CN110570620A - Environmental flue gas monitoring early warning fire protection system of thermal power plant - Google Patents
Environmental flue gas monitoring early warning fire protection system of thermal power plant Download PDFInfo
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- CN110570620A CN110570620A CN201910696686.5A CN201910696686A CN110570620A CN 110570620 A CN110570620 A CN 110570620A CN 201910696686 A CN201910696686 A CN 201910696686A CN 110570620 A CN110570620 A CN 110570620A
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- 239000003546 flue gas Substances 0.000 title claims abstract description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 230000007613 environmental effect Effects 0.000 title claims description 15
- 239000007789 gas Substances 0.000 claims abstract description 212
- 238000009423 ventilation Methods 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 239000006260 foam Substances 0.000 description 13
- 239000003795 chemical substances by application Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- 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
- G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
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- Engineering & Computer Science (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Fuzzy Systems (AREA)
- Fire Alarms (AREA)
Abstract
The invention discloses a thermal power plant environment flue gas monitoring and early warning fire protection system, which comprises: a control module; a gas detection unit including an SO2 gas sensor, an NO gas sensor, a CO2 gas sensor, and an O2 gas sensor; the ventilation connecting end comprises an air inlet pipe and a ventilation automatic control valve, the air inlet pipe is installed at an air outlet of the ventilation connecting end in a threaded mode, and the ventilation automatic control valve is fixedly installed on the outer side, away from one end of the ventilation connecting end, of the air outlet pipe through bolts; the fan outside the plant generates wind power, the wind power outside the plant is conveyed into the main pipeline through the air inlet pipe, and then the wind power outside the plant is conveyed into the plant through the shunt pipeline and the air outlet head, so that the flow of air in the plant is accelerated, the content of various gases in the air in the plant is increased, and the danger is avoided.
Description
Technical Field
The invention relates to the technical field of fire prevention of power plants, in particular to an environmental flue gas monitoring, early warning and fire prevention system of a thermal power plant.
Background
A thermal power plant, referred to as a thermal power plant for short, is a plant that produces electric energy using a combustible (e.g., coal) as a fuel; the basic production process is as follows: when the fuel is burnt, water is heated to generate steam, chemical energy of the fuel is converted into heat energy, the steam pressure pushes a steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives a generator to rotate, so that the mechanical energy is converted into electric energy.
The in-process of thermal power factory electricity generation can burn a large amount of coals, consequently also can produce a large amount of flue gases, in order to guarantee that the conflagration emergence appears in the power plant, needs increase thermal power plant environment flue gas monitoring early warning fire protection system in the power plant.
Disclosure of Invention
The invention aims to provide an environmental flue gas monitoring, early warning and fireproof system for a thermal power plant, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a thermal power plant's environmental flue gas monitoring early warning fire protection system, includes: a control module; the gas detection unit comprises an SO2 gas sensor, an NO gas sensor, a CO2 gas sensor and an O2 gas sensor, wherein the SO2 gas sensor is used for detecting the SO2 gas content in the air in the power plant, the NO gas sensor is used for detecting the NO gas content in the air in the power plant, the CO gas sensor is used for detecting the CO gas content in the air in the power plant, the CO2 gas sensor is used for detecting the CO2 gas content in the air in the power plant, and the O2 gas sensor is used for detecting the O2 gas content in the air in the power plant; the ventilation connecting end comprises an air inlet pipe and a ventilation automatic control valve, the air inlet pipe is installed at an air outlet of the ventilation connecting end in a threaded mode, and the ventilation automatic control valve is fixedly installed on the outer side, away from one end of the ventilation connecting end, of the air outlet pipe through bolts; the fire extinguishing pipe is installed at the output end of the fire extinguishing connecting end in a threaded manner, and the fire extinguishing automatic control valve is fixedly installed on the outer side of one end, far away from the fire extinguishing connecting end, of the fire extinguishing pipe through a bolt; the three-way connector comprises a main pipeline, a shunt automatic control valve and an air outlet head, wherein the main pipeline is installed at the output end of the three-way connector in a threaded mode, the shunt pipelines are installed at the two sides of the outer wall of the main pipeline in a threaded mode, the shunt automatic control valve is fixedly installed on one side, close to the main pipeline, of the outer wall of the shunt pipeline through bolts, and the air outlet head is fixedly installed at one end, far away from the main pipeline, of the shunt pipeline through bolts; the three-way connector is provided with two input ends, one of the input ends of the three-way connector is in threaded connection with the air inlet pipe, and the other input end of the three-way connector is in threaded connection with the fire extinguishing pipe; the control module is respectively connected with the SO2 gas sensor, the NO gas sensor, the CO2 gas sensor, the O2 gas sensor, the ventilation automatic control valve, the fire extinguishing automatic control valve and the flow dividing automatic control valve.
