CN205516080U - But quick automatic carbon dioxide fires datonation -inhibition system - Google Patents
But quick automatic carbon dioxide fires datonation -inhibition system Download PDFInfo
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- CN205516080U CN205516080U CN201620317253.6U CN201620317253U CN205516080U CN 205516080 U CN205516080 U CN 205516080U CN 201620317253 U CN201620317253 U CN 201620317253U CN 205516080 U CN205516080 U CN 205516080U
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Abstract
The utility model discloses a but quick automatic carbon dioxide fires datonation -inhibition system, including the explosion flame sensor, this ampere of datonation -inhibition device control ware of type, double this ampere of DC power supply of flame proof and the datonation -inhibition unit of carbon dioxide, as combustible gas, during the dust explosion occurence of failure, the automatic explosion flame signal of surveying of explosion flame sensor, convert the electrical signal input controller into, the controller is through the operation, judge, output control signal triggers the datonation -inhibition unit of carbon dioxide, the datonation -inhibition unit of carbon dioxide is opened fast, spray compression state's carbon dioxide, it presses down the screen burst barrier to form high energy, restrain explosion flame, but this fires datonation -inhibition system automatic identification explosion flame information fast to can sprinkle out the explosion of carbon dioxide in order to restrain places emergences such as combustible gas, dust rapidly, have the characteristics rapid, clean, the environmental protection of reacting, datonation -inhibition reliable, application scope is wide.
Description
Technical field
This utility model belongs to fuel gas and dust blast prevention and control field, is specifically related to a kind of fast automatic carbon dioxide combustion and explosion suppression system.
Background technology
In imflammable gas, dust market segment, space, industrial market is huge.According to incompletely statistics, current China has more than the business of 60,000 enterprises and is directed to the production of industry imflammable gas dust, stores, transports.In recent years, there occurs a lot of gas, dust explosion accident, cause huge life and property loss.
Existing datonation-inhibition equipment is mainly made up of detector, controller and explosion suppressor, and wherein explosion suppressor employing water or dry powder are as firing-fighting medium, when explosion time occur, by the detection of detector, passing information to controller, controller triggers explosion suppressor, and explosion suppressor sprays water outlet or dry powder is put out a fire.This type of datonation-inhibition equipment is primarily present following defect:
A, the interference to detector such as light, sunlight, electrostatic can not be got rid of；
B, speed of action are slow, are mainly used in fire extinguishing, and suppression explosive effect is poor；
C, employing dry powder or water, as firing-fighting medium, can destroy use environment, and be not easily cleaned, easily electromechanical equipment be caused damage.
Summary of the invention
In view of this, the purpose of this utility model be to provide a kind of be swift in response, safety and the high fast automatic carbon dioxide combustion and explosion suppression system of cleannes.
For reaching above-mentioned purpose, this utility model following technical scheme of offer: a kind of fast automatic carbon dioxide combustion and explosion suppression system, including detector, controller, explosion suppressor and power supply, described detector is connected with controller, described controller is connected with explosion suppressor, and described power supply is connected with controller；Described detector is explosive flame sensor, and including base, upper cover and the window structure of tubular, described upper cover is connected formation one cavity with base；Described window structure is arranged at cavity front end, is fixedly installed two ultraviolet induction modules in described cavity, described on cover and be provided with light hole, two ultraviolet induction modules by window structure detection through the ultraviolet light of light hole；Described explosion suppressor is the datonation-inhibition unit of carbon dioxide, including the shower nozzle being sequentially connected with, air jet pipe, opens device and carbon dioxide air accumulator soon, and described air jet pipe is connected by ring flange between device with opening soon.
Further, it is provided with, between base and the upper cover in described explosive flame sensor, the first sealing ring playing sealing function.
Further, described upper cover includes the outer housing of tubular and is fixed on the end cap at outer housing top, and described end cap includes annular end tegmental wall and is fixed on end cap wall front end and forms the end face of the first bathtub construction with end cap wall, and described light hole is arranged on end face.
Further, described window structure includes the second sealing ring and transparent glass, and described annular end tegmental wall arranges a cannelure, and described second sealing ring is partially embedded in cannelure, and described transparent glass and the second sealing ring are close to.
Further, the front end of described base is the second bathtub construction, and described second bathtub construction forms ultraviolet induction module placed cavity with transparent glass.
Further, described end face is additionally provided with several through holes.
Further, described device of opening soon is provided with charge valve and Pressure gauge.
Further, described carbon dioxide air accumulator is provided with over-pressure safety device.
Further, described shower nozzle includes the nozzle of several adjustable angle.
