CN111982356A - Thermocouple fault diagnosis system and method for tire vulcanizer - Google Patents
Thermocouple fault diagnosis system and method for tire vulcanizer Download PDFInfo
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- CN111982356A CN111982356A CN202010790178.6A CN202010790178A CN111982356A CN 111982356 A CN111982356 A CN 111982356A CN 202010790178 A CN202010790178 A CN 202010790178A CN 111982356 A CN111982356 A CN 111982356A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/007—Testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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- General Physics & Mathematics (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a thermocouple fault diagnosis system and method for a tire vulcanizer, which solve the technical problem that the temperature measurement abnormality cannot be found in time due to the fault of a thermocouple for detecting the temperature of a hot plate of the existing tire vulcanizer, so that the over-sulfur or under-sulfur occurs in the production of a tire vulcanization process; the first thermocouple is electrically connected with the first temperature display, the second thermocouple is electrically connected with the second temperature display, and the temperature of steam in the steam loop is detected; the hot well is used for being in touch connection with the probe type temperature measuring instrument; the hot well is a tubular structure with one closed end and the other open end, the closed end of the hot well extends into the steam loop, the open end of the hot well is arranged outside the steam loop, and the closed end of the hot well extends into the steam loop, so that the hot well can be widely applied to the vulcanization process in the tire industry.
Description
Technical Field
The invention particularly relates to a thermocouple fault diagnosis system for a tire vulcanizer and a method thereof.
Background
As is known, the process of rubber vulcanization is a process of chemically reacting rubber macromolecules with a cross-linking agent sulfur under heating and forming a three-dimensional network structure through cross-linking, the tire vulcanization process is a key link in the tire production process, and the required heat is usually transferred to a tire blank through outer-temperature steam, a hot plate and inner-temperature steam respectively and through a capsule.
In the existing tire vulcanization process, a thermocouple is adopted to measure the steam temperature, and in order to ensure the temperature measurement accuracy, the thermocouple needs to be periodically detached and calibrated, but the thermocouple inevitably fails in the continuous use process, so that the temperature measurement display value is higher or lower than the actual steam temperature. When the temperature measurement display value is lower than the actual temperature of the steam, the actual temperature of the steam used for vulcanization is higher; when the temperature measurement display value is higher than the actual temperature of the steam, the actual temperature of the steam used for vulcanization is lower. In the tire vulcanization process, the vulcanization temperature of a tire blank is controlled within a certain temperature range according to the temperature measurement display value, and the problem of over-sulfur or under-sulfur in the production of the tire vulcanization process is caused due to the fact that a thermocouple breaks down and temperature measurement abnormity cannot be found in time, so that the tire is scrapped seriously, and the quality qualified rate of the tire is influenced.
Disclosure of Invention
The invention aims to solve the technical defects and provides a thermocouple fault diagnosis system and a thermocouple fault diagnosis method for a tire vulcanizer, which can find temperature measurement abnormity caused by the fault of a thermocouple for detecting the temperature of a hot plate of the tire vulcanizer in time.
The thermocouple fault diagnosis system is provided with a hot plate, a steam loop communicated with the hot plate and a thermocouple, wherein the thermocouple is provided with a first thermocouple and a second thermocouple, and the steam loop close to the hot plate is respectively provided with the first thermocouple and the second thermocouple in a mounting and connecting manner and is used for detecting the steam temperature in the steam loop; the first thermocouple is electrically connected with the first temperature display, and the second thermocouple is electrically connected with the second temperature display; a steam loop close to the hot plate is also provided with a hot well in a mounting and connecting way; the hot well is used for being in touch connection with the probe type temperature measuring instrument; the hot well is of a tubular structure with one closed end and the other open end, the closed end of the hot well extends into the steam loop, and the open end of the hot well is arranged outside the steam loop; during temperature measurement, a probe of the probe type thermodetector extends into the bottom of an inner cavity of the hot well from the opening end of the hot well and is used for detecting the temperature of steam in the steam loop.
