CN112037458A - Fire alarm system for electric power system - Google Patents
Fire alarm system for electric power system Download PDFInfo
- Publication number
- CN112037458A CN112037458A CN202010761659.4A CN202010761659A CN112037458A CN 112037458 A CN112037458 A CN 112037458A CN 202010761659 A CN202010761659 A CN 202010761659A CN 112037458 A CN112037458 A CN 112037458A
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- CN
- China
- Prior art keywords
- operational amplifier
- pin
- smoke sensor
- electrode pin
- fire alarm
- 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.)
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
- A62C99/0027—Carbon dioxide extinguishers
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fire Alarms (AREA)
Abstract
The invention relates to a fire alarm system for an electric power system, which is characterized by comprising the following components: the smoke sensor is connected to the controller through a signal amplification circuit, the controller is connected with the electromagnetic valve, the wireless communication module and the local alarm, and the wireless communication module is communicated with the remote control center through a wireless communication network; the electromagnetic valve is arranged on an output pipe of the gas fire extinguisher, the output pipe is connected with a plurality of branch pipes, and the tail end of each branch pipe is provided with a spray nozzle.
Description
Technical Field
The invention belongs to the technical field of fire alarm, relates to fire alarm equipment, and particularly relates to a fire alarm system for an electric power system.
Background
The power system has a strategic position of putting a great deal in the whole social production activity, and the normal operation of various industries can not leave the stable operation of the power system. Therefore, ensuring the safety of each item of electrical equipment facility in the electrical power system has been an important issue for the safe operation of electrical power.
Facilities such as a power distribution cabinet, a power transformation cabinet and a transformer substation in the power system are easy to cause fire after lines are aged, so that the power grid cannot normally transmit power, and safety accidents are easy to cause.
In the prior art, the alarm after the fire is triggered has lag, and the execution of the fire extinguishing action has lag, so that the fire accident can not be extinguished in the initial moment, and then the large-area fire accident is caused. This is a disadvantage of the prior art.
In view of the above, the present application provides a fire alarm system for an electric power system; it is very necessary to solve the above technical problems in the prior art.
Disclosure of Invention
The present invention is directed to solve the above-mentioned problems by providing a fire alarm system for an electric power system, which overcomes the technical disadvantages of the prior art, such as delay in alarm warning after a fire occurs, delay in execution of a fire extinguishing operation, failure to extinguish a fire accident at an initial time, and large-area fire accidents.
In order to achieve the purpose, the invention provides the following technical scheme:
a fire alarm system for an electric power system, comprising:
the smoke sensor is connected to the controller through a signal amplification circuit, the controller is connected with the electromagnetic valve, the wireless communication module and the local alarm, and the wireless communication module is communicated with the remote control center through a wireless communication network;
the electromagnetic valve is arranged on an output pipe of the gas fire extinguisher, the output pipe is connected with a plurality of branch pipes, and the tail end of each branch pipe is provided with a spray nozzle;
the signal amplification circuit comprises:
the non-inverting input pin of the operational amplifier is connected to a power supply end, the inverting input pin of the operational amplifier is electrically connected to the output pin of the operational amplifier through a first capacitor, the positive power supply pin of the operational amplifier is electrically connected to the power supply end, the positive power supply pin of the operational amplifier is grounded through a grounded capacitor, and the negative power supply pin of the operational amplifier is grounded;
an output pin of the operational amplifier is connected to a return electrode pin of the smoke sensor, an inverted input pin of the operational amplifier is connected to a reference electrode pin of the smoke sensor through a first resistor and a second resistor which are connected in series, and a connection point of the first resistor and the second resistor is connected to the return electrode pin of the smoke sensor through a second capacitor;
a reference electrode pin of the smoke sensor is connected to a drain electrode pin of the field-effect tube, a source electrode pin of the field-effect tube is connected to a working electrode pin of the smoke sensor, and a grid electrode pin of the field-effect tube is connected to a power supply end through a third resistor;
the working electrode pin of the smoke sensor is connected to the controller.
Preferably, the operational amplifier is an SGM8634 operational amplifier.
Preferably, the field effect transistor is an MMBFJ117 field effect transistor.
Preferably, the controller is a single chip microcomputer controller; the development is simple and the cost is low.
