CN85103353A - The automatic fire sprinkler that has infrared ray responsive type fire detector - Google Patents
The automatic fire sprinkler that has infrared ray responsive type fire detector Download PDFInfo
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- CN85103353A CN85103353A CN85103353.9A CN85103353A CN85103353A CN 85103353 A CN85103353 A CN 85103353A CN 85103353 A CN85103353 A CN 85103353A CN 85103353 A CN85103353 A CN 85103353A
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Abstract
A fire detector is housed in the automatic fire sprinkler, this detector can be accepted the infrared ray from one of many light-sensitive elements in its monitor area, this light-sensitive element is corresponding with the infrared ray incidence angle of the assembly that passes through an infrared penetration wave filter and collector lens, it is the result who differentiates the fire disaster flame disturbance that the monitoring output of detector changes, when detection output is higher than predetermined value, can control and drive a jet, make it point to flame direction, and to the flame spray fire extinguishing agent, the only monitoring that just can prepare at the fire initial stage and effectively fire extinguishing, thus any misoperation that causes because of other infrared source prevented.
Description
The present invention relates to a kind of automatic fire sprinkler, relate to a kind of improved automatic fire sprinkler or rather, this spray have a fire initial launch ultrared reception and checkout gear, and can make fire pump and sprayer, aim at the flame initial position automatically it put out.
The automatic fire sprinkler of this type side comprises that being installed in fire detector and the extinguishing chemical injector that building indoor ceiling etc. locates forms; Like this, when fire detector is tested the fire initial position, just open helitank, to indoor ejection extinguishing chemical, effectively put out a fire by the spout of injector.
The exemplary of tradition automatic fire sprinkler is a kind of sprinkler system that is referred to as, generally be equipped with a smoke sensor or a heat sensor, perhaps cigarette and heat sensor have, and be equipped with many sprinkler heads that are installed on the diverse location, therefore, in case smoke sensor or heat sensor send detection signal, these fountain heads just will be carried out fire extinguishing towards a large amount of extinguishing fluid of indoor all directions ejection, yet actual sprinkler system is incomplete, usually need not sprinkle water in so big scope, in addition, the extinguishing chemical carrier pipe and the actuator of corresponding complexity need be installed by this system, thereby mounting cost is increased, and outward appearance is not attractive in appearance yet.
In order to overcome above-mentioned shortcoming, it is 1 that the inventor has proposed Japanese patent application No., 035,605 automatic fire sprinkler, this machine comprises that the inspection of infrared ray responsive type fire retouches device, many light-sensitive elements are wherein arranged, and the assembly of infrared penetration wave filter and collector lens, be used on a light-sensitive element accepting infrared ray in the fire disaster flame according to position on fire, the meter that links to each other with helitank in addition is equipped with and along X-axis, the moving device of y-axis shift in addition, be used for making an injector to aim at position on fire, and make helitank open spray fire extinguishing agent; Respond the fire detector output signal in addition, the device that helitank is opened.
So, when fire begins, through the infrared ray of wave filter just by the optically focused mirror on some light-sensitive elements, obtain the index signal of a fire initial position, and it is sent into a device that makes jet turn to position on fire, and the device of opening helitank; Thereby injector is controlled and point to fire location, and simultaneously, helitank is opened, the operation of putting out a fire automatically.The advantage of the spray of this Japan Patent is that this machine can use an independent extinguishant jetting device, therefore, can simplify layout, has significantly reduced mounting cost; But, the shortcoming of this spray is also to respond for other light beyond the fire that is detected, the infrared ray that thermal source sends, and this is undesirable, all responds such as sunshine, electric light light or other thermals source, therefore can cause the maloperation of fire extinguishing action.
In sum, basic purpose of the present invention is, a kind of automatic fire sprinkler is proposed, it is simple in structure, cheap, the infrared ray of flame and other infrared source beyond the flame can not only be identified, and the difference of flame can be differentiated, and then can prevent misoperation, its reliability can significantly improve.
Adopt automatic fire sprinkler of the present invention, just can realize above-mentioned this purpose.This automatic fire sprinkler is provided with a fire detector, can accept the infrared ray from a light-sensitive element in many light-sensitive elements, and this infrared ray conforms to the incidence angle of the light of the assembly that enters infrared penetration wave filter and collector lens; Be subjected to extinguishing chemical injector by the detection output signal control of fire detector, just turn to the initial flame of fire, so when the output signal of fire detector is higher than predetermined value, the injector that is communicated with helitank will be opened, extinguishing chemical from jar through spout directive flame, on the device of handling the fire detector detection signal, be provided with one further by the form of its intrinsic flicker, differentiate the variation of flame size.
