CN113063296A - Double-station LF refining furnace water-cooled furnace cover water quantity control system and control method - Google Patents
Double-station LF refining furnace water-cooled furnace cover water quantity control system and control method Download PDFInfo
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- CN113063296A CN113063296A CN202110433007.2A CN202110433007A CN113063296A CN 113063296 A CN113063296 A CN 113063296A CN 202110433007 A CN202110433007 A CN 202110433007A CN 113063296 A CN113063296 A CN 113063296A
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- water
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- furnace cover
- cooled
- cooled furnace
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 238000007670 refining Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000003723 Smelting Methods 0.000 claims abstract description 30
- 239000000498 cooling water Substances 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims description 34
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/0018—Cooling of furnaces the cooling medium passing through a pattern of tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0056—Regulation involving cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Manufacture Of Iron (AREA)
Abstract
The invention relates to a water quantity control system and a water quantity control method for a water-cooled furnace cover of a double-station LF refining furnace. An adjusting valve is not arranged on each main water supply pipe of the furnace cover, so that safe water supply is ensured, and the furnace cover is prevented from being damaged after misoperation and water cut-off; the auxiliary adjusting water pipe is provided with the adjusting valve, so that the total flow of cooling water is reduced, the water-cooled furnace cover at each station is ensured to be cooled better during smelting under the condition of the same total water amount, and the service life of the refined water-cooled furnace cover is greatly prolonged.
Description
Technical Field
The invention belongs to the technical field of metallurgical equipment, and particularly relates to a water quantity control system and a water quantity control method for a water-cooling furnace cover of a double-station LF refining furnace.
Background
At present, a water-cooled furnace cover of a double-station LF refining furnace of a steel enterprise is provided with a water inlet header pipe connected with two main water supply pipes for respectively supplying water to the water-cooled furnace covers of the two station refining furnaces, dynamic regulation and distribution cannot be realized, the required cooling water amount is twice of that of a single furnace cover, and a water supply system is required to have large water amount and high energy consumption; because the water-cooled furnace cover of the double-station LF refining furnace cannot be in the highest temperature state of the electrified smelting at the same time, valves or regulating valves are directly added on water supply pipelines of each station by a single water supply system and are respectively regulated, once the valves or the regulating valves are closed by misoperation, the furnace cover is extremely easy to damage, and even malignant accidents are caused.
Disclosure of Invention
The invention aims to provide a water quantity control system and a water quantity control method for a water-cooled furnace cover of a double-station LF refining furnace, aiming at the problems that the cooling water quantity of the existing double-station LF refining water-cooled integral furnace cover is large, the water supply is insufficient, the water quantity distribution between double stations is unreasonable, and the safe dynamic adjustment cannot be realized.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a duplex position LF refining furnace water-cooling furnace lid water yield control system, includes inlet manifold, A station water-cooling furnace lid, B station water-cooling furnace lid, main delivery pipe, return water house steward, PLC controller, inlet manifold passes through two main delivery pipes and connects A station water-cooling furnace lid and B station water-cooling furnace lid respectively, and every main delivery pipe all parallel connection has an auxiliary adjusting water pipe, is equipped with the governing valve on the auxiliary adjusting water pipe, and A station water-cooling furnace lid and B station water-cooling furnace lid are connected with return water house steward through a plurality of return water branch pipes respectively, are equipped with return water temperature on the every return water branch pipe and detect the sensor, and return water temperature detects.
Furthermore, the main water supply pipe is respectively connected with the A station water-cooling furnace cover and the B station water-cooling furnace cover through a plurality of water inlet branch pipes.
The control method of the water quantity control system of the water-cooled furnace cover of the double-station LF refining furnace comprises the following steps:
1) when smelting is carried out at a smelting station in the double stations, a water-cooling furnace cover is matched with a main water supply pipe for water supply;
2) the smelting station water-cooled furnace covers in the station A water-cooled furnace cover and the station B water-cooled furnace cover are matched with each other to assist in adjusting the maximum opening of an adjusting valve on a water pipe;
3) the non-smelting station water-cooled furnace covers in the station A water-cooled furnace cover and the station B water-cooled furnace cover are matched with a main water supply pipe for water supply;
4) the non-smelting station water-cooled furnace covers in the station A water-cooled furnace cover and the station B water-cooled furnace cover are matched with an auxiliary regulating valve on a regulating water pipe to regulate the water quantity;
5) a backwater temperature detection sensor on each coil pipe backwater branch pipe of the smelting station water-cooled furnace cover in the station A water-cooled furnace cover and the station B water-cooled furnace cover detects backwater temperature change and feeds back a detection signal to the PLC;
6) the PLC adjusts the adjusting valve on the auxiliary adjusting water pipe matched with the non-smelting station water-cooled furnace cover according to a set program, and dynamically and uniformly controls the distribution of the cooling water between the smelting station water-cooled furnace cover and the non-smelting station water-cooled furnace cover, so that the optimal cooling effect is ensured.
