CN220380238U - Leakage detection device of induction furnace - Google Patents
Leakage detection device of induction furnace Download PDFInfo
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- CN220380238U CN220380238U CN202321728933.3U CN202321728933U CN220380238U CN 220380238 U CN220380238 U CN 220380238U CN 202321728933 U CN202321728933 U CN 202321728933U CN 220380238 U CN220380238 U CN 220380238U
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Abstract
The utility model relates to a leakage furnace detection device of an induction furnace, and belongs to the technical field of metallurgical equipment detection. The device comprises a furnace body, a detection module and a controller which are connected in sequence; the furnace body comprises a furnace lining, a mica plate and a coil, wherein the mica plate is arranged between the furnace lining and the coil; the detection module comprises a furnace bottom electrode, a direct current power supply, an ammeter, a first detection branch and a second detection branch; the ammeter is connected in series with the direct-current power supply; the furnace bottom electrode is arranged at the bottom of the furnace body and is contacted with molten soup in the furnace body; the first detection branch comprises a side electrode and a first detection resistor, and the second detection branch comprises a coil and a second detection resistor; the side electrode is arranged between the furnace lining and the mica plate. According to the method and the device, the occurrence and the position of the furnace leakage are judged through the first detection branch and the second detection branch, so that the potential risks of equipment and personnel are reduced; and the controller and the alarm module help operators identify the furnace leakage condition, so that accurate coping is performed for the furnace leakage condition.
Description
Technical Field
The utility model belongs to the technical field of metallurgical equipment detection, and particularly relates to a leakage furnace detection device of an induction furnace.
Background
An induction furnace is a device which heats by utilizing an induction principle, and generates an alternating magnetic field through an induction coil to enable eddy currents to be generated in a workpiece, so that electric energy is converted into heat energy. The induction furnace can be used for heating metal workpieces such as steel materials, aluminum materials and the like. It is widely used in smelting, heat treatment, welding, hot die pressing and other processes. The induction furnace has the advantages of rapid heating, accurate temperature control, low energy consumption and the like, and can improve the production efficiency and the product quality, so that the induction furnace has wide application in the current industrial production. In the working process of the electric furnace, the problems of potential safety hazard, equipment damage, production efficiency reduction and the like caused by the fact that molten soup leaks to the outside of a furnace lining are difficult to completely avoid.
The utility model patent with the prior publication number of CN232620082U provides a medium-frequency smelting electric furnace with a leakage current detection device, which comprises a furnace lining and a cement tank, wherein the furnace lining is embedded in the cement tank, molten steel is smelted in the furnace lining, and the medium-frequency smelting electric furnace further comprises the leakage current detection device for detecting the leakage current. However, the detection device of the electric furnace only detects the leakage of molten metal to the coil position, and early warning cannot be performed before that. Leakage of molten soup to the coil will cause damage to the coil material, not only difficult to maintain, but also extremely dangerous. If the molten soup leaks and the treatment reaction is not timely, the risk is brought to personnel around the electric furnace.
Disclosure of Invention
In order to solve the technical problems in the background technology, the utility model provides a leakage detection device of an induction furnace.
The aim of the utility model can be achieved by the following technical scheme:
the leakage furnace detection device of the induction furnace comprises a furnace body, a detection module and a controller which are connected in sequence;
the furnace body comprises a furnace lining, a mica plate and a coil, wherein the mica plate is arranged between the furnace lining and the coil;
the detection module comprises a furnace bottom electrode, a direct current power supply, an ammeter, a first detection branch and a second detection branch; the ammeter is connected with the direct-current power supply in series;
the furnace bottom electrode is arranged at the bottom of the furnace body and is contacted with molten soup in the furnace body;
the first detection branch comprises a side electrode and a first detection resistor, and the second detection branch comprises the coil and a second detection resistor; the side electrode is arranged between the furnace lining and the mica plate;
the negative electrode of the direct current power supply is connected with the furnace bottom electrode; the positive electrode of the direct current power supply is connected with the side electrode through a first detection resistor and connected with the coil through a second detection resistor.
Preferably, the first detection branch further comprises a first voltage comparator, a feedback input end of the first voltage comparator is connected with the first detection resistor, and an output end of the first voltage comparator is connected with the controller.
