CN108705984A - A kind of device and method of confined space fire prevention and anti-suffocation - Google Patents
A kind of device and method of confined space fire prevention and anti-suffocation Download PDFInfo
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- CN108705984A CN108705984A CN201810941223.6A CN201810941223A CN108705984A CN 108705984 A CN108705984 A CN 108705984A CN 201810941223 A CN201810941223 A CN 201810941223A CN 108705984 A CN108705984 A CN 108705984A
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- confined space
- vacuum pump
- valve body
- air inlet
- extract system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00792—Arrangement of detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/008—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being air quality
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
Abstract
The invention discloses a kind of device and methods of confined space fire prevention and anti-suffocation, and described device includes extract system, smoke alarm, oxygen sensor and controller；Smoke alarm is for detecting smokescope in confined space；Oxygen sensor is for detecting oxygen concentration in confined space；Extract system is for extracting air；Controller connect control extract system with smoke alarm, oxygen sensor and extract system respectively.The method includes detecting smokescope and oxygen concentration in confined space in real time；Judge whether smokescope is more than or equal to the first preset value in confined space；If so, the gas in confined space is evacuated to outside confined space；Judge whether oxygen concentration is less than or equal to the second preset value in confined space；If so, the gas outside confined space is evacuated in confined space.Fire extinguishing not will produce pollution in this way；The safety of child can be improved in oxygen supply in this way.The present invention has the advantages that contamination-freely to put out a fire, without security risk supply oxygen.
Description
Technical field
The present invention relates to safety guard field more particularly to device and the sides of a kind of confined space fire prevention and anti-suffocation
Method.
Background technology
With the continuous improvement of economic level, automobile is increasingly becoming the indispensable vehicle of people's go off daily.Parent needs
When wanting vehicle away from keyboard, usually child can be stayed in car, to avoid child from being climbed out of from vehicle window, vehicle window is closed in parents' meeting, vehicle
Interior environment confined air gas does not circulate, and can cause oxygen insufficient after a period of time, the child of self-saving ability is not easy asphyxia.In height
Summer under the conditions of temperature, car are easy to catch fire.
The problem of catching fire for car, there are a kind of automatic fire extinguishers of patent CN107648778A and automobile, patents
CN107648778A discloses a kind of automatic fire extinguisher and automobile, detects ignition point by sensor, transfers data to
Controller, controller can control simultaneously opens solenoid valve by data processing, and the extinguishing chemical in fire extinguisher ejects, will be fiery
Extinguish.The extinguishing chemical that the device ejects can destroy environment inside car, need to clean automobile after fire extinguishing, therefore use more not
Just, also uneconomical, in addition, alignment burning things which may cause a fire disaster obviously can not be completely secured in nozzle, if burning things which may cause a fire disaster can not be directed at, the effect of fire extinguishing will receive greatly
It influences.
The problem of suffocating in sealed vehicle for child, there are a kind of interior human body asphyxias of preventions of patent CN107650837A
Automatic early-warning window device drops, judge that after vehicle is out of service within the presetting time, car is whether by sensor sensing
There are human life features, and then using the switch of step motor control automotive window and open size and speed.Though child
It will not suffocate, but this undoubtedly reduces the safety of vehicle, the opening of vehicle window can allow other people to take advantage of a weak point, and child can be in danger
Among danger.
Invention content
For this reason, it may be necessary to a kind of device and method of confined space fire prevention and anti-suffocation be provided, to solve to send out in the prior art
Environment inside car can be polluted by the extinguishing device of spray fire extinguishing agent, the anti-suffocation that control vehicle window is opened when oxygen deficiency when calamity of lighting a fire
Device reduces the problem of vehicle safety.
To achieve the above object, a kind of device of confined space fire prevention and anti-suffocation, including pumping system are inventor provided
System, smoke alarm, oxygen sensor and controller；
The smoke alarm is for detecting smokescope in confined space；
The oxygen sensor is for detecting oxygen concentration in confined space；
The extract system is used to take out the gas outside confined space in confined space, or for will be in confined space
Gas is taken out in outside confined space；
The controller is connect with smoke alarm, oxygen sensor and extract system respectively, for according to confined space
Interior smokescope control extract system takes out the gas outside confined space in confined space, and for according to oxygen in confined space
Gas concentration controls extract system and takes out the gas in confined space in outside confined space.
