CN210486533U - Waste heat recovery device of steel rolling heating furnace - Google Patents
Waste heat recovery device of steel rolling heating furnace Download PDFInfo
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- CN210486533U CN210486533U CN201921350434.9U CN201921350434U CN210486533U CN 210486533 U CN210486533 U CN 210486533U CN 201921350434 U CN201921350434 U CN 201921350434U CN 210486533 U CN210486533 U CN 210486533U
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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a waste heat recovery device of a steel rolling heating furnace.A heat exchange water tank is fixed in a heat exchange chamber, and a gas heat exchange cavity is formed between the outer wall of the heat exchange water tank and the inner wall of the heat exchange chamber; the gas heat exchange cavity is connected with an air blower through a cold air pipe, is communicated with a steel rolling heating furnace through a smoke exhaust pipeline and is communicated with the steel rolling heating furnace through a hot air circulating pipe; the heat exchange water tank is communicated with a cold water storage tank through a cold water pipe and a hot water storage tank through a hot water pipe, and the cold water pipe and the hot water pipe penetrate through the wall of the gas heat exchange cavity and are connected with the cold water storage tank and the hot water storage tank in a one-to-one correspondence manner; the heat energy power generation structure is connected with the smoke exhaust pipeline. The utility model discloses a steel rolling heating furnace waste heat recovery device, not only simple structure, volume are less, and is higher to steel rolling heating furnace's waste heat utilization ratio moreover.
Description
Technical Field
The utility model relates to an energy-conserving technical field of steel manufacturing industry, more specifically the utility model relates to a steel rolling heating furnace waste heat recovery device that says so.
Background
In the smelting processes of iron and steel enterprises, the steel rolling process is a very important link in the production flow of iron and steel, and a primary rolling billet or a continuous casting billet is reheated by a steel rolling heating furnace so as to meet the requirement of equipment for rolling required temperature. The heating furnace is also the largest energy-using device in the steel rolling process, so the energy conservation of the steel rolling heating furnace has important promotion effect on the steel rolling process and the energy conservation and consumption reduction work of the whole steel mill.
But the prior device for recovering the waste heat of the steel rolling heating furnace is complex and has low efficiency for recovering and utilizing the waste heat.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least.
In view of this, the utility model provides a steel rolling heating furnace waste heat recovery device, not only simple structure, volume are less, and are higher to steel rolling heating furnace's waste heat utilization ratio moreover.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a waste heat recovery device of a steel rolling heating furnace comprises a heat exchange chamber and a heat energy power generation structure;
a heat exchange water tank is fixed in the heat exchange chamber, and a gas heat exchange cavity is formed between the outer wall of the heat exchange water tank and the inner wall of the heat exchange chamber;
the gas heat exchange cavity is connected with an air blower through a cold air pipe, is communicated with a steel rolling heating furnace through a smoke exhaust pipeline and is communicated with the steel rolling heating furnace through a hot air circulating pipe;
the heat exchange water tank is communicated with a cold water storage tank through a cold water pipe and a hot water storage tank through a hot water pipe, and the cold water pipe and the hot water pipe penetrate through the wall of the gas heat exchange cavity and are connected with the cold water storage tank and the hot water storage tank in a one-to-one correspondence manner;
the heat energy power generation structure is connected with the smoke exhaust pipeline.
The utility model discloses be fixed with heat exchange water tank in the heat exchange chamber to make and form gas heat transfer cavity between heat exchange water tank's outer wall and the inner wall of heat exchange chamber, thereby the flue gas is discharged into the heat exchange chamber in from the steel rolling heating furnace through the exhaust pipe after, the waste heat in the flue gas not only can be absorbed by heat exchange water tank, makes the cold water that gets into to heat exchange water tank through the cold water pipe heat into hot water, and the hot water that heats can be discharged to the hot water storage tank through the hot-water line and is saved; in addition, because the cold air is input into the gas heat exchange cavity through the cold air pipe, the waste heat in the flue gas and the input cold air can exchange heat in the gas heat exchange cavity, and the exchanged hot gas can be recycled in the steel rolling heating furnace through the hot gas circulating pipe; and simultaneously, because the utility model discloses be connected with heat energy power generation structure on the exhaust pipe, can also make the heat energy that transmits to on the exhaust pipe pass through heat energy power generation structure and convert the electric energy into and use for people.
To sum up, the utility model discloses a fixed heat transfer water tank in the heat exchange chamber to make and form gaseous heat transfer cavity between heat transfer water tank's the outer wall and the inner wall of heat exchange chamber, and be connected with heat energy power generation structure on the exhaust pipe, alright carry out multiple utilization with the waste heat that releases the steel rolling heating furnace, thereby not only make the utility model discloses simple structure, volume are less, have improved the utilization ratio to the steel rolling heating furnace release waste heat moreover.
