CN103191536B - Gas-bottle-type automatic superfine-dry-powder fire-extinguishing system for vehicle - Google Patents
Gas-bottle-type automatic superfine-dry-powder fire-extinguishing system for vehicle Download PDFInfo
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Abstract
The invention relates to a gas-bottle-type automatic superfine-dry-powder fire-extinguishing system for a vehicle. The system comprises a fire extinguisher device and an actuating device and is characterized in that a charge valve opened toward the fire extinguisher device in a unitary direction is arranged at the top of the fire extinguisher device, and the charge valve is connected with a tee junction in the actuating device. The gas-bottle-type automatic superfine-dry-powder fire-extinguishing system for the vehicle has the advantages that a piston is driven to move by a pressure difference between a first cavity and a second cavity, such that the action of opening an air outlet and the action of opening a nozzle are combined into one action, thereby increasing the action reliability and the sealability when the action is not performed.
Description
Technical field
This patent belongs to the extinguishing device technical field in road vehicle, belongs to the A62C3/07 group of IPC classification number, particularly relates to the automobile-used ultra-fine dry powder automatic fire extinguishing system of a kind of gas storage bottle-type.
Background technology
Ultra-fine dry powder fire extinguishing is a kind of extinguishing method emerged in recent years, its principle is the volatile decomposition thing of the inorganic salts made dry up in powder, the free radical produced with fuel in combustion process or active group generation Chemical Inhibition and negative catalyst, make the chain reaction of burning interrupt and put out a fire.In addition, part of dilution oxygen and cooling effect is also had.Enter in protection zone by the gas in aerosol; improve gas gross in protection zone, reduce the ratio of oxygen in protection zone, when oxygen concentration is reduced to below 14% from 21% time; the combustion process of ordinary matter can stop, thus plays the effect of fire extinguishing.
At present, adopt the mode that the automatic fire extinguisher of ultra-fine dry powder generally adopts hot aerosol to put out a fire, namely cartridge bag is set in automatic fire extinguisher, the constituent of such as cartridge bag can be potassium nitrate, ammonium nitrate, cellulose, utilize cartridge bag rapidly chemical reaction time generate the instantaneous pressure of gaseous product the ultra-fine dry powder of storage all blown out, or can produce during the chemical reaction of cartridge bag own and form aerocolloidal material (mixture of particle and inert gas), form hot aerosol by above two kinds of modes, play fire extinguishing function.
But the mode of hot aerosol fire extinguishing has following problem: adopt hot aerosol fire extinguishing, for discharge ultra-fine dry powder blast after gas temperature can reach more than 800 DEG C, easily quadratic loss is caused to the material in guard plot.Especially, when misoperation appears in automatic fire extinguisher time, the high-temperature gas of release likely causes the combustible combustion in protection zone on the contrary, causes fire.
Chinese patent CN101474461B (day for announcing 2012.6.27) has announced a kind of self-extinguishing device for automobile, although this device have employed cold air sol mode and puts out a fire, the isolation between the extinguishing chemical storage chamber of this device and air is completed (description [0022] paragragh the 13rd row) by one side glue sealed paper.If stored in the long-term natural environment of this device, likely there is aging problem in sealed paper, poorly sealed, and extinguishing chemical easily makes moist caking, the serious mobility that have impact on when extinguishing chemical sprays from gap.
In addition, the starting drive of this extinguishing device is directly installed on extinguishing device, the startup of starting drive is fused by constant temperature pack, constant temperature pack loses the pulling force to drive rod, drive rod is under the resilient force of driving spring, inwardly flick, compression triangle start core, make the channels open that gas is discharged, gas in compressed gas chamber is discharged by the space of triangle start core periphery, piston moves down (the accompanying drawing direction with in this patent), and ultra-fine dry powder is taken out of by Compressed Gas.
The limitation of this Starting mode is adopted to be, because this starting drive is directly arranged on extinguishing device, 2,4,6,8 can be installed, but the triggering of whole system is as the criterion with the fusing of constant temperature pack, there is how many constant temperature pack, just can detect the condition of a fire of how many points.The position of constant temperature pack where, just can detect the condition of a fire where.But the position of constant temperature pack and quantity are subject to the restriction of starting drive after all, and a lot of constant temperature pack can not be had to be distributed in very wide scope, and investigative range is very limited.For the fire directly do not occurred in around extinguishing device, delay of response, directly cannot put out a fire within the very first time.
Except adopting method in above-mentioned document to start except extinguishing device, domesticly utilize temperature-sensitive wire in addition to start.The mode that temperature-sensitive wire starts may be used for hot aerosol fire extinguishing or cold air sol fire extinguishing.Which mainly utilizes variations in temperature, change the conductor resistance value in temperature-sensitive wire or the insulating barrier in wire is melted, thus make to form contact between two wires of original insulation, form short circuit current, thus the cartridge bag generation chemical reaction of hot aerosol, or utilize magnetic valve to open the air ventilation passage of cold air sol, finally realize fire extinguishing.But adopt now temperature-sensitive wire as the starting element of aerosol fire-extinguishing device, the temperature error reacted owing to causing temperature-sensitive wire is comparatively large, and be generally tens degree, the most accurate also will have tens degree, and precision when causing extinguishing device to start is lower.Thus finally cause the startup of extinguishing device to occur misoperation, there is the problem described in Third Nature section in background technology part.
