CN103954371B - Method for early warning and electric thermo-couple temperature monitor that electric thermo-couple protector is damaged - Google Patents
Method for early warning and electric thermo-couple temperature monitor that electric thermo-couple protector is damaged Download PDFInfo
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Abstract
Method for early warning and a kind of electric thermo-couple temperature monitor that the present invention is damaged suitable for field of metallurgy there is provided a kind of electric thermo-couple protector, methods described include：Under normal production scenarios, the thermal voltage exported according to thermocouple measures the G-bar of temperature change；Real-time monitoring temperature change, under at a time, when temperature change slope, range of temperature, temperature oscillation frequency are more than expected, outputting alarm signal.The present invention is by monitoring temperature change slope, range of temperature and judging whether temperature fluctuates back and forth; when being satisfied by anticipated conditions; then send the early warning of electric thermo-couple protector damage; show that the electric thermo-couple protector being in hot environment has been damaged; to notify maintenance personal to change protection device in time, finally it is not damaged by the thermocouple thermo wires of costliness.
Description
Technical field
The invention belongs to the method for early warning and thermocouple temperature of field of metallurgy, more particularly to a kind of damage of electric thermo-couple protector
Spend monitor.
Background technology
For the hot-blast stove vault thermometric of metallurgy industry, temperature detection is generally carried out using noble-metal thermocouple, due to heat
The temperature of wind furnace vault and hot-blast main may be up to 1300 DEG C, and pressure does not stop to wash away heat for 0.2~0.3MPa hot blast
The protection device of galvanic couple, so thermocouple is often damaged.In early stage, due to knowing that electric thermo-couple protector damages information not
In time, it will usually cause whole thermocouple to be scrapped.
The content of the invention
In view of the above problems, the method for early warning and heat damaged it is an object of the invention to provide a kind of electric thermo-couple protector
Galvanic couple temperature monitor, it is intended to which solving prior art can not know that the technology of the damage information of electric thermo-couple protector is asked in time
Topic.
On the one hand, methods described comprises the steps：
Under normal production scenarios, the thermal voltage exported according to thermocouple measures the G-bar of temperature change；
Real-time monitoring temperature change, under at a time, temperature change slope, range of temperature, temperature oscillation frequency
When rate is more than expected, outputting alarm signal.
On the other hand, the electric thermo-couple temperature monitor includes：
G-bar computing module, under normal production scenarios, the thermal voltage exported according to thermocouple to measure temperature
The G-bar of change；
Temperature judges output module, for the change of real-time monitoring temperature, under at a time, temperature change slope, temperature
When spending amplitude of variation, temperature oscillation frequency more than being expected, outputting alarm signal.
The beneficial effects of the invention are as follows：The thermal voltage signal monitoring temperature change that the present invention is exported in real time according to thermocouple,
When temperature change slope, range of temperature and temperature oscillation frequency are all higher than being expected, then outputting alarm signal, illustrates this
When electric thermo-couple protector occur in that failure, so that maintenance personal changes protection device in time, finally make the thermocouple of costliness even
Silk is not damaged by.
Brief description of the drawings
Fig. 1 is the flow chart for the method for early warning that the electric thermo-couple protector that first embodiment of the invention is provided is damaged；
Fig. 2 is the flow chart for the method for early warning that the electric thermo-couple protector that second embodiment of the invention is provided is damaged；
Fig. 3 is the block diagram for the electric thermo-couple temperature monitor that third embodiment of the invention is provided；
Fig. 4 is the block diagram for the electric thermo-couple temperature monitor that fourth embodiment of the invention is provided.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In order to illustrate technical solutions according to the invention, illustrated below by specific embodiment.
Embodiment one：
Fig. 1 shows the flow for the method for early warning that the electric thermo-couple protector that first embodiment of the invention is provided is damaged, and is
It is easy to illustrate to illustrate only the part related to the embodiment of the present invention.
The method for early warning that the galvanic couple protection device that the present embodiment is provided is damaged comprises the steps：
Step S101, under normal production scenarios, the thermal voltage exported according to thermocouple measures the average oblique of temperature change
Rate.
