CN206023809U - A kind of DCS system redundant network devices power configuration - Google Patents
A kind of DCS system redundant network devices power configuration Download PDFInfo
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- CN206023809U CN206023809U CN201621032105.6U CN201621032105U CN206023809U CN 206023809 U CN206023809 U CN 206023809U CN 201621032105 U CN201621032105 U CN 201621032105U CN 206023809 U CN206023809 U CN 206023809U
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Abstract
The utility model discloses a kind of DCS system redundant network devices power configuration, belongs to power-supply device field.The station-service ups power outfan is connected with a single knife switch, the normally opened contact of coil crossover rear series contactor on ups power outfan of catalyst, finally powers to the power input of switch；After station-service security personnel's section power supply is sequentially connected in series the normally-closed contact of another single knife switch and catalyst, finally also power to the power input of switch.It is ensured public security using station-service by the way of section power supply and the common power supply of station-service ups power, it is ensured that DCS system redundant network devices normally run.
Description
Technical field
This utility model is related to power-supply device field, more particularly to a kind of DCS system redundant network devices power configuration.
Background technology
The MAXDNA systems of the Metso Company that thermal power plant unit DCS system is adopted, after on-site signal is through fastener process
Entering in processor carries out computing, and carries out on-site signal control instruction output, and by system MAXNET network and work station
Communicated.MaxNET communication systems are the full duplex 100Mbps call handovers of a redundancy, are divided into A, B net.Institute
There is website (maxSTATION work stations, maxLINK, and the DPU of networking) by the 5 class UTP RJ45 cables of full duplex of redundancy
It is directly connected to 3 groups of Ethernet switches in this DCS system.Wherein the connection of 2SW1A switches 2SW2A, 2SW3A are handed over
Change planes, be simultaneously connected with the A nets at all working station, comprising operator station, engineer station etc.；2SW1B switches connection 2SW2B,
2SW3B switches, are simultaneously connected with the B nets at all working station, comprising operator station, engineer station etc.；2SW2A switches connect
2SW1A switches, are simultaneously connected with the A nets of all DPU of boiler side；2SW2B switches connect 2SW1B switches, are simultaneously connected with pot
The B nets of all DPU in furnace side；2SW3A switches connect 2SW1A switches, are simultaneously connected with the A nets of all DPU in steam turbine side；2SW3B
Switch connects 2SW1B switches, is simultaneously connected with the B nets of all DPU in steam turbine side.
(1) the two-way power supply that unit DCS system is provided delivers to little UPS devices after the switching of B05 cabinet KM1 catalysts, little
UPS devices out-put supply is used for 2SW2A, 2SW2B switch, in little UPS devices or catalyst failure, can cause two friendships
Change planes while dead electricity, causes operations staff monitor and operate boiler side apparatus.
(2) the two-way power supply that unit DCS system is provided delivers to little UPS devices after the switching of operating board KM1 catalysts, little
The output of UPS devices is used for 2SW1A, 2SW1B switch, in little UPS devices or catalyst failure, can cause two switches
Dead electricity, causes full unit network to interrupt simultaneously, and operations staff cannot be controlled to the equipment of whole unit, easily cause unit
Non- stop, false protection or tripping, cause device damage.
Chinese invention patent, publication number：1455546, publication date：On November 12nd, 2003, disclose a kind of network service
The method of supplying power to of equipment, and a kind of supply unit.Will be module integrated on a power supply backplane for one group of primary power source with power, per
Primary power source module has a power input port；Power supply backplane has output port of power source, by redundant circuit and load
Equalizing circuit, realizes the redundancy and load balancing output of this group of primary power source module；External power is passed through power supply backplane input
Mouth is input in primary power source module；For the equipment for not needing redundant power, an output port from power supply backplane is to this
Electrical equipment out-put supply；For the equipment for needing redundant power, by power supply backplane some output port redundancies and load
Weighing apparatus ground is to the equipment out-put supply.On the premise of without cost pressure, cause the power supply redundancy of all devices to become reality,
So that the network equipment annual 365 days, daily 24 hours free of discontinuities provide service be really possibly realized.Can be widely applied to network to set
Available electrical domain.Its weak point is：The power inlet of the patent is integrated on power supply backplane, and power input
The power supply source of mouth is single, once supply line breaks down, whole network dead electricity, it is impossible to enough work on affects normal
Operation.