And in existing self-extinguishing device for automobile, do not adopt manual start device, place one's entire reliance upon automatic Starting mode.Once automatically actuated mode lost efficacy, fire extinguishing system cannot use, thus delay fire extinguishing opportunity.
Summary of the invention
This patent provides a kind of gas storage bottle-type automobile-used ultra-fine dry powder automatic fire extinguishing system for solving in known technology the technical problem that exists, the action of this fire extinguishing system rationally reliable, sealing is tight.
The automobile-used ultra-fine dry powder automatic fire extinguishing system of a kind of gas storage bottle-type, comprise extinguishing device and starting drive, it is characterized in that, the top of described extinguishing device is provided with to the unidirectional charge valve opened of extinguishing device, and charge valve is connected with the threeway in starting drive.
This patent can also by the following technical solutions:
Preferably, described extinguishing device comprises pressurized stored gas chamber and extinguishing chemical storage chamber, pressurized stored gas chamber is communicated with extinguishing chemical storage chamber by venthole, a piston is provided with in pressurized stored gas chamber, pressurized stored gas chamber is divided into the first chamber and the second chamber by piston, first chamber is communicated with starting drive by charge valve, piston be provided with piston rod towards the second side, chamber, piston is provided with the passage in connection first chamber and the second chamber, described extinguishing chemical storage chamber is provided with shower nozzle, when injection apparatus cuts out, piston rod passes pressurized stored gas chamber and extend in extinguishing chemical storage chamber, and seal between the chamber wall in piston rod and pressurized stored gas chamber, the part of piston rod in extinguishing chemical storage chamber is set with powder delivery baffle plate, what the side of powder delivery baffle plate was direct or indirect is against on the shaft shoulder of piston rod, extinguishing chemical storage chamber and shower nozzle are isolated by powder delivery baffle plate, the opposite side of powder delivery baffle plate is also installed with reseting baffle on the piston rod, the external cylindrical surface of piston is provided with at least two seals circle, position, interval between multiple-sealed circle is corresponding with venthole.
Further preferred, described piston is against on the circular inner ledge in pressurized stored gas chamber near the side in the second chamber, and described upper cover of piston rod is equipped with compressibility spring, between the shaft shoulder of compressibility spring on piston rod and powder delivery baffle plate.By being provided with compressibility spring, when powder delivery baffle plate can be avoided directly to be set with on the piston rod, because piston has been against the problem crossing location that circular inner ledge causes.When piston is against after on circular inner ledge completely, powder delivery baffle plate can also extrude compressibility spring, realizes powder delivery baffle plate and isolates for the positiver sealing of extinguishing chemical storage chamber.In addition, owing to being by circular inner ledge to bear the total pressure difference of piston two sides in this programme, so the powder delivery baffle plate pressure be pressed in extinguishing chemical storage chamber is determined by the size of compressibility spring and kind and decrement.So also can be adjusted the pressure that powder delivery baffle plate is pressed in extinguishing chemical storage chamber by the kind of conversion compressibility spring.
Preferred further, described powder delivery baffle plate is directly against on the shaft shoulder of piston rod.In this programme, when injection apparatus cuts out, piston is arranged with in pressurized stored gas chamber in the expedite mode of Bidirectional slide, and pressurized stored gas does not arrange circular inner ledge in chamber, the difference of the active force in piston two faces, finally passes through powder delivery baffle effect completely in extinguishing chemical storage chamber.
Further preferred, described piston is against on the circular inner ledge in pressurized stored gas chamber near the side in the second chamber, and described upper cover of piston rod is equipped with size adjusting sleeve, between the shaft shoulder of size adjusting sleeve on piston rod and powder delivery baffle plate.The piston and circular inner ledge that may exist and the mistake orientation problem between powder delivery baffle plate and extinguishing chemical storage chamber is made up by the size adjusting sleeve changing different length.
Preferably, described extinguishing device also comprises automatic detection starter and manual starter, described threeway and extinguishing device UNICOM and seal with the external world, this threeway is also connected with automatic detection starter and manual starter, described automatic detection starter comprises the constant pressure pressure-reducing valve being located at threeway one end, this constant pressure pressure-reducing valve and threeway UNICOM are also towards opening away from threeway direction is unidirectional, and one end of constant pressure pressure-reducing valve opening direction is provided with spy fire tube, and the other end visiting fire tube is provided with plug.
In this programme, detect burning things which may cause a fire disaster by visiting fire tube, can be arranged to random length as required, the structure not by original starting drive limits, and overcomes the problem that original automatic fire extinguisher can only detect the condition of a fire around extinguishing device self.Meanwhile, add manual start device, without the need to etc. visit fire tube and leak, can manually boot when the artificial discovery condition of a fire, the startup for extinguishing device adds dual fail-safe, improves the reliability of system.