By following accompanying drawing, and, will further know other purpose of the present invention and advantage to the detailed description that the embodiment that recommends carries out.
Simple declaration to accompanying drawing:
Fig. 1 is schematic diagram that has the automatic fire sprinkler of infrared ray responsive type fire detector among the present invention.
Fig. 2 is the side view that the automatic fire sprinkler of Fig. 1 partly amplifies.
Fig. 3 is the key diagram that the interior fire detector of automatic fire sprinkler monitors surveyed area among Fig. 1.
Fig. 4 is the block diagram of the observation process embodiment of the interior fire detector output signal of automatic fire sprinkler among Fig. 1.
Fig. 5 A represents to be subjected to light row to go up the oscillogram of light-sensitive element output signal, and the output waveform figure of signal processor among Fig. 4.
Fig. 5 B is the oscillogram of the interior waveform shaping circuit output signal of signal processor among Fig. 4.
Fig. 6 is the detailed structure view of block diagram circuit shown in Figure 4.
Set forth when of the present invention by the relevant embodiment that accompanying drawing is recommended, must be clearer and more definite, the present invention is confined to the specific embodiments shown in the figure, but is included in the claim scope, all mutation that institute may comprise, improvement and suitable design.
The explanation of preferred embodiment:
With reference to Fig. 1-3, automatic fire sprinkler of the present invention comprises: one is detected the independent device 11 that 10, one of blowoffs comprise fire detector 12 and extinguishing chemical injector 13, and this extinguishing chemical injector is horizontal abreast.An opening 14 is arranged at the bottom of fire detector 12, and 18, one collector lenses of parts 16 and the ring holder 17 that is supporting infrared penetration wave filter and collector lens assembly of an infrared penetration wave filter 15 wherein are housed.In fire detector 12, also adorn one and be subjected to light row 19, these a plurality of light-sensitive elements that be arranged in rows by light are formed, thereby can make the infrared ray that drops into collector lens 16, will project on certain light-sensitive element by infrared penetration wave filter 15 by its incidence angle of assembling.Because this kind arrangement, surveyed area DA will and be subjected to position relation between the light row 19 and the detectability of light-sensitive element decides by collector lens 16.
The extinguishing chemical injector 13 that detects blowoff 10 comprises a cylindricality ejectisome 20, it can axially rotate in device 11, and be connected with the output shaft of fixing injector drive motors 21 on device 11 sidewalls, and cylindricality ejectisome 20 can be rotated in the scope of an angle of 90 degrees at least, and the position at the required angle in this scope stops, the opening 22 of set radial hole can move in groove 23 in the cylindricality ejectisome 20, this groove is located in the device 11, there is an opening its underpart, when motor 21 driven cylinder ejectisomes 20, the sidewall surfaces of this groove the rotating range of corresponding ejectisome 20 greater than an angle of 90 degrees.
On the other hand, detect the bottom that blowoff 10 is installed in the housing 24 of automatic fire sprinkler, be fixed in the housing 24 through axial swivel joint 25, make that detecting blowoff 10 can rotate with joint, and swivel joint 25 is coupled on the extinguishing chemical carrier pipe 26, its upper end at housing 224 is stretched out, and (not shown on the figure) closely is connected on the ejectisome 20 so that the feed extinguishing chemical in its lower end.In housing 24, there is a gear 27 axially to be installed to the lower end of carrier pipe 26 or swivel joint 25, can also connect by a suitable fixture if desired, gear 27 be installed in housing 24 in the output shaft of driving motor 28 on a pinion 29 be meshed.This design makes that the rotation of motor 28 is by pinion 29 axle vertical with 21 rotating shafts of gear 27(spout drive motors) order about and detect blowoff around revolving three-sixth turn with the perpendicular center line of spout drive motors 21 rotating shafts.Preferably housing 24 itself is placed in the top board 30, the bottom surface of housing 24 is exposed, perhaps only allow the lower end projecting shaft of extinguishing chemical carrier pipe 26 to swivel joint 25 and the bottom by top board, and housing 24 is fixed by bolts on the end face of building ceiling 31.
An end that is connected to extinguishing chemical supply pipe 32 is stretched out from housing 24 in the upper end of extinguishing chemical carrier pipe 26, and the other end of extinguishing chemical supply pipe 32 and helitank 33 link.This jar 33 can be opened by an actuator 35, and actuator 35 is to be controlled by the output signal of signal processor 34, and this point will illustrate below.After helitank 33 was opened by actuator 35, jar 33 interior extinguishing chemicals of certain pressure that keep were just rapid in cylindricality ejectisome 20 by extinguishing chemical supply pipe 32 and carrier pipe 26, and by injector 22 ejaculations.Extinguishing chemical in the jar 33 promptly can be liquid state and can be the powder shape again, and here the notion of " extinguishing chemical " also comprises water under high pressure.Among the embodiment that is described below, jars 33 are placed in the room, and extinguishing chemical supply pipe 32 is through the sidewall and the upper wall in room, stretch out and are connected on the extinguishing chemical carrier pipe 26 from jar 33.People will be appreciated that the surveyed area that detecting blowoff 10 is provided is actually the whole space in room, and only needs an extinguishing chemical supply pipe 32, compares with traditional sprinkler system, can simplify installment work widely.
The structure of signal processor 34 is described by accompanying drawing 4-6 now.Signal processor 34 comprises waveform shaping circuit 40
1, 40
2... 40
n, they are handled respectively and are subjected to light row to go up photoelectric detector 19
1, 19
2... 19
nThe detection output of (light-sensitive element of formation).When the output of photoelectric detector was higher than predetermined value, waveform shaping circuit 40 sent rectangular pulse respectively.Because the disturbance of flame itself, make to be subjected to light to arrange the infrared ray that each photoelectric detector on 19 will receive various brightness that on the other hand, the suffered light quantity of each optoelectronic receiver changes.For example at Fig. 5 A(a) in, the amount that infrared ray incides on the photoelectric detector is very low, so at Fig. 5 B(a) in corresponding just not output of waveform shaping circuit, will be not detected so resemble the ripple that a small amount of infrared ray such as stove fire sends, because its infra-red intensity is faint on photoelectric detector.
Each waveform shaping circuit 40
1, 40
2... 40
nPulse output be admitted to corresponding calculator 41
1, 41
2... 41
nIn, shaping circuit 40
1, 40
240
nTwo pairs of adjacent separately shaping circuits output to an AND gate circuit 42
1, 42
242
N-1(two pairs of inputs of AND gate circuit will illustrate afterwards).When the pulse number of any one output in the waveform shaping circuit reaches predetermined value, a counter 41 corresponding with it
1, 41
2... 41
nFirst OR-circuit 43 is sent in its output passes to electric current for spout drive motors 21.AND gate circuit 42
1, 42
2... 42
N-1Any one output be admitted to memory 44 and second OR-circuit 45.Like this, memory 44 will be preserved AND gate circuit 42
1, 42
2... 42
N-1The output of any end is represented a signal by two adjacent photoelectric detectors, and expresses the position that fire begins, and simultaneously output is sent into contactor 46, and it is connecting corresponding several AND gate circuits.The armature contact of contactor 46 is connected to by around the ejectisome 20 of motor 21 rotations, like this, when movable contact is run into corresponding when the special corresponding fixed contact of output is arranged, memory 44 will be exported a signal and make it stall to motor 21, up to memory again the solenoid 47 in the actuator on helitank 33 35 send into output signal, make power supply circuits be output as the solenoid 47 logical electric currents of going up.
Connect AND gate circuit 42
1, 42
2... 42
N-1Second OR-circuit 45 of output outputs to impulse generator 49, and an output of impulse generator leads to counter 41
1, 41
2... 41
nIn order to determine pre-fixation value, the gate time of Here it is individual count device.Like this, in the counter preset time.Can calculate the output umber of pulse of waveform shaping circuit, and when a kind of strong infrared ray incident (as sunlight reflected), any one photoelectric detector can not make waveform shaping circuit 40
1, 40
2... 40
nOutput is arranged.In other words, the major general that exports to of waveform shaping circuit has great waveform width, make each counter not count, so counter can not produce output, so the testing goal of fire detector is ignored any other infrared light sources (except the fire initialize signal) exactly.
Simply introduce the operation of automatic fire sprinkler according to the present invention.If the fire commencing signal has appearred in the surveyed area DA among Fig. 3, detect by smoke sensor, simultaneously output is sent into motor-drive circuit 50, feed electric current for device drive motors 28.Rotate when detecting blowoff 10, when making fire detector 12 directly aim at the initial position of fire, in other words, when fire detector 12 is transferred to when beginning to inject the infrared ray position that is subjected to the photoelectric detector group on the light row 19 from flame, by waveform shaping circuit 40
1, 40
2... 40
n Sum counter 41
1, 41
2... 41
nDifferentiate that this is not to some stoves to the discriminating from photoelectric detector, the detection of the infrared light beam of the constant level that the penlight of sunlight or the like is launched.After this, the output of counter is sent to OR-circuit 43, drives signal to spout drive motors 21 in order to provide one, and cylindricality sprinkler body 20 is rotated.