Thermocouple is placed in protection device, and protection device is mainly used for thermocouple being isolated from the outside, and increases thermocouple
Service life, when protection device break down or damage when, thermocouple is easy to go wrong.Thermocouple is temperature measuring set
The temperature element commonly used in table, its general principle is the material conductor composition closed-loop path of two kinds of different components, when two ends are present
Electric current is just had during thermograde, in loop to pass through, and now be there is thermo-electromotive force between two ends, is then surveyed by electric meter
Thermo-electromotive force, can be converted into the temperature of measured medium by calorimetric electromotive force.In this step, by temperature monitor to hot-blast stove
Vault thermocouple gathers defeated thermal voltage signal and handled, and is converted into corresponding temperature, then calculates vault and is normally producing
In the case of the temperature change slope that rises, decline, and these slopes are averaged, are designated as G-bar.
Step S102, the change of real-time monitoring temperature, under at a time, temperature change slope, range of temperature, temperature
When spending frequency of oscillation more than being expected, outputting alarm signal.
Free end and working end, which exist, in thermocouple will produce corresponding thermo-electromotive force in temperature difference, galvanic couple loop, if
Protection device（Generally protection pipe）Infiltration is leaked out, then the temperature of free end is relative in advance, the temperature difference of free end and working end
Reduce, and inleakage is bigger, and the temperature of free end is bigger, and the temperature difference of free end and working end is just smaller；Due to infiltration leakage
Wind, hot blast play back and forth in protection pipe so that the temperature difference of free end and working end does not stop fluctuation, the thermo-electromotive force of correspondence output
Also change therewith, be presented as that temperature is first reduced in temperature monitor, then in rise, be further continued for reduction, do not stop back and forth
Repeatedly.Therefore in this step, slope, range of temperature and temperature oscillation frequency are changed by monitoring dome temperature, when
When its value exceedes expected, then it can assert that protection device is damaged, and sends alarm, so that maintenance personal changes protection dress in time
Put so that expensive thermocouple thermo wires is not damaged by.
Embodiment two：
Fig. 2 shows the flow for the method for early warning that the electric thermo-couple protector that second embodiment of the invention is provided is damaged, and is
It is easy to illustrate to illustrate only the part related to the embodiment of the present invention.
The method for early warning that the galvanic couple protection device that the present embodiment is provided is damaged comprises the steps：
Step S201, under normal production scenarios, the thermal voltage exported according to thermocouple measures the average oblique of temperature change
Rate.
This step is identical with step S101 in embodiment one, and here is omitted.
Step S202, real-time monitoring temperature change, at regular intervals interval calculation temperature change slope；
Step S203, judge whether Current Temperatures change slope is more than default slope threshold value；
If step S204, being more than default slope threshold value, determine whether whether Current Temperatures amplitude of variation is more than default
Temperature threshold；
If step S205, be more than preset temperature threshold value, determine whether temperature whether in change in oscillation；
Step S206, when temperature be change in oscillation when, outputting alarm signal.
Above-mentioned steps S202-S206 specifically discloses a kind of specific preferred embodiment of step S102 in embodiment one,
Temperature monitor is spaced collecting temperature at regular intervals, and calculates temperature change slope.If Current Temperatures change slope is more than
Default slope threshold value（Such as 2 times of the G-bar）, determine whether whether Current Temperatures amplitude of variation is more than default temperature
Spend threshold value（Such as the 10% of thermocouple full scale）, when more than the preset temperature threshold value, determine whether whether temperature is shaking
Swing change；If so, then outputting alarm signal prompt maintenance personal protection device goes wrong.In the present embodiment, the current temperature
It is Current Temperatures and the difference of previous moment temperature to spend amplitude of variation.In addition, according to current time temperature, previous moment temperature with
And previous time temperature, you can judge Current Temperatures whether in change in oscillation.
Embodiment three：
Fig. 3 shows the structure for the electric thermo-couple temperature monitor that third embodiment of the invention is provided, for convenience of description only
Show the part related to the embodiment of the present invention.
The electric thermo-couple temperature monitor that the present embodiment is provided includes：
G-bar computing module 301, under normal production scenarios, the thermal voltage exported according to thermocouple to be measured
The G-bar of temperature change；
Temperature judges output module 302, for the change of real-time monitoring temperature, under at a time, temperature change slope,
When range of temperature, temperature oscillation frequency are more than expected, outputting alarm signal.
