CN111060222A - Automatic sending device and method for measuring channel resistance value of temperature transmitter - Google Patents
Automatic sending device and method for measuring channel resistance value of temperature transmitter Download PDFInfo
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- CN111060222A CN111060222A CN201911299972.4A CN201911299972A CN111060222A CN 111060222 A CN111060222 A CN 111060222A CN 201911299972 A CN201911299972 A CN 201911299972A CN 111060222 A CN111060222 A CN 111060222A
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- resistance value
- temperature
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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
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/017—Inspection or maintenance of pipe-lines or tubes in nuclear installations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
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- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention belongs to the technical field of temperature measurement, and particularly relates to an automatic transmission device and method for a temperature transmitter measuring channel resistance value. The invention comprises a cable joint, a connecting cable, a resistance box, a display screen, a temperature range setting key, an interval time setting key, a unit setting key and an information inquiry key, wherein the cable joint is connected with the resistance box through the connecting cable; the resistance box panel is provided with a temperature range setting key, an interval time setting key, a unit setting key and an information inquiry key which are arranged in parallel, and the resistance box panel is also provided with a display screen. The invention can safely, quickly, effectively and correctly finish the precision verification work of the measurement channel of the temperature transmitter.
Description
Technical Field
The invention belongs to the technical field of temperature measurement, and particularly relates to an automatic transmission device and method for a temperature transmitter measuring channel resistance value.
Background
In industrial application, the temperature transmitter has higher reaction speed than a common conventional thermal resistance thermometer, can quickly measure the temperature value of a process system or equipment, and is very widely applied. The temperature transmitter is generally divided into two parts, namely an in-situ temperature probe and a secondary instrument, and can rapidly measure the temperature value of a process system or equipment. For some systems for protecting the safety of the production process, the precision of a measurement channel of a temperature transmitter needs to be verified regularly, and the precision of the temperature measurement loop channel is ensured to meet the requirement. And a general instrument control person regularly removes the instrument wiring from the secondary instrument side of the temperature transmitter and accesses the resistance box. And calculating a resistance value according to the measuring range of the temperature transmitter, sequentially setting the resistance value in the resistance box, sending the resistance value to the upper control system through the secondary instrument, comparing the resistance value with the output temperature value of the upper control system, and comparing whether the difference value of the resistance value and the output temperature value is within an error allowable range, so as to verify that the precision of the measuring loop channel of the temperature transmitter meets the requirement. In the actual working process, each resistance value of the temperature transmitter needs to be calculated manually, the resistance value of the resistance box is adjusted manually, the risk of manual errors is high, and instrument control personnel cannot work in places for a long time in places such as high temperature, high pressure and high radioactivity, so that the inconvenience is brought to the work of the field instrument control personnel.
Taking a certain nuclear power station as an example, a temperature transmitter is adopted to measure the temperature of a main pipeline of a loop, in order to ensure that the precision of the loop measured by the temperature transmitter meets the requirement, instrument control personnel carry out precision verification during the overhaul of a unit, an instrument connector is pulled out from the secondary side of an instrument of the temperature transmitter, a resistance box is used for manually adjusting the resistance value according to the measuring range of the temperature transmitter, the precision verification of the loop measured by the temperature transmitter is completed, in the working process, the condition that the resistance value of the temperature transmitter is mistakenly calculated or the resistance value of the resistance box is mistakenly adjusted appears for many times, part of secondary meters of the temperature transmitter are installed around a medium with high radioactivity, and the.
At present, an automatic sending device for the resistance value of the temperature transmitter measuring channel is urgently needed, and the precision verification work of the temperature transmitter measuring channel can be safely, quickly, effectively and correctly completed.
Disclosure of Invention
The technical problems solved by the invention are as follows:
the invention provides an automatic sending device and method for the resistance value of a temperature transmitter measuring channel, which can safely, quickly, effectively and correctly finish the precision verification work of the temperature transmitter measuring channel.
The technical scheme adopted by the invention is as follows:
an automatic sending device for measuring channel resistance of a temperature transmitter comprises a cable joint, a connecting cable, a resistance box, a display screen, a temperature range setting key, an interval time setting key, a unit setting key and an information inquiry key, wherein the cable joint is connected with the resistance box through the connecting cable; the resistance box panel is provided with a temperature range setting key, an interval time setting key, a unit setting key and an information inquiry key which are arranged in parallel, and the resistance box panel is also provided with a display screen.
