CN212927209U - Blast furnace gas waste heat power generation main factory building - Google Patents
Blast furnace gas waste heat power generation main factory building Download PDFInfo
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- CN212927209U CN212927209U CN202020720199.6U CN202020720199U CN212927209U CN 212927209 U CN212927209 U CN 212927209U CN 202020720199 U CN202020720199 U CN 202020720199U CN 212927209 U CN212927209 U CN 212927209U
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Abstract
The utility model relates to a blast furnace gas waste heat power generation main building, including steam turbine room, deoxidization room and boiler room, adjacent setting is in the side of boiler room between steam turbine room and deoxidization room, steam turbine room and deoxidization room are linked together, the steam turbine room includes the first part of keeping away from the deoxidization room and is close to the second part of deoxidization room, the first part includes the steam turbine and connects condenser on the steam turbine, the second part includes condensate polishing device and the heater platform that sets gradually from keeping away from boiler room end to being close to boiler room end, the heater platform sets up in 4 ~ 6m away from the horizontal plane, be provided with bearing seal heater, low pressure feed water heater and high pressure feed water heater on the heater platform; the deaerating room comprises an electric water feeding pump arranged on a horizontal plane, and a deaerator and a sewage discharge flash tank are arranged in the deaerating room and are 12-14 m away from the horizontal plane. The boiler room, the steam turbine room, the deoxidizing room and the devices are compact in distribution and reasonable in layout, and the high-parameter small-sized unit is suitable for blast furnace gas waste heat power generation in the steel industry.
Description
Technical Field
The application relates to the technical field of gas power generation, in particular to a main power house for generating power by waste heat of blast furnace gas.
Background
Blast furnace gas, converter gas and coke oven gas are generated in the steel smelting process, wherein the blast furnace gas has the largest proportion, and the main components of the blast furnace gas are CO and CO2，H2，N2And the like, are important secondary energy sources. The blast furnace gas is effectively utilized, the energy consumption and the power generation cost of an enterprise can be reduced, additional benefits are provided for the enterprise, the resource allocation of the iron and steel enterprise is further optimized, and the market competitiveness of the enterprise is increased.
At present, the main utilization mode of blast furnace gas waste heat is to adopt a gas boiler for combustion, and the generated steam enters a steam turbine for power generation. The parameters of the unit are generally ultra-high temperature ultra-high pressure single reheating or ultra-high temperature subcritical single reheating, and the unit scale is generally 30-100 MW.
The steam turbine belongs to a small-sized steam turbine from the unit capacity, and belongs to a large-sized and medium-sized steam turbine from the unit parameter, so that the main plant layout has the characteristics of both the small-sized unit and the large-sized and medium-sized unit. But the design of the existing blast furnace gas waste heat power generation main factory building is not reasonable enough, and the occupied space is large.
SUMMERY OF THE UTILITY MODEL
The application provides a blast furnace gas waste heat power generation main plant to solve the problem of how to design the blast furnace gas waste heat power generation main plant more reasonably.
The technical scheme adopted by the application is as follows:
the utility model provides a blast furnace gas waste heat power generation main building, including steam turbine room, deoxidization room and boiler room, adjacent setting is in between steam turbine room and deoxidization the side in boiler room, just steam turbine room and deoxidization room are linked together, the steam turbine room includes the first part of keeping away from the deoxidization room and is close to the second part of deoxidization room, the first part includes the steam turbine and connects the condenser on the steam turbine, the second part includes from keeping away from the boiler room end to being close to condensate water finishing device and the heater platform that the boiler room end set gradually, the heater platform sets up in 4 ~ 6m away from the horizontal plane, be provided with bearing seal heater, at least one low pressure heater and at least one high pressure heater on the heater platform; including setting up the electronic feed pump on the horizontal plane between the deoxidization, set up deaerator and blowdown flash tank apart from 12 ~ 14m on the horizontal plane in the deoxidization room.
Further, the steam turbine room and the deoxidizing room are arranged on the side face of the boiler room in parallel, and the head of the steam turbine faces the boiler room.
Furthermore, the first part further comprises an overhaul site and a wire outlet chamber, wherein the overhaul site is arranged on one side, far away from the boiler room, of the steam turbine, the wire outlet chamber is close to the second part, and the overhaul site is located on one side, far away from the second part, of the wire outlet chamber.
Further, the first part also comprises a circulating water pipe pit and a condenser pit, the circulating water pipe pit is arranged between the overhaul site and the steam turbine and is used for arranging a circulating water pipeline of the condenser, the condenser pit is arranged between the outgoing line small chamber and the steam turbine and is used for arranging the condenser; the second part also comprises a condensate pump pit which is positioned between the condensate fine treatment device and the heater platform and is used for arranging a condensate pump.
