CN115183362B - Power-assisted escape device in fire-fighting channel - Google Patents
Power-assisted escape device in fire-fighting channel Download PDFInfo
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- CN115183362B CN115183362B CN202210796149.XA CN202210796149A CN115183362B CN 115183362 B CN115183362 B CN 115183362B CN 202210796149 A CN202210796149 A CN 202210796149A CN 115183362 B CN115183362 B CN 115183362B
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- fire
- exhaust
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- smoke
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Classifications
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- 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
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- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
- F24F11/34—Responding to malfunctions or emergencies to fire, excessive heat or smoke by opening air passages
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- 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
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- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a power-assisted escape device in a fire-fighting channel, and belongs to the technical field of fire engineering. The power-assisted escape device in the fire-fighting channel comprises an exhaust fan, an exhaust pipe and an exhaust hole; the exhaust pipe is communicated with the exhaust fan, the exhaust pipe is fixedly arranged on the ceiling, and the part of the exhaust pipe with the exhaust capacity is made of elastic materials; a plurality of air suction holes are formed in one side, far away from the ceiling, of the air suction pipe, each air suction hole comprises an expansion piece, and each expansion piece has the capability of enabling the inner diameter of each air suction hole to be enlarged under the action of smoke dust generated by a fire disaster; the exhaust hole is connected with an auxiliary air extractor, and the auxiliary air extractor has the capability of judging the place where the fire disaster occurs and controlling the opening and closing of the exhaust hole. The fire-fighting smoke evacuation device can realize the purpose of timely finding fire and pointedly carrying out powerful and rapid smoke evacuation treatment on the fire-fighting area, and can prevent the spread of smoke dust from the source so as to ensure the escape environment of people in the fire-fighting channel.
Description
Technical Field
The invention belongs to the technical field of fire engineering, and particularly relates to a power-assisted escape device in a fire-fighting channel.
Background
According to fire statistics, the smoke dust is the most serious cause of death of people in building fire, the proportion of people dying from smoking is large, and the smoke dust is up to 80 percent, and among the people dying from fire, most people are dying from fire after being poisoned by smoke dust by inhalation. In order to quickly discharge smoke and dust when a fire disaster occurs, the speed of smoke diffusion is slowed down, the smoke and dust of a fire scene is controlled to quickly spread, the patent number CN201410338940.1 is a fire disaster automatic smoke exhaust device for a large-space building, the intensity of air exhaust is increased by arranging a retractable cloth curtain tube at the lower end of an air exhaust port, and the smoke and dust can be effectively exhausted under the condition that the smoke and dust rises to a certain height. However, the automatic smoke exhaust device for the fire disaster of the large-space building has no pertinence to smoke dust extraction, and when the fire disaster occurs, all exhaust fans are required to be started to ensure that the indoor smoke dust can be effectively exhausted, so that the energy consumption is increased during use; the cloth curtain cylinder is limited in covering volume, and if the arrangement quantity is not large, the smoke discharging efficiency is not high and the smoke discharging is not thorough; the need to thoroughly remove most of the smoke in the room requires the provision of a number of automatic smoke evacuation devices, which can result in increased costs of the arrangement.
Disclosure of Invention
The invention aims to solve the technical problem of providing the power-assisted escape device in the fire-fighting channel, which can realize timely finding of fire and targeted powerful and rapid smoke discharge treatment on the fire-occurring area, prevent the spreading of smoke dust from the source so as to ensure the escape environment of people in the fire-fighting channel, and the device can perform indoor air suction treatment by connecting with one air suction fan through the pipeline.
The invention relates to a power-assisted escape device in a fire-fighting channel, which comprises an exhaust fan, an exhaust pipe and an exhaust hole;
the exhaust fan is arranged on the ceiling and has the capacity of communicating indoor with outdoor;
the exhaust tube is communicated with the exhaust fan, and is fixedly arranged on the ceiling, and the material of the part of the exhaust tube with the air suction capacity is an elastic material, so that the exhaust tube can be spread by the supporting force;
a plurality of air suction holes are formed in one side, far away from the ceiling, of the air suction pipe, each air suction hole comprises an expansion piece, and each expansion piece has the capacity of enabling the inner diameter of each air suction hole to be enlarged after sensing fire; the exhaust hole is connected with an auxiliary air extractor, the auxiliary air extractor has the capacity of judging the place where the fire disaster occurs through the detection of the environment, and the auxiliary air extractor is connected with the exhaust hole to control the opening and closing of the exhaust hole.
