CN206947797U - A kind of Novel maintenance power box for power plant - Google Patents
A kind of Novel maintenance power box for power plant Download PDFInfo
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- CN206947797U CN206947797U CN201720954416.6U CN201720954416U CN206947797U CN 206947797 U CN206947797 U CN 206947797U CN 201720954416 U CN201720954416 U CN 201720954416U CN 206947797 U CN206947797 U CN 206947797U
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- loop
- socket
- dcs
- cabinet door
- power plant
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Abstract
It the utility model is related to a kind of Novel maintenance power box for power plant, a kind of Novel maintenance power box for power plant, including power supply box body, body interior is provided with breaker, receptacle loop, fuse, on the spot change-over switch, control loop and DCS control loops, described breaker end of incoming cables is connected with service cable, breaker outgoing line is connected between busbar and change-over switch respectively, busbar is electrically connected with receptacle loop, and change-over switch is in mating connection with control loop on the spot and DCS control loops respectively；The bright padlock of bayonet type is installed additional, while ensureing that IP grades meet to require, it is possible to reduce the electric shock accidents caused by private opening power supply box；Remote control and monitoring can be carried out to socket by DCS system, operations staff is very clear to the situation at scene in control room can；When maintenance power box DCS control systems break down, avoid operations staff and directly air switch is operated, reduce the probability that operations staff's person gets an electric shock.
Description
Technical field
It the utility model is related to a kind of electric power overhaul equipment, and in particular to a kind of Novel maintenance power supply for power plant
Case.
Background technology
Because power plant needs to carry out all kinds of repair and maintenance operations in daily operation, therefore, temporary source point is overhauled
Draw connect with management turn into maintenance daily management an important process.By taking 2 × 1050MW thermal power plant as an example, greatly
150 maintenance power boxes of installing are about needed to meet use demand.For modern electricity power enterprise, professional technique, the fortune of outfit
Administrative staff is relatively fewer, can not effectively take the temporary electricity in full plant area domain into account, once and temporary electricity mismanagement, meeting are direct
Threaten the personal safety of electricity consumption personnel and the normal operation of enterprise.
The agent structure of traditional maintenance power box is mainly made up of top cabinet door and lower pocket panel.The lock of upper cabinet door is
Trip service case built-in lock.After maintainer submits electricity consumption request slip and is signed and issued and permitted, operation department arranges operation people
Member's special trip is gone at the maintenance power box of application electricity consumption.After the outer cabinet door for opening maintenance power box, there is interior cabinet door the inside, runs people
Member can operate across interior cabinet door to each air switch, be come with this to any one in #1 ~ #5 sockets（Apply
That）Carry out power transmission or power-off.After maintenance terminates, maintainer terminates to electricity consumption request slip, and operation department needs to pacify
Raftinging administrative staff's special trip goes to the air that respective socket is checked temporary electricity situation and disconnected at the maintenance power box to open
Close.At the daily maintenance temporary electricity about more than ten of full factory, temporary electricity operation consumes substantial amounts of manpower, time, and artificially
Frequently there is also the hidden danger of electric shock for division air switch.
In addition, because the Over-The-Counter door lock of maintenance power box uses conventional built-in lock, it is easy to pry open, overhaul
Personnel are for cabinet door on frequent private opening maintenance power box of saving trouble and operate the air switch of respective socket, cause full factory interim
The management of power use is chaotic, easily produces personal electric shock risk.
Therefore, it is advanced to produce a kind of control method, reduces staff's electric shock rate, it is reasonable in design, workload is reduced,
A kind of Novel maintenance power box for power plant for improving the efficiency of management has wide market prospects.
The content of the invention
In view of the shortcomings of the prior art, it is advanced to provide a kind of control method for the utility model, reduces staff and gets an electric shock
Rate, it is reasonable in design, workload is reduced, improves a kind of Novel maintenance power box for power plant of the efficiency of management.
What the technical solution of the utility model was realized in：A kind of Novel maintenance power box for power plant, including
Power supply box body, body interior is provided with breaker, receptacle loop, fuse, on the spot change-over switch, control loop and DCS
Control loop, described breaker end of incoming cables are connected with service cable, and breaker outgoing line is respectively between busbar and change-over switch
It is connected, busbar is electrically connected with receptacle loop, and change-over switch is engaged company with control loop on the spot and DCS control loops respectively
Connect.