Further, described controller is intrinsic safety type explosion suppression device controller, and described power supply is explosion-suppression and intrinsic safety DC source.
The beneficial effects of the utility model are: this combustion and explosion suppression system can fast automatic identification explosive flame information; and the blast that carbon dioxide occurs can be sprayed out rapidly with the suppression place such as imflammable gas, dust; improve gas, the safety of dusty industrial process, effectively protect people's lives and properties from loss；Explosive flame sensor in system is insensitive to interference information such as sunlight, light, electrostatic, can reliable detection explosive flame information；Meanwhile, it is high that this sensor also has automatic fault selftesting, antivibration and automatic cleaning function, good reliability and automaticity.Datonation-inhibition unit uses carbon dioxide as datonation-inhibition medium, is swift in response and datonation-inhibition persistent period length (can reach more than 2000ms), has cleaning, environmental protection, will not enter electromechanical equipment, is not required to the feature of cleaning after action；Also there is overvoltage and under-voltage protection function, the self-security of system has been effectively ensured；Datonation-inhibition reliably, applied widely.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, this utility model provides drawings described below to illustrate:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structure diagram of explosive flame sensor；
Fig. 3 is the axonometric chart of Fig. 2；
Fig. 4 is the structure diagram of the datonation-inhibition unit of carbon dioxide.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in the figure, fast automatic carbon dioxide combustion and explosion suppression system in this utility model, including detector 1, controller 2, explosion suppressor 3 and power supply 4, described detector 1 is connected with controller 2, described controller 2 is connected with explosion suppressor 3, and described power supply 4 is connected with controller 2；Described detector 1 is explosive flame sensor, and including base 101, upper cover 102 and the window structure of tubular, described upper cover 102 is connected formation one cavity with base 101；Described window structure is arranged at cavity front end, is fixedly installed two ultraviolet induction modules in described cavity, and described upper cover 102 is provided with light hole 103, and two ultraviolet induction modules pass through the ultraviolet light of light hole 103 by window structure detection；Described explosion suppressor 3 is the datonation-inhibition unit of carbon dioxide, including the shower nozzle 301 being sequentially connected with, air jet pipe 302, opens device 303 and carbon dioxide air accumulator 304 soon, and described air jet pipe 302 is connected by ring flange 305 between device 303 with opening soon.
Controller 2 in the present embodiment is intrinsic safety type explosion suppression device controller, and power supply 4 is explosion-suppression and intrinsic safety DC source.Concrete, when imflammable gas, dust explosion occur, explosive flame sensor is for being converted into the signal of telecommunication by explosive flame information, and the signal of telecommunication is passed to intrinsic safety type explosion suppression device controller, the blast signal of telecommunication received is calculated, judges by controller, and then unit datonation-inhibition to carbon dioxide sends Trig control signal, quickly sprays out the datonation-inhibition medium of carbon dioxide by controlling the datonation-inhibition unit of carbon dioxide, to form datonation-inhibition barrier, it is achieved to imflammable gas, the suppression of dust explosion.
Various ac voltage signals are converted into direct low voltage signal by the explosion-suppression and intrinsic safety DC source in the present embodiment, and power for intrinsic safety type explosion suppression device controller, and controller is then by being explosive flame sensor power with the connection line of explosive flame sensor.
In the present embodiment, the upper cover 102 of explosive flame sensor is connected formation one cavity with base 101, the first sealing ring 104 playing sealing function it is provided with between described base 101 and upper cover 102, upper cover 102 and base 101 use threaded and lock with marking closely screw, prevent from loosening, improve the comprehensive sealing performance of shell.
Be used for detonation by influence flame information in the present embodiment is double ultraviolet induction modules, only just can be converted into the signal of telecommunication when two ultraviolet phototubes all detect explosive flame ultraviolet light, be effectively increased the interference free performance of equipment.
Concrete, under far ultraviolet irradiation in explosive flame, the energy of the incident deep ultraviolet photon of Electron absorption in double ultraviolet light induced module photocathodes and escape photocathode surface, to anode movement under cathode electric field effect, thus produce the signal of telecommunication, process through circuit module is transported, and exports the signal of telecommunication, reaches to detect the purpose of explosive flame.Light hole 103 is used for detonation by influence flame ultraviolet band, and prevents external impurities from entering sensor internal.The spectral response of the ultraviolet light photo induction module used is 185～260nm, and in the scope of extreme ultraviolet light, the ultraviolet band of sunlight terminates in that 290nm, infrared band terminate in 130um, and therefore this ultraviolet phototube is insensitive to sunlight.The spectral band of illumination light-emitting is from the beginning of 300nm, and not within the investigative range of Ultraviolet sensor, therefore this explosive flame sensor capacity of resisting disturbance is strong.