Utility model content
1. utility model technical problem to be solved
In for the unit DCS system of prior art, when UPS devices or catalyst failure, two switches can be caused same
When dead electricity, the problem for causing full unit network to interrupt, this utility model are matched somebody with somebody there is provided a kind of DCS system redundant network devices power supply
Put.It is ensured public security using station-service by the way of section power supply and the common power supply of station-service ups power, it is ensured that DCS system redundant network devices are just
Often run.
2. technical scheme
For solving the above problems, the technical scheme that this utility model is provided is：
A kind of DCS system redundant network devices power configuration, it include station-service ups power and station-service security personnel's section power supply, its
In, the station-service ups power outfan is connected with a single knife switch, and the coil crossover of catalyst is on ups power outfan
The normally opened contact of series contactor, finally powers to the power input of switch afterwards；Station-service security personnel's section power supply is sequentially connected in series separately
After the normally-closed contact of one single knife switch and catalyst, finally also power to the power input of switch.
Preferably, the networking mode that switch has two networkings, respectively A nets and B nets, A nets is that 2SW1A switches lead to
Transmission data between 2SW2A communication optical fibers transceiver and 2SW2A switches are crossed, 2SW1A switches are received by 2SW3A communication optical fibers
Send out；
The networking mode of B nets is that 2SW1B switches pass through to pass between 2SW2B communication optical fibers transceiver and 2SW2B switches
Delivery data, 2SW1B switches pass through to transmit data between 2SW3B communication optical fibers transceiver and 2SW3B switches.
Preferably for A nets, the station-service ups power outfan is connected with single knife switch 1/2A, the line of catalyst KM1
Circle is connected across the normally opened contact of rear series contactor KM1 on station-service ups power outfan, finally to the power supply of 2SW1A switches
Supplying power for input end；Station-service security personnel section power supply be sequentially connected in series the normally-closed contact of single knife switch 1/2B and catalyst KM1 after, finally also to
The power input of 2SW1A switches is powered, and wherein station-service ups power is the preferential power supply of 2SW1A switches in A nets.
Preferably for B nets, the station-service security personnel section power output end is connected with single knife switch 3/4B, catalyst KM2's
The normally opened contact of coil crossover rear series contactor KM2 on station-service ensures public security section power output end, finally to 2SW1B switches
Power input is powered；After station-service ups power is sequentially connected in series the normally-closed contact of single knife switch 3/4A and catalyst KM2, finally
Power input to 2SW1B switches is powered, and wherein station-service security personnel's section power supply is the preferential power supply of 2SW1B switches in B nets
Power supply.
Preferably, the normally-closed contact of the normally opened contact and catalyst KM1 of described catalyst KM1 is in parallel, by insert row to
The power input of 2SW1A switches is powered.
Preferably, the power input of the power input of 2SW2A communication optical fibers transceiver and 2SW3A communication optical fiber transceivers
End, in parallel with the power input of 2SW1A switches.
Preferably, the normally-closed contact of the normally opened contact and catalyst KM2 of described catalyst KM2 is in parallel, by insert row to
The power input of 2SW1B switches is powered.
Preferably, the power input of the power input of 2SW2B communication optical fibers transceiver and 2SW3B communication optical fiber transceivers
End, in parallel with the power input of 2SW1B switches.
3. beneficial effect
The technical scheme provided using this utility model, compared with prior art, is had the advantages that：
(1) in this practical equipment redundancy configuration, power supply redundancy thoroughly, is to eliminate single power failure in DCS network systems
Or the equipment major hidden danger that individual equipment failure is caused, it is ensured that set steady reliability service；
(2) this utility model is tested after implementing, and is cut off single channel power supply or single network switch, network is not occurred
Disruption, and engineered implement also what full monoblock DCS system whole network was interrupted so far in unit operation again
Event；
(3) preferred power supply that this utility model 2SW2A, 2SW2B switches are used is different, is prevented from station-service UPS occur
When power supply or station-service security personnel's section power failure, all inoperable phenomenon of all switches, it is ensured that operations staff passes through switch
Monitoring and operation boiler side apparatus；
(4) this utility model reduces contact by the way of station-service ups power and station-service security personnel's section power supply are powered simultaneously
The frequency of device switching, extends the service life of catalyst；
(5) each switch of the present utility model is by the way of independently-powered, and is station-service ups power and station-service security personnel
The mode that section power supply is powered simultaneously, prevents failure from causing the phenomenon that all switches break down when occurring.
Description of the drawings
Fig. 1 is operating board switch A net embodiment of the present utility model；
Fig. 2 is operating board switch b net embodiment of the present utility model.
Specific embodiment
For further appreciating that content of the present utility model, this utility model is described in detail in conjunction with drawings and Examples.
