CN201530833U - Digital water temperature difference real-time distributed measuring device on blast furnace cooling wall - Google Patents
Digital water temperature difference real-time distributed measuring device on blast furnace cooling wall Download PDFInfo
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- CN201530833U CN201530833U CN2009202464255U CN200920246425U CN201530833U CN 201530833 U CN201530833 U CN 201530833U CN 2009202464255 U CN2009202464255 U CN 2009202464255U CN 200920246425 U CN200920246425 U CN 200920246425U CN 201530833 U CN201530833 U CN 201530833U
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Abstract
The utility model relates to a digital water temperature difference real-time distributed measuring device on a blast furnace cooling wall, which belongs to the technical field of blast furnace water temperature measurement. The device comprises temperature sensors, transmission buses, two-wire serial buses, second-level microprocessors and an upper computer; each second-level microprocessor is respectively connected with 1 to 8 terminal temperature sensors by adopting the two-wire serial bus; and each second-level microprocessor is connected with the upper computer through the transmission bus after collecting and encapsulating data. The device has the advantages that the transmission error rate can be effectively reduced, and the problem of error accumulation of a plurality of modules of a temperature acquisition circuit can be restrained, and by adopting industrial buses to integrate an HUB interface, lightning stroke and interference, short-circuit protection and open circuit protection are prevented, and the communication is ensured to be reliable and stable.
Description
Technical field
The utility model belongs to blast furnace temperature measurement technical field, particularly relate to the real-time collecting and distributing measuring apparatus of the digital water temperature difference of a kind of blast furnace cooling stave, the Inlet and outlet water temperature difference in the blast furnace cooling stave is carried out real-time collecting and distributing measurement, can infer the operation of blast furnace situation by measuring cooling range in real time.
Background technology
At present, known water temperature difference is measured main two classes of dividing: single-point hand-held temperature measurement instrument and multiple spot automatic real-time measurement system.The electric bridge that two class devices substantially all are made of hot resistance, amplifier circuit, analog to digital converter, transport module and digital display module constitute.The hand-held temperature measuring set of single-point could reading after having increased workman's work and having needed numerical stability.And common multiple spot automatic real-time measurement system since the blast furnace particular surroundings all the hot resistance electric bridge often need the compensation wire that is uneven in length, so just the electric bridge to different measuring point has constituted different original errors, and compensation wire is interfered simultaneously can influence temperature survey.Above-mentioned two kinds of circuit are made of a lot of modules, and each module can both cause the accumulation to measuring error, and misarrangement point was unfavorable for system maintenance too much when modular circuit was made mistakes too much.In addition, each point all needs compensation wire during multimetering, and compensation wire is also easy care not too much.
Summary of the invention
The purpose of this utility model is to provide the digital water temperature difference of a kind of blast furnace cooling stave real-time collecting and distributing measuring apparatus, has overcome that transmission analog temperature signal is subjected to the interferential problem easily on the sum of errors circuit that existing measuring system multimetering system hot resistance compensation wire intrinsic resistance causes; Maintain easily simultaneously and signal more reliablely and stablely transmission in the line.
The utility model comprises temperature sensor, transfer bus, two wire system universal serial bus, secondary microprocessor, upper computer; Each secondary microprocessor uses the two wire system universal serial bus to connect 1～8 terminal temperature transmitter respectively, is connected to upper computer by transfer bus (adopting the industrial series bus) behind each secondary microprocessor image data and the encapsulation of data.
Temperature sensor is digital temperature sensors of high precision, temperature sensor the is integrated interface circuit of hot resistance place electric bridge, operational amplification circuit, analog to digital conversion circuit, power supply stabilization circuit and transmitter and microprocessor communication.
Transfer bus adopts integrated buffer circuit.
The secondary microprocessor is integrated into peripheral circuit in the temperature sensor circuit; The temperature sensor terminal adopts digital temperature sensor, and a plurality of digital temperature sensor output serial signal line are received on the universal serial bus and linked microcontroller; Connect the 15V high pressure by pull-up resistor on the universal serial bus, digital temperature sensor adopts 13 bit A/D converters; Adopt integrated buffer circuit on the universal serial bus, prolonged signal transmission distance; Microprocessor and main frame pass through the industrial bus transmission signal, and have adopted the industrial bus buffer circuit, isolate for all micro-controller communications ports all provide the photoelectricity more than the 3000V, and all microprocessor ports all are provided with the short circuit open-circuit-protection.
