CN211015794U - Alarm control device for cooling water flow difference of electric arc furnace - Google Patents
Alarm control device for cooling water flow difference of electric arc furnace Download PDFInfo
- Publication number
- CN211015794U CN211015794U CN201922474675.0U CN201922474675U CN211015794U CN 211015794 U CN211015794 U CN 211015794U CN 201922474675 U CN201922474675 U CN 201922474675U CN 211015794 U CN211015794 U CN 211015794U
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- electric arc
- arc furnace
- control system
- cooling water
- flow
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- 238000010891 electric arc Methods 0.000 title claims abstract description 81
- 239000000498 cooling water Substances 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 11
- 230000002159 abnormal effect Effects 0.000 claims abstract description 6
- 238000013500 data storage Methods 0.000 claims description 6
- 238000004880 explosion Methods 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000003745 diagnosis Methods 0.000 abstract description 2
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013075 data extraction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to an electric arc furnace cooling water flow difference alarm control device, belonging to the electric arc furnace cooling technical field, which concretely comprises a first flow sensor arranged on a main water supply pipe of an electric arc furnace, and a second flow sensor arranged at a cooling water inlet of a furnace cover of the electric arc furnace; the third flow sensor is arranged at a cooling water outlet of the furnace cover of the electric arc furnace; the data acquisition module is used for being connected with the first flow sensor, the second flow sensor and the third flow sensor, and the communication module is respectively connected with the data acquisition module and the electric arc furnace control system; the touch display screen is connected with the electric arc furnace control system and used for setting a threshold range of water flow data in the electric arc furnace control system; the alarm is connected with the arc furnace control system through a relay and is used for alarming abnormal data; the utility model discloses a real-time detection electric arc furnace cooling water's flow data carries out online diagnosis and unusual audible-visual annunciation to the flow of cooling water, avoids producing the explosion accident.
Description
Technical Field
The utility model relates to an electric arc furnace cooling water flow difference alarm control device belongs to electric arc furnace cooling technical field.
Background
Electric arc furnaces utilize high temperature melting of ores and metals produced by an electrode arc. When the gas discharge forms an electric arc, the energy is concentrated, and the temperature of the arc area is more than 3000 ℃. The furnace temperature is easy to control, the floor area of the equipment is small, and the method is suitable for smelting high-quality alloy steel and the non-metal mineral industry. When the electric arc furnace is in use, the temperature of the furnace cover of the electric arc furnace can rise along with the temperature rise, and the temperature needs to be reduced through cooling water so as to ensure the normal operation of the electric arc furnace. However, in the use process, because the furnace cover is easy to leak water in the long-term use process, water is rapidly and violently vaporized under the high-temperature action of molten steel, and further explosion is easy to occur.
At present, the prior art lacks a reliable monitoring means, can not discover the water leakage phenomenon in time, and increases the risk of explosion accidents.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem that prior art exists, the utility model provides an electric arc furnace cooling water flow difference alarm control device, its flow data through real-time detection electric arc furnace cooling water carries out online diagnosis and unusual audible-visual alarm to the flow of cooling water, avoids producing the explosion accident.
In order to achieve the purpose, the technical scheme adopted by the utility model is an electric arc furnace cooling water flow difference alarm control device, which comprises an electric arc furnace control system, a first flow sensor, a second flow sensor, a third flow sensor, a data acquisition module, a communication module, a touch display screen, a relay and an alarm, wherein the first flow sensor is arranged on a main water supply pipe of the electric arc furnace and is used for detecting water flow data of the main water supply pipe of the electric arc furnace;
the second flow sensor is arranged at a cooling water inlet of the furnace cover of the electric arc furnace and is used for detecting water flow data at the cooling water inlet of the furnace cover of the electric arc furnace;
the third flow sensor is arranged at a cooling water outlet of the furnace cover of the electric arc furnace and is used for detecting water flow data at the cooling water outlet of the furnace cover of the electric arc furnace;
the data acquisition module is used for being connected with the first flow sensor, the second flow sensor and the third flow sensor, and the communication module is respectively connected with the data acquisition module and the electric arc furnace control system and used for sending acquired water flow data to the electric arc furnace control system;
the touch display screen is connected with the electric arc furnace control system and used for setting a threshold range of water flow data in the electric arc furnace control system;
the electric arc furnace control system is used for comparing the set threshold range with the collected water flow data, judging whether the data are abnormal or not, and controlling to open the furnace cover of the electric arc furnace when the flow difference value detected by the second flow sensor and the third flow sensor is larger;
and the alarm is connected with the electric arc furnace control system through the relay and is used for alarming abnormal data.