Wherein, still include: and the power supply module is electrically connected with the control module and is used for providing power for the whole system.
wherein, still include: the temperature sensor, temperature sensor with control module electric connection, temperature sensor is arranged in detecting the temperature size in the air in the power plant.
Wherein, still include: the humidity sensor, humidity sensor with control module electric connection, humidity sensor is arranged in detecting the humidity content in the air in the power plant.
The SO2 gas sensor, the NO gas sensor, the CO2 gas sensor, the O2 gas sensor, the temperature sensor and the humidity sensor are respectively embedded at the edge of the upper surface of the air outlet head.
Wherein, still include: the display module further comprises a display screen, the display screen is electrically connected with the control module, and the display screen is used for displaying the numerical value of SO2 content in air in a power plant detected by the SO2 gas sensor, the numerical value of NO content in air in the power plant detected by the NO gas sensor, the numerical value of CO content in air in the power plant detected by the CO gas sensor, the numerical value of CO2 content in air in the power plant detected by the CO2 gas sensor, the numerical value of O2 content in air in the power plant detected by the O2 gas sensor, the numerical value of temperature in air in the power plant detected by the temperature sensor and the numerical value of humidity in air in the power plant detected by the humidity sensor.
Wherein, still include: the alarm module, the alarm module still includes warning light and speaker, control module respectively with the warning light with speaker electric connection.
The warning lamp comprises a red lamp, a green lamp and a yellow lamp, the red lamp is turned on when the SO2 gas content, the NO gas content, the CO2 gas content or the O2 gas content in the air in the power plant detected by the gas detection unit is not within a set range value, the green lamp is turned on when the temperature value in the air in the power plant detected by the temperature sensor exceeds a set limit value, and the yellow lamp is turned on when the humidity value in the air in the power plant detected by the humidity sensor is lower than the set limit value.
Wherein the speaker sounds a drip when one or more of the red light, the green light, and the yellow light is on.
Wherein, the trunk line passes through the bolt and installs at the power plant top, it passes through to go out the wind head shunt pipeline evenly hangs in the inside air in power plant.