Preferred further, described manual starter is connected with threeway with check-valves by connecting line successively, described check-valves comprises check valve body, first triangle spool, union (screwed)bonnet (UB and hold out against joint, the right-hand member of described check valve body is provided with internal thread hole, described internal thread hole is connected with threeway by screw thread, the middle part of check valve body is provided with a through hole, the counterbore that the left end of check valve body is provided with external screw thread and is connected with through hole, described first triangle spool to be located in check valve body and to be held out against by spiral compression spring, the other end of spiral compression spring is against on the outer face of threeway, first triangle spool comprises the first flange portion and cross section is leg-of-mutton mandrel portion, flange portion is withstood by spiral compression spring, mandrel portion is positioned at above-mentioned through hole, first flange portion and the junction, mandrel portion of first triangle spool are set with sealing ring, the described joint that holds out against also is provided with the second flange portion, second flange portion side is the link be connected with the joint of connecting line, opposite side be radial ventilation end and hold out against first triangle spool hold out against end, described second flange portion right flank is against on the end face of check valve body, the union (screwed)bonnet (UB that the left surface of described second flange portion is threaded on check valve body compresses, hold out against coupling axis and be provided with main passage, main passage is provided with radial point passage at radial direction ventilation end.
Preferred further, described manual starter includes push button, pin is drawn in locking, press down sliding axle, gland, manual valve body, second triangle spool, spiral compression spring and manual starter pedestal, be provided with in described manual starter pedestal and the vent line of connecting line UNICOM and the valve body installing hole that is connected with valve body screw thread, described push button with press down sliding axle and be fixedly connected with, press down the locking that is provided with radial on sliding axle and draw pin, press down sliding axle and be provided with three-flange portion, press down sliding axle through the gland be threaded with manual valve body, and the upper side in three-flange portion is glanded and pushes down, the lower end pressing down sliding axle is also provided with and presses down termination for what press down second triangle spool, the middle part of described manual valve body is provided with the main exhaust hole suitable with the mandrel portion of triangle valve body, manual valve body is also provided with the radial direction communicated with main exhaust hole and divides steam vent, described second triangle vavle mandrel to be through in manual valve body, the bottom of manual valve body is provided with counterbore to hold the first flange portion of second triangle spool and the spiral compression spring for holding out against second triangle spool.
Further preferred, described manual starter pedestal is also provided with Pressure gauge.
The advantage that this patent has and good effect are:
Because this patent adopts technique scheme, moved under the pressure differential in the first chamber and the second chamber by piston, the action of opening venthole and the action of opening shower nozzle are synthesized an action, improves the reliability of action.And during injection apparatus closedown, withstand on all the time in extinguishing chemical storage chamber under the effect due to the gas pressure power difference of powder delivery baffle plate on the elastic force or piston of compressibility spring, thus ensure that sealing.
Accompanying drawing explanation
Fig. 1 is the structural representation of this patent embodiment 1;
Fig. 2 is the extinguishing device structural representation of embodiment 1;
Fig. 3 is the starting drive structural representation of embodiment 1;
Fig. 4 is the structural representation of threeway in embodiment 1 starting drive and check-valves, constant pressure reduction valve portion;
Fig. 5 is the manual starter structural representation in embodiment 1 starting drive;
Fig. 6 be in this patent embodiment 1 extinguishing device be in open mode schematic diagram.
Fig. 7 is the structural representation of this patent embodiment 2;
Fig. 8 is the structural representation of this patent embodiment 3;
In figure:
1, automatic detection starter; 11, constant pressure pressure-reducing valve; 111, constant pressure reduction valve body; 112, supported joint; 113, the third triangle spool; 1131, the first flange portion; 1132, mandrel portion; 114, spiral compression spring; 115, sealing ring; 116, spacing grommet; 12, fire tube is visited; 13, plug; 14, fire tube fixed leg is visited;
2, threeway;
3, check-valves; 31, check valve body; 32, union (screwed)bonnet (UB; 33, joint is held out against; 331, the second flange portion; 332, link; 333, radial ventilation end; 334, end is held out against; 335, main passage; 336, passage is divided; 34, first triangle spool;
4, connecting line;
5, manual starter; 51, push button; 52, pin is drawn in locking; 53, sliding axle is pressed down; 531, three-flange portion; 532, termination is pressed down; 54, gland; 55, manual valve body; 551, radial point steam vent; 56, manual starter pedestal; 57, vent line; 58, Pressure gauge; 59, second triangle spool.
61, shower nozzle; 62, powder delivery baffle plate; 63, the shaft shoulder; 64, piston rod; 65, passage; 66, charge valve; 661, fourth triangle spool; 67, the first chamber; 68, piston; 69, sealing ring; 610, venthole; 611, circular inner ledge; 612, pressurized stored gas chamber; 613, the second chamber; 614, extinguishing chemical storage chamber; 615, spiral compression spring; 616, reseting baffle; 617, size adjusting sleeve.
Detailed description of the invention
For summary of the invention, the Characteristic of this patent can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Embodiment 1:
The automobile-used ultra-fine dry powder automatic fire extinguishing system of a kind of gas storage bottle-type, comprise extinguishing device and starting drive, it is characterized in that, the top of extinguishing device is provided with to the unidirectional charge valve opened of extinguishing device, and charge valve is connected with the threeway in starting drive.
