CN104180675B - Heating furnace residual heat integrative utilizes electricity generation system - Google Patents
Heating furnace residual heat integrative utilizes electricity generation system Download PDFInfo
- Publication number
- CN104180675B CN104180675B CN201410408697.6A CN201410408697A CN104180675B CN 104180675 B CN104180675 B CN 104180675B CN 201410408697 A CN201410408697 A CN 201410408697A CN 104180675 B CN104180675 B CN 104180675B
- Authority
- CN
- China
- Prior art keywords
- steam
- low
- pressure
- superheated steam
- pressure superheated
- 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
Classifications
-
- 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
- Y02P10/25—Process efficiency
-
- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention discloses a kind of heating furnace residual heat integrative and utilizes electricity generation system, mainly for the cooling water beam waste heat in comprehensive utilization heating furnace and the fume afterheat in back-end ductwork generate electricity.The present invention at least comprises high pressure superheated steam and produces mechanism, low-pressure superheated steam generation mechanism, filling condensing turbine and generator, high pressure superheated steam produces the steam (vapor) outlet of mechanism and is connected with the main steam ports of filling condensing turbine, and the steam (vapor) outlet that low-pressure superheated steam produces mechanism is connected with the filling mouth of filling condensing turbine.The high pressure superheated steam of generation and low-pressure superheated steam are entered main steam ports respectively in the present invention and filling mouth generates electricity, cascaded utilization of energy, improves the thermal efficiency of generating.The present invention is Mist heat recovering as far as possible, reduces temperature when flue gas is discharged, reduces the loss of residual heat resources.Owing to adopting superheated steam generation, improve the generating quality of steam, the generating thermal efficiency is improved, extends the service life of filling condensing turbine simultaneously.
Description
Technical field
The present invention relates to a kind of heating furnace residual heat integrative and utilize electricity generation system.
Background technology
At present, the heating furnace of Metallurgical Factory adopts heat storage type combustion, conventional combustion and oxygen-enriched combusting.For conventional combustion, owing to also having the nitrogen of 79% in air except the oxygen of 21%, nitrogen does not participate in combustion reaction in combustion, is all converted to flue gas.Oxygen-enriched combusting carrys out part with pure oxygen to replace combustion air and fuel to carry out combustion reaction, adopts oxygen-enriched combusting to reduce exhaust gas volumn, reduce the heat that flue gas is taken away.Under conventional combustion and oxygen-enriched combusting condition, heating furnace is come out of the stove flue-gas temperature about 900 DEG C, traditional exhaust heat recovering method is in flue, arrange highly effective air and gas preheater, waste heat is utilized to carry out preheating to combustion air and coal gas, after preheating is carried out to combustion air and coal gas, general flue-gas temperature still has about 350 DEG C, then direct through smoke stack emission, wastes a large amount of energy.
Summary of the invention
For the problems referred to above, the invention provides and a kind ofly fully utilize the heating furnace residual heat integrative that the cooling water beam waste heat in heating furnace and the fume afterheat in back-end ductwork carry out generating electricity and utilize electricity generation system.
