CN105374154B - With or without the point-type active smoke detector and sampling system of air collecting pipe - Google Patents
With or without the point-type active smoke detector and sampling system of air collecting pipe Download PDFInfo
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- CN105374154B CN105374154B CN201510894317.9A CN201510894317A CN105374154B CN 105374154 B CN105374154 B CN 105374154B CN 201510894317 A CN201510894317 A CN 201510894317A CN 105374154 B CN105374154 B CN 105374154B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
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- Business, Economics & Management (AREA)
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- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
A kind of point-type active smoke detector and sampling system with or without air collecting pipe.Detector includes master control borad, monitoring chamber, the sensor and extractor fan that are made up of photoemission cell and reception pipe, monitoring chamber is provided with gas import and export, the gas feed on chamber is monitored directly to gas vent, and through the air-flow of monitoring intracavitary by two beam crosses regions photoemission cell and reception pipe.Point-type active smoke detector, the point-type active smoke detector with air collecting pipe and sampling system provided by the invention can all shorten the alert detecting time of detection, and photoemission cell, reception pipe can flexibly be set；And conventional air sampling system cost can be reduced.
Description
Technical field
The invention belongs to fire-fighting equipment technical field, actively feels cigarette with or without the point-type of air collecting pipe more particularly to a kind of
Detector and sampling system.
Background technology
In fire protection sector, the operation principle of currently used smoke point detector is when soot dust granule diffuses to its prison
Intracavitary is surveyed, after causing scattering so as to the infrared light sent to the infraluminescence pipe for monitoring intracavitary, infrared receiving tube receives infrared
Light, then master control borad (or signal processing unit) by analysis judge and output alarm signal.Because this detector is
When soot dust granule is diffused to monitoring intracavitary by the convection current of air, therefore producing smog from fire early period of origination and need certain
Between can just diffuse to monitoring intracavitary, so timely monitoring, alarming can not be carried out to fire；In addition, normally monitor situation in detector
Under do not only have dust over time and be present in monitoring intracavitary, and soot dust granule can also spread and reside in monitoring chamber when fire occurs
It is interior, so as to greatly have impact on detector sensitivity and real-time.
A kind of active inspiration formula spot-type photoelectric smoke detection is disclosed in Chinese invention patent the 201310006786.3rd
Device, as shown in figure 1, it includes aspiration pump 27, monitoring chamber 23, filter layer 2 and signal processing unit 5 with optics labyrinth；Monitoring
Infraluminescence pipe and reception pipe 4 are provided with chamber 23；Filter layer 2 with optics labyrinth is arranged on the air inlet and outlet of monitoring chamber 23
Mouthful；Aspiration pump 27 is located at the outside of the monitoring gas outlet filter layer 2 of chamber 23, and it monitors the air-flow in chamber 23 by outside exhausting
Accelerate, gas channel is：Detector bottom surrounding side-air inlet filter layer 2- monitoring chamber 23- gas outlet filter layer 2- pumpings
At the top of pump 27- detectors；The shortcomings that this detector is that rate of false alarm is higher, its should take the filter layer 2 with optics labyrinth with
Avoid ambient from entering in monitoring chamber 23, also to prevent the entrance of small worm and bulky grain thing；The air-flow of this deflecting simultaneously leads to
Road has to pass through the infraluminescence pipe set in monitoring chamber 23 and two optical axis intersection points of reception pipe 4, and during generation fire, cigarette
Mist must rise from space and diffuse to the ceiling i.e. bottom of detector, could finally enter from air inlet filter layer 2 and monitor
In chamber 23.
A kind of false alarm prevention fire smoke detector, such as Fig. 2 are disclosed in Chinese utility model patent the 98241806.Xth
Shown, it mainly includes smoke detector 3, inlet air filtration room 1, air inlet pipe 12, electromagnetic pump 7, steam vent 9, is located at smoke detection
The gas-tight silo 11 and power supply of the outside of device 3, inlet air filtration room 1 and electromagnetic pump 7 are provided with the air inlet position of smoke detector 3 and is connected
The air inlet pipe 12 being connected between filter chamber 1 and electromagnetic pump 7, the row with air baffle is provided with the outlet position of smoke detector 3
Stomata 9.In order to prevent electromagnetic pump 7 that ambient outside air is sent into smoke detector without filter chamber 1 due to poorly sealed
3, gas-tight silo 11 must be made in the outside of the induction part of smoke detector 3, electromagnetism pump portion and its connection control alarm portion
One seal casinghousing, and in order to prevent from smoke detector 3 discharge gas backstreaming, it is necessary to smoke detector 3 air inlet with
Between exhaust plus dividing plate separates.In addition, in order to ensure air-flow by having during the air inlet pipe 12 of filter chamber 1 and its certain length
Certain pressure, it is necessary to using the very low electromagnetic pump 7 of flow very little, efficiency, even if the powder that so can only also filter out more than 10 μm
Dirt particle.In addition, the sealing that this detector in order to ensure normal operation, does not require nothing more than gas-tight silo 11 is high, and detector
Complicated integral structure, cost are high.
The content of the invention
It is of the invention in order to solve above-mentioned point-type active smoke detector actual design installation complexity and require strict problem
Purpose is to provide a kind of is not adopted by what installation site was limited with or without the point-type active smoke detector and air of air collecting pipe
Sample system.
In order to achieve the above object, point-type active smoke detector provided by the invention mainly include master control borad, monitoring chamber,
It is arranged on the sensor for monitoring intracavitary and being made up of photoemission cell and reception pipe and is connected and will can visit with monitoring chamber
The air surveyed in region is pumped into the extractor fan of monitoring intracavitary, and monitors chamber and be provided with gas import and export；Described monitoring chamber
On gas feed directly to gas vent, and through monitoring intracavitary air-flow pass through described photoemission cell and reception pipe it
Between two beam crosses regions.
Described photoemission cell and reception pipe is respectively infrared light emission pipe and reception pipe, or respectively feux rouges, indigo plant
The LASER Discharge Tube and reception pipe of light or green glow.