Compared with the prior art, the invention has the beneficial effects that:
The method comprises the steps of detecting SO2 gas content in air in a power plant through an SO2 gas sensor, detecting NO gas content in air in the power plant through an NO gas sensor, detecting CO gas content in air in the power plant through a CO gas sensor, detecting O2 gas content in air in the power plant through a CO2 gas sensor, detecting O2 gas content in air in the power plant through an O2 gas sensor, detecting temperature in air in the power plant through a temperature sensor and detecting humidity in air in the power plant through a humidity sensor; when the SO2 gas content in the air in the power plant detected by the SO2 gas sensor exceeds 10 percent, the NO gas content in the air in the power plant detected by the NO gas sensor exceeds 8 percent, the CO gas content in the air in the power plant detected by the CO gas sensor exceeds 3.8 percent, the O2 gas content in the air in the power plant detected by the CO2 gas sensor exceeds 5.8 percent or the O2 gas content in the air in the power plant detected by the O2 gas sensor is lower than 18 percent, in one or more of the situations, the control module controls the ventilation automatic control valve to be opened, controls the fire extinguishing automatic control valve to be closed, simultaneously opens all the shunt automatic control valves, then a fan outside the plant generates wind power, the wind power outside is conveyed into the main pipeline through the air inlet pipe, then the wind power outside is conveyed into the plant through the shunt pipeline and the air outlet head, therefore, the flow of air in the plant is accelerated, and the content of various gases in the air in the plant is increased, so that the occurrence of danger is avoided; when the temperature in the air in the power plant detected by the temperature sensor exceeds 55 ℃ or the humidity in the air in the power plant detected by the humidity sensor is lower than 30%, the situation that a fire possibly occurs in the plant is indicated, in order to avoid the occurrence of the fire, then the control module controls the ventilation automatic control valve to be closed, controls the fire extinguishing automatic control valve to be opened, simultaneously opens the corresponding shunt automatic control valve which detects that the temperature exceeds 55 ℃ or the humidity is lower than 30%, then a foam fire extinguishing device outside the plant conveys the generated foam fire extinguishing agent into the fire extinguishing pipe, then the foam fire extinguishing agent is conveyed into the main pipeline through the fire extinguishing pipe, and then the foam fire extinguishing agent is sprayed to the position where the temperature exceeds 55 ℃ or the humidity is lower than 30% through the corresponding shunt pipeline, so that the occurrence of the fire is avoided, and the safety inside of the plant is improved.
drawings
FIG. 1 is a schematic diagram of a hardware control system according to the present invention;
FIG. 2 is a schematic view of the structure of the ventilating device of the present invention;
Fig. 3 is an enlarged structural schematic view of an air outlet head in the ventilation device of the present invention.
in FIGS. 1-3: 10-a control module; 11-a power supply module; 20-a gas detection unit; a 21-SO2 gas sensor; a 22-NO gas sensor; 23-CO gas sensor; a 24-CO2 gas sensor; a 25-O2 gas sensor; 30-a temperature sensor; 40-a humidity sensor; 50-a display module; 51-a display screen; 60-an alarm module; 61-warning light; 62-a loudspeaker; 70-a ventilation connection end; 71-an air inlet pipe; 72-a ventilation self-control valve; 80-fire extinguishing connecting end; 81-fire extinguishing pipe; 82-fire extinguishing automatic control valve; 90-three-way connectors; 91-a main pipeline; 92-a shunt conduit; 93-shunt automatic control valve; 94-air outlet head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a thermal power plant's environmental flue gas monitoring early warning fire protection system, includes: a control module 10, a power supply module 11, a gas detection unit 20, a temperature sensor 30, a humidity sensor 40, a display module 50, an alarm module 60, a ventilation connection 70, a fire extinguishing connection 80, and a three-way connector 90.
the control module 10 may be a circuit including at least one processor, a circuit including at least one single chip, or a combination of multiple circuits or chips, as long as the corresponding functions can be realized. It will be understood to those skilled in the art that the control module 10 may also implement the corresponding functions in a pure hardware manner for a common circuit composed of an amplifier, a comparator, a triode, a MOS transistor, and the like.
The power supply module 11 comprises an external power supply and a secondary battery, wherein the external power supply is 220V alternating current; the secondary battery may be a nickel-hydrogen battery, a nickel-cadmium battery, a lead storage battery, and a lithium battery, which may be separately charged for subsequent use.
Wherein the gas detection unit 20 includes an SO2 gas sensor 21, an NO gas sensor 22, a CO gas sensor 23, a CO2 gas sensor 24, and an O2 gas sensor 25.
The control module 10 is electrically connected to the SO2 gas sensor 21, the NO gas sensor 22, the CO gas sensor 23, the CO2 gas sensor 24, and the O2 gas sensor 25, respectively.
The model of the SO2 gas sensor 21 is SO2-D4SO2 gas sensor, the SO2 gas sensor 21 is used for detecting the SO2 gas content in the air in the power plant, the detected SO2 gas content is converted into an electric signal and is uploaded to the control module 10, then the control module 10 compares the received SO2 gas content signal with the SO2 gas content set by the control module 10, and when the SO2 gas content in the air in the power plant detected by the SO2 gas sensor 21 exceeds 10%, the control module 10 controls the alarm module 60 to alarm.