Preferably, the system further comprises a data storage module, an alarm indicating lamp group and an external switch key group, wherein the data storage module is connected with the electric arc furnace control system and used for storing water flow data acquired by the electric arc furnace control system, the alarm indicating lamp group is connected with the relay, and the external switch key group is connected with the electric arc furnace control system.
Preferably, the external switch key group comprises alarm switch keys corresponding to all flow parameters and used for controlling the on-off of an alarm state; the alarm indicator lamp group comprises alarm indicator lamps corresponding to all flow parameters.
Preferably, the communication module is connected with the data acquisition module in a wireless signal mode.
Compared with the prior art, the utility model discloses following technological effect has: the utility model adopts a plurality of flow sensors to respectively detect the total flow parameter of cooling water, the inlet flow and the outlet flow parameter of the cooling water of the furnace cover of the electric arc furnace, adopts real-time online monitoring and visual display through a display screen, does not need to watch the reading of an instrument on site by a patrol worker, and reduces the labor intensity; meanwhile, the upper and lower limit threshold ranges of parameter alarming can be set manually, and the cooling water system can automatically perform sound and light alarming when running abnormally, so that hidden dangers can be found in time, explosion accidents are avoided, and the running reliability of the electric arc furnace is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the electric arc furnace cooling water flow difference alarm control device includes an electric arc furnace control system, a first flow sensor, a second flow sensor, a third flow sensor, a data acquisition module, a communication module, a touch display screen, a relay and an alarm, wherein the first flow sensor is installed on a main water supply pipe of the electric arc furnace and is used for detecting water flow data of the main water supply pipe of the electric arc furnace; the second flow sensor is arranged at a cooling water inlet of the furnace cover of the electric arc furnace and is used for detecting water flow data at the cooling water inlet of the furnace cover of the electric arc furnace; and the third flow sensor is arranged at the cooling water outlet of the furnace cover of the electric arc furnace and used for detecting water flow data at the cooling water outlet of the furnace cover of the electric arc furnace.
In this embodiment, the wireless data acquisition module is installed on the arc furnace, and is connected with the first flow sensor, the second flow sensor and the third flow sensor, and is used for acquiring sensor data on line. The wireless communication module is connected with the wireless data acquisition module in a wireless signal mode, and is connected with the electric arc furnace control system in an RS485 signal mode, and the wireless communication module is used for transmitting the sensor data acquired by the wireless data acquisition module to the electric arc furnace control system.
In the embodiment, the touch display screen is used for displaying the flow parameters of the cooling water on line in a text or curve mode, and in addition, a user can input and set the upper and lower limit threshold ranges of the flow parameters of each sensor and the flow difference threshold range of the leakage alarm through the touch display screen, and send each threshold data to the electric arc furnace control system for calculation.
The electric arc furnace control system in the embodiment is a P L C control system, can analyze sensor data obtained on line, judges whether cooling water flow is abnormal or not by comparing with a flow upper and lower limit threshold range and a leaked flow difference threshold range input by a user, calculates the flow difference between an inlet and an outlet of an electric arc furnace cover, compares with the flow difference threshold, and judges whether the electric arc furnace cover leaks or not.
In this embodiment, the data storage module is connected with the electric arc furnace control system for store the flow parameter that the electric arc furnace control system obtained, be convenient for patrolling and examining personnel to data extraction and further analysis, the data storage module can be USB flash disk, SD card or other storage media.
