CN203146292U - Switching control device of nuclear power plant fire pump - Google Patents
Switching control device of nuclear power plant fire pump Download PDFInfo
- Publication number
- CN203146292U CN203146292U CN 201320112848 CN201320112848U CN203146292U CN 203146292 U CN203146292 U CN 203146292U CN 201320112848 CN201320112848 CN 201320112848 CN 201320112848 U CN201320112848 U CN 201320112848U CN 203146292 U CN203146292 U CN 203146292U
- Authority
- CN
- China
- Prior art keywords
- pump
- voltage stabilizing
- chip
- unit
- door chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model provides a switching control device of a nuclear power plant pressure-stabilization fire pump. The switching control device of the nuclear power plant pressure-stabilization fire pump is connected with a switch cabinet, three input ends of an input command processing logic element are connected with state-and-failure signal equipment of the switch cabinet, fire annihilator pipe pressure signal equipment of the switch cabinet and operation command receiving equipment of the switch cabinet respectively, and two output ends of the input command processing logic element are connected to a failure processing logic element and an output command generation logic element respectively. Two input ends of the failure processing logic element are connected with an output end of a state processing logic element and an output end of the output command generation logic element respectively, and the failure processing logic element is connected to an input end of the output command generation logic element and a displaying alarm apparatus. One input end of the state processing logic element is connected with switch position state feedback equipment of the switch cabinet, and one output end of the state processing logic element is connected to the displaying alarm apparatus. One output end of the output command generation element is connected to pressure-stabilization controlling equipment of the switch cabinet. The switching control device of the nuclear power plant pressure-stabilization fire pump is small in size, low in cost, simple in operation and high in reliability.
Description
Technical field
The utility model relates to nuclear power station fire-fighting stabilized pressure pump technical field, particularly relates to a kind of nuclear power station fire-fighting stabilized pressure pump switching control.
Background technique
In power plant, stabilized pressure pump in the fire-fighting system is the pressure stability for automatic sprinkling system and fire hydrant water supply system, the system hydraulic pressure of making is in the requirement pressure state all the time, fire-fighting water be can satisfy and the required water yield and hydraulic pressure flowed out, for 2 the fire-fighting stabilized pressure pumps (A pump and B pump) that guaranteed safe operated by rotary motion, the using and the reserved, when reaching requirement, external pressure then starts the A pump, when reaching requirement, next pressure then starts the B pump, so alternately start, to guarantee that each stabilized pressure pump can often start, avoid crucial moment stabilized pressure pump can not start problem.When fire, the reliability of stabilized pressure pump COMM communication is most important for nuclear power plant's unit safety operation, more is related to the safe operation of nuclear island.Conventional art is by the contactor, thermorelay, auxiliary reclay and the time relay that are installed in the on-site control; Be loaded on control switch and the tutorial light in control room; And conjunction cable forms the function that control loop satisfies interlocking and monitor alarm, and the relay volume is bigger, have wiring complexity, poor reliability, difficult in maintenance, efficient is low, the defective that the attendant is more, operation cost is high of input.
The model utility content
Based on this, the utility model provides a kind of nuclear power station fire-fighting stabilized pressure pump switching control, this device volume is little, cost is low, line is less, simple to operate, reliability is higher.
A kind of nuclear power station fire-fighting stabilized pressure pump switching control, be connected with switch cubicle, comprise input instruction process logic component, fault treatment logic component, state processing logic component, output order formation logic element, operational order receiving equipment and display alarm device;
Three input ends of described input instruction process logic component are connected with the operational order receiving equipment with the fire hose reel pressure signal equipment of the state of switch cubicle and trouble signal equipment, switch cubicle respectively, and two output terminals of described input instruction process logic component are connected to an input end of described fault treatment logic component and an input end of described output order formation logic element respectively;
Wherein two input ends of described fault treatment logic component are connected with the output terminal of described state processing logic component and the output terminal of described output order formation logic element respectively; Wherein two output terminals of described fault treatment logic component are connected to input end and the display alarm device of described output order formation logic element respectively;
An input end of described state processing logic component is connected with the switching position feedback of status equipment of switch cubicle, and one of them output terminal is connected to display alarm device;
An output terminal of described output order formation logic element is connected to the stabilized pressure pump control apparatus of described switch cubicle.