The structure of extinguishing device specifically consults Fig. 2, omits threeway in this figure, uses protective cap instead and covers on charge valve.
Extinguishing device comprises pressurized stored gas chamber 612 and extinguishing chemical storage chamber 614, the bottom of extinguishing chemical storage chamber is taper, pressurized stored gas chamber is communicated with extinguishing chemical storage chamber by venthole 610, a piston 68 is provided with in pressurized stored gas chamber, pressurized stored gas chamber is divided into the first chamber 67 and the second chamber, chamber 613, first by piston and is communicated with starting drive by charge valve 66, piston be provided with piston rod 64 towards the second side, chamber, piston is provided with the passage 65 in connection first chamber and the second chamber
Extinguishing chemical storage chamber is provided with shower nozzle 61, when injection apparatus cuts out, piston rod passes pressurized stored gas chamber and extend in extinguishing chemical storage chamber, and seal between the chamber wall in piston rod and pressurized stored gas chamber, the part of piston rod in extinguishing chemical storage chamber is set with powder delivery baffle plate 611, the side of powder delivery baffle plate is indirectly against on the shaft shoulder 63 of piston rod, extinguishing chemical storage chamber and shower nozzle are isolated by powder delivery baffle plate, the opposite side of powder delivery baffle plate is also installed with reseting baffle 616 on the piston rod, it is the baffle plate being arranged on piston rod end by screw in reseting baffle the present embodiment, except the present embodiment, also can be cutting thread on the piston rod, the nut that suit plate is on the piston rod threaded in piston rod end is fixed.The external cylindrical surface of piston is provided with at least two seals circle 69, and the position, interval between multiple-sealed circle is corresponding with venthole.
Piston is against on the circular inner ledge 611 in pressurized stored gas chamber near the side in the second chamber, upper cover of piston rod is equipped with compressibility spring, in the present embodiment, compressibility spring is spiral compression spring 615, between the shaft shoulder of compressibility spring on piston rod and powder delivery baffle plate.By being provided with compressibility spring, when powder delivery baffle plate can be avoided directly to be set with on the piston rod, because piston has been against the problem crossing location that circular inner ledge causes.When piston is against after on circular inner ledge completely, powder delivery baffle plate can also extrude compressibility spring, realizes powder delivery baffle plate and isolates for the positiver sealing of extinguishing chemical storage chamber.In addition; owing to being to bear the total pressure difference of piston two sides in this programme by circular inner ledge; so the powder delivery baffle plate pressure be pressed in extinguishing chemical storage chamber be by the size of compressibility spring and kind and decrement determine, just can adjust by the kind adjustment of adjustment compressibility spring the pressure that powder delivery baffle plate is pressed in extinguishing chemical storage chamber.
Starting drive can see the content in Fig. 3,4,5, figure only by the end of threeway, and charge valve and starting drive comprise automatic detection starter 1 and manual starter 5,
Also include threeway 2, threeway and extinguishing device UNICOM and seal with the external world, this threeway is also connected with automatic detection starter and manual starter, automatic detection starter comprises the constant pressure pressure-reducing valve 11 being located at threeway one end, this constant pressure pressure-reducing valve and threeway UNICOM are also towards opening away from threeway direction is unidirectional, one end of constant pressure pressure-reducing valve opening direction is provided with visits fire tube 12, and the other end visiting fire tube is provided with plug 13.Visit fire tube can as required, be fixed on the bulkhead of automobile engine by spy fire tube fixed leg 14.
Constant pressure pressure-reducing valve comprises constant pressure reduction valve body 111 and supported joint 112, the left end of constant pressure reduction valve body is provided with internal thread, constant pressure reduction valve body is connected with threeway right-hand member by the internal thread of its left end, the middle part of constant pressure reduction valve body is provided with a through hole, the counterbore that the right-hand member of constant pressure reduction valve body is provided with internal thread and is connected with through hole, supported joint is connected with constant pressure reduction valve body by the internal thread of constant pressure reduction valve body right-hand member, third triangle spool 113 to be located in constant pressure reduction valve body and to be held out against by spiral compression spring 114, the other end of spiral compression spring is against on the left side of supported joint, third triangle spool comprises the first flange portion 1131 and cross section is leg-of-mutton mandrel portion 1132, flange portion is withstood by spiral compression spring, mandrel portion is positioned at above-mentioned through hole, first flange portion and the junction, mandrel portion of the third triangle spool are set with sealing ring 115.Spacing grommet 116 is also provided with between the right side and supported joint of constant pressure reduction valve body, by changing the thickness of spacing grommet, the decrement of spiral compression spring can be changed, thus changing the size being subject to the elastic force on the right side of the third triangle spool, final change is visited in fire tube and the size of threeway internal pressure differences.