Described body front upper is provided with interior cabinet door, and interior cabinet door top is provided with opening, and interior cabinet door bottom is provided with
Key panel, button is provided with key panel；Outer cabinet door is provided with outside interior cabinet door, power supply instruction is provided with outer cabinet door
Lamp, outer cabinet door side are provided with bright lock and built-in lock；The bottom of the outer cabinet door in body front is provided with socket panel, socket panel top
Socket indicator lamp is provided with, socket panel bottom is provided with socket.
Described receptacle loop includes earth leakage protective device, and the end of incoming cables of earth leakage protective device is connected with busbar, earth leakage protective
First normally opened contact and socket of device and contactor are in series.
Described control loop on the spot includes normally closed switch, and the coil of normally closed switch, normal open switch and contactor is in series,
Second normally opened contact that contactor is parallel with normal open switch has formed guarantor's power failure road.
Described DCS control loops include the normally closed output contacts of DCS, the normally closed output contacts of DCS, the normally opened output contacts of DCS
It is in series with the coil of contactor, the normally opened contact that contactor is parallel with the normally opened output contacts of DCS has formed guarantor's power failure road,
Second normally opened contact of contactor is mutually electrically connected with DCS inputs with first normally-closed contact and forms loop.
Fuse, the end of incoming cables of fuse and any one phase line electricity are provided between described breaker and change-over switch
Property connection, be parallel with power supply indicator in change-over switch, on the spot control loop and DCS control loops.
Described receptacle loop, on the spot control loop it is equal with the quantity of DCS control loops and it is corresponding be engaged setting, insert
Socket industrial socket or five hole civil sockets in seat loop.
Described receptacle loop, control loop is equal with the quantity of DCS control loops on the spot and is 5, wherein socket
It is made up of in loop 3 industrial socket loops and 2 five hole civil socket loops, at least one five hole civil socket loop
There is one to be provided with single-phase transformer.
The end of incoming cables of second normally opened contact of described contactor and the leading-out terminal of fuse are electrically connected with, contactor
The leading-out terminal of second normally opened contact is electrically connected with one end of socket indicator lamp, and the other end of socket indicator lamp is connected with zero line
Form loop.
The utility model has the positive effect that：First, bayonet type is installed additional on the basis of trip service case lock is retained
Bright padlock, it is close that trip service case lock can close cabinet door on maintenance power box, ensures that IP grades meet to require, bright padlock can
To prevent that cabinet door is by private opening on maintenance power box, it is possible to reduce the electric shock accidents caused by private opening power supply box；Secondly,
The receptacle loop of each maintenance power box installs a contactor additional, can carry out remote control and prison to socket by DCS system
Control, operations staff is very clear to the situation at scene in control room can, reduces the workload of operations staff；Finally, when
When maintenance power box DCS control systems break down, operations staff can arrive opens outer cabinet door with key on the spot, and change-over switch is revolved
" on the spot " state is gone to, by pressing the opening of respective socket loop, stopping adhesive or disconnection of the button come control contactor, so as to control
Whether socket is powered, and directly air switch is operated this avoid operations staff, reduces operations staff's person and gets an electric shock
Probability.
Brief description of the drawings
Fig. 1 is one of power supply box structural representation of the present utility model.
Fig. 2 is the two of power supply box structural representation of the present utility model.
Fig. 3 is electrical schematic diagram of the present utility model.
Fig. 4 is receptacle loop electrical schematic diagram of the present utility model.
Fig. 5 and Fig. 6 is control loop on the spot of the present utility model and DCS control loop output contact electrical schematic diagrams.
Fig. 7 is that DCS control loops of the present utility model input contact electrical schematic diagram.
Embodiment
Below in conjunction with the accompanying drawings with embodiment, specific embodiment of the present utility model is further described.Following reality
Apply example to be used to clearly illustrate the technical solution of the utility model, and protection model of the present utility model can not be limited with this
Enclose.
