CN208475614U - A kind of power plant for self-supply of steel mill steady load measure system - Google Patents
A kind of power plant for self-supply of steel mill steady load measure system Download PDFInfo
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- CN208475614U CN208475614U CN201820702864.1U CN201820702864U CN208475614U CN 208475614 U CN208475614 U CN 208475614U CN 201820702864 U CN201820702864 U CN 201820702864U CN 208475614 U CN208475614 U CN 208475614U
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- heat exchanger
- pipe
- fixedly connected
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 23
- 239000010959 steel Substances 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 188
- 230000005494 condensation Effects 0.000 claims abstract description 20
- 238000009833 condensation Methods 0.000 claims abstract description 20
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 4
- 210000004907 gland Anatomy 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 4
- 238000006392 deoxygenation reaction Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000013589 supplement Substances 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
- 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
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model discloses a kind of power plant for self-supply of steel mill steady load measure systems, including a water system and secondary water system, water system and secondary water system constitute a power plant load stabilizing measures system, water system includes heat-accumulator tank, condense water- to-water heat exchanger, Heat Exchanger in Circulating Water System, circulating pump and electrode water boiler, water outlet on the electrode water boiler is fixedly connected by water-supply-pipe with one end of heat-accumulator tank, water inlet on the electrode water boiler is fixedly connected by setting water-supply-pipe with the water outlet of circulating pump, the water inlet of the circulating pump is fixedly connected by water-supply-pipe with one end of condensation water- to-water heat exchanger and Heat Exchanger in Circulating Water System.Electrode water boiler is heated furnace water using the electrode of connection three-phase high-voltage power supply, and electric energy is made to be converted to thermal energy, and the thermal efficiency with higher.
Description
Technical field
The utility model relates to steel mill's electric load system technical field, in particular to a kind of power plant for self-supply of steel mill steady load
Measure system.
Background technique
The gases such as coke-stove gas, the blast furnace gas that iron and steel enterprise generates during coking, ironmaking, use it as generating electricity
Fuel had not only been utilized these energy, but also has reduced environmental pollution, therefore domestic big-and-middle pair of the section steel works in these smelting processes
The fuel that product generates electricity as power plant for self-supply.
The power plant for self-supply of steel plant generally not with power system interconnection, even if networking, exchange capacity also very little.Steel mill is
Cost is reduced, is generally unwilling to network, but power plant for self-supply is required to have the function of isolated power grid.Due to iron and steel enterprise's process flow
The required electric load when closing a floodgate such as middle electric arc furnaces, milling train is uprushed, break lock when electric load anticlimax, increase and decrease amplitude is very big, and moment
Occur, this biggish periodic shock load, the conventional system and unit of power plant for self-supply are often difficult to realize safety and stability fortune
Row.
Under this impact load, speed-regulating system and bypath system to steam turbine propose very high requirement, more important
Be to generate and seriously threaten to service life of unit due to continually repeatedly thermal shock and the high-temperature metal fatigue that generates, safety
Property substantially reduces, it is difficult to realize the isolated network stable operation of power plant for self-supply.
Utility model content
The main purpose of the utility model is to provide a kind of power plant for self-supply of steel mill steady load measure systems, can be effective
Solve the problems in background technique.
