CN215337686U - Baker temperature measuring device of vacuum induction furnace - Google Patents
Baker temperature measuring device of vacuum induction furnace Download PDFInfo
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- CN215337686U CN215337686U CN202121223069.2U CN202121223069U CN215337686U CN 215337686 U CN215337686 U CN 215337686U CN 202121223069 U CN202121223069 U CN 202121223069U CN 215337686 U CN215337686 U CN 215337686U
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Abstract
The utility model provides a furnace baking temperature measuring device of a vacuum induction furnace, which relates to the field of metallurgy and comprises a plurality of thermocouples, wherein each thermocouple comprises a hot end and a cold end, the hot ends of the thermocouples extend into the induction furnace and are contacted with a furnace lining of the induction furnace, and the thermocouples are used for detecting the temperature of the furnace lining; the temperature display unit is connected with the cold end of the thermocouple and can display the numerical value of the temperature measured by the thermocouple; the cold ends of the thermocouples are uniformly distributed in the induction furnace, the temperature of the furnace lining in the crucible of the vacuum induction furnace is accurately detected, the detection thermocouples are convenient to replace, and the problems that the temperature in the crucible cannot be detected due to the complex structure of the vacuum induction furnace and the fixed thermocouples cannot be installed are effectively solved.
Description
Technical Field
The utility model relates to the field of metallurgy, in particular to a temperature measuring device of a baking furnace of a vacuum induction furnace.
Background
In the metallurgical industry, in steel-making production, particularly special steel-making production such as a vacuum induction furnace and the like, the furnace baking temperature is a key link influencing the production of the vacuum induction furnace. According to the process, a stable and reliable furnace baking curve is one of the basic requirements for ensuring that the furnace lining in the crucible is not damaged and the induction furnace can be normally produced. When the furnace is baked, the temperature is too high or too low, the furnace lining can be damaged, and even a steel leakage event can occur.
And because of the special design requirement of the vacuum induction furnace, the temperature of the baking furnace cannot be detected in a mode of installing a thermocouple by opening a hole in the furnace body.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a furnace baking temperature measuring device of a vacuum induction furnace, which realizes accurate and efficient detection of the temperature of a furnace lining of the vacuum induction furnace.
In order to achieve the above purpose, the utility model provides the following technical scheme: a furnace baking temperature measuring device of a vacuum induction furnace comprises a plurality of thermocouples, wherein each thermocouple comprises a hot end and a cold end, the hot ends of the thermocouples extend into the induction furnace and are in contact with a furnace lining of the induction furnace, and the thermocouples are used for detecting the temperature of the furnace lining; the temperature display unit is connected with the cold end of the thermocouple and can display the numerical value of the temperature measured by the thermocouple; wherein the cold ends of the thermocouples are uniformly distributed in the induction furnace.
Further, in the oven temperature measuring device of the vacuum induction oven, the temperature display unit includes a plurality of temperature display instruments, each temperature display instrument can be simultaneously connected with the cold ends of the two thermocouples, and each temperature display instrument can display the temperature value measured by the two thermocouples.
Further, in the oven temperature measuring device of the vacuum induction oven, the device further comprises a controller, the controller is connected with the temperature display instrument, and the temperature display instrument can transmit the temperature value measured by the thermocouple to the controller.
Further, in the oven temperature measuring device of the vacuum induction oven, the temperature display instrument transmits the temperature value measured by the thermocouple to the controller through an RS-485 bus.
Further, in the oven temperature measuring device of the vacuum induction oven, the oven temperature measuring device further comprises an indicator light, the indicator light is connected with the temperature display instrument, and when the temperature value measured by the thermocouple exceeds the preset temperature value in the temperature display instrument, the temperature display instrument can control the indicator light to be turned on.
Further, in the oven temperature measuring device of the vacuum induction oven, the thermocouple further includes a first joint, the cold end is connected to the first joint, the temperature display instrument includes a second joint, the first joint is used in cooperation with the second joint, and the first joint and the second joint are used for connecting the thermocouple and the temperature display instrument.
Further, in the oven temperature measuring device of the vacuum induction oven, the temperature display instrument includes two first display screens, and the two first display screens are used for displaying the temperature value measured by the thermocouple.
Further, in the oven temperature measuring device of the vacuum induction oven, a second display screen is further included, and the second display screen can display the ratio of the temperature value measured by the thermocouple and the preset temperature value in the temperature display instrument.
Further, in the oven temperature measuring device of the vacuum induction oven, a control button is further arranged on the temperature display instrument, and the control button is used for controlling the temperature display instrument.
Further, in the oven temperature measuring device of the vacuum induction oven, the thermocouple is an N-shaped armored thermocouple.
The utility model has the advantages that the temperature of the furnace lining in the crucible of the vacuum induction furnace is accurately detected, the detection thermocouple is convenient to replace, and the problems that the temperature in the crucible cannot be detected due to the complex structure of the vacuum induction furnace and the fixed thermocouple cannot be installed are effectively solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. Wherein:
FIG. 1 is a block diagram of an embodiment of the present invention.