The Novel maintenance power box for power plant according to Fig. 1,2,3,4,5,6,7 includes power supply box body 1,
Body 1 is internally provided with circuit breaker Q F, receptacle loop, fuse FU, on the spot change-over switch SA, control loop and DCS are controlled back
Road, described circuit breaker Q F ends of incoming cables are connected with service cable, and circuit breaker Q F outlets are respectively between busbar and change-over switch SA
It is connected, busbar is electrically connected with receptacle loop, and change-over switch SA is engaged with control loop on the spot and DCS control loops respectively
Connection.
The described front upper of body 1 is provided with interior cabinet door 10, and the interior top of cabinet door 10 is provided with opening, and interior cabinet door bottom is set
Key panel 8 is equipped with, button 9 is provided with key panel 8；Outer cabinet door 11 is provided with outside interior cabinet door 10, is set in outer cabinet door 11
Power supply indicator 2 is equipped with, the outer side of cabinet door 11 is provided with bright lock 4 and built-in lock 3；The bottom of the outer cabinet door 11 in the front of body 1 is provided with
Socket panel 5, the top of socket panel 5 are provided with socket indicator lamp 6, and the bottom of socket panel 5 is provided with socket 7.Described socket
Loop includes earth leakage protective device QF1, and earth leakage protective device QF1 end of incoming cables is connected with busbar, earth leakage protective device QF1 and contactor
KM1 first normally opened contact and socket XS1 is in series.Described control loop on the spot includes normally closed switch SB1, normally closed to open
Pass SB1, normal open switch SB2 and contactor KM1 coil are in series, and the second of contactor KM1 is parallel with normal open switch SB2
Individual normally opened contact, which has formed, protects power failure road.Described DCS control loops include the normally closed output contacts of DCS, and the normally closed outputs of DCS are touched
The coil of the normally opened output contact of point, DCS and contactor is in series, and the normal of contactor KM1 is parallel with the normally opened output contacts of DCS
Open contact and formed and protect power failure road, contactor KM1 second normally opened contact and first normally-closed contact with DCS input phases
It is electrically connected with and forms loop.Fuse FU, fuse FU inlet wire are provided between described circuit breaker Q F and change-over switch SA
End is electrically connected with any one phase line, and being parallel with power supply in change-over switch SA, on the spot control loop and DCS control loops refers to
Show lamp HR.Described receptacle loop, on the spot control loop it is equal with the quantity of DCS control loops and it is corresponding be engaged setting, insert
Socket industrial socket or five hole civil sockets in seat loop.Described receptacle loop, on the spot control loop and DCS control loops
Quantity it is equal and be 5, be made up of wherein in receptacle loop 3 industrial socket loops and 2 five hole civil socket loops,
There is one to be provided with single-phase transformer at least one five hole civil socket loop.Second of described contactor KM1 is often
Open the end of incoming cables of contact and fuse FU leading-out terminal be electrically connected with, the leading-out terminal of contactor KM1 second normally opened contact with
Socket indicator lamp HR1 one end is electrically connected with, and socket indicator lamp the HR1 other end and zero line connect and compose loop.
In the specific implementation, the bright lock for generating field Novel maintenance power box adds the design of built-in lock, is ensureing IP grades
While satisfaction requires, bright lock can prevent maintenance power box door by private opening, and the bright lock of the maintenance power box of full factory
Opened using same key, key can be greatly reduced because maintainer pries open privately by being taken care of as value operations staff
The situation that door lock operation gets an electric shock.
Control loop on the spot can be changed by change-over switch and access circuit with DCS control loops, accessed under normal circumstances
DCS control loops, after operations staff is connected to the application of temporary electricity and license, i.e. achievable pair on the computer in central station of floating dock
The DCS controls of corresponding receptacle loop, that is, close the normally opened contact of the DCS control loops, and corresponding contactor adhesive self-locking is right
The normally opened contact of contactor first closure for the socket connection answered, receptacle loop conducting, socket are powered, the normally opened contact of contactor second
Adhesive, normally-closed contact disconnect, socket indicator lamp electrified light emitting, DCS control systems feedback socket charged signal；Temporary electricity terminates
When, the receptacle loop is powered off by DCS controls.Disconnect the normally-closed contact of DCS control loops, corresponding contactor coil
Dead electricity, self-locking disconnect, and the normally opened contact of contactor first of corresponding socket connection disconnects, and receptacle loop disconnects, and socket power-off, connects
The normally opened contact of tentaculum second is disconnected, normally-closed contact adhesive, and the power-off of socket indicator lamp is extinguished, DCS control systems feedback socket dead electricity
Signal, so as to which operations staff can be monitored to the break-make situation of power supply box socket in real time.
