross flow cooling device body of a sintering ore, wherein the vertical spiral cross flow cooling device body is provided with a high-temperature air outlet chamber, a medium-temperature air outlet chamber, a low-temperature air outlet chamber and an air inlet chamber; the middle-temperature air outlet chamber is connected with the primary dust remover, then is combined with the outlet of the sintering flue gas fan and then is connected with the evaporator, and the desulfurization and denitrification device is sequentially connected with the chimney through a flue gas pipeline; the evaporator is connected with the first power generation device; the high-temperature air outlet chamber is sequentially connected with the primary dust remover, the waste heat boiler, the secondary dust remover, the cold air inlet valve, the circulating fan, the blow-off valve and the air inlet chamber through a cooling air pipeline; the waste heat boiler is connected with the second generator device; the low-temperature air outlet chamber is connected with the outlets of the primary dust remover and the secondary dust remover in turn through cooling air pipelines. The high-temperature waste gas, the medium-temperature waste gas and the low-temperature waste gas recovered by the vertical sinter cooling device are utilized in a grading manner by introducing an organic Rankine cycle power generation system.
Description
Technical Field
The utility model relates to a high temperature granule waste heat recovery power generation facility and technical field more exactly relate to a vertical sintering waste heat drive steam and organic rankine cycle parallel system.
background
The high-efficiency recovery and conversion utilization of waste heat and residual pressure resources in the steel industry are one of the main directions of energy conservation and consumption reduction of enterprises. For the second or third sintering process of the energy-consuming place in the steel industry, the sintering waste heat mainly comprises two parts: the sensible heat of the sintering ore at the tail part of the sintering machine is 800-950 ℃, and accounts for 44.5 percent of the energy consumption of the sintering process; the sensible heat of the flue gas discharged by the sintering machine is 150-200 ℃ at average temperature, and accounts for 23.6% of the energy consumption of the sintering process. Comprehensive analysis of waste heat quality and quantity shows that the sensible heat of sintering ore accounts for 65% and the sensible heat of sintering flue gas accounts for about 35%. And recovering the sensible heat of the sintering ore by using a vertical (spiral) cross flow or a circular cooler to recover the waste heat so as to obtain the cooling waste gas. The heat of the waste flue gas with the temperature of the cooling waste gas and the sintering flue gas between 300 ℃ and 450 ℃ accounts for 30-40% of the total residual heat, and the heat of the waste flue gas lower than 300 ℃ accounts for more than 60% of the total residual heat.
the average temperature of the flue gas of the sintering machine is generally not more than 150 ℃ but the flow rate is large; the temperature of the flue gas discharged by the air box at the tail part of the sintering machine is 300-400 ℃, and can reach 450 ℃ at most; the temperature of hot waste gas of a sintering cooling device is different with different cooling parts and is changed between 70 ℃ and 520 ℃, and the prior art only recycles the hot waste gas above 250 ℃.
although most of sintering waste heat belongs to the category of medium-high temperature waste heat, a considerable amount of low-temperature waste heat resources are generated, and effective utilization of the low-temperature waste heat resources below 250 ℃ is one of the main measures for further improving the utilization rate of the sintering waste heat.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a vertical sintering waste heat drive steam and organic rankine cycle parallel system, through introducing organic rankine cycle power generation system, carry out hierarchical utilization to high temperature waste gas, medium temperature waste gas and the low temperature waste gas that vertical cooling device of sintering deposit retrieved.
The technical solution of the utility model is to provide a vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system, which comprises a vertical sintering ore spiral cross flow cooling device body, wherein the vertical sintering ore spiral cross flow cooling device body comprises a high-temperature air outlet chamber, a medium-temperature air outlet chamber, a low-temperature air outlet chamber and an air inlet chamber;
the middle-temperature air outlet chamber is connected with the primary dust remover, then is combined with the outlet of the sintering flue gas fan and then is connected with the evaporator, and the desulfurization and denitrification device is sequentially connected with the chimney through a flue gas pipeline; the evaporator is connected with the first power generation device;
The high-temperature air outlet chamber is sequentially connected with the primary dust remover, the waste heat boiler, the secondary dust remover, the cold air inlet valve, the circulating fan, the blow-off valve and the air inlet chamber through a cooling air pipeline; the waste heat boiler is connected with the second generator device;
The low-temperature air outlet chamber is connected with the outlets of the primary dust remover and the secondary dust remover in sequence through cooling air pipelines;
The sintering machine is provided with an air box, and the air box, the main flue, the flue gas dust remover and the sintering flue gas fan are sequentially connected through a sintering flue gas pipeline.