Preferably, the wireless communication network is a GPRS communication network, data transmission is safe and reliable, and transmission efficiency is high.
Preferably, the local alarm comprises a buzzer and an alarm indicator light; two alarm modes are provided.
Preferably, the gas fire extinguisher stores high-pressure carbon dioxide gas; the carbon dioxide gas is adopted for fire extinguishing, so that the line cannot be damaged, and the fire extinguishing effect is good.
The smoke sensor has the beneficial effects that the signal amplification circuit can amplify the signal detected by the smoke sensor, so that the accuracy and the efficiency of detection are improved; the body alarm and body fire extinguishing equipment can be used for carrying out alarm processing locally when a fire disaster occurs, carrying out fire extinguishing processing immediately after the fire disaster occurs, and simultaneously remotely informing a remote control center so that the remote control center can send rescue teams for rescue; thus, the fire extinguishing treatment can be carried out at the moment of fire occurrence; effectively avoiding the large-area spread of the fire.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
Fig. 1 is a control schematic diagram of a fire alarm system for an electric power system according to the present invention.
Fig. 2 is a circuit schematic of the amplifying circuit of fig. 1.
The system comprises a smoke sensor 1, a signal amplification circuit 2, a controller 3, a solenoid valve 4, a wireless communication module 5, a local alarm 6, a remote control center 7, a gas fire extinguisher 8, an output pipe 9, a branch pipe 10, a spray nozzle 11, an operational amplifier 2.1, a first capacitor 2.2, a grounded capacitor 2.3, a first resistor 2.4, a second resistor 2.5, a second capacitor 2.6, a field effect tube 2.7 and a third resistor 2.8.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.
As shown in fig. 1 and 2, the present embodiment provides a fire alarm system for an electric power system, including:
the smoke sensor 1 is connected to a controller 3 through a signal amplification circuit 2, the controller 3 is connected with an electromagnetic valve 4, a wireless communication module 5 and a local alarm 6, and the wireless communication module 5 is communicated with a remote control center 7 through a wireless communication network; the wireless communication network is a GPRS communication network, data transmission is safe and reliable, and transmission efficiency is high. The local alarm 6 comprises a buzzer and an alarm indicator light; two alarm modes are provided.
The electromagnetic valve 4 is arranged on an output pipe 9 of a gas fire extinguisher 8, and high-pressure carbon dioxide gas is stored in the gas fire extinguisher; the carbon dioxide gas is adopted for fire extinguishing, so that the line cannot be damaged, and the fire extinguishing effect is good. The output pipe 9 is connected with a plurality of branch pipes 10, and the tail end of each branch pipe is provided with a spray head 11;
the signal amplification circuit 2 includes:
the operational amplifier 2.1, the operational amplifier 2.1 is an SGM8634 operational amplifier. The non-inverting input pin of the operational amplifier is connected to a power supply end, the inverting input pin of the operational amplifier is electrically connected to the output pin of the operational amplifier through a first capacitor 2.2, the positive power supply pin of the operational amplifier is electrically connected to the power supply end, the positive power supply pin of the operational amplifier is grounded through a grounded capacitor 2.3, and the negative power supply pin of the operational amplifier is grounded;
an output pin of the operational amplifier is connected to a return electrode pin of the smoke sensor 1, an inverted input pin of the operational amplifier is connected to a reference electrode pin of the smoke sensor through a first resistor and a second resistor 2.5 which are connected in series, and a connection point of the first resistor and the second resistor is connected to the return electrode pin of the smoke sensor through a second capacitor 2.6;
the reference electrode pin of the smoke sensor is connected to the drain electrode pin of a field effect tube 2.7, and the field effect tube 2.7 is an MMBFJ117 field effect tube. A source electrode pin of the field effect tube is connected to a working electrode pin of the smoke sensor, and a grid electrode pin of the field effect tube is connected to a power supply end through a third resistor 2.8;
the working electrode pin of the smoke sensor is connected to the controller. The controller 3 is a single chip microcomputer controller; the development is simple and the cost is low.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. A fire alarm system for an electric power system, comprising:
the smoke sensor is connected to the controller through a signal amplification circuit, the controller is connected with the electromagnetic valve, the wireless communication module and the local alarm, and the wireless communication module is communicated with the remote control center through a wireless communication network;
the electromagnetic valve is arranged on an output pipe of the gas fire extinguisher, the output pipe is connected with a plurality of branch pipes, and the tail end of each branch pipe is provided with a spray nozzle;
the signal amplification circuit comprises:
the non-inverting input pin of the operational amplifier is connected to a power supply end, the inverting input pin of the operational amplifier is electrically connected to the output pin of the operational amplifier through a first capacitor, the positive power supply pin of the operational amplifier is electrically connected to the power supply end, the positive power supply pin of the operational amplifier is grounded through a grounded capacitor, and the negative power supply pin of the operational amplifier is grounded;
an output pin of the operational amplifier is connected to a return electrode pin of the smoke sensor, an inverted input pin of the operational amplifier is connected to a reference electrode pin of the smoke sensor through a first resistor and a second resistor which are connected in series, and a connection point of the first resistor and the second resistor is connected to the return electrode pin of the smoke sensor through a second capacitor;
a reference electrode pin of the smoke sensor is connected to a drain electrode pin of the field-effect tube, a source electrode pin of the field-effect tube is connected to a working electrode pin of the smoke sensor, and a grid electrode pin of the field-effect tube is connected to a power supply end through a third resistor;
the working electrode pin of the smoke sensor is connected to the controller.
