CN211097175U - Fire automatic alarm linkage control system of main transformer of hydropower station - Google Patents
Fire automatic alarm linkage control system of main transformer of hydropower station Download PDFInfo
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- CN211097175U CN211097175U CN201922006588.2U CN201922006588U CN211097175U CN 211097175 U CN211097175 U CN 211097175U CN 201922006588 U CN201922006588 U CN 201922006588U CN 211097175 U CN211097175 U CN 211097175U
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Abstract
The utility model provides a water power station main transformer's conflagration automatic alarm coordinated control system belongs to the fire control field. The utility model discloses a main change room drenches valve coil, switch one, a plurality of main change detector, fire alarm control screen, computer monitored control system, main change high pressure side circuit breaker, main change low voltage side circuit breaker, main change accident oil extraction valve coil, switch two, switch three, switch four and switch five, and fire alarm control screen includes fire alarm controller, and computer monitored control system includes microprocessor, a plurality of main change detectors all connect fire alarm controller, and fire alarm controller passes through switch two and connects microprocessor, and main change room drenches valve coil and connects fire alarm controller through switch one, and main change accident oil extraction valve coil passes through switch five and connects microprocessor, and main change high voltage side circuit breaker passes through switch three and connects microprocessor, and main change low voltage side circuit breaker passes through switch four and connects microprocessor. When fire occurs, the circuit breakers on all sides can be disconnected and the oil discharge valve can be opened.
Description
Technical Field
The utility model relates to a fire control technique, in particular to conflagration automatic alarm coordinated control system of power station main transformer.
Background
An automatic fire alarm system for detecting the early characteristics of fire, sending out fire alarm signals, evacuating people, preventing fire from spreading and starting automatic fire extinguisher is composed of fire detector, fire alarm controller and fire-fighting linkage controller.
The main transformer room of the hydropower station is generally provided with fire fighting equipment, including a fire detector and a water spray fire extinguishing system. The fire detector comprises a temperature-sensing smoke-sensing probe, a flame detector, a temperature-sensing cable and the like; the water spray fire extinguishing system comprises a rain valve set, a water pipeline, a water spray nozzle and other equipment.
When two or more independent detectors in the main transformer chamber give an alarm, the fire-fighting linkage controller starts the deluge valve set to extinguish fire by water spray.
The existing main transformer chamber fire alarm and fire extinguishing system is designed in such a way that when a fire signal is monitored, water spray is immediately started to extinguish fire, circuit breakers on all sides of a main transformer are not simultaneously disconnected, and an accident oil discharge valve is not automatically opened, so that the transformer can explode and damage peripheral equipment, the damage degree of the transformer can be increased, the accident range is enlarged, and the accident loss is increased. As the unattended hydropower station is in an unattended state on the site at ordinary times, when a fire occurs in the main transformer chamber, no relevant personnel can perform emergency accident treatment at the first time, and the emergency accident treatment can only be performed through relevant devices.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a water power station main transformer's conflagration automatic alarm coordinated control system can send alarm signal to power station computer monitored control system when monitoring main change room and taking place the conflagration, starts automatic fire extinguishing facility simultaneously, and computer monitored control system receives behind the fire alarm signal automatic disconnection owner change each side circuit breaker, and the automatic main accident oil drain valve that opens simultaneously.
The utility model provides a its technical problem, the technical scheme of adoption is: the automatic fire alarm linkage control system of the main transformer of the hydropower station comprises a main transformer chamber deluge valve coil and a first switch, and also comprises a plurality of main transformer detectors, a fire alarm control screen, a computer monitoring system, a main transformer high-voltage side circuit breaker, a main transformer low-voltage side circuit breaker, a main transformer accident oil discharge valve coil, a second switch, a third switch, a fourth switch and a fifth switch, the fire alarm control screen comprises a fire alarm controller, the computer monitoring system comprises a microprocessor, the fire alarm control system is characterized in that the main transformer detectors are all connected with a fire alarm controller, the fire alarm controller is connected with a microprocessor through a second switch, a rain valve coil of a main transformer chamber is connected with the fire alarm controller through a first switch, an accident oil discharge valve coil of a main transformer is connected with the microprocessor through a fifth switch, a high-voltage side circuit breaker of the main transformer is connected with the microprocessor through a third switch, and a low-voltage side circuit breaker of the main transformer is connected with the microprocessor through a fourth switch.
