CN103191536A - 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 the 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 bomb type.
Background technology
The ultra-fine dry powder fire extinguishing is a kind of extinguishing method that emerges in recent years, its principle is to make the volatility analyte of the inorganic salts in the powder dry up, with free radical or active group generation Chemical Inhibition and the negative catalyst that fuel in the combustion process produces, make the chain reaction of burning interrupt and put out a fire.In addition, also have part to dilute oxygen and cooling effect.Enter in the protection zone by the gas in the aerosol; improved gas gross in the protection zone, reduced the ratio of oxygen in the protection zone, when oxygen concentration is reduced to 14% following the time from 21%; the combustion process of ordinary matter can stop, thereby plays the effect of fire extinguishing.
At present, the automatic fire extinguisher of employing ultra-fine dry powder generally adopts the mode of hot aerosol fire extinguishing, cartridge bag namely is set in automatic fire extinguisher, for example the constituent of cartridge bag can be potassium nitrate, ammonium nitrate, cellulose, utilize instantaneous pressure that cartridge bag generates gaseous product rapidly during chemical reaction that the ultra-fine dry powder of storage is all blown out, perhaps 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 dual mode, play the fire extinguishing effect.
But the mode of hot aerosol fire extinguishing has following problem: adopt the hot aerosol fire extinguishing, can reach 800 ° more than the C for gas temperature after the blast that discharges ultra-fine dry powder, easily the material in the guard plot is caused quadratic loss.Especially when misoperation appearred in automatic fire extinguisher, the high-temperature gas of release might cause the combustible burning in the protection zone on the contrary, causes fire.
Chinese patent CN101474461B(day for announcing 2012.6.27) announced a kind of self-extinguishing device for automobile, though this device has adopted the cold air sol mode to put out a fire, the extinguishing chemical storage chamber of this device and the isolation between the atmosphere are finished (specification [0022] paragragh the 13rd row) by single face glue sealed paper.If store in the long-term natural environment of this device, the problem that sealed paper might occur wearing out, poorly sealed, the extinguishing chemical caking that makes moist has easily seriously influenced the flowability when extinguishing chemical sprays from the slit.
In addition, the starting drive of this extinguishing device is directly installed on the extinguishing device, the startup of starting drive is by the fusing of constant temperature group sheet, and the forfeiture of constant temperature group sheet is to the pulling force of drive rod, and drive rod is under the resilient force of driving spring, inwardly flick, compression triangle start core, the passage that makes gas discharge is unimpeded, and the gas in the compressed gas chamber is discharged by the space of triangle start core periphery, piston moves down (with the accompanying drawing direction in this patent), makes Compressed Gas that ultra-fine dry powder is taken out of.
Adopt the limitation of this Starting mode to be, because this starting drive is directly to be installed on the extinguishing device, can install 2,4,6,8, but being fusing with constant temperature group sheet, the triggering of whole system is as the criterion, how many constant temperature group sheets are arranged, just can survey the condition of a fire of what points.The position of constant temperature group sheet where, just can survey the condition of a fire where.But the position of constant temperature group sheet and quantity are subjected to the restriction of starting drive after all, can not have a lot of constant temperature group sheets to be distributed in the very wide scope, and investigative range is very limited.For directly not occurring in extinguishing device fire on every side, delay of response can't directly fire extinguishing in the very first time.
Method in adopting above-mentioned document starts the extinguishing device, and the domestic temperature-sensitive lead that utilizes in addition starts.The mode that the temperature-sensitive lead starts can be used for hot aerosol fire extinguishing or cold air sol fire extinguishing.This mode mainly is to utilize variations in temperature, change the conductor resistance value in the temperature-sensitive lead or make the insulating barrier in the lead melt, thereby make between two leads of original insulation and constitute the contact, form short circuit current, thereby the cartridge bag generation chemical reaction of hot aerosol, perhaps utilize magnetic valve to open the gas communication passage of cold air sol, the final realization put out a fire.But, adopt the temperature-sensitive lead as the starting element of aerosol fire-extinguishing device now, because the temperature error that causes the temperature-sensitive lead to react is bigger, be generally tens degree, the most accurate also will have tens degree, and the precision when causing extinguishing device to start is lower.Thereby finally cause the startup of extinguishing device misoperation to occur, the described problem of the 3rd paragragh in the background technology part occurs.