In the present embodiment, thermocouple is spaced temperature data of collection at regular intervals, is exported twice according to adjacent
Thermal voltage, you can calculate the temperature change slope at current time, G-bar computing module 301 is getting each moment
After temperature change slope, G-bar is calculated；Temperature judges that output module 302 changes slope, temperature change by monitoring temperature
Amplitude, temperature oscillation frequency, when its value exceedes expected, then can assert that protection device is damaged, and sends alarm, to tie up
Repair personnel and change protection device in time so that expensive thermocouple thermo wires is not damaged by.
Example IV：
Fig. 4 shows the structure for the electric thermo-couple temperature monitor that fourth embodiment of the invention is provided, for convenience of description only
Show the part related to the embodiment of the present invention.
The electric thermo-couple temperature monitor that the present embodiment is provided includes：
G-bar computing module 41, under normal production scenarios, the thermal voltage exported according to thermocouple to measure temperature
Spend the G-bar of change；
Temperature judges output module 42, for the change of real-time monitoring temperature, under at a time, temperature change slope,
When range of temperature, temperature oscillation frequency are more than expected, outputting alarm signal.
Wherein described temperature judges that output module 42 includes：
Slope calculation unit SCU 421, for the change of real-time monitoring temperature, interval calculation temperature change is oblique at regular intervals
Rate；
Slope judging unit 422, for judging whether Current Temperatures change slope is more than default slope threshold value；
Amplitude judging unit 423, for when slope judging unit judges to be, determining whether Current Temperatures amplitude of variation
Whether preset temperature threshold value is more than；
Judging unit 424 is vibrated, for when amplitude judging unit judges to be, determining whether whether temperature becomes in vibration
Change；
Alert output unit 425, for when temperature be change in oscillation when, outputting alarm signal.
The present embodiment further discloses temperature on the basis of embodiment three and judges a kind of specific preferred of output module
Structure, slope variation is judged by slope judging unit 422, is changed by the interpretation temperature amplitude of amplitude judging unit 423, passed through
Vibration judging unit 424 judge temperature whether change in oscillation, when temperature change slope be more than preset slope threshold value（Such as 2 times
The G-bar）, and Current Temperatures amplitude of variation preset temperature threshold value（Such as the 10% of thermocouple full scale）, while warm
When spending for change in oscillation, then it can assert that protection device is damaged, alarm output unit 425 sends alarm, such as by indicating
Lamp is represented.
To sum up, in above-mentioned several embodiments, by monitoring temperature change slope, range of temperature and judging temperature
Whether fluctuate back and forth, when being satisfied by anticipated conditions, then send the early warning of electric thermo-couple protector damage, show to be in high temperature ring
Electric thermo-couple protector in border has been damaged, to notify maintenance personal to change protection device in time, finally makes the heat of costliness
Galvanic couple thermo wires is not damaged by.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (6)
1. the method for early warning that a kind of electric thermo-couple protector is damaged, it is characterised in that methods described includes：
Under normal production scenarios, the thermal voltage exported according to thermocouple measures the G-bar of temperature change；
Real-time monitoring temperature change, under at a time, temperature change slope, range of temperature, temperature oscillation frequency are equal
During more than being expected, outputting alarm signal；
Wherein, the real-time monitoring temperature change, under at a time, temperature change slope, range of temperature, temperature are shaken
When swinging frequency and being all higher than being expected, outputting alarm signals step is specifically included：
Real-time monitoring temperature changes, at regular intervals interval calculation temperature change slope；
Judge whether Current Temperatures change slope is more than default slope threshold value；
If more than default slope threshold value, determining whether whether Current Temperatures amplitude of variation is more than preset temperature threshold value；
If more than preset temperature threshold value, determining whether temperature whether in change in oscillation；
When temperature is change in oscillation, outputting alarm signal.
2. method as claimed in claim 1, it is characterised in that the default slope threshold value is 2 times of G-bars.
3. method as claimed in claim 2, it is characterised in that the preset temperature threshold value is the 10% of thermocouple full scale.