To achieve the above object, the technical solution that the utility model is taken are as follows:
A kind of power plant for self-supply of steel mill steady load measure system, including a water system and secondary water system, it is described primary
Water system and secondary water system constitute a power plant load stabilizing measures system, and a water system includes heat-accumulator tank, condensation
Water- to-water heat exchanger, Heat Exchanger in Circulating Water System, circulating pump and electrode water boiler, the water outlet on the electrode water boiler pass through water delivery
Pipe is fixedly connected with one end of heat-accumulator tank, and the water inlet on the electrode water boiler is by setting the water outlet of water-supply-pipe and circulating pump
Mouth is fixedly connected, and the water inlet of the circulating pump is fixed by one end of water-supply-pipe and condensation water- to-water heat exchanger and Heat Exchanger in Circulating Water System
It connects, is fixedly installed with condensed water outlet pipe and condensed water inlet pipe, the Heat Exchanger in Circulating Water System respectively on the condensation water- to-water heat exchanger
Upper to be fixedly installed with recirculated water outlet pipe and recirculated water inlet pipe respectively, one end of the heat-accumulator tank is exchanged heat by water-supply-pipe and condensed water
Water inlet on device and Heat Exchanger in Circulating Water System is fixedly connected, the secondary water system include condenser, oxygen-eliminating device, condensate pump,
Gland heater and low-pressure heater, the recirculated water outlet pipe are fixedly connected with the water outlet on condenser, the recirculated water into
Pipe is fixedly connected with the water inlet on condenser, and one end of the condenser is connected with steam turbine, one end of the steam turbine
It is cooperatively connected, is fixedly connected by water-supply-pipe with one end of condensate pump on the condenser, the condensate pump with generator
Water outlet be fixedly connected with one end of gland heater, between the gland heater and low-pressure heater pass through water-supply-pipe connect
It connects, one end of the low-pressure heater is fixedly connected with oxygen-eliminating device.
Further, one end of the electrode water boiler is connected with three-phase high-voltage power supply.
Further, a water system is a closed circulation system of electrode water boiler.
Further, the water outlet on the gland heater passes through condensed water outlet pipe and the fixed company of condensation water- to-water heat exchanger
It connects, the water outlet on the condensation water- to-water heat exchanger is fixedly connected by condensed water inlet pipe with oxygen-eliminating device.
Further, the oxygen-eliminating device is equipped with multiple groups level control valve.
Further, it is connected in parallel between the Heat Exchanger in Circulating Water System and condensation water- to-water heat exchanger.
Compared with prior art, it the utility model has the following beneficial effects: the structure design of the utility model is reasonable, uses
The purpose of electrode water boiler is exactly that the load of the isolated network generating set of steel mill's private station is made to maintain one as much as possible surely
Electric arc furnaces, the rolling mill of fixed level, electrode water boiler and steel mill are all the electric load user of isolated power grid side by side, i.e., by electricity
Very hot homogeneous solution-type reactor absorb in electric arc furnaces, rolling mill power-off compared with when closing a floodgate reduction electric load, to reach steam turbine generator
The more stable load operation of group；Electrode water boiler is heated furnace water using the electrode of connection three-phase high-voltage power supply, turns electric energy
It is changed to thermal energy, and the thermal efficiency with higher.Electrode water boiler accepts the full capacity load of electric arc furnaces and rolling mill unloading, leads to
The quantity of circulating water of electrode water boiler is crossed to adjust, to meet the relevant loop parameter of electrode water boiler, power may be implemented
10%~100% continuously adjusts range；Water system and secondary water system are used in combination, and a water system is electrode hot water
One closed circulation system of boiler, it provides the circulation power of a water { demineralized water } using boiler water circulating pump, and demineralized water is made
To absorb the medium for being converted to thermal energy by electric energy in electrode water boiler, rejected heat in water-water heat exchanger secondary
Circulatory mediator-condensed water of circulation, to recycle most heat.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
Fig. 2 is the connection schematic diagram of the secondary water system of the utility model.