Further, the extract system includes two-position four-way solenoid valve and first vacuum pump, the two-position four-way
Solenoid valve includes valve body, spool and driving mechanism, and the valve inner is valve chamber；
The spool includes push rod and three push plates, and three push plates are series at the shaft of push rod, and three push plates can live
It is set in valve chamber dynamicly；
The driving mechanism is sequentially connected with push rod, is moved along valve chamber for driving push rod, the controller and driving machine
Structure, the connection of the first vacuum pump, for controlling driving mechanism, the first vacuum pump starts or stops；
The valve body is disposed with the first gas outlet along the length direction of push rod, the first switching port, air inlet, second cuts
Change mouth and the second gas outlet；First gas outlet and the second gas outlet are connect with the vacuum noz(zle) of the first vacuum pump, it is described into
Gas port is connect with the exhaust nozzle of the first vacuum pump, and first switching port is connected to confined space external environment, second switching
Mouth and environmental communication in confined space；
The spool is movable to the first toggle bit or the second toggle bit under the driving of driving mechanism, and the spool is located at
When the first toggle bit, the first switching port and the first gas outlet are enclosed by push plate in sealing space, and the second switching port and air inlet
It is enclosed in another sealing space by push plate；When the spool switches on the second toggle bit, the first switching port and air inlet are by push plate
It encloses in sealing space, and the second switching port and the second gas outlet are enclosed by push plate in another sealing space.
Further, the driving mechanism includes armature, electromagnet and elastic component, and the armature is connect with push rod；It is described
Armature is connect with spool, and the electromagnet is oppositely arranged with armature, the armature can under the promotion of electromagnet with spool from
It is moved to the first toggle bit or the second toggle bit；The controller is connect with electromagnet, the startup for controlling electromagnet or pass
It closes；The both ends of the elastic component are connected respectively at spool, valve body, for closing rear-guard movable valve plug return in electromagnet.
Further, the extract system includes the second vacuum pump and third vacuum pump；The air-breathing of second vacuum pump
Mouth is connected to confined space external environment, environmental communication in the exhaust nozzle and confined space of the second vacuum pump；The third vacuum pump
Vacuum noz(zle) and confined space in environmental communication, the exhaust nozzle of third vacuum pump is connected to confined space external environment；The control
Device connect with the second vacuum pump, third vacuum pump, and for controlling the second vacuum pump, third vacuum pump starts or stops.
Further, the extract system includes the first air inlet pipe, the second air inlet pipe, the first escape pipe, the second escape pipe
And the 4th vacuum pump；
The vacuum noz(zle) of 4th vacuum pump by the first air inlet pipe, the second air inlet pipe respectively with environment in confined space,
Confined space external environment is connected to；The exhaust nozzle of 4th vacuum pump by the first escape pipe, the second escape pipe respectively with it is closed
Environment, the connection of confined space external environment in space；
First air inlet pipe, the second air inlet pipe, the first escape pipe, the second escape pipe are respectively arranged with the first valve body,
Two valve bodies, third valve body, the 4th valve body；The controller is connect with the first valve body, the second valve body, third valve body, the 4th valve body,
It is turned on and off for controlling the first valve body, the second valve body, third valve body, the 4th valve body.
Further, further include signal processor, the signal processor respectively with smoke alarm, oxygen sensor and
Controller connects, for that will be converted into electric signal by smoke alarm, oxygen sensor acquisition information respectively, and send control to
Device.
Inventor additionally provides a kind of method of confined space fire prevention and anti-suffocation, the method includes：
Smokescope and oxygen concentration in detection confined space in real time；
Judge whether smokescope is more than or equal to the first preset value in confined space；
If so, the gas in confined space is evacuated to outside confined space；
Judge whether oxygen concentration is less than or equal to the second preset value in confined space；
If so, the gas outside confined space is evacuated in confined space.