Preferably, the hot gas circulation pipe is connected with one end of the steel rolling heating furnace and is provided with a nozzle, so that the hot gas injection efficiency is improved.
Preferably, sealing parts are arranged between the cold water pipe and the hot water pipe and the wall of the gas heat exchange cavity, so that hot gas formed in the gas heat exchange cavity is prevented from leaking from mounting gaps between the wall of the gas heat exchange cavity and the cold water pipe and between the wall of the hot water pipe and the wall of the gas heat exchange cavity, and the utilization rate of the waste heat of the steel rolling heating furnace can be further improved.
Preferably, the cold water pipe the hot-water line and all be connected with the control valve on the steam circulating pipe to can control respectively through the cold water pipe get into heat exchange water tank's cold water entering volume, through the hot water pipe exhaust hot water yield, and the control enters into the steam volume to the steel rolling heating furnace through the steam circulating pipe, do benefit to and maintain the utility model discloses a balance of work between waste heat recovery device and the steel rolling heating furnace.
Preferably, a filter is fixed on the inner wall of the gas heat exchange cavity, gas in the gas heat exchange cavity enters the hot gas circulation pipe through the filter, and smoke in the smoke exhaust pipe and air in the cold air pipe both enter the gas heat exchange cavity through the filter.
The utility model discloses a filter can be respectively to get into the flue gas in the gas heat transfer cavity through exhaust pipe and to get into through the cold wind pipe and filter the edulcoration to the air that gets into in the gas heat transfer cavity to form the poison material of steam in the reduction gas heat transfer cavity, simultaneously, the utility model discloses steam in the gas heat transfer cavity passes through the filter and gets into to the steam circulating pipe in, thereby can further reduce impurity and poison the material in the heat energy that is arranged in reuse in getting into the steel rolling heating furnace, not only can make the steel rolling heating furnace normally work, the energy saving, and can reduce environmental pollution.
Preferably, the filter comprises a lime adsorption layer, an activated carbon adsorption layer, a soil filtration layer and a sodium hydroxide adsorption layer.
The utility model discloses a oxysulfide in the lime adsorbed layer absorption flue gas can adsorb the granule in the flue gas through the active carbon adsorbed layer, can filter the nitrogen oxide in the flue gas through the soil filter layer, can absorb the acid gas in the flue gas through the sodium hydroxide absorbed layer.
Preferably, the thermal power generation structure comprises a fluid circulation pipe, a feed water pump, a steam generator, a steam turbine and a generator;
the fluid circulating pipe is wound on the outer wall of the smoke exhaust pipeline, the water feeding pump, the steam generator and the steam turbine are respectively communicated with the fluid circulating pipe, meanwhile, the steam turbine is connected with the generator, and the steam generator is further communicated with a water inlet pipe.
The utility model discloses a wind the fluid circulation pipe on establishing exhaust pipe's outer wall, consequently can heat the fluid circulation pipe through the heat energy on the exhaust pipe to can make and enter into the water thermal evaporation to the fluid circulation pipe in through the inlet tube, and form vapor under steam generator's effect, and vapor passes through the work of steam turbine drive generator, thereby the utility model discloses the waste heat conversion that can utilize the steel rolling heating furnace to produce can be for the electric energy of utilization.
Preferably, the cold water pipe is provided with a hydraulic pump for pumping the cold water in the cold water storage tank to the cold water storage tank.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a steel rolling heating furnace waste heat recovery device can realize following technological effect:
the utility model discloses be fixed with heat exchange water tank in the heat exchange chamber to make and form gas heat transfer cavity between heat exchange water tank's outer wall and the inner wall of heat exchange chamber, thereby the flue gas is discharged into the heat exchange chamber in from the steel rolling heating furnace through the exhaust pipe after, the waste heat in the flue gas not only can be absorbed by heat exchange water tank, makes the cold water that gets into to heat exchange water tank through the cold water pipe heat into hot water, and the hot water that heats can be discharged to the hot water storage tank through the hot-water line and is saved; in addition, because the cold air is input into the gas heat exchange cavity through the cold air pipe, the waste heat in the flue gas and the input cold air can exchange heat in the gas heat exchange cavity, and the exchanged hot gas can be recycled in the steel rolling heating furnace through the hot gas circulating pipe; and simultaneously, because the utility model discloses be connected with heat energy power generation structure on the exhaust pipe, can also make the heat energy that transmits to on the exhaust pipe pass through heat energy power generation structure and convert the electric energy into and use for people.