After the structure more than adopting, the utility model discloses a vertical sintering waste heat drive steam and organic rankine cycle parallel system compares with prior art, has following advantage:
Aiming at the current situation that low-temperature waste heat in a vertical waste heat recovery power generation system cannot be used for power generation, the high-temperature waste gas, the medium-temperature waste gas and the low-temperature waste gas recovered by a vertical sintered ore cooling device are utilized in a grading manner by introducing an organic Rankine cycle power generation system, wherein the high-temperature waste gas is applied to a water vapor Rankine cycle power generation system, the medium-temperature waste gas is applied to the organic Rankine cycle power generation system, and the low-temperature waste gas is used for heating cooled gas; and the waste heat resource of the sintering flue gas is combined with the medium-temperature waste gas of the vertical cooling device and is used for an organic Rankine cycle power generation system. The high, medium and low temperature waste heat resources in the sintering process are applied to power generation to the maximum extent, the waste heat power generation power is provided to the maximum extent, the self-power supply quantity of the iron and steel enterprises is increased, the energy conservation and consumption reduction are realized, and the economic benefit of the iron and steel enterprises is improved.
As an improvement, the first power generation device comprises an evaporator, an expander, a first condenser, a liquid storage tank and a circulating booster pump; the evaporator, the expander, the first condenser, the liquid storage tank, the circulating booster pump and the evaporator are sequentially connected through an organic working medium pipeline, and the tail end of the expander is connected with the first generator.
As an improvement, the second power generation system comprises a condensing steam turbine, a second condenser, a first circulating water pump, a deaerator and a second circulating water pump; the waste heat boiler, the condensing steam turbine, the second condenser, the first circulating water pump, the deaerator, the second circulating water pump and the waste heat boiler are sequentially connected through a water and steam pipeline, the deaerator is connected with the intermediate stage of the condensing steam turbine, and the tail end of the condensing steam turbine is connected with the second generator.
As an improvement, the working medium in the organic working medium pipeline is one or more of R600, R600a, R245fa, R236fa, R236ea, R601a, RC318 and R227 ea.
Drawings
FIG. 1 is a schematic structural diagram of a vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system;
Shown in the figure: the vertical spiral cross-flow cooling device comprises a sintered ore vertical spiral cross-flow cooling device body 1, a sintering machine 2, an air box 3, a main flue 4, a flue gas dust remover 5, a sintered flue gas fan 6, an evaporator 7, a circulating booster pump 8, a desulfurization and denitrification device 9, an expansion machine 10, a first generator 11, a chimney 12, a first condenser 13, a liquid storage tank 14, a second generator 15, a condensing steam turbine 16, a second condenser 17, a first circulating water pump 18, a deaerator 19, a second circulating water pump 20, a waste heat boiler 21, a secondary dust remover 22, a cold air inlet valve 23, a circulating fan 24, a blow-off valve 25, a primary dust remover 26, an air inlet chamber 27, a low-temperature air outlet chamber 28, a medium-temperature air outlet chamber 29 and a high-temperature.
Detailed Description
For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification.
in the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.
It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "including," and/or "containing," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Further, when a statement such as "… at least one" appears after the list of listed features, the entire listed feature is modified rather than modifying individual elements in the list.