When the flame of beginning fire becomes quite big, the output of Photoelectric Detection waveform also will obviously increase (referring to accompanying drawing 5A(b)-(n)), the pulse output quantity of waveform shaping circuit also will increase, meanwhile, infrared light beam projects development and arranged on 19 interior two adjacent photoelectric detectors by light, certain AND gate circuit corresponding with these two photoelectric detectors just produces output, and should export through second OR-circuit 45 and deliver to impulse generator 49, so that the output of its response impulse generator 49, motor-drive circuit 50 makes 28 stalls of device drive motors, fire detector 12 will be parked on the position of pointing to dimple 23, comprise that injector 13 is towards position that fire begins.
When signal indication goes out the fire initial position, memory 44 is also sent in the output of AND gate circuit, ejectisome 20 responds these signals and rotates, when the movable breaker point of contactor 46 enters the fixed contact point of corresponding with it special AND gate circuit, stop on the position angle that ejectisome 20 will begin to locate at the fire of jet 22 indications.During this time the solenoid on helitank 33 actuators 35 47 feeds electric current, extinguishing chemical is sprayed towards flame through jet, and it is put out.
In this embodiment, detecting blowoff 10 can rotate in the 360 degree scopes on vertical X-axis, in fact Here it is the device drive motors 28 rotating shaft, be set up when the rotating range of fire detector 12 with jet 22 when identical, fire detector 12 can be found any fire that begins to take place in any position of its surveyed area DA.On the other hand, cylindricality ejectisome 20 can rotate in the 90 degree scopes on the Y-axis of level, the rotating shaft of Here it is spout drive motors 21.Consequently, jet 22 is actually along the control of X-axis and Y direction, can be towards any position spray fire extinguishing agent of surveyed area DA.
People have seen the purpose according to automatic fire sprinkler expection of the present invention, what add a word is, fire detector 12 can detect than a little bigger fire signals such as stove fires, in other words, the fire detector that the present invention makes can be differentiated the fire that begins in early days, when the sensitivity of smoke sensor arranges enough highly, just may put out a fire as soon as possible, compare with traditional sprinkler system, in this system, use smoke sensor or heat sensor, when the sensitivity of these sensors being transferred enough high, because the cigarette of cigarette, the temperature of indoor rising etc. all can cause the misoperation of system, and wrong execution incipient fire detects and fire extinguishing. Yet, increases in the present invention transducer sensitivity and only make and detect blowoff 10 and rotates immediately by device drive motors 28, and fire detector is failure to actuate, until it identifies infrared ray that fire sends above predetermined value; Therefore can effectively prevent misoperation.
The present invention can have diversified improvement design. For example, the measurement category that is subjected to light row 19 of fire detector 12, and the opereating specification of extinguishing chemical injector 13 ejectisomes 20 and jet 22 are generally considered to be 90 degree, and replace this scope can correspondingly be designed to 180 degree. And then, even the opereating specification of detection blowoff 10 also can be designed as 180 degree substantially. On the other hand, arranged with row at present by the photo detector on the light row 19, it also can be arranged with interleaved multirow. Arranging on the position of smoke sensor and can replace with heat sensor or to cigarette and hot all sensors of sensitivity. Equally, smoke sensor 36 also can replace with the infrared detector that increases, and they are identical by fire detector 12 The collector lens assembly, and a plurality of light-sensitive elements that arrange in whole zone in the detector form. On the other hand, can make and detect blowoff 10 constantly all in rotation, and not need other sensor, the detection range that is subjected to light row 19 is 180 degree preferably.
Claims (8)
1, be equipped with in the automatic fire sprinkler: a fire detector, this detector can be accepted the infrared ray from one of many light-sensitive elements, this light-sensitive element is corresponding with the above-mentioned infrared ray incidence angle of the assembly that passes through an infrared penetration wave filter and collector lens, an extinguishant jetting device, by an injection orienting device control, the output first time of a signal processor of this orienting device response, this signal processor then responds the detection position output of above-mentioned fire detector, make it aim at the initial direction of above-mentioned flame, the helitank that links to each other with above-mentioned injection apparatus is opened in the output second time by this signal processor, make extinguishing chemical from jar, come out to spray to initial flame through injection apparatus, it is characterized in that: above-mentioned signal processor can differentiate various because the initial disturbance of above-mentioned flame, light intensity on above-mentioned detection position changes, so that the above-mentioned output second time is provided.