Further, the deoxidization room comprises a third part far away from the boiler room, wherein the third part is an electric power distribution room communicated with the steam turbine room.
Further, still include the fourth part that is close to the boiler room between the deoxidization, be provided with on the horizontal plane of fourth part the electronic water-feeding pump, the fourth part is provided with electronic water-feeding pump maintenance space apart from 4 ~ 6m on the horizontal plane, the fourth part is provided with between battery chamber, centralized control room and the electronic equipment apart from 8 ~ 10m on the horizontal plane, the fourth part has arranged apart from 12 ~ 14m on the horizontal plane the deaerator with the blowdown flash tank.
Furthermore, a first stair is arranged on the opposite side of the steam turbine room far away from the deoxidizing bay, and the top of the first stair is communicated with the steam turbine room and is close to the upper part of the steam turbine; and a second stair is arranged between the third part and the fourth part and can lead to the positions 4-6 m, 8-10 m and 12-14 m of the fourth part.
Furthermore, a first inlet and outlet is formed in the opposite side, far away from the deoxidizing room, of the steam turbine room, and the first inlet and outlet is communicated with the overhaul field; at least one second inlet and outlet is formed between the second part of the steam turbine room and the electric power distribution room of the deoxidizing room; and at least one third inlet and outlet is arranged on the opposite side surface of the deoxidizing room far away from the steam turbine room, and the third inlet and outlet is communicated with the fourth part.
Furthermore, the system also comprises a main oil tank, an oil cooler and a duplex oil filter which are positioned on the first part and are respectively connected with the steam turbine.
Furthermore, the roof of the steam turbine room is provided with a crane beam, and a travelling crane is arranged on the crane beam.
The technical scheme of the application has the following beneficial effects:
the utility model discloses a blast furnace gas waste heat power generation main building, between boiler room, steam turbine room and deoxidization and between each device distribute compactly, rationally distributed. Simultaneously the utility model discloses:
(1) the high-parameter small-sized unit is suitable for generating power by waste heat of blast furnace gas in the steel industry.
(2) The occupied area of the steam turbine room and the deoxidizing room is small.
(3) The low-pressure water supply pipeline (a connecting pipeline between the deaerator and the electric water supply pump) is short, so the pressure drop is small.
(4) The four pipelines (the connecting pipeline between the boiler and the steam turbine, the pipeline of the main steam, the reheating hot section and the reheating cold section, and the connecting pipeline between the high-pressure heater and the boiler room, the high-pressure water supply pipeline) are shorter, and the pressure drop and the temperature drop are lower.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a structural layout diagram of a main plant;
FIG. 2 is a layout of 0m layers (horizontal plane) of a steam turbine room and an oxygen removal room;
FIG. 3 is a layout of 5m layers of a steam turbine room and an oxygen removal room;
fig. 4 is a cross-sectional layout of a steam turbine room and an oxygen removal room.
Illustration of the drawings:
wherein, 1-steam engine room: 11-a first part; 12-a second part; 13-a first staircase; 14-a first port; 15-crane beam; 16-driving;
111-a steam turbine; 112-a condenser; 113-circulating water pipe pit; 114-condenser pit; 115-outlet cells; 116-a service site; 117-main tank; 118-oil cooler; 119-duplex oil filter;
121-a condensate polishing device; 122-a high pressure heater; 123-shaft seal heater; 124-low pressure heater; 125-pump pit; 126-condensate pump;
2-oxygen removal: 21-third part; 22-fourth section; 23-a second staircase; 24-a second port; 25-a third inlet and outlet;
211-an electrical distribution room;
221-an electric feed pump; 222-a deaerator; 223-a blowdown flash tank; 224-a centralized control room; 225-cable interlayer; 226-service monorail;
3-boiler room;
4-channel.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.
Referring to fig. 1, a schematic structural diagram of a main power house of a blast furnace gas waste heat power generation main power house is shown;
FIG. 2 is a layout of 0m layers (horizontal plane) of a steam turbine room and an oxygen removal room; FIG. 3 is a layout of 5m layers of a steam turbine room and an oxygen removal room;
fig. 4 is a cross-sectional layout of a steam turbine room and an oxygen removal room.