For achieving the above object, heating furnace residual heat integrative of the present invention utilizes the generator that electricity generation system at least comprises high pressure superheated steam generation mechanism, low-pressure superheated steam produces mechanism, filling condensing turbine and is in transmission connection with described filling condensing turbine, the air intake group of described filling condensing turbine comprises main steam ports and filling mouth, the steam (vapor) outlet that described high pressure superheated steam produces mechanism is connected with described main steam ports, and the steam (vapor) outlet that described low-pressure superheated steam produces mechanism is connected with described filling mouth;
Described high pressure superheated steam produce mechanism comprise HP steam drum, be arranged on heating furnace in for the carbonated drink cooling heat exchanger that absorbs cooling water beam waste heat and the high pressure superheated steam heat exchanger be arranged in back-end ductwork, described HP steam drum and described carbonated drink cooling heat exchanger are interconnected by hot water circulating pump, form the first closed circuit, the steam (vapor) outlet of HP steam drum is connected with the steam inlet of high pressure superheated steam heat exchanger, and the steam (vapor) outlet of high pressure superheated steam heat exchanger and described high pressure superheated steam produce the steam (vapor) outlet of mechanism; Water in HP steam drum forms high-pressure saturated steam after described first closed circuit in HP steam drum, described high-pressure saturated steam changes high pressure superheated steam into after described high pressure superheated steam heat exchanger is overheated, described high pressure superheated steam enters the main steam ports of described filling condensing turbine, drives described electrical power generators for filling condensing turbine;
Described low-pressure superheated steam produces the low-pressure superheated steam heat exchanger that mechanism comprises low-pressure drum, is arranged on the low pressure steam-generating bank heat exchanger in back-end ductwork and is arranged in back-end ductwork, described low-pressure drum and described low pressure steam-generating bank heat exchanger are interconnected, form the second closed circuit, the steam (vapor) outlet of low-pressure drum is connected with the steam inlet of low-pressure superheated steam heat exchanger, and the steam (vapor) outlet of low-pressure superheated steam heat exchanger and described low-pressure superheated steam produce the steam (vapor) outlet of mechanism; Water in low-pressure drum forms saturation water and low-pressure saturated steam after described second closed circuit in low-pressure drum, described low-pressure saturated steam changes low-pressure superheated steam into after low-pressure superheated steam heat exchanger is overheated, described low-pressure superheated steam enters the filling mouth of described filling condensing turbine, drives described electrical power generators for filling condensing turbine;
Be connected with feed pump between described HP steam drum and low-pressure drum, the described saturation water in described low-pressure drum is transported in described HP steam drum; Described high pressure superheated steam heat exchanger, described low-pressure superheated steam heat exchanger and described low pressure steam-generating bank heat exchanger are successively set in back-end ductwork by flue gas flow direction.
Further, described electricity generation system also comprises the economizer be arranged in back-end ductwork, after described economizer is arranged on described low pressure steam-generating bank heat exchanger according to flue gas flow direction, the condenser of described filling condensing turbine is connected by the entrance of condensate pump with described economizer, the outlet of described economizer is connected with described low-pressure drum, and the condensate water that described condenser reclaims enters in described low-pressure drum after absorbing heat in described economizer.
Particularly, the end of described back-end ductwork is connected with air-introduced machine, and described air-introduced machine is connected with chimney.
Particularly, the high pressure in described high-pressure saturated steam and described high pressure superheated steam is within the scope of 0.8 ~ 2.0MPa, and the low pressure in described low-pressure saturated steam and described low-pressure superheated steam is within the scope of 0.2 ~ 0.8MPa
The present invention, both to cooling water beam waste heat recovery, also to flue gas waste heat recovery, utilizes the residual heat resources reclaimed to generate electricity, takes full advantage of residual heat resources.The high pressure superheated steam that the present invention produces and low-pressure superheated steam enter main steam ports and the filling mouth of filling condensing turbine respectively, achieve the cascade utilization of energy, improve the thermal efficiency of generating.High pressure superheated steam heat exchanger, low-pressure superheated steam heat exchanger, low pressure steam-generating bank heat exchanger, economizer is arranged successively in back-end ductwork, be used for absorbing the waste heat of different quality, flue-gas temperature is constantly reduced, the residual heat resources of flue gas are utilized as much as possible.Adopt superheated steam generation, improve generating quality and the generating thermal efficiency of steam, but also improve the mass dryness fraction of filling condensing turbine steam discharge, thus extend the service life of filling condensing turbine.
Accompanying drawing explanation
Fig. 1 is the structural representation that the heating furnace residual heat integrative of embodiment 1 utilizes electricity generation system;
Fig. 2 is the structural representation that the heating furnace residual heat integrative of embodiment 2 utilizes electricity generation system.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described.