The angle between two beam center axis between described photoemission cell and reception pipe be more than 0 degree, it is and small
In 180 degree.
The described two beam center axles through the air-flow of monitoring intracavitary and described photoemission cell and reception pipe
Plane where line is perpendicular or parallel.
Described point-type active smoke detector also includes gas sensor or/and temperature sensor.
Described gas sensor is carbon monoxide, sulfur dioxide, carbon dioxide, ammonia, hydrogen sulfide or oxynitrides gas
Body sensor.
Described extractor fan is provided in the aspiration pump of gas feed or gas outlet on the monitoring chamber, either
Air draft passage.
Described aspiration pump is the Minitype centrifugal or axial flow blower or minipump aspiration pump of variable-ratio.
Described point-type active smoke detector also includes being arranged on the filter element on the monitoring room at gas feed.
Filter layer uses air filter paper or polypropylene non-woven cloth material in described filter element.
Described point-type active smoke detector also includes the wind being provided through in the gas circuit that monitoring intracavitary air-flow passes through
Fast sensor.
Described air velocity transducer selects RTD, germanium thermistor or ultrasonic wind speed sensor.
The present invention provides point-type active smoke detector master of the point-type active smoke detector with air collecting pipe with air collecting pipe
To include monitoring chamber, the photoelectric sensor and master control borad that are made up of photoemission cell and reception pipe with gas import and export；Its
Middle master control borad and photoelectric sensor are arranged at monitoring intracavitary, and pass through photoelectricity from the air-flow of gas feed suction monitoring intracavitary
Two beam intersection regions on sensor between photoemission cell and reception pipe, master control borad are electrically connected with photoelectric sensor, are used for
Detection sensor electrical parameter changes and is judged and export failure or fire alarm signal；Set in the gas outlet of monitoring chamber
There is air extractor；The described point-type active smoke detector with air collecting pipe also include with monitor chamber gas feed be connected and
Gas production pipe with gas production point or hole.
The gas production pipe is an air collecting pipe or a gas production pipe network.
Described photoelectric sensor is the infrared sensor being made up of infrared emission tube and reception pipe, or by feux rouges, indigo plant
The laser sensor of light or the LASER Discharge Tube and reception pipe of green-light source composition, or above-mentioned infrared sensor or laser sensor
With the combination of at least one of gas sensor, temperature sensor.
The sampling system of point-type active smoke detector provided by the invention with air collecting pipe mainly includes at least one
Root sampling pipe, cabinet, pumping bellows and pumping blower fan in it, air collecting pipe, by laser sensor and laser monitoring chamber
Laser sensing unit, system operation unit and the display unit of composition；Wherein it is evacuated bellows and laser sensing unit is arranged on machine
In case；One end of sampling pipe is connected on the air inlet of pumping bellows after running through cabinet, is evacuated the side exhaust outlet of bellows by adopting
Tracheae is connected with the gas feed of laser sensing unit；System operatio control unit and display unit are arranged on cabinet；It is described
Laser sensing unit can by described point-type active smoke detector be provided with gas import and export monitoring chamber and be arranged on
Photoelectric sensing unit that monitoring intracavitary and the photoelectric sensor that is made up of photoemission cell and reception pipe are formed replaces, and supervises
The gas feed for surveying chamber is connected on air collecting pipe.
The gas outlet of described monitoring chamber is provided with aspiration pump.
The sampling system that the present invention provides the point-type active smoke detector with air collecting pipe mainly includes cabinet, at least
One group of point-type active smoke detector, centralized operation control unit and display unit with air collecting pipe；Wherein point-type actively feels cigarette
Detector includes the monitoring chamber with gas import and export, the photoelectric sensor being made up of photoemission cell and reception pipe, master control
Plate, air collecting pipe；Wherein photoelectric sensor is arranged on monitoring intracavitary, and passes through light from the air-flow of gas feed suction monitoring intracavitary
Two beam intersection regions on electric transducer between photoemission cell and reception pipe, master control borad electrically connect with photoelectric sensor；Adopt
One end of tracheae is connected in the gas feed of monitoring chamber after running through cabinet；Centralized operation control unit and display unit are arranged on
On cabinet；The gas outlet of described monitoring chamber is provided with aspiration pump.
Described is arranged on the gas for monitoring chamber in the sampling system at least one set of point-type active smoke detector
The aspiration pump of body outlet can be replaced by a total air extractor, and each gas vent monitored on chamber is connected to total air extractor
On total exhaust pipe.
Point-type active smoke detector provided by the invention can be directly from gas feed on monitoring chamber by search coverage
Gas be pumped into monitoring intracavitary, so can not only shorten alert detecting time of detection, while smog or dust granule
It is difficult to reside on monitoring cavity wall, there is effect free of cleaning, and photoemission cell, reception pipe can flexibly be set, and nothing
Need to ask it to must be perpendicular to detector chassis；In addition, the filter layer being arranged on monitoring chamber at gas feed can not only be very
Easily solve the problems, such as that detector is reported by mistake in the big environment of dust, and reduce shadow of the ambient light to sensor in monitoring chamber
Ring；Especially increased air velocity transducer can be chronically at dust blockage problem in high dust environment to detector and supervise
Survey, and filter element can be sent and change prompting message, it may be mounted on pumping air channel or its branch pipe and is detected as flue
Device uses, and can also independently be used as point-type active smoke detector by the way of aspiration pump is set.
Point-type active smoke detector provided by the invention with air collecting pipe is the monitoring in point-type active smoke detector
Air collecting pipe is installed at chamber gas feed, so monitors the optional position installation that chamber just can be at the scene, need to by different length or
Air collecting pipe of different shapes is laid according to live building structure situation, as long as the gas production hole set location on air collecting pipe can
Meet detection requirement, this makes it possible to the complexity of detector when greatly reducing engineering design, and scene is pacified
Adjustment integral point type active smoke detector and its air collecting pipe and gas production hole set location are very convenient.In addition, no matter use band gas production
The sampling system of photoelectric sensing unit in the point-type active smoke detector of pipe, or the point-type master by multi-group air collecting pipe
The sampling system of dynamic smoke detector composition, the cost of conventional air sampling system can be substantially reduced.