Furthermore, each main transformer detector in the plurality of main transformer detectors is connected to a corresponding bus acquisition terminal in the fire alarm controller in a bus mode.
Specifically, the main transformer chamber deluge valve coil is connected with a power output terminal of the fire alarm controller through a switch I.
Furthermore, the main transformer accident oil drain valve coil is connected with a power output terminal of the microprocessor through a switch five.
Furthermore, the fire alarm controller is connected with a switching value acquisition terminal of the microprocessor through a switch II.
The beneficial effects of the utility model are that, through the conflagration automatic alarm coordinated control system of above-mentioned hydropower station main transformer, can be when monitoring main change room and taking place the conflagration, send alarm signal to power station computer monitoring system, start the automatic fire extinguishing facility simultaneously, computer monitoring system receives automatic disconnection main each side circuit breaker of main change behind the fire alarm signal, the automatic main accident oil drain valve that becomes of opening simultaneously, through outage and evacuation inside oil, the possibility of further explosion of transformer when meeting with the conflagration condition has been stopped, reduce the safety risk that the accident enlarges, effectively reduce the accident loss, the security of power station operation has been improved.
Drawings
Fig. 1 is a schematic structural composition diagram of an automatic fire alarm coordinated control system of a main transformer of a hydropower station of the invention.
Wherein, KM1 is the rain valve coil of the main transformer chamber, KM2 is the oil drain valve of main transformer accident, K1 is switch one, K2 is switch two, K3 is switch three, K4 is switch four, and K5 is switch five.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings.
The utility model discloses a water power station main transformer's fire automatic alarm coordinated control system, its structural composition schematic diagram refers to figure 1, wherein, this system includes main transformer room deluge valve coil KM1 and switch K1, still includes a plurality of main transformer detectors, fire alarm control screen, computer monitored control system, main transformer high pressure side circuit breaker, main transformer low pressure side circuit breaker, main transformer accident vent valve KM2 coil, switch two K2, switch three K3, switch four K4 and switch five K5, the fire alarm control screen includes fire alarm controller, computer monitored control system includes microprocessor, a plurality of main transformer detectors all connect fire alarm controller, fire alarm controller connects microprocessor through switch two K2, main transformer room deluge valve coil KM1 connects fire alarm controller through switch one K1, main transformer accident vent valve KM2 coil connects microprocessor through switch five K5, the main transformer high-voltage side circuit breaker is connected with the microprocessor through a switch three K3, and the main transformer low-voltage side circuit breaker is connected with the microprocessor through a switch four K4.
In the system, in order to facilitate signal transmission, each main transformer detector in the main transformer detectors can be accessed to a corresponding bus acquisition terminal in the fire alarm controller in a bus mode. The main transformer room deluge valve coil KM1 is connected with a power supply output terminal of the fire alarm controller through a switch K1. And a coil of the main transformer accident oil drain valve KM2 is connected with a power supply output terminal of the microprocessor through a five-K5 switch. And the fire alarm controller is connected with a switching value acquisition terminal of the microprocessor through a second switch K2.
In the practical application process, firstly, when a power station fire alarm system monitors that two or more independent main transformer detectors alarm in a main transformer chamber, namely the fire alarm detector of a fire alarm control screen receives at least two alarm signals respectively sent by the at least two main transformer detectors, the alarm signals are accessed to a bus acquisition terminal of a fire alarm controller in a bus mode, when the fire alarm control screen receives the alarm signals, an alarm contact, namely a switch II K2, is immediately driven to be closed, an alarm signal is sent to a computer monitoring system, meanwhile, the control for starting the main transformer deluge valve is sent, a switch I K1 is closed, and then the alarm signal is directly connected to a deluge valve coil through a 24V direct-current power supply to drive the main transformer deluge valve to act, and water spray fire extinguishing is carried out on a main.