Therein among embodiment, the state of described switch cubicle and trouble signal equipment comprise the control switch of voltage stabilizing B pump operation unit, voltage stabilizing A failure of pump unit, voltage stabilizing A pump operation time quantum, voltage stabilizing B pump operation time quantum and a distant place/on the spot position units in the distance, by inserting each operation port of switch cubicle, can get access to the running state of stabilized pressure pump.
Therein among embodiment, described operational order receiving equipment comprises selects DCS control unit, voltage stabilizing B pump closing unit, voltage stabilizing B pump to open unit, voltage stabilizing A pump operation unit, and the staff can manually control by 25 pairs of stabilized pressure pumps of operational order receiving equipment.
Among embodiment, described fire hose reel pressure signal equipment comprises the low unit of fire hose reel pressure and fire hose reel pressure normal cell therein, obtains the pressure condition of fire hose reel by fire hose reel pressure signal equipment 26.
Therein among embodiment, described switching position feedback of status equipment comprise voltage stabilizing B failure of pump unit, voltage stabilizing B pump control switch combined floodgate unit, voltage stabilizing B pump control switch in the unit, working position, voltage stabilizing B pump control switch separating brake unit, by inserting the switching position feedback of status equipment 12 of switch cubicle, obtain the switching position situation of stabilized pressure pump.
Among embodiment, described display alarm device comprises fault indication device, run indicator and trip indicator, is used to indicate the current running state of stabilized pressure pump therein.
Therein among embodiment, described input instruction process logic component comprise the first, second, third and the 4th with door chip and first comparable chip, described fault treatment logic component comprise the 5th with door chip and second comparable chip, described state processing logic component comprise the 6th and the 7th with the door chip, described output order formation logic element comprises third and fourth comparable chip;
The low unit of described fire hose reel pressure and described voltage stabilizing A failure of pump unit all be connected to first with a door chip;
Two output terminals of described voltage stabilizing B pump operation unit be connected to respectively first with the door chip and the 5th with the door chip;
Described voltage stabilizing A pump operation time quantum and voltage stabilizing B pump operation time quantum all by first comparable chip be connected to described first with the door chip;
The control switch of a described distant place/on the spot in the distance three output terminals of position units be connected to respectively first with a door chip, second with the door chip and the 5th with a chip;
Two output terminals of described selection DCS control unit be connected to respectively second with the door chip and the 3rd with a door chip;
Described voltage stabilizing B pump closing unit be connected to second with the door chip;
Described voltage stabilizing B pump open the unit be connected to the 3rd with a door chip;
Described voltage stabilizing A pump operation unit be connected to the 4th with the door chip;
Described voltage stabilizing B failure of pump unit is connected to second comparable chip;
Described voltage stabilizing B pump control switch combined floodgate unit and voltage stabilizing B pump control switch are connected to run indicator by the 6th with the door chip at a wherein end of unit, working position;
Described voltage stabilizing B pump control switch separating brake unit and voltage stabilizing B pump control switch are connected to trip indicator by the 7th with the door chip at the other end of unit, working position;
First all by three comparable chip is connected to combined floodgate switch in stabilized pressure pump control apparatus with door chip and the 4th with chip with a door chip, second;
The 3rd all is connected to trip switch in the stabilized pressure pump control apparatus by the 4th comparable chip with door chip and fire hose reel pressure normal cell.
Therein among embodiment, described fire hose reel pressure atresia signal element by first delayer be connected to described first with a door chip;
Described first with the door chip be connected to described the 3rd comparable chip by second delayer;
The described the 4th with the door chip be connected to described the 3rd comparable chip by the 3rd delayer;
Switching control function by above-mentioned each logic chip realization stabilized pressure pump has advantages such as volume is little, wiring is simple.
Among embodiment, described fault indication device, described run indicator and described trip indicator are the tutorial light of three kinds of different colours therein, are used for the running state of stabilized pressure pump is indicated.