Brief description of the drawings
Fig. 1 is a kind of active inspiration type point type photoelectric smoke detector structural representation of prior art.
Fig. 2 is a kind of false alarm prevention fire smoke detector structural representation of prior art.
Fig. 3 is the point-type active smoke detector of the offer of the embodiment of the present invention 1 in suction airflow and transmitting tube and reception pipe
Two beam center axis where plane it is perpendicular when structure forward direction sectional view.
Fig. 4 is the point-type active smoke detector transverse sectional view shown in Fig. 3.
Fig. 5 is the point-type active smoke detector of the offer of the embodiment of the present invention 2 in suction airflow and transmitting tube and reception pipe
Two beam center axis where plane parallel when structure forward direction sectional view.
Fig. 6 is the point-type active smoke detector transverse sectional view shown in Fig. 5.
Fig. 7 is the point-type active smoke detector structure forward direction sectional view with aspiration pump that the embodiment of the present invention 3 provides.
Fig. 8 is the point-type active smoke detector structure forward direction sectional view with filter element that the embodiment of the present invention 4 provides.
Fig. 9 is the point-type active smoke detector structure forward direction section view with air velocity transducer that the embodiment of the present invention 5 provides
Figure.
Figure 10 is the point-type active smoke detector structural representation with air collecting pipe that the embodiment of the present invention 6 provides.
Figure 11 is the point-type active smoke detector another kind structural representation with air collecting pipe that the embodiment of the present invention 6 provides
Figure.
Figure 12 is the air sampling system for point-type active smoke detector of the use with air collecting pipe that the embodiment of the present invention 7 provides
System structural representation.
Figure 13 is the air sampling system for point-type active smoke detector of the use with air collecting pipe that the embodiment of the present invention 7 provides
Unite another structural representation.
Figure 14 is that the air for point-type active smoke detector of three groups of the use with air collecting pipe that the embodiment of the present invention 8 provides is adopted
Sample system structure diagram.
Figure 15 is that the air for point-type active smoke detector of three groups of the use with air collecting pipe that the embodiment of the present invention 8 provides is adopted
Sample system another kind structural representation.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment actively feels cigarette spy to the point-type provided by the invention with or without air collecting pipe
Survey device and sampling system is described in detail.Identical drawing reference numeral is used with prior art identical part.
Embodiment 1：
As shown in Figure 3 and Figure 4, the point-type active smoke detector that the present embodiment provides includes (by taking infrared light sensation cigarette as an example)
Monitoring chamber 23 with gas import and export, the sensor 24 and master control borad 25 being made up of infrared emission tube and reception pipe；Wherein
Sensor 24 is arranged in monitoring chamber 23, and from the air-flow that gas feed is sucked in monitoring chamber 23 by infrared on sensor 24
Two beam intersection regions between line transmitting tube and reception pipe, master control borad 25 electrically connects with sensor 24, for detection sensor
Electrical parameter changes and is judged and export failure or fire alarm signal.
Explanation：Two light beams between infrared emission tube and reception pipe are for transmitting tube, actually from transmitting tube
The light beam for the cone shape launched for starting point, and for reception pipe, it is exactly the cone received using reception pipe as starting point
A branch of virtual optical of shape.Two beam center axis between infrared emission tube and reception pipe refer to above-mentioned two cone
Central axis.
In the present embodiment, gas import and export is respectively positioned at the top surface and bottom surface for monitoring chamber 23, in this case, by arrow
Two beam centers on the air-flow and sensor 24 in suction monitoring chamber 23 shown in head between infrared emission tube and reception pipe
Plane where axis is perpendicular.
Master control borad 25 in the present embodiment is to be horizontally set on bottom in monitoring chamber 23, in this case, above-mentioned to make
Suction airflow can concentrate the two beam center axis institutes passed perpendicularly through on sensor 24 between infrared emission tube and reception pipe
Plane, and by two beam intersection regions on sensor 24 between infrared emission tube and reception pipe, it is necessary in master
Control the middle part perforate of plate 25；Master control borad 25 can certainly be arranged on will not hinder air-flow through monitoring chamber 23 and by sensing
Outside any position in two beam intersection regions on device 24 between infrared emission tube and reception pipe, such as monitoring chamber 23.
Described master control borad 25 (also known as signal processing unit) includes microprocessor, photoelectric conversion unit and signal output list
Member；Wherein：
Microprocessor is used to the smoke signal of photoelectric conversion unit carrying out analog-to-digital conversion, is then analyzed, judged, and
Siren and indicator lamp is controlled to send sound and light alarm signal when judging to occur fire, while to signal output unit and outside
Control unit output control signal；
Photoelectric conversion unit, one end are connected with sense smoke sensor, and the other end passes through signal amplification unit and microprocessor phase
Connect, the smog optical signal for sense smoke sensor to be detected is converted to current signal, then after signal amplification unit amplifies
Send microprocessor to；
Signal output unit, one end are connected with microprocessor, and the other end passes through bus or multi-thread with fire alarm system phase
Connect, alarm signal and alert locations are sent to fire alarm system when a fire.
The point-type active smoke detector that the present embodiment provides is typically mounted at air channel supervisor above or on its branch pipe, Ke Yizuo
Used for air channel point detector or distributing point detector.When described point-type active smoke detector is arranged on above-mentioned wind
When on road main road or on its branch pipe, ambient outside air is sucked using air channel blower fan, the gas will pass through above-mentioned point-type and actively feel
Gas feed on smoke detector enters the inside of monitoring chamber 23, then by sensor 24, is discharged afterwards from gas vent.One
Denier sensor 24 break down or ambient outside air in there is smoke particle, the master control borad 25 being connected with sensor 24 will be examined
There is anomalous variation in the electrical parameter for measuring sensor 24, therefore can judge that sensor 24 breaks down or occurred fire immediately
Calamity, so as to export failure or fire alarm signal.