Preferably, a drain valve and a check valve are further sequentially installed on the steam circuit along the steam flowing direction, and the second thermocouple and the hot well are arranged between the first thermocouple and the drain valve.
Preferably, the trap is in parallel communication with the ball valve.
Preferably, the closed end of the hot well is inserted a distance of two thirds into the steam circuit.
Preferably, the hot well is installed on the steam loop through a hot well wire seat; the hot well wire seat is of a hollow cylindrical structure with two open ends, and one open end of the hot well wire seat is hermetically connected with the steam loop; the hot well is sequentially provided with a prism part, a connecting thread part and an insertion head part which are connected from top to bottom; the connecting thread part is in adaptive connection with the internal thread of the opening at the other end of the hot well screw seat; the insertion head passes through the pipe wall of the steam loop from the inner cavity of the wire seat of the hot well wire seat downwards and extends into the inner cavity of the pipeline.
Preferably, the intelligent control system is further provided with an intelligent control system, a flow control valve and a key module, wherein the intelligent control system is provided with an intelligent control device, and the intelligent control device is respectively connected with the first thermocouple, the flow control valve and the key module through control lines.
The thermocouple fault diagnosis method for the tire vulcanizer is provided with the thermocouple fault diagnosis system for the tire vulcanizer, and comprises the following steps of:
(1) when the temperature difference between the temperature displayed by the first temperature display and the temperature displayed by the second temperature display is less than 2 ℃, the first thermocouple or the second thermocouple does not need to be calibrated;
(2) when the temperature difference between the temperature displayed by the first temperature display and the temperature displayed by the second temperature display is 2-5 ℃, measuring the temperature of the hot well by using a probe type temperature measuring instrument, and correcting the temperature detected by the first thermocouple according to the temperature of the hot well to ensure that the displayed temperature of the first temperature display is consistent with the temperature of the hot well;
(3) when the temperature difference between the temperature displayed by the first temperature display and the temperature of the hot well measured by the probe type temperature measuring instrument exceeds 5 ℃, the first thermocouple is proved to be out of order, the vulcanization temperature of the tire blank deviates from the standard, and the qualified first thermocouple needs to be replaced.
The invention has the beneficial effects that: the invention provides a thermocouple fault diagnosis system and method for a tire vulcanizer, which are provided with a hot plate and a steam loop communicated with the hot plate, wherein the steam loop close to the hot plate is respectively provided with a first thermocouple, a second thermocouple and a hot well which are arranged at intervals and used for detecting the steam temperature in the steam loop. The invention can find out the temperature measurement abnormality of the thermocouple in time, ensure that the temperature of the hot plate meets the preset standard requirement, avoid the defect of batch secondary waste products, improve the stability of the tire vulcanization process and the vulcanization quality of the tire blank, and improve the quality qualification rate of the tire.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the intelligent control system of the present invention;
FIG. 3 is a schematic diagram of a hot well in the present invention;
FIG. 4 is a schematic structural view of the cross-sectional view shown in FIG. 3;
FIG. 5 is a schematic structural diagram of the right side view shown in FIG. 3;
fig. 6 is a schematic view of the structure of the hot well of the present invention installed on a steam circuit.
The labels in the figure are: 1. the hot plate, 2, a steam loop, 3, a first thermocouple, 4, a second thermocouple, 5, a first temperature display, 6, a second temperature display, 7, a hot well, 8, an intelligent control device, 9, a drain valve, 10, a check valve, 11, a ball valve, 12, a hot well screw seat, 13, a flow control valve, 14, a key module, 15, a hot well inner cavity, 16, a pipeline inner cavity, 17, a screw seat inner cavity, 71, a prism part, 72, a connecting thread part and 73 an insertion head.
Detailed Description
The invention is further described below in conjunction with the drawings and the specific embodiments to assist in understanding the contents of the invention. The method used in the invention is a conventional method if no special provisions are made; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.