The application provides a pair of blast furnace gas waste heat power generation main building, as shown in fig. 1, including steam turbine room 1, 2 and boiler room 3 between deoxidization, 2 adjacent 1 and the setting that is linked together in the side of boiler room 3 between steam turbine room 1 and deoxidization, 2 parallel arrangement between steam turbine room 1 and deoxidization, and have passageway 4 between 2 and the boiler room between steam turbine room 1 and deoxidization, 3 stokehold in boiler room face left, the stove back faces right, steam turbine 111's head is towards boiler room 3.
As shown in fig. 2 to 4, specifically:
the steam turbine room 1 comprises a first part 11 far away from the deoxidizing bay 2 and a second part 12 close to the deoxidizing bay 2, wherein the first part 11 comprises a steam turbine 111 and a condenser 112 connected to the steam turbine 111, the second part 12 comprises a condensed water fine treatment device 121 and a heater platform which are sequentially arranged from the end far away from the boiler room 3 to the end close to the boiler room 3, the heater platform is arranged 4-6 m away from the horizontal plane, and a shaft seal heater 123, at least one low-pressure heater 124 and at least one high-pressure heater 122 are arranged on the heater platform; the deoxygenation room 2 comprises an electric water feed pump 221 arranged on a horizontal plane, and a deoxygenator 222 and a sewage discharge flash tank 223 are arranged in the deoxygenation room 2 and are 12-14 m away from the horizontal plane;
the boiler room 3 is connected with a steam turbine 111 through a pipeline, the steam turbine 111 is connected with a condenser 112, the condenser 112 is connected with a condensate pump 126, the condensate pump 126 is connected with a condensate polishing device 121, the condensate polishing device 121 is connected with a shaft seal heater 123, the shaft seal heater 123 is connected with a low-pressure heater 124, the low-pressure heater 124 is connected with a deaerator 222, the deaerator 222 is connected with an electric water feed pump 221, the electric water feed pump 221 is connected with a high-pressure heater 122, and the high-pressure heater 122 is connected with a boiler of the boiler room 3; the blow-down flash tank 223 is connected to the boiler of the boiler room 3.
The first section 11 further comprises a service site 116 and a wire outlet cabinet 115 arranged on the side of the steam turbine 111 remote from the boiler room 3, the wire outlet cabinet 115 is close to the second section 12, and the service site 116 is arranged on the side of the wire outlet cabinet 115 remote from the second section 12. The overhaul site 116 is used for facilitating overhaul of the steam turbine 111 and other devices, and the outlet chamber 115 is used for arranging an outlet device of the generator distributed by the steam turbine 111.
The first part 11 further comprises a circulating water pipe pit 113 and a condenser pit 114, the circulating water pipe pit 113 is arranged between the overhaul site 116 and the steam turbine 111 and is used for arranging a circulating water pipeline connected with the condenser 112, the condenser 112 pit is arranged between the outgoing line small chamber 115 and the steam turbine 111, and the condenser 112 pit is used for arranging the condenser 112; the second section 12 further comprises a condensate sump 125, the condensate sump 125 being located between the condensate polishing device 121 and the heater platform and being configured to have a condensate pump 126, the condensate pump 126 being connected between the condenser 112 and the condensate polishing device 121.
The oxygen removal booth 2 includes a third section 21 remote from the boiler room 3, the third section 21 being an electrical distribution room 211 and the electrical distribution room 211 being in communication with the steam turbine room 1.
The deoxidizing room 2 further comprises a fourth part 22 close to the boiler room 3, an electric water-feeding pump 221 is arranged on the horizontal plane of the fourth part 22, an electric water-feeding pump 221 overhauling space is arranged on the fourth part 22 at a distance of 4-6 m from the horizontal plane, a storage battery chamber, a centralized control chamber 224 and an electronic equipment room are arranged on the fourth part 22 at a distance of 8-10 m from the horizontal plane, and a deaerator 222 and a sewage discharge flash tank 223 are arranged on the fourth part 22 at a distance of 12-14 m from the horizontal plane. In the present embodiment, the fourth part 22 of the deoxygenation room 2 has three floors, the battery room, the centralized control room 224 and the electronic devices are located on two floors 9m away from the horizontal plane, the deoxygenator 222 and the sewage expansion tank 223 are located on three floors 13.4 m away from the horizontal plane, the maintenance space of the electric feed pump 221 is located 5m away from the horizontal plane, as shown in fig. 4, a cable interlayer 225 is arranged at 7m of the fourth part 22 of the deoxygenation room 2, a maintenance monorail 226 is arranged below the cable interlayer 225, and the position below the maintenance monorail 226 is a maintenance space so as to facilitate maintenance of the electric feed pump 221 and the like. The storage battery in the storage battery chamber is used for supplying direct current to the steam turbine, and the centralized control chamber 224 is used for setting a control unit of the steam turbine 111.
A first stair 13 is arranged on the opposite side of the steam turbine room 1 far away from the deoxidizing bay 2, and the top of the first stair 13 is communicated with the steam turbine room 1 and is close to the upper part of the steam turbine 111; a second stair 23 is arranged between the third part 21 and the fourth part 22, and the second stair 23 can lead to 4-6 m, 8-10 m and 12-14 m of the fourth part 22.
A first inlet and outlet 14 is arranged on the opposite side of the steam turbine room 1 far away from the deoxidizing bay 2, and the first inlet and outlet 14 is communicated with the overhaul field 116; at least one second access 24 is arranged between the second part 12 of the steam turbine room 1 and the electric power distribution room 211 of the oxygen removing room 2; the opposite side of the removal compartment 2 from the steam turbine room 1 has at least one third inlet and outlet 25, the third inlet and outlet 25 being in communication with the fourth section 22.
And further comprises a main oil tank 117, an oil cooler 116 and a duplex oil filter 119 which are positioned in the first part 11 and are respectively connected with the steam turbine 111, wherein the main oil tank 117 is used for supplying lubricating oil to the steam turbine 111, and the oil cooler 116 and the duplex oil filter 119 are used for purifying and cooling the lubricating oil of the steam turbine 111.
The roof of the steam turbine room 1 has a crane beam 15, and the crane beam 15 is provided with a traveling crane 16 for adjusting and maintaining the steam turbine 111, the condensate pump 126, the shaft seal heater 123, the high pressure heater 122, the low pressure heater 124, and the like.
At least one side surface of the steam turbine room 1 is provided with a plurality of lighting windows, and the lighting windows are positioned on the opposite side of the steam turbine room 1 far away from the deoxidizing bay 2.
In this embodiment, the heater platform in the steam turbine room 1 is L-shaped, a vertical arm of the heater platform is fixed to the wind-resistant column of the steam turbine 111, and an end of a horizontal arm of the heater platform is fixed to the B-row column of the deoxidizing bay 2, specifically, the horizontal arm of the heater platform is disposed at a distance of 5m from the horizontal plane. Meanwhile, a shaft seal heater 123, three low pressure heaters 124 and three high pressure heaters 122 are provided on an arm of the heater platform that is horizontal.
The working flow of each device in this embodiment is as follows:
the boiler room 3 generates steam, and the steam enters a steam turbine 111 through a connecting pipeline to do work and generate electricity; after the steam works in the turbine 111, the steam enters the condenser 112 to be condensed into water, which is called as condensed water; the condensed water is pressurized by a condensed water pump 126, enters a condensed water fine treatment device 121, is heated by a shaft seal heater 123 and a low-pressure heater 124 and then enters a deaerator 222, the water discharged from the deaerator 222 is pressurized by an electric water feed pump 221, enters a high-pressure heater 122 for heating, and then enters a boiler of a boiler room 3 to be heated into steam;
after the sewage of the boiler enters the continuous sewage flash tank 223, the exhaust steam enters the deaerator 222 for recovery, and the drainage water enters the fixed-discharge flash tank and then is discharged to the fixed-discharge well.
The beneficial effect of this embodiment does:
(1) the high-parameter small-sized unit is suitable for generating power by waste heat of blast furnace gas in the steel industry.
(2) The occupied areas of the steam turbine room 1 and the deoxidizing room 2 are small.
(3) The low-pressure feed water pipe (the connecting pipe between the deaerator 222 and the motor-driven feed water pump 221) is short, so the pressure drop is small.
(4) The distribution among all devices is compact, the layout is reasonable, so that four pipelines (a connecting pipeline between the boiler and the steam turbine 111, namely a main steam pipeline, a reheating hot section pipeline and a reheating cold section pipeline, and a connecting pipeline between the high-pressure heater 122 and the boiler room 3, namely a high-pressure water supply pipeline) are shorter, and the pressure drop and the temperature drop are lower. The main steam section refers to a pipeline from an outlet of a boiler superheater to an inlet of a high-pressure cylinder of the steam turbine, the reheating cold section refers to a pipeline from exhaust of the high-pressure cylinder of the steam turbine to an inlet of a boiler reheater, and the reheating hot section refers to a pipeline from an outlet of the boiler reheater to an inlet of a low-pressure cylinder of the steam turbine.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (10)
1. The utility model provides a blast furnace gas waste heat power generation main building, includes between steam turbine room, deoxidization and boiler room, adjacent setting is in between steam turbine room and deoxidization the side in boiler room, just be linked together its characterized in that between steam turbine room and deoxidization:
the steam turbine room comprises a first part far away from the deoxidizing room and a second part close to the deoxidizing room, the first part comprises a steam turbine and a condenser connected to the steam turbine, the second part comprises a condensed water fine treatment device and a heater platform which are sequentially arranged from the end far away from the boiler room to the end close to the boiler room, the heater platform is arranged 4-6 m away from the horizontal plane, and a shaft seal heater, at least one low-pressure heater and at least one high-pressure heater are arranged on the heater platform;
including setting up the electronic feed pump on the horizontal plane between the deoxidization, set up deaerator and blowdown flash tank apart from 12 ~ 14m on the horizontal plane in the deoxidization room.