Infrared sensor that described sensor 24 can be made up of infrared emission tube and reception pipe or by
The laser sensor of feux rouges, the LASER Discharge Tube of blue light or green-light source and reception pipe composition, or above-mentioned infrared sensor or sharp
The combination of at least one of optical sensor and gas sensor, temperature sensor.
Described gas sensor is carbon monoxide, sulfur dioxide, carbon dioxide, ammonia, hydrogen sulfide or oxynitrides gas
Body sensor etc..
Embodiment 2
As shown in Figure 5 and Figure 6, the point-type active smoke detector that the present embodiment provides includes (by taking infrared light sensation cigarette as an example)
Monitoring chamber 23 with gas import and export, the sensor 24 and master control borad 25 being made up of infrared emission tube and reception pipe；Wherein
Sensor 24 is arranged in monitoring chamber 23, and from the air-flow that gas feed is sucked in monitoring chamber 23 by infrared on sensor 24
Two beam intersection regions between line transmitting tube and reception pipe, master control borad 25 electrically connects with sensor 24, for detection sensor
Electrical parameter changes and is judged and export failure or fire alarm signal.
In the present embodiment, gas import and export is respectively positioned at two sides relative on chamber 23 are monitored, in this case,
By two light beams on the air-flow and sensor 24 in the suction monitoring chamber 23 shown in arrow between infrared emission tube and reception pipe
Plane parallel where central axis.
Master control borad 25 can be horizontally set in the way of shown in Fig. 5 and Fig. 6 monitoring chamber 23 in bottom, so as to sensing
The plane where two beam center axis on device 24 between infrared emission tube and reception pipe is parallel；Can also be according to Fig. 3 institutes
The mode shown is set；As long as master control borad 25 will not hinder air-flow through monitoring chamber 23 when being arranged on any position inside and outside monitoring chamber 23
And by two beam crosses regions on sensor 24 between infrared emission tube and reception pipe.
Point-type active smoke detector that the present embodiment provides is the same manner as in Example 1 be typically mounted at air channel supervisor it is upper or its
On branch pipe, air channel point detector or distributing point detector can be used as to use.Its course of work and alarm principle are the same as real
Example 1 is applied, therefore is no longer repeated here.
Infrared sensor that described sensor 24 can be made up of infrared emission tube and reception pipe or by
The laser sensor of feux rouges, the LASER Discharge Tube of blue light or green-light source and reception pipe composition, or above-mentioned infrared sensor or sharp
The combination of at least one of optical sensor and gas sensor, temperature sensor.
Described gas sensor is carbon monoxide, sulfur dioxide, carbon dioxide, ammonia, hydrogen sulfide or oxynitrides gas
Body sensor etc..
Embodiment 3
To make the point-type active smoke detector that embodiment 1 or 2 provides not only be applied only on air channel supervisor or its branch pipe,
But can be used alone, as shown in fig. 7, the point-type active smoke detector that the present embodiment provides is provided in embodiment 1 or 2
Point-type active smoke detector on the basis of monitored at it and increase aspiration pump 27 at into or out gas port of chamber 23, and by aspiration pump 27
Electrically connected with master control borad 25, other parts are identical with embodiment 1 or 2.
The point-type active smoke detector that the present embodiment provides can be arranged in area of fire protection or fire hazard region, can
Directly using aspiration pump 27 by the ambient outside air in the region by monitoring the suction monitoring chamber 23 of the gas feed on chamber 23
Inside, then by sensor 24, discharged afterwards from gas vent.Once sensor 24 breaks down or ambient outside air
In there is smoke particle, the master control borad 25 being connected with sensor 24 will detect that abnormal become occurs in the electrical parameter of sensor 24
Change, therefore can judge that sensor 24 breaks down or occurred fire immediately, so as to export failure or fire alarm signal.
Embodiment 4
Although the point-type active smoke detector that above-described embodiment 1-3 provides can be applied in clean place or general ring
Border place, it can be actively interior by the ambient outside air suction monitoring chamber 23 in search coverage and detected in time, so as to
Detection time of the detector to detection zone internal and external environment gas is substantially reduced, if but being applied to above-mentioned detector all
During such as the more severe place of dust, this point-type active smoke detector is possible to occur reporting by mistake or problem of not alarming.
In order to solve the problem, as shown in figure 8, the point-type active smoke detector that the present embodiment provides is in embodiment
The filter element for being provided for filtering out dust at the gas feed of chamber 23 is monitored on point-type active smoke detector described in 1-3
21, other parts are identical with embodiment 1-3.
Described filter element 21 can select different types according to the particle size of detector monitors material, for example filter
Layer is using filter of air filter paper or polypropylene non-woven fabric etc..
Embodiment 5
In order to which the point-type active smoke detector for preventing embodiment 4 from providing occurs due to dust mistake in During Process of Long-term Operation
It is more and cause filter layer on filter element 21 to block, so as to cause detector can not timely detection alarm, it is therefore desirable to and
When remind attendant's the problem of being changed or being cleaned, as shown in figure 9, the point-type active smoke detector that the present embodiment provides
Air velocity transducer is set up in the gas circuit held before or after the aspiration pump 27 for being point-type active smoke detector described in example 4
26, and air velocity transducer 26 is electrically connected with master control borad 25, other parts are same as Example 4.
Described air velocity transducer 26 is using type air velocity transducers such as RTD, germanium thermistor or ultrasonic waves.
Described aspiration pump 27 is the Minitype centrifugal or axial flow blower or minipump aspiration pump of variable-ratio, and it can be with
Filter layer chocking-up degree and gradually seriously increase rotating speed.
