CN1208604C - Temperature determining system and method for drying cokery - Google Patents
Temperature determining system and method for drying cokery Download PDFInfo
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- CN1208604C CN1208604C CN 02136325 CN02136325A CN1208604C CN 1208604 C CN1208604 C CN 1208604C CN 02136325 CN02136325 CN 02136325 CN 02136325 A CN02136325 A CN 02136325A CN 1208604 C CN1208604 C CN 1208604C
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Abstract
The present invention relates to a temperature detecting system and a method thereof for coke ovens and roasting ovens, which relates to the temperature detection of coke ovens and roasting ovens. In the temperature measuring system, a plurality of precise grade thermocouples are divided into a plurality of sets; each set of thermocouples is connected with a temperature measuring module; a converter and a server are orderly connected with the temperature measuring modules; temperature measuring time interval control programs are reserved in the server. The temperature measuring system comprises the following temperature measuring steps: a), temperature measuring points are selected in ovens according to the expansion rule of oven bodies; b), each temperature measuring point is provided with a precise grade thermocouple; c), the precise grade thermocouples are grouped according to distance, and each set of precise grade thermocouples is connected with a temperature measuring module; d), the temperature measuring modules carry out cold end redress to the precise grade thermocouples; e), the server sends out acquisition commands every fixed time period, redressed temperature is converted into pulse signals which are converted into data through the converter, and the data is stored in a database. The temperature detecting system and the method enlarge the frequency of temperature detection, enhance the precision of oven temperature detection, simultaneously reduce manual work and enhance production efficiency.
Description
Technical field
The present invention relates to temperature detection, particularly the temperature detection of heatingup of coke oven battery process.
Background technology
Before newly-built coke oven is gone into operation, must coking furnace shaft be heated to more than 1000 ℃ by normal temperature, just can formally put into production then through about eight, 90 days baker process.Usually coke oven of baking must be provided with more than 300 point for measuring temperature.Accurately detecting the real time temperature of these measuring points, is the basic assurance that realizes strictly controlling according to plan programming rate.
Traditional furnace temperature detection method is as follows:
Because the speed that low thermophase heats up is very slow, some the time every other day heat up only 3 ℃, the variation of the environment temperature of thermocouple cold junction is greater than the variation of hot-side temperature, its accuracy of detection is difficult to satisfy, therefore, furnace temperature uses alcohol thermometer to detect furnace temperature from the stage of normal temperature to 100 ℃; Furnace temperature uses mercury thermometer to detect furnace temperature 100 ℃ to 400 ℃ stage; Furnace temperature uses thermopair to detect furnace temperature 400 ℃ to 1000 ℃ stage.
The shortcoming of above-mentioned this method is: using alcohol thermometer and mercury thermometer to detect stage of furnace temperature, and when thermometer is taken out reading in stove, the phenomenon that will inevitably the occurrence temperature value descends, data precision is subjected to artificial factor big; Enter thermopair and detect furnace temperature after the stage, use the pointwise of hand-held millivoltmeter to read temperature, because measuring point is many, the frequency of measurement generally is per 4 hours 1 time, and frequency is low, and is just poor to the directiveness that furnace temperature is regulated, thereby consumption is artificial many, and production efficiency is low.
Summary of the invention
The object of the present invention is to provide a kind of system for detecting temperature and method that is used for the heatingup of coke oven battery process, the temperature change value that solves testee is less than the temperature change value of thermopair accuracy error, the testee technical matters less than the atmospheric temperature changing value same period.
Technical scheme of the present invention is achieved in that the system for detecting temperature that is used for the heatingup of coke oven battery process comprises the some micron order thermopairs that are located in the stove, these some micron order thermopairs are divided into some groups, every group connects a temperature measurement module, this temperature measurement module is provided with and uses passage, compensation channels, and the micron order thermopair is carried out cold junction compensation; Converter and the server that is connected with this temperature measurement module successively; Resident thermometric period control program in this server.
Its thermometric step is as follows:
A), in stove, select point for measuring temperature according to the furnace expansion rule;
B) each point for measuring temperature is installed a micron order thermopair;
C) the micron order thermopair is divided into groups nearby, every group connects a temperature measurement module;
D) the micron order thermopair is carried out the cold junction revisal by group;
E) by server every regular time section send acquisition instructions, become pulse signal through the temperature transition of revisal, change into data by converter, deposit in the database.
Adopt system for detecting temperature of the present invention and method, can strengthen the frequency of temperature detection, improve the precision that detects furnace temperature, reduce manually simultaneously, enhance productivity.
Description of drawings
Fig. 1 is the system for detecting temperature pie graph;
Fig. 2 is the temperature checking method process flow diagram;
Fig. 3 is the furnace temperature measuring point arrangenent diagram of heatingup of coke oven battery.
The number in the figure explanation
1-micron order K type thermopair
The 2-1AS temperature measurement module
3-RS 232/485 converter
The 4-server
The 5-client computer
Embodiment
Provide better embodiment of the present invention according to Fig. 1, Fig. 2 and Fig. 3 below, and described in detail, enable to understand better architectural feature of the present invention and function, characteristics.
See also Fig. 1 and Fig. 2, as shown in the figure, the heatingup of coke oven battery process temperature detection system of present embodiment comprises micron order K type thermopair 1,1AS temperature measurement module 2, RS232/485 converter 3, server 4 and the client computer 5 that connects successively.307 of temperature detecting point are arranged in requirement according to baker, at each temperature point 1 micron order K type thermopair are set, and per 4～7 micron order K type thermopairs connect mutually with 1 1AS temperature measurement module 2.1AS temperature measurement module 2 is through sampling processing, the detected temperature of micron order K type thermopair is carried out the cold junction revisal, and make it to be transformed into pulse signal, use the IAS telecommunication, by the RS-485 bus, server 4 per 3 minutes collection 1 secondary data are stored in the database, and on client computer 5, show the data of collecting, reference when supplying baker to heat up adjusting.
Also can dispose two RS232/485 converters in the above-mentioned temp measuring system, server 4 can relative set become redundancy structure with client computer 5.
Implementation process of the present invention is as follows: as shown in Figure 3, according to the rule of furnace expansion, we have selected 353 measuring points at full stove, remove the measuring point of part repeat function, and actual measuring point is 307.Resistance wall is provided with 6 measuring points, atmospheric temperature is provided with 2 measuring points, and 238 measuring points have been selected in the high-temperature region when all the other measuring point emphasis are arranged in upper of furnace body production in 1632 flues of upper of furnace body, remove the measuring point of part repeat function, actual measuring point is 210.Wherein:
1. the management flue that is used to control full stove programming rate is 104, and selected principle is: be uniformly distributed in full stove, emphasis is considered burner and stove end.Specifically be arranged in the 1# writing paper and add respectively 1,3,9,14,19,24,30,32 flues of 2 each firing chamber (totally 13 firing chambers) of two ends.
2. the flue that is used to check the mean flue temperature of full stove longitudinal temperature is 102, and selected principle is: machine, each flue of coke side middle part.Specifically be arranged in the 9th flue of coke side and the 24th flue of pusher side.
3. the flue that is used to check the cross wall temperature of full stove transverse temperature is 32, and selected principle is: a firing chamber at coke oven middle part.Specifically be arranged in 32 flues of No. 26 firing chamber.
Vertically evenly distribute according to full stove in the bottom of body of heater then, take into account the principle of burner and stove end and selected 107 measuring points, remove the measuring point of part repeat function, actual measuring point is 89.Wherein:
1. be used to check that full stove height is 40 to the measuring point of the brick gas passage temperature of temperature;
2. be used to check that the measuring point of full fire grate brick temperature is 24;
3. be used to check that the measuring point of full stove downward modulation hole temperature is 6;
4. be used to check that the measuring point of full stove bottom flue temperature is 12;
5. dividing the flue measuring point is 2, and the main chimney flue measuring point is 1, and the atmospheric temperature measuring point is 4.
The system that adopts constitutes as shown in Figure 1.Concrete method is: the oven drying temperature check point of 5A coke oven is 307 points, and is selected as above-mentioned method.A micron order K type thermopair 1 is set on each check point.Every 4-7 props up micron order K type thermopair 1 and takes shared principle nearby, connects with an IAS temperature measurement module 2.66 temperature measurement modules 2 have been used in the native system altogether.Each temperature measurement module 2 is totally 8 passages, and using passage is 7, can connect 7 thermopairs, and the another one passage is a compensation channels.The end of micron order K type thermopair 1 is drawn the use passage that compensating wire is received temperature measurement module 2.The power supply that uses on each temperature measurement module 2 is 12VDC, and it is that 220VAC exports through a stabilized voltage supply, and the medium that its communication is used is Shielded Twisted Pair.What the temperature measurement module 2 of total system connected employing is and linked method that the general computing machine that server 4 uses connects a RS232/485 converter 3 at its serial ports, the twisted-pair feeder that splicing two tunnel communications are used on this RS232/485 converter 3.On the twisted-pair feeder that the communication of every road is used each and connect 33 detection modules 2, on source of stable pressure, also draw two road power supplys simultaneously, the connection of total system and power supply are divided into two independently loops like this.In server 4, the operating platform that uses is WINDOWS2000, monitoring software is the CITECT5.40 version, the CIETCT of server 4 BIN pack under the catalogue IAS.DBF, AS.DLL and three files of PROTDIR.DBF, WINT SYSTEM32 pack under the catalogue MFC42D.LL and two files of MSVCRTD.DLL, five above-mentioned files are for the exploitation of this cover system, CIETCT USER pack into the user program of detected temperatures.The software arrangements of client computer 5 is the same with server 4, does not have direct communication between it and the detection module 2, and its data are to read from server 4.Message exchange between server 4 and the client computer 5 exchanges by ICP/IP protocol.Divide 3 seconds, 3 minutes and 1 hour to send acquisition instructions by server 4 according to technological requirement to the temperature at each position, database is handled, shows and deposited in to the data that collect on request.
Use above-mentioned temp measuring system and method, finishing temperature detection system error≤0.4% is raised labour efficiency more than 10 times, and has improved working environment.
Claims (15)
1. system for detecting temperature that is used for the heatingup of coke oven battery process, comprise the some micron order thermopairs that are located in the stove, it is characterized in that, these some micron order thermopairs are divided into some groups, every group connects a temperature measurement module, this temperature measurement module is provided with and uses passage, compensation channels, and the micron order thermopair is carried out cold junction compensation; Converter and the server that is connected with this temperature measurement module successively: resident thermometric period control program in this server.
2. system for detecting temperature as claimed in claim 1 is characterized in that, described micron order thermopair is four to seven for every group.
3. system for detecting temperature as claimed in claim 1 or 2 is characterized in that, described micron order thermopair is a micron order K type thermopair.
4. system for detecting temperature as claimed in claim 1 is characterized in that, by converter, adopts the RS485 agreement to carry out communication between described temperature measurement module and the server.
5. system for detecting temperature as claimed in claim 1 is characterized in that, described temperature measurement module uses the 12V direct supply, adopts parallel way.
6. as claim 1 or 5 described system for detecting temperature, it is characterized in that described temperature measurement module is the IAS temperature measurement module, each IAS temperature measurement module has eight passages, and wherein seven are the use passage, and another one is a compensation channels.
7. system for detecting temperature as claimed in claim 1 is characterized in that, described converter is a RS232/485 type converter.
8. system for detecting temperature as claimed in claim 1 is characterized in that, on the described converter and connect the twisted-pair feeder that two tunnel communications are used, on the twisted-pair feeder of every road each and connect 33 temperature measurement modules.
9. the system for detecting temperature of heatingup of coke oven battery as claimed in claim 1 is characterized in that, described thermometric period control program as requested, every 3 seconds or 3 minutes or the instruction of sending image data in 1 hour.
10. system for detecting temperature as claimed in claim 1 is characterized in that server can connect client computer.
11. system for detecting temperature as claimed in claim 10 is characterized in that, configurable two converters, and client computer and server are arranged to redundancy structure.
12. a temperature checking method that is used for the heatingup of coke oven battery process, its step comprises:
A), in stove, select point for measuring temperature according to the furnace expansion rule;
B) each point for measuring temperature is installed a micron order thermopair;
C) the micron order thermopair is divided into groups nearby, every group connects a temperature measurement module;
D) the micron order thermopair is carried out the cold junction revisal by group;
E) by server every regular time section send acquisition instructions, become pulse signal through the temperature transition of revisal, change into data by converter, deposit in the database.
13. temperature checking method as claimed in claim 12 is characterized in that, point for measuring temperature described in the step a) comprises upper of furnace body measuring point and bottom measuring point.
14. temperature checking method as claimed in claim 13 is characterized in that, described upper of furnace body measuring point is 210.
15. temperature checking method as claimed in claim 13 is characterized in that, described body of heater bottom measuring point is 89.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02136325 CN1208604C (en) | 2002-07-31 | 2002-07-31 | Temperature determining system and method for drying cokery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02136325 CN1208604C (en) | 2002-07-31 | 2002-07-31 | Temperature determining system and method for drying cokery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1472518A CN1472518A (en) | 2004-02-04 |
| CN1208604C true CN1208604C (en) | 2005-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02136325 Expired - Fee Related CN1208604C (en) | 2002-07-31 | 2002-07-31 | Temperature determining system and method for drying cokery |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781574B (en) * | 2009-01-19 | 2013-10-30 | 五冶集团上海有限公司 | Automatic monitoring system for oven drying temperature of coke oven |
| CN102520747B (en) * | 2011-11-23 | 2014-09-10 | 中国三冶集团有限公司 | Coke oven temperature and pressure automatic monitoring oven control system |
| CN102564629A (en) * | 2011-12-31 | 2012-07-11 | 山西沁新能源集团股份有限公司 | Automatic heating test system for clean type heat recovery coke oven |
| CN105700383B (en) * | 2016-02-26 | 2018-05-29 | 中冶焦耐自动化有限公司 | A kind of positive pressed baker optimal control method |
| CN105588653A (en) * | 2016-03-11 | 2016-05-18 | 湖南千盟工业智能系统股份有限公司 | Multichannel high-precision intelligent coke oven temperature measurement method and multichannel high-precision intelligent coke oven temperature measurement device |
| CN106774515B (en) * | 2017-01-13 | 2018-01-12 | 山东师范大学 | A kind of heatingup of coke oven battery intelligent temperature control system and control method |
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2002
- 2002-07-31 CN CN 02136325 patent/CN1208604C/en not_active Expired - Fee Related
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| CN1472518A (en) | 2004-02-04 |
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