Embodiment 1
As shown in Figure 1, the waste heat that the present embodiment reclaims comprises two parts: the flue gas of the waste heat of heating furnace burner hearth inner cooling water beam and the back-end ductwork about 350 DEG C of heating furnace.In the burner hearth of heating furnace 1, be provided with carbonated drink cooling heat exchanger 16, be used for absorbing the waste heat of cooling water beam.In back-end ductwork, set gradually high pressure superheated steam heat exchanger 2, low-pressure superheated steam heat exchanger 3, low pressure steam-generating bank heat exchanger 4 according to flue gas flow direction, be used for absorbing the waste heat of flue gas.The end of back-end ductwork is connected with air-introduced machine 6, and air-introduced machine 6 is connected with chimney 7.After the high-temperature flue gas preheated air coal gas that heating-furnace chamber inner combustion produces, flue-gas temperature is reduced to about 350 DEG C, then flue gas flows through high pressure superheated steam heat exchanger 2, low-pressure superheated steam heat exchanger 3, the low pressure steam-generating bank heat exchanger 4 in back-end ductwork successively, flue-gas temperature constantly reduces, last flue gas is discharged through chimney 7 under the effect of air-introduced machine 6, thus achieves the recovery to fume afterheat.
The present embodiment heating furnace residual heat integrative utilizes electricity generation system to comprise, and high pressure superheated steam produces mechanism, low-pressure superheated steam produces mechanism, filling condensing turbine 8 and generator 9, wherein filling condensing turbine 8 and generator 9 are in transmission connection, and filling condensing turbine drive electrical generators carries out power generation operation.The air intake group of filling condensing turbine 8 comprises main steam ports and filling mouth, high pressure superheated steam produces the steam (vapor) outlet of mechanism and is connected with the main steam ports of filling condensing turbine 8, and the steam (vapor) outlet that low-pressure superheated steam produces mechanism is connected with the filling mouth of filling condensing turbine 8.
High pressure superheated steam produces mechanism and comprises HP steam drum 14, carbonated drink cooling heat exchanger 16 and high pressure superheated steam heat exchanger 2.Wherein carbonated drink cooling heat exchanger 16 is arranged in the burner hearth of heating furnace, for absorbing the waste heat of cooling water beam.HP steam drum 14 is connected with the entrance of carbonated drink cooling heat exchanger 16 by hot water circulating pump 15, the outlet of carbonated drink cooling heat exchanger 16 is connected with HP steam drum 14 again, namely be interconnected between HP steam drum 14 and carbonated drink cooling heat exchanger 16, form the first closed circuit, this first closed circuit is forced to carry out periodic duty by hot water circulating pump 15.The steam (vapor) outlet of HP steam drum 14 is connected with the steam inlet of high pressure superheated steam heat exchanger 2, the steam (vapor) outlet of high pressure superheated steam heat exchanger 2 is the steam (vapor) outlet that described high pressure superheated steam produces mechanism, and that is the steam (vapor) outlet of high pressure superheated steam heat exchanger 2 is connected with the main steam ports of filling condensing turbine 8.
The water of HP steam drum 14 bottom enters the waste heat absorbing cooling water beam in carbonated drink cooling heat exchanger 16 under the effect of hot water circulating pump 15, water after heat absorption becomes steam water interface, again enter HP steam drum 14, thus complete the circulation of primary cooling water beam waste heat recovery.Because the waste heat of cooling water beam is absorbed, cooling water beam can not Yin Gaowen and produce distortion, thus ensure that the carrying out of heating furnace safety.Because HP steam drum 14 is except the container as water storage storage vapour, high-pressure saturated steam can also be changed into by steam water interface, so after steam water interface enters HP steam drum 14 again, a steam water interface part is transformed to high-pressure saturated steam, and a part changes saturation water into.Subsequently, high-pressure saturated steam enters in high pressure superheated steam heat exchanger 2, heat absorption changes high pressure superheated steam into after heating, high pressure superheated steam enters the main steam ports of filling condensing turbine 8, generate electricity for filling condensing turbine 8 drive electrical generators 9, the temperature of the flue gas simultaneously in back-end ductwork is reduced.