Under normal circumstances, the point-type active smoke detector that the present embodiment provides is arranged in search coverage, and its is direct
The ambient outside air in search coverage is taken out by monitoring the filter element 21 on chamber 23 at gas feed using aspiration pump 27
Enter, then by sensor 24, the air velocity transducer 26 being arranged in gas circuit will monitor air-flow size in real time；When master control borad 25 is examined
Measure when the electrical parameter of sensor 24 reaches fire alarm threshold value and export fire alarm；When master control borad 25 detect sensor 24,
In air velocity transducer 26 and aspiration pump 27 during any failure, master control borad 25 exports fault-signal.
When master control borad 25 detects that the monitoring air-flow of air velocity transducer 26 is less than to a certain degree, and sensor 24 and aspiration pump
27 when not breaking down, and master control borad 25 will control the speed governing of aspiration pump 27 or directly send the block information of filter element 21；Such as
The monitoring air-flow that fruit master control borad 25 is controlled, directly or indirectly air velocity transducer 26 after the speed governing of aspiration pump 27 still can not improve, can be with
Directly send the block information of filter element 21；If master control borad 25 is controlled, directly or indirectly air velocity transducer after the speed governing of aspiration pump 27
26 monitoring air-flow can improve, and detector can continue to run until that master control borad 25 is controlled, directly or indirectly aspiration pump 27 and adjusted again
The monitoring air-flow of air velocity transducer 26 can not improve after speed, then send the block information of filter element 21.
In addition, national standard《Code for design of automatic fire alarm systems》The 6.2.2 articles~the 6.2.10 articles of GB50116-2013
Mounting design requirement of the smoke point detector under the conditions of various building structure is defined, such as room space requirement for height, top
The depth of beam size requirements of canopy, to wall, beam side horizontal range requirement etc.；Other the 6.2.11 articles regulation of the standard：" point-type
Smoke detector is preferably horizontally mounted.When tilting installation, inclination angle not should be greater than 45 ° ".These design and installations requirement is all based on
Smoke particle caused by fire by its in search coverage space natural diffuseness feature and limit, therefore above-mentioned point-type master
Dynamic smoke fire detector must not only be paid special attention to meet various building structure requirements in engineering design, therefore cause engineering to set
It is troublesome to count work, and even if being designed in strict accordance with standard criterion, because the condition of construction at engineering construction scene is sufficiently complex,
Therefore it also is difficult to reach design requirement during in-site installation smoke point detector.
Embodiment 6
Figure 10 is the point-type active smoke detector structural representation with air collecting pipe that the present embodiment provides.Such as Figure 10 institutes
Show, the point-type active smoke detector with air collecting pipe includes the monitoring chamber 23 with gas import and export, by photoemission
The photoelectric sensor 24 and master control borad 25 of pipe and reception pipe composition；Wherein master control borad 25 and photoelectric sensor 24 may be provided at prison
Survey in chamber 23, and the air-flow sucked from gas feed in monitoring chamber 23 passes through photoemission cell and reception on photoelectric sensor 24
Two beam intersection regions between pipe, master control borad 25 electrically connect with photoelectric sensor 24, change for detection sensor electrical parameter
And judged and export failure or fire alarm signal；Aspiration pump 27 is provided with the gas outlet of monitoring chamber 23；Described
Point-type active smoke detector with air collecting pipe also includes being connected and carrying gas production point or hole with the gas feed of monitoring chamber 23
Air collecting pipe 08；False alarm is caused in order to prevent detector due to dust, can be in the gas feed of monitoring chamber 23
Place sets filter element 21.
The position that as long as smoke particle according to caused by occurring fire in search coverage may spread when air collecting pipe 08 is laid
Put to determine the position of the point of gas production thereon or hole (in fact, the position in gas production point or hole instead of conventional point type smoke detector
Set location), while point-type active smoke detector is placed on to suitable position easy for installation, without considering to visit
The specific labyrinth of building in region is surveyed, for example point-type active smoke detector need not be arranged on very high ceiling, this
Sample can cause maintenance conditions all cumbersome；It can also monitor on point-type active smoke detector and connect at the gas feed of chamber 23
Connect a gas production pipe network.Air collecting pipe 08 can be made of flexible plastic, rigid plastics or steel pipe.So actual installation position of detector
Put can not by fabric structure height (when detection height exceed conventional detectors requirement when, can be by using different length
The air collecting pipe mode of degree reduces detection height, so as to meet detection requirement), the limitation of gradient, the factor such as position, such as
It can fill, not installed, not by house oblique top gradient shadow by the optional position ceiling of house beam height limitation in wall different height side
Loud optional position ceiling installation etc..
The gas vent that chamber 23 is monitored on point-type active smoke detector can also be connected with air draft pipe, at this moment with regard to nothing
Aspiration pump 27 need to be set；Furthermore it is also possible to conveying gas blower is set at the gas feed of monitoring chamber 23 or the gas of chamber 23 will be monitored
Body import is connected with air supply duct.
The photoelectric sensor is the infrared sensor being made up of infrared emission tube and reception pipe, or by feux rouges, blue light
Or the laser sensor of LASER Discharge Tube and the reception pipe composition of green-light source, or above-mentioned infrared sensor or laser sensor with
The combination of at least one of gas sensor, temperature sensor.
Figure 11 is to be monitored on two point-type active smoke detectors for not carrying independent air extractor at the gas feed of chamber
Connect the mounting means schematic diagram of a gas production pipe network 08 ' with gas production hole.As shown in figure 11, independent air extractor is not carried each
Point-type active smoke detector include the monitoring chamber 23 with gas import and export, be made up of photoemission cell and reception pipe
Photoelectric sensor 24 and master control borad 25；Wherein master control borad 25 and photoelectric sensor 24 may be provided in monitoring chamber 23, and from
Air-flow in gas feed suction monitoring chamber 23 is by two light beams on photoelectric sensor 24 between photoemission cell and reception pipe
Intersecting area, master control borad 25 electrically connect with photoelectric sensor 24, change for detection sensor electrical parameter and carry out judge and it is defeated
It is out of order or fire alarm signal；The gas vent of monitoring chamber 23 is connected with air draft passage 07 ', and the gas of two monitoring chambers 23 enters
Mouth connects a gas production pipe network 08 ' with gas production hole respectively；False alarm is caused in order to prevent detector due to dust, can
To set filter element 21 at the gas feed of each monitoring chamber 23.So, as long as according to detection when gas production pipe network 08 ' is laid
In region fire occur caused by the position that may spread of smoke particle determine the position of the point of gas production thereon or hole, simultaneously will
Point-type active smoke detector is placed on suitable position easy for installation, the tool without considering building in search coverage
Body labyrinth, for example point-type active smoke detector need not be arranged on very high ceiling, so it can cause maintenance conditions all
It is cumbersome；Gas production pipe network 08 ' can be made of flexible plastic, rigid plastics or steel pipe.