As a further improvement of the invention, the expansion piece has the capability of expanding with heat and contracting with cold, so that the expansion piece has the capability of enlarging the exhaust hole under the action of high temperature carried by smoke dust generated by fire.
As a further improvement of the invention, the expanding piece comprises two U-shaped magnets, the two U-shaped magnets are symmetrically arranged, so that the two U-shaped magnets are enclosed into a circular ring shape, and the corresponding parts of the two U-shaped magnets are heteropolar, namely the N pole of one U-shaped magnet corresponds to the S pole of the other U-shaped magnet; a spring is fixedly arranged between two poles of the two U-shaped magnets, so that the spring is contracted to generate elastic restoring force after receiving extrusion force of the U-shaped magnets at two ends, and the spring has the capability of outwards expanding the U-shaped magnets at two sides after the U-shaped magnets are heated and weakened in magnetism.
As a further improvement of the invention, the expansion element comprises a memory alloy which is arranged between two poles of the two U-shaped magnets which are attracted mutually, the memory alloy has the capacity of receiving high Wen Shenzhi and receiving low-temperature contraction, and the deformation temperature threshold of the memory alloy is the high temperature received when a fire disaster occurs.
As a further improvement of the invention, the auxiliary air extracting device comprises flaps and motors, and the number of the flaps is consistent with that of the air extracting holes; the valves are arranged on the upper sides of the air suction holes, the size of each valve is larger than that of the air suction hole, each valve is in sliding connection with the inner wall of the air suction pipe, and the sliding of each valve has the capacity of controlling the opening and closing of the air suction holes; the output end of the motor is fixedly connected with the valve through a connecting rod, and the motor controls the sliding of the valve so that the motor has the capability of indirectly controlling the opening and closing of the air suction hole.
As a further improvement of the invention, the auxiliary air extracting device comprises a total signal center and a fire monitor, wherein the fire monitor is in signal connection with the total signal center so as to send a smoke exhaust signal to the total signal center when the fire monitor detects the occurrence of a fire; the total signal center is connected with the motor through signals, so that the motor is controlled to control the opening and closing of the air suction hole after the total signal center receives the smoke exhaust signal.
As a further improvement of the invention, the fire monitor comprises a smoke concentration detector, wherein the smoke concentration detector is in a continuous working state, and the smoke concentration detector has the capability of sending a smoke discharge signal to the total signal center after detecting that the smoke concentration reaches a threshold value, and the threshold value is the smoke concentration which cannot be breathed normally by a human body.
As a further improvement of the invention, the fire monitor comprises a visibility detector which is in a continuous working state, and the visibility detector has the capability of sending a smoke discharge signal to the total signal center after detecting that the visibility is lower than a threshold value, wherein the threshold value is a numerical value of a normal visible object of a human body.
As a further improvement of the invention, the fire monitor comprises a temperature detector which is in continuous operation and which has the ability to detect rapid increases in temperature and to send a smoke evacuation signal to the total signal centre.
Compared with the prior art, the invention has the beneficial effects that: the utility model provides a helping hand escape device in fire control passageway, it can realize in time finding the conflagration and pertinently carry out powerful and quick smoke extraction to the region that takes place the conflagration, thereby prevent spreading of smoke and dust from the source and guarantee the escape environment of crowd in the fire control passageway, and the device is through the pipeline convulsions, only need connect an air exhauster and can carry out the convulsions to indoor, the cost of arranging is low;
the exhaust hole has the capability of increasing the inner diameter after being subjected to high temperature of fire, so that the exhaust hole can be increased when the fire occurs, the air inlet amount of the exhaust hole is increased at the moment, and the exhaust efficiency of the exhaust fan on the exhaust hole is improved, so that smoke dust can be effectively discharged even if the fire monitor fails or the fire is not detected yet;
after the fire disaster monitor detects the place where the fire disaster happens, the total signal center can keep the vent holes of the place where the fire disaster happens open and control the vent holes in other areas to be closed, so that the place where the fire disaster happens can be subjected to smoke discharging treatment in a targeted manner, the smoke dust discharging speed of the place where the fire disaster happens can be increased, and a large amount of smoke dust generated by the fire disaster can be prevented from spreading to places such as a fire-fighting channel to prevent people from escaping;
the fire monitor can continuously monitor smoke dust in the fire-fighting channel, and once the smoke dust concentration in the fire-fighting channel can influence people to escape, the total signal center can control the ventilation holes in the fire-fighting channel to be opened and control the ventilation holes in other areas to be closed, so that the escape environment in the fire-fighting channel is ensured, and the people can escape safely through the fire-fighting channel.