Further, first preset value is 0.06%, and second preset value is 15%.
It is different from the prior art, the device and method of confined space fire prevention and anti-suffocation described in above-mentioned technical proposal, institute
It includes extract system, smoke alarm, oxygen sensor and controller to state device；Smoke alarm is for detecting in confined space
Smokescope；Oxygen sensor is for detecting oxygen concentration in confined space；Extract system is used for the gas outside confined space
It takes out in confined space, or for taking out the gas in confined space in outside confined space；Controller respectively with smoke alarm,
Oxygen sensor and extract system connection, will be outside confined space for controlling extract system according to smokescope in confined space
Gas is taken out in confined space, and for according to oxygen concentration control extract system in confined space by the gas in confined space
It takes out in outside confined space.The method includes detecting smokescope and oxygen concentration in confined space in real time；Judge confined space
Whether interior smokescope is more than or equal to the first preset value；If so, the gas in confined space is evacuated to outside confined space；Judge
Whether oxygen concentration is less than or equal to the second preset value in confined space；If so, the gas outside confined space is evacuated to confined air
In.Above-mentioned apparatus and method be it is interior nobody and there is fire extinguishing chemical fire extinguishing pollution environment, without fire and oxygen occurs
There are two kinds of situations of security risk to each provide solution for insufficient driving window, for it is interior nobody and there is fire with going out
The problem of fiery agent fire extinguishing pollution environment, can by by the air in confined space pull out come so that be in confined space
Vacuum state, fiery then extinguish naturally not for the oxygen of fire burning in confined space, such fire-fighting mode will not be to closed
Environmental pollution is caused in space, without cleaning；For without generation fire and oxygen deficiency driving window asking there are security risk
Air outside confined space, can be evacuated in confined space by topic, to increase the oxygen concentration in confined space, prevent in close
The biology closed in space suffocates because of oxygen deficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram one of the device of confined space fire prevention and anti-suffocation that one embodiment of the invention is related to；
Fig. 2 is the structural schematic diagram two of the device of confined space fire prevention and anti-suffocation that one embodiment of the invention is related to；
Fig. 3 is the structural schematic diagram for the extract system that another embodiment of the present invention is related to；
Fig. 4 is the method flow diagram of confined space fire prevention and anti-suffocation that one embodiment of the invention is related to；
Fig. 5 is the annexation figure of the device of confined space fire prevention and anti-suffocation that one embodiment of the invention is related to；
Fig. 6 is the annexation figure of the device of confined space fire prevention and anti-suffocation that another embodiment of the present invention is related to.
Reference sign：
1, smoke alarm；
2, oxygen sensor；
3, signal processor；
4, controller；
5, two-position four-way solenoid valve；50, the first gas outlet；51, the first switching port；52, air inlet；
53, the second switching port；54, the second gas outlet；
6, push rod；
7, push plate；
8, armature；
9, electromagnet；
10, elastic component；
11, the first vacuum pump；
12, vacuum noz(zle)；
13, exhaust nozzle；
14, the first air inlet pipe；140, the first valve body；
15, the second air inlet pipe；150, the second valve body；
16, the first escape pipe；160, third valve body；
17, the second escape pipe；170, the 4th valve body；
18, the 4th vacuum pump.
Specific implementation mode
For the technology contents of technical solution, construction feature, the objects and the effects are described in detail, below in conjunction with specific reality
It applies example and attached drawing is coordinated to be explained in detail.
It please refers to Fig.1 to Fig. 6, the present invention provides a kind of device and methods of confined space fire prevention and anti-suffocation, close
Close that space is on fire and confined space exists under the not simultaneous precondition of biology, for when confined space is on fire fire extinguishing,
It is supplied oxygen when biological anoxic in confined space, is particularly suitable for vehicle, be such as used for vehicle, such device and method are in fire extinguishing
Compartment will not be polluted, subsequent cleaning can be saved, in oxygen supply, without opening vehicle window, can be beaten to avoid because of vehicle window
It opens and generates the case where jeopardizing property or personal safety.