The model of the NO gas sensor 22 is NO/CF-100NO gas sensor, the NO gas sensor 22 detects the NO gas content in the air in the power plant, the detected NO gas content is converted into an electric signal and uploaded to the control module 10, the control module 10 compares the received NO gas content signal with the NO gas content set by itself, and when the NO gas content in the air in the power plant detected by the NO gas sensor 22 exceeds 8%, the control module 10 controls the alarm module 60 to alarm.
The CO gas sensor 23 is a ZCQDH-001CO gas sensor, the CO gas sensor 23 is used for detecting the content of CO gas in air in the power plant, the detected content of the CO gas is converted into an electric signal and uploaded to the control module 10, the control module 10 compares the received CO gas content signal with the CO gas content set by the control module 10, and when the content of the CO gas in the air in the power plant detected by the CO gas sensor 23 exceeds 3.8%, the control module 10 controls the alarm module 60 to give an alarm.
The CO2 gas sensor 24 is an MH-410D infrared CO2 gas sensor, the CO2 gas sensor 24 is used for detecting the O2 gas content in the air in the power plant, the detected CO2 gas content is converted into an electric signal and is uploaded to the control module 10, then the control module 10 compares the received CO2 gas content with the CO2 gas content set by the control module 10, and when the O2 gas content in the air in the power plant detected by the CO2 gas sensor 24 exceeds 5.8%, the control module 10 controls the alarm module 60 to alarm.
the O2 gas sensor 25 is a SO-E2-960O2 gas sensor, the O2 gas sensor 25 is used for detecting the O2 gas content in the air in the power plant, the detected O2 gas content is converted into an electric signal and is uploaded to the control module 10, then the control module 10 compares the received O2 gas content with the O2 gas content set by the control module 10, and when the O2 gas content in the air in the power plant detected by the O2 gas sensor 25 is lower than 18%, the control module 10 controls the alarm module 60 to alarm.
the temperature sensor 30 is electrically connected to the control module 10, and the temperature sensor 30 is used for detecting the temperature of the air in the power plant.
The model of the temperature sensor 30 is PT100 temperature sensor, the temperature sensor 30 detects the temperature of the air in the power plant, the detected temperature value is converted into an electric signal and is uploaded to the control module 10, then the control module 10 compares the received temperature value with the temperature range set by itself, and when the temperature of the air in the power plant detected by the temperature sensor 30 exceeds 55 ℃, the control module 10 controls the alarm module 60 to alarm.
The humidity sensor 40 is electrically connected to the control module 10, and the humidity sensor 40 is used for detecting the humidity content in the air in the power plant.
The model of the humidity sensor 40 is an HTU20D humidity sensor, the humidity sensor 40 detects the humidity in the air in the power plant, converts the detected humidity value into an electric signal and uploads the electric signal to the control module 10, the control module 10 compares the received humidity value with the humidity range set by itself, and when the humidity in the air in the power plant detected by the humidity sensor 40 is lower than 30%, the control module 10 controls the alarm module 60 to alarm.
The display module 50 further includes a display screen 51, the display screen 51 is electrically connected to the control module 10, and the display screen 51 may be a liquid crystal display screen or an electronic ink display screen.
The display screen 51 displays the numerical value of the SO2 content in the air in the power plant detected by the SO2 gas sensor 21, the numerical value of the NO content in the air in the power plant detected by the NO gas sensor 22, the numerical value of the CO content in the air in the power plant detected by the CO gas sensor 23, the numerical value of the CO2 content in the air in the power plant detected by the CO2 gas sensor 24, the numerical value of the O2 content in the air in the power plant detected by the O2 gas sensor 25, the numerical value of the temperature in the air in the power plant detected by the temperature sensor 30 and the numerical value of the humidity in the air in the power plant detected by the humidity sensor 40.
Wherein, the display screen 51 sets up in the monitor room of power plant, and the staff can monitor SO2 content SO2 numerical value, NO content numerical value, CO2 content numerical value, O2 content numerical value, temperature size numerical value and humidity size numerical value in the air of each position in the power plant through display screen 51.