To sum up, the utility model discloses a fixed heat transfer water tank in the heat exchange chamber to make and form gaseous heat transfer cavity between heat transfer water tank's the outer wall and the inner wall of heat exchange chamber, and be connected with heat energy power generation structure on the exhaust pipe, alright carry out multiple utilization with the waste heat that releases the steel rolling heating furnace, thereby not only make the utility model discloses simple structure, volume are less, have improved the utilization ratio to the steel rolling heating furnace release waste heat moreover.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the structure principle of the waste heat recovery device of the steel rolling heating furnace of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature being "under," "beneath," and "under" the second feature includes the first feature being directly under and obliquely under the second feature, or merely means that the first feature is at a lesser level than the second feature
In view of this, the utility model provides a steel rolling heating furnace waste heat recovery device, not only simple structure, volume are less, and are higher to steel rolling heating furnace's waste heat utilization ratio moreover.
The embodiment of the utility model discloses a waste heat recovery device of a steel rolling heating furnace, which comprises a heat exchange chamber 1 and a heat energy power generation structure;
wherein, a heat exchange water tank 2 is fixed in the heat exchange chamber 1, and a gas heat exchange cavity 12 is formed between the outer wall of the heat exchange water tank 2 and the inner wall of the heat exchange chamber 1;
the gas heat exchange cavity 12 is connected with an air blower 102 through a cold air pipe 101, is communicated with a steel rolling heating furnace 104 through a smoke exhaust pipe 103, and is communicated with the steel rolling heating furnace 104 through a hot air circulating pipe 106;
the heat exchange water tank 2 is communicated with a cold water storage tank 202 through a cold water pipe 201 and a hot water storage tank 204 through a hot water pipe 203 respectively, and the cold water pipe 201 and the hot water pipe 203 penetrate through the cavity wall of the gas heat exchange cavity 12 and are connected with the cold water storage tank 202 and the hot water storage tank 204 in a one-to-one correspondence manner;
the thermal power generation structure is connected with the smoke exhaust pipeline 103.
In order to further optimize the above technical solution, the hot gas circulation pipe 106 has a nozzle at one end connected to the steel rolling heating furnace 104.
In order to further optimize the technical scheme, sealing elements are arranged between the cold water pipe 201 and the hot water pipe 203 and the wall of the gas heat exchange cavity 12.
In order to further optimize the above technical solution, control valves are connected to the cold water pipe 201, the hot water pipe 203 and the hot air circulation pipe 106.
In order to further optimize the technical scheme, a filter 7 is fixed on the inner wall of the gas heat exchange cavity 12, gas in the gas heat exchange cavity 12 enters the hot gas circulation pipe 106 through the filter 7, and smoke in the smoke exhaust pipe 103 and air in the cold air pipe 101 enter the gas heat exchange cavity 12 through the filter 7.
In order to further optimize the technical scheme, the filter 7 comprises a lime adsorption layer, an activated carbon adsorption layer, a soil filtration layer and a sodium hydroxide adsorption layer.
In order to further optimize the above technical solution, the thermal power generation structure includes a fluid circulation pipe 31, a feed water pump 32, a steam generator 33, a steam turbine 34, and a generator 35;
the fluid circulation pipe 31 is wound on the outer wall of the smoke exhaust pipe 103, the fluid circulation pipe 31 is respectively communicated with a water feeding pump 32, a steam generator 33 and a steam turbine 34, the steam turbine 34 is connected with a generator 35, and the steam generator 33 is also communicated with a water inlet pipe.
In order to further optimize the above technical solution, the cold water pipe 201 is provided with a hydraulic pump.
Example (b):
the utility model discloses be fixed with heat exchange water tank 2 in heat exchange chamber 1 to make and form gas heat transfer cavity 12 between heat exchange water tank 2's outer wall and the inner wall of heat exchange chamber 1, thereby the flue gas is discharged into heat exchange chamber 1 from steel rolling heating furnace 104 through exhaust pipe 103 after, the waste heat in the flue gas not only can be absorbed by heat exchange water tank 2, make the cold water that gets into to heat exchange water tank 2 through cold water pipe 201 heated into hot water, the hot water that heats up can be discharged to hot water storage tank 204 through hot-water line 203 and is stored; in addition, because the gas heat exchange cavity 12 of the present invention inputs cold air through the cold air pipe 101, the waste heat in the flue gas and the input cold air can exchange heat in the gas heat exchange cavity 12, and the exchanged hot gas can be returned to the steel rolling heating furnace 104 through the hot gas circulation pipe 106 to be reused;
furthermore, the utility model discloses a filter 7 can be respectively to through the flue gas that the exhaust pipe 103 got into in the gas heat transfer cavity 12 and to through the cold air pipe 101 entering to the air that gets into in the gas heat transfer cavity 12 filter the edulcoration, in order to reduce the poison material that forms steam in the gas heat transfer cavity 12, simultaneously, the utility model discloses steam in the gas heat transfer cavity 12 gets into in the hot gas circulating pipe 106 through filter 7, thereby can further reduce impurity and poison material in the heat energy that gets into in the steel rolling heating furnace 104 for reuse, not only can make the steel rolling heating furnace 104 normally work, the energy saving, and can reduce environmental pollution;
and simultaneously, because the utility model discloses be connected with heat energy power generation structure on exhaust pipe 103, with fluid circulation pipe 31 around establishing on exhaust pipe 103's outer wall, consequently can heat fluid circulation pipe 31 through the heat energy on the exhaust pipe 103 to can make and get into the hydrothermal evaporation to fluid circulation pipe 31 in through the inlet tube, and form vapor under steam generator 33's effect, and vapor passes through turbine 34 drive generator work, thereby the utility model discloses the waste heat conversion that can utilize steel rolling heating furnace 104 to produce can be for the electric energy of human utilization.