Above-mentioned nuclear power station fire-fighting stabilized pressure pump switching control, employing is based on DCS(distributed control systems, decentralized control system) the integrated logical process element of control system is realized the switching control function of stabilized pressure pump, simplified the control wiring, it is little to have volume, the advantage that reaction velocity is fast, device has been cancelled the function control loop in the conventional art, the staff can monitor and control by the utility model switching control stabilized pressure pump runnability, effectively improved the automatization level of stabilized pressure pump control, unfailing performance and efficient are higher, can significantly reduce maintenance cost simultaneously.
Description of drawings
Fig. 1 is the utility model nuclear power station fire-fighting stabilized pressure pump switching control structural representation in one embodiment.
Fig. 2 is the utility model nuclear power station fire-fighting stabilized pressure pump switching control structural representation in another embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.
As shown in Figure 1, be the utility model nuclear power station fire-fighting stabilized pressure pump switching control structural representation in one embodiment, this device is connected with switch cubicle, comprises input instruction process logic component 21, fault treatment logic component 22, state processing logic component 23, output order formation logic element 24, operational order receiving equipment 25, fire hose reel pressure signal equipment 26 and display alarm device 27;
Three input ends of described input instruction process logic component 21 are connected with operational order receiving equipment 25 with the state of switch cubicle and trouble signal equipment 22, fire hose reel pressure signal equipment 26 respectively, and two output terminals of described input instruction process logic component 21 are connected to an input end of described fault treatment logic component 22 and an input end of described output order formation logic element 24 respectively;
Wherein two input ends of described fault treatment logic component 22 are connected with the output terminal of described state processing logic component 23 and the output terminal of described output order formation logic element 24 respectively; Wherein two output terminals of described fault treatment logic component 22 are connected to input end and the display alarm device 27 of described output order formation logic element 24 respectively;
An input end of described state processing logic component 23 is connected with the switching position feedback of status equipment 12 of switch cubicle, and one of them output terminal is connected to display alarm device 27;
An output terminal of described output order formation logic element 24 is connected to the stabilized pressure pump control apparatus 13 of described switch cubicle;
Described input instruction process logic component 21 receives the signal instruction of other equipment inputs, and other equipment include fire hose reel pressure signal equipment 26, can collect the current pressure condition of fire hose reel; Also include state and trouble signal equipment 11, can collect two running statees that stabilized pressure pump is current; Also comprise operational order receiving equipment 25 simultaneously, receive the operational order of staff's input, each input instruction signal is judged its logic feasibility through the Detecting element of input instruction process logic component 21, for fault treatment logic component 22 and output order formation logic element 24 provide corresponding processing result; State processing logic component 23 receives and handles the switching position state of stabilized pressure pump, and the switching position state of stabilized pressure pump is sent to fault treatment logic component 22; Fault treatment logic component 22 exports the fault instruction to display alarm device 27 and carries out interface caution and warning according to the logical order decision logic feasibility of input, simultaneously the fault instruction is sent to output order formation logic element 24; Output order formation logic element 24 is according to the result of input instruction process logic component 21 and fault treatment logic component 22 decision logic feasibilities, and the result exported in the stabilized pressure pump control apparatus 13 of switch cubicle, starts the control loop of stabilized pressure pump.
The work control flow of this device is as follows: received staff's input instruction by operational order receiving equipment 25; Carried out the feasibility of decision logic by the logical process element; Feasible instruction formation logic exports stabilized pressure pump control apparatus 13 to; Logic is judged infeasible, then trouble signal is exported to display alarm device 27, and trouble signal is reported to the police.
As shown in Figure 2, be the utility model nuclear power station fire-fighting stabilized pressure pump switching control structural representation in another embodiment; In this embodiment, the state of described switch cubicle and trouble signal equipment 11 can comprise the control switch of voltage stabilizing B pump operation unit 111, voltage stabilizing A failure of pump unit 112, voltage stabilizing A pump operation time quantum 113, voltage stabilizing B pump operation time quantum 114 and a distant place/on the spot position units 115 in the distance; By inserting each operation port of switch cubicle, can get access to the running state of stabilized pressure pump;
Described operational order receiving equipment 25 can comprise selects DCS control unit 251, voltage stabilizing B pump closing unit 252, voltage stabilizing B pump to open unit 253, voltage stabilizing A pump operation unit 254; The staff can manually control by 25 pairs of stabilized pressure pumps of operational order receiving equipment;
Described fire hose reel pressure signal equipment 26 can comprise the low unit 261 of fire hose reel pressure and fire hose reel pressure normal cell 262, obtains the pressure condition of fire hose reel by fire hose reel pressure signal equipment 26;
Described switching position feedback of status equipment 12 can comprise voltage stabilizing B failure of pump unit 121, voltage stabilizing B pump control switch combined floodgate unit 122, voltage stabilizing B pump control switch in unit, working position 123, voltage stabilizing B pump control switch separating brake unit 124; By inserting the switching position feedback of status equipment 12 of switch cubicle, obtain the switching position situation of stabilized pressure pump.