Manual starter 5 is connected with threeway with check-valves 3 by connecting line 4 successively, check-valves comprises check valve body 31, first triangle spool 34, union (screwed)bonnet (UB 32 and hold out against joint 33, the right-hand member of check valve body is provided with internal thread hole, internal thread hole is connected with threeway by screw thread, the middle part of check valve body is provided with a through hole, the counterbore that the left end of check valve body is provided with external screw thread and is connected with through hole, first triangle spool to be located in check valve body and to be held out against by spiral compression spring 114, the other end of spiral compression spring is against on the outer face of threeway, first triangle spool comprises the first flange portion 1131 and cross section is leg-of-mutton mandrel portion 1132, flange portion is withstood by spiral compression spring, mandrel portion is positioned at above-mentioned through hole, first flange portion and the junction, mandrel portion of first triangle spool are set with sealing ring 115,
Hold out against joint 33 and be also provided with the second flange portion 331, second flange portion side is the link 332 be connected with the joint of connecting line, opposite side be radial ventilation end 333 and hold out against first triangle spool hold out against end 334, second flange portion right flank is against on the end face of check valve body 31, the union (screwed)bonnet (UB that the left surface of the second flange portion is threaded on check valve body compresses, hold out against coupling axis and be provided with main passage 335, main passage is provided with radial point passage 336 at radial direction ventilation end.
Manual starter includes push button 51, locking is drawn pin 52, pressed down sliding axle 53, gland 54, manual valve body 55, second triangle spool 113, spiral compression spring 114 and manual starter pedestal 56,
Be provided with in manual starter pedestal and the vent line 57 of connecting line UNICOM and the valve body installing hole that is connected with valve body screw thread,
Push button with press down sliding axle and be fixedly connected with, press down the locking that is provided with radial on sliding axle and draw pin, press down sliding axle and be provided with three-flange portion 531, press down sliding axle through the gland be threaded with manual valve body, and the upper side in three-flange portion is glanded and pushes down, the lower end pressing down sliding axle is also provided with and presses down termination 532 for what press down second triangle spool 59
The middle part of manual valve body is provided with the main exhaust hole suitable with the mandrel portion of triangle valve body, manual valve body is also provided with the radial direction communicated with main exhaust hole and divides steam vent 551, second triangle vavle mandrel to the center being through manual valve body, the bottom of manual valve body is provided with counterbore to hold first flange portion and 1131 of second triangle spool 59 for holding out against the spiral compression spring 114 of second triangle spool.
Manual starter can need to be arranged in instrument plate according to user, or in drawer in face of copilot.
Manual starter pedestal is also provided with Pressure gauge 58, in order to the air pressure size in manual monitoring extinguishing device.
Starting drive detects burning things which may cause a fire disaster by visiting fire tube, random length can be arranged to as required, investigative range is wide, be quick on the draw, fire extinguisher of can adjusting the distance timely makes timely reaction compared with the condition of a fire at distant positions place, structure not by original starting drive limits, and overcomes the problem that original automatic fire extinguisher can only detect the condition of a fire around extinguishing device self.Meanwhile, add manual start device, without the need to etc. visit fire tube and leak, can manually boot when the artificial discovery condition of a fire, the startup for extinguishing device adds dual fail-safe, improves the reliability of system.
The operating principle of this patent is:
The installation process of this patent product is:
The first step is the step to pressurized stored gas interacvity air-filling.As shown in Figure 1, after be filled with gases at high pressure in pressurized stored gas chamber, gases at high pressure are filled with the first chamber and the second chamber through passage 69, and the first chamber is identical with the pressure in the second chamber.Owing to there being the existence of piston rod, the area of piston 68 upper surface is greater than the area of piston lower surface, so the pressure total value acting on piston upper surface is greater than the force value of lower surface.So piston is under this pressure differential effect, move down, until the lower surface of piston is against on circular inner ledge.Now, piston rod 64 and the powder delivery baffle plate 62 be set with above it also thereupon together with move down, in the process moved down, if the conical lower portion that powder delivery baffle plate encounters extinguishing chemical storage chamber stops, namely do not readvance, start the spiral compression spring 615 compressed between the shaft shoulder 63 and powder delivery baffle plate 62, spring is endowed certain elastic force, this elastic force is powder delivery baffle plate and is pressed in pressure size in extinguishing chemical storage chamber.Just and the position consistency of venthole, venthole and the first chamber, the second chamber are all kept apart by two seals circle just in position between two seals circle 69 when the pressure in the first chamber and the second chamber reaches setting pressure (such as 5Mpa) time on piston.
Be filled with gases at high pressure in extinguishing device after, and give protective cap on inflation valve bonnet, extinguishing device can store separately, transport.When automatic fire extinguishing system being installed on automobile to needs, again starting drive can be loaded onto, facilitate the shipping storage of this product like this.
Second step, be arranged in threeway 2 by not comprising union (screwed)bonnet (UB 32 with the check-valves holding out against joint 33, and automatic detection starter 1 and threeway are installed together, in the process of installing, third triangle spool 113 to be pressed on constant pressure reduction valve body 11 by spiral compression spring 114, because the other end of spiral compression spring is against on supported joint 112, so supported joint is being screwed in the process of constant pressure reduction valve body, namely spiral compression spring has been endowed initial elastic force.Namely this elastic force finally cause the air pressure pressure in threeway and visit the difference of the air pressure pressure in fire tube 12.