In this embodiment, the alarm indicator light group includes alarm indicator lights corresponding to each flow parameter; the external switch key group comprises alarm switch keys corresponding to all flow parameters and is used for controlling the on-off of an alarm state.
The specific working principle is as follows: when the first flow sensor, the second flow sensor and the third flow sensor detect that the water flow at any section of the pipeline is insufficient, signals are transmitted to the electric arc furnace control system through the communication module to give an alarm, and meanwhile, the electric arc furnace control system automatically controls the electric furnace to reduce the load; meanwhile, the monitoring personnel can inform the inspection personnel to inspect the water supply network; and when the electric arc furnace control system finds that the flow difference value exists between the furnace cover cooling water inlet and the furnace cover cooling water outlet of the electric furnace again for alarming, the electric furnace automatically moves away from the furnace cover when the difference value is larger than 30%.
The foregoing is considered as illustrative and not restrictive of the preferred embodiments of the invention, and any modifications, equivalents and improvements made within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (4)
1. Electric arc furnace cooling water flow difference alarm control device, including electric arc furnace control system, first flow sensor, second flow sensor, third flow sensor, data acquisition module, communication module, touch display screen, relay and alarm, its characterized in that:
the first flow sensor is arranged on a main water supply pipe of the electric arc furnace and used for detecting water flow data of the main water supply pipe of the electric arc furnace;
the second flow sensor is arranged at a cooling water inlet of the furnace cover of the electric arc furnace and is used for detecting water flow data at the cooling water inlet of the furnace cover of the electric arc furnace;
the third flow sensor is arranged at a cooling water outlet of the furnace cover of the electric arc furnace and is used for detecting water flow data at the cooling water outlet of the furnace cover of the electric arc furnace;
the data acquisition module is used for being connected with the first flow sensor, the second flow sensor and the third flow sensor, and the communication module is respectively connected with the data acquisition module and the electric arc furnace control system and used for sending acquired water flow data to the electric arc furnace control system;
the touch display screen is connected with the electric arc furnace control system and used for setting a threshold range of water flow data in the electric arc furnace control system;
the electric arc furnace control system is used for comparing the set threshold range with the collected water flow data, judging whether the data are abnormal or not, and controlling to open the furnace cover of the electric arc furnace when the flow difference value detected by the second flow sensor and the third flow sensor is large;
and the alarm is connected with the electric arc furnace control system through the relay and is used for alarming abnormal data.
2. The electric arc furnace cooling water flow difference alarm control device of claim 1, characterized in that: the electric arc furnace control system is characterized by further comprising a data storage module, an alarm indicating lamp set and an external switch key set, wherein the data storage module is connected with the electric arc furnace control system and used for storing water flow data acquired by the electric arc furnace control system, the alarm indicating lamp set is connected with the relay, and the external switch key set is connected with the electric arc furnace control system.
3. The electric arc furnace cooling water flow difference alarm control device of claim 2, characterized in that: the external switch key group comprises alarm switch keys corresponding to all flow parameters and is used for controlling the on-off of an alarm state; the alarm indicator lamp group comprises alarm indicator lamps corresponding to all flow parameters.
4. The electric arc furnace cooling water flow difference alarm control device of claim 1, characterized in that: the communication module is connected with the data acquisition module in a wireless signal mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922474675.0U CN211015794U (en) | 2019-12-31 | 2019-12-31 | Alarm control device for cooling water flow difference of electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922474675.0U CN211015794U (en) | 2019-12-31 | 2019-12-31 | Alarm control device for cooling water flow difference of electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211015794U true CN211015794U (en) | 2020-07-14 |
Family
ID=71476392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922474675.0U Expired - Fee Related CN211015794U (en) | 2019-12-31 | 2019-12-31 | Alarm control device for cooling water flow difference of electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211015794U (en) |
-
2019
- 2019-12-31 CN CN201922474675.0U patent/CN211015794U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 |