And, in the existing self-extinguishing device for automobile, do not adopt manual start device, place one's entire reliance upon automatic Starting mode.In case automatically actuated mode lost efficacy, fire extinguishing system can't be used, thereby incur loss through delay fire extinguishing opportunity.
Summary of the invention
This patent provides a kind of gas bomb type automobile-used ultra-fine dry powder automatic fire extinguishing system for solving the technical problem that exists in the known technology, and the action of this fire extinguishing system is reasonable reliably, sealing is tight.
The automobile-used ultra-fine dry powder automatic fire extinguishing system of a kind of gas bomb type comprises extinguishing device and starting drive, it is characterized in that, the top of described extinguishing device is provided with to the unidirectional charge valve of opening of extinguishing device, and charge valve is connected with threeway in the starting drive.
This patent can also be by the following technical solutions:
Preferably, described extinguishing device comprises pressurized stored gas chamber and extinguishing chemical storage chamber, the pressurized stored gas chamber is communicated with the extinguishing chemical storage chamber by venthole, be provided with a piston in the pressurized stored gas chamber, the pressurized stored gas chamber is divided into first chamber and second chamber by piston, first chamber is communicated with starting drive by charge valve, piston be provided with piston rod towards second chamber, one side, be provided with the passage that is communicated with first chamber and second chamber at piston, described extinguishing chemical storage chamber is provided with shower nozzle, when injection apparatus cuts out, piston rod passes the pressurized stored gas chamber and extend in the extinguishing chemical storage chamber, and seal between the chamber wall in piston rod and pressurized stored gas chamber, the part of piston rod in the extinguishing chemical storage chamber is set with the powder delivery baffle plate, on the direct or indirect shaft shoulder that is against piston rod of one side of powder delivery baffle plate, the powder delivery baffle plate is isolated extinguishing chemical storage chamber and shower nozzle, the opposite side of powder delivery baffle plate also is installed with reseting baffle on piston rod, the external cylindrical surface of piston is provided with two seals circle at least, and the position, interval between the multiple-sealed circle is corresponding with venthole.
Further preferred, described piston is against on the annular inward flange in pressurized stored gas chamber near the side in second chamber, and described upper cover of piston rod is equipped with the compressibility spring, and the compressibility spring is between the shaft shoulder on the piston rod and powder delivery baffle plate.By being provided with the compressibility spring, when can avoid directly being sleeved on the powder delivery baffle plate on the piston rod, the problem of crossing the location that causes because piston has been against on the annular inward flange.After piston was against on the annular inward flange fully, the powder delivery baffle plate can also push the compressibility spring, realized that the powder delivery baffle plate is for the positiver sealing isolation of extinguishing chemical storage chamber.In addition, owing to be the total pressure difference of being born the piston two sides by annular inward flange in this programme, be to be determined by the size of compressibility spring and kind and decrement so the powder delivery baffle plate is pressed in pressure on the extinguishing chemical storage chamber.So also can adjust the pressure that the powder delivery baffle plate is pressed in the extinguishing chemical storage chamber by the kind of conversion compressibility spring.
Further preferred, described powder delivery baffle plate directly is against on the shaft shoulder of piston rod.In this programme, when injection apparatus cuts out, piston with the expedite mode of two-way slip arrange with the pressurized stored gas chamber in, annular inward flange is not set in the pressurized stored gas chamber, the active force of two faces of piston poor, at last fully by the powder delivery baffle effect on the extinguishing chemical storage chamber.
Further preferred, described piston is against on the annular inward flange in pressurized stored gas chamber near the side in second chamber, and described upper cover of piston rod is equipped with the adjusted size sleeve, and the adjusted size sleeve is between the shaft shoulder on the piston rod and powder delivery baffle plate.Remedy the piston that may exist and the mistake orientation problem between annular inward flange and powder delivery baffle plate and the extinguishing chemical storage chamber by the adjusted size sleeve of 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 also is connected with automatic detection starter and manual starter, described automatic detection starter comprises the constant pressure pressure-reducing valve that is located at threeway one end, this constant pressure pressure-reducing valve and threeway UNICOM and court open away from the threeway direction is unidirectional, and the end that constant pressure pressure-reducing valve is opened direction is provided with the spy fire tube, and the other end of visiting fire tube is provided with plug.
In this programme, survey burning things which may cause a fire disaster by visiting fire tube, can be arranged to random length as required, be not subjected to the structural limitations of original starting drive, overcome the problem that original automatic fire extinguisher can only be surveyed extinguishing device self condition of a fire on every side.Simultaneously, increase manual start device, the spy fire tube such as need not and leak, can manually boot when finding the condition of a fire artificial, for the startup of extinguishing device has increased dual fail-safe, improved the reliability of system.