Drawings
FIG. 1 is an isometric view of a power assisted escape apparatus in a fire passageway according to the present invention;
FIG. 2 is a schematic view of the structure of the present invention, as viewed from the vent side;
FIG. 3 is a schematic view of the structure of the vent spring of the present invention when compressed by magnetic force;
FIG. 4 is a schematic view of the structure of the vent hole of the present invention with the magnetic properties of the springs weakened;
fig. 5 is a schematic diagram of signal connection according to a first embodiment of the present invention.
The reference numerals in the figures illustrate:
1 exhaust fan, 2 exhaust pipes, 3 exhaust holes, 31U-shaped magnets and 32 springs.
Detailed Description
First embodiment: referring to fig. 1-4, an internal power-assisted escape device for a fire-fighting channel comprises an exhaust fan 1 and an exhaust pipe 2.
The exhaust fan 1 is fixedly arranged on a ceiling in a building, one side of the exhaust fan 1 is exposed on a roof or a wall of the building, the other side of the exhaust fan 1 is communicated with the room, and when the exhaust fan 1 works, the exhaust fan 1 has the capability of moving nearby air towards the direction of the exhaust fan 1, so that when the exhaust fan 1 works, the air nearby the exhaust fan 1 is discharged to the outside through the exhaust fan 1.
The exhaust tube 2 is fixedly arranged on an indoor ceiling, and the exhaust tube 2 is communicated with the exhaust fan 1, so that when the exhaust fan 1 works, air in the exhaust tube 2 is pumped away, and the air in the exhaust tube 2 is discharged outdoors through the exhaust fan 1; the part of the exhaust pipe 2 with the air suction capacity is made of elastic materials, so that the part of the exhaust pipe 2 with the air suction capacity can be expanded after being supported by the supporting force, the air suction speed of the exhaust pipe 2 is increased, and the air suction capacity is enhanced; because the exhaust pipes 2 are arranged on the ceiling, the exhaust pipes 2 penetrate through the wall on the upper side of the room and are distributed in each room, each room is a single area, the fire-fighting channel of each layer is also a single area, and the exhaust pipes 2 in each area have the capability of pumping air away for the area.
A plurality of air exhaust holes 3 are formed in one side, far away from a ceiling, of the exhaust pipe 2 in each area, the air exhaust holes 3 are used for communicating indoor air with air in the exhaust pipe 2, so that indoor air can enter the exhaust pipe 2 through the air exhaust holes 3, and when the air conditioner works, indoor air enters the exhaust pipe 2 through the air exhaust holes 3 and finally is discharged out of the room through the exhaust fan 1;
the air suction hole 3 is a through hole formed by surrounding a rigid material, so that the outer wall of the air suction hole 3 has supporting force on the peripheral part of the air suction hole 3; the air suction hole 3 is a circular ring structure formed by symmetrically arranging two U-shaped magnets 31 in a surrounding manner; the corresponding parts of the two U-shaped magnets 31 are heteropoles, namely the N pole of one U-shaped magnet 31 corresponds to the S pole of the other U-shaped magnet 31, so that attractive force exists between the two U-shaped magnets 31; the two U-shaped magnets 31 are symmetrically arranged so that the two U-shaped magnets 31 are surrounded into a circular ring shape;
a spring 32 is fixedly arranged between two poles of the two U-shaped magnets 31, one end of the spring 32 is connected with the N level of the U-shaped magnets 31, the other end of the spring 32 is connected with the S level of the U-shaped magnets 31, so that the spring 32 is contracted after receiving extrusion force generated by the mutual attraction of the U-shaped magnets 31 at the two ends, and when the U-shaped magnets at the two sides of the spring 32 receive high temperature and other factors to reduce magnetism, the elastic restoring force of the spring 32 acts on the U-shaped magnets 31 at the two sides so as to enable the U-shaped magnets 31 to move in a direction away from the spring 32 respectively; the number of the springs 32 in each air suction hole 3 is two;
a memory alloy is fixedly arranged between two poles of the two U-shaped magnets, wherein the N level of the U-shaped magnet 31 at one end of the memory alloy is connected, and the S level of the U-shaped magnet 31 at the other end of the memory alloy is connected; the deformation temperature threshold of the memory alloy is the high temperature received when the fire disaster happens; therefore, when the memory alloy is affected by high temperature in fire, the memory alloy straightens and supports the U-shaped magnet to separate; after the room temperature is restored after the fire disaster is over, the memory alloy is folded, so that the attraction between the U-shaped magnets is not influenced; the number of the memory alloy in each suction hole 3 is two.