3rd step, is installed together threeway and extinguishing device, is taken off by protective cap from extinguishing device, and the fourth triangle spool of charge valve is depressed by the upper cover of threeway, and the sealing of extinguishing device is opened, and the air pressure pressure in threeway is consistent with the pressure in extinguishing device.Because the initial pressure visited in fire tube 12 is lower, in the process that threeway and extinguishing device are installed together or after this process, stressed on the right side of third triangle spool 113 is less than the stressed of left side, making a concerted effort to the right suffered by the third triangle spool, third triangle spool can move right, open the sealing between sealing ring 115 and constant pressure reduction valve body 111, high pressure gas in threeway is known from experience to the fiery Bottomhole pressure of spy, until gas in spy fire tube to equal in threeway gas for the third triangle spool gas pressure power left for the gas pressure power left of the third triangle spool and the elastic force sum of spiral compression spring 114, three reaches balance.And at check-valves 3 place, because second triangle spool 59 can only open towards threeway direction, be all self-closed towards the direction away from threeway, so now check-valves can prevent gases at high pressure from leaking from check-valves.
4th step, is connected manual starter 5 with connecting line 4, and by connecting line with hold out against joint 33 and be connected, and then joint will be held out against and union (screwed)bonnet (UB 32 is arranged on check valve body 31.Because first triangle spool can only open towards threeway direction, towards being all self-closed away from the direction of threeway, so in manual starter, as long as locking draws pin 52 not pull open, only to ensure gases at high pressure sealing herein.Holding out against joint and union (screwed)bonnet (UB is arranged in the process of check valve body, constantly be deep in check valve body in the continuous rotary course of the screw thread of union (screwed)bonnet (UB owing to holding out against joint, hold out against end 334 to start to contact with the left end of first triangle spool 34, and first triangle spool is moved right, thus open the sealing of sealing ring 115 and check valve body in check-valves, make the gases at high pressure in threeway can by the space between the mandrel portion of first triangle spool and the through hole of check valve body, and flow in connecting line 4 and manual starter 5 through undue passage 336 and main passage 335.Thus air pressure in Pressure gauge is consistent with the pressure in threeway and extinguishing device, Pressure gauge can show the pressure in extinguishing device.
Installation process is not limited to above sequence of steps, but at least should ensure that second step completed before the 3rd step and first the first step should complete.In addition, after starting drive can also having been assembled completely, then starting drive is arranged on extinguishing device.
After completing above-mentioned installation steps, the air pressure pressure in Pressure gauge, in connecting line, in threeway is consistent with the high pressure gas pressure in extinguishing device.Visit the gas in fire tube because have passed through the decompression of constant pressure pressure-reducing valve, its pressure is less than the air pressure pressure in extinguishing device, achieves relatively low pressure, extends the service life visiting fire tube.In addition, visit the low pressure of maintenance relatively and in extinguishing device in fire tube, avoid and visit fire tube because therein pressure is comparatively large, the misoperation that spy fire tube breaks at lower temperature and causes, improve the reliability of system.
Because this patent includes manual starter and automatic detection starter, so the operation of this patent comprises two kinds of patterns---manually boot pattern and automatic start-up mode.
Manually boot in pattern, when the personnel in vehicle find the condition of a fire, lead sealing can be destroyed, pull open locking and draw pin 52, locking draws pin namely to lose for the support of pressure sliding axle 53, then push button 51 is pressed, press down sliding axle to move down in gland 54, press down and press down the mandrel portion 1132 that termination 532 promotes first triangle spool 113 bottom sliding axle, when mandrel portion is pushed down, sealing between sealing ring and manual valve body is opened, gases at high pressure flow through threeway 2 successively, check-valves 3, connecting line 4, vent line 57, third triangle spool cross section is the space between leg-of-mutton mandrel portion and main exhaust hole, and spray through a radial point steam vent 551.Finally play the effect that pressure release starts.
In automatic start-up mode, when there is the condition of a fire in the engine cavity of vehicle, temperature rises, when visit in Fig. 1 fire tube had the position of circle to be melted by high-temperature gas by circle by or directly burn time, the gas visited in fire tube starts to discharge, and air pressure declines.Because the air pressure visited in fire tube declines, for the third triangle spool in constant pressure pressure-reducing valve, the elastic force that its right side is subject to and atmospheric pressure sum are less than the atmospheric pressure that its left side is subject to, third triangle spool moves right and compresses spiral compression spring, sealing between sealing ring and constant pressure reduction valve body is opened, gases at high pressure flow through threeway successively, cross section is space between leg-of-mutton mandrel portion and constant pressure reduction valve body, supported joint and spy fire tube, finally spray.Finally play the effect that pressure release starts.
As shown in Figure 6, no matter manually boot pattern or automatic start-up mode, after the starting drive of outside starts, because the fourth triangle spool in charge valve is depressed by threeway, charge valve is in the state that can outwards be vented at this moment, the gas in the first chamber is discharged rapidly through charge valve, because spy fire tube burns the sectional area that the hole is greater than steam vent, so the speed that the first chamber discharges gas is greater than the speed that the second chamber is vented in the first chamber by passage, so the speed that the pressure in the first chamber declines is greater than the speed that in the second chamber, pressure declines.When the pressure for piston in the first chamber is less than the pressure of the second chamber for piston, making a concerted effort of the pressure suffered by piston is that upwards piston starts to move up.Along with the movement of piston rod, powder delivery baffle plate be also reset baffle plate drive on move, depart from the conical lower portion of extinguishing chemical storage chamber 614, extinguishing chemical storage chamber communicated with shower nozzle 61.When the sealing ring on piston all moves to more than the height of venthole, the second chamber inner bag gases at high pressure are injected to extinguishing chemical storage chamber from venthole, promote extinguishing chemical and spray from shower nozzle, realize self-extinguishing.
