CN206975481U - DCS and plasma system control device improvement communication system - Google Patents
DCS and plasma system control device improvement communication system Download PDFInfo
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- CN206975481U CN206975481U CN201720850511.1U CN201720850511U CN206975481U CN 206975481 U CN206975481 U CN 206975481U CN 201720850511 U CN201720850511 U CN 201720850511U CN 206975481 U CN206975481 U CN 206975481U
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- plasma
- dcs
- control device
- system control
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Abstract
The utility model discloses a kind of DCS and plasma system control device improvement communication system, and it includes plasma system control device, the first plasma cooling water pump, the second plasma cooling water pump, plasma cooling jellyfish pipe pressure switch, DCS control systems and communication fastener；Signal is connected the instruction output end mouth of the plasma system control device respectively with the first plasma cooling water pump, the second plasma cooling water pump, plasma cooling jellyfish pipe pressure switch, the signal output port of the plasma system control device is connected with the communication fastener signal, and the communication fastener is connected with the DCS control systems signal.The utility model has that transformation is simple, expense is low, and can effectively shorten the signal transmission time between DCS system and plasma system control device, improves SRT, improves the reliability of equipment.
Description
Technical field
The utility model is related to a kind of communication system, more particularly, to a kind of DCS that can improve communication efficiency with wait from
The improvement communication system of subsystem controls equipment.
Background technology
The plasma system that our factory uses produces for Yantai Long Yuan Utilities Electric Co., Ltd.s, the installation of plasma system control device
With regard to ground terminal, data transmission is carried out with DCS system by FBM224 fasteners using communication cable, waited during our factory ignition of the boiler from
Sub- cooling water pump B tripping operations, the action of DCS interlock logics, start plasma cooling water pump A, after 4 seconds, plasma cooling water pump A is opened
Move successfully, during which the action of plasma cooling jellyfish pipe pressure low switch, lasts about 3 seconds.Set according to logic, plasma cooling
Plasma operation is exited in the low interlocking of hydraulic pressure, and the inspection of B layers fire is all disappeared immediately, and boiler has actually been put out a fire, boiler main fuel trip.Plasma
System command issues to be realized with feedback reception using DCS and PLC communication modes, and DCS sides use for FBM224 fasteners,
More due to counting, traffic is larger, therefore is arranged to the scan period of the module 1 second in design, if set lower
Scan period, the communication rate of load condensate of the fastener can be increased considerably, it is more likely that cause the serious problems such as communication failure, influence
Equipment normal operation, FBM224 communication fastener scan periods are arranged to 1 second, i.e., send instructions under DCS sides and receive the cycle fed back
For 2 seconds, the communication time between scan period and PLC and DCS plus PLC was 2 seconds, needs 4 second time altogether, result in boiler
MFT, it is time-consuming oversize between the transmission of this system signal, cause signal transmission not in time.
Utility model content
The technical problem that the utility model solves is to provide a kind of DCS and plasma system control device improvement communication system
System, shorten signal transmission time between DCS system and plasma system control device, improve SRT.
Technical solution of the present utility model is：
DCS and plasma system control device a kind of improvement communication system, wherein, it includes plasma system control and set
Standby, the first plasma cooling water pump, the second plasma cooling water pump, plasma cooling jellyfish pipe pressure switch, DCS control systems
And communication fastener；The instruction output end mouth of the plasma system control device and the first plasma cooling water pump, second
Plasma cooling water pump, the signal connection respectively of plasma cooling jellyfish pipe pressure switch, the plasma system control device
Signal output port is connected with the communication fastener signal, and the communication fastener is connected with the DCS control systems signal.
DCS as described above and plasma system control device improvement communication system, wherein, the plasma system control
Connected between the signal output port of control equipment and the communication fastener via command signal line and feedback signal line signal, it is described
Communicate and connected between fastener and the DCS control systems via command signal line and feedback signal line signal.
DCS as described above and plasma system control device improvement communication system, wherein, the plasma system control
Control equipment is provided with PLC, and signal short circuit is connected between the signal output port and feedback port of the entry condition of the PLC
Line.
DCS as described above and plasma system control device improvement communication system, wherein, the command signal line and
Feedback signal line is 4*2*1.0 computer paired shield cables.
Learnt by described above, the utility model compared with prior art, can reach the effect of following really：
DCS of the present utility model and plasma system control device improvement communication system, are referred to by cancelling water pump start and stop
Make, feedback signal first passes through the connection method that PLC arrives DCS system again, directly instructs water pump start and stop, feedback signal is the same as DCS systems
System connection, can effectively shorten signal transmission time 2s or so, effectively avoid that the boiler caused by signal transmission not in time occurs
MFT.The utility model has that transformation is simple, expense is low, and can effectively shorten DCS system and plasma system control device
Between signal transmission time, improve SRT, improve the reliability of equipment.
Brief description of the drawings
Fig. 1 is DCS of the present utility model and the schematic diagram of the improvement communication system of plasma system control device.
Main element label declaration：
The utility model：
1：DCS control systems 2：Plasma system control device 3：Communicate fastener
4：First plasma cooling water pump 5：Second plasma cooling water pump
6：Plasma cooling jellyfish pipe pressure switch 7：Command signal line 7'：Feedback signal line
8：PLC
Embodiment
In order to which the technical characteristics of the utility model, purpose and effect are more clearly understood, now control illustrates
Specific embodiment of the present utility model.