Low-pressure superheated steam produces mechanism and comprises low-pressure drum 12, is arranged on low pressure steam-generating bank heat exchanger 4 in back-end ductwork and low-pressure superheated steam heat exchanger 3.Described low-pressure drum 12 is connected with the entrance of described low pressure steam-generating bank heat exchanger 4, the outlet of described low pressure steam-generating bank heat exchanger 4 is connected with low-pressure drum 12 again, that is be interconnected between low-pressure drum 12 and described low pressure steam-generating bank heat exchanger 4, form the second closed circuit.The steam (vapor) outlet of low-pressure drum 12 is connected with the steam inlet of low-pressure superheated steam heat exchanger 3, the steam (vapor) outlet of low-pressure superheated steam heat exchanger 3 is the steam (vapor) outlet that described low-pressure superheated steam produces mechanism, also just says that the steam (vapor) outlet of low-pressure superheated steam heat exchanger 3 is connected with the filling mouth of filling condensing turbine 8.Low-pressure drum inside is provided with oxygen-eliminating device.
The water of low-pressure drum 12 bottom enters in low pressure steam-generating bank heat exchanger 4, and after absorbing fume afterheat, be transformed to steam water interface, steam water interface enters in low-pressure drum 12 again, thus completes a cyclic process.This second closed circuit without any need for external force, water due to what flow in the pipeline between described low-pressure drum 12 and the entrance of described low pressure steam-generating bank heat exchanger 4, and what flow in pipeline between the outlet of described low pressure steam-generating bank heat exchanger 4 and low-pressure drum 12 is steam water interface, thus the second closed circuit be rely on the severe of water and steam water interface poor come Natural Circulation process.Because low-pressure drum is except storing up except the container of vapour as water storage, can also steam water interface be changed into low-pressure saturated steam and saturation water, so after steam water interface enters low-pressure drum 12 again, part steam water interface is transformed to low-pressure saturated steam, and another part steam water interface is transformed to saturation water.Subsequently, low-pressure saturated steam enters in low-pressure superheated steam heat exchanger 3, heat absorption changes low-pressure superheated steam into after heating, low-pressure superheated steam enters the filling mouth of filling condensing turbine 8, generate electricity for filling condensing turbine 8 drive electrical generators 9, the flue-gas temperature simultaneously in back-end ductwork is reduced further.Owing to being provided with oxygen-eliminating device in low-pressure drum, the low-pressure saturated steam formed in low-pressure drum can carry out thermal de-aeration to the water in oxygen-eliminating device, makes the water in low-pressure drum be stripped of oxygen, is stripped of carbon dioxide simultaneously.
Be connected by feed pump 13 between HP steam drum 14 and low-pressure drum 12, the saturation water formed in low-pressure drum 12 is squeezed in HP steam drum 14 through feed pump 13, participates in the cyclic process between HP steam drum 14 and carbonated drink cooling heat exchanger 16.
The present invention's employing carries out to the superheated steam produced after the waste heat recovery of flue gas in the waste heat of heating furnace inner cooling water beam and back-end ductwork the mode fully utilizing generating, the mode that the mode generated electricity relative to the steam produced after separately adopting the waste heat recovery to heating furnace inner cooling water beam and the steam produced after adopting the waste heat recovery to flue gas in back-end ductwork separately generate electricity, each device distribution of the present embodiment rationally, more can absorb the low grade residual heat of low-temperature flue gas in back-end ductwork, reduce exhaust gas temperature, reduce energy loss.
The high-pressure saturated steam that the present embodiment utilizes high pressure superheated steam heat exchanger 2 to be produced by HP steam drum 14 is overheated, makes high-pressure saturated steam change high pressure superheated steam into, and high pressure superheated steam enters the main steam ports of filling condensing turbine 8; The low-pressure saturated steam simultaneously utilizing low-pressure superheated steam heat exchanger 3 to be produced by low-pressure drum 12 is overheated, makes low-pressure saturated steam change low-pressure superheated steam into, and low-pressure superheated steam enters the filling mouth of filling condensing turbine 8.The high pressure superheated steam that the present embodiment produces and low-pressure superheated steam enter main steam ports and the filling mouth of filling condensing turbine 8 respectively, and cascaded utilization of energy, improves the thermal efficiency of generating.