When an alarm signal is connected to a switching value acquisition terminal of a computer monitoring system, the computer monitoring system immediately drives three output tripping contact switches three K3, four K4 and five K5 to be closed after receiving a main transformer chamber fire alarm signal from a fire alarm control screen, wherein the three K3 and the four K4 are respectively connected to tripping terminals in a main high-side circuit breaker operation box and a low-side circuit breaker operation box through corresponding output control terminals to trip off a main transformer, the main high-side circuit breaker and a low-side circuit breaker are tripped, the five K5 is directly connected to an accident oil drain valve coil through a 24V direct-current power supply through the corresponding output control terminals after being closed, and the accident oil drain valve KM2 is directly driven to act, so that the oil drain valve is opened to directly drain insulation oil in the main transformer.
Claims (5)
1. A fire automatic alarm linkage control system of a main transformer of a hydropower station comprises a main transformer chamber deluge valve coil and a first switch, it is characterized by also comprising a plurality of main transformer detectors, a fire alarm control screen, a computer monitoring system, a main transformer high-voltage side circuit breaker, a main transformer low-voltage side circuit breaker, a main transformer accident oil drain valve coil, a second switch, a third switch, a fourth switch and a fifth switch, the fire alarm control screen comprises a fire alarm controller, the computer monitoring system comprises a microprocessor, the fire alarm control system is characterized in that the main transformer detectors are all connected with a fire alarm controller, the fire alarm controller is connected with a microprocessor through a second switch, a rain valve coil of a main transformer chamber is connected with the fire alarm controller through a first switch, an accident oil discharge valve coil of a main transformer is connected with the microprocessor through a fifth switch, a high-voltage side circuit breaker of the main transformer is connected with the microprocessor through a third switch, and a low-voltage side circuit breaker of the main transformer is connected with the microprocessor through a fourth switch.
2. The automatic fire alarm coordinated control system of the main transformer of the hydropower station according to claim 1, wherein each main transformer detector in the plurality of main transformer detectors is connected to a corresponding bus acquisition terminal in the fire alarm controller by means of a bus.
3. The automatic fire alarm linkage control system for the main transformer of the hydropower station as claimed in claim 1, wherein the main transformer chamber deluge valve coil is connected with a power output terminal of the fire alarm controller through a switch I.
4. The automatic fire alarm linkage control system for the main transformer of the hydropower station as claimed in claim 1, wherein the main transformer accident oil discharge valve coil is connected with a power output terminal of the microprocessor through a switch five.
5. The automatic fire alarm linkage control system for the main transformer of the hydropower station as claimed in claim 1, wherein the fire alarm controller is connected with a switching value acquisition terminal of the microprocessor through a switch II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922006588.2U CN211097175U (en) | 2019-11-19 | 2019-11-19 | Fire automatic alarm linkage control system of main transformer of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922006588.2U CN211097175U (en) | 2019-11-19 | 2019-11-19 | Fire automatic alarm linkage control system of main transformer of hydropower station |
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| Publication Number | Publication Date |
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| CN211097175U true CN211097175U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922006588.2U Active CN211097175U (en) | 2019-11-19 | 2019-11-19 | Fire automatic alarm linkage control system of main transformer of hydropower station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247068A (en) * | 2021-12-22 | 2022-03-29 | 福建永福电力设计股份有限公司 | Implementation method of main transformer fire-fighting water spraying fire-extinguishing system |
| CN114504750A (en) * | 2022-01-28 | 2022-05-17 | 中国电建集团华东勘测设计研究院有限公司 | Water spray fire extinguishing control system and method for hydroelectric generating set |
-
2019
- 2019-11-19 CN CN201922006588.2U patent/CN211097175U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247068A (en) * | 2021-12-22 | 2022-03-29 | 福建永福电力设计股份有限公司 | Implementation method of main transformer fire-fighting water spraying fire-extinguishing system |
| CN114504750A (en) * | 2022-01-28 | 2022-05-17 | 中国电建集团华东勘测设计研究院有限公司 | Water spray fire extinguishing control system and method for hydroelectric generating set |
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