The invention has the following beneficial effects: according to the double-station LF refining furnace water-cooling furnace cover, no regulating valve is arranged on each furnace cover main water supply pipe, so that safe water supply is ensured, and the furnace cover is prevented from being damaged after false operation and water cut-off; the auxiliary adjusting water pipe is provided with the adjusting valve, so that the total flow of the cooling water of the double-station LF refining furnace cover is reduced, the water-cooled furnace cover of each station is guaranteed to be cooled better during smelting under the condition of the same total water, the service life of the refining water-cooled furnace cover is prolonged greatly, and the purposes of energy conservation and low cost operation are achieved.
Drawings
FIG. 1 is a schematic structural diagram of a water quantity control system of a water-cooled furnace cover of a double-station LF refining furnace according to the present invention.
In the figure, the water cooling furnace comprises a water inlet main pipe 1, a water inlet main pipe 2, an adjusting valve 3, an auxiliary adjusting water pipe 4, a station A water cooling furnace cover 5, a return water temperature detection sensor 6, a main water supply pipe 7, a return water main pipe 8, a water inlet branch pipe 9, a return water branch pipe 10, a station B water cooling furnace cover 11 and a PLC controller.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the scope of the present invention is not limited to these examples. All changes, modifications and equivalents that do not depart from the spirit of the invention are intended to be included within the scope thereof.
As shown in figure 1, a duplex position LF refining furnace water-cooling furnace lid water yield control system, including inlet main 1, A station water-cooling furnace lid 4, B station water-cooling furnace lid 10, main delivery pipe 6, return water house steward 7, PLC controller 11, two main delivery pipes 6 are connected respectively to inlet main 1, and two main delivery pipes 6 are connected with A station water-cooling furnace lid 4 and B station water-cooling furnace lid 10 through a plurality of inlet branch pipes 8 respectively, and every main delivery pipe 6 all parallel connection has an auxiliary regulating water pipe 3, is equipped with governing valve 2 on the auxiliary regulating water pipe 3, and A station water-cooling furnace lid 4 and B station water-cooling furnace lid 10 are connected with return water house steward 7 through a plurality of return water branch pipes 9 respectively, are equipped with return water temperature detection sensor 5 on every return water branch pipe 9, and return water temperature detection sensor 5.
The control method of the water quantity control system of the water-cooled furnace cover of the double-station LF refining furnace comprises the following steps:
1) when smelting is carried out at a smelting station in the double stations, a water-cooling furnace cover is matched with a main water supply pipe for water supply;
2) the opening of an adjusting valve on a water pipe is adjusted to be maximum by matching the smelting station water-cooled furnace covers in the station A water-cooled furnace cover 4 and the station B water-cooled furnace cover 10;
3) the non-smelting station water-cooled furnace covers in the station A water-cooled furnace cover 4 and the station B water-cooled furnace cover 10 are matched with a main water supply pipe for water supply;
4) the water-cooled furnace covers at the non-smelting stations in the water-cooled furnace cover 4 at the station A and the water-cooled furnace cover 10 at the station B are matched with an auxiliary regulating valve on a regulating water pipe to regulate the water quantity;
5) a backwater temperature detection sensor on each coil backwater branch pipe of the smelting station water-cooled furnace cover in the station A water-cooled furnace cover 4 and the station B water-cooled furnace cover 10 detects backwater temperature change and feeds back a detection signal to the PLC;
6) the PLC adjusts the adjusting valve on the auxiliary adjusting water pipe matched with the non-smelting station water-cooled furnace cover according to a set program, and dynamically and uniformly controls the distribution of the cooling water between the smelting station water-cooled furnace cover and the non-smelting station water-cooled furnace cover, so that the optimal cooling effect is ensured.