In the particular embodiment, the device of the confined space fire prevention and anti-suffocation includes extract system, cigarette sense detection
Device 1, oxygen sensor 2 and controller 4.Smoke detector realizes fire disasters protection, cigarette by monitoring the concentration of smog
It is sensed using ion type smog inside Fog detector, ion type smog sensor is that one kind is technologically advanced, stable and reliable in work
Sensor is widely used in various fire protection alarm systems, and performance is much better than the fire-alarm of gas sensing resistance class.In we
In case, the smoke alarm 1 is used to detect smokescope in confined space, and when smokescope is higher than certain value, to control
Device 4 processed sends pumping signal.The oxygen sensor 2 can be again oxygen detection instrument, for oxygen in continuous monitoring of environmental air
The percent concentration of gas.In the present solution, the oxygen sensor 2 for detecting oxygen concentration in confined space, and in oxygen
When concentration is less than certain value, pumping signal is sent to controller 4.The extract system be used for by outside confined space gas take out in
In confined space, the air containing a large amount of oxygen is provided for confined space, prevents biology from suffocating in confined space, or being used for will
Gas in confined space is taken out in outside confined space, alloing confined space become vacuum state, and oxygen is also just not present, closed
The intensity of a fire in space can be controlled, and finally be extinguished.
Controller 4 refers to changing the wiring of main circuit or control circuit and changing resistance value in circuit according to predetermined order
Startup, speed governing, braking and reversely main of control motor etc. enable device.By program counter, command register, Instruction decoding
Device, clock generator and operation and control device 4 form, it is the policy-making body of publication order, that is, complete coordination and the entire meter of commander
The operation of calculation machine system.In the present solution, the controller 4 respectively with smoke alarm 1, oxygen sensor 2 and extract system
Connection, for being taken out the gas outside confined space in confined space according to smokescope control extract system in confined space
(the pumping signal that smoke detector is sent out is received, and controls extract system and takes out the gas outside confined space in confined space
It is interior), confined space can be become vacuum state, loses burning item by such extract system when fire occurs for confined space
The fire of part just can extinguish easily.The extract system is additionally operable to will according to oxygen concentration control extract system in confined space
Gas in confined space is taken out in (receiving the pumping signal that oxygen sensor 2 sends out outside confined space, and control extract system
Gas in confined space is taken out in outside confined space), such extract system can in confined space bio tank/oxygen it is insufficient
When, the air to circulate outside confined space is evacuated in confined space, the biology in confined space can rely in the air extracted
The oxygen breathing carried.
In order to realize that the gas in confined space can be evacuated to outside confined space by extract system, and can be by confined space
Outer gas is evacuated in confined space, is please referred to Fig.1, Fig. 2 and Fig. 5, in a further embodiment, the extract system includes
Two-position four-way solenoid valve 5 and first vacuum pump 11.Vacuum pump refer to using machinery, physics, chemically or physically chemistry side
Method is to being evacuated and being obtained the device or equipment of vacuum by pumping container.For popular, vacuum pump is with various methods a certain
Improve in enclosure space, the device of generation and maintenance vacuum.In the present solution, being then to extract setting for gas in the first vacuum pump 11
It is standby.The space that the two-position four-way solenoid valve 5 is connected to for changing the vacuum noz(zle) 12 of the first vacuum pump 11, correspondingly also changes
The space that first vacuum pump, 11 exhaust nozzle 13 is connected to, such as when needing the air in confined space being evacuated to outside confined space,
By two-position four-way solenoid valve 5, can will be connected in the vacuum noz(zle) 12 and confined space of the first vacuum pump 11, correspondingly by first
It is connected to outside the exhaust nozzle 13 of vacuum pump 11 and confined space；For another example needing the air outside confined space being evacuated in confined space
When, by two-position four-way solenoid valve 5, it can will be connected to outside the vacuum noz(zle) 12 of the first vacuum pump 11 and confined space, correspondingly will
It is connected in the exhaust nozzle 13 of first vacuum pump 11 and confined space.