In figure: 1, a water system；2, secondary water system；3, heat-accumulator tank；4, water- to-water heat exchanger is condensed；5, recirculated water exchanges heat
Device；6, circulating pump；7, electrode water boiler；8, condensed water outlet pipe；9, condensed water inlet pipe；10, recirculated water outlet pipe；11, recirculated water
Inlet pipe；12, condenser；13, generator；14, steam turbine；15, oxygen-eliminating device；16, condensate pump；17, gland heater；18, low
Press heater.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
As shown in Figs. 1-2, a kind of power plant for self-supply of steel mill steady load measure system, including a water system 1 and secondary water
System 2, a water system 1 and secondary water system 2 constitute a power plant load stabilizing measures system, a water system
System 1 includes heat-accumulator tank 3, condensation water- to-water heat exchanger 4, Heat Exchanger in Circulating Water System 5, circulating pump 6 and electrode water boiler 7, the electrode
Water outlet on hot-water boiler 7 is fixedly connected by water-supply-pipe with one end of heat-accumulator tank 3, on the electrode water boiler 7 into
The mouth of a river is fixedly connected by setting water-supply-pipe with the water outlet of circulating pump 6, and the water inlet of the circulating pump 6 passes through water-supply-pipe and condensation
One end of water- to-water heat exchanger 4 and Heat Exchanger in Circulating Water System 5 is fixedly connected, and is fixedly installed with condensation respectively on the condensation water- to-water heat exchanger 4
Water outlet pipe 8 and condensed water inlet pipe 9, be fixedly installed on the Heat Exchanger in Circulating Water System 5 respectively recirculated water outlet pipe 10 and recirculated water into
One end of pipe 11, the heat-accumulator tank 3 is fixed by water-supply-pipe and the water inlet on condensation water- to-water heat exchanger 4 and Heat Exchanger in Circulating Water System 5
Connection, the secondary water system 2 include condenser 12, oxygen-eliminating device 15, condensate pump 16, gland heater 17 and low-pressure heater
18, the recirculated water outlet pipe 10 is fixedly connected with the water outlet on condenser 12, on the recirculated water inlet pipe 11 and condenser 12
Water inlet be fixedly connected, one end of the condenser 12 is connected with steam turbine 14, one end of the steam turbine 14 and power generation
Machine 13 is cooperatively connected, and is fixedly connected by water-supply-pipe with one end of condensate pump 16 on the condenser 12, the condensate pump
16 water outlet is fixedly connected with one end of gland heater 17, is passed through between the gland heater 17 and low-pressure heater 18
Water-supply-pipe connection, one end of the low-pressure heater 18 is fixedly connected with oxygen-eliminating device 15.
Wherein, one end of the electrode water boiler 7 is connected with three-phase high-voltage power supply.
Wherein, a water system 1 is a closed circulation system of electrode water boiler 7,7 benefit of electrode water boiler
Furnace water is heated with the electrode of connection three-phase high-voltage power supply, electric energy is made to be converted to thermal energy, and the thermal efficiency with higher.
Wherein, the water outlet on the gland heater 17 passes through condensed water outlet pipe 8 and the fixed company of condensation water- to-water heat exchanger 4
It connects, the water outlet on the condensation water- to-water heat exchanger 4 is fixedly connected by condensed water inlet pipe 9 with oxygen-eliminating device 15.
Wherein, the oxygen-eliminating device 15 is equipped with multiple groups level control valve, is removed with guaranteeing to be adjusted flexibly under various operating conditions
15 water level of oxygen device.
Wherein, it is connected in parallel between the Heat Exchanger in Circulating Water System 5 and condensation water- to-water heat exchanger 4.
It should be noted that the utility model is a kind of power plant for self-supply of steel mill steady load measure system, in use, electrode
The electrical power of hot-water boiler 7 is combined floodgate and the load operated a switch with steel-smelting electric furnace and rolling mill and is mutated, the variation of this moment
Amount wants 7 full dose of electrode water boiler to absorb, thus reach the safety and stability of steel mill's electric power isolated network, 7 electrical power of electrode water boiler
Variation caused by heat, be adjusted in a water system 1, the heat carried in a water system 1 is changed in recirculated water
It is exchanged and is absorbed with the adjusting of condensing capacity in hot device 5, needed when condensing capacity is unable to satisfy the heat exchange in a water system 1
It asks, the secondary water in secondary water system 2 carries out heat exchange supplement, is exchanged heat according to a water in a water system 1 by condensed water
The flow of device 4 or Heat Exchanger in Circulating Water System 5 carries out assignment of traffic, while the water level in order to guarantee Steam Turbine Regenerative System oxygen-eliminating device 15