2. A fire alarm system for power system as claimed in claim 1, wherein the operational amplifier is SGM8634 operational amplifier.
3. A fire alarm system for power system as claimed in claim 1 or 2, wherein the fet is a MMBFJ117 fet.
4. The fire alarm system for the power system as claimed in claim 3, wherein the controller is a single chip controller.
5. The fire alarm system for power system of claim 4, wherein the wireless communication network is a GPRS communication network.
6. A fire alarm system for an electric power system according to claim 5, wherein the local alarm includes a buzzer and an alarm indicator.
7. The fire alarm system for an electric power system according to claim 6, wherein the gas extinguisher contains high pressure carbon dioxide gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761659.4A CN112037458A (en) | 2020-07-31 | 2020-07-31 | Fire alarm system for electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761659.4A CN112037458A (en) | 2020-07-31 | 2020-07-31 | Fire alarm system for electric power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112037458A true CN112037458A (en) | 2020-12-04 |
Family
ID=73582094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010761659.4A Pending CN112037458A (en) | 2020-07-31 | 2020-07-31 | Fire alarm system for electric power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112037458A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114445995A (en) * | 2021-12-20 | 2022-05-06 | 国网山东省电力公司东平县供电公司 | Fire monitoring and alarming system of power equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203408422U (en) * | 2013-09-04 | 2014-01-29 | 北京泰和佳消防设备有限公司 | Gas extinguishing remote driving control system |
| WO2018004598A1 (en) * | 2016-06-28 | 2018-01-04 | AKCess Pro Limited | Apparatus for power distribution, environment monitoring and fire protection for rack-mounted equipment |
| CN208460144U (en) * | 2018-05-30 | 2019-02-01 | 尚川川 | Domestic smoke alarms |
| CN111298331A (en) * | 2019-12-19 | 2020-06-19 | 哈尔滨朗昇电气股份有限公司 | Intelligent fireproof power distribution cabinet |
-
2020
- 2020-07-31 CN CN202010761659.4A patent/CN112037458A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203408422U (en) * | 2013-09-04 | 2014-01-29 | 北京泰和佳消防设备有限公司 | Gas extinguishing remote driving control system |
| WO2018004598A1 (en) * | 2016-06-28 | 2018-01-04 | AKCess Pro Limited | Apparatus for power distribution, environment monitoring and fire protection for rack-mounted equipment |
| CN208460144U (en) * | 2018-05-30 | 2019-02-01 | 尚川川 | Domestic smoke alarms |
| CN111298331A (en) * | 2019-12-19 | 2020-06-19 | 哈尔滨朗昇电气股份有限公司 | Intelligent fireproof power distribution cabinet |
Non-Patent Citations (1)
| Title |
|---|
| 刘明: ""使用电化学传感器的单电源、微功耗有毒气体探测器"", 《电子发烧友网》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114445995A (en) * | 2021-12-20 | 2022-05-06 | 国网山东省电力公司东平县供电公司 | Fire monitoring and alarming system of power equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201204 |
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| RJ01 | Rejection of invention patent application after publication |