Embodiment 7
Figure 12 is the sampling system knot for point-type active smoke detector of the use with air collecting pipe that the present embodiment provides
Structure schematic diagram.As shown in figure 12, traditional sampling system mainly includes an at least sampling pipe 28, cabinet 22, pumping wind
Case 34 and pumping blower fan, air collecting pipe 08, the laser sensing list being made up of laser sensor and laser monitoring chamber in it
Member, system operation unit 05 ' and display unit 33；Wherein it is evacuated bellows 34 and laser sensing unit is arranged in cabinet 22；Adopt
One end of sample pipe 28 is connected on the air inlet of pumping bellows 34 after running through cabinet 22, is evacuated the side exhaust outlet of bellows 34 by adopting
Tracheae 08 is connected with the gas feed of laser sensing unit；System operatio control unit 05 ' and display unit 33 are arranged on cabinet
On 22；The present embodiment is that laser sensing unit is replaced with into the point-type on the basis of traditional sampling system actively to feel cigarette
The monitoring chamber 23 of gas import and export is provided with detector and is arranged in monitoring chamber 23 and is made up of photoemission cell and reception pipe
The photoelectric sensing unit that forms of photoelectric sensor 24, the gas feed of described monitoring chamber 23 is connected on air collecting pipe 08.Can
The side exhaust outlet of a small amount of air from pumping bellows 34 is poured into monitoring chamber through air collecting pipe 08 using the flow inertance being evacuated in blower fan
It is monitored in 23.In addition, laser sensing is used than traditional using the sampling system based on this photoelectric sensing unit
The sampling system cost of device and its monitoring chamber can substantially reduce.
In addition, in order to improve flow and speed into the sample gas in photoelectric sensing unit in monitoring chamber 23, such as scheme
Shown in 13, independent aspiration pump 27 can be set in the gas outlet of monitoring chamber 23, so can further improve system fire
The response time of alarm, while can overcome and windage caused by filter element 21 is set at the gas feed of monitoring chamber 23,
So as to be more beneficial for the timely quick detection fire of system.
Embodiment 8
Figure 14 is the air sampling system for point-type active smoke detector of three groups of the use with air collecting pipe that the present embodiment provides
System structural representation.As shown in figure 14, the air sampling of point-type active smoke detector of three groups of the described use with air collecting pipe
System includes 22, three groups of cabinet point-type active smoke detector, centralized operation control unit 05 and display unit with air collecting pipe
33；The structure of wherein point-type active smoke detector is as shown in Figure 10, it include with gas import and export monitoring chamber 23, by
The photoelectric sensor 24 and master control borad 25 of photoemission cell and reception pipe composition；Wherein photoelectric sensor 24 is arranged on monitoring chamber 23
It is interior, and the air-flow sucked from gas feed in monitoring chamber 23 passes through on photoelectric sensor 24 between photoemission cell and reception pipe
Two beam intersection regions, master control borad 25 electrically connects with photoelectric sensor 24, changes for detection sensor electrical parameter and carry out
Judge and export failure or fire alarm signal；Aspiration pump 27 is provided with the gas outlet of monitoring chamber 23；More air collecting pipes 08
One end run through cabinet 22 after be connected to one monitoring chamber 23 gas feed on；Centralized operation control unit 05 and display unit
33 are arranged on cabinet 22.False alarm is caused in order to prevent detector due to dust, can be in each monitoring chamber 23
Gas feed at set filter element 21.This sampling system is actively to feel cigarette by point-type of at least one set with air collecting pipe
Detector forms, and it is convenient to be combined than traditional sampling system, and sampling system cost can substantially reduce.
Figure 15 is the air sampling system for point-type active smoke detector of three groups of the use with air collecting pipe that the present embodiment provides
Unite another structural representation.As shown in figure 15, it is to connect the gas vent of each monitoring chamber 23 by connecting tube in the system
It is connected on total exhaust pipe 31, and a total aspiration pump 27 ' is installed on total exhaust pipe 31.
Claims (20)
1. a kind of point-type active smoke detector, mainly including master control borad (25), monitoring chamber (23), be arranged in monitoring chamber (23)
And the sensor (24) that is made up of photoemission cell with reception pipe and monitoring chamber (23) are connected and can be by search coverage
Air be pumped into extractor fan in monitoring chamber (23), and monitor and be provided with gas import and export on chamber (23), its feature exists
In：Directly to gas vent, gas import and export is separately positioned on monitoring chamber (23) for gas feed on described monitoring chamber (23)
Top surface and bottom surface, and two light beams passed through through the air-flow in monitoring chamber (23) described photoemission light and reception pipe
Intersection region.
2. point-type active smoke detector according to claim 1, it is characterised in that：The master control borad (25) is horizontally disposed
In the inside of monitoring chamber (23), hole directly is being offered to master control borad (25) corresponding position of gas import and export.
3. point-type active smoke detector according to claim 1, it is characterised in that：Described photoemission cell and reception
Pipe respectively infrared light emission inner tube and reception pipe, or the respectively LASER Discharge Tube and reception pipe of feux rouges, blue light and green glow.