The beneficial effects of the utility model are; can effectively reduce transmission error rates and suppress temperature collection circuit multimode error accumulation problem, and adopt the integrated HUB interface of industrial bus, accomplish to prevent thunderbolt and interference; short circuit and open-circuit-protection ensure that reliable communications is stable.Be subject to the interferential module in the middle of not only having reduced on a large scale, and adopt digital temperature sensor to improve temperature measurement accuracy, all circuits adopt numerary signal to communicate by letter, and adopt universal serial bus.The reliably also measurement of high-acruracy survey blast furnace cooling stave water temperature difference in real time, and, simple in structure, good in anti-interference performance.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the microprocessor peripheral structure synoptic diagram of single thermometric network.
Fig. 3 is a secondary microcontroller circuit synoptic diagram.
Embodiment
Fig. 1～Fig. 3 is a kind of embodiment of the present invention.
The utility model comprises temperature sensor, transfer bus, two wire system universal serial bus, secondary microprocessor, upper computer.Each secondary microprocessor uses the two wire system universal serial bus to connect 1～8 terminal temperature transmitter respectively, is connected to upper computer by transfer bus (adopting the industrial series bus) behind each secondary microprocessor image data and the encapsulation of data.Upper computer is patrolled and examined each secondary microprocessor by time variable control and is read temperature sensor temperature data under each secondary microprocessor, has patrolled and examined the temperature signal that all secondary microprocessors have just collected all temperature sensors.
Temperature sensor is digital temperature sensors of high precision, temperature sensor the is integrated interface circuit of hot resistance place electric bridge, operational amplification circuit, analog to digital conversion circuit, power supply stabilization circuit and transmitter and microprocessor communication; The direct output packet of interface contains the numerary signal of temperature information; 1～8 sensor signal output terminal is incorporated into a two wire system universal serial bus and microcontroller carries out data and order exchange.
Transfer bus adopts integrated buffer circuit, effectively prevents external interference, reduces the error rate.
Secondary microcontroller peripheral circuit is thoroughly abandoned bridge diagram, and discharge circuit network and analog-to-digital conversion circuit have reduced middle-chain, provide convenience for maintenance, and peripheral circuit is integrated in the temperature sensor circuit.The temperature sensor terminal adopts digital temperature sensor, and digital temperature sensor is directly output as the packaged numerary signal that comprises temperature information by string line; A plurality of digital temperature sensor output serial signal line are received on the universal serial bus and are linked microcontroller, upload temperature data, connect the 15V high pressure by pull-up resistor on the universal serial bus, have saved circuit like this, have also reduced the error rate of numerary signal on the circuit.Digital temperature sensor adopts 13 bit A/D converters, has significantly improved measuring accuracy, and precision can reach 1/32 ℃.For reduce the error rate as far as possible, adopt integrated buffer circuit on the universal serial bus, prolonged signal transmission distance, improve the interference free performance of signal.Microprocessor and main frame are by the industrial bus transmission signal; and adopted the industrial bus buffer circuit; for all providing the photoelectricity more than the 3000V, all micro-controller communications ports isolate; solved the transmission problem that the blast furnace scene is brought by distance and ground potential difference effectively; all microprocessor ports all are provided with the short circuit open-circuit-protection; guarantee that the port that goes wrong will be isolated, to guarantee that other transmitter belonging network can works better when one of them port device fault produces.Whole collecting and distributing temperature measuring system is made of several thermometric networks among Fig. 1, and the network number is decided on the measurement point number.Each thermometric network (see figure 2) mainly constitutes by string line buffer circuit, microcontroller with by the sensor groups of its control, the string line buffer circuit plays the effect that prolongs transmission length and enhancing signal, and string line adds 15V voltage to reduce transmission error rates by pull-up resistor.Each transmitter constitutes the temperature of being responsible for measuring a water-cooled tube, the different transmitter of each controller control number, and concrete number is looked concrete situation.The digital temperature signal of each transmitter output is by the unified string line that inserts a two-wire system of string line of two-wire system, and carries out data stream and command stream exchange with microcontroller, sees Fig. 2; Microprocessor takes turns to control the transmitter image data, finish and gather that sensing data then adds data head and CRC check to institute's image data in the all-network, wait for the main frame stream that says the word, upload data command then upload temperature data to main frame if receive orders and judge.In the schematic circuit, microprocessor uses industrial bus to communicate by letter with upper computer among Fig. 3, uses string line to communicate by letter with temperature sensor.
Different thermometric network collection temperature datas is by the encapsulation of the microcontroller of place network and add data head and CRC check, and flows and data stream by industrial bus and main frame exchange command.
Claims (5)
1. the real-time collecting and distributing measuring apparatus of the digital water temperature difference of blast furnace cooling stave is characterized in that, comprises temperature sensor, transfer bus, two wire system universal serial bus, secondary microprocessor, upper computer; Each secondary microprocessor uses the two wire system universal serial bus to connect 1～8 terminal temperature transmitter respectively, is connected to upper computer by transfer bus behind each secondary microprocessor image data and the encapsulation of data.
2. measuring apparatus according to claim 1, it is characterized in that, temperature sensor is digital temperature sensors of high precision, temperature sensor the is integrated interface circuit of hot resistance place electric bridge, operational amplification circuit, analog to digital conversion circuit, power supply stabilization circuit and transmitter and microprocessor communication.
3. measuring apparatus according to claim 1 is characterized in that transfer bus adopts integrated buffer circuit.
4. measuring apparatus according to claim 1 is characterized in that the secondary microprocessor is integrated into peripheral circuit in the temperature sensor circuit; The temperature sensor terminal adopts digital temperature sensor, and a plurality of digital temperature sensor output serial signal line are received on the universal serial bus and linked microcontroller; Connect the 15V high pressure by pull-up resistor on the universal serial bus, digital temperature sensor adopts 13 bit A/D converters; Adopt integrated buffer circuit on the universal serial bus, prolonged signal transmission distance; Microprocessor and main frame pass through the industrial bus transmission signal, and have adopted the industrial bus buffer circuit, isolate for all micro-controller communications ports all provide the photoelectricity more than the 3000V, and all microprocessor ports all are provided with the short circuit open-circuit-protection.
5. measuring apparatus according to claim 1 is characterized in that, described transfer bus adopts the industrial series bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202464255U CN201530833U (en) | 2009-10-28 | 2009-10-28 | Digital water temperature difference real-time distributed measuring device on blast furnace cooling wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202464255U CN201530833U (en) | 2009-10-28 | 2009-10-28 | Digital water temperature difference real-time distributed measuring device on blast furnace cooling wall |
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| Publication Number | Publication Date |
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| CN201530833U true CN201530833U (en) | 2010-07-21 |
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| CN2009202464255U Expired - Lifetime CN201530833U (en) | 2009-10-28 | 2009-10-28 | Digital water temperature difference real-time distributed measuring device on blast furnace cooling wall |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081377A (en) * | 2010-11-25 | 2011-06-01 | 电子科技大学 | Thermal error compensation device on basis of numerical control workbench |
| CN102322970A (en) * | 2011-06-10 | 2012-01-18 | 武汉钢铁(集团)公司 | Automatic detection and analysis system for temperatures at multiple points of coke oven baking |
| CN103436650A (en) * | 2013-09-16 | 2013-12-11 | 马鞍山市安工大工业技术研究院有限公司 | Thermal load wireless detection system of high precision blast furnace and detection method thereof |
| CN113444851A (en) * | 2021-06-28 | 2021-09-28 | 中冶赛迪重庆信息技术有限公司 | Blast furnace cooling wall water temperature difference detection system, method, medium and electronic terminal |
-
2009
- 2009-10-28 CN CN2009202464255U patent/CN201530833U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081377A (en) * | 2010-11-25 | 2011-06-01 | 电子科技大学 | Thermal error compensation device on basis of numerical control workbench |
| CN102322970A (en) * | 2011-06-10 | 2012-01-18 | 武汉钢铁(集团)公司 | Automatic detection and analysis system for temperatures at multiple points of coke oven baking |
| CN102322970B (en) * | 2011-06-10 | 2014-06-04 | 武汉钢铁(集团)公司 | Automatic detection and analysis system for temperatures at multiple points of coke oven baking |
| CN103436650A (en) * | 2013-09-16 | 2013-12-11 | 马鞍山市安工大工业技术研究院有限公司 | Thermal load wireless detection system of high precision blast furnace and detection method thereof |
| CN104046713A (en) * | 2013-09-16 | 2014-09-17 | 马鞍山市安工大工业技术研究院有限公司 | High-precision wireless blast furnace thermal load detection method |
| CN104046713B (en) * | 2013-09-16 | 2015-11-18 | 马鞍山市安工大工业技术研究院有限公司 | A kind of high precision blast furnace heat load method for wirelessly testing |
| CN113444851A (en) * | 2021-06-28 | 2021-09-28 | 中冶赛迪重庆信息技术有限公司 | Blast furnace cooling wall water temperature difference detection system, method, medium and electronic terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING SHOUGANG CO., LTD. Free format text: FORMER OWNER: HEBEI SHOUGANG QIAN'AN STEEL CO., LTD. Effective date: 20140408 Free format text: FORMER OWNER: CAPITAL IRON + STEEL GENERAL CO. Effective date: 20140408 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 064404 TANGSHAN, HEBEI PROVINCE TO: 100041 SHIJINGSHAN, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140408 Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Beijing Shougang Co., Ltd. Address before: Yangzidian Town, Qian'an City, Hebei province 064404 Patentee before: Hebei Shougang Qian'an Steel Co., Ltd. Patentee before: Capital Iron & Steel General Company |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |
|
| CX01 | Expiry of patent term |