The utility model discloses a vertical sintering waste heat drive steam and organic Rankine cycle parallel system, including vertical spiral cross flow cooling device body 1 of sintering deposit, vertical spiral cross flow cooling device body 1 of sintering deposit include that high temperature goes out plenum 30, medium temperature goes out plenum 29, low temperature goes out plenum 28 and air inlet chamber 27;
the middle temperature air outlet chamber 29 is connected with the primary dust remover 26, then is combined with the outlet of the sintering flue gas fan 6 and then is connected with the evaporator 7, and the desulfurization and denitrification device 8 and the chimney 12 are sequentially connected through a flue gas pipeline; the evaporator 7 is connected with a first power generation device; the first power generation device comprises an evaporator 7, an expander 10, a first condenser 13, a liquid storage tank 14 and a circulating booster pump 8; the evaporator 7, the expander 10, the first condenser 13, the liquid storage tank 14, the circulating booster pump 8 and the evaporator 7 are sequentially connected through an organic working medium pipeline, and the tail end of the expander 10 is connected with the first generator 11. The organic working medium pipeline is characterized in that the working medium is one or more of R600, R600a, R245fa, R236fa, R236ea, R601a, RC318 and R227ea, and the organic working medium is an organic substance which has zero Ozone Depletion Potential (ODP), low Global Warming Potential (GWP) and is friendly to the environment.
The high-temperature air outlet chamber 30 is sequentially connected with the primary dust remover 26, the waste heat boiler 21, the secondary dust remover 22, the cold air inlet valve 23, the circulating fan 24, the blow-off valve 25 and the air inlet chamber 27 through cooling air pipelines; the waste heat boiler 21 is connected with a second generator device; the second power generation system comprises a condensing steam turbine 16, a second condenser 17, a first circulating water pump 18, a deaerator 19 and a second circulating water pump 20; the waste heat boiler 21, the condensing steam turbine 16, the second condenser 17, the first circulating water pump 18, the deaerator 19, the second circulating water pump 20 and the waste heat boiler 21 are sequentially connected through water and steam pipelines, the deaerator 19 is connected to the middle stage of the condensing steam turbine 16, and the tail end of the condensing steam turbine 16 is connected with the second generator.
The low-temperature air outlet chamber 28 is connected with the outlets of the primary dust remover 26 and the secondary dust remover 22 in turn through cooling air pipelines;
The sintering machine 2 is provided with an air box 3, and the air box 3, a main flue 4, a flue gas dust remover 5 and a sintering flue gas fan 6 are sequentially connected through a sintering flue gas pipeline.
The utility model discloses a vertical sintering waste heat drive steam and organic rankine cycle parallel system's operating method includes following step:
S1 and 700-850 ℃ high-temperature sintering ore is added into the vertical spiral cross-flow cooling device 1 for sintering ore at intervals from the top, and is changed into 160-180 ℃ cold sintering ore after exchanging heat with 100-120 ℃ cooling gas entering from an air inlet pipeline and is discharged from the bottom of the device;
S2, dedusting the heated high-temperature waste gas at 400-550 ℃ from the high-temperature air outlet chamber 30 through the primary dust remover 26, introducing the waste gas into the waste heat boiler 21, feeding water into the waste heat boiler, mixing the heated high-temperature waste gas with the low-temperature waste gas at 150 ℃ and 250 ℃ which is dedusted by the primary dust remover 26 and is discharged from the low-temperature air outlet chamber 28 of the vertical spiral cross-flow cooling device body 1 of the sintered ore, and blowing the mixed gas into the vertical spiral cross-flow cooling device body 1 of the sintered ore through the air inlet chamber 27 by the circulating fan 24 to complete circulation; a cold air inlet valve 23 is arranged between the secondary dust remover 22 and the circulating fan 24, the cold air inlet valve can supplement the amount of cooling air after being opened, a bleeding valve is arranged between the circulating fan 24 and the air inlet chamber 27, and the cooling air can be bled after being opened, so that the temperature of the waste gas cooled after being heated by the sintering vertical spiral cross-flow cooling device is ensured;
S3, after the feed water in the waste heat boiler 21 is heated, the feed water becomes high-temperature high-pressure superheated steam, the condensing steam turbine 16 is pushed to do work, the condensing steam turbine 16 drives the second generator 15 to generate electricity, the exhaust steam discharged by the condensing steam turbine 16 after doing work is cooled in the condenser 17, the first circulating water pump 18 provides power to enter the deaerator 19 and is heated by the steam extracted from the middle stage of the condensing steam turbine 16, and the deaerated liquid water provides power to enter the waste heat boiler 21 through the second circulating water pump 20 to serve as the feed water;
s4, discharging medium-temperature waste gas generated by the vertical spiral cross-flow cooling device body 1 of the sinter from a medium-temperature air outlet chamber 29, dedusting the waste gas by a primary deduster 26, mixing the waste gas with sintering flue gas at 200 ℃ generated by a sintering machine 2, heating the organic working medium in an evaporator 7, cooling the organic working medium, passing through a desulfurization and denitrification device 9, and discharging the cooled organic working medium from a chimney 12; the organic working medium of 100-plus-200 ℃ which is heated and evaporated into gas is pushed to the first generator 11 through the expander 10 to generate power, after the organic working medium expands in the expander 10 to do work, the exhaust steam is condensed by the condenser 13 to become liquid organic working medium, enters the liquid storage tank 14, and then enters the evaporator 7 to exchange heat with the flue gas by the power provided by the circulating pressure pump 8.