The present embodiment is in line with the principle of energy cascade utilization, high pressure superheated steam heat exchanger 2, low-pressure superheated steam heat exchanger 3, low pressure steam-generating bank heat exchanger 4 is arranged successively in back-end ductwork, be used for absorbing the waste heat of different quality, flue-gas temperature is constantly reduced, the residual heat resources of flue gas are utilized as much as possible.The more important thing is, low-pressure superheated steam heat exchanger 3 of the present invention, low pressure steam-generating bank heat exchanger 4 make use of the low grade residual heat of flue gas, reduce temperature when flue gas is discharged, reduce the loss of residual heat resources.
The present invention adopts superheated steam generation, improves the generating quality of steam.Superheated steam generation is for saturated vapor generating, and superheated steam generation not only makes the whole generating thermal efficiency improve, but also improves the mass dryness fraction of filling condensing turbine 8 steam discharge, thus extends the service life of filling condensing turbine 8.
The present embodiment relative to traditional type of cooling to the type of cooling of cooling water beam, has been saved a large amount of water resources and has driven water circulation electric energy, having decreased investment.
Embodiment 2
As shown in Figure 2, the present embodiment is provided with economizer 5 on the basis of above-described embodiment 1 in back-end ductwork, after described economizer is arranged on described low pressure steam-generating bank heat exchanger according to flue gas flow direction, the condenser 10 of described filling condensing turbine 8 is connected with the entrance of described economizer by condensate pump 11, the outlet of described economizer is connected with described low-pressure drum, and the condensate water that described condenser reclaims enters in described low-pressure drum 12 after absorbing heat in described economizer.
Like this, the exhaust steam of filling condensing turbine 8 afterbody becomes condensate water after condenser 10, economizer 5 is squeezed into by condensate pump 11, be used for absorbing the low temperature exhaust heat of flue gas, water after heat absorption enters in low-pressure drum 12, thus making condensate water again participate in the first closed circuit and the second closed circuit, generation high pressure superheated steam and low-pressure superheated steam generate electricity for filling condensing turbine 8 drive electrical generators 9 again.
The present embodiment has all beneficial effects that heating furnace residual heat integrative in embodiment 1 utilizes electricity generation system.In addition, due to the present embodiment also in back-end ductwork low pressure steam-generating bank heat exchanger 4 be below provided with economizer 5, the water in economizer 5 is made to absorb the waste heat of flue gas further, the flue-gas temperature of discharging is reduced further, approximately be low to moderate 120 DEG C, greatly reduce flue-gas temperature, make use of residual heat resources as much as possible.
Exhaust steam is condensed into condensate water by the condensed-water recovering device in the present embodiment, makes condensate water again participate in the first closed circuit and the second closed circuit, constantly conversion and circulation between liquid water and steam, saving water resource.
Embodiment 3
The difference of the present embodiment and above-described embodiment 1 is: the high pressure in high-pressure saturated steam described in the present embodiment and described high pressure superheated steam is 0.8Mpa, and the low pressure in described low-pressure saturated steam and described low-pressure superheated steam is 0.2MPa.
Embodiment 4
The present embodiment is only from the different of above-described embodiment 1: the high pressure in high-pressure saturated steam described in the present embodiment and described high pressure superheated steam is 1.27MPa, and the low pressure in described low-pressure saturated steam and described low-pressure superheated steam is 0.5MPa.
Embodiment 5
The present embodiment is only from the different of above-described embodiment 1: the high pressure in high-pressure saturated steam described in the present embodiment and described high pressure superheated steam is 2.0MPa, and the low pressure in described low-pressure saturated steam and described low-pressure superheated steam is 0.8MPa.