Each exhaust hole 3 is provided with a valve; the valve is made of rigid materials and is in the shape of a small disc; the size of each valve is larger than that of the exhaust hole 3, each valve is in sliding connection with the inner wall of the exhaust pipe 2, and when the valve slides to be positioned above the exhaust hole 3, the valve seals the exhaust hole 3; when the valve slides to a position far away from the air exhaust hole 3, the air exhaust hole 3 is opened; the sliding of the valve has the capacity of controlling the opening and closing of the air suction hole 3;
a motor is fixedly arranged in each area, the motor is fixedly connected with a cross rod, and the motor controls the cross rod to move in a direction approaching or separating from the motor in the horizontal direction; the cross rod is fixedly connected with a plurality of connecting rods, and the connecting rods are controlled by the cross rod and move in the same direction with the cross rod; one end of each connecting rod, which is far away from the cross rod, is fixedly connected with one valve, the displacement of the cross rod drives the valve to slide, and the displacement direction of the cross rod is in the same direction as the sliding direction of the valve; when the motor is in operation, the motor controls the connecting rod to move so as to indirectly control the valve to close or open the air suction hole 3, so that the motor has the capability of indirectly controlling the air suction hole 3 to be opened and closed; each motor is in signal connection with the total signal center, so that the total signal center receives the smoke exhaust signal and then controls the motor to work to control the opening of the air exhaust hole 3;
it should be noted that, the operation of the motor is controlled by the motor cross bar, the valve is driven to slide by the connecting rod, the valve is connected with the inner wall of the exhaust pipe (2) in a sliding manner, and the total signal center is the prior art, so that the description is omitted herein;
a smoke concentration detector is fixedly arranged in each region, and is in a continuous working state to monitor the indoor smoke concentration; the smoke concentration detector is in signal connection with the total signal center, when the smoke concentration detector detects that the smoke concentration in the area reaches a threshold value, the smoke concentration detector sends a smoke discharging signal to the total signal center, the total signal center controls a motor in the area to open a valve so as to open an exhaust hole 3, and if the exhaust hole 3 is in an open state at the moment, the motor controls the exhaust hole 3 to keep in an open state; the threshold value is the smoke dust concentration of the human body incapable of breathing and observing objects normally.
Working principle: when a fire occurs, the temperature of the fire area is rapidly increased, at the moment, the magnetism of the U-shaped magnet 31 in the air suction hole 3 in the area is weakened due to the influence of high temperature, at the moment, the elastic reset force of the spring 32 acts on the U-shaped magnets 31 at two sides to enable the U-shaped magnets 31 to be respectively expanded to two sides, so that the air suction hole 3 in the area is enlarged, at the moment, the air quantity which can enter the air suction pipe 2 through the air suction hole 3 is increased, and a large amount of smoke dust generated by the fire is sucked outdoors by the air suction pipe 1 through the air suction pipe 2; the smoke detector in the area is triggered to alarm by a large amount of smoke generated during fire disaster, and the smoke detector sends smoke to the total signal center to control the motors in the area to keep the air suction holes 3 open, and the total signal center controls the motors in the other areas to work to control the valves in the other areas to rotate so as to control the air suction holes 3 in the other areas to be closed; at this time, the total amount of air to be pumped away by the exhaust fan 1 is not reduced, and all the air pumped away by the exhaust fan 2 comes from the exhaust holes 3 in the fire area, so that the speed of the exhaust fan 2 for pumping away the air in the fire area is faster and stronger, and the smoke dust in the fire area is more thoroughly and rapidly pumped away to the outside along with the air, thereby avoiding the situation that the smoke dust generated in the fire area spreads to other areas to influence people to escape or suffocate people and the like after the fire occurs.