Described display alarm device 27 can comprise fault indication device 271, run indicator 272 and trip indicator 273, is used to indicate the current running state of stabilized pressure pump.
In the present embodiment, described input instruction process logic component 21 comprise the first, second, third and the 4th with door chip (211～214) and first comparable chip 215, described fault treatment logic component 22 comprise the 5th with door chip 221 and second comparable chip 222, described state processing logic component 23 comprise the 6th and the 7th with the door chip (231～232), described output order formation logic element 24 comprises third and fourth comparable chip (241～242);
The low unit 261 of described fire hose reel pressure and described voltage stabilizing A failure of pump unit 112 all be connected to first with a door chip 211;
Two output terminals of described voltage stabilizing B pump operation unit 111 be connected to respectively first with the door chip 211 and the 5th with the door chip 221;
Described voltage stabilizing A pump operation time quantum 113 and voltage stabilizing B pump operation time quantum 114 all by first comparable chip 215 be connected to described first with the door chip 211;
The control switch of a described distant place/on the spot in the distance three output terminals of position units 115 be connected to respectively first with a door chip 211, second with door chip 212 and the 5th with a chip 221;
Two output terminals of described selection DCS control unit 251 be connected to respectively second with door chip 212 and the 3rd with a door chip 213;
Described voltage stabilizing B pump closing unit 252 be connected to second with the door chip 212;
Described voltage stabilizing B pump open unit 253 be connected to the 3rd with a door chip 213;
Described voltage stabilizing A pump operation unit 254 be connected to the 4th with the door chip 214;
Described voltage stabilizing B failure of pump unit 121 is connected to second comparable chip 222;
Described voltage stabilizing B pump control switch combined floodgate unit 121 and voltage stabilizing B pump control switch are connected to run indicator 272 by the 6th with door chip 231 at a wherein end of unit, working position 123;
Described voltage stabilizing B pump control switch separating brake unit 124 and voltage stabilizing B pump control switch are connected to trip indicator 273 by the 7th with door chip 232 at the other end of unit, working position 123;
First all by three comparable chip 241 is connected to stabilized pressure pump combined floodgate switch 131 in stabilized pressure pump control apparatus 13 with door chip 212 and the 4th with chip 214 with a door chip 211, second;
The 3rd all is connected to trip switch 132 in the stabilized pressure pump control apparatus 13 by the 4th comparable chip 242 with door chip 213 and fire hose reel pressure normal cell 262;
Switching control function by above-mentioned each logic chip realization stabilized pressure pump has advantages such as volume is little, wiring is simple.
In the present embodiment, described fire hose reel pressure signal equipment 26 by first delayer 216 be connected to described first with the door chip 211;
Described first with the door chip 211 be connected to described the 3rd comparable chip 241 by second delayer 217;
The described the 4th with the door chip 214 be connected to described the 3rd comparable chip 241 by the 3rd delayer 218.
In the present embodiment, described fault indication device 271, described run indicator 272 and described trip indicator 273 can be the tutorial light of three kinds of different colours, are used for the running state of stabilized pressure pump is indicated.
The utility model nuclear power station fire-fighting stabilized pressure pump switching control, adopt the DCS system to realize the switching function of stabilized pressure pump, simplified the control wiring, device adopts various integrated logic chips, has the advantage that volume is little, reaction velocity is fast, device has been cancelled the function control loop in the conventional art, the staff monitors and controls stabilized pressure pump runnability by the utility model switching control, effectively improved the automatization level of stabilized pressure pump control, unfailing performance and efficient are higher, can significantly reduce maintenance cost simultaneously.