The alarm module 60 includes a warning light 61 and a speaker 62, and the control module 10 is electrically connected to the warning light 61 and the speaker 62, respectively.
wherein, the warning light 61 comprises a red light, a green light and a yellow light, when the SO2 gas content in the air in the power plant detected by the SO2 gas sensor 21 exceeds 10%, when the NO gas content in the air in the power plant detected by the NO gas sensor 22 exceeds 8%, when the CO gas content in the air in the power plant detected by the CO gas sensor 23 exceeds 3.8%, when the O2 gas content in the air in the power plant detected by the CO2 gas sensor 24 exceeds 5.8%, or when the O2 gas content in the air in the power plant detected by the O2 gas sensor 25 is lower than 18%, the control module 10 controls the red light to be on, thereby reminding the attention of the staff; when the temperature in the air in the power plant detected by the temperature sensor 30 exceeds 55 ℃, the control module 10 controls the green light to be turned on, so as to remind the staff of paying attention; when the humidity in the air in the power plant detected by the humidity sensor 40 is lower than 30%, the control module 10 controls the yellow light to be turned on, so as to remind the worker of the attention.
wherein, when one or more of the red light, the green light and the yellow light is on, the control module 10 controls the speaker 62 to emit a dripping alarm.
Wherein, warning light 61 and speaker 62 are installed in the work factory building in the power plant to warning light 61 and speaker 62 are provided with the multiunit, and the interval that sets up of every group warning light 61 and speaker 62 is 40 meters, and the staff just can judge the condition of air in the factory building through observing warning light 61, can remind the staff to notice through speaker 62 simultaneously.
wherein, the ventilation connecting end 70 is arranged outside the factory building of the power plant and is connected with the fan output end outside the factory building through the ventilation connecting end 70.
The ventilation connecting end 70 comprises an air inlet pipe 71 and a ventilation automatic control valve 72, the air inlet pipe 71 is installed at an air outlet of the ventilation connecting end 70 in a threaded mode, and the ventilation automatic control valve 72 is fixedly installed on the outer side, far away from one end of the ventilation connecting end 70, of the air outlet pipe 71 through bolts.
Wherein, the control module 10 is electrically connected with the ventilation self-control valve 72.
Wherein, the connection end 80 of putting out a fire sets up in the factory building outside of power plant, is connected with the outside foam extinguishing device of factory building through connection end 80 of putting out a fire.
The fire extinguishing connecting end 80 comprises a fire extinguishing pipe 81 and a fire extinguishing automatic control valve 82, the fire extinguishing pipe 81 is installed at the output end of the fire extinguishing connecting end 80 in a threaded mode, and the fire extinguishing automatic control valve 82 is fixedly installed on the outer side, far away from one end of the fire extinguishing pipe 81, of the fire extinguishing connecting end 80 through bolts.
Wherein, the control module 10 is electrically connected with the fire-extinguishing self-control valve 82.
Wherein, three way connection 90 sets up in the factory building outside of power plant, and three way connection 90 has two input, and one of three way connection 90 input and air-supply line 71 threaded connection, another and the fire extinguishing pipe 81 threaded connection of three way connection 90 input.
Wherein, three way connection ware 90 includes trunk line 91, reposition of redundant personnel pipeline 92, reposition of redundant personnel automatic control valve 93 and goes out wind head 94, and trunk line 91 is installed to three way connection ware 90 output screw thread, and reposition of redundant personnel pipeline 92 is installed to the equal screw thread in both sides of trunk line 91 outer wall, and the one side that the outer wall of reposition of redundant personnel pipeline 92 is close to trunk line 91 has reposition of redundant personnel automatic control valve 93 through bolt fixed mounting, and the one end that the trunk line 91 was kept away from to reposition of redundant personnel pipeline 92 has a wind head.
Wherein, trunk line 91 adopts the steel pipe that the internal diameter size is 15cm, and trunk line 91 passes through the bolt and installs at the factory building top in power plant.