In the particular embodiment, the two-position four-way solenoid valve 5 includes valve body, spool and driving mechanism, the valve body
Inside is valve chamber, and the spool includes push rod 6 and three push plates 7, and three fixations of push plate 7 are series at the shaft of push rod 6, spool
It is set in valve chamber, and three push plates 7 can be simultaneously with respect to valve chamber straight line back and forth movement.The driving mechanism connects with the transmission of push rod 6
It connects, is moved back and forth along valve chamber straight line for driving push rod 6, the controller 4 is connect with driving mechanism, the first vacuum pump 11, is used
It is started or stoped in control driving mechanism, the first vacuum pump 11.
The valve body is disposed with the first gas outlet 50, the first switching port 51, air inlet along the length direction of push rod 6
52, the second switching port 53 and the second gas outlet 54；First gas outlet, 50 and second gas outlet 54 with the first vacuum pump 11
Vacuum noz(zle) 12 connect, the air inlet 52 connect with the exhaust nozzle 13 of the first vacuum pump 11, first switching port 51 with it is close
Close space external environment connection, second switching port 53 and environmental communication in confined space.
The spool is movable to the first toggle bit or the second toggle bit under the driving of driving mechanism, and the spool is located at
When the first toggle bit, the first switching port 51 and the first gas outlet 50 are enclosed by push plate 7 in sealing space, and the second switching port 53 with
Air inlet 52 is enclosed by push plate 7 in another sealing space；When the spool switches on the second toggle bit, the first switching port 51 and into
Gas port 52 is enclosed by push plate 7 in sealing space, and the second switching port 53 and the second gas outlet 54 are enclosed by push plate 7 in another sealing sky
In.
Detect that oxygen density value is too low in confined space in oxygen sensor 2, when being not enough to breathe for biology, oxygen passes
Sensor 2 will be evacuated signal and be sent to controller 4, and controller 4 receives pumping signal, then controls the driving mechanism in extract system
It drives valve core movement to the first toggle bit, finally controls the startup of the first vacuum pump 11, the air outside confined space is pumped down to closed
In space.Referring to Fig. 1, in the process, the path of the air of above-mentioned extract system is：Air outside confined space is from
One switching port 51 is pumped into, and then air flow to the vacuum noz(zle) 12 of the first vacuum pump 11 from the first gas outlet 50, and then air is from suction
Gas nozzle 12 flow to exhaust nozzle 13, and then air flow to air inlet 52 from exhaust nozzle 13, and then air flow to second from air inlet 52
Switching port 53 is finally flow to from the second switching port 53 in confined space.When the present apparatus is set in vehicle, the anoxic in compartment
When, without by opening vehicle window come ventilating air so that oxygen content increases in compartment, avoids the property loss in compartment and people
The situation of body safety occurs, and ensure that vehicle safety.
Detect that smokescope value is excessively high in confined space in smoke detector, it is sufficient to show to have caught fire in confined space
When, smoke detector will be evacuated signal and be sent to controller 4, and controller 4 receives pumping signal, then controls in extract system
Driving mechanism drives valve core movement to the second toggle bit, finally controls the startup of the first vacuum pump 11, the air quilt in confined space
It is evacuated to outside confined space.Referring to Fig. 2, in the process, the path of the air of above-mentioned extract system is：In confined space
Air is pumped into from the second switching port 53, and then air flow to the vacuum noz(zle) 12 of the first vacuum pump 11 from the second gas outlet 54, then
Air flow to exhaust nozzle 13 from vacuum noz(zle) 12, and then air flow to air inlet 52 from exhaust nozzle 13, and then air is from air inlet 52
It is flow to the first switching port 51, is finally flow to outside confined space from the first switching port 51.Such fire-fighting mode will not be to confined air
Between pollute, and it is subsequent without cleaning.