If the power-assisted escape device in the fire-fighting channel cannot catch up the speed of smoke spreading in the fire-fighting channel for the smoke discharging speed in the fire-fighting area, so that the smoke spreading in the fire-fighting channel is caused, and at the moment, when the smoke detector in the fire-fighting channel detects that the smoke concentration in the fire-fighting channel is higher than a threshold value, the smoke detector sends a smoke discharging signal to the center of a total signal so as to control a motor in the fire-fighting channel to keep an air suction hole 3 open, and control motors in other areas to work so as to close the air suction holes 3 in other areas; at the moment, the exhaust fan 1 independently pumps air in the fire-fighting channel through the exhaust pipe 2 and the exhaust hole 3 in the fire-fighting channel, so that smoke dust in the fire-fighting channel can be pumped outdoors; the spreading smoke dust has high temperature, and when the smoke dust contacts with the air suction hole 3, the high temperature weakens the magnetism of the U-shaped magnet 31 in the air suction hole 3, so that the elastic restoring force of the spring 32 acts on the U-shaped magnets 31 at two sides to expand the U-shaped magnets 31 towards two sides respectively, the air suction hole 3 is enlarged, and the air quantity entering from the air vent 3 is enlarged; and because the total amount of the air to be pumped away by the exhaust fan 1 is not reduced at this moment, the air to be pumped away in the exhaust fan 2 is all from the air pumping holes 3 in the fire-fighting channel, so the air pumping speed of the exhaust fan 1 in the fire-fighting channel is accelerated, the strength is increased, the smoke dust in the fire-fighting channel is more thoroughly and rapidly pumped away to the outside, the situation that the smoke dust spreading from the fire occurrence part is filled with the vision of people when the people escape is blocked in the fire-fighting channel or the breathing of people when the people escape is influenced is avoided, and the people can escape safely is ensured.
It should be noted that, the priority of the smoke signal generated in the fire-fighting channel is greater than that of the smoke signal generated in other areas, namely, when the smoke concentration detector detects that smoke is required in two areas including the fire-fighting channel, the total signal center preferentially processes the smoke signal in the fire-fighting channel, so that the air exhaust holes 3 in the fire-fighting channel are kept open and the air exhaust holes 3 in other areas are controlled to be closed, and the crowd can escape safely in the fire-fighting channel.
Specific embodiment II: different from the specific embodiment, the power-assisted escape device in the fire-fighting channel detects whether a fire disaster occurs or not through a visibility detector, and the visibility detector is in a continuous working state and monitors indoor visibility; the visibility detector is in signal connection with the total signal center, when a large amount of smoke dust is generated in a fire disaster, the smoke dust diffusely shields the sight, the visibility detector detects that the visibility is lower than a threshold value, the threshold value is a numerical value of a normal visible object of a human body, and the visibility detector sends a smoke exhaust signal to the total signal center.
Third embodiment: different from the first embodiment and the second embodiment, the power-assisted escape device in the fire-fighting channel detects whether fire disaster occurs or not through a temperature detector, and the temperature detector is in a continuous working state and monitors the indoor temperature; the temperature detector is in signal connection with the total signal center, when a fire disaster occurs, the indoor temperature rises rapidly, the high temperature causes the temperature detector to alarm, and the temperature detector sends a smoke exhaust signal to the total signal center.