Wherein, reposition of redundant personnel pipeline 92 is the steel pipe of L type structure, and reposition of redundant personnel pipeline 92's internal diameter size is 6cm to reposition of redundant personnel pipeline 92 symmetry sets up the both sides at trunk line 91 outer wall, and reposition of redundant personnel pipeline 92 is provided with the multiunit, and the interval between reposition of redundant personnel pipeline 92 is 150 cm.
The control module 10 is electrically connected to the shunt automatic control valve 93, and controls the closing of the shunt pipeline 92 through the shunt automatic control valve 93.
Wherein, the air-out head 94 is the toper structure, and the air-out head 94 is installed in reposition of redundant personnel pipeline 92 bottom, through reposition of redundant personnel pipeline 92 with the air-out head 94 suspension in the factory building in the midair to guarantee that the distance size of air-out head 94 to ground is 3 meters.
wherein, the SO2 gas sensor 21, the NO gas sensor 22, the CO gas sensor 23, the CO2 gas sensor 24, the O2 gas sensor 25, the temperature sensor 30 and the humidity sensor 40 are respectively embedded at the edge of the upper surface of the air outlet head 94.
Wherein, when the SO2 gas content in the air in the power plant detected by the SO2 gas sensor 21 exceeds 10%, when the NO gas content in the air in the power plant detected by the NO gas sensor 22 exceeds 8%, when the CO gas content in the air in the power plant detected by the CO gas sensor 23 exceeds 3.8%, when the O2 gas content in the air in the power plant detected by the CO2 gas sensor 24 exceeds 5.8%, or when the O2 gas content in the air in the power plant detected by the O2 gas sensor 25 is lower than 18%, in one or more of these cases, the control module 10 controls the ventilation automatic control valve 72 to be opened, controls the fire extinguishing automatic control valve 82 to be closed, simultaneously opens all the shunt automatic control valves 93, then the fan outside the plant generates wind power, and conveys the outside wind power into the main wind inlet pipe 91 through the wind inlet pipe 71, and conveys the outside wind power into the plant through the shunt pipe 92 and the wind outlet head 94, therefore, the flowing of air in the factory building is accelerated, and the content of various gases in the air in the factory building is increased, so that the danger is avoided.
wherein, when the temperature of the air in the power plant detected by the temperature sensor 30 exceeds 55 ℃ or when the humidity of the air in the power plant detected by the humidity sensor 40 is lower than 30%, it indicates that there is a possibility of a fire in the plant, in order to avoid the fire, the control module 10 then controls the ventilation self-control valve 72 to close, controls the fire-extinguishing self-control valve 82 to open, meanwhile, a shunt automatic control valve 93 corresponding to the detected temperature of over 55 ℃ or the detected humidity of lower than 30 percent is opened, then the foam extinguishing apparatus outside the plant delivers the generated foam extinguishing agent into the extinguishing pipe 81, and then the foam extinguishing agent is conveyed into the main pipeline 91 through the fire extinguishing pipe 81, and then the foam extinguishing agent is sprayed to the position with the temperature exceeding 55 ℃ or the humidity lower than 30% through the corresponding shunt pipeline 92, so that the fire is avoided, and the safety inside the factory building is improved.