Preferably, the second detection branch further comprises a second voltage comparator, a feedback input end of the second voltage comparator is connected with the second detection resistor, and an output end of the second voltage comparator is connected with the controller.
Preferably, the detection module further comprises a third detection branch; the third detection branch comprises a detection rod, and the detection rod is connected with the positive electrode of the direct current power supply.
Preferably, the detection module further comprises a single-pole double-throw switch; the public end of the single-pole double-throw switch is connected with the negative electrode of the direct-current power supply, the upper contact is connected with the bottom electrode, and the lower contact is grounded.
Preferably, the controller is an FPGA.
Preferably, the device further comprises an alarm module, and the alarm module is connected with the controller.
Preferably, the alarm module comprises a buzzer and a multicolor LED lamp.
Compared with the prior art, the utility model has the following beneficial effects:
according to the method and the device, the first detection branch and the second detection branch are arranged, so that the furnace leakage condition of the furnace body is accurately monitored, the occurrence and the position of the furnace leakage are supported and judged, and the potential risks brought to equipment and personnel by the furnace leakage are reduced;
according to the method, the controller judges the generation and the position of the furnace leakage according to the level signals received by different input ports, and responds to the alarm module according to the command, so that the judgment error of operators is reduced, the operators are facilitated to identify the furnace leakage condition, and accurate response treatment is carried out on the furnace leakage condition;
the third detection branch is arranged, so that the leakage condition of the bottom electrode and the bottom is detected, operators are reminded to overhaul in time, and the normal operation of the detection module is ensured, and the risk of leakage of the bottom is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a device for detecting leakage of an induction furnace according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a device for detecting leakage of an induction furnace according to another embodiment of the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1. a furnace body; 11. a coil; 12. a furnace lining; 13. mica plate; 2. a detection module; 21. a bottom electrode; 22. a side electrode; 23. a first voltage comparator; 24. a second voltage comparator; 3. a controller; 4. an alarm module.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. It is noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Referring to fig. 1, the utility model provides a leakage detecting device of an induction furnace, which comprises a furnace body 1, a detecting module 2 and a controller 3 which are connected in sequence;
the furnace body 1 comprises a coil 11, a furnace lining 12 and a mica plate 13, wherein the mica plate 13 is arranged between the furnace lining 12 and the coil 11. The mica plate 13 is used as an insulating material to protect the coil 11 and other electronic components from the high temperature of the furnace body 1.
The detection module 2 comprises a furnace bottom electrode 21, a direct current power supply, an ammeter, a first detection branch and a second detection branch; the ammeter is connected with a direct current power supply in series.
The bottom electrode 21 is arranged at the bottom of the furnace body 1 and contacts with molten soup in the furnace body 1. Specifically, the bottom electrode 21 includes a plurality of steel wires, one ends of the steel wires are in contact with molten soup in the furnace body 1, and the other ends of the steel wires are connected into a point and led out of the furnace body 1 to be connected with a negative electrode of a direct current power supply.
The furnace body 1 can thin the furnace lining 12 after long-time use, and a connecting gap is difficult to avoid between the furnace lining 12 and the mica plate 13, so that molten soup leaks between the mica plate 13 and the furnace lining 12 in the use process of the furnace body 1, and the furnace leakage phenomenon occurs. In order to find this phenomenon in time, the present application provides a first detection branch comprising a side electrode 22 and a first detection resistor R1, the side electrode 22 being arranged between the lining 12 and the mica plate 13.
After the furnace leakage occurs to the side electrode 22, there is a possibility that the molten soup leaks to the coil 11 through the mica plate 13. Leakage of molten metal to the coil 11 will result in material damage to the coil 11, not only in difficult maintenance but also at a very high risk. In order to detect the leakage of molten metal to the coil 11, a second detection branch is provided, comprising said coil 11 and a second detection resistor R2.
The negative electrode of the direct current power supply is connected with the bottom electrode 21; the positive electrode of the dc power supply is connected to the side electrode 22 via a first detection resistor R1, and to the coil 11 via a second detection resistor R2.
When molten soup in the furnace body 1 leaks to the side electrode 22, the first detection branch, the furnace bottom electrode 21 and the direct current power supply form a first loop, and readings of an ammeter connected in the first loop in series are changed; when the molten metal further leaks into the coil 11, the second detection branch, the bottom electrode 21 and the direct current power supply form a second loop, and the readings of the ammeter connected in series in the first loop are further changed.