The above embodiment has only expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. nuclear power station fire-fighting stabilized pressure pump switching control, be connected with switch cubicle, it is characterized in that, comprise input instruction process logic component, fault treatment logic component, state processing logic component, output order formation logic element, operational order receiving equipment and display alarm device;
Three input ends of described input instruction process logic component are connected with the operational order receiving equipment with the fire hose reel pressure signal equipment of the state of switch cubicle and trouble signal equipment, switch cubicle respectively, and two output terminals of described input instruction process logic component are connected to an input end of described fault treatment logic component and an input end of described output order formation logic element respectively;
Wherein two input ends of described fault treatment logic component are connected with the output terminal of described state processing logic component and the output terminal of described output order formation logic element respectively; Wherein two output terminals of described fault treatment logic component are connected to input end and the display alarm device of described output order formation logic element respectively;
An input end of described state processing logic component is connected with the switching position feedback of status equipment of switch cubicle, and one of them output terminal is connected to display alarm device; An output terminal of described output order formation logic element is connected to the stabilized pressure pump control apparatus of described switch cubicle.
2. nuclear power station fire-fighting stabilized pressure pump switching control according to claim 1, it is characterized in that the state of described switch cubicle and trouble signal equipment comprise the control switch of voltage stabilizing B pump operation unit, voltage stabilizing A failure of pump unit, voltage stabilizing A pump operation time quantum, voltage stabilizing B pump operation time quantum and a distant place/on the spot position units in the distance.
3. nuclear power station fire-fighting stabilized pressure pump switching control according to claim 1 is characterized in that, described operational order receiving equipment comprises selects DCS control unit, voltage stabilizing B pump closing unit, voltage stabilizing B pump to open unit, voltage stabilizing A pump operation unit.
4. nuclear power station fire-fighting stabilized pressure pump switching control according to claim 1 is characterized in that, described fire hose reel pressure signal equipment comprises the low unit of fire hose reel pressure and fire hose reel pressure normal cell.
5. nuclear power station fire-fighting stabilized pressure pump switching control according to claim 1, it is characterized in that, described switching position feedback of status equipment comprise voltage stabilizing B failure of pump unit, voltage stabilizing B pump control switch combined floodgate unit, voltage stabilizing B pump control switch in the unit, working position, voltage stabilizing B pump control switch separating brake unit.
6. nuclear power station fire-fighting stabilized pressure pump switching control according to claim 1 is characterized in that described display alarm device comprises fault indication device, run indicator and trip indicator.
7. according to each described nuclear power station fire-fighting stabilized pressure pump switching control of claim 2 to 6, it is characterized in that, described input instruction process logic component comprise the first, second, third and the 4th with door chip and first comparable chip, described fault treatment logic component comprise the 5th with door chip and second comparable chip, described state processing logic component comprise the 6th and the 7th with the door chip, described output order formation logic element comprises third and fourth comparable chip;
The low unit of described fire hose reel pressure and described voltage stabilizing A failure of pump unit all be connected to first with a door chip;
Two output terminals of described voltage stabilizing B pump operation unit be connected to respectively first with the door chip and the 5th with the door chip;
Described voltage stabilizing A pump operation time quantum and voltage stabilizing B pump operation time quantum all by first comparable chip be connected to described first with the door chip;
The control switch of a described distant place/on the spot in the distance three output terminals of position units be connected to respectively first with a door chip, second with the door chip and the 5th with a chip;
Two output terminals of described selection DCS control unit be connected to respectively second with the door chip and the 3rd with a door chip;
Described voltage stabilizing B pump closing unit be connected to second with the door chip;
Described voltage stabilizing B pump open the unit be connected to the 3rd with a door chip;
Described voltage stabilizing A pump operation unit be connected to the 4th with the door chip;
Described voltage stabilizing B failure of pump unit is connected to second comparable chip;
Described voltage stabilizing B pump control switch combined floodgate unit and voltage stabilizing B pump control switch are connected to run indicator by the 6th with the door chip at a wherein end of unit, working position;
Described voltage stabilizing B pump control switch separating brake unit and voltage stabilizing B pump control switch are connected to trip indicator by the 7th with the door chip at the other end of unit, working position;
First all by three comparable chip is connected to combined floodgate switch in stabilized pressure pump control apparatus with door chip and the 4th with chip with a door chip, second;
The 3rd all is connected to trip switch in the stabilized pressure pump control apparatus by the 4th comparable chip with door chip and fire hose reel pressure normal cell.
