CN203384962U - System for heating condensate water or supplemented water of power plant by adopting blast furnace slag flushing water - Google Patents
System for heating condensate water or supplemented water of power plant by adopting blast furnace slag flushing water Download PDFInfo
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- CN203384962U CN203384962U CN201320405826.7U CN201320405826U CN203384962U CN 203384962 U CN203384962 U CN 203384962U CN 201320405826 U CN201320405826 U CN 201320405826U CN 203384962 U CN203384962 U CN 203384962U
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Abstract
The utility model discloses a system for heating condensate water or supplemented water of power plant by adopting blast furnace slag flushing water. The system comprises a filter, a slag flushing water pump and a heat exchanger, and is characterized in that an inlet of the filter is connected with a slag flushing water tank, an outlet of the filter is connected with an inlet of the slag flushing water pump, an outlet of the slag flushing water pump is connected with an inlet on a slag flushing water side of the heat exchanger, and an outlet of the slag flushing water side of the heat exchanger is connected with the slag flushing water tank; an inlet of the other side of the heat exchanger is connected with an outlet of a condensate return water pump, and a corresponding outlet of the other side of the heat exchanger is connected with a condensate water inlet of a deaerator; or, the inlet of the other side of the heat exchanger is connected with an outlet of a fill pump of the deaerator, and the corresponding outlet of the other side of the heat exchanger is connected with a supplementing water inlet of the deaerator. The provided power generation system is used for heating condensate water in a traditional generator unit or supplemented water of the deaerator, accordingly, the temperature of water at the inlet of the deaerator is increased, and the temperature difference between the inlet and the outlet of the deaerator is reduced, so that energy required when water is heated in a boiler is saved, waste heat of the blast furnace slag flushing water is converted into energy of the traditional generator unit indirectly, and the power generation action is realized.
Description
Technical field
The utility model relates to heat recovery, relates in particular to the system that the metallurgy industry blast furnace slag quenching water adds steam power plant's condensed water or moisturizing.
Background technology
Steel plant are in the blast furnace ironmaking flushing cinder; produce large amount temperature at the flushing cinder water of 80-95 ℃, the flushing cinder that again circulates is filtered after cooling in the flushing cinder water sedimentation, and most of heat runs off in granulation and cooling process; both caused the waste of the energy, again environment had been caused to thermal pollution.
The conventional electric generators group is as shown in Figure 1: through boiler, 1 heating produces steam to water, steam enters steam turbine 2 actings, drive generator 3 generatings, enter condenser 4 through the low-pressure steam done work and become condensed water, through condensate return pump, 5 pressurizations enter oxygen-eliminating device 6 deoxygenations to condensed water again, finally get back to boiler 1 heating by boiler feed pump 9 pressurization again, oxygen-eliminating device 68 carries out moisturizing by oxygen-eliminating device small pump 7 from the moisturizing pond.
Current existing blast furnace slag quenching water exhaust heat recovery power generation technology will, the blast furnace slag quenching water waste heat through the heat exchanger displacement, directly be generated electricity to generating set by the organic media transferring heat energy.But because equipment investment is high, safety issue, the stabilization of equipment performance of organic media are poor, and the investment payback time is longer, therefore promote and be restricted in practice.
Summary of the invention
In order to solve the problems of the technologies described above, the system that the utility model provides a kind of blast furnace slag quenching water to add steam power plant's condensed water or moisturizing, fully effectively utilize using exhaust heat of slag flushing water and generated electricity.
For achieving the above object, the utility model is taked following technical scheme.
Blast furnace slag quenching water adds the system of steam power plant's condensed water or moisturizing by filter, slag-washing-out pump and heat exchanger form, filter inlet is connected with the flushing cinder pond, filter outlet is connected with the slag-washing-out pump entrance, the slag-washing-out pump outlet is connected with the flushing cinder water side entrance of heat exchanger, the flushing cinder water side outlet of heat exchanger is connected with the flushing cinder pond, the opposite side entrance of heat exchanger is connected with the condensate return delivery side of pump, corresponding outlet is connected with the condensing water inlet of oxygen-eliminating device, the opposite side entrance of heat exchanger or be connected with oxygen-eliminating device moisturizing delivery side of pump, corresponding outlet is connected with the moisturizing entrance of oxygen-eliminating device.