When the remote power feeding system of maintenance power box breaks down, operations staff opens outer cabinet door by two keys, just may be used
So that change-over switch is switched to regard to ground mode, control loop will access on the spot in circuit, by pressing normal open switch, contactor
Electric self-locking, corresponding contactor coil energization adhesive self-locking are obtained, the normally opened contact of contactor first of corresponding socket connection closes,
Receptacle loop turns on, and socket is powered, the second normally opened contact closure, socket indicator lamp electrified light emitting；Using finishing, normally opened open is pressed
Close, contactor coil dead electricity, the normally opened contact of contactor first of corresponding socket connection disconnects, and receptacle loop disconnects, and socket loses
Electricity, the second normally opened contact are disconnected, and socket indicator lamp dead electricity is extinguished, and touching for operations staff is reduced while ensure that operational efficiency
Electric probability.
The technical solution of the utility model can need to provide the power supply of different size when implementing according to the difference at scene, with
Meet the needs of live distinct device.Preferred embodiment provided by the utility model, include three three-phase 380V industrial socket,
Rated current is respectively 63A, 32A, 16A, and a single-phase 220V, rated current is 10A five hole civil sockets, and one single-phase
Five hole civil sockets of 24V safe voltages, 24V safe voltages to single-phase 220V voltages by passing through single-phase transformer 220V/24V
Transformation obtains.
Claims (9)
1. a kind of Novel maintenance power box for power plant, including power supply box body（1）, it is characterised in that：In body（1）It is interior
Portion is provided with breaker（QF）, receptacle loop, fuse（FU）, change-over switch (SA), control loop and DCS are controlled back on the spot
Road, described breaker（QF）End of incoming cables is connected with service cable, breaker（QF）Outlet respectively with busbar and change-over switch
(SA) it is connected between, busbar is electrically connected with receptacle loop, change-over switch（SA）Controlled respectively with control loop on the spot and DCS
Loop is in mating connection.
2. the Novel maintenance power box according to claim 1 for power plant, it is characterised in that：Described body（1）
Front upper is provided with interior cabinet door（10）, interior cabinet door（10）Top is provided with opening, and interior cabinet door bottom is provided with key panel
（8）, key panel（8）On be provided with button（9）；Interior cabinet door（10）Outside is provided with outer cabinet door（11）, outer cabinet door（11）On set
It is equipped with power supply indicator（2）, outer cabinet door（11）Side is provided with bright lock（4）And built-in lock（3）；Body（1）The outer cabinet door in front（11）
Bottom be provided with socket panel（5）, socket panel（5）Top is provided with socket indicator lamp（6）, socket panel（5）Bottom is set
It is equipped with socket（7）.
3. the Novel maintenance power box according to claim 1 for power plant, it is characterised in that：Described receptacle loop
Including earth leakage protective device（QF1）, earth leakage protective device（QF1）End of incoming cables be connected with busbar, earth leakage protective device（QF1）With contacting
Device（KM1）First normally opened contact and socket（XS1）It is in series.
4. the Novel maintenance power box according to claim 1 for power plant, it is characterised in that：Described control on the spot
Loop includes normally closed switch（SB1）, normally closed switch（SB1）, normal open switch（SB2）With contactor（KM1）Coil be in series,
Normal open switch（SB2）On be parallel with contactor（KM1）Second normally opened contact formed and protect power failure road.
5. the Novel maintenance power box according to claim 1 for power plant, it is characterised in that：Described DCS controls
Loop includes the normally closed output contacts of DCS, and the coil of the normally closed output contacts of DCS, the normally opened output contacts of DCS and contactor is in series,
Contactor is parallel with the normally opened output contacts of DCS（KM1）Normally opened contact formed and protect power failure road, contactor（KM1）
Two normally opened contacts are mutually electrically connected with DCS inputs with first normally-closed contact and form loop.