The driving mechanism can be linear motor, electric putter, please refer to Fig.1 and Fig. 2, in a preferred embodiment, institute
It includes armature 8, electromagnet 9 and elastic component 10 to state driving mechanism, and the armature 8 is connect with push rod 6；The armature 8 connects with spool
Connect, the electromagnet 9 is oppositely arranged with armature 8, the armature 8 can under the promotion of electromagnet 9 with spool from being moved to
One toggle bit or the second toggle bit；The controller 4 is connect with electromagnet 9, startup or closing for controlling electromagnet 9；Institute
The both ends for stating elastic component 10 are connected respectively at spool, valve body, for closing rear-guard movable valve plug return in electromagnet 9.Such as, starting
When electromagnet 9, electromagnet 9 generates magnetic force, and under the attraction of magnetic force, armature 8 is close to electromagnet 9, and the push rod 6 is with armature 8
It is moved to the first toggle bit along the length direction of push rod 6, elastic component 10 stores elastic potential energy at this time；When closing electromagnet 9,
The magnetic force of electromagnet 9 disappears, and under the action of elastic potential energy, push rod 6 is moved to the second toggle bit.
In another embodiment, the extract system includes the second vacuum pump and third vacuum pump；Second vacuum pump
Vacuum noz(zle) 12 be connected to confined space external environment, the exhaust nozzle 13 of the second vacuum pump and environmental communication in confined space；It is described
The vacuum noz(zle) 12 of third vacuum pump and environmental communication in confined space, exhaust nozzle 13 and the confined space external environment of third vacuum pump
Connection；The controller 4 connect with the second vacuum pump, third vacuum pump, and for controlling the second vacuum pump, third vacuum pump opens
Dynamic or stopping.It can also realize that extract system takes out the gas outside confined space in confined space in this way, or by confined space
Interior gas is taken out in outside confined space, and detailed process is as follows：
Detect that oxygen density value is too low in confined space in oxygen sensor 2, when being not enough to breathe for biology, oxygen passes
Sensor 2 will be evacuated signal and be sent to controller 4, and controller 4 receives pumping signal, finally controls the second vacuum pump startup, closed
Air outside space is pumped down in confined space.
Detect that smokescope value is excessively high in confined space in smoke detector, it is sufficient to show to have caught fire in confined space
When, smoke detector will be evacuated signal and be sent to controller 4, and controller 4 receives pumping signal, finally controls third vacuum pump and opens
Dynamic, the air in confined space is pumped down to outside confined space.
Fig. 3 and Fig. 6 is please referred to, in another embodiment, the extract system includes the first air inlet pipe 14, the second air inlet pipe
15, the first escape pipe 16, the second escape pipe 17 and the 4th vacuum pump 18；The vacuum noz(zle) 12 of 4th vacuum pump 18 passes through first
Air inlet pipe 14, the second air inlet pipe 15 are connected to environment, confined space external environment in confined space respectively；4th vacuum pump 18
Exhaust nozzle 13 connected respectively with environment in confined space, confined space external environment by the first escape pipe 16, the second escape pipe 17
It is logical；First air inlet pipe 14, the second air inlet pipe 15, the first escape pipe 16, the second escape pipe 17 are respectively arranged with the first valve body
140, the second valve body 150, third valve body 160, the 4th valve body 170；The controller 4 and the first valve body 140, the second valve body 150,
Third valve body 160, the connection of the 4th valve body 170, for controlling the first valve body 140, the second valve body 150, third valve body the 160, the 4th
Valve body 170 is turned on and off.First valve body 140, the second valve body 150, third valve body 160, the 4th valve body 170 can be electricity
Moving valve, it is such setting so that the first valve body 140, the second valve body 150, third valve body 160, the 4th valve body 170 unlatching or
Closing can be controlled by controller 4.Such extract system can also realize that extract system takes out the gas outside confined space
It is taken out in outside confined space in confined space, or by the gas in confined space, detailed process is as follows：
Detect that oxygen density value is too low in confined space in oxygen sensor 2, when being not enough to breathe for biology, oxygen passes
Sensor 2 will be evacuated signal and be sent to controller 4, and controller 4 receives pumping signal, then controls the second valve body 150, third valve body
160 open, and the first valve body 140, the 4th valve body 170 are closed, and finally control the 4th vacuum pump 18 and start, the air outside confined space
It is evacuated to third escape pipe from the second air inlet pipe 15 by the 4th vacuum pump 18, the air outside confined space is pumped down to confined space
It is interior.