The present invention is not limited to the above embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (3)
1. The utility model provides a duplex position LF refining furnace water-cooling furnace lid water yield control system, its characterized in that, including inlet manifold, A station water-cooling furnace lid, B station water-cooling furnace lid, main delivery pipe, return water house steward, PLC controller, inlet manifold passes through two main delivery pipes and connects A station water-cooling furnace lid and B station water-cooling furnace lid respectively, and every main delivery pipe all parallel connection has an auxiliary adjusting water pipe, is equipped with the governing valve on the auxiliary adjusting water pipe, and A station water-cooling furnace lid and B station water-cooling furnace lid are connected with return water house steward through a plurality of return water branch pipes respectively, are equipped with return water temperature on the every return water branch pipe and detect the sensor, and return water temperature.
2. The system for controlling the water amount of the water-cooled furnace cover of the double-station LF refining furnace as claimed in claim 1, wherein the main water supply pipe is connected with the water-cooled furnace cover of the station A and the water-cooled furnace cover of the station B through a plurality of water inlet branch pipes respectively.
3. The system for controlling the water amount of the water-cooled furnace cover of the double-station LF refining furnace as recited in claim 1, wherein the control method comprises the following steps:
1) when smelting is carried out at a smelting station in the double stations, a water-cooling furnace cover is matched with a main water supply pipe for water supply;
2) the smelting station water-cooled furnace covers in the station A water-cooled furnace cover and the station B water-cooled furnace cover are matched with each other to assist in adjusting the maximum opening of an adjusting valve on a water pipe;
3) the non-smelting station water-cooled furnace covers in the station A water-cooled furnace cover and the station B water-cooled furnace cover are matched with a main water supply pipe for water supply;
4) the non-smelting station water-cooled furnace covers in the station A water-cooled furnace cover and the station B water-cooled furnace cover are matched with an auxiliary regulating valve on a regulating water pipe to regulate the water quantity;
5) a backwater temperature detection sensor on each coil pipe backwater branch pipe of the smelting station water-cooled furnace cover in the station A water-cooled furnace cover and the station B water-cooled furnace cover detects backwater temperature change and feeds back a detection signal to the PLC;
6) the PLC adjusts the adjusting valve on the auxiliary adjusting water pipe matched with the non-smelting station water-cooled furnace cover according to a set program, and dynamically and uniformly controls the distribution of the cooling water between the smelting station water-cooled furnace cover and the non-smelting station water-cooled furnace cover, so that the optimal cooling effect is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110433007.2A CN113063296A (en) | 2021-04-22 | 2021-04-22 | Double-station LF refining furnace water-cooled furnace cover water quantity control system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110433007.2A CN113063296A (en) | 2021-04-22 | 2021-04-22 | Double-station LF refining furnace water-cooled furnace cover water quantity control system and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113063296A true CN113063296A (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110433007.2A Pending CN113063296A (en) | 2021-04-22 | 2021-04-22 | Double-station LF refining furnace water-cooled furnace cover water quantity control system and control method |
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| Country | Link |
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| CN (1) | CN113063296A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009025150A (en) * | 2007-07-19 | 2009-02-05 | Yokogawa Electric Corp | Water cooling type ic tester |
| CN203007315U (en) * | 2012-12-12 | 2013-06-19 | 南京钢铁股份有限公司 | Water pipe optimizing device of LF furnace equipment |
| CN203550609U (en) * | 2013-09-13 | 2014-04-16 | 登封电厂集团铝合金有限公司 | Water cooling plant for submerged arc furnace |
| CN206802008U (en) * | 2017-06-08 | 2017-12-26 | 河钢股份有限公司承德分公司 | A kind of LF stoves furnace cover lifting hydraulic cylinder cooling device |
| CN208366088U (en) * | 2017-11-13 | 2019-01-11 | 抚顺市德恒矿山机械有限公司 | A kind of circulating water pool |
-
2021
- 2021-04-22 CN CN202110433007.2A patent/CN113063296A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009025150A (en) * | 2007-07-19 | 2009-02-05 | Yokogawa Electric Corp | Water cooling type ic tester |
| CN203007315U (en) * | 2012-12-12 | 2013-06-19 | 南京钢铁股份有限公司 | Water pipe optimizing device of LF furnace equipment |
| CN203550609U (en) * | 2013-09-13 | 2014-04-16 | 登封电厂集团铝合金有限公司 | Water cooling plant for submerged arc furnace |
| CN206802008U (en) * | 2017-06-08 | 2017-12-26 | 河钢股份有限公司承德分公司 | A kind of LF stoves furnace cover lifting hydraulic cylinder cooling device |
| CN208366088U (en) * | 2017-11-13 | 2019-01-11 | 抚顺市德恒矿山机械有限公司 | A kind of circulating water pool |
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Application publication date: 20210702 |