As shown in fig. 1, 3-6, the present invention provides a thermocouple fault diagnosis system for a tire vulcanizer, which comprises a hot plate 1 for transferring heat required for vulcanization to a tire blank, a steam circuit 2 and a steam access path respectively communicated with the hot plate 1, and a thermocouple; during vulcanization, steam enters the hot plate 1 from the steam inlet, heat required by vulcanization is transferred to the tire blank, the steam after heat exchange flows out of the hot plate 1, then returns to a boiler room through the steam loop 2 to heat and absorb the heat, and then enters the hot plate 1 through the steam inlet to release the heat, and the absorption and release processes of the steam heat are repeated in a circulating mode. The thermocouple is a commonly used temperature measuring element in a temperature measuring instrument, directly measures temperature, converts a temperature signal into a thermal electromotive force signal, and converts the thermal electromotive force signal into the temperature of a measured medium through an electric instrument; the thermocouple is provided with a first thermocouple 3 and a second thermocouple 4, the first thermocouple 3 and the second thermocouple 4 are respectively installed and connected on a steam loop 2 close to a hot plate 1 and used for detecting the temperature of steam in the steam loop 2, the first thermocouple 3 and the second thermocouple 4 are arranged at intervals, and the first thermocouple 3 and the second thermocouple 4 are both installed on the steam loop 2 close to the hot plate 1 so as to accurately detect the temperature of the steam flowing out of the hot plate 1. The first thermocouple 3 is electrically connected with a first temperature display 5, and the first temperature display 5 displays the temperature measured by the first thermocouple 3; the second thermocouple 4 is electrically connected with a second temperature display 6, and the second temperature display 6 displays the measured temperature of the second thermocouple 4 for an operator to check. The steam loop 2 close to the hot plate 1 is further provided with a hot well 7 in an installing and connecting mode, the hot well 7 is arranged at intervals with the first thermocouple 3 and the second thermocouple 4 respectively, the hot well 7 is used for being in touch connection with the probe type temperature measuring instrument, the hot well 7 is installed on the steam loop 2 close to the hot plate 1 in a sealing mode, and the temperature of steam flowing out of the hot plate 1 is detected instantly and accurately through the probe type temperature measuring instrument. The hot well 7 is a tubular structure with one closed end and the other open end, the closed end of the hot well 7 extends into the steam loop 2, and the open end of the hot well 7 is arranged outside the steam loop 2; probe thermometers are commonly used commercially available thermometry devices. During temperature measurement, an operator extends a probe of the probe type temperature measuring instrument into the bottom of the inner cavity 15 of the hot well from the opening end of the hot well 7 to detect the temperature of steam in the steam loop 2. In the working process of the invention, a first thermocouple 3 and a second thermocouple 4 respectively detect the temperature of steam flowing out of a steam loop 2 of a hot plate 1, when the comparison result of the detected temperatures respectively displayed by a first temperature display 5 and a second temperature display 6 is abnormal enough to cause the temperature of over-sulfur or under-sulfur in the production of a tire vulcanization process, an operator holds a probe type temperature measuring instrument by hand, a probe of the probe type temperature measuring instrument extends into the bottom of an inner cavity 15 of a hot well from the opening end of the hot well 7, the displayed temperature of the probe type temperature measuring instrument is checked and compared with the displayed temperatures of the first temperature display 5 and the second temperature display 6, on one hand, the steam temperature in the steam loop 2 is verified, on the other hand, whether the first thermocouple 3 and the second thermocouple 4 are in fault or not is judged, and if the fault occurs, the operator timely arranges replacement. In order to improve the verification accuracy, a plurality of probe type thermometers can be adopted to test the temperature in sequence, and the operation is real-time and flexible. In the production process, in order to ensure the accuracy of the detected temperature, the first thermocouple 3, the second thermocouple 4 and the probe type temperature measuring instrument need to be regularly arranged and calibrated.