Embodiment 1
In conjunction with Fig. 1-2, a kind of DCS system redundant network devices power configuration, it includes that station-service ups power and station-service are protected
Peace section power supply, wherein, the station-service ups power outfan is connected with a single knife switch, and the coil crossover of catalyst is in UPS electricity
After on source output terminal, the normally opened contact of series contactor, finally powers to the power input of switch；Station-service security personnel's section power supply
After being sequentially connected in series the normally-closed contact of another single knife switch and catalyst, finally also power to the power input of switch.
Embodiment 2
A kind of DCS system redundant network devices power configuration of the present embodiment, similar to Example 1, wherein difference
It is, switch has two networkings, respectively A nets and B nets, and the networking mode of A nets is that 2SW1A switches are communicated by 2SW2A
Data are transmitted between fiber optical transceiver and 2SW2A switches, and 2SW1A switches are by 2SW3A communication optical fibers transceiver and 2SW3A
Data are transmitted between switch；
The networking mode of B nets is that 2SW1B switches pass through to pass between 2SW2B communication optical fibers transceiver and 2SW2B switches
Delivery data, 2SW1B switches pass through to transmit data between 2SW3B communication optical fibers transceiver and 2SW3B switches.
Embodiment 3
A kind of DCS system redundant network devices power configuration of the present embodiment, similar to Example 1, wherein difference
It is, for A nets, the station-service ups power outfan are connected with single knife switch 1/2A, the coil crossover of catalyst KM1 is in factory
With the normally opened contact of series contactor KM1 after on ups power outfan, finally the power input to 2SW1A switches is powered；
After station-service security personnel's section power supply is sequentially connected in series the normally-closed contact of single knife switch 1/2B and catalyst KM1, finally also to 2SW1A switches
Power input power, wherein station-service ups power be A net in 2SW1A switches preferential power supply.
Embodiment 4
A kind of DCS system redundant network devices power configuration of the present embodiment, similar to Example 1, wherein difference
It is, for B nets, the station-service security personnel section power output end are connected with single knife switch 3/4B, the coil crossover of catalyst KM2 exists
The normally opened contact of series contactor KM2 after on station-service security personnel's section power output end, finally to the power input of 2SW1B switches
Power supply；After station-service ups power is sequentially connected in series the normally-closed contact of single knife switch 3/4A and catalyst KM2, finally also exchange to 2SW1B
The power input of machine is powered, and wherein station-service security personnel's section power supply is the preferential power supply of 2SW1B switches in B nets.
Embodiment 5
A kind of DCS system redundant network devices power configuration of the present embodiment, similar to Example 1, wherein difference
It is, the normally-closed contact of the normally opened contact and catalyst KM1 of described catalyst KM1 is in parallel, by insert row to 2SW1A switches
Power input power.
Embodiment 6
A kind of DCS system redundant network devices power configuration of the present embodiment, similar to Example 1, wherein difference
It is, the power input of the power input of 2SW2A communication optical fiber transceivers and 2SW3A communication optical fiber transceivers, with 2SW1A
The power input of switch is in parallel.
Embodiment 7
A kind of DCS system redundant network devices power configuration of the present embodiment, similar to Example 1, wherein difference
It is, the normally-closed contact of the normally opened contact and catalyst KM2 of described catalyst KM2 is in parallel, by insert row to 2SW1B switches
Power input power.
Embodiment 8
A kind of DCS system redundant network devices power configuration of the present embodiment, similar to Example 1, wherein difference
It is, the power input of the power input of 2SW2B communication optical fiber transceivers and 2SW3B communication optical fiber transceivers, with 2SW1B
The power input of switch is in parallel.
Embodiment 9
The present embodiment proposes a kind of DCS system redundant network devices power configuration, and now suggestion modification scheme is as follows：
1st, 2B05 cabinets and the little UPS devices under operating board are cancelled.
2nd, two-way power supply and a catalyst KM2 are increased in 2B05 cabinets.
3rd, boiler side switch embodiment：2SW2A switches and its attached fiber optical transceiver are contacted using 2B05 cabinets KM1
Device is powered, and 2SW2B switches and its attached fiber optical transceiver are powered using 2B05 cabinet KM2 catalysts；And 2B05 cabinet KM1 catalysts
Preferential using station-service ups power, station-service security personnel's section standby mode is powered；2B05 cabinet KM2 catalysts are preferential using station-service security personnel's section,
Station-service ups power standby mode is powered.Referring to the drawings 1, accompanying drawing 2.