6. the Novel maintenance power box according to claim 1 for power plant, it is characterised in that：Described breaker
（QF）With change-over switch（SA）Between be provided with fuse（FU）, fuse（FU）End of incoming cables electrically connect with any one phase line
Connect, in change-over switch（SA）, be on the spot parallel with power supply indicator in control loop and DCS control loops（HR）.
7. the Novel maintenance power box according to claim 1 for power plant, it is characterised in that：Described socket returns
Road, on the spot control loop it is equal with the quantity of DCS control loops and it is corresponding be engaged setting, the socket industry in receptacle loop is inserted
Seat or five hole civil sockets.
8. the Novel maintenance power box according to claim 3 for power plant, it is characterised in that：Described socket returns
Road, on the spot control loop are equal with the quantity of DCS control loops and are 5, are returned wherein in receptacle loop by 3 industrial sockets
Road and 2 five hole civil socket loops form, and have one to be provided with single-phase transformation at least one five hole civil socket loop
Device.
9. the Novel maintenance power box for power plant according to claim 4 or 5, it is characterised in that：Described contact
Device（KM1）Second normally opened contact end of incoming cables and fuse（FU）Leading-out terminal be electrically connected with, contactor（KM1）Second
The leading-out terminal of individual normally opened contact and socket indicator lamp（HR1）One end be electrically connected with, socket indicator lamp（HR1）The other end and zero
Line connects and composes loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720954416.6U CN206947797U (en) | 2017-08-02 | 2017-08-02 | A kind of Novel maintenance power box for power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720954416.6U CN206947797U (en) | 2017-08-02 | 2017-08-02 | A kind of Novel maintenance power box for power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206947797U true CN206947797U (en) | 2018-01-30 |
Family
ID=61370836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720954416.6U Expired - Fee Related CN206947797U (en) | 2017-08-02 | 2017-08-02 | A kind of Novel maintenance power box for power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206947797U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429489A (en) * | 2019-06-25 | 2019-11-08 | 南安市博铭工业设计有限公司 | A kind of electric power box convenient for fast break |
| CN110474242A (en) * | 2019-08-16 | 2019-11-19 | 蚌埠市鑫泰工程塑料制品有限公司 | A kind of waterproof anti-corrosion power supply box |
| CN111162466A (en) * | 2020-01-20 | 2020-05-15 | 广东中烟工业有限责任公司 | Modular convenient block terminal that overhauls |
| CN112527028A (en) * | 2020-11-28 | 2021-03-19 | 安徽金禾实业股份有限公司 | Regulating and controlling device for electric heater of synthesis tower |
| CN116879665B (en) * | 2023-09-07 | 2023-11-14 | 应急管理部沈阳消防研究所 | Power on-off control device and method |
-
2017
- 2017-08-02 CN CN201720954416.6U patent/CN206947797U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429489A (en) * | 2019-06-25 | 2019-11-08 | 南安市博铭工业设计有限公司 | A kind of electric power box convenient for fast break |
| CN110429489B (en) * | 2019-06-25 | 2020-08-25 | 江苏华鹏智能仪表科技股份有限公司 | Power box convenient to cut off power supply fast |
| CN110474242A (en) * | 2019-08-16 | 2019-11-19 | 蚌埠市鑫泰工程塑料制品有限公司 | A kind of waterproof anti-corrosion power supply box |
| CN111162466A (en) * | 2020-01-20 | 2020-05-15 | 广东中烟工业有限责任公司 | Modular convenient block terminal that overhauls |
| CN112527028A (en) * | 2020-11-28 | 2021-03-19 | 安徽金禾实业股份有限公司 | Regulating and controlling device for electric heater of synthesis tower |
| CN116879665B (en) * | 2023-09-07 | 2023-11-14 | 应急管理部沈阳消防研究所 | Power on-off control device and method |
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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 |
Granted publication date: 20180130 Termination date: 20180802 |
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| CF01 | Termination of patent right due to non-payment of annual fee |