The connecting cable is adjustable in length.
The temperature range of the temperature transmitter is input through the temperature range setting key, and the resistance value is automatically converted according to the temperature range.
The time for automatically adjusting the resistance value is set by the interval time setting key.
The unit setting key sets the temperature unit and the resistance value unit in the whole work to be a unified unit.
The resistance value set in each time period can be called up through the information inquiry key.
A method for automatically sending a resistance value of a measuring channel of a temperature transmitter comprises the following steps:
step one, connecting a cable joint with a resistance box through a connecting cable, wherein the cable joint is connected with the side of a secondary instrument;
setting the temperature unit and the resistance value unit in the whole work into a uniform unit through a unit setting key in the resistance box;
inputting the temperature range of the temperature transmitter through a temperature range setting key, automatically converting the temperature range into a resistance value according to the temperature range, and displaying the resistance value in a display screen;
setting time for automatically adjusting the resistance value through an interval time setting key according to the actual working requirement, displaying a plurality of lines by a display screen, and simultaneously displaying and recording the temperature value corresponding to the resistance value in real time;
and step five, the resistance value set in each time period can be called through the information inquiry key.
The invention has the beneficial effects that:
(1) according to the automatic sending device for the resistance value of the temperature transmitter measuring channel, the cable joint is matched with the secondary instrument side joint for use, so that the working time is saved;
(2) in the automatic sending device for the resistance value of the temperature transmitter measuring channel, the length of the connecting cable can be set according to the actual needs of the field, and for a factory building with a severe operating environment, the resistance box can be led to a place with a good environment by using a long cable, so that the risk of the operating environment is effectively reduced;
(3) in the automatic sending device for the resistance value of the temperature transmitter measuring channel, the resistance box can automatically calculate the corresponding resistance value according to the measuring range of the temperature transmitter, and the automation intensity is high;
(4) in the automatic sending device for the resistance value of the temperature transmitter measuring channel, the resistance box can automatically adjust the resistance value according to the set time, so that the manual operation is reduced, and the human resources are saved;
(5) in the automatic sending device for the resistance value of the measuring channel of the temperature transmitter, the display screen of the resistance box can display the resistance value and the corresponding temperature value in multiple lines in real time, and the intuition is strong;
(6) in the automatic sending device for the resistance value of the temperature transmitter measuring channel, the resistance box calls the resistance values in different time periods according to the recording function, so that the practicability is high.
Drawings
FIG. 1 is a schematic structural diagram of an automatic transmission device for measuring channel resistance of a temperature transmitter;
in the figure: 1-a cable joint; 2-connecting a cable; 3-a resistance box; 4-a display screen; 5-temperature range setting key; 6-Interval time setting key; 7-unit set key; 8-information inquiry key.
Detailed Description
The following describes an automatic transmission device and method for measuring channel resistance of a temperature transmitter according to the present invention in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the automatic sending device for the resistance value of the temperature transmitter measuring channel provided by the invention comprises a cable connector 1, a connecting cable 2, a resistor box 3, a display screen 4, a temperature range setting key 5, an interval time setting key 6, a unit setting key 7 and an information inquiry key 8, wherein the cable connector 1 is connected with the resistor box 3 through the connecting cable 2, and the connecting cable 2 determines the length according to actual requirements; the panel of the resistance box 3 is provided with a temperature range setting key 5, an interval time setting key 6, a unit setting key 7 and an information inquiry key 8 which are arranged in parallel, and the panel of the resistance box 3 is also provided with a display screen 4.
The invention provides an automatic sending method for measuring the resistance value of a channel by a temperature transmitter, which comprises the following steps:
step one, connecting a cable joint 1 with a resistance box 3 through a connecting cable 2, wherein the cable joint 1 is connected with the side of a secondary instrument;
setting the temperature unit and the resistance value unit in the whole work into a uniform unit through a unit setting key 7 in the resistance box 3;
inputting the temperature range of the temperature transmitter through a temperature range setting key 5, automatically converting the temperature range into a resistance value according to the temperature range, and displaying the resistance value in a display screen 4;
setting time for automatically adjusting the resistance value through an interval time setting key 6 according to the actual working requirement, displaying a plurality of lines by the display screen 4, and simultaneously displaying the temperature value corresponding to the resistance value in real time and recording the temperature value;
and step five, the resistance value set in each time period can be called through the information inquiry key 8.