FIG. 2 is a schematic structural diagram of a thermocouple according to an embodiment of the present invention.
Description of reference numerals: 1 hot end; 2, cold end; 3 a first joint.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the utility model, and not limitation of the utility model. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit thereof. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected," "connected," and "disposed" as used herein are intended to be broadly construed, and may include, for example, fixed and removable connections; can be directly connected or indirectly connected through intermediate components; the connection may be a wired electrical connection, a wireless electrical connection, or a wireless communication signal connection, and a person skilled in the art can understand the specific meaning of the above terms according to specific situations.
One or more examples of the utility model are illustrated in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the utility model. As used herein, the terms "first," "second," "third," and "fourth," etc. may be used interchangeably to distinguish one component from another and are not intended to indicate the position or importance of an individual component.
As shown in fig. 1-2, according to an embodiment of the present invention, there is provided a furnace temperature measuring device for a vacuum induction furnace, comprising a plurality of thermocouples, wherein each thermocouple comprises a hot end 1 and a cold end 2, the hot ends 1 of the plurality of thermocouples extend into the induction furnace and contact with a furnace lining of the induction furnace, and the thermocouples are used for detecting the temperature of the furnace lining; the temperature display unit is connected with the cold end 2 of the thermocouple and can display the numerical value of the temperature measured by the thermocouple; the cold ends 2 of the thermocouples are uniformly distributed in the induction furnace, and the thermocouples with corresponding numbers are uniformly distributed on the surface of the furnace lining for temperature detection according to the size of a crucible in the vacuum induction furnace.
Preferably, the temperature display unit comprises a plurality of temperature indicators, each capable of being simultaneously connected to the cold ends 2 of two thermocouples, each capable of displaying the temperature values measured by two thermocouples.
Preferably, the temperature measuring device further comprises a controller, wherein the controller is connected with a temperature display instrument, and the temperature display instrument can transmit the temperature value measured by the thermocouple to the controller.
Preferably, the temperature display instrument transmits the temperature value measured by the thermocouple to the controller through the RS-485 bus, the controller is generally a PLC, when the address of the temperature display instrument is consistent with the station number displayed by the PLC upper computer, the temperature display instrument and the PLC upper computer can communicate, and the specific condition of the temperature of the induction furnace can be known.
Preferably, the furnace temperature monitoring device further comprises an indicator light, the indicator light is connected with a temperature display instrument, when the temperature value measured by the thermocouple exceeds the temperature preset value in the temperature display instrument, the temperature display instrument can control the indicator light to be turned on, and the temperature display instrument sets the temperature preset value (temperature alarm value of the heat preservation section) to indicate that the temperature of the furnace reaches the heat preservation section.
Preferably, the thermocouple further comprises a first joint 3, the cold end 2 is connected with the first joint 3, the temperature display instrument comprises a second joint, the first joint 3 is matched with the second joint for use, the first joint 3 and the second joint are used for connecting the thermocouple and the temperature display instrument, the first joint 3 and the second joint are both quick plugs, and the N-shaped armored thermocouple quick plug (male plug) is connected with the temperature display instrument quick plug (female plug).
Preferably, the temperature display instrument comprises two first display screens, and the two first display screens are used for displaying the temperature value measured by the thermocouple.
Preferably, the temperature display instrument further comprises a second display screen, and the second display screen can display the ratio of the temperature value measured by the thermocouple and the temperature preset value in the temperature display instrument.
Preferably, the temperature display instrument is further provided with a control button, and the control button is used for controlling the temperature display instrument.
Preferably, the thermocouple is an N-type armored thermocouple, the N-type thermocouple is a cheap metal thermocouple, the price is low, the high-temperature oxidation resistance is strong, the long-term stability is strong, and the temperature measurement range meets the oven drying requirement of the vacuum induction oven. The armored thermocouple can be bent, and the cloth thermocouple is convenient.
