CN103851924A - Waste heat full-recovery recycling integration system for heating furnace - Google Patents
Waste heat full-recovery recycling integration system for heating furnace Download PDFInfo
- Publication number
- CN103851924A CN103851924A CN201410070106.9A CN201410070106A CN103851924A CN 103851924 A CN103851924 A CN 103851924A CN 201410070106 A CN201410070106 A CN 201410070106A CN 103851924 A CN103851924 A CN 103851924A
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- CN
- China
- Prior art keywords
- heating furnace
- drum
- steam
- waste heat
- discharge
- 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.)
- Pending
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 63
- 239000002918 waste heat Substances 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 title claims abstract description 11
- 238000004064 recycling Methods 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000010248 power generation Methods 0.000 claims description 22
- 230000005611 electricity Effects 0.000 claims description 17
- 238000009834 vaporization Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 6
- 239000008234 soft water Substances 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 3
- 239000003245 coal Substances 0.000 abstract 3
- 238000010304 firing Methods 0.000 description 4
- 210000004940 Nucleus Anatomy 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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
Abstract
The invention discloses a waste heat full-recovery recycling integration system for a heating furnace. The waste heat full-recovery recycling integration system comprises a coal economizer, an evaporator, a steam superheater and a heat exchanger which are sequentially arranged in a flue of the heating furnace, wherein a softened-water tank is connected with the coal economizer; the coal economizer is connected with a steam drum; the steam drum is connected with a steam exhaust header pipe through a steam exhaust branch pipe; the steam exhaust header pipe is connected with the steam superheater arranged in the flue of the heating furnace; the steam superheater is connected with a heat steam exhaust header pipe; the heat steam exhaust header pipe is connected with an intelligent generator set; the intelligent generator set is connected with a power receiving cabinet of the heating furnace and a power grid. According to the waste heat full-recovery recycling integration system disclosed by the invention, waste heat of flue gas of the heating furnace can be utilized to the maximum extent; all steam generated by the heating furnace is used for meeting the production requirement of electrical equipment of the heating furnace, and thus power self-sufficiency of all equipment of the heating furnace is realized, and the safety and the reliability are realized.
Description
Technical field
The present invention relates to the full recycle and reuse integrated system of a kind of heating furnace waste heat.
Background technology
In industrial furnace field, in industrial furnace, flue gas is through being arranged on after the heat exchanger in flue, and general exhaust gas temperature also has 400 ℃ of left and right, and the waste heat in this part flue gas no longer reclaims conventionally, and is directly discharged in atmosphere, causes the significant wastage of the energy.
In industrial furnace field, the supply of electric power of firing equipment is supplied by outer net conventionally.For large integrated enterprise, the supply of electric power of firing equipment is set to two-way power supply conventionally, the electrogenesis source of making a living, a road, and a road is emergency power supply; For little private enterprise, the supply of electric power of firing equipment is conventionally set to a road and produces power supply, and emergency power supply is not set.There is potential safety hazard in this, once supply of electric power stops because of fault, high-temperature heating device can be damaged in the running of firing equipment, and serious situation also can be blasted because of combustion gas tempering.
Summary of the invention
For the problems referred to above, the invention provides a kind of recovery utilization rate of high temperature furnace, and the heating furnace waste heat recovery that utilizes the heat reclaiming to generate electricity recycles integrated system.
For achieving the above object, the full recycle and reuse system of heating furnace waste heat of the present invention, comprise the heat exchanger, steam superheater, evaporimeter and the economizer that are successively set in heating flue, the water inlet of described economizer connects softened water tank by soft water feed pipe, and described soft water feed pipe is provided with feed pump;
Described system also comprises the first drum and the second drum, wherein said the first drum and described the second drum communicate by the delivery port of pipeline and described economizer respectively, described the first drum communicates respectively by outlet and the entrance of the first pipeline group and vaporization cooling-part, described the second drum communicates respectively by air inlet and the gas outlet of second pipe group and described evaporimeter, described the first drum and described the second drum communicate by vapor discharge channel group and described steam superheater respectively, described steam superheater is by the required energy of vapours discharge manifold output intelligent power generation unit work, described intelligent power generation unit electrical connection electricity consumption group, provide the work of described electricity consumption group required electric weight.
Further, described intelligent power generation unit comprises three generator units.
Especially, described vapor discharge channel comprises and is communicated with respectively the discharge of steam house steward that the first discharge of steam arm of described the first drum and the second drum and the second discharge of steam arm and described the first discharge of steam arm and described the second discharge of steam arm are all communicated with, and described discharge of steam house steward's gas outlet and described steam superheater are communicated with.
Further, described the first pipeline group comprises the first circulating line of the entrance that is communicated with described the first drum and described vaporization cooling-part, and being communicated with the first increase in pipeline of the outlet of described the first drum and described vaporization cooling-part, wherein said the first circulating line is provided with the first circulating pump;
Described second pipe group comprises the second circulating line of the air inlet that is communicated with described the second drum and described evaporimeter, and is communicated with the second increase in pipeline of described the second drum and described evaporimeter, and wherein said the second circulating line is provided with the second circulating pump.
Particularly, described electricity consumption group comprises that heating furnace is subject to electric cabinet and electrical network.
1, the present invention is provided with heat exchanger, steam superheater, evaporimeter and economizer in heating furnace flue, can utilize to greatest extent the waste heat of flue gas of heating furnace.
2, all steam that heating furnace of the present invention is produced are all used to supply with the generating needs of intelligent power generation unit, the electricity that intelligent power generation unit is produced is transported to heating furnace and is subject to electric cabinet, in order to maintain the need of production of heating furnace consumer, thereby the electricity consumption of all equipment of heating furnace is not affected by external condition, reach self-sufficiency, safe and reliable.And the electricity that intelligent power generation unit is produced can be realized rich electric power in the situation that furnace apparatus cannot all consume and plant area's electrical network is grid-connected, to save electric energy.
3, intelligent generator component of the present invention is three generator units, and in the time of heating furnace full production, three generator units start simultaneously, meets the generating requirement of heating furnace production steam; When heating furnace is for some reason when urgent blowing out, the quantity of steam that heating furnace produces diminishes, intelligent power generation unit is closed down one group or two groups of generator units according to the variation of quantity of steam, now, the non-core consumer of heating furnace is closed, steam-electric power amount meets the operation of heating furnace nucleus equipment, to guarantee the safety of heating furnace; Along with the reduction gradually of furnace temp, steam generation also reduces gradually, in the time that the quantity of steam of heating furnace generation is not enough to maintain the operation of intelligent power generation unit, close all generator units, now all consumers of heating furnace all quit work, and now, furnace temp is enough low, all consumers are out of service can not constitute a threat to the safety of heating furnace.
Accompanying drawing explanation
Fig. 1 is the flow chart that heating furnace waste heat recovery of the present invention recycles the embodiment of integrated system.
The specific embodiment
Below in conjunction with Figure of description, the present invention will be further described.
As shown in Figure 1, the full recycle and reuse system of heating furnace waste heat of the present invention, comprise the heat exchanger 8, steam superheater 7, evaporimeter 6 and the economizer 4 that are successively set in heating flue 5, the water inlet of described economizer connects softened water tank 1 by soft water feed pipe 2, and described soft water feed pipe is provided with feed pump 2;
Described system also comprises the first drum 9 and the second drum 15, wherein said the first drum and described the second drum communicate by the delivery port of pipeline and described economizer respectively, described the first drum communicates respectively by outlet and the entrance of the first pipeline group and vaporization cooling-part 12, described the second drum communicates respectively by air inlet and the gas outlet of second pipe group and described evaporimeter, described the first drum and described the second drum communicate by vapor discharge channel group and described steam superheater respectively, described steam superheater is exported the intelligent power generation unit 22 required energy of working by vapours discharge manifold 21, described intelligent power generation unit electrical connection electricity consumption group, provide the work of described electricity consumption group required electric weight.Described electricity consumption group comprises that heating furnace is subject to electric cabinet 23 and electrical network 24.
Further, described intelligent power generation unit 22 comprises three generator units, and intelligent power generation unit 22 is divided into three generator unit A, B and C, and intelligent power generation unit 22 is connected by electric cabinet 23 with electrical network 24 with heating furnace.
Especially, described vapor discharge channel comprises and is communicated with respectively the discharge of steam house steward that the first discharge of steam arm of described the first drum and the second drum and the second discharge of steam arm and described the first discharge of steam arm and described the second discharge of steam arm are all communicated with, and described discharge of steam house steward's gas outlet and described steam superheater are communicated with.
Further, described the first pipeline group comprises the first circulating line 11 of the entrance that is communicated with described the first drum and described vaporization cooling-part, and being communicated with the first increase in pipeline 13 of the outlet of described the first drum and described vaporization cooling-part, wherein said the first circulating line is provided with the first circulating pump 10;
Described second pipe group comprises the second circulating line 17 of the air inlet that is communicated with described the second drum and described evaporimeter, and being communicated with the second increase in pipeline 18 of described the second drum and described evaporimeter, wherein said the second circulating line is provided with the second circulating pump 16.
As shown in Figure 1, in the present embodiment, in heating furnace flue 5, be provided with economizer 4, evaporimeter 6, steam superheater 7 and heat exchanger 8, can reclaim to greatest extent the waste heat in flue gas of heating furnace, and 8 fume afterheat is fully reclaimed by economizer 4, evaporimeter 6 and steam superheater 7 after heat exchanger, produce high-grade superheated steam.
As shown in Figure 1, in the present embodiment, by the second discharge of steam arm 14 and 19, steam is delivered to discharge of steam house steward 20 by the first drum 9 and the second drum 9, discharge of steam house steward 20 is overheated in steam superheater 7 by all steam, the high-grade superheated steam producing is delivered to intelligent power generation unit 22 through superheat steam pipeline 21 and generates electricity, the electricity that intelligent power generation unit 22 is produced is transported to heating furnace and is subject to electric cabinet 23, heating furnace is subject to electric cabinet 23 that electric power is transported to the each consumer of heating furnace, and rich electric power is transported to workshop electrical network 24 and realizes grid-connected.The steam that waste heat of flue gas of heating furnace is produced is for generating, and supplies with the consumer of heating furnace, thus heating furnace electricity consumption reach self-sufficiency, be not subject to ectocine, safe and reliable; And the electricity that intelligent power generation unit is produced can be realized rich electric power in the situation that furnace apparatus cannot all consume and plant area's electrical network is grid-connected, to save electric energy.
As shown in Figure 1, in the present embodiment, intelligent power generation unit 22 is divided into three generator unit A, B and C, and the quantity of steam that can produce according to heating furnace carrys out the running status of intelligent adjusting generator unit A, B and C.In the time of heating furnace full production, three generator units start simultaneously, meet the generating requirement of heating furnace production steam; When heating furnace is for some reason when urgent blowing out, the quantity of steam that heating furnace produces diminishes, intelligent power generation unit is closed down one group or two groups of generator units according to the variation of quantity of steam, now, the non-core consumer of heating furnace is closed, steam-electric power amount meets the operation of heating furnace nucleus equipment, to guarantee the safety of heating furnace; Along with the reduction gradually of furnace temp, steam generation also reduces gradually, in the time that the quantity of steam of heating furnace generation is not enough to maintain the operation of intelligent power generation unit, close all generator units, now all consumers of heating furnace all quit work, and now, furnace temp is enough low, all consumers are out of service can not constitute a threat to the safety of heating furnace.
Above; be only preferred embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (5)
1. the full recycle and reuse system of heating furnace waste heat, it is characterized in that: comprise the heat exchanger, steam superheater, evaporimeter and the economizer that are successively set in heating flue, the water inlet of described economizer connects softened water tank by soft water feed pipe, and described soft water feed pipe is provided with feed pump;
Described system also comprises the first drum and the second drum, wherein said the first drum and described the second drum communicate by the delivery port of pipeline and described economizer respectively, described the first drum communicates respectively by outlet and the entrance of the first pipeline group and vaporization cooling-part, described the second drum communicates respectively by air inlet and the gas outlet of second pipe group and described evaporimeter, described the first drum and described the second drum communicate by vapor discharge channel group and described steam superheater respectively, described steam superheater is by the required energy of vapours discharge manifold output intelligent power generation unit work, described intelligent power generation unit electrical connection electricity consumption group, provide the work of described electricity consumption group required electric weight.
2. heating furnace waste heat recovery cyclic utilization system according to claim 1, is characterized in that: described intelligent power generation unit comprises three generator units.
3. heating furnace waste heat recovery cyclic utilization system according to claim 1, it is characterized in that: described vapor discharge channel comprises and be communicated with respectively the discharge of steam house steward that the first discharge of steam arm of described the first drum and the second drum and the second discharge of steam arm and described the first discharge of steam arm and described the second discharge of steam arm are all communicated with, described discharge of steam house steward's gas outlet and described steam superheater are communicated with.
4. heating furnace waste heat recovery cyclic utilization system according to claim 1, it is characterized in that: described the first pipeline group comprises the first circulating line of the entrance that is communicated with described the first drum and described vaporization cooling-part, and being communicated with the first increase in pipeline of the outlet of described the first drum and described vaporization cooling-part, wherein said the first circulating line is provided with the first circulating pump;
Described second pipe group comprises the second circulating line of the air inlet that is communicated with described the second drum and described evaporimeter, and is communicated with the second increase in pipeline of described the second drum and described evaporimeter, and wherein said the second circulating line is provided with the second circulating pump.
5. heating furnace waste heat recovery cyclic utilization system according to claim 1, is characterized in that: described electricity consumption group comprises that heating furnace is subject to electric cabinet and electrical network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070106.9A CN103851924A (en) | 2014-02-27 | 2014-02-27 | Waste heat full-recovery recycling integration system for heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070106.9A CN103851924A (en) | 2014-02-27 | 2014-02-27 | Waste heat full-recovery recycling integration system for heating furnace |
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| Publication Number | Publication Date |
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| CN103851924A true CN103851924A (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410070106.9A Pending CN103851924A (en) | 2014-02-27 | 2014-02-27 | Waste heat full-recovery recycling integration system for heating furnace |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091614A (en) * | 2015-07-17 | 2015-11-25 | 张更生 | Steam recycling method |
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-
2014
- 2014-02-27 CN CN201410070106.9A patent/CN103851924A/en active Pending
Patent Citations (10)
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| US20090090111A1 (en) * | 2007-10-04 | 2009-04-09 | General Electric Company | Supercritical steam combined cycle and method |
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Application publication date: 20140611 |