The blast furnace slag quenching water that the utility model provides adds the system of steam power plant's condensed water or moisturizing, the heat reclaimed is not directly used in to generating, but condensed water or oxygen-eliminating device moisturizing for heating the conventional electric generators group, improve the inlet water temperature of oxygen-eliminating device, dwindle the temperature difference of oxygen-eliminating device entrance and exit, thereby saved the energy required when water heats in boiler, indirectly the blast furnace slag quenching water waste heat has been converted into to the energy of conventional electric generators group, played the generating effect.
The accompanying drawing explanation
Fig. 1 is conventional electric generators group schematic diagram.
Fig. 2 is the schematic diagram that blast furnace slag quenching water of the present utility model adds the system A of steam power plant's condensed water or moisturizing.
Fig. 3 is the schematic diagram that blast furnace slag quenching water of the present utility model adds the system B of steam power plant's condensed water or moisturizing.
Shown in figure: 1, boiler; 2, steam turbine; 3, generator; 4, condenser; 5, condensate return pump: 6, oxygen-eliminating device; 7, oxygen-eliminating device small pump; 8, moisturizing pond; 9, boiler feed pump; 21, flushing cinder pond; 22, filter; 23, slag-washing-out pump; 24, heat exchanger.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 2, the system A that blast furnace slag quenching water adds steam power plant's condensed water or moisturizing comprises filter 22, slag-washing-out pump 23 and heat exchanger 24.Filter 22 entrances are connected with flushing cinder pond 21, filter 22 outlets are connected with slag-washing-out pump 23 entrances, slag-washing-out pump 23 outlets are connected with the flushing cinder water side entrance of heat exchanger 24, the flushing cinder water side outlet of heat exchanger 24 is connected with flushing cinder pond 21, and the opposite side entrance of heat exchanger 24 is connected with the outlet of condensate return pump 5, corresponding outlet is connected with the condensing water inlet of oxygen-eliminating device 6.
Through boiler, 1 heating produces steam to water, steam enters steam turbine 2 actings, drive generator 3 generatings, enter condenser 4 through the low-pressure steam done work and become condensed water, through condensate return pump, 5 pressurizations enter heat exchanger 24 to condensed water again, the flushing cinder water filter with process filter 22 in flushing cinder pond 21, slag-washing-out pump 23 pressurizations entered heat exchanger 24 again carries out heat exchange, condensed water improves temperature through heat exchange, enter again oxygen-eliminating device 6 deoxygenations, finally get back to boiler 1 heating by boiler feed pump 9 pressurizations again, flushing cinder water is got back to flushing cinder pond 21 in heat exchanger 24 after heat exchange.
As shown in Figure 3, the system B that blast furnace slag quenching water adds steam power plant's condensed water or moisturizing comprises filter 22, slag-washing-out pump 23 and heat exchanger 24.Filter 22 entrances are connected with flushing cinder pond 21, filter 22 outlets are connected with slag-washing-out pump 23 entrances, slag-washing-out pump 23 outlets are connected with the flushing cinder water side entrance of heat exchanger 24, the flushing cinder water side outlet of heat exchanger 24 is connected with flushing cinder pond 21, the opposite side entrance of heat exchanger 24 or with the outlet of oxygen-eliminating device small pump 7, be connected, corresponding outlet is connected with the moisturizing entrance of oxygen-eliminating device 6.
Through boiler, 1 heating produces steam to water, steam enters steam turbine 2 actings, drive generator 3 generatings, enter condenser 4 through the low-pressure steam done work and become condensed water, through condensate return pump, 5 pressurizations enter oxygen-eliminating device 6 deoxygenations to condensed water again, finally get back to boiler 1 heating by boiler feed pump 9 pressurizations again, oxygen-eliminating device 68 carries out moisturizing by oxygen-eliminating device small pump 7 from the moisturizing pond, moisturizing out enters heat exchanger 24 from oxygen-eliminating device small pump 7, with process filter 22 in flushing cinder pond 21, filter, the flushing cinder water that slag-washing-out pump 23 pressurizations enter heat exchanger 24 again carries out heat exchange, moisturizing improves temperature through heat exchange, enter again oxygen-eliminating device 6, flushing cinder water is got back to flushing cinder pond 21 in heat exchanger 24 after heat exchange.