Further preferred, described manual starter links to each other 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 left end of check valve body is provided with external screw thread and the counterbore that links to each other with through hole, described first triangle spool is located in the check valve body and by spiral compression spring and holds out against, the other end of spiral compression spring is against on the outer face of threeway, first triangle spool comprises that first flange portion and cross section are 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 of first triangle spool and mandrel portion junction are set with sealing ring, the described joint that holds out against also is provided with second flange portion, second flange portion, one side is the link that is connected with the joint of connecting line, the hold out against end of opposite side for radially ventilating and hold and hold out against first triangle spool, the 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 the check valve body compresses, hold out against coupling axis and be provided with main passage, main passage is provided with radially branch passage at ventilation end radially.
Further preferred, 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 the described manual starter pedestal and the vent line of connecting line UNICOM and the valve body installing hole that is threaded with valve body, described push button with press down sliding axle and fixedly connected, pin is drawn in the locking that is provided with that presses down on the sliding axle radially, press down sliding axle and be provided with the 3rd flange portion, press down sliding axle and pass the gland that is threaded with manual valve body, and the upper side of the 3rd flange portion is glanded to be pushed down, the lower end that presses down sliding axle also is provided be used to the termination that presses down that presses 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 also is provided with the radially branch steam vent that communicates with the main exhaust hole, described second triangle vavle mandrel to be through in the manual valve body, the bottom of manual valve body is provided with counterbore with first flange portion of holding second triangle spool and is used for holding out against the spiral compression spring of second triangle spool.
Further preferred, also be provided with Pressure gauge on the described manual starter pedestal.
Advantage and good effect that this patent has are:
Because this patent adopts technique scheme, move under the pressure differential in first chamber and second chamber by piston, the action of opening the action of venthole and opening shower nozzle is synthesized an action, improved the reliability of action.And injection apparatus is when cutting out, because the powder delivery baffle plate withstands in the extinguishing chemical storage chamber under the effect of the elastic force of compressibility spring or the gas pressure power difference on the piston all the time, thereby guaranteed sealing.
Description of drawings
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 among this patent embodiment 1 extinguishing device be in the 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;
Among the figure:
1, surveys starter automatically; 11, constant pressure pressure-reducing valve; 111, constant pressure reduction valve body; 112, supported joint; 113, the third triangle spool; 1131, first flange portion; 1132, mandrel portion; 114, spiral compression spring; 115, sealing ring; 116, spacing grommet; 12, visit fire tube; 13, plug; 14, visit the fire tube fixed leg;
2, threeway;
3, check-valves; 31, check valve body; 32, union (screwed)bonnet (UB; 33, hold out against joint; 331, second flange portion; 332, link; 333, radially ventilation is held; 334, hold out against end; 335, main passage; 336, divide passage; 34, first triangle spool;
4, connecting line;
5, manual starter; 51, push button; 52, pin is drawn in locking; 53, press down sliding axle; 531, the 3rd flange portion; 532, press down the termination; 54, gland; 55, manual valve body; 551, radially divide 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, first chamber; 68, piston; 69, sealing ring; 610, venthole; 611, annular inward flange; 612, pressurized stored gas chamber; 613, second chamber; 614, extinguishing chemical storage chamber; 615, spiral compression spring; 616, reseting baffle; 617, adjusted size sleeve.
The specific embodiment
For further understanding summary of the invention, characteristics and the effect of this patent, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Embodiment 1:
The automobile-used ultra-fine dry powder automatic fire extinguishing system of a kind of gas bomb type comprises extinguishing device and starting drive, it is characterized in that, the top of extinguishing device is provided with to the unidirectional charge valve of opening of extinguishing device, and charge valve is connected with threeway in the starting drive.