It is required that oxygen-eliminating device 15 is equipped with multiple groups level control valve, to guarantee that 15 water level of oxygen-eliminating device can be adjusted flexibly under various operating conditions.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of power plant for self-supply of steel mill steady load measure system, including a water system (1) and secondary water system (2), special
Sign is: a water system (1) and secondary water system (2) constitute a power plant load stabilizing measures system, described primary
Water system (1) includes heat-accumulator tank (3), condensation water- to-water heat exchanger (4), Heat Exchanger in Circulating Water System (5), circulating pump (6) and electrode water bath
Furnace (7), the water outlet on the electrode water boiler (7) are fixedly connected by water-supply-pipe with one end of heat-accumulator tank (3), the electricity
Water inlet on very hot homogeneous solution-type reactor (7) is fixedly connected by setting water-supply-pipe with the water outlet of circulating pump (6), the circulating pump (6)
Water inlet be fixedly connected by water-supply-pipe with condensation water- to-water heat exchanger (4) and one end of Heat Exchanger in Circulating Water System (5), the condensed water
Condensed water outlet pipe (8) and condensed water inlet pipe (9) are fixedly installed on heat exchanger (4) respectively, is divided on the Heat Exchanger in Circulating Water System (5)
It is not fixedly installed with recirculated water outlet pipe (10) and recirculated water inlet pipe (11), one end of the heat-accumulator tank (3) by water-supply-pipe and is coagulated
The water inlet born water on heat exchanger (4) and Heat Exchanger in Circulating Water System (5) is fixedly connected, and the secondary water system (2) includes condenser
(12), oxygen-eliminating device (15), condensate pump (16), gland heater (17) and low-pressure heater (18), the recirculated water outlet pipe
(10) it is fixedly connected with the water outlet on condenser (12), the water inlet on the recirculated water inlet pipe (11) and condenser (12) is solid
Fixed connection, one end of the condenser (12) are connected with steam turbine (14), one end of the steam turbine (14) and generator
(13) it is cooperatively connected, is fixedly connected by water-supply-pipe with one end of condensate pump (16) on the condenser (12), the condensation
The water outlet of water pump (16) is fixedly connected with one end of gland heater (17), the gland heater (17) and low-pressure heater
(18) it is connected between by water-supply-pipe, one end of the low-pressure heater (18) is fixedly connected with oxygen-eliminating device (15).
2. a kind of power plant for self-supply of steel mill steady load measure system according to claim 1, it is characterised in that: the electrode
One end of hot-water boiler (7) is connected with three-phase high-voltage power supply.
3. a kind of power plant for self-supply of steel mill steady load measure system according to claim 1, it is characterised in that: described primary
Water system (1) is a closed circulation system of electrode water boiler (7).
4. a kind of power plant for self-supply of steel mill steady load measure system according to claim 1, it is characterised in that: the axle envelope
Water outlet on heater (17) is fixedly connected by condensed water outlet pipe (8) with condensation water- to-water heat exchanger (4), the condensed water heat exchange
Water outlet on device (4) is fixedly connected by condensed water inlet pipe (9) with oxygen-eliminating device (15).
5. a kind of power plant for self-supply of steel mill steady load measure system according to claim 1, it is characterised in that: the deoxygenation
Device (15) is equipped with multiple groups level control valve.
6. a kind of power plant for self-supply of steel mill steady load measure system according to claim 1, it is characterised in that: the circulation
It is connected in parallel between water- to-water heat exchanger (5) and condensation water- to-water heat exchanger (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820702864.1U CN208475614U (en) | 2018-05-11 | 2018-05-11 | A kind of power plant for self-supply of steel mill steady load measure system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820702864.1U CN208475614U (en) | 2018-05-11 | 2018-05-11 | A kind of power plant for self-supply of steel mill steady load measure system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208475614U true CN208475614U (en) | 2019-02-05 |
Family
ID=65221251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820702864.1U Expired - Fee Related CN208475614U (en) | 2018-05-11 | 2018-05-11 | A kind of power plant for self-supply of steel mill steady load measure system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208475614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812799A (en) * | 2019-02-12 | 2019-05-28 | 南京龙源环保有限公司 | A kind of quick load up system for thermal power plant |
-
2018
- 2018-05-11 CN CN201820702864.1U patent/CN208475614U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812799A (en) * | 2019-02-12 | 2019-05-28 | 南京龙源环保有限公司 | A kind of quick load up system for thermal power plant |
| CN109812799B (en) * | 2019-02-12 | 2023-10-20 | 国能龙源环保南京有限公司 | A quick load lifting system for thermal power plant |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |