CN210068256U - Structure for generating power by using low-quality steam turbine - Google Patents
Structure for generating power by using low-quality steam turbine Download PDFInfo
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- CN210068256U CN210068256U CN201920747818.8U CN201920747818U CN210068256U CN 210068256 U CN210068256 U CN 210068256U CN 201920747818 U CN201920747818 U CN 201920747818U CN 210068256 U CN210068256 U CN 210068256U
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- steam
- heating furnace
- coiled pipe
- superheater
- steam turbine
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- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 230000005611 electricity Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000725 suspension Substances 0.000 claims description 16
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- 239000002918 waste heat Substances 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
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- 229910052751 metal Inorganic materials 0.000 description 2
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Abstract
The utility model relates to a metallurgical industry field especially relates to low-quality steam turbine structure of generating electricity for steam. The structure comprises a heating furnace, wherein a coiled pipe superheater (3) is fixed on the side of the heating furnace, the inlet of the coiled pipe superheater (3) is connected with a steam inlet header (1), and the outlet of the coiled pipe superheater (3) is connected with a steam outlet header (2); the coiled pipe superheater (3) can heat steam inside by utilizing hot gas emitted by the heating furnace; the heated steam is led to a steam turbine (14), and the steam turbine (14) can drive a generator (15) to generate electricity; the steam-water separator also comprises a steam drum which is communicated with the steam inlet header (1) and can provide steam for the steam inlet header. The steam internal energy is converted into kinetic energy and further into electric energy to be output.
Description
Technical Field
The utility model relates to a metallurgical industry field especially relates to low-quality steam turbine structure of generating electricity for steam.
Background
In the metallurgical industry, furnaces are conventionally referred to as industrial furnaces that heat metal to a rolling forging temperature, including continuous furnaces and chamber furnaces. The heating furnace for heat treatment of metals is also called a heat treatment furnace. A furnace that heats or homogenizes the temperature inside a steel ingot before blooming is called a heating furnace.
In forging and rolling production, the billet is typically heated in an oxidizing atmosphere of a complete combustion flame. This heating method is called open flame or open flame type non-oxidizing heating, and is successfully applied to rotary hearth furnaces and chamber furnaces. The temperature in the furnace is generally about 1300 ℃, the periphery of the heating furnace is provided with a heat preservation furnace wall, and the furnace wall is easy to burn out due to too high temperature in the furnace, so that a water cooling wall is arranged in the furnace wall to reduce the temperature of the furnace wall and protect the furnace wall, namely, so-called vaporization cooling, softened water after vaporization cooling forms steam which is collected by a boiler steam drum, and the steam is used for central heating in northern areas, but at present, the steam generated by most enterprises is saturated steam. The steam quality is low, and the heat energy utilization rate is not high. At present, most enterprises directly discharge steam into the atmosphere, so that water sources are consumed, and energy is wasted.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is that: in order to provide a structure for generating power with a steam turbine for low-quality steam with a better effect, a specific object is to provide a plurality of substantial technical effects of the specific implementation section.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the structure for generating power by using the steam turbine for low-quality steam is characterized by comprising a heating furnace, wherein a coiled pipe superheater 3 is fixed on the side of the heating furnace, the inlet of the coiled pipe superheater 3 is connected with a steam inlet header 1, and the outlet of the coiled pipe superheater 3 is connected with a steam outlet header 2; the coiled pipe superheater 3 can heat steam inside by utilizing hot gas emitted by the heating furnace; the heated steam is led to the steam turbine 14, and the steam turbine 14 can drive the generator 15 to generate electricity; and the steam drum is communicated with the steam inlet header 1 and can provide steam for the steam inlet header.
The utility model discloses a further technical scheme lies in, still contains a bowl 4, and this bowl is the arc and this bowl covers the heating line of coiled pipe over heater 3 in the outside.
The utility model discloses a further technical scheme lies in, coiled pipe over heater 3 connect at the heating furnace avris through following arbitrary one kind mode: A. the coiled pipe superheater 3 is hung on the side by a hanging steel wire 8; B. the heating furnace retaining wall 9 at the side of the heating furnace is connected with a suspension bracket 10, the suspension bracket 10 is triangular, the suspension bracket is connected with a suspension structure downwards, the suspension structure is connected with the reflecting cover 4, and the coiled pipe superheater 3 is distributed inside the reflecting cover 4; C. the side of the heating furnace comprises a platform, and the coiled pipe superheater 3 is arranged on the platform.
The utility model discloses a further technical scheme lies in, scheme B in the suspended structure be the tube-shape, the structure of this tube-shape contains internal thread 12, the tip of the reinforcing bar of below can threaded connection in the internal thread, the reinforcing bar of below is connecting the bowl.
The utility model discloses a further technical scheme lie in, the bowl be adiabatic material.
Adopt above technical scheme the utility model discloses, for prior art have following beneficial effect: with reference to fig. 6, it should be noted that, when the steam turbine is used for generating electricity, which is undoubtedly the prior art, a set of steam superheater coil is added, and under the condition that the normal production of the heating furnace is not affected, most of the heat energy is utilized, so that the saturated steam is changed into superheated steam, and the steam quality is improved. The superheater is of a coiled pipe structure, a distribution header is designed at the air inlet end, an air collection header is also designed at the air outlet end, the number of the pipe bundles is specifically designed according to the steam yield of a user, and the superheater mainly has the functions of increasing the heat transfer area and improving the temperature of steam in the pipe. As a further preference, the steam inlet header 1 and the steam outlet header 2 each comprise a valve, which can be easily opened. Valve 1 is preferably an air inlet valve, which cuts off steam during maintenance. It is installed on the pipeline of steam inlet header 1 and the butt joint of coiled pipe superheater 3, and valve 2 is installed on the pipeline of steam outlet header 2 and the butt joint of coiled pipe superheater 3, and the exhaust valve cuts off steam during maintenance. The heating furnace is a large heat accumulator, the billet is heated in the combustion chamber by using combusted natural gas or other fuel gas, low-pressure steam generated by a waste heat boiler matched with the heating furnace is discharged outwards in the combustion process, a set of low-quality steam turbine power generation system is newly built in the factory of the company, and the steam internal energy is converted into kinetic energy by using a differential pressure turbine technology and then is converted into electric energy to be output.
Drawings
To further illustrate the present invention, further description is provided below with reference to the accompanying drawings:
FIG. 1 is a front view of the structure of the utility model;
FIG. 2 is a top view of the structure;
FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 4 is a schematic diagram of a third structure of the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an embodiment of the present invention;
FIG. 6 is a schematic structural view of a power generation part;
1. a steam inlet header; 2. a steam outlet header; 3. a serpentine superheater; 4. a reflector; 5. a connecting structure; 6. heating furnace; 7. a steam drum; 8. hanging steel wires; 9. retaining walls of the heating furnace; 10. a suspension bracket; 11. a hanging structure; 12. an internal thread; 13. a lower connecting structure; 14. a steam turbine; 15. an electric generator.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The patent provides a plurality of parallel schemes, and different expressions belong to an improved scheme based on a basic scheme or a parallel scheme. Each solution has its own unique features.
The structure for generating power by using the steam turbine for low-quality steam is characterized by comprising a heating furnace, wherein a coiled pipe superheater 3 is fixed on the side of the heating furnace, the inlet of the coiled pipe superheater 3 is connected with a steam inlet header 1, and the outlet of the coiled pipe superheater 3 is connected with a steam outlet header 2; the coiled pipe superheater 3 can heat steam inside by utilizing hot gas emitted by the heating furnace; the heated steam is led to the steam turbine 14, and the steam turbine 14 can drive the generator 15 to generate electricity; and the steam drum is communicated with the steam inlet header 1 and can provide steam for the steam inlet header. With reference to fig. 6, it should be noted that, when the steam turbine is used for generating electricity, which is undoubtedly the prior art, a set of steam superheater coil is added, and under the condition that the normal production of the heating furnace is not affected, most of the heat energy is utilized, so that the saturated steam is changed into superheated steam, and the steam quality is improved. The superheater is of a coiled pipe structure, a distribution header is designed at the air inlet end, an air collection header is also designed at the air outlet end, the number of the pipe bundles is specifically designed according to the steam yield of a user, and the superheater mainly has the functions of increasing the heat transfer area and improving the temperature of steam in the pipe. As a further preference, the steam inlet header 1 and the steam outlet header 2 each comprise a valve, which can be easily opened. Valve 1 is preferably an air inlet valve, which cuts off steam during maintenance. It is installed on the pipeline of steam inlet header 1 and the butt joint of coiled pipe superheater 3, and valve 2 is installed on the pipeline of steam outlet header 2 and the butt joint of coiled pipe superheater 3, and the exhaust valve cuts off steam during maintenance. The heating furnace is a large heat accumulator, the billet is heated in the combustion chamber by using combusted natural gas or other fuel gas, low-pressure steam generated by a waste heat boiler matched with the heating furnace is discharged outwards in the combustion process, a set of low-quality steam turbine power generation system is newly built in the factory of the company, and the steam internal energy is converted into kinetic energy by using a differential pressure turbine technology and then is converted into electric energy to be output.
The energy contained in the low-quality steam directly discharged and wasted by the user is recycled, and meanwhile, the steam is converted into condensed water and enters the waste heat boiler for recycling.
The method has the advantages of recycling the lost heat, generating power by using low-quality steam turbine equipment, and realizing energy conservation and emission reduction.
This patent can replace original stokehold heat direct loss to fall, passes through the steam turbine electricity generation with the steam that exhaust-heat boiler produced, and energy saving and emission reduction accords with international industry policy.
As a further illustration, a reflector 4 is included, which is curved and which covers the heating tubes of the serpentine superheater 3 on the outside.
The coiled pipe superheater 3 is connected to the side of the heating furnace in any one of the following modes: A. the coiled pipe superheater 3 is hung on the side by a hanging steel wire 8; the technical scheme of the invention has the following substantial technical effects and the realization process: scheme a referring to fig. 3, the fixing method of this embodiment is the simplest fixing method, and this embodiment is the second embodiment, in which the reflection cover 4 stands on the side.
B. The heating furnace retaining wall 9 at the side of the heating furnace is connected with a suspension bracket 10, the suspension bracket 10 is triangular, the suspension bracket is connected with a suspension structure downwards, the suspension structure is connected with the reflecting cover 4, and the coiled pipe superheater 3 is distributed inside the reflecting cover 4; the technical scheme of the invention has the following substantial technical effects and the realization process: scheme B referring to fig. 4, another specific implementation and structure is provided for the third embodiment. An implementation of the reflector 4 is provided herein, and similar implementations are within the scope of this patent.
C. The side of the heating furnace comprises a platform, and the coiled pipe superheater 3 is arranged on the platform. The technical scheme of the invention has the following substantial technical effects and the realization process: scheme C referring to fig. 5, which is a fourth embodiment, a specific implementation and structure is provided, which is substantially arranged at the edge side.
As a further description, the heating furnace itself is a large heat storage body, the billet is heated in the combustion chamber by using burning natural gas or other fuel gas, the billet is slowly transported and moved from front to back in the furnace, the stroke is generally 18-20 meters, the billet which is just entering is normal temperature, the billet is moved to the rear end, the billet is heated to a proper temperature, the billet enters the next process, the billet inlet is semi-open, in order to prevent the heat in the furnace from dissipating, the upper half part of the feed inlet is closed, the feed inlet of the lower half part is open, the feeding is convenient, but because the temperature in the furnace is too high, a small amount of radiant heat is dissipated from the feed inlet. The pendant steel wires, the hanging brackets and the platforms required to be fixed in the above embodiment are fixed on the outer side of the closed furnace wall.
The hanging structure in the scheme B is cylindrical, the cylindrical structure comprises an internal thread 12, the end part of the lower steel bar can be connected in the internal thread in a threaded mode, and the lower steel bar is connected with the reflecting cover. The reflector is made of heat insulation materials.
This patent utilizes stokehold high temperature radiant heat to rise exhaust-heat boiler saturated steam to superheated steam's equipment with the steam stripping, and this part heat of most steel billet manufacturing enterprises all does not utilize at present, and the useless waste falls.
The company develops a device for improving the quality of the saturated steam and the superheat degree of the steam based on the energy-saving and practical guiding thought, can effectively reduce the energy consumption, improves the steam temperature, and improves the superheat degree of the steam by utilizing the lost heat.