The structure of extinguishing device is specifically consulted Fig. 2, omits threeway among this figure, uses protective cap instead and covers on the 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, the pressurized stored gas chamber is communicated with the extinguishing chemical storage chamber by venthole 610, be provided with a piston 68 in the pressurized stored gas chamber, the pressurized stored gas chamber is divided into first chamber 67 and 613, the first chambeies, second chamber by piston and is communicated with starting drive by charge valve 66, piston be provided with piston rod 64 towards second chamber, one side, be provided with the passage 65 that is communicated with first chamber and second chamber at piston
The extinguishing chemical storage chamber is provided with shower nozzle 61, when injection apparatus cuts out, piston rod passes the pressurized stored gas chamber and extend in the extinguishing chemical storage chamber, and seal between the chamber wall in piston rod and pressurized stored gas chamber, the part of piston rod in the extinguishing chemical storage chamber is set with powder delivery baffle plate 611, on the indirect shaft shoulder that is against piston rod 63 of one side of powder delivery baffle plate, the powder delivery baffle plate is isolated extinguishing chemical storage chamber and shower nozzle, the opposite side of powder delivery baffle plate also is installed with reseting baffle 616 on piston rod, it is the baffle plate that is installed in the piston rod end by screw in the reseting baffle present embodiment, except present embodiment, can be cutting thread on piston rod also, be sleeved on the nut that plate on the piston rod is threaded in the piston rod end and fix.The external cylindrical surface of piston is provided with two seals circle 69 at least, and the position, interval between the multiple-sealed circle is corresponding with venthole.
Piston is against on the annular inward flange 611 in pressurized stored gas chamber near the side in second chamber, upper cover of piston rod is equipped with the compressibility spring, the compressibility spring is spiral compression spring 615 in the present embodiment, and the compressibility spring is between the shaft shoulder on the piston rod and powder delivery baffle plate.By being provided with the compressibility spring, when can avoid directly being sleeved on the powder delivery baffle plate on the piston rod, the problem of crossing the location that causes because piston has been against on the annular inward flange.After piston was against on the annular inward flange fully, the powder delivery baffle plate can also push the compressibility spring, realized that the powder delivery baffle plate is for the positiver sealing isolation of extinguishing chemical storage chamber.In addition; owing to be the total pressure difference of being born the piston two sides by annular inward flange in this programme; so the powder delivery baffle plate be pressed in pressure on the extinguishing chemical storage chamber be by the size of compressibility spring and kind and decrement determine, just can adjust the pressure that the powder delivery baffle plate is pressed in the extinguishing chemical storage chamber by the kind adjustment of adjustment compressibility spring.
Starting drive can be referring to Fig. 3,4,5, and the content among the figure is 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 also is connected with automatic detection starter and manual starter, automatically survey starter and comprise the constant pressure pressure-reducing valve 11 that is located at threeway one end, this constant pressure pressure-reducing valve and threeway UNICOM and court open away from the threeway direction is unidirectional, the end that constant pressure pressure-reducing valve is opened direction is provided with spy fire tube 12, and the other end of visiting fire tube is provided with plug 13.Visiting fire tube can be fixed on the bulkhead of automobile engine by visiting fire tube fixed leg 14 as required.
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, the constant pressure reduction valve body is connected with the 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 right-hand member of constant pressure reduction valve body is provided with internal thread and the counterbore that links to each other with through hole, supported joint links to each other with the constant pressure reduction valve body by the internal thread of constant pressure reduction valve body right-hand member, the third triangle spool 113 is located in the constant pressure reduction valve body and by spiral compression spring 114 and holds out against, the other end of spiral compression spring is against on the left side of supported joint, the third triangle spool comprises that first flange portion 1131 and cross section are leg-of-mutton mandrel portion 1132, flange portion is withstood by spiral compression spring, mandrel portion is positioned at above-mentioned through hole, and first flange portion of the third triangle spool and mandrel portion junction are set with sealing ring 115.Between the right side of constant pressure reduction valve body and supported joint, also be provided with spacing grommet 116, by changing the thickness of spacing grommet, can change the decrement of spiral compression spring, thereby change the size of the elastic force that is subjected to the right side of the third triangle spool, the final change visited in the fire tube and threeway internal pressure extent.
Manual starter 5 links to each other 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 left end of check valve body is provided with external screw thread and the counterbore that links to each other with through hole, first triangle spool is located in the check valve body and by spiral compression spring 114 and holds out against, the other end of spiral compression spring is against on the outer face of threeway, first triangle spool comprises that first flange portion 1131 and cross section are 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 of first triangle spool and mandrel portion junction are set with sealing ring 115
Hold out against joint 33 and also be provided with second flange portion 331, second flange portion, one side is the link 332 that is connected with the joint of connecting line, opposite side for ventilation end 333 radially and hold out against first triangle spool hold out against end 334, the 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 second flange portion is threaded on the check valve body compresses, hold out against coupling axis and be provided with main passage 335, main passage is provided with radially branch passage 336 at ventilation