Detect that smokescope value is excessively high in confined space in smoke detector, it is sufficient to show to have caught fire in confined space
When, smoke detector is sent to controller 4 by signal is evacuated, and controller 4 receives pumping signal, then control the second valve body 150,
Third valve body 160 is closed, and the first valve body 140, the 4th valve body 170 are opened, and is finally controlled the 4th vacuum pump 18 and is started, confined space
Interior air is evacuated to the second escape pipe 17 by the 4th vacuum pump 18 from the first air inlet pipe 14, and the air outside confined space is pumped down to
In confined space.
In a further embodiment, further include signal processor 3, the signal processor 3 respectively with smoke alarm
1, oxygen sensor 2 and controller 4 connect, for smoke alarm 1, oxygen sensor 2 will to be acquired information and be converted into respectively
Electric signal, and send controller 4 to.
Referring to Fig. 4, in the particular embodiment, the method for the confined space fire prevention and anti-suffocation includes：
It initially enters step S401 and detects smokescope and oxygen concentration in confined space in real time；
Judge whether smokescope is more than or equal to the first preset value in confined space subsequently into step S402；
The gas in confined space is evacuated to outside confined space if so, finally entering step S403；
Judge whether oxygen concentration is less than or equal to the second preset value in confined space subsequently into step S404；
The gas outside confined space is evacuated in confined space if so, finally entering step S405.
Smokescope and oxygen concentration in step S401 can pass through smoke detector, the oxygen in above-mentioned apparatus respectively
Sensor 2 detects.
Step S402 judges whether smokescope judges close more than or equal to the first preset value and step S404 in confined space
It closes whether oxygen concentration in space is less than or equal to the second preset value, can be realized by the controller 4 in above-mentioned apparatus.
Gas in confined space is evacuated to outside confined space step S403 and step S405 is by the gas outside confined space
It is evacuated in confined space, can be realized by the extract system of above-mentioned apparatus.
When being more than or equal to 0.06% due to smokescope, then it can be shown that and caught fire, since oxygen concentration is less than or equal to 15%
When, then oxygen has been not enough to breathe for biology, and therefore, in a further embodiment, first preset value is 0.06%, institute
It is 15% to state the second preset value.
It should be noted that although the various embodiments described above have been described herein, it is not intended to limit
The scope of patent protection of the present invention.Therefore, based on the present invention innovative idea, to embodiment described herein carry out change and repair
Change, or using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it directly or indirectly will be with
Upper technical solution is used in other related technical areas, is included within the scope of patent protection of the present invention.
Claims (8)
1. a kind of device of confined space fire prevention and anti-suffocation, which is characterized in that including extract system, smoke alarm, oxygen
Sensor and controller；
The smoke alarm is for detecting smokescope in confined space；
The oxygen sensor is for detecting oxygen concentration in confined space；
The extract system is used to take out the gas outside confined space in confined space, or for by the gas in confined space
It takes out in outside confined space；
The controller is connect with smoke alarm, oxygen sensor and extract system respectively, for according to cigarette in confined space
Mistiness degree controls extract system and takes out the gas outside confined space in confined space, and for dense according to oxygen in confined space
Degree control extract system takes out the gas in confined space in outside confined space.