In the present invention described high-pressure saturated steam and described high pressure superheated steam in high pressure be not limited in embodiment 3,4,5 high-voltage value, preferable range is 0.8 ~ 2.0MPa; Low pressure in described low-pressure saturated steam and described low-pressure superheated steam is not limited to the low voltage value in embodiment 3,4,5, and preferable range is 0.2 ~ 0.8MPa.
Above; be only preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should define with claim is as the criterion.
Claims (4)
1. a heating furnace residual heat integrative utilizes electricity generation system, it is characterized in that: described electricity generation system at least comprises the generator that high pressure superheated steam produces mechanism, low-pressure superheated steam produces mechanism, filling condensing turbine and is in transmission connection with described filling condensing turbine, the air intake group of described filling condensing turbine comprises main steam ports and filling mouth, the steam (vapor) outlet that described high pressure superheated steam produces mechanism is connected with described main steam ports, and the steam (vapor) outlet that described low-pressure superheated steam produces mechanism is connected with described filling mouth;
Described high pressure superheated steam produce mechanism comprise HP steam drum, be arranged on heating furnace in for the carbonated drink cooling heat exchanger that absorbs cooling water beam waste heat and the high pressure superheated steam heat exchanger be arranged in back-end ductwork, described HP steam drum and described carbonated drink cooling heat exchanger are interconnected by hot water circulating pump, form the first closed circuit, the steam (vapor) outlet of HP steam drum is connected with the steam inlet of high pressure superheated steam heat exchanger, and the steam (vapor) outlet of high pressure superheated steam heat exchanger and described high pressure superheated steam produce the steam (vapor) outlet of mechanism; Water in HP steam drum forms high-pressure saturated steam after described first closed circuit in HP steam drum, described high-pressure saturated steam changes high pressure superheated steam into after described high pressure superheated steam heat exchanger is overheated, described high pressure superheated steam enters the main steam ports of described filling condensing turbine, drives described electrical power generators for filling condensing turbine;
Described low-pressure superheated steam produces the low-pressure superheated steam heat exchanger that mechanism comprises low-pressure drum, is arranged on the low pressure steam-generating bank heat exchanger in back-end ductwork and is arranged in back-end ductwork, described low-pressure drum and described low pressure steam-generating bank heat exchanger are interconnected, form the second closed circuit, the steam (vapor) outlet of low-pressure drum is connected with the steam inlet of low-pressure superheated steam heat exchanger, and the steam (vapor) outlet of low-pressure superheated steam heat exchanger and described low-pressure superheated steam produce the steam (vapor) outlet of mechanism; Water in low-pressure drum forms saturation water and low-pressure saturated steam after described second closed circuit in low-pressure drum, described low-pressure saturated steam changes low-pressure superheated steam into after low-pressure superheated steam heat exchanger is overheated, described low-pressure superheated steam enters the filling mouth of described filling condensing turbine, drives described electrical power generators for filling condensing turbine;
Be connected with feed pump between described HP steam drum and low-pressure drum, the described saturation water in described low-pressure drum is transported in described HP steam drum; Described high pressure superheated steam heat exchanger, described low-pressure superheated steam heat exchanger and described low pressure steam-generating bank heat exchanger are successively set in back-end ductwork by flue gas flow direction.
2. heating furnace residual heat integrative according to claim 1 utilizes electricity generation system, it is characterized in that: described electricity generation system also comprises the economizer be arranged in back-end ductwork, after described economizer is arranged on described low pressure steam-generating bank heat exchanger according to flue gas flow direction, the condenser of described filling condensing turbine is connected by the entrance of condensate pump with described economizer, the outlet of described economizer is connected with described low-pressure drum, and the condensate water that described condenser reclaims enters in described low-pressure drum after absorbing heat in described economizer.
3. heating furnace residual heat integrative according to claim 1 and 2 utilizes electricity generation system, it is characterized in that: the high pressure in described high-pressure saturated steam and described high pressure superheated steam is within the scope of 0.8 ~ 2.0MPa, and the low pressure in described low-pressure saturated steam and described low-pressure superheated steam is within the scope of 0.2 ~ 0.8MPa.