The serpentine heating pipe is arranged outside the heating furnace, absorbs lost waste heat, and ensures that the normal production of the main process of the heating furnace is not influenced. The reflector structure increases the heat absorption capacity of the system.
The heat recovery device has the advantages that the lost heat is recycled, the temperature of steam is increased through the coiled pipe heat exchanger, the quality of the steam is improved, coal consumption is saved, and the quality of the steam is improved.
This patent can replace original stokehold heat direct loss to fall, improves the steam quality with the waste heat, and energy saving and emission reduction accords with international industry policy.
Creatively, the above effects exist independently, and the combination of the above results can be completed by a set of structure.
The technical effect that above structure was realized realizes clearly, if do not consider additional technical scheme, this patent name can also be a heat utilization equipment. Some details are not shown in the figures.
It should be noted that the plurality of schemes provided in this patent include their own basic schemes, which are independent of each other and are not restricted to each other, but they may be combined with each other without conflict, so as to achieve a plurality of effects.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is to be limited to the embodiments described above.
Claims (5)
1. The structure for generating power by using the low-quality steam through the steam turbine is characterized by comprising a heating furnace, wherein a coiled pipe superheater (3) is fixed on the side of the heating furnace, the inlet of the coiled pipe superheater (3) is connected with a steam inlet header (1), and the outlet of the coiled pipe superheater (3) is connected with a steam outlet header (2); the coiled pipe superheater (3) can heat steam inside by utilizing hot gas emitted by the heating furnace; the heated steam is led to a steam turbine (14), and the steam turbine (14) can drive a generator (15) to generate electricity; the steam-water separator also comprises a steam drum which is communicated with the steam inlet header (1) and can provide steam for the steam inlet header.
2. The structure for generating electricity with a steam turbine of low quality steam according to claim 1, further comprising a reflection cover (4) which is arc-shaped and covers the heating duct of the serpentine superheater (3) on the outside.
3. The structure for generating electric power with a steam turbine using low-quality steam as set forth in claim 1, wherein said serpentine superheater (3) is connected to the side of the heating furnace by any one of: A. the coiled pipe superheater (3) is hung at the side by a hanging steel wire (8); B. the heating furnace retaining wall (9) at the side of the heating furnace is connected with a suspension bracket (10), the suspension bracket (10) is triangular, the suspension bracket is connected with a suspension structure downwards, the suspension structure is connected with the reflecting cover (4), and the coiled pipe superheater (3) is distributed inside the reflecting cover (4); C. the side of the heating furnace comprises a platform, and the coiled pipe superheater (3) is arranged on the platform.
4. The structure for generating power with a steam turbine using low-quality steam according to claim 3, wherein the hanging structure is a cylindrical structure including an internal thread (12) in which an end portion of a lower reinforcing bar can be screwed, and the lower reinforcing bar is connected to the reflection cover.
5. The structure for generating electricity in a steam turbine using low-quality steam as set forth in claim 3, wherein said reflection cover is made of a heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747818.8U CN210068256U (en) | 2019-05-23 | 2019-05-23 | Structure for generating power by using low-quality steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920747818.8U CN210068256U (en) | 2019-05-23 | 2019-05-23 | Structure for generating power by using low-quality steam turbine |
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| Publication Number | Publication Date |
|---|---|
| CN210068256U true CN210068256U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920747818.8U Expired - Fee Related CN210068256U (en) | 2019-05-23 | 2019-05-23 | Structure for generating power by using low-quality steam turbine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587086A (en) * | 2021-07-26 | 2021-11-02 | 宁波众茂杭州湾热电有限公司 | Boiler combustion box waste heat recovery device and recovery method |
-
2019
- 2019-05-23 CN CN201920747818.8U patent/CN210068256U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587086A (en) * | 2021-07-26 | 2021-11-02 | 宁波众茂杭州湾热电有限公司 | Boiler combustion box waste heat recovery device and recovery method |
| CN113587086B (en) * | 2021-07-26 | 2024-03-22 | 宁波众茂杭州湾热电有限公司 | Boiler combustion box waste heat recovery device and recovery method |
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Granted publication date: 20200214 |