Store in carbon dioxide air accumulator in the present embodiment 304 is the liquid carbon dioxide with certain pressure, drives device 303 soon for receiving triggering signal, quickly opens and by carbon dioxide air accumulator 304 and air jet pipe 302 UNICOM；It is arranged on the shower nozzle 301 of air jet pipe 302 end in horn mouth porous water conservancy diversion shape, ensures that the carbon dioxide sprayed out can form good datonation-inhibition barrier.When there being explosion accident to occur, drive device 303 soon and receive triggering signal and open rapidly, by air jet pipe 302 and shower nozzle 301, the liquid carbon dioxide in carbon dioxide air accumulator 304 is sprayed out, form datonation-inhibition barrier, to suppress explosive flame.
This explosion suppressor 3 can not only fast and effeciently suppress detonation propagation, also general flame combustion is also had good inhibition.Use carbon dioxide as datonation-inhibition medium, not only there is cleaning, environmental protection, without the advantage of cleaning after using, also there is datonation-inhibition function persistent period length efficient, datonation-inhibition (can reach more than 2000ms), the feature that adjacent electromechanical equipment will not be impacted or damages, applied widely.
In the present embodiment, described upper cover 102 includes the outer housing of tubular and is fixed on the end cap at outer housing top, described end cap includes annular end tegmental wall 105 and is fixed on end cap wall 105 front end and forms the end face of the first bathtub construction with end cap wall 105, and described light hole 103 is arranged on end face.
In the present embodiment, described window structure includes the second sealing ring 106 and transparent glass 107, and described annular end tegmental wall 105 arranges a cannelure, and described second sealing ring 106 is partially embedded in cannelure, and described transparent glass 107 is close to the second sealing ring 106.
Base 101 front end in the present embodiment is the second bathtub construction, and described second bathtub construction and transparent glass 107 form ultraviolet induction module placed cavity 108.The surrounding of two ultraviolet induction modules is provided with rubber protecting jacket, and such design can ensure that sensor has good resistance to shock.
As the further improvement of such scheme, it is loose structure that described end face is additionally provided with several through holes 109, i.e. end face, it is ensured that it has certain anti-pounds function.
As the further improvement of such scheme, described annular end tegmental wall 105 is provided with external hole 110, water pipe or the pore of outside can be connected, automatically sensor glass window is carried out, it is ensured that light transmission.
As the further improvement of such scheme, described device 303 of opening soon is provided with charge valve 306 and Pressure gauge 307.Charge valve 306 can be used for being filled with liquid carbon dioxide and nitrogen to carbon dioxide air accumulator 304 inside; Pressure gauge 307 can show inflation and properly functioning time pressure size within carbon dioxide air accumulator 304; and when hypotony, carry out open circuit protection and report to the police, to improve the safety of equipment.
As the further improvement of such scheme, described carbon dioxide air accumulator 304 is provided with over-pressure safety device 308；When carbon dioxide air accumulator 304 internal pressure is too high, over-pressure safety device 308 can automatically turn on, and regulates pressure size, to ensure system security.
As the further improvement of such scheme, described shower nozzle 301 includes the nozzle of several adjustable angle.To the quantity of shower nozzle 301 top nozzle, planform, perforate mode and spray angle and be designed, to realize flow velocity and the regulation of mist formation shape and control, thus improve the spraying area of carbon dioxide, reach the purpose of the effectiveness of explosion suppression of raising system.
This carbon dioxide combustion and explosion suppression system uses the explosive flame sensor of double ultraviolet flame principle, low-profile, simple shape are easily processed, the interference such as sunlight, light, electrostatic, electric welding can not only be avoided, explosive flame information can also be detected rapidly within 1ms, the spectral response of ultraviolet light photo induction module is 185～260nm, and capacity of resisting disturbance is strong；Technical foundation is provided for accurate, reliable and quick detection blast information.It addition, this sensor is to carry out all of circuit design according to the standard-required of " ia " explosive-proof grade: the restriction etc. in terms of three grades of fail safe, the protection of circuit current limiting pressure-limiting, inductance and electric capacity, reliability is high.
The datonation-inhibition unit of carbon dioxide in native system has the feature of quick action, carbon dioxide can be sprayed out rapidly in 8ms after receiving triggering signal, form datonation-inhibition barrier, the blast that suppression imflammable gas/dust explosion place occurs, thus improve imflammable gas, the safety of dusty industrial process, make the people's lives and property from loss.