4. heating furnace residual heat integrative according to claim 1 and 2 utilizes electricity generation system, it is characterized in that: the end of described back-end ductwork is connected with air-introduced machine, and described air-introduced machine is connected with chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410408697.6A CN104180675B (en) | 2014-08-19 | 2014-08-19 | Heating furnace residual heat integrative utilizes electricity generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410408697.6A CN104180675B (en) | 2014-08-19 | 2014-08-19 | Heating furnace residual heat integrative utilizes electricity generation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104180675A CN104180675A (en) | 2014-12-03 |
| CN104180675B true CN104180675B (en) | 2016-01-06 |
Family
ID=51961891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410408697.6A Active CN104180675B (en) | 2014-08-19 | 2014-08-19 | Heating furnace residual heat integrative utilizes electricity generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104180675B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930485B (en) * | 2015-06-19 | 2017-03-08 | 上海优华系统集成技术股份有限公司 | A kind of flue gas waste heat recovery system and its recovery method and purposes |
| CN106052407B (en) * | 2016-08-08 | 2018-06-01 | 中冶华天南京工程技术有限公司 | heating furnace waste heat comprehensive utilization system |
| CN106091713A (en) * | 2016-08-08 | 2016-11-09 | 中冶华天南京工程技术有限公司 | The residual heat combined recirculation system of heating furnace |
| CN106839789A (en) * | 2017-02-08 | 2017-06-13 | 中冶华天工程技术有限公司 | A kind of heater for rolling steel residual neat recovering system based on air and coal gas progressive solution |
| CN106643191A (en) * | 2017-02-08 | 2017-05-10 | 中冶华天工程技术有限公司 | Power generation system based on steel smelting furnace and steel rolling heating furnace waste heat integration |
| CN106679439B (en) * | 2017-02-08 | 2019-02-19 | 中冶华天工程技术有限公司 | A waste heat utilization system of a steel rolling heating furnace |
| CN106766966B (en) * | 2017-02-08 | 2019-09-17 | 中冶华天工程技术有限公司 | A kind of heater for rolling steel waste heat recycling system |
| CN106766967B (en) * | 2017-02-08 | 2019-02-19 | 中冶华天工程技术有限公司 | Optimal utilization system of flue gas waste heat from rolling heating furnace with adjustable waste heat recovery ratio |
| CN106705689B (en) * | 2017-02-08 | 2019-02-19 | 中冶华天工程技术有限公司 | A waste heat utilization system of flue gas of rolling heating furnace with adjustable waste heat recovery ratio |
| CN106871651B (en) * | 2017-02-08 | 2019-02-19 | 中冶华天工程技术有限公司 | A system for optimal utilization of waste heat of rolling heating furnace |
| CN106813510A (en) * | 2017-02-08 | 2017-06-09 | 中冶华天工程技术有限公司 | A kind of heater for rolling steel afterheat utilizing system based on combustion air progressive solution |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08338206A (en) * | 1995-06-13 | 1996-12-24 | Mitsubishi Heavy Ind Ltd | Coolant/electric power equally supplying heat recovery mechanism |
| CN101769686A (en) * | 2008-12-30 | 2010-07-07 | 重庆赛迪工业炉有限公司 | Waste heat recovery system of heating furnace |
| CN102345982A (en) * | 2011-01-10 | 2012-02-08 | 沈阳东大工业炉有限公司 | Heating furnace waste heat recovery generating device |
| CN103291390A (en) * | 2013-06-20 | 2013-09-11 | 华效资源有限公司 | Heating furnace flue gas and steam waste heat recycling and power generating system and power generating method |
| CN204064000U (en) * | 2014-08-19 | 2014-12-31 | 中冶华天工程技术有限公司 | Heating furnace residual heat integrative utilizes electricity generation system |
-
2014
- 2014-08-19 CN CN201410408697.6A patent/CN104180675B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08338206A (en) * | 1995-06-13 | 1996-12-24 | Mitsubishi Heavy Ind Ltd | Coolant/electric power equally supplying heat recovery mechanism |
| CN101769686A (en) * | 2008-12-30 | 2010-07-07 | 重庆赛迪工业炉有限公司 | Waste heat recovery system of heating furnace |