As a preferred embodiment, as shown in fig. 1, a steam trap 9 and a check valve 10 are further sequentially installed on the steam circuit 2 along the steam flowing direction, and the second thermocouple 4 and the hot well 7 are arranged between the first thermocouple 3 and the steam trap 9; the drain valve 9 discharges condensed water and air in the steam loop 2 as soon as possible, and simultaneously, the leakage of steam is automatically prevented to the maximum extent; the check valve 10, also called a one-way valve, prevents an unintended reverse flow of steam in the steam circuit 2. As a more preferred embodiment, the trap 9 is in parallel communication with a ball valve 11, typically with the trap 9 open and the ball valve 11 closed; when the steam trap 9 is out of order or overhauled, the ball valve 11 can be opened temporarily, so that the steam in the steam loop 2 can be temporarily switched to the pipeline where the ball valve 11 is located.
As a preferred embodiment, as shown in fig. 6, the closed end of the thermal well 7 is inserted into the steam loop 2 by a distance of two thirds, that is, L/D is 2/3, where L is the distance the closed end of the thermal well 7 is inserted into the steam loop 2, and D is the diameter of the pipe inner cavity 16 of the steam loop 2, so that the closed end of the thermal well 7 is in full contact with steam, and the temperature detected by inserting the probe type thermometer into the thermal well 7 is more accurate.
As a preferred embodiment, illustrated by fig. 3-6, the thermal well 7 is mounted on the steam circuit 2 by a thermal well wire holder 12. The hot well wire seat 12 is a hollow cylindrical structure with two open ends, and one open end of the hot well wire seat 12 is hermetically connected with the steam loop 2. The hot well 7 is provided with a prism part 71, a connecting thread part 72 and an insertion head part 73 which are connected in sequence from top to bottom; the prism part 71 is adapted to an auxiliary tool such as a wrench, and the connecting screw part 72 is adapted to and screwed with the internal thread of the other end opening of the hot well screw base 12 by rotating the prism part 71 with the wrench; the insertion head 73 extends from the wire holder interior 17 of the hot well wire holder 12 down through the pipe wall of the steam circuit 2 and into the pipe interior 16. The hot well 7 is made of stainless steel round steel with the diameter of 35mm, and the diameter of the hot well inner cavity 15 is 3.2 mm.
As a preferred embodiment, as shown in fig. 2, the present invention further includes an intelligent control system, a flow control valve 13, and a key module 14, where the intelligent control system includes an intelligent control device 8, and the intelligent control device 8 may be a programmable logic controller PLC; commercially available PLC modules IC695CPE310, PLC modules CJ2M-CPU33, etc. are typically available. The intelligent control device 8 is respectively connected with the first thermocouple 3, the flow control valve 13 and the key module 14 through control lines. The flow control valve 13 is installed on the steam circuit 2 for controlling the flow rate of the steam in the steam circuit 2. The key module 14 includes a keyboard, and by inputting a programming instruction on the keyboard, the programming instruction is sent to the intelligent control device 8, and the input of information by the intelligent control device 8 realizes the corresponding output control. The intelligent control device 8 can also be connected with a power module through a control circuit, and the power module is mainly used for supplying power to the intelligent control system, the first thermocouple 3, the key module 14, the flow control valve 13 and the like. First thermocouple 3 detects the steam temperature of steam circuit 2 to transmit induction signal to intelligent control device 8 through control scheme, after intelligent control device 8 received induction signal, give the instruction to flow control valve 13 through the control scheme, flow control valve 13 received the action of executing the expansion or reducing steam flow behind the instruction: when the steam temperature detected by the first thermocouple 3 is higher than the preset temperature, the action of reducing the steam flow is executed through the process flow control valve 13, so that the steam flow for heat exchange is reduced, and the purpose of reducing the steam temperature in the steam loop 2 is achieved, thereby reducing the steam temperature in the hot plate 1 and preventing the vulcanization of the tire due to overhigh temperature; when the steam temperature detected by the first thermocouple 3 is lower than the preset temperature, the action of increasing the steam flow is executed through the process flow control valve 13, so that the steam flow for heat exchange is increased, and the purpose of increasing the steam temperature in the steam loop 2 is achieved, thereby realizing the purpose of increasing the steam temperature in the hot plate 1 and preventing the tire vulcanization from being lack of sulfur due to the over-low temperature.