4. point-type active smoke detector according to claim 1, it is characterised in that：Described photoemission light and reception
The angle between two beam center axis between pipe is more than 0 degree, and is less than 180 degree.
5. the point-type active smoke detector according to claim 1 or 2 or 3 or 4, it is characterised in that：Described passes through prison
Plane where surveying two beam center axis between the air-flow in chamber (23) and described electricity transmitting light and reception pipe is perpendicular
It is or parallel.
6. point-type active smoke detector according to claim 1, it is characterised in that：Described point-type active smoke detection
Device also includes gas sensor/or temperature sensor.
7. point-type active smoke detector according to claim 6, it is characterised in that：Described gas sensor is an oxygen
Change carbon, sulfur dioxide, carbon dioxide, ammonia, hydrogen sulfide or oxynitrides gas sensor.
8. point-type active smoke detector according to claim 1, it is characterised in that：Described extractor fan is provided in
The aspiration pump of gas feed or gas outlet (27) on described monitoring chamber (23), or air draft passage.
9. point-type active smoke detector according to claim 8, it is characterised in that：Described aspiration pump (27) is variable
The Minitype centrifugal or axial flow blower of speed or miniature true control pumping air pump.
10. point-type active smoke detector according to claim 1, it is characterised in that：Described point-type actively feels cigarette spy
Surveying device also includes being arranged on the filter element (21) on the monitoring chamber (23) at gas feed.
11. point-type active smoke detector according to claim 10, it is characterised in that：In described filter element (21)
Filter layer uses air filter paper or polypropylene non-woven cloth material.
12. point-type active smoke detector according to claim 1, it is characterised in that：Described point-type actively feels cigarette spy
Survey the air velocity transducer (26) that device also includes being provided through in the gas circuit that monitoring chamber (23) interior air-flow is passed through.
13. point-type active smoke detector according to claim 12, it is characterised in that：Described air velocity transducer (26)
From RTD, germanium thermistor or ultrasonic wind speed sensor.
14. a kind of point-type active smoke detector with air collecting pipe, the main monitoring chamber (23) for including there is gas import and export,
The photoelectric sensor (24) and master control borad (25) being made up of photoemission cell and reception pipe；Wherein master control borad (25) and photoelectric sensing
Device (24) is arranged in monitoring chamber (23), and the air-flow sucked from gas feed in monitoring chamber (23) passes through photoelectric sensor
(24) two beam intersection regions between photoemission cell and reception pipe group, master control borad (25) are electrically connected with photoelectric sensor (24)
Connect, change for detection sensor electrical parameter and judged and export failure or fire alarm signal；In monitoring chamber (23)
Gas outlet is provided with air extractor；It is characterized in that：The described point-type active smoke detector with air collecting pipe also include with
The gas feed of monitoring chamber (23) is connected and the gas production pipe with gas production point or hole.
15. the point-type active smoke detector according to claim 14 with air collecting pipe, it is characterised in that：Described gas production
Pipeline is an air collecting pipe (08) or a gas production pipe network (08').
16. the point-type active smoke detector with air collecting pipe according to claims 14 or 15, it is characterised in that：Described
Photoelectric sensor is the infrared sensor being made up of infrared transmitting tube and reception pipe, or swashing by feux rouges, blue light and green-light source
The laser sensor of light-emitting tube and reception pipe composition, or above-mentioned infrared sensor or laser sensor and gas sensor, temperature
Spend the combination of at least one of sensor.
17. the sampling system of the point-type active smoke detector according to claim 14 with air collecting pipe, main bag
Include an at least sampling pipe (28), cabinet (22), pumping bellows (34) and pumping blower fan in it, air collecting pipe (08),
Laser sensing unit, system operation unit (05') and the display unit (33) being made up of laser sensor and laser monitoring chamber；Its
Middle pumping bellows (34) and laser sensing unit are arranged in cabinet (22)；One end of sampling pipe (28) connects after running through cabinet (22)
It is connected on the air inlet of pumping bellows (34), the side exhaust outlet of pumping bellows (34) passes through air collecting pipe (08) and laser sensing unit
Gas inlet be connected；System operatio control unit (05') and display unit (33) are arranged on cabinet (22)；Its feature exists
In：Described laser sensing unit can be by the monitoring chamber provided with gas import and export in described point-type active smoke detector
(23) and it is arranged on the photoelectricity that the photoelectric sensor (24) being made up of in monitoring chamber (23) and photoemission cell and reception pipe is formed
Sensing unit is replaced, and the gas feed for monitoring chamber (23) is connected on air collecting pipe (08).
18. sampling system according to claim 17, it is characterised in that：The gas vent of described monitoring chamber (23)
Place is provided with aspiration pump (27).