2, according in the automatic fire sprinkler described in the claim 1, the identification device of above-mentioned signal processor comprises a device that is connected on the above-mentioned light-sensitive element, when the output of this detection position surpasses predetermined value, will produce a rectangular pulse as the above-mentioned output first time, also have a device that is connected on the above-mentioned impulse generator to be used for counting record pulse number in the given time in addition, when umber of pulse reaches predetermined value, will send output for the second time.
3, on the automatic fire sprinkler described in the claim 2, the light-sensitive element of above-mentioned fire detector is mounted to delegation and has constituted one and arranged by light, the impulse generator of this signal processor comprises, the waveform shaping circuit that a plurality of with corresponding above-mentioned light-sensitive element connects, the counting device of this signal processor comprises the counter that a plurality of and corresponding each this waveform shaping circuit connects, and this signal processor also comprises, a plurality of corresponding AND gate circuits of accepting output, this output is from two adjacent two light-sensitive elements of above-mentioned waveform shaping circuits difference, and the output that has an impulse generator to accept above-mentioned AND gate circuit produces the output that the preset count time is set.
4, according to the automatic fire sprinkler of claim 3, wherein this injection apparatus comprises a housing that rotates in vertical direction, and an injection apparatus that rotates in the horizontal direction arranged in this housing, above-mentioned guider comprises that first motor drives ejectisome and second motor in above-mentioned vertical axis drive shell on above-mentioned trunnion axis, on predetermined input is logical during electric current, above-mentioned first motor and second motor make its stall with the output of above-mentioned AND gate circuit.
5, according to the automatic fire sprinkler of claim 4, wherein above-mentioned predetermined input is the output from a smoke sensor, makes above-mentioned second motor feed electric current.
6, according to the automatic fire sprinkler of claim 5, wherein by a motor-drive circuit with this output action of this smoke sensor to above-mentioned second motor, and by this impulse generator and this motor-drive circuit with the output action of above-mentioned AND gate circuit to above-mentioned second motor.
7, according to the automatic fire sprinkler of claim 4, the output that wherein makes the above-mentioned AND gate circuit of first motor stall is to provide to this place through a memory and a contactor that has unlatching and closing contact, makes above-mentioned ejectisome rotate thus.
8, according to the automatic fire sprinkler of claim 7, wherein the device for opening of above-mentioned helitank comprises a solenoid, its action is relevant with above-mentioned contactor, and when the output of above-mentioned AND gate circuit was sent into first motor by this contactor, this solenoid fed electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85103353.9A CN1005679B (en) | 1985-05-14 | 1985-05-14 | Automatic fire extinguisher with infrared ray responsive type fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85103353.9A CN1005679B (en) | 1985-05-14 | 1985-05-14 | Automatic fire extinguisher with infrared ray responsive type fire detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85103353A true CN85103353A (en) | 1986-11-12 |
| CN1005679B CN1005679B (en) | 1989-11-08 |
Family
ID=4793134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85103353.9A Expired CN1005679B (en) | 1985-05-14 | 1985-05-14 | Automatic fire extinguisher with infrared ray responsive type fire detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1005679B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051958A (en) * | 2019-05-08 | 2019-07-26 | 嵊州润雅电子科技有限公司 | A kind of intelligent passageway smog alarm fire extinguishing terminal |
| CN110199406A (en) * | 2016-12-06 | 2019-09-03 | 三星Sdi株式会社 | Battery system |
-
1985
- 1985-05-14 CN CN85103353.9A patent/CN1005679B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110199406A (en) * | 2016-12-06 | 2019-09-03 | 三星Sdi株式会社 | Battery system |
| CN110051958A (en) * | 2019-05-08 | 2019-07-26 | 嵊州润雅电子科技有限公司 | A kind of intelligent passageway smog alarm fire extinguishing terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1005679B (en) | 1989-11-08 |
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Applicant after: Tokyo Disaster Prevention Equipment Co. Applicant before: Tekken Construction Co.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: TEKKEN CONSTRUCTION CO.,LTD. TO: TOKYO DISASTER PREVENTION EQUIPMENT CO.,LTD. |
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