4. a kind of electric thermo-couple temperature monitor, it is characterised in that the electric thermo-couple temperature monitor includes：
G-bar computing module, under normal production scenarios, the thermal voltage exported according to thermocouple to measure temperature change
G-bar；
Temperature judges output module, for the change of real-time monitoring temperature, and under at a time, temperature change slope, temperature become
When change amplitude, temperature oscillation frequency are all higher than being expected, outputting alarm signal；
Wherein, the temperature judges that output module includes：
Slope calculation unit SCU, changes, at regular intervals interval calculation temperature change slope for real-time monitoring temperature；
Slope judging unit, for judging whether Current Temperatures change slope is more than default slope threshold value；
Amplitude judging unit, for when slope judging unit judges to be, determining whether whether Current Temperatures amplitude of variation is big
In preset temperature threshold value；
Judging unit is vibrated, for when amplitude judging unit judges to be, determining whether temperature whether in change in oscillation；
Alert output unit, for when temperature be change in oscillation when, outputting alarm signal.
5. electric thermo-couple temperature monitor as claimed in claim 4, it is characterised in that the default slope threshold value is 2 times described flat
Equal slope.
6. electric thermo-couple temperature monitor as claimed in claim 5, it is characterised in that the preset temperature threshold value is that thermocouple is completely measured
The 10% of journey.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289833B (en) * | 2016-07-28 | 2020-02-07 | 国网北京市电力公司 | Fault detection method and device for heat storage body |
| CN106441632B (en) * | 2016-09-07 | 2019-01-29 | 广州视源电子科技股份有限公司 | A kind of detection method of thermometer and the detection device of thermometer |
| CN109959465A (en) * | 2017-12-22 | 2019-07-02 | 中冶京诚工程技术有限公司 | Motor temperature early warning guard method, computer equipment and readable storage medium storing program for executing |
| CN111060840A (en) * | 2019-10-12 | 2020-04-24 | 威凯检测技术有限公司 | Automatic measurement method and system for lamp thermal test |
| CN112026845B (en) * | 2020-09-02 | 2022-01-28 | 中车青岛四方机车车辆股份有限公司 | Train temperature monitoring method and device, train, electronic equipment and medium |
| CN112684242A (en) * | 2020-10-26 | 2021-04-20 | 国网安徽省电力有限公司信息通信分公司 | Big data-based electric power system analysis and early warning method |
| CN112629690A (en) * | 2020-11-19 | 2021-04-09 | 上海亚泰仪表有限公司 | Weighted average temperature measurement method and sensor based on complex physicochemical treatment process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886152A (en) * | 2010-06-02 | 2010-11-17 | 河北省首钢迁安钢铁有限责任公司 | Three-dimensional unstable state monitoring and abnormity diagnosis and maintenance system of blast furnace hearth |
| CN102080569A (en) * | 2010-12-10 | 2011-06-01 | 煤炭科学研究总院重庆研究院 | Distributed optical fiber temperature measurement-based fire early warning method for belt conveyor |
| CN202092842U (en) * | 2011-05-06 | 2011-12-28 | 神华集团有限责任公司 | Sleeve monitoring device |
| CN103130095A (en) * | 2011-11-30 | 2013-06-05 | 深圳市一兆科技发展有限公司 | Elevator fault early warning method and relevant server |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0112929B1 (en) * | 1982-12-17 | 1987-05-13 | ERBÖ-MASCHINENBAU ERLEY & BÖNNINGER GMBH & CO. KG | Device for monitoring the function of belt-supporting rollers in belt conveyors |
| CN101165738A (en) * | 2006-10-19 | 2008-04-23 | 深圳市豪恩科技股份有限公司 | Infrared detecting method and method for updating threshold value |
| CN202374000U (en) * | 2011-12-14 | 2012-08-08 | 杭州市电力局 | Control device for realizing balance charging of battery pack and battery box |
-
2014
- 2014-04-11 CN CN201410145081.4A patent/CN103954371B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886152A (en) * | 2010-06-02 | 2010-11-17 | 河北省首钢迁安钢铁有限责任公司 | Three-dimensional unstable state monitoring and abnormity diagnosis and maintenance system of blast furnace hearth |
| CN102080569A (en) * | 2010-12-10 | 2011-06-01 | 煤炭科学研究总院重庆研究院 | Distributed optical fiber temperature measurement-based fire early warning method for belt conveyor |
| CN202092842U (en) * | 2011-05-06 | 2011-12-28 | 神华集团有限责任公司 | Sleeve monitoring device |
| CN103130095A (en) * | 2011-11-30 | 2013-06-05 | 深圳市一兆科技发展有限公司 | Elevator fault early warning method and relevant server |
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