According to the method and the device, the first detection branch and the second detection branch are arranged, so that the furnace leakage condition of the furnace body 1 is accurately monitored, the occurrence and the position of furnace leakage are supported and judged, and the potential risks brought to equipment and personnel by furnace leakage are reduced.
Further, the first detection branch further includes a first voltage comparator 23, a feedback input end of the first voltage comparator 23 is connected to the first detection resistor R1, a non-feedback input end of the first voltage comparator is connected to the first reference voltage source Vref1, and an output end of the first voltage comparator is connected to the first input port of the controller 3. The first voltage comparator 23 compares the sampling voltage of the first detection resistor R1 with the reference voltage supplied from the first reference voltage source Vref1, and outputs a high level to the controller 3 when the sampling voltage is greater than the reference voltage.
Further, the second detection branch further includes a second voltage comparator 24, a feedback input end of the second voltage comparator 24 is connected to the second detection resistor R2, a non-feedback input end of the second voltage comparator is connected to the second reference voltage source Vref2, and an output end of the second voltage comparator is connected to the second input port of the controller 3. The second voltage comparator 24 compares the sampling voltage of the second detection resistor R2 with the reference voltage supplied from the second reference voltage source Vref2, and outputs a high level to the controller 3 when the sampling voltage is greater than the reference voltage.
Based on the foregoing, the controller 3 determines the generation and location of the leakage furnace according to the level signals received by the different input ports, and the determination of the controller 3 is more intuitive than the ammeter reading. The ammeter reading may provide current change information of the leak condition, but may not be clear enough to intuitively know the location of the leak. And the level signals of different input ports are received and processed by the controller 3, so that further processing can be performed according to different furnace leakage positions, the diagnosis and processing efficiency of furnace leakage conditions are improved, and the judgment error of operators in checking readings of the ammeter is reduced.
As a preferred embodiment, referring to fig. 2, to ensure that the bottom electrode 21 contacts normally, the detection module 2 further includes a third detection branch; the third detection branch comprises a detection rod, and the detection rod is connected with the positive electrode of the direct current power supply. Based on the foregoing, the third detection branch is used to detect the contact state of the bottom electrode 21. In the detection process, an operator enables the detection rod to contact molten soup through the top of the furnace body 1, and if the bottom electrode 21 contacts the molten soup normally, the detection rod and the direct current power supply form a third loop, and the ammeter normally generates readings; if the contact between the bottom electrode 21 and the molten metal is poor, the ammeter does not generate readings or the readings are greatly different from the theoretical values, and an operator is required to overhaul in time so as to ensure the normal operation of the detection module 2.
In the foregoing embodiment, the side electrode 22 and the coil 11 have been used to detect the leakage condition of the furnace, so as to further ensure that the detection module 2 works normally and the furnace bottom has no leakage, as a preferred embodiment, referring to fig. 2, the detection module 2 further includes a single-pole double-throw switch S1; the common terminal of the single pole double throw switch S1 is connected to the negative electrode of the dc power supply, the upper contact is connected to the bottom electrode 21, and the lower contact is grounded. When the detection function provided by the foregoing embodiment is normally implemented, the single pole double throw switch S1 turns on the upper contact. When the leakage condition of the furnace bottom needs to be detected, the single-pole double-throw switch S1 is connected with a lower contact, an operator enables a detection rod to contact molten soup through the top of the furnace body 1, if no reading is given out by an ammeter, the condition that the furnace bottom does not leak is indicated, and the detection module 2 works normally; if the ammeter has a reading, the molten soup is grounded, the furnace bottom leaks, and operators need to overhaul in time.
As a preferred embodiment, the controller 3 is an FPGA (field programmable gate array). The FPGA is characterized by programmability as the controller 3. The system can be programmed according to specific application requirements and realize required logic functions, so that the system has higher flexibility. Meanwhile, the FPGA can realize high-speed transmission and processing of data, and can communicate with other systems or devices to realize interaction and transmission of data. The detection module 2 can conveniently exchange and transmit data with other systems, and realize functions such as linkage control with other devices.