The working principle is as follows: in use, the SO2 gas content in the air in the power plant is detected through the SO2 gas sensor 21, the NO gas content in the air in the power plant is detected through the NO gas sensor 22, the CO gas content in the air in the power plant is detected through the CO gas sensor 23, the O2 gas content in the air in the power plant is detected through the CO2 gas sensor 24, and the O2 gas content in the air in the power plant is detected through the O2 gas sensor 25; when the SO2 gas content in the air in the power plant detected by the SO2 gas sensor 21 exceeds 10%, the NO gas content in the air in the power plant detected by the NO gas sensor 22 exceeds 8%, the CO gas content in the air in the power plant detected by the CO gas sensor 23 exceeds 3.8%, the O2 gas content in the air in the power plant detected by the CO2 gas sensor 24 exceeds 5.8%, or the O2 gas content in the air in the power plant detected by the O2 gas sensor 25 is less than 18%, in one or more of these cases, the control module 10 controls the ventilation automatic control valve 72 to open, controls the fire extinguishing automatic control valve 82 to close, and simultaneously opens all the shunt automatic control valves 93, then the fan outside the plant generates wind power, and delivers the outside wind power into the main duct 91 through the air inlet duct 71, and delivers the outside wind power into the plant through the shunt duct 92 and the air outlet head 94, therefore, the flow of air in the plant is accelerated, and the content of various gases in the air in the plant is increased, so that the occurrence of danger is avoided; when the temperature in the air in the power plant detected by the temperature sensor 30 exceeds 55 ℃ or the humidity in the air in the power plant detected by the humidity sensor 40 is lower than 30%, which indicates that a fire may occur in the plant, in order to avoid the fire, the control module 10 controls the ventilation automatic control valve 72 to close, controls the fire-extinguishing automatic control valve 82 to open, and simultaneously opens the shunt automatic control valve 93 corresponding to the detected temperature exceeding 55 ℃ or the detected humidity being lower than 30%, then the foam fire-extinguishing device outside the plant delivers the generated foam fire-extinguishing agent into the fire-extinguishing pipe 81, then delivers the foam fire-extinguishing agent into the main pipe 91 through the fire-extinguishing pipe 81, and then sprays the foam fire-extinguishing agent to the position where the temperature exceeds 55 ℃ or the humidity is lower than 30% through the corresponding shunt pipe 92, thereby avoiding the fire from occurring and improving the safety inside the plant.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a thermal power plant environment flue gas monitoring early warning fire protection system which characterized in that includes:
A control module (10);
A gas detection unit (20), wherein the gas detection unit (20) comprises an SO2 gas sensor (21), an NO gas sensor (22), a CO gas sensor (23), a CO2 gas sensor (24) and an O2 gas sensor (25), the SO2 gas sensor (21) is used for detecting the SO2 gas content in the air in the power plant, the NO gas sensor (22) is used for detecting the NO gas content in the air in the power plant, the CO gas sensor (23) is used for detecting the CO gas content in the air in the power plant, the CO2 gas sensor (24) is used for detecting the CO2 gas content in the air in the power plant, and the O2 gas sensor (25) is used for detecting the O2 gas content in the air in the power plant;
The ventilation connecting end (70) comprises an air inlet pipe (71) and a ventilation automatic control valve (72), the air inlet pipe (71) is installed at an air outlet of the ventilation connecting end (70) in a threaded mode, and the ventilation automatic control valve (72) is fixedly installed on the outer side, away from one end of the ventilation connecting end (70), of the air outlet pipe (71) through bolts;
The fire extinguishing connecting end (80) comprises a fire extinguishing pipe (81) and a fire extinguishing self-control valve (82), the fire extinguishing pipe (81) is installed at the output end of the fire extinguishing connecting end (80) in a threaded mode, and the fire extinguishing self-control valve (82) is fixedly installed on the outer side of one end, far away from the fire extinguishing connecting end (80), of the fire extinguishing pipe (81) through bolts;
The three-way connector (90) comprises a main pipeline (91), a shunt pipeline (92), a shunt automatic control valve (93) and an air outlet head (94), wherein the main pipeline (91) is installed at the output end of the three-way connector (90) in a threaded mode, the shunt pipeline (92) is installed on the two sides of the outer wall of the main pipeline (91) in a threaded mode, the shunt automatic control valve (93) is fixedly installed on one side, close to the main pipeline (91), of the outer wall of the shunt pipeline (92) through bolts, and the air outlet head (94) is fixedly installed at one end, far away from the main pipeline (91), of the shunt pipeline (92) through bolts;
Wherein the three-way connector (90) is provided with two input ends, one of the input ends of the three-way connector (90) is in threaded connection with the air inlet pipe (71), and the other input end of the three-way connector (90) is in threaded connection with the fire extinguishing pipe (81);
the control module (10) is respectively connected with the SO2 gas sensor (21), the NO gas sensor (22), the CO gas sensor (23), the CO2 gas sensor (24), the O2 gas sensor (25), the ventilation automatic control valve (72), the fire extinguishing automatic control valve (82) and the flow dividing automatic control valve (93).