A kind of DCS of the present utility model and plasma system control device improvement communication system, its preferred embodiment
In, refer to shown in Fig. 1, it includes plasma system control device 2, the first plasma cooling water pump 4, the cooling of the second plasma
Water pump 5, plasma cooling jellyfish pipe pressure switch 6, DCS control systems 1 and communication fastener 3；The plasma system control is set
Standby 2 instruction output end mouth and the first plasma cooling water pump 4, the second plasma cooling water pump 5, plasma cooling jellyfish
The difference signal connection of pipe pressure switch 6, the signal output port of the plasma system control device 2 and the communication fastener 3
Signal is connected, and the communication fastener 3 is connected with the signal of DCS control systems 1.By by plasma system control device 2
Signal output port via communication fastener 3 and directly be connected with the signal of DCS control systems 1, and without PLC scanning with
Feedback link, the communication time 2 seconds that can be saved between PLC scan periods and PLC and DCS control systems 1 so that when always communicating
Between be reduced to 2 seconds by original 4 seconds, avoid due to the generation of signal transmission caused boiler main fuel trip event not in time.
When the first plasma cooling water pump 4 trips, DCS makes what the second plasma cooling water pump 5 started in reception and output feedback signal
In time interval, plasma cooling jellyfish pipe pressure switch 6 will not ensure that filtering master because of the low action of pressure and out of service
Fuel tripping operation will not occur.
DCS of the present utility model as described above and the improvement communication system of plasma system control device, its is preferable
In embodiment, via command signal between the signal output port of the plasma system control device 2 and the communication fastener 3
Line 7 connects with feedback signal line 7' signals, via command signal line 7 between the communication fastener 3 and the DCS control systems 1
Connected with feedback signal line 7' signals.By laying two communication cables, the signal of plasma system control device 2 is directly connected to
Output port and DCS control systems 1, reduce the scan period needed for PLC communications and feedback time.Wherein described address card part
It is FBM224 fasteners in one of which embodiment.
DCS of the present utility model as described above and the improvement communication system of plasma system control device, its is preferable
In embodiment, the plasma system control device 2 is provided with PLC, the signal output port of the entry condition of the PLC and anti-
Feedback is connected with signal shorting stub between port.Whereby, the instruction in releasing PLC control cabinet, feedback signal line 7', and by logic
It is related to the signal short circuit of entry condition.
DCS of the present utility model as described above and the improvement communication system of plasma system control device, its is preferable
In embodiment, the command signal line 7 and feedback signal line 7' are 4*2*1.0 computer paired shield cables.
DCS of the present utility model and plasma system control device improvement communication system, are referred to by cancelling water pump start and stop
Make, feedback signal first passes through the connection method that PLC arrives DCS system again, directly instructs water pump start and stop, feedback signal is the same as DCS systems
System connection, can effectively shorten signal transmission time 2s or so, send instructions under DCS sides to receiving water pump start and stop feedback signal 2 seconds
Left and right, effectively avoid that the boiler main fuel trip caused by signal transmission not in time occurs.The utility model has that transformation is simple, expense is low,
And it can effectively shorten the signal transmission time between DCS system and plasma system control device 2, when improving system response
Between, improve the reliability of equipment.
The schematical embodiment of the utility model is the foregoing is only, is not limited to model of the present utility model
Enclose.Any those skilled in the art, the made equivalent change on the premise of design of the present utility model and principle is not departed from
Change and change, the scope of the utility model protection all should be belonged to.
Claims (4)
1. a kind of DCS and plasma system control device improvement communication system, it is characterised in that it includes plasma system control
Control equipment, the first plasma cooling water pump, the second plasma cooling water pump, plasma cooling jellyfish pipe pressure switch, DCS controls
System and communication fastener；The instruction output end mouth of the plasma system control device and the first plasma cooling water pump,
Second plasma cooling water pump, the signal connection respectively of plasma cooling jellyfish pipe pressure switch, the plasma system control are set
Standby signal output port is connected with the communication fastener signal, and the communication fastener is connected with the DCS control systems signal.
2. DCS as claimed in claim 1 and plasma system control device improvement communication system, it is characterised in that described
Via command signal line and feedback signal line between the signal output port of plasma system control device and the communication fastener
Signal connects, and is connected between the communication fastener and the DCS control systems via command signal line and feedback signal line signal.
3. DCS as claimed in claim 2 and plasma system control device improvement communication system, it is characterised in that described
Plasma system control device is provided with PLC, is connected between the signal output port and feedback port of the entry condition of the PLC
There is signal shorting stub.
4. DCS as claimed in claim 3 and plasma system control device improvement communication system, it is characterised in that described
Command signal line and feedback signal line are 4 × 2 × 1.0 computer paired shield cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720850511.1U CN206975481U (en) | 2017-07-14 | 2017-07-14 | DCS and plasma system control device improvement communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720850511.1U CN206975481U (en) | 2017-07-14 | 2017-07-14 | DCS and plasma system control device improvement communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206975481U true CN206975481U (en) | 2018-02-06 |
Family
ID=61403285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720850511.1U Expired - Fee Related CN206975481U (en) | 2017-07-14 | 2017-07-14 | DCS and plasma system control device improvement communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206975481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404964A (en) * | 2018-09-30 | 2019-03-01 | 航天神洁（北京）环保科技有限公司 | Propulsion system based on plasma coated graphite rod electrrode |
-
2017
- 2017-07-14 CN CN201720850511.1U patent/CN206975481U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404964A (en) * | 2018-09-30 | 2019-03-01 | 航天神洁（北京）环保科技有限公司 | Propulsion system based on plasma coated graphite rod electrrode |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20180714 |