As a preferred embodiment, the device of the present application further comprises an alarm module 4, said alarm module 4 being connected to said controller 3. The alarm module 4 is used for sending out an alarm signal to prompt an operator or other related personnel to have an abnormal situation or fault. By connecting with the controller 3, the alarm module 4 can receive the instruction sent by the controller 3 to start or stop the alarm signal, and adjust the response mode of the alarm according to the demands of operators or systems.
As a preferred embodiment, the alarm module 4 comprises a buzzer and a multicolor LED lamp. The buzzer reminds operators or other related personnel of abnormal situations or faults by emitting sounds with different frequencies and different volumes. Multicolor LED lamps draw attention and alert operators or other related personnel by emitting lights of different colors and flashing frequencies. The alarm module 4 can be instructed by the controller 3 to control the on and off of the buzzer and the multicolor LED lamp, and to adjust and control the sound and the light color. For example, when no abnormality is found in the detection module 2, the multicolor LED lamp displays green; when the detection module 2 detects that the furnace leaks to the mica plate 13 through the first detection branch, the multicolor LED lamp displays positive red, and the buzzer gives an alarm; when the detection module 2 detects that the furnace leaks to the coil 11 through the second detection branch, the multicolor LED lamp displays dark red and flashes, and the buzzer sends out an alarm with higher frequency. The controller 3 and the alarm module 4 realize stronger perceptibility and alertness, and are helpful for operators to identify the furnace leakage condition, so that accurate coping is performed for the furnace leakage condition.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another apparatus, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM, random access memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the structures of this utility model and various modifications, additions and substitutions for those skilled in the art can be made to the specific embodiments described herein without departing from the scope of the utility model or from the scope of the utility model as defined in the accompanying claims.
Claims (8)
1. A leakage detection device of an induction furnace is characterized in that: comprises a furnace body, a detection module and a controller which are connected in sequence;
the furnace body comprises a furnace lining, a mica plate and a coil, wherein the mica plate is arranged between the furnace lining and the coil;
the detection module comprises a furnace bottom electrode, a direct current power supply, an ammeter, a first detection branch and a second detection branch; the ammeter is connected with the direct-current power supply in series;
the furnace bottom electrode is arranged at the bottom of the furnace body and is contacted with molten soup in the furnace body;
the first detection branch comprises a side electrode and a first detection resistor, and the second detection branch comprises the coil and a second detection resistor; the side electrode is arranged between the furnace lining and the mica plate;
the negative electrode of the direct current power supply is connected with the furnace bottom electrode; the positive electrode of the direct current power supply is connected with the side electrode through a first detection resistor and connected with the coil through a second detection resistor.
2. The apparatus according to claim 1, wherein: the first detection branch circuit further comprises a first voltage comparator, the feedback input end of the first voltage comparator is connected with the first detection resistor, and the output end of the first voltage comparator is connected with the controller.
3. The apparatus according to claim 1, wherein: the second detection branch circuit further comprises a second voltage comparator, the feedback input end of the second voltage comparator is connected with the second detection resistor, and the output end of the second voltage comparator is connected with the controller.
4. The apparatus according to claim 1, wherein: the detection module further comprises a third detection branch; the third detection branch comprises a detection rod, and the detection rod is connected with the positive electrode of the direct current power supply.
5. The apparatus according to claim 4, wherein: the detection module further comprises a single-pole double-throw switch; the public end of the single-pole double-throw switch is connected with the negative electrode of the direct-current power supply, the upper contact is connected with the bottom electrode, and the lower contact is grounded.
6. The apparatus according to claim 1, wherein: the controller is an FPGA.
7. The apparatus according to claim 1, wherein: the system also comprises an alarm module, wherein the alarm module is connected with the controller.
8. The apparatus according to claim 7, wherein: the alarm module comprises a buzzer and a multicolor LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321728933.3U CN220380238U (en) | 2023-07-04 | 2023-07-04 | Leakage detection device of induction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321728933.3U CN220380238U (en) | 2023-07-04 | 2023-07-04 | Leakage detection device of induction furnace |
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| Publication Number | Publication Date |
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| CN220380238U true CN220380238U (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321728933.3U Active CN220380238U (en) | 2023-07-04 | 2023-07-04 | Leakage detection device of induction furnace |
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| CN (1) | CN220380238U (en) |
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2023
- 2023-07-04 CN CN202321728933.3U patent/CN220380238U/en active Active
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