2. the environmental flue gas monitoring and early warning fire protection system of a thermal power plant according to claim 1, further comprising:
the power supply module (11), the power supply module (11) with control module (10) electric connection, power supply module (11) are used for providing power for whole system.
3. The environmental flue gas monitoring and early warning fire protection system of a thermal power plant according to claim 1, further comprising:
The temperature sensor (30), temperature sensor (30) with control module (10) electric connection, temperature sensor (30) are used for detecting the temperature size in the air in the power plant.
4. The environmental flue gas monitoring and early warning fire protection system of a thermal power plant according to claim 1, further comprising:
humidity transducer (40), humidity transducer (40) with control module (10) electric connection, humidity transducer (40) are arranged in detecting the humidity content in the air in the power plant.
5. the environmental flue gas monitoring and early warning fire protection system of the thermal power plant according to claim 4, comprising:
The SO2 gas sensor (21), the NO gas sensor (22), the CO gas sensor (23), the CO2 gas sensor (24), the O2 gas sensor (25), the temperature sensor (30) and the humidity sensor (40) are respectively embedded at the edge of the upper surface of the air outlet head (94).
6. The environmental flue gas monitoring and early warning fire protection system of a thermal power plant according to claim 5, further comprising:
The display module (50) further comprises a display screen (51), the display screen (51) is electrically connected with the control module (10), and the display screen (51) is used for displaying a content value of SO2 in air in the power plant detected by the SO2 gas sensor (21), a content value of NO in air in the power plant detected by the NO gas sensor (22), a content value of CO in air in the power plant detected by the CO gas sensor (23), a content value of CO2 in air in the power plant detected by the CO2 gas sensor (24), a content value of O2 in air in the power plant detected by the O2 gas sensor (25), a temperature value in air in the power plant detected by the temperature sensor (30), and a humidity value in air in the power plant detected by the humidity sensor (40).
7. The environmental flue gas monitoring and early warning fire protection system of a thermal power plant according to claim 1, further comprising:
alarm module (60), alarm module (60) still include warning light (61) and speaker (62), control module (10) respectively with warning light (61) with speaker (62) electric connection.
8. The environmental flue gas monitoring, early warning and fire preventing system of the thermal power plant as claimed in claims 3, 4 and 7, comprising:
the warning lamp (61) comprises a red lamp, a green lamp and a yellow lamp, the red lamp is turned on when the SO2 gas content, the NO gas content, the CO2 gas content or the O2 gas content in the air in the power plant detected by the gas detection unit (20) is not within a set range value, the green lamp is turned on when the temperature value in the air in the power plant detected by the temperature sensor (30) exceeds a set limit value, and the yellow lamp is turned on when the humidity value in the air in the power plant detected by the humidity sensor (40) is lower than the set limit value.
9. The environmental flue gas monitoring and early warning fire protection system of the thermal power plant according to claim 8, comprising:
The speaker (62) sounds a drip alert when one or more of the red light, the green light, and the yellow light is on.
10. The environmental flue gas monitoring and early warning fire protection system of the thermal power plant according to claim 1, comprising:
Trunk line (91) pass through the bolt and install at the power plant top, it passes through to go out wind head (94) reposition of redundant personnel pipeline (92) evenly hang in the inside air of power plant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910696686.5A CN110570620A (en) | 2019-07-30 | 2019-07-30 | Environmental flue gas monitoring early warning fire protection system of thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910696686.5A CN110570620A (en) | 2019-07-30 | 2019-07-30 | Environmental flue gas monitoring early warning fire protection system of thermal power plant |
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| CN110570620A true CN110570620A (en) | 2019-12-13 |
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| CN201910696686.5A Pending CN110570620A (en) | 2019-07-30 | 2019-07-30 | Environmental flue gas monitoring early warning fire protection system of thermal power plant |
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Application publication date: 20191213 |