A thermocouple fault diagnosis method for a tire vulcanizer provided with the thermocouple fault diagnosis system for a tire vulcanizer of any one of the above, comprising:
(1) when the difference between the temperature displayed by the first temperature display 5 and the temperature displayed by the second temperature display 6 is less than 2 ℃, there is no need to calibrate the first thermocouple 3 or the second thermocouple 4.
(2) When the temperature difference between the temperature displayed by the first temperature display 5 and the temperature displayed by the second temperature display 6 is 2-5 ℃, the temperature of the hot well 7 is measured by using a probe type thermometer, and the temperature detected by the first thermocouple 3 is corrected according to the temperature of the hot well 7, so that the displayed temperature of the first temperature display 5 is consistent with the temperature of the hot well 7.
One way to correct the detected temperature of the first thermocouple 3 according to the temperature of the hot well 7 is as follows: by inputting a modified programming command on the keyboard of the key module 14 and sending the modified programming command to the intelligent control device 8, the input of information from the intelligent control device 8 realizes the output control corresponding to the flow control valve 13. For example, when the first temperature indicator 5 indicates a temperature of 62 ℃, the second temperature indicator 6 indicates a temperature of 65 ℃, the temperature difference is 3 ℃, and the temperature of the hot well 7 is 64 ℃ as measured by a probe thermometer in a range of 2 ℃ to 5 ℃, the temperature difference obtained by correcting the temperature detected by the first thermocouple 3 according to the temperature of the hot well 7 is 64 ℃ to 62 ℃ to 2 ℃. The intelligent control device 8 receives the sensed temperature signal from the first thermocouple 3, and the sensed temperature signal is still 62 ℃, and through the correction of +2 ℃, the intelligent control device 8 sends an instruction to the flow control valve 13 through the control line by using 64 ℃ as a temperature value.
(3) When the temperature difference between the temperature displayed by the first temperature display 5 and the temperature of the hot well 7 measured by the probe type temperature measuring instrument exceeds 5 ℃, the first thermocouple 3 is proved to be in failure, the vulcanization temperature of the tire blank deviates from the standard, and the qualified first thermocouple 3 needs to be replaced.
It should be noted that the above technical solution is set based on the qualification and effectiveness of the probe type thermometer, and the temperature detected by the probe type thermometer in the hot well 7 can be regarded as the actual temperature of the steam at the point in the steam circuit 2. In addition, during the actual installation process, the first thermocouple 3, the second thermocouple 4 and the heat well 7 are required to be installed on the steam circuit 2 in close positions, so that the difference of the steam temperature in the steam circuit 2 caused by different installation positions is reduced to the maximum extent. In the actual monitoring of the steam temperature in the steam loop 2, the possibility that the first thermocouple 3 and the second thermocouple 4 simultaneously have faults is very small, and in order to prevent a small probability event, an operator regularly measures the temperature of the hot well 7 by using a probe type temperature measuring instrument and compares the temperatures.
The invention has the following remarkable technical effects: on one hand, the temperature measurement abnormity of the thermocouple can be found in time, the temperature of the hot plate is ensured to meet the preset standard requirement, and the defect of batch secondary waste products is avoided; on the other hand, the stability of the tire vulcanization process is improved, the vulcanization quality of the tire blank is improved, and the tire quality qualification rate is improved.
In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. It should be noted that, in the above embodiments, the terms "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.
However, the above description is only exemplary of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.
Claims (7)
1. A thermocouple fault diagnosis system for a tire vulcanizer is provided with a hot plate (1), a steam loop (2) communicated with the hot plate (1), and a thermocouple, and is characterized in that the thermocouple is provided with a first thermocouple (3) and a second thermocouple (4), and the steam loop (2) close to the hot plate (1) is respectively provided with the first thermocouple (3) and the second thermocouple (4) in a mounting connection manner and is used for detecting the temperature of steam in the steam loop (2); the first thermocouple (3) is electrically connected with a first temperature display (5), and the second thermocouple (4) is electrically connected with a second temperature display (6); a hot well (7) is also installed and connected on the steam loop (2) close to the hot plate (1); the hot well (7) is used for being in touch connection with the probe type temperature measuring instrument; the hot well (7) is of a tubular structure with one closed end and the other open end, the closed end of the hot well (7) extends into the steam loop (2), and the open end of the hot well (7) is arranged outside the steam loop (2); during temperature measurement, a probe of the probe type thermodetector extends into the bottom of the inner cavity (15) of the hot well from the opening end of the hot well (7) and is used for detecting the temperature of steam in the steam loop (2).