| CN102345982A (en) * | 2011-01-10 | 2012-02-08 | 沈阳东大工业炉有限公司 | Heating furnace waste heat recovery generating device |
| CN103291390A (en) * | 2013-06-20 | 2013-09-11 | 华效资源有限公司 | Heating furnace flue gas and steam waste heat recycling and power generating system and power generating method |
| CN204064000U (en) * | 2014-08-19 | 2014-12-31 | 中冶华天工程技术有限公司 | Heating furnace residual heat integrative utilizes electricity generation system |
Non-Patent Citations (1)
| Title |
|---|
| 《余热梯级回收技术在线棒材加热炉上的应用》;武绍井;《钢铁技术》;20131231;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104180675A (en) | 2014-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104180675B (en) | Heating furnace residual heat integrative utilizes electricity generation system | |
| CN107014218B (en) | Thermal power generation system based on waste heat and complementary energy integrated utilization of coking plant | |
| RU2501958C2 (en) | Method of energy generation by means of thermodynamic cycles with water vapour of high pressure and moderate temperature | |
| CN111140296A (en) | A system and method for peak regulation of molten salt cascade storage and discharge energy for thermal power units | |
| CN106989611B (en) | Coke oven gas and dry quenching waste heat comprehensive power generation system | |
| CN109578968B (en) | Coal-fired power generation system with sectional coupling of coal-fired boiler and garbage incinerator | |
| CN101178017A (en) | Method for recycling and regenerating steel plant residual heat boiler saturated steam | |
| CN110397481B (en) | Garbage incineration power generation device capable of improving main steam parameters | |
| CN101392992A (en) | Silicon smelting electric furnace waste heat power generation process flow and configuration | |
| CN101655019A (en) | Dry quenching dual pressure high-temperature and high-pressure residual heat power generation system | |
| CN103353239A (en) | Improved lime kiln exhaust gas waste heat power generation system and power generation method thereof | |
| CN108590789A (en) | Coke oven raw gas sensible heat and red coke sensible heat combined power generation process and system | |
| CN109057892A (en) | A kind of tower slot combination solar energy optical-thermal and oxygen-enriched coal unit coupled electricity-generation system | |
| CN114655923A (en) | A system and method for co-generation of hydrogen and electricity in a coal-fired boiler | |
| CN101603679A (en) | Wen Cizhong presses afterheat boiler system in the float glass smelting kiln | |
| CN209485081U (en) | A kind of waste heat recycling utilization system | |
| CN105627283B (en) | Steam system suitable for power station boiler with steam parameter of 700 ℃ grade and above | |
| CN204064000U (en) | Heating furnace residual heat integrative utilizes electricity generation system | |
| CN101706095B (en) | Method for recovering acid making waste heat | |
| CN111457344B (en) | Combined reheating power generation system of combustion boiler and waste heat boiler | |
| CN110118492A (en) | UTILIZATION OF VESIDUAL HEAT IN production system based on super inner combustion sintering brick tunnel oven | |
| CN212457967U (en) | Gas waste heat power generation system of smelting reduction furnace | |
| CN211204007U (en) | Thermal device of double-pressure reheating dry quenching boiler | |
| CN111288810A (en) | A device and method for high-efficiency power generation with waste heat steam of a converter | |
| CN205714295U (en) | Based on supercritical carbon dioxide and the thermal electric generator of Steam Combined Cycle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Jianye District of Nanjing City, Jiangsu province 210019 the Fuchun River Street No. 18 Patentee after: HUATIAN ENGINEERING & TECHNOLOGY CORPORATION, MCC Address before: 243005 No. 699 West Hunan Road, Anhui, Ma'anshan Patentee before: HUATIAN ENGINEERING & TECHNOLOGY CORPORATION, MCC |
|
| CP02 | Change in the address of a patent holder |