8. nuclear power station fire-fighting stabilized pressure pump switching control according to claim 7 is characterized in that, described fire hose reel pressure atresia signal element by first delayer be connected to described first with the door chip;
Described first with the door chip be connected to described the 3rd comparable chip by second delayer;
The described the 4th with the door chip be connected to described the 3rd comparable chip by the 3rd delayer.
9. nuclear power station fire-fighting stabilized pressure pump switching control according to claim 6 is characterized in that described fault indication device, described run indicator and described trip indicator are the tutorial light of three kinds of different colours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112848 CN203146292U (en) | 2013-03-12 | 2013-03-12 | Switching control device of nuclear power plant fire pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112848 CN203146292U (en) | 2013-03-12 | 2013-03-12 | Switching control device of nuclear power plant fire pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146292U true CN203146292U (en) | 2013-08-21 |
Family
ID=48973823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320112848 Expired - Fee Related CN203146292U (en) | 2013-03-12 | 2013-03-12 | Switching control device of nuclear power plant fire pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146292U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159519A (en) * | 2019-06-27 | 2019-08-23 | 泰豪科技股份有限公司 | A kind of immersible pump the using and the reserved control system and method |
| CN114992137A (en) * | 2022-03-23 | 2022-09-02 | 华能核能技术研究院有限公司 | Control method and device for fire-fighting pressure-stabilizing pump, electronic equipment and storage medium |
-
2013
- 2013-03-12 CN CN 201320112848 patent/CN203146292U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159519A (en) * | 2019-06-27 | 2019-08-23 | 泰豪科技股份有限公司 | A kind of immersible pump the using and the reserved control system and method |
| CN114992137A (en) * | 2022-03-23 | 2022-09-02 | 华能核能技术研究院有限公司 | Control method and device for fire-fighting pressure-stabilizing pump, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201364488Y (en) | Electric switching control module for nuclear power station electric power plant | |
| CN204570911U (en) | Power station maintenance collecting well drainage control system | |
| CN101944771A (en) | Secondary loop panoramic state monitoring system for electric operating mechanism of circuit breaker | |
| CN105262208A (en) | Ship shore power automatic conversion device | |
| CN102961842A (en) | Fire alarm joint control system applied to chemical enterprise | |
| CN206164082U (en) | Ore deposit lost circulation electric protection device based on pour into signal method into | |
| CN203146292U (en) | Switching control device of nuclear power plant fire pump | |
| CN204515467U (en) | Powerhouse of hydropower station seepage sump drainage control system | |
| CN209637969U (en) | A kind of intelligent water pump secondary circuit combination vacuum magnetic starter | |
| CN201392993Y (en) | DCS control module for nuclear power engineering transformer | |
| CN204563405U (en) | A kind of coal preparation plant Fire Control Cabinet | |
| CN103550895A (en) | Fire pump controlling and monitoring device | |
| CN102537469B (en) | Remote monitoring device of electric valve of iron ore concentrate pipeline and monitoring method of remote monitoring device | |
| CN201365140Y (en) | Feeder line switch control module for nuclear power station electric power plant | |
| CN204940427U (en) | Power station life fire fighting supply intelligence control system | |
| CN102694412B (en) | Intelligent controller for intelligent simulation type fire-fighting inspection electric control cabinet | |
| CN202666261U (en) | Automatic patrolling and examining equipment for fire pump | |
| CN204959873U (en) | A two frequency conversion automatic switching system for water supply equipment | |
| CN208582904U (en) | A kind of intelligent circuit plate number inspection control cabinet | |
| CN103065428A (en) | Alarming method of converting station monitoring system | |
| CN202373969U (en) | Intelligent current protection device | |
| CN202103475U (en) | Dual power supply automatic changeover switch control system | |
| CN203183559U (en) | Fire protecting and alarming linkage control system for chemical enterprises | |
| CN206673564U (en) | A kind of pump-storage generator accident standby trip protection device | |
| CN205605400U (en) | Rainwater pump electric control system of rainwater pump station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute of CEEC |
|
| 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: 20130821 Termination date: 20210312 |