Claims (4)
1. the utility model provides a vertical sintering waste heat drive steam and organic rankine cycle parallel system which characterized in that: the vertical spiral cross-flow cooling device comprises a vertical spiral cross-flow cooling device body for the sintered ore, wherein the vertical spiral cross-flow cooling device body for the sintered ore comprises a high-temperature air outlet chamber, a medium-temperature air outlet chamber, a low-temperature air outlet chamber and an air inlet chamber;
The middle-temperature air outlet chamber is connected with the primary dust remover, then is combined with the outlet of the sintering flue gas fan and then is connected with the evaporator, and the desulfurization and denitrification device is sequentially connected with the chimney through a flue gas pipeline; the evaporator is connected with the first power generation device;
the high-temperature air outlet chamber is sequentially connected with the primary dust remover, the waste heat boiler, the secondary dust remover, the cold air inlet valve, the circulating fan, the blow-off valve and the air inlet chamber through a cooling air pipeline; the waste heat boiler is connected with the second generator device;
The low-temperature air outlet chamber is connected with the outlets of the primary dust remover and the secondary dust remover in sequence through cooling air pipelines;
The sintering machine is provided with an air box, and the air box, the main flue, the flue gas dust remover and the sintering flue gas fan are sequentially connected through a sintering flue gas pipeline.
2. the vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system according to claim 1, wherein: the first power generation device comprises an evaporator, an expander, a first condenser, a liquid storage tank and a circulating booster pump; the evaporator, the expander, the first condenser, the liquid storage tank, the circulating booster pump and the evaporator are sequentially connected through an organic working medium pipeline, and the tail end of the expander is connected with the first generator.
3. the vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system according to claim 1, wherein: the second power generation system comprises a condensing steam turbine, a second condenser, a first circulating water pump, a deaerator and a second circulating water pump; the waste heat boiler, the condensing steam turbine, the second condenser, the first circulating water pump, the deaerator, the second circulating water pump and the waste heat boiler are sequentially connected through a water and steam pipeline, the deaerator is connected with the intermediate stage of the condensing steam turbine, and the tail end of the condensing steam turbine is connected with the second generator.
4. the vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system according to claim 2, wherein: the working medium in the organic working medium pipeline is one or more of R600, R600a, R245fa, R236fa, R236ea, R601a, RC318 and R227 ea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822264781.1U CN209745018U (en) | 2018-12-31 | 2018-12-31 | Vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822264781.1U CN209745018U (en) | 2018-12-31 | 2018-12-31 | Vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system |
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| Publication Number | Publication Date |
|---|---|
| CN209745018U true CN209745018U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822264781.1U Withdrawn - After Issue CN209745018U (en) | 2018-12-31 | 2018-12-31 | Vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system |
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| Country | Link |
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| CN (1) | CN209745018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668445A (en) * | 2018-12-31 | 2019-04-23 | 浙能资本控股有限公司 | Vertical sintering waste heat driving water vapour and Organic Rankine Cycle parallel system |
-
2018
- 2018-12-31 CN CN201822264781.1U patent/CN209745018U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668445A (en) * | 2018-12-31 | 2019-04-23 | 浙能资本控股有限公司 | Vertical sintering waste heat driving water vapour and Organic Rankine Cycle parallel system |
| CN109668445B (en) * | 2018-12-31 | 2023-11-24 | 浙能资本控股有限公司 | Vertical sintering waste heat driven water vapor and organic Rankine cycle parallel system |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191206 Effective date of abandoning: 20231124 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191206 Effective date of abandoning: 20231124 |