According to the structural characteristics of the vacuum induction furnace, a set of temperature measurement equipment of the drying furnace and a standard method for operating the temperature measurement equipment are provided, the performance of the equipment and a drying furnace process curve are controlled, and the reliability of the drying furnace equipment is ensured. The temperature measuring device of the vacuum induction furnace is generally composed of a temperature measuring element, a temperature display instrument and the like. The technical scheme of the device is as follows: the temperature measuring element uses an N-shaped armored thermocouple with a quick connector, can be bent at will and is uniformly distributed on the surface of a furnace lining of the induction furnace in a plurality of points according to the size of the induction furnace. In order to ensure that the crucible in the induction furnace and the furnace lining are baked uniformly, the baking temperature curve is carried out according to the process. The N-shaped armored thermocouple is uniformly distributed in the induction furnace at a plurality of points (generally, the induction furnace is uniformly distributed) for temperature measurement. The hot end 1 (hot end 1) of the thermocouple is ensured to be in good contact with the furnace lining of the induction furnace. In the furnace baking process, when the temperature of the furnace lining reaches a heat preservation curve point, the temperature display instrument gives an alarm for prompting, the induction furnace enters a heat preservation section at the moment, and the thermocouple is coiled at a cool and dry place for placing after the furnace baking is finished, so that the radiation of an induction heat source is far away. The thermocouple on site is ensured not to be exposed and damaged. If the device is damaged, the device can be replaced in time. The N-type armored thermocouple can be bent at will, the temperature of the hot end 1 is not affected, the thermocouple is bent at will, the thermocouple is easy to wear, and the service life cannot be guaranteed. The technical standard requirements of the N-shaped armored thermocouple during furnace baking are as follows: the vacuum induction furnace is required to be dried and coupled under the state that the furnace body is completely powered off. The thermocouple should be sent to a laboratory for the first time verification of the thermocouple before the first time use, and the use times are recorded. Thermocouple accuracy rating was ± 0.4% FS. The precision grade of the temperature display instrument is +/-0.2% of FS, the graduation number of the temperature display instrument is N, and the process temperature alarm is set.
Compared with the prior art, the utility model has the advantages of accurate detection of the temperature of the furnace lining in the crucible of the vacuum induction furnace and convenient replacement of the detection thermocouple, and effectively solves the problems that the temperature in the crucible cannot be detected due to the complex structure of the vacuum induction furnace and the fixed thermocouple cannot be installed.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A baking furnace temperature measuring device of a vacuum induction furnace, which is characterized in that,
the thermocouple comprises a hot end and a cold end, the hot ends of the thermocouples extend into the induction furnace and are in contact with a furnace lining of the induction furnace, and the thermocouples are used for detecting the temperature of the furnace lining;
the temperature display unit is connected with the cold ends of the thermocouples and can display the numerical values of the temperatures measured by the thermocouples, the temperature display unit comprises a plurality of temperature display instruments, each temperature display instrument can be simultaneously connected with the cold ends of the two thermocouples, and each temperature display instrument can display the numerical values of the temperatures measured by the two thermocouples;
the temperature display instrument can control the indicator light to be turned on when the temperature value measured by the thermocouple exceeds a preset temperature value in the temperature display instrument;
wherein the cold ends of the thermocouples are uniformly distributed in the induction furnace.
2. The oven temperature measuring device of the vacuum induction oven according to claim 1, further comprising a controller, wherein the controller is connected with the temperature display instrument, and the temperature display instrument can transmit the temperature value measured by the thermocouple to the controller.
3. The oven temperature measuring device of the vacuum induction oven as claimed in claim 2, wherein the temperature display instrument transmits the temperature value measured by the thermocouple to the controller through an RS-485 bus.
4. The oven temperature measuring device of the vacuum induction oven according to claim 1, wherein the thermocouple further comprises a first joint, the cold end is connected with the first joint, the temperature indicator comprises a second joint, the first joint is used in cooperation with the second joint, and the first joint and the second joint are used for connecting the thermocouple and the temperature indicator.
5. The oven temperature measuring device of the vacuum induction oven as claimed in claim 1, wherein the temperature display instrument comprises two first display screens, and the two first display screens are used for displaying the temperature value measured by the thermocouple.
6. The oven temperature measuring device of the vacuum induction oven according to claim 1, further comprising a second display screen, wherein the second display screen can display the ratio of the temperature value measured by the thermocouple and the preset temperature value in the temperature display instrument.
7. The oven temperature measuring device of the vacuum induction oven as claimed in claim 1, wherein a control button is further provided on the temperature display instrument, and the control button is used for controlling the temperature display instrument.
8. The oven temperature measuring device of the vacuum induction oven according to claim 1, wherein the thermocouple is an N-type sheathed thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121223069.2U CN215337686U (en) | 2021-06-02 | 2021-06-02 | Baker temperature measuring device of vacuum induction furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121223069.2U CN215337686U (en) | 2021-06-02 | 2021-06-02 | Baker temperature measuring device of vacuum induction furnace |
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| CN215337686U true CN215337686U (en) | 2021-12-28 |
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| CN202121223069.2U Active CN215337686U (en) | 2021-06-02 | 2021-06-02 | Baker temperature measuring device of vacuum induction furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115821365A (en) * | 2022-10-27 | 2023-03-21 | 中国航发北京航空材料研究院 | Device and method for monitoring temperature gradient of single crystal furnace in real time |
-
2021
- 2021-06-02 CN CN202121223069.2U patent/CN215337686U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115821365A (en) * | 2022-10-27 | 2023-03-21 | 中国航发北京航空材料研究院 | Device and method for monitoring temperature gradient of single crystal furnace in real time |
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