2. the device of confined space fire prevention and anti-suffocation according to claim 1, which is characterized in that the extract system packet
Two-position four-way solenoid valve and first vacuum pump are included, the two-position four-way solenoid valve includes valve body, spool and driving mechanism, institute
It is valve chamber to state valve inner；
The spool includes push rod and three push plates, and three push plates are series at the shaft of push rod, and three push plates are movably
It is set in valve chamber；
The driving mechanism and push rod are sequentially connected, and are moved along valve chamber for driving push rod, the controller and driving mechanism, the
One vacuum pump connects, and for controlling driving mechanism, the first vacuum pump starts or stops；
The valve body is disposed with the first gas outlet, the first switching port, air inlet, the second switching port along the length direction of push rod
And second gas outlet；First gas outlet and the second gas outlet are connect with the vacuum noz(zle) of the first vacuum pump, the air inlet
Connect with the exhaust nozzle of the first vacuum pump, first switching port is connected to confined space external environment, second switching port with
Environmental communication in confined space；
The spool is movable to the first toggle bit or the second toggle bit under the driving of driving mechanism, and the spool is located at first
When toggle bit, the first switching port and the first gas outlet are enclosed by push plate in sealing space, and the second switching port is pushed away with air inlet
Plate is enclosed in another sealing space；When the spool switches on the second toggle bit, the first switching port and air inlet by push plate enclose in
In sealing space, and the second switching port and the second gas outlet are enclosed by push plate in another sealing space.
3. the device of confined space fire prevention and anti-suffocation according to claim 2, which is characterized in that the driving mechanism packet
Armature, electromagnet and elastic component are included, the armature is connect with push rod；The armature is connect with spool, the electromagnet and armature
Be oppositely arranged, the armature can under the promotion of electromagnet with spool from being moved to the first toggle bit or the second toggle bit；Institute
It states controller to connect with electromagnet, startup or closing for controlling electromagnet；The both ends of the elastic component are respectively at spool, valve
Body connects, for closing rear-guard movable valve plug return in electromagnet.
4. the device of confined space fire prevention and anti-suffocation according to claim 1, which is characterized in that the extract system packet
Include the second vacuum pump and third vacuum pump；The vacuum noz(zle) of second vacuum pump is connected to confined space external environment, the second vacuum
Environmental communication in the exhaust nozzle and confined space of pump；Environmental communication in the vacuum noz(zle) and confined space of the third vacuum pump, the
The exhaust nozzle of three vacuum pumps is connected to confined space external environment；The controller is connect with the second vacuum pump, third vacuum pump, is used
In control the second vacuum pump, third vacuum pump starts or stops.
5. the device of confined space fire prevention and anti-suffocation according to claim 1, which is characterized in that the extract system packet
Include the first air inlet pipe, the second air inlet pipe, the first escape pipe, the second escape pipe and the 4th vacuum pump；
The vacuum noz(zle) of 4th vacuum pump by the first air inlet pipe, the second air inlet pipe respectively with environment in confined space, closed
Space external environment connection；The exhaust nozzle of 4th vacuum pump by the first escape pipe, the second escape pipe respectively with confined space
Interior environment, the connection of confined space external environment；
First air inlet pipe, the second air inlet pipe, the first escape pipe, the second escape pipe are respectively arranged with the first valve body, the second valve
Body, third valve body, the 4th valve body；The controller is connect with the first valve body, the second valve body, third valve body, the 4th valve body, is used for
The first valve body, the second valve body, third valve body, the 4th valve body is controlled to be turned on and off.
6. the device of confined space fire prevention and anti-suffocation according to claim 1, which is characterized in that further include signal processing
Device, the signal processor are connect with smoke alarm, oxygen sensor and controller respectively, for will respectively detect cigarette sense
Device, oxygen sensor acquisition information are converted into electric signal, and send controller to.
7. a kind of method of confined space fire prevention and anti-suffocation, which is characterized in that the method includes：
Smokescope and oxygen concentration in detection confined space in real time；
Judge whether smokescope is more than or equal to the first preset value in confined space；
If so, the gas in confined space is evacuated to outside confined space；
Judge whether oxygen concentration is less than or equal to the second preset value in confined space；
If so, the gas outside confined space is evacuated in confined space.
8. the method for confined space fire prevention and anti-suffocation according to claim 7, which is characterized in that first preset value
It is 0.06%, second preset value is 15%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810941223.6A CN108705984A (en) | 2018-08-17 | 2018-08-17 | A kind of device and method of confined space fire prevention and anti-suffocation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810941223.6A CN108705984A (en) | 2018-08-17 | 2018-08-17 | A kind of device and method of confined space fire prevention and anti-suffocation |
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| CN108705984A true CN108705984A (en) | 2018-10-26 |
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