Embodiment 2:
As shown in Figure 7, the present embodiment is from the different of embodiment 1, and powder delivery baffle plate is directly against on the shaft shoulder of piston rod.In this programme, when injection apparatus cuts out, piston is not against on circular inner ledge, because do not arrange circular inner ledge in pressurized stored gas chamber, the difference of the active force in piston two faces finally passes through piston rod, the shaft shoulder, powder delivery baffle effect completely in extinguishing chemical storage chamber.Adopt the advantage of this scheme to be, because powder delivery baffle effect to be the difference of the gas pressure power in piston two faces to the active force of extinguishing chemical storage chamber, active force during sealing is large, good sealing effect.
Embodiment 3:
As shown in Figure 8, the present embodiment is from the different of embodiment 1, and upper cover of piston rod is equipped with size adjusting sleeve 617, instead of the spiral compression spring in embodiment 1, between the shaft shoulder of size adjusting sleeve on piston rod and powder delivery baffle plate.The piston and circular inner ledge that may exist and the mistake orientation problem between powder delivery baffle plate and extinguishing chemical storage chamber is made up by the size adjusting sleeve changing different length.
Although be described the preferred embodiment of this patent by reference to the accompanying drawings above, but this patent is not limited to above-mentioned detailed description of the invention, above-mentioned detailed description of the invention is only schematic, be not restrictive, those of ordinary skill in the art is under the enlightenment of this patent, do not departing under the ambit that this patent aim and claim protect, a lot of form can also be made, such as: 1. the spiral compression spring in embodiment 1 or 3 is replaced with the compressibility such as resilient sleeve or butterfly spring spring; 2. or according to embodiment 2 develop, circular inner ledge is thinning, namely the close piston side of circular inner ledge and the distance of powder delivery baffle plate and extinguishing chemical storage chamber contact portion are less than the distance towards the second side, chamber one and powder delivery baffle plate and extinguishing chemical storage chamber contact portion of piston, make when injection apparatus cuts out, piston is not against on circular inner ledge; 3. developing on the basis of embodiment 3, also put spiral compression spring on the piston rod, the decrement of spring can be adjusted by changing size adjusting sleeve, thus pressure during adjustment powder delivery guard seal; 4. spy fire tube is made the form containing branch road, each position of enging cabin can be dispersed throughout.These all belong within the protection domain of this patent.
Claims (7)
1. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas storage bottle-type, comprise extinguishing device and starting drive, it is characterized in that, the top of described extinguishing device is provided with to the unidirectional charge valve opened of extinguishing device, charge valve is connected with the threeway in starting drive, described starting drive also comprises automatic detection starter and manual starter, described automatic detection starter comprises the constant pressure pressure-reducing valve being located at threeway one end, this constant pressure pressure-reducing valve and threeway UNICOM are also towards opening away from threeway direction is unidirectional, one end of constant pressure pressure-reducing valve opening direction is provided with spy fire tube, the other end visiting fire tube is provided with plug,
Described threeway and extinguishing device UNICOM and seal with the external world, this threeway is also connected with automatic detection starter and manual starter,
Described manual starter is connected with threeway with check-valves by connecting line successively, and described check-valves comprises check valve body, first triangle spool, union (screwed)bonnet (UB and holds out against joint,
The right-hand member of described check valve body is provided with internal thread hole, and described internal thread hole is connected with threeway by screw thread, and the middle part of check valve body is provided with a through hole, the counterbore that the left end of check valve body is provided with external screw thread and is connected with through hole,
Described first triangle spool to be located in check valve body and to be held out against by spiral compression spring, the other end of spiral compression spring is against on the outer face of threeway, first triangle spool comprises the first flange portion and cross section is leg-of-mutton mandrel portion, flange portion is withstood by spiral compression spring, mandrel portion is positioned at above-mentioned through hole, first flange portion and the junction, mandrel portion of first triangle spool are set with sealing ring
The described joint that holds out against also is provided with the second flange portion, second flange portion side is the link be connected with the joint of connecting line, opposite side be radial ventilation end and hold out against first triangle spool hold out against end, described second flange portion right flank is against on the end face of check valve body, the union (screwed)bonnet (UB that the left surface of described second flange portion is threaded on check valve body compresses, hold out against coupling axis and be provided with main passage, main passage is provided with radial point passage at radial direction ventilation end.
2. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas storage bottle-type as claimed in claim 1, it is characterized in that: described extinguishing device comprises pressurized stored gas chamber and extinguishing chemical storage chamber, pressurized stored gas chamber is positioned at extinguishing chemical storage chamber, pressurized stored gas chamber is communicated with extinguishing chemical storage chamber by venthole, a piston is provided with in pressurized stored gas chamber, pressurized stored gas chamber is divided into the first chamber and the second chamber by piston, first chamber is communicated with starting drive by charge valve, piston be provided with piston rod towards the second side, chamber, piston is provided with the passage in connection first chamber and the second chamber,
Described extinguishing chemical storage chamber is provided with shower nozzle, when injection apparatus cuts out, piston rod passes pressurized stored gas chamber and extend in extinguishing chemical storage chamber, and seal between the chamber wall in piston rod and pressurized stored gas chamber, the part of piston rod in extinguishing chemical storage chamber is set with powder delivery baffle plate, what the side of powder delivery baffle plate was direct or indirect is against on the shaft shoulder of piston rod, extinguishing chemical storage chamber and shower nozzle are isolated by powder delivery baffle plate, the opposite side of powder delivery baffle plate is also installed with reseting baffle on the piston rod, the external cylindrical surface of piston is provided with at least two seals circle, position, interval between multiple-sealed circle is corresponding with venthole.
3. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas storage bottle-type as claimed in claim 2, it is characterized in that: described piston is against on the circular inner ledge in pressurized stored gas chamber near the side in the second chamber, described upper cover of piston rod is equipped with compressibility spring, between the shaft shoulder of compressibility spring on piston rod and powder delivery baffle plate.
4. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas storage bottle-type as claimed in claim 2, it is characterized in that: described powder delivery baffle plate is directly against on the shaft shoulder of piston rod, piston is arranged with in pressurized stored gas chamber in the expedite mode of Bidirectional slide.
5. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas storage bottle-type as claimed in claim 2 or claim 3, it is characterized in that: described piston is against on the circular inner ledge in pressurized stored gas chamber near the side in the second chamber, described upper cover of piston rod is equipped with size adjusting sleeve, between the shaft shoulder of size adjusting sleeve on piston rod and powder delivery baffle plate.
6. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas storage bottle-type as claimed in claim 1, is characterized in that:
Described manual starter includes push button, locking is drawn pin, pressed down sliding axle, gland, manual valve body, second triangle spool, spiral compression spring and manual starter pedestal,
Be provided with in described manual starter pedestal and the vent line of connecting line UNICOM and the valve body installing hole that is connected with valve body screw thread,
Described push button with press down sliding axle and be fixedly connected with, press down the locking that is provided with radial on sliding axle and draw pin, press down sliding axle and be provided with three-flange portion, press down sliding axle through the gland be threaded with manual valve body, and the upper side in three-flange portion is glanded and pushes down, the lower end pressing down sliding axle is also provided with and presses down termination for what press down second triangle spool
The middle part of described manual valve body is provided with the main exhaust hole suitable with the mandrel portion of triangle valve body, manual valve body is also provided with the radial direction communicated with main exhaust hole and divides steam vent, described second triangle vavle mandrel to be through in manual valve body, the bottom of manual valve body is provided with counterbore to hold the first flange portion of second triangle spool and the spiral compression spring for holding out against second triangle spool.
7. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas storage bottle-type as claimed in claim 6, is characterized in that: described manual starter pedestal is also provided with Pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310111096.4A CN103191536B (en) | 2013-04-01 | 2013-04-01 | Gas-bottle-type automatic superfine-dry-powder fire-extinguishing system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310111096.4A CN103191536B (en) | 2013-04-01 | 2013-04-01 | Gas-bottle-type automatic superfine-dry-powder fire-extinguishing system for vehicle |
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| Publication Number | Publication Date |
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| CN103191536A CN103191536A (en) | 2013-07-10 |
| CN103191536B true CN103191536B (en) | 2015-03-04 |
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| CN201310111096.4A Expired - Fee Related CN103191536B (en) | 2013-04-01 | 2013-04-01 | Gas-bottle-type automatic superfine-dry-powder fire-extinguishing system for vehicle |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103432701A (en) * | 2013-09-05 | 2013-12-11 | 公安部天津消防研究所 | Automatic fire-extinguishing device using superfine dry powder |
| CN103990245A (en) * | 2014-06-09 | 2014-08-20 | 南京农业大学 | Small automatic household fire extinguisher |
| CN108371768A (en) * | 2018-01-29 | 2018-08-07 | 江苏锦恒汽车安全系统有限公司 | Vehicle cabin extinguishing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201684327U (en) * | 2010-02-20 | 2010-12-29 | 山东环绿康新材料科技有限公司 | Multi-nozzle stored-pressure superfine dry powder fire extinguishing apparatus |
| CN203196171U (en) * | 2013-04-01 | 2013-09-18 | 天广消防（天津）有限公司 | Gas bomb type automatic superfine dry powder fire extinguishing system for vehicles |
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2013
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201684327U (en) * | 2010-02-20 | 2010-12-29 | 山东环绿康新材料科技有限公司 | Multi-nozzle stored-pressure superfine dry powder fire extinguishing apparatus |
| CN203196171U (en) * | 2013-04-01 | 2013-09-18 | 天广消防（天津）有限公司 | Gas bomb type automatic superfine dry powder fire extinguishing system for vehicles |
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