4th, operating board switch embodiment：2SW1A switches and its attached fiber optical transceiver are contacted using operating board KM1
Device is powered, and 2SW1B switches and its attached fiber optical transceiver are powered using operating board KM2 catalysts, and operating board KM1 catalysts are adopted
Preferential with station-service ups power, station-service security personnel's section standby mode is powered；Operating board KM2 catalysts are preferential using station-service security personnel's section, factory
Powered with ups power standby mode.
Schematically this utility model and embodiments thereof are described above, the description does not have restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by which, in the case where objective is created without departing from this utility model, design without creative
The frame mode similar to the technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (8)
1. a kind of DCS system redundant network devices power configuration, it is characterised in that it includes station-service ups power and station-service security personnel
Section power supply, wherein, the station-service ups power outfan is connected with a single knife switch, and the coil crossover of catalyst is in ups power
After on outfan, the normally opened contact of series contactor, finally powers to the power input of switch；Station-service ensure public security section power supply according to
After the normally-closed contact of secondary another single knife switch of series connection and catalyst, finally also power to the power input of switch.
2. a kind of DCS system redundant network devices power configuration according to claim 1, it is characterised in that switch has
Two networkings, respectively A nets and B nets, A net networking mode be, 2SW1A switches by 2SW2A communication optical fibers transceiver with
Data are transmitted between 2SW2A switches, and 2SW1A switches pass through to pass between 2SW3A communication optical fibers transceiver and 2SW3A switches
Delivery data；
The networking mode of B nets is that 2SW1B switches pass through to transmit number between 2SW2B communication optical fibers transceiver and 2SW2B switches
According to 2SW1B switches pass through to transmit data between 2SW3B communication optical fibers transceiver and 2SW3B switches.
3. a kind of DCS system redundant network devices power configuration according to claim 2, it is characterised in that for A nets,
The station-service ups power outfan is connected with single knife switch 1/2A, and the coil crossover of catalyst KM1 is exported in station-service ups power
The normally opened contact of series contactor KM1 after on end, finally the power input to 2SW1A switches power；Station-service security personnel's section electricity
After source is sequentially connected in series the normally-closed contact of single knife switch 1/2B and catalyst KM1, finally also to the power input of 2SW1A switches
Power supply, wherein station-service ups power are the preferential power supply of 2SW1A switches in A nets.
4. a kind of DCS system redundant network devices power configuration according to claim 2, it is characterised in that for B nets,
The station-service security personnel section power output end is connected with single knife switch 3/4B, and the coil crossover of catalyst KM2 is in station-service security personnel's section electricity
The normally opened contact of series contactor KM2 after on source output terminal, finally the power input to 2SW1B switches power；Station-service UPS
After power supply is sequentially connected in series the normally-closed contact of single knife switch 3/4A and catalyst KM2, finally also to the power input of 2SW1B switches
End power supply, wherein station-service security personnel's section power supply are the preferential power supply of 2SW1B switches in B nets.
5. a kind of DCS system redundant network devices power configuration according to claim 3, it is characterised in that described connects
The normally-closed contact of the normally opened contact of tentaculum KM1 and catalyst KM1 is in parallel, by power input from insert row to 2SW1A switches
Power supply.
6. a kind of DCS system redundant network devices power configuration according to claim 3, it is characterised in that 2SW2A is communicated
The power input of fiber optical transceiver and the power input of 2SW3A communication optical fiber transceivers, defeated with the power supply of 2SW1A switches
Enter end in parallel.
7. a kind of DCS system redundant network devices power configuration according to claim 4, it is characterised in that described connects
The normally-closed contact of the normally opened contact of tentaculum KM2 and catalyst KM2 is in parallel, by power input from insert row to 2SW1B switches
Power supply.
8. a kind of DCS system redundant network devices power configuration according to claim 4, it is characterised in that 2SW2B is communicated
The power input of fiber optical transceiver and the power input of 2SW3B communication optical fiber transceivers, defeated with the power supply of 2SW1B switches
Enter end in parallel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032105.6U CN206023809U (en) | 2016-08-31 | 2016-08-31 | A kind of DCS system redundant network devices power configuration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621032105.6U CN206023809U (en) | 2016-08-31 | 2016-08-31 | A kind of DCS system redundant network devices power configuration |
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| CN206023809U true CN206023809U (en) | 2017-03-15 |
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| CN201621032105.6U Active CN206023809U (en) | 2016-08-31 | 2016-08-31 | A kind of DCS system redundant network devices power configuration |
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