The best of breed of this fast automatic carbon dioxide combustion and explosion suppression system is to be made up of 1 explosive flame sensor, 1 intrinsic safety type explosion suppression device controller, 1 explosion-suppression and intrinsic safety DC source and 2 datonation-inhibition unit of carbon dioxide, 1 rosette and communication shielded cable.When having fuel gas, dust explosion accident to occur, explosive flame sensor detects explosive flame signal automatically, be converted to signal of telecommunication input controller, controller is through computing, judgement, output control signal triggers the datonation-inhibition unit of carbon dioxide, and the datonation-inhibition unit of carbon dioxide is quickly opened, the carbon dioxide of jet compression state, form the datonation-inhibition barrier of high energy, suppress explosive flame.
Finally illustrate is, preferred embodiment above is only in order to illustrate the technical solution of the utility model and unrestricted, although this utility model being described in detail by above preferred embodiment, but skilled artisan would appreciate that, in the form and details it can be made various change, without departing from this utility model claims limited range.
Claims (10)
1. a fast automatic carbon dioxide combustion and explosion suppression system, including detector, controller, explosion suppressor and power supply, described detector is connected with controller, and described controller is connected with explosion suppressor, and described power supply is connected with controller；It is characterized in that: described detector is explosive flame sensor, including base, upper cover and the window structure of tubular, described upper cover is connected formation one cavity with base；Described window structure is arranged at cavity front end, is fixedly installed two ultraviolet induction modules in described cavity, described on cover and be provided with light hole, two ultraviolet induction modules by window structure detection through the ultraviolet light of light hole；Described explosion suppressor is the datonation-inhibition unit of carbon dioxide, including the shower nozzle being sequentially connected with, air jet pipe, opens device and carbon dioxide air accumulator soon, and described air jet pipe is connected by ring flange between device with opening soon.
Fast automatic carbon dioxide combustion and explosion suppression system the most according to claim 1, it is characterised in that: it is provided with the first sealing ring playing sealing function between base and the upper cover in described explosive flame sensor.
Fast automatic carbon dioxide combustion and explosion suppression system the most according to claim 1, it is characterized in that: described upper cover includes the outer housing of tubular and is fixed on the end cap at outer housing top, described end cap includes annular end tegmental wall and is fixed on end cap wall front end and forms the end face of the first bathtub construction with end cap wall, and described light hole is arranged on end face.
Fast automatic carbon dioxide combustion and explosion suppression system the most according to claim 3, it is characterized in that: described window structure includes the second sealing ring and transparent glass, on described annular end tegmental wall, a cannelure is set, described second sealing ring is partially embedded in cannelure, and described transparent glass and the second sealing ring are close to.
Fast automatic carbon dioxide combustion and explosion suppression system the most according to claim 4, it is characterised in that: the front end of described base is the second bathtub construction, and described second bathtub construction forms ultraviolet induction module placed cavity with transparent glass.
Fast automatic carbon dioxide combustion and explosion suppression system the most according to claim 3, it is characterised in that: it is additionally provided with several through holes on described end face.
Fast automatic carbon dioxide combustion and explosion suppression system the most according to claim 1, it is characterised in that: described device of opening soon is provided with charge valve and Pressure gauge.
Fast automatic carbon dioxide combustion and explosion suppression system the most according to claim 1, it is characterised in that: described carbon dioxide air accumulator is provided with over-pressure safety device.
Fast automatic carbon dioxide combustion and explosion suppression system the most according to claim 1, it is characterised in that: include the nozzle of several adjustable angle on described shower nozzle.
10. according to the fast automatic carbon dioxide combustion and explosion suppression system described in any one of claim 1～9, it is characterised in that: described controller is intrinsic safety type explosion suppression device controller, and described power supply is explosion-suppression and intrinsic safety DC source.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620317253.6U CN205516080U (en) | 2016-04-15 | 2016-04-15 | But quick automatic carbon dioxide fires datonation -inhibition system |
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| CN201620317253.6U CN205516080U (en) | 2016-04-15 | 2016-04-15 | But quick automatic carbon dioxide fires datonation -inhibition system |
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| CN205516080U true CN205516080U (en) | 2016-08-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105664400A (en) * | 2016-04-15 | 2016-06-15 | 中煤科工集团重庆研究院有限公司 | Fast and automatic carbon dioxide combustion and explosion suppression system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105664400A (en) * | 2016-04-15 | 2016-06-15 | 中煤科工集团重庆研究院有限公司 | Fast and automatic carbon dioxide combustion and explosion suppression system |
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