To sum up, the utility model discloses a fixed heat transfer water tank 2 in heat exchange chamber 1 to make and form gaseous heat transfer cavity 12 between heat transfer water tank 2's the outer wall and the inner wall of heat exchange chamber 1, and be connected with heat energy power generation structure on exhaust pipe 103, alright carry out multiple utilization with the waste heat with steel rolling heating furnace 104 release, thereby not only make the utility model discloses simple structure, volume are less, have improved the utilization ratio to steel rolling heating furnace 104 release waste heat moreover.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The waste heat recovery device of the steel rolling heating furnace is characterized by comprising a heat exchange chamber (1) and a heat energy power generation structure;
wherein a heat exchange water tank (2) is fixed in the heat exchange chamber (1), and a gas heat exchange cavity (12) is formed between the outer wall of the heat exchange water tank (2) and the inner wall of the heat exchange chamber (1);
the gas heat exchange cavity (12) is connected with an air blower (102) through a cold air pipe (101), is communicated with a steel rolling heating furnace (104) through a smoke exhaust pipeline (103), and is communicated with the steel rolling heating furnace (104) through a hot air circulating pipe (106);
the heat exchange water tank (2) is communicated with a cold water storage tank (202) through a cold water pipe (201) and is communicated with a hot water storage tank (204) through a hot water pipe (203), and the cold water pipe (201) and the hot water pipe (203) penetrate through the wall of the gas heat exchange cavity (12) and are connected with the cold water storage tank (202) and the hot water storage tank (204) in a one-to-one correspondence manner;
the thermal energy power generation structure is connected with the smoke exhaust pipeline (103).
2. The waste heat recovery device of the steel rolling heating furnace according to claim 1, characterized in that a sealing member is arranged between each of the cold water pipe (201) and the hot water pipe (203) and the wall of the gas heat exchange cavity (12).
3. The waste heat recovery device of the steel rolling heating furnace according to claim 1, wherein control valves are connected to the cold water pipe (201), the hot water pipe (203) and the hot gas circulation pipe (106).
4. The waste heat recovery device of the steel rolling heating furnace according to claim 3, wherein a filter (7) is fixed on the inner wall of the gas heat exchange cavity (12), gas in the gas heat exchange cavity (12) enters the hot gas circulation pipe (106) through the filter (7), and flue gas in the smoke exhaust pipe (103) and air in the cold air pipe (101) both enter the gas heat exchange cavity (12) through the filter (7).
5. The waste heat recovery device of the steel rolling heating furnace according to claim 4, wherein the filter (7) comprises a lime adsorption layer, an activated carbon adsorption layer, a soil filtration layer and a sodium hydroxide adsorption layer.
6. The waste heat recovery device of a steel rolling heating furnace according to any one of claims 1 to 5, wherein the thermal energy power generation structure comprises a fluid circulation pipe (31), a feed water pump (32), a steam generator (33), a steam turbine (34) and a generator (35);
the fluid circulation pipe (31) is wound on the outer wall of the smoke exhaust pipe (103), the fluid circulation pipe (31) is respectively communicated with the water feeding pump (32), the steam generator (33) and the steam turbine (34), the steam turbine (34) is connected with the power generator (35), and the steam generator (33) is further communicated with a water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921350434.9U CN210486533U (en) | 2019-08-20 | 2019-08-20 | Waste heat recovery device of steel rolling heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921350434.9U CN210486533U (en) | 2019-08-20 | 2019-08-20 | Waste heat recovery device of steel rolling heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210486533U true CN210486533U (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921350434.9U Active CN210486533U (en) | 2019-08-20 | 2019-08-20 | Waste heat recovery device of steel rolling heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210486533U (en) |
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2019
- 2019-08-20 CN CN201921350434.9U patent/CN210486533U/en active Active
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