CN203311729U - Simulation teaching factory in which aniline is prepared from nitrobenzene through hydrogenation - Google Patents
Simulation teaching factory in which aniline is prepared from nitrobenzene through hydrogenation Download PDFInfo
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- CN203311729U CN203311729U CN2012205257329U CN201220525732U CN203311729U CN 203311729 U CN203311729 U CN 203311729U CN 2012205257329 U CN2012205257329 U CN 2012205257329U CN 201220525732 U CN201220525732 U CN 201220525732U CN 203311729 U CN203311729 U CN 203311729U
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Abstract
The utility model discloses a simulation teaching factory in which aniline is prepared from nitrobenzene through hydrogenation. The simulation teaching factory comprises a small chemical device region, an indoor operation region and a teaching discussion region. The small chemical device region comprises a small chemical device and a device frame. The indoor operation region comprises a control system, and a small chemical device which is connected with the control system through a communication signal. A computer and multimedia teaching facilities are arranged in the teaching discussion region, wherein the computer and the multimedia teaching facilities are connected with the control system of the indoor operation region through signal cables. The device of the utility model is basically consistent with the actual situation of a real fluidized bed device, and the car driving, car parking, normal operations and the processing of abnormal phenomena of the device can be simulated in the overall process through a DCS, the device is more flexible than a real production device, and the operation skills of the device are easy to master, so the device has advantages of good effects, safety and reliability when being used in teaching training.
Description
Technical field
The utility model relates to a kind of simulated teaching factory of chemical field; belong to education, chemical process and equipment technical field; be specifically related to a kind of simulated teaching factory of manufacturing process of aniline through nitrobenzene hydrogenation; for carrying out teaching and the real training of fluidized-bed catalytic reactor post operation technology; be applicable to the real Integrated Teaching of reason and the Special Technique Training of all kinds of universities and colleges chemical and relevant speciality thereof, also be applicable to Chemical Engineering Technology workman on-the-job training and chemical technician and senior technician's training.
Background technology
Aniline is a kind of important Organic Chemicals and fine-chemical intermediate, reaches 300 kinds by the more important product of Aniline Production, and its typical production method and being prepared by By Catalytic Hydrogenation of Nitrobenzene adopts fluidized-bed catalytic reactor.Because raw materials for production and product all have poisonous and hazardous danger, there are safety and environmental issue, process units is difficult to really be transplanted in practice teaching.In teaching, can only show with the form of process chart, the student just sees equipment roughly profile and main material trend, can not see the overall picture of process units and the realization of production, even go enterprise's real training, also can only see, can not operate, the student is difficult to understand from the former realization of expecting the whole production run of product, affected the cultivation of student to understanding, perception and the production operation technical ability of production run, knowledge, technical ability and the quality of chemical process class Among Graduates Who Major is difficult to dock with enterprise's realization " zero distance ", can not meet the requirement of enterprise.
Therefore, in order to realize energy-saving safety, integrate Modern Manufacturing Technology, infotech, comprehensive skills training and skill examination, the experience system that this just needs a kind of collection " to teach-learn-do integrated ", best approach is implanted to typical chemical production device in teaching practice to form a kind of simulated teaching factory exactly, the operation that utilizes the experience system of this emulation can either simulate the computer control system in pulpit, actual hands-on that again can the simulated field device, and do not contact real chemical material.
The utility model content
The utility model purpose is set up for the above-mentioned problem need solved typical, representational, the process level simulated teaching factory than strong adaptability, i.e. the simulated teaching factory of manufacturing process of aniline through nitrobenzene hydrogenation are arranged.This simulated teaching factory is substantially consistent with real fluidized bed plant actual conditions, and can carry out the start-stop car of Whole Process Simulation device, the operation of normal operation and the processing of abnormal occurrence by DCS, more flexible than true process units, be convenient to grasp the operative skill of device, for the teaching, training better effects if, and safety and reliability.