The present invention has been described in detail with reference to the drawings and the actual operation, but the present invention is not limited to the above-described operation, and various changes, including changes in size, etc., can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. The prior art can be used for the content which is not described in detail in the present invention.
Claims (7)
1. The utility model provides a temperature transmitter measuring channel resistance automatic sending device which characterized in that: the temperature-measuring device comprises a cable connector (1), a connecting cable (2), a resistance box (3), a display screen (4), a temperature range setting key (5), an interval time setting key (6), a unit setting key (7) and an information inquiry key (8), wherein the cable connector (1) is connected with the resistance box (3) through the connecting cable (2); the panel of the resistance box (3) is provided with a temperature range setting key (5), an interval time setting key (6), a unit setting key (7) and an information inquiry key (8) which are arranged in parallel, and the panel of the resistance box (3) is also provided with a display screen (4).
2. The automatic transmission device of the resistance value of the measuring channel of the temperature transmitter according to claim 1, characterized in that: the connecting cable (2) is adjustable in length.
3. The automatic transmission device of the resistance value of the measuring channel of the temperature transmitter according to claim 1, characterized in that: the temperature range of the temperature transmitter is input through a temperature range setting key (5), and the temperature range is automatically converted into a resistance value according to the temperature range.
4. The automatic transmission device of the resistance value of the measuring channel of the temperature transmitter according to claim 1, characterized in that: the time for automatically adjusting the resistance value is set by an interval time setting key (6).
5. The automatic transmission device of the resistance value of the measuring channel of the temperature transmitter according to claim 1, characterized in that: the unit setting key (7) sets the temperature unit and the resistance value unit in the whole work to be a uniform unit.
6. The automatic transmission device of the resistance value of the measuring channel of the temperature transmitter according to claim 1, characterized in that: the resistance value set in each time period can be called up through the information inquiry key (8).
7. The method for the automatic transmission of the resistance value of the temperature transmitter measuring channel according to any one of claims 1 to 6, wherein: the method comprises the following steps:
step one, connecting a cable joint (1) with a resistance box (3) through a connecting cable (2), wherein the cable joint (1) is connected with the side of a secondary instrument;
setting the temperature unit and the resistance value unit in the whole work into a unified unit through a unit setting key (7) in the resistance box (3);
inputting the temperature range of the temperature transmitter through a temperature range setting key (5), automatically converting the temperature range into a resistance value according to the temperature range, and displaying the resistance value in a display screen (4);
setting time for automatically adjusting the resistance value through an interval time setting key (6) according to the actual working requirement, displaying a plurality of lines by a display screen (4), and simultaneously displaying the temperature value corresponding to the resistance value in real time and recording the temperature value;
and step five, the resistance value set in each time period can be called through the information inquiry key (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911299972.4A CN111060222A (en) | 2019-12-17 | 2019-12-17 | Automatic sending device and method for measuring channel resistance value of temperature transmitter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911299972.4A CN111060222A (en) | 2019-12-17 | 2019-12-17 | Automatic sending device and method for measuring channel resistance value of temperature transmitter |
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| Publication Number | Publication Date |
|---|---|
| CN111060222A true CN111060222A (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911299972.4A Pending CN111060222A (en) | 2019-12-17 | 2019-12-17 | Automatic sending device and method for measuring channel resistance value of temperature transmitter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112433094A (en) * | 2020-09-29 | 2021-03-02 | 中国航发沈阳黎明航空发动机有限责任公司 | Quick inspection table of engine exhaust temperature thermocouple resistance |
-
2019
- 2019-12-17 CN CN201911299972.4A patent/CN111060222A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112433094A (en) * | 2020-09-29 | 2021-03-02 | 中国航发沈阳黎明航空发动机有限责任公司 | Quick inspection table of engine exhaust temperature thermocouple resistance |
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