Claims (6)
1. The utility model provides a helping hand escape device in fire control passageway which characterized in that: comprises an exhaust fan (1), an exhaust pipe (2) and an exhaust hole (3);
the exhaust fan (1) is arranged on the ceiling and has the capacity of communicating indoor with outdoor;
the exhaust tube (2) is communicated with the exhaust fan (1), the exhaust tube (2) is fixedly arranged on a ceiling, and the material of the part of the exhaust tube (2) with the exhaust capacity is an elastic material, so that the exhaust tube can be spread by the supporting force;
a plurality of air suction holes (3) are formed in one side, far away from the ceiling, of the air suction pipe (2), the air suction holes (3) comprise expansion pieces, and the expansion pieces have the capacity of enabling the inner diameter of the air suction holes (3) to be enlarged after sensing fire disaster; the auxiliary air extraction device is connected with the air extraction hole (3) and has the capability of judging the place where the fire disaster occurs through the detection of the environment, and the auxiliary air extraction device is connected with the air extraction hole (3) to control the opening and closing of the air extraction hole (3);
the expansion piece has the capability of expanding with heat and contracting with cold, so that the expansion piece has the capability of enlarging the air suction hole (3) under the action of high temperature carried by smoke dust generated by a fire disaster;
the expanding piece comprises two U-shaped magnets (31), the two U-shaped magnets (31) are symmetrically arranged, so that the two U-shaped magnets (31) are surrounded into a circular shape, and the corresponding parts of the two U-shaped magnets (31) are heteropolar, namely the N pole of one U-shaped magnet (31) corresponds to the S pole of the other U-shaped magnet (31); a spring (32) is fixedly arranged between two poles of the two U-shaped magnets (31) which are attracted mutually, so that the spring (32) is contracted to generate elastic restoring force after receiving the extrusion force of the U-shaped magnets (31) at two ends, and the spring (32) has the capability of outwards expanding the U-shaped magnets (31) at two sides after the U-shaped magnets (31) are weakened in heat magnetism;
the expansion piece comprises a memory alloy which is arranged between two poles of the two U-shaped magnets (31) which are attracted mutually, the memory alloy has the capacity of receiving high Wen Shenzhi and receiving low-temperature contraction, and the deformation temperature threshold of the memory alloy is the high temperature received when a fire disaster occurs.
2. The power assisted escape device in a fire passage according to claim 1, wherein: the auxiliary air extraction device comprises flaps and motors, and the number of the flaps is consistent with that of the air extraction holes (3); the valves are arranged on the upper sides of the air suction holes (3), the size of each valve is larger than that of each air suction hole (3), each valve is in sliding connection with the inner wall of the air suction tube (2), and the sliding of each valve has the capacity of controlling the opening and closing of the air suction holes (3); the output end of the motor is fixedly connected with the valve through a connecting rod, and the motor controls the sliding of the valve so that the motor has the capability of indirectly controlling the opening and closing of the air suction hole (3).
3. The power assisted escape apparatus in a fire passage according to claim 2, wherein: the auxiliary air exhaust device comprises a total signal center and a fire monitor, wherein the fire monitor is in signal connection with the total signal center so as to send a smoke exhaust signal to the total signal center when the fire monitor detects the occurrence of a fire; the total signal center is connected with the motor through signals, so that the motor is controlled to control the opening and closing of the air suction hole (3) after the total signal center receives the smoke exhaust signals.
4. A fire passage internal power assisted escape apparatus according to claim 3 and wherein: the fire monitor comprises a smoke concentration detector, the smoke concentration detector is in a continuous working state, the smoke concentration detector has the capability of sending smoke exhaust signals to a total signal center after detecting that the smoke concentration reaches a threshold value, and the threshold value is the smoke concentration which cannot be breathed normally by a human body.
5. A fire passage internal power assisted escape apparatus according to claim 3 and wherein: the fire monitor comprises a visibility detector, the visibility detector is in a continuous working state, the visibility detector has the capability of sending smoke exhaust signals to a total signal center after detecting that the visibility is lower than a threshold value, and the threshold value is a numerical value of a normal visible object of a human body.
6. A fire passage internal power assisted escape apparatus according to claim 3 and wherein: the fire monitor comprises a temperature detector which is in a continuous working state and has the capability of detecting rapid temperature rise and sending smoke exhaust signals to a total signal center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210796149.XA CN115183362B (en) | 2022-07-07 | 2022-07-07 | Power-assisted escape device in fire-fighting channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210796149.XA CN115183362B (en) | 2022-07-07 | 2022-07-07 | Power-assisted escape device in fire-fighting channel |
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| CN115183362A CN115183362A (en) | 2022-10-14 |
| CN115183362B true CN115183362B (en) | 2023-08-11 |
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| CN202210796149.XA Active CN115183362B (en) | 2022-07-07 | 2022-07-07 | Power-assisted escape device in fire-fighting channel |
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