Another purpose of the present utility model is to set up a kind ofly can realize the real training of dividing into groups, and the student of teams and groups shares out the work and help one another, crew-served simulated teaching factory.
In order to achieve the above object, the utility model is realized by following scheme:
A kind of simulated teaching factory of manufacturing process of aniline through nitrobenzene hydrogenation, comprise chemical plant installations construction district, in-house operation district and teaching Discussion district, wherein, chemical plant installations is built in district and is provided with small chemical device, device frame and chemical instruments, device frame is for installing bracing frame, the small chemical device is arranged on device frame, and each instrument in its corresponding small chemical device of chemical instruments is connected; In-house operation is provided with control system in district, and control system and above-mentioned small chemical device are by signal cable UNICOM; And the teaching Discussion district is provided with computing machine and multimedia teaching facility, computing machine is connected by signal cable with the control system in the in-house operation district with the multimedia teaching facility; It is characterized in that described chemical plant installations comprises nitrobenzene pre-processing device, fluid bed reaction apparatus, condensation and separation equipment, and nitrobenzene pre-processing device, fluidized bed reactor equipment and condensation and separation equipment are linked in sequence successively.
Described nitrobenzene pre-processing device comprises nitrobenzene primary heater, nitrobenzene carburetor; Described fluid bed reaction apparatus comprises fluidized-bed reactor and catalyzer basin; Described condensation and separation equipment comprise aniline condenser, crude benzol amine basin, crude benzol amine refrigeratory, aniline separator.
Described nitrobenzene primary heater, nitrobenzene carburetor, fluidized-bed reactor, aniline condenser, crude benzol amine basin, crude benzol amine refrigeratory, aniline separator and catalyzer basin are linked in sequence successively.
Described chemical instruments comprise any one or several of flowmeter, liquid level gauge, tensimeter, thermometer or variable valve.
Described control system comprises the next instrument, middle PLC and host computer, wherein the next instrument and host computer and middle PLC UNICOM, and middle PLC links with the chemical instruments of small chemical device.
Between the software technological parameter of described control system and on-the-spot actual valve, realize transmission, interactive and feedback by the OPC automatic technology.
Described control system transfers signals to actual training device by the computing machine configuration software, and shows by Displaying Meter, can operate at the inside and outside behaviour's auto levelizer scene in not advancing the actual production of material situation Imitating; Or the processing of simulating common super high pressure accident phenomenon.
Described teaching Discussion district is provided with instructor station, engineer station and a plurality of operator station, each operator station includes corresponding imitative DCS active station and operator station, and described a plurality of operator station can be divided into some groups, by group, carry out training operation for unit, each group operator station can be subdivided into main behaviour, secondary behaviour by responsibility, between secondary station and main website, carry out communication, not communication between secondary station.
The beneficial effects of the utility model are: the actual conditions of structural design of the present utility model and shop equipment are consistent substantially, utilizing during simulated teaching of the present utility model factory carries out the process of teaching, training, adopt the training pattern of soft or hard combination can allow the student conscientiously recognize the overview of true chemical production device, improved the understanding of student to true chemical process and fluidized bed reactor equipment, can strengthen student's practical operation level, cultivate student's collaboration capabilities and sense of community.
The control system that the utility model arranges, under LAN environment, arranges a teacher station, many student stations, and the student station is divided into to many groups, and each group is subdivided into main behaviour, secondary behaviour by responsibility, carries out communication between secondary station and main website, not communication between secondary station.Under this kind pattern, by organizing the mutual communication between interior student station, the same technological process of several trainee's co-operate, be equal to the teams and groups' co-operating in actual production, makes the student really experience the practical operation situation of teams and groups.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the LAN (Local Area Network) training schematic diagram at common PC simulation of the present utility model teacher station, engineer station and student station.
Fig. 3 is device schematic flow sheet of the present utility model.
In figure, 101 are chemical plant installations construction district, 102 in-house operation districts, 103 teaching Discussion districts, nitrobenzene primary heater 1, nitrobenzene carburetor 2-1/2, fluidized-bed reactor 3, aniline condenser 4, aniline basin 5, crude benzol amine refrigeratory 6, aniline separator 7, catalyzer basin 8.
Embodiment
Below in conjunction with embodiment more specifically, the utility model is done to further expansion explanation, but it is pointed out that the simulated teaching factory of manufacturing process of aniline through nitrobenzene hydrogenation of the present utility model is not limited to this specific institutional framework or technological process.Obviously be understandable that for those skilled in the art, even the following description content does not make any adjustments or revises, also can be directly applied in these unspecified other allied organization's structure or technological processes.
As shown in Figure 1, the simulated teaching factory of manufacturing process of aniline through nitrobenzene hydrogenation of the present utility model, comprise chemical plant installations construction district 101, in-house operation district 102 and teaching Discussion district 103, wherein, chemical plant installations is built in district and is provided with the small chemical device, device frame and control instrument (not shown), device frame is mounting bracket, the small chemical appliance arrangement is arranged on device frame, control instrument is connected with each equipment of small chemical device, in in-house operation district 102, be provided with control system, control system and above-mentioned small chemical device are by signal cable UNICOM, and zone of discussion 103 is provided with many computing machines and multimedia teaching facility, the quantity of computing machine is looked the scale setting of teaching, that is to say that each computing machine is namely an active station.Computing machine is connected by signal cable with the control system in in-house operation district 102 with the multimedia teaching teaching facilities, and control system is to computing machine and multimedia teaching facility signal transmission.
As shown in Figure 3, the small chemical devices that chemical plant installations is built in district 101 comprise: nitrobenzene pre-processing device, fluid bed reaction apparatus, condensation and separation equipment, and nitrobenzene pre-processing device, fluidized bed reactor equipment and condensation and separation equipment are linked in sequence successively.The nitrobenzene pre-processing device comprises nitrobenzene primary heater 1, nitrobenzene carburetor 2, fluid bed reaction apparatus comprises fluidized-bed reactor 3 and catalyzer basin 8, and condensation and separation equipment comprise aniline condenser 4, crude benzol amine basin 5, crude benzol amine refrigeratory 6, aniline separator 7.In actual training device, recycle unit is not illustrated, in the real training process, do not advance true material.
Nitrobenzene after preheating mixes and vaporizes in two-stage nitrobenzene carburetor 2-1/2 with the hydrogen after heat exchange, then enter the bottom of fluidized-bed reactor 3, under catalyst action in fluidized-bed reactor 3, nitrobenzene and hydrogen reaction generate water and aniline, reaction product flows out in reactor head, after aniline condenser 4, the 6 heat exchange condensations of crude benzol amine refrigeratory, enter aniline separator 7, the crude benzol amine obtained enters aniline basin 5, and hydrogen recycles.Catalyzer basin 8 is connected with fluidized-bed reactor 3, can feed intake according to default catalyzer charging time and metering proportion, and the catalyzer that catalytic hydrogenation is needed joins in the bed of fluidized bed, and the catalytic hydrogenation that participates in gas-solid phase in fluidized bed prepares aniline.
Easily be understood that, in concrete implementation process, according to process chart, will between each chemical plant installations, connect into technological process with process pipe, between process pipe and small chemical device, adopt flange to be connected, pipe fitting such as the employings such as elbow, threeway in pipeline are welded to connect, valve in pipeline adopts respectively welding or is threaded according to selected valve kind, and the chemical instruments in pipeline adopt respectively welding or are threaded according to selected different types of instrument.Connected mode is not limited to above-mentioned mode, can certainly adopt other connected mode.In pipeline, be connected with as required corresponding chemical instruments, described chemical instruments include but not limited to any one or several of flowmeter, liquid level gauge, tensimeter, thermometer or variable valve.
Control system described in the utility model is connected with field instrument by signal cable, control system comprises the next instrument, middle PLC and host computer, wherein the next instrument and host computer are communicated with middle PLC respectively, and middle PLC is communicated with the chemical instruments in chemical plant installations is built district 101.The signal that field production device produces passes to upper computer software by middle PLC, process ethernet, the signal that upper computer software is sent is implemented to control to on-the-spot chemical instruments by middle PLC through ethernet, and shows on the next instrument of control system.After having constructed, carry out system and connect tune, in addition, as shown in Figure 2, computing machine and multimedia teaching facility that the teaching Discussion district arranges comprise instructor station, engineer station and 99 operator stations, and each operator station includes corresponding imitative DCS active station and operator station.It is evident that, the quantity of operator station is not limited to 99, can be greater than or less than 99, and for example 45 or still less, for example 120 or more again.Instructor station and/or engineer station's quantity also can need to increase corresponding number according to actual conditions, is for example the quantity that assiatant or assistant engineer increase instructor station and/or engineer station.Between instructor station and operator station, between engineer station and operator station, by control system, communicate with one another between operator station and imitative DCS active station and operator station, and corresponding operating process and state are presented on the terminal of computing machine or multimedia teaching facility.When carrying out the DCS operation, the same with real process units, the operations such as start-stop car by the common finishing device of active station in several teaching Discussion districts 103, engineer station in teaching Discussion district 103 (being equivalent to the teacher station) can examine operations such as its start-stop cars simultaneously, each active station also can independently operate by release unit, and the engineer station can examine separately each active station.Aforesaid operations is all strictly realized by software.
The control system that can also arrange at the utility model is under LAN environment, a teacher station, many student stations are set, and the student station is divided into to many groups, each group is subdivided into main behaviour, secondary behaviour by responsibility, the operator station that is made as main behaviour is main website, this is organized remaining operator station and is secondary station, carries out communication between secondary station and main website, not communication between secondary station.Under this kind pattern, by organizing the mutual communication between interior student station, the same technological process of several trainee's co-operate, be equal to the teams and groups' co-operating in actual production, makes the student really experience the practical operation situation of teams and groups.In the situation that the student is more, this training pattern both can reach the purpose of real training, can cultivate again the spirit of teams and groups' cooperation.
The utility model control system adopts emulation DCS operation, and the service data of actual production device and production status are realized to the DCS operation by the computer simulation configuration.Can carry out teaching and the Special Technique Training of correlated curriculum for each specialty of chemical, chemical plant installations can be realized the operation the same with true Chemical Manufacture with control system, but, because device is not thrown raw material, can repeatedly carry out operation training, and operating cost is lower.Multimedia teaching facilities in teaching Discussion district 103 can meet the theory teaching function again, therefore can as learning to doings in the utility model, and realize learning by doing, do the real real Integrated Teaching of realization reason in learning.
The utility model is in carrying out the production operation process, can also set in advance some faults, its objective is cultivate that student's (student or Enterprise Staff) pinpoints the problems, the ability of problem analysis and processing problem, and carry out technological transformation technical measures ability, be particularly suitable for technician and senior technician's training.
Utilize the utility model can realize the Cognition Practice of the Cognition Practice of the drafting of chemical plant installations process chart, all kinds of chemical plants, all kinds of chemical instruments, DCS operation training, according to giving device start-stop car step grouping carry out the training of chemical plant installations start-stop car and cultivate simultaneously the student collaboration capabilities and sense of community, can also allow the student find out the device weak point according to device start-stop car situation, and improvement measures etc.
The utility model can the implement device fault setting and the operation such as processing, simultaneously can realize Division of labour at post, inside and outside behaviour's operation, and more flexible than true process units, but package unit training operation, also independent training operation is carried out in desirable arbitrary post, can a computer operation, and also can many computing machine joint operations.
Although above embodiment of the present utility model has been given to describe in detail and explanation; but what should indicate is; we can carry out various equivalences to above-mentioned embodiment according to conception of the present utility model and change and revise; when its function produced does not exceed spiritual that instructions and accompanying drawing contain yet, all should be within protection domain of the present utility model.
Claims (6)
1. the simulated teaching factory of a manufacturing process of aniline through nitrobenzene hydrogenation, comprise chemical plant installations construction district, in-house operation district and teaching Discussion district, wherein, chemical plant installations is built in district and is provided with small chemical device, device frame and chemical instruments, device frame is for installing bracing frame, the small chemical device is arranged on device frame, and each instrument in its corresponding small chemical device of chemical instruments is connected; In-house operation is provided with control system in district, and control system and above-mentioned small chemical device are by signal cable UNICOM; And the teaching Discussion district is provided with computing machine and multimedia teaching facility, computing machine is connected by signal cable with the control system in the in-house operation district with the multimedia teaching facility; It is characterized in that described chemical plant installations comprises nitrobenzene pre-processing device, fluid bed reaction apparatus, condensation and separation equipment, and nitrobenzene pre-processing device, fluidized bed reactor equipment and condensation and separation equipment are linked in sequence successively.
2. the simulated teaching factory of manufacturing process of aniline through nitrobenzene hydrogenation according to claim 1, is characterized in that described nitrobenzene pre-processing device comprises nitrobenzene primary heater, nitrobenzene carburetor; Described fluid bed reaction apparatus comprises fluidized-bed reactor and catalyzer basin; Described condensation and separation equipment comprise aniline condenser, crude benzol amine basin, crude benzol amine refrigeratory, aniline separator.
3. the simulated teaching factory of manufacturing process of aniline through nitrobenzene hydrogenation according to claim 2, is characterized in that described nitrobenzene primary heater, nitrobenzene carburetor, fluidized-bed reactor, aniline condenser, crude benzol amine basin, crude benzol amine refrigeratory, aniline separator and catalyzer basin are linked in sequence successively.
4. the simulated teaching factory of manufacturing process of aniline through nitrobenzene hydrogenation according to claim 1, is characterized in that described chemical instruments comprise any one or several of flowmeter, liquid level gauge, tensimeter, thermometer or variable valve.
5. according to the simulated teaching factory of the described manufacturing process of aniline through nitrobenzene hydrogenation of claim 1, it is characterized in that described control system comprises the next instrument, middle PLC and host computer, wherein the next instrument and host computer and middle PLC UNICOM, and middle PLC links with the chemical instruments of small chemical device.
6. according to the simulated teaching factory of the described manufacturing process of aniline through nitrobenzene hydrogenation of claim 1-5 any one, it is characterized in that described teaching Discussion district is provided with instructor station, engineer station and a plurality of operator station, each operator station includes corresponding imitative DCS active station and operator station.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012205257329U CN203311729U (en) | 2012-10-15 | 2012-10-15 | Simulation teaching factory in which aniline is prepared from nitrobenzene through hydrogenation |
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| CN2012205257329U CN203311729U (en) | 2012-10-15 | 2012-10-15 | Simulation teaching factory in which aniline is prepared from nitrobenzene through hydrogenation |
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| CN203311729U true CN203311729U (en) | 2013-11-27 |
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| CN2012205257329U Expired - Fee Related CN203311729U (en) | 2012-10-15 | 2012-10-15 | Simulation teaching factory in which aniline is prepared from nitrobenzene through hydrogenation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881215A (en) * | 2012-10-15 | 2013-01-16 | 南京化工职业技术学院 | Simulation teaching factory for producing aniline by hydrogenating nitrobenzene |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881215A (en) * | 2012-10-15 | 2013-01-16 | 南京化工职业技术学院 | Simulation teaching factory for producing aniline by hydrogenating nitrobenzene |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20141015 |
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| EXPY | Termination of patent right or utility model |