19. a kind of sampling system of point-type active smoke detector with air collecting pipe using described in claim 14, its
It is characterised by：Described sampling system mainly includes cabinet (22), the point-type active smoke detection of at least one set of sampling pipe
Device, centralized operation control unit (05) and display unit (33)；Wherein point-type active smoke detector has gas import and export
Monitor chamber (23), the photoelectric sensor (24) being made up of photoemission cell and reception pipe, master control borad (25), air collecting pipe (08)；Its
Middle photoelectric sensor (24) is arranged in monitoring chamber (23), and the air-flow sucked from gas feed in monitoring chamber (23) passes through light
Two beam intersection regions on electric transducer (24) between photoemission cell and reception pipe, master control borad (25) and photoelectric sensor
(24) electrically connect；One end of air collecting pipe (08) is connected in the gas feed of monitoring chamber (23) after running through cabinet (22)；Concentrate behaviour
Make control unit (05) and display unit (33) is arranged on cabinet (22)；The gas outlet of monitoring chamber (23) is provided with aspiration pump
(27)。
20. sampling system according to claim 19, it is characterised in that：Described is arranged on described air sampling
The aspiration pump (27) for monitoring the gas vent of chamber (23) in system at least one set of point-type active smoke detector can be total by one
Air extractor is replaced, and the gas vent each monitored on chamber (23) is connected on total exhaust pipe of total air extractor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510894317.9A CN105374154B (en) | 2015-01-20 | 2015-12-08 | With or without the point-type active smoke detector and sampling system of air collecting pipe |
| PCT/CN2016/071249 WO2016116024A1 (en) | 2015-01-20 | 2016-01-18 | Point-type active smoke detector with or without gas sampling tube and air sampling system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510027055.6A CN104574776A (en) | 2015-01-20 | 2015-01-20 | Point type proactive smoke detecting detector |
| CN2015100270556 | 2015-01-20 | ||
| CN201510894317.9A CN105374154B (en) | 2015-01-20 | 2015-12-08 | With or without the point-type active smoke detector and sampling system of air collecting pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105374154A CN105374154A (en) | 2016-03-02 |
| CN105374154B true CN105374154B (en) | 2017-11-28 |
Family
ID=53090726
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510027055.6A Pending CN104574776A (en) | 2015-01-20 | 2015-01-20 | Point type proactive smoke detecting detector |
| CN201510894317.9A Active CN105374154B (en) | 2015-01-20 | 2015-12-08 | With or without the point-type active smoke detector and sampling system of air collecting pipe |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510027055.6A Pending CN104574776A (en) | 2015-01-20 | 2015-01-20 | Point type proactive smoke detecting detector |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN104574776A (en) |
| WO (1) | WO2016116024A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11828687B2 (en) | 2020-05-08 | 2023-11-28 | Carrier Corporation | Detection of a clogged filter in an aspirating detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104574776A (en) * | 2015-01-20 | 2015-04-29 | 西安博康电子有限公司 | Point type proactive smoke detecting detector |
| CN110234980A (en) * | 2017-02-09 | 2019-09-13 | 基伊埃工程技术股份有限公司 | The early detection of the powder that glows in powder drying system including CO gas detecting system |
| CN106959355A (en) * | 2017-04-19 | 2017-07-18 | 杨和生 | active gas sensor |
| EP3640905A4 (en) * | 2017-06-14 | 2021-03-17 | Hochiki Corporation | Alarm device |
| CN107516397B (en) * | 2017-09-28 | 2023-04-07 | 深圳市泰和安科技有限公司 | Photoelectric smoke detector |
| US11783688B2 (en) | 2018-03-13 | 2023-10-10 | Carrier Corporation | Aspirating detector system |
| CN110276927B (en) * | 2018-03-16 | 2024-05-28 | 科航（苏州）信息科技有限公司 | Waterproof infrared light smoke detector for throwing |
| CN108287069B (en) * | 2018-03-19 | 2023-06-20 | 华电电力科学研究院有限公司 | Connecting device and connecting method for fixing backrest tube and test port |
| CN109377710A (en) * | 2018-12-21 | 2019-02-22 | 黎耀呀 | It is a kind of can pole early stage security against fire fire alarm detection method and device |
| US11493229B2 (en) | 2019-03-20 | 2022-11-08 | Carrier Corporation | Chamberless wide area duct smoke detector |
| CN110068532B (en) * | 2019-04-18 | 2024-03-05 | 浙江东方职业技术学院 | Point-type optical fiber smoke-sensing fire detector with built-in light splitting optical fiber for signal indication |
| CN110570618B (en) * | 2019-08-30 | 2024-01-30 | 应急管理部沈阳消防研究所 | Point-type air suction type fire detection system and method based on two buses |
| US11506586B2 (en) | 2020-08-17 | 2022-11-22 | Carrier Corporation | Photoelectric smoke sensor tube |
| CN112439276B (en) * | 2020-11-04 | 2022-09-09 | 王建 | Smoke inductor is used to workshop safety |
| CN112525857B (en) * | 2020-11-26 | 2023-09-05 | 合肥铜冠信息科技有限责任公司 | Multi-verification motor vehicle tail gas remote measuring device and verification method |
| CN113611073A (en) * | 2021-07-27 | 2021-11-05 | 北京众合安消防技术有限公司 | Quick detection device of fire alarm system |
| CN114540177B (en) * | 2022-04-25 | 2022-07-01 | 至美时代生物智能科技(北京)有限公司 | Impact type air sampler |
| CN116311762B (en) * | 2023-03-24 | 2023-09-12 | 青岛峻海物联科技有限公司 | Internet of things smoke sensing device with ignition point sensing function and application method thereof |
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| JP3714926B2 (en) * | 2002-08-22 | 2005-11-09 | ホーチキ株式会社 | Sampling tube smoke detector |
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| CN203025892U (en) * | 2013-01-08 | 2013-06-26 | 中国科学技术大学 | Active aspiration point type photoelectric smoke sensing detector |
| CN204423580U (en) * | 2015-01-20 | 2015-06-24 | 西安博康电子有限公司 | A kind of point-type initiatively smoke detector |
| CN104574776A (en) * | 2015-01-20 | 2015-04-29 | 西安博康电子有限公司 | Point type proactive smoke detecting detector |
-
2015
- 2015-01-20 CN CN201510027055.6A patent/CN104574776A/en active Pending
- 2015-12-08 CN CN201510894317.9A patent/CN105374154B/en active Active
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2016
- 2016-01-18 WO PCT/CN2016/071249 patent/WO2016116024A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11828687B2 (en) | 2020-05-08 | 2023-11-28 | Carrier Corporation | Detection of a clogged filter in an aspirating detection system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016116024A1 (en) | 2016-07-28 |
| CN105374154A (en) | 2016-03-02 |
| CN104574776A (en) | 2015-04-29 |
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Denomination of invention: Point type active smoke detector with or without gas collecting pipe and air sampling system Effective date of registration: 20210329 Granted publication date: 20171128 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: XI'AN BOKANG ELECTRONICS Co.,Ltd. Registration number: Y2021610000075 |
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Date of cancellation: 20220321 Granted publication date: 20171128 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: XI'AN BOKANG ELECTRONICS Co.,Ltd. Registration number: Y2021610000075 |