2. The main power plant for blast furnace gas waste heat power generation according to claim 1, characterized in that: the steam turbine room and the deoxidizing room are arranged on the side face of the boiler room in parallel, and the head of the steam turbine faces the boiler room.
3. The main power plant for blast furnace gas waste heat power generation according to claim 2, characterized in that: the first part further comprises an overhaul site and a wire outlet chamber, wherein the overhaul site is arranged on one side, far away from the boiler room, of the steam turbine, the wire outlet chamber is close to the second part, and the overhaul site is located on one side, far away from the second part, of the wire outlet chamber.
4. The main power plant for blast furnace gas waste heat power generation according to claim 3, characterized in that: the first part also comprises a circulating water pipe pit and a condenser pit, the circulating water pipe pit is arranged between the overhaul site and the steam turbine and is used for arranging a circulating water pipe of the condenser, the condenser pit is arranged between the outgoing line small chamber and the steam turbine and is used for arranging the condenser; the second part also comprises a condensate pump pit which is positioned between the condensate fine treatment device and the heater platform and is used for arranging a condensate pump.
5. The main power plant for blast furnace gas waste heat power generation according to claim 3 or 4, characterized in that: the third part of keeping away from the boiler room is included between the deoxidization, the third part be electric distribution room just electric distribution room with the steam turbine room is linked together.
6. The main power plant for blast furnace gas waste heat power generation according to claim 5, characterized in that: still including the fourth part that is close to the boiler room between the deoxidization, be provided with on the horizontal plane of fourth part the motor-driven water-feeding pump, the fourth part is provided with motor-driven water-feeding pump maintenance space apart from 4 ~ 6m on the horizontal plane, the fourth part is provided with between battery room, centralized control room and the electronic equipment apart from 8 ~ 10m on the horizontal plane, the fourth part has arranged apart from 12 ~ 14m on the horizontal plane the oxygen-eliminating device with the blowdown flash tank.
7. The main power plant for blast furnace gas waste heat power generation according to claim 6, characterized in that: a first stair is arranged on the opposite side of the steam turbine room far away from the deoxidizing room, and the top of the first stair is communicated with the steam turbine room and is close to the upper part of the steam turbine; and a second stair is arranged between the third part and the fourth part and can lead to the positions 4-6 m, 8-10 m and 12-14 m of the fourth part.
8. The main power plant for blast furnace gas waste heat power generation according to claim 6, characterized in that: a first inlet and outlet is formed in the opposite side of the steam turbine room, which is far away from the deoxidizing room, and the first inlet and outlet is communicated with the overhaul field; at least one second inlet and outlet is formed between the second part of the steam turbine room and the electric power distribution room of the deoxidizing room; and at least one third inlet and outlet is arranged on the opposite side surface of the deoxidizing room far away from the steam turbine room, and the third inlet and outlet is communicated with the fourth part.
9. The main power plant for blast furnace gas waste heat power generation according to claim 1, characterized in that: the system also comprises a main oil tank, an oil cooler and a duplex oil filter which are positioned on the first part and are respectively connected with the steam turbine.
10. The main power plant for blast furnace gas waste heat power generation according to claim 1, characterized in that: the roof of the steam turbine room is provided with a crane beam, and a travelling crane is arranged on the crane beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020720199.6U CN212927209U (en) | 2020-05-06 | 2020-05-06 | Blast furnace gas waste heat power generation main factory building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020720199.6U CN212927209U (en) | 2020-05-06 | 2020-05-06 | Blast furnace gas waste heat power generation main factory building |
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| CN212927209U true CN212927209U (en) | 2021-04-09 |
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| CN202020720199.6U Active CN212927209U (en) | 2020-05-06 | 2020-05-06 | Blast furnace gas waste heat power generation main factory building |
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