2. Thermocouple fault diagnosis system for a tyre vulcanizer, according to claim 1, characterized in that on said steam circuit (2) there are further mounted, in sequence, a steam trap (9) and a check valve (10), said second thermocouple (4), said hot well (7) being arranged between said first thermocouple (3) and said trap (9), in the direction of steam flow.
3. Thermocouple fault diagnosis system for tyre vulcanizers according to claim 2, characterized in that the trap (9) communicates in parallel with the ball valve (11).
4. Thermocouple fault diagnosis system for tyre vulcanizers according to claim 1, characterized in that the closed end of the hot well (7) is inserted into the steam circuit (2) over a distance of two thirds.
5. A thermocouple fault diagnosis system for a tyre vulcanizer, according to claim 1, characterized in that said hot well (7) is mounted on said steam circuit (2) by means of a hot well wire holder (12); the hot well wire seat (12) is of a hollow cylindrical structure with two open ends, and one open end of the hot well wire seat (12) is hermetically connected with the steam loop (2); the hot well (7) is provided with a prism part (71), a connecting thread part (72) and an insertion head part (73) which are connected in sequence from top to bottom; the connecting thread part (72) is in fit connection with the internal thread of the opening at the other end of the hot well screw seat (12); the insertion head (73) extends from the screw base interior (17) of the hot-well screw base (12) downwards through the pipe wall of the steam circuit (2) and into the pipe interior (16).
6. The thermocouple fault diagnosis system for the tire vulcanizer according to claim 1, further comprising an intelligent control system, a flow control valve (13), and a key module (14), wherein the intelligent control system comprises an intelligent control device (8), and the intelligent control device (8) is connected to the first thermocouple (3), the flow control valve (13), and the key module (14) through control lines, respectively.
7. A thermocouple fault diagnosis method for a tire vulcanizer, characterized in that it is provided with a thermocouple fault diagnosis system for a tire vulcanizer of any one of claims 1 to 6, and the diagnosis method is as follows:
(1) when the temperature difference between the temperature displayed by the first temperature display (5) and the temperature displayed by the second temperature display (6) is less than 2 ℃, the first thermocouple (3) or the second thermocouple (4) does not need to be calibrated;
(2) when the temperature difference between the temperature displayed by the first temperature display (5) and the temperature displayed by the second temperature display (6) is 2-5 ℃, measuring the temperature of the hot well (7) by using the probe type thermodetector, and correcting the temperature detected by the first thermocouple (3) according to the temperature of the hot well (7) to ensure that the displayed temperature of the first temperature display (5) is consistent with the temperature of the hot well (7);
(3) when the temperature difference between the temperature displayed by the first temperature display (5) and the temperature measured by the probe type temperature measuring instrument of the hot well (7) exceeds 5 ℃, the first thermocouple (3) is proved to be in failure, the vulcanization temperature of the tire blank deviates from the standard, and the qualified first thermocouple (3) needs to be replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010790178.6A CN111982356A (en) | 2020-08-07 | 2020-08-07 | Thermocouple fault diagnosis system and method for tire vulcanizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010790178.6A CN111982356A (en) | 2020-08-07 | 2020-08-07 | Thermocouple fault diagnosis system and method for tire vulcanizer |
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| Publication Number | Publication Date |
|---|---|
| CN111982356A true CN111982356A (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010790178.6A Pending CN111982356A (en) | 2020-08-07 | 2020-08-07 | Thermocouple fault diagnosis system and method for tire vulcanizer |
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| CN (1) | CN111982356A (en) |
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2020
- 2020-08-07 CN CN202010790178.6A patent/CN111982356A/en active Pending
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