It is to be noted; the above is the schematic embodiment of the utility model; it is not the restriction to technical solutions of the utility model; the equivalent variations that any those of ordinary skill in the art do the utility model technical characterictic or corresponding improvement, still within protection domain of the present utility model.
Claims (2)
1. blast furnace slag quenching water adds the system of steam power plant's condensed water or moisturizing, by filter, slag-washing-out pump and heat exchanger, formed, it is characterized in that: filter inlet is connected with the flushing cinder pond, filter outlet is connected with the slag-washing-out pump entrance, the slag-washing-out pump outlet is connected with the flushing cinder water side entrance of heat exchanger, the flushing cinder water side outlet of heat exchanger is connected with the flushing cinder pond, and the opposite side entrance of heat exchanger is connected with the condensate return delivery side of pump, corresponding outlet is connected with the condensing water inlet of oxygen-eliminating device.
2. blast furnace slag quenching water according to claim 1 adds the system of steam power plant's condensed water or moisturizing, it is characterized in that: the opposite side entrance of heat exchanger or with oxygen-eliminating device moisturizing delivery side of pump, be connected, corresponding outlet is connected with the moisturizing entrance of oxygen-eliminating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320405826.7U CN203384962U (en) | 2013-07-09 | 2013-07-09 | System for heating condensate water or supplemented water of power plant by adopting blast furnace slag flushing water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320405826.7U CN203384962U (en) | 2013-07-09 | 2013-07-09 | System for heating condensate water or supplemented water of power plant by adopting blast furnace slag flushing water |
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| Publication Number | Publication Date |
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| CN203384962U true CN203384962U (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320405826.7U Expired - Fee Related CN203384962U (en) | 2013-07-09 | 2013-07-09 | System for heating condensate water or supplemented water of power plant by adopting blast furnace slag flushing water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937918A (en) * | 2014-05-07 | 2014-07-23 | 江苏沙钢集团有限公司 | System and method of pre-heating boiler water by blast furnace cinder flushing water |
| CN104075308A (en) * | 2014-07-04 | 2014-10-01 | 莱芜钢铁集团有限公司 | Boiler steam-water circulation system and boiler water replenishment preheating method |
| CN104279551A (en) * | 2013-07-09 | 2015-01-14 | 北京亿玮坤节能科技有限公司 | Method and system for heating power plant condensate water or supplementing water through blast furnace slag flushing water |
-
2013
- 2013-07-09 CN CN201320405826.7U patent/CN203384962U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279551A (en) * | 2013-07-09 | 2015-01-14 | 北京亿玮坤节能科技有限公司 | Method and system for heating power plant condensate water or supplementing water through blast furnace slag flushing water |
| CN103937918A (en) * | 2014-05-07 | 2014-07-23 | 江苏沙钢集团有限公司 | System and method of pre-heating boiler water by blast furnace cinder flushing water |
| CN103937918B (en) * | 2014-05-07 | 2016-05-11 | 江苏沙钢集团有限公司 | A kind of system and method for blast furnace slag quenching water preboiler water |
| CN104075308A (en) * | 2014-07-04 | 2014-10-01 | 莱芜钢铁集团有限公司 | Boiler steam-water circulation system and boiler water replenishment preheating method |
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| C14 | Grant of patent or utility model | ||
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| PP01 | Preservation of patent right |
Effective date of registration: 20210721 Granted publication date: 20140108 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210825 Granted publication date: 20140108 |
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| PD01 | Discharge of preservation of patent | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220513 Address after: 102488 m846, floor 1, building 1, No. 73, Changhong West Road, Xilu street, Fangshan District, Beijing (cluster registration) Patentee after: China coal Weikun (Beijing) energy saving and Environmental Protection Technology Co.,Ltd. Address before: 102200 509, block a, No. 5, Chaoqian Road, science and Technology Park, Changping District, Beijing Patentee before: BEIJING IVYQUEN ENERGY SAVING TECHNOLOGIES LTD. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |