CN219392514U - DCS control system for chemical principle experiments - Google Patents
DCS control system for chemical principle experiments Download PDFInfo
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- CN219392514U CN219392514U CN202320353668.9U CN202320353668U CN219392514U CN 219392514 U CN219392514 U CN 219392514U CN 202320353668 U CN202320353668 U CN 202320353668U CN 219392514 U CN219392514 U CN 219392514U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a DCS control system for chemical principle experiments, which comprises chemical principle experimental equipment, wherein a field detection instrument is connected with the chemical principle experimental equipment; the system comprises a plurality of I/O units, wherein the I/O units comprise a plurality of I/O clamping pieces and a redundant data forwarding card, the I/O clamping pieces are connected with a field detection instrument and chemical principle experimental equipment for signal acquisition and output, and the redundant data forwarding card is connected with the I/O clamping pieces; the system also comprises a redundant main control card, wherein the redundant main control card is connected with a redundant data forwarding card and is connected with an engineer station through a communication network, so that the engineer station can monitor and control the chemical principle experimental equipment. Under the action of the DCS, various devices can be monitored in a centralized way, so that the monitoring efficiency of an administrator is greatly improved; meanwhile, the concept of the DCS control system can be practically integrated into teaching, and the teaching efficiency is greatly improved.
Description
Technical Field
The utility model relates to the technical field of chemical principle experiments, in particular to a DCS control system for chemical principle experiments.
Background
DCS is simply referred to as a distributed control system, which is also referred to as a distributed control system. The DCS control system has real-time monitoring functions, including the running condition of hardware equipment, analog quantity, the overall state of the system and the like. The system can help management personnel to better master the operation conditions of all chemical principle experimental equipment in a centralized manner, monitor the operation conditions, record and timely adjust the misoperation, missed operation and other adverse conditions of field operators.
For chemical principle experiments, each experiment needs to be mastered by students, and an administrator needs to observe the running condition of equipment at any time in the process so as to ensure that the experiment is carried out smoothly. Particularly when various devices are not centralized, it is very difficult for an administrator to monitor multiple sets of devices simultaneously.
Disclosure of Invention
The utility model aims to: in order to overcome the defects of the background technology, the utility model discloses a DCS control system for chemical principle experiments, which realizes the remote monitoring and control of the chemical principle experiment devices by displaying and controlling parameters such as temperature, pressure, flow, liquid level and the like of the chemical principle experiment devices.
The technical scheme is as follows: the DCS control system for chemical principle experiments comprises chemical principle experimental equipment, wherein a field detection instrument is connected with the chemical principle experimental equipment; the system comprises a plurality of I/O units, wherein the I/O units comprise a plurality of I/O clamping pieces and a redundant data forwarding card, the I/O clamping pieces are connected with a field detection instrument and chemical principle experimental equipment for signal acquisition and output, and the redundant data forwarding card is connected with the I/O clamping pieces; the system also comprises a redundant main control card, wherein the redundant main control card is connected with a redundant data forwarding card and is connected with an engineer station through a communication network, so that the engineer station can monitor and control the chemical principle experimental equipment.
Further, the field detection instrument comprises a temperature detection instrument, a pressure detection instrument, a flow detection instrument and a liquid level detection instrument.
Further, the I/O card element includes an XP313 current signal input card, an XP314 voltage signal input card, an XP316 resistance signal input card, an XP363 switching value input card, an XP335 pulse value signal input card, an XP322 current signal output card, and an XP362 switching value output card.
Furthermore, the redundant data forwarding card is XP233, and information exchange is realized between the redundant main control card and the I/O card.
Further, the redundant main control card is XP243X.
Further, the communication network is divided into four layers, and the first layer network is an information management network; the second layer network is a process information network; the third layer network is a process control network, called SCnet II; the fourth network is the control station internal I/O control bus, known as SBUS.
The beneficial effects are that: compared with the prior art, the utility model has the advantages that: under the action of the DCS, various devices can be monitored in a centralized way, so that the monitoring efficiency of an administrator is greatly improved; meanwhile, the concept of the DCS control system can be practically integrated into teaching, and the teaching efficiency is greatly improved.
Drawings
FIG. 1 is a block diagram of a control system according to the present utility model.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.
The DCS control system for chemical principle experiments shown in fig. 1 comprises chemical principle experiment equipment 1, wherein a field detection instrument 2 is connected with the chemical principle experiment equipment 1, the field detection instrument 2 comprises a temperature detection instrument, a pressure detection instrument, a flow detection instrument and a liquid level detection instrument, and industrial four parameters are converted into various signals which can be identified by an I/O clamping piece in the DCS control system through a 220V-to-24V power supply.
Also included are a plurality of I/O units 3, a redundant host control card 4, and an engineer station 5.
The I/O unit 3 includes a plurality of I/O cards 301 and a redundant data forwarding card 302, where the I/O cards 301 include an XP313 current signal input card, an XP314 voltage signal input card, an XP316 resistance signal input card, an XP363 switching value input card, an XP335 pulse value signal input card, an XP322 current signal output card, and an XP362 switching value output card. The I/O card 301 is connected with the field detection instrument 2 and the chemical principle experiment equipment 1 for signal acquisition and output, and the redundant data forwarding card 302 is connected with the I/O card 301. For AI signals, the on-site control cabinet and the DCS operator station can synchronously display the AI signals; for the AO signal, the signal change-over switch is used to select the field control signal and the output signal of DCS control, and the control signal of the field execution mechanism is divided into two paths for connection, and is controlled by the field control instrument or by the DCS operator. The I/O card has a self-diagnosis function, and can perform self-detection during sampling and signal processing. If the card is in a redundant state, once the fault is detected, the working card actively gives the working right to the standby card so as to ensure the correct sampling of the signal.
The redundant data forwarding card 302 is XP233, the redundant main control card 4 is XP243X, data is transmitted to the I/O card of the DCS system, and information exchange is performed between the redundant data forwarding card XP233 and the main control card XP243X. The data forwarding card can expand a plurality of cages through dialing and is connected with more I/O signals. XP233 has WDT watchdog reset function, and when the card received the interference and caused software confusion, can reset CPU voluntarily for the system resumes normal operating. When the card is configured with redundancy, if the working card fails in the running process, the working card can be automatically switched to the standby card without disturbance, and the software switching under the condition of hardware failure and the hardware switching under the condition of software crash can be realized, so that the safe and reliable running of the system is ensured.
The redundant main control card 4 is connected with the redundant data forwarding card 302 and is connected with the engineer station 5 through a communication network, so that the engineer station 5 can monitor and control the chemical principle experimental equipment 1. The main control card XP243X realizes the information exchange with the I/O card through the data forwarding card, periodically collects the on-site real-time process information by the signal input card, and outputs a control signal to the executing mechanism through the control card after the comprehensive operation processing is executed in the main control card, and executes the corresponding action. By means of this control, the engineer station 5 can realize the transmission and control of single or multiple signals in the chemical engineering principle equipment through the connection of the communication network.
The communication network is divided into four layers, and the first layer network is an information management network; the second layer network is a process information network; the third layer network is a process control network, called SCnet II; the fourth network is the control station internal I/O control bus, known as SBUS.
For the field multi-set scattered chemical principle experimental equipment, various AI and AO signals scattered in the equipment are transmitted to a data forwarding card in a concentrated mode through an I/O card in the DCS system, information exchange is carried out with a main control card, and an engineer station (an operator station) is used for carrying out concentrated monitoring control on the scattered signals of the field multi-set equipment through a communication network, so that the monitoring efficiency of an administrator is greatly improved.
Claims (6)
1. The utility model provides a DCS control system for chemical principle experiments, includes chemical principle experimental facilities (1), its characterized in that: comprises a field detection instrument (2) connected with chemical principle experimental equipment (1); the system comprises a plurality of I/O units (3), wherein the I/O units (3) comprise a plurality of I/O clamping pieces (301) and a redundant data forwarding card (302), the I/O clamping pieces (301) are connected with a field detection instrument (2) and chemical principle experimental equipment (1) for signal acquisition and output, and the redundant data forwarding card (302) is connected with the I/O clamping pieces (301); the system further comprises a redundant main control card (4), wherein the redundant main control card (4) is connected with the redundant data forwarding card (302) and is connected with the engineer station (5) through a communication network, so that the engineer station (5) can monitor and control the chemical principle experimental equipment (1).
2. The DCS control system for chemical principle experiments according to claim 1, wherein: the field detection instrument (2) comprises a temperature detection instrument, a pressure detection instrument, a flow detection instrument and a liquid level detection instrument.
3. The DCS control system for chemical principle experiments according to claim 1, wherein: the I/O card (301) comprises an XP313 current signal input card, an XP314 voltage signal input card, an XP316 resistance signal input card, an XP363 switching value input card, an XP335 pulse value signal input card, an XP322 current signal output card and an XP362 switching value output card.
4. The DCS control system for chemical principle experiments according to claim 1, wherein: the redundant data forwarding card (302) is XP233, and information exchange is realized between the redundant main control card (4) and the I/O card (301).
5. The DCS control system for chemical principle experiments according to claim 1, wherein: the redundant main control card (4) is XP243X.
6. The DCS control system for chemical principle experiments according to claim 1, wherein: the communication network is divided into four layers, and the first layer network is an information management network; the second layer network is a process information network; the third layer network is a process control network, called SCnet II; the fourth network is the control station internal I/O control bus, known as SBUS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320353668.9U CN219392514U (en) | 2023-03-01 | 2023-03-01 | DCS control system for chemical principle experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320353668.9U CN219392514U (en) | 2023-03-01 | 2023-03-01 | DCS control system for chemical principle experiments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219392514U true CN219392514U (en) | 2023-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320353668.9U Active CN219392514U (en) | 2023-03-01 | 2023-03-01 | DCS control system for chemical principle experiments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219392514U (en) |
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2023
- 2023-03-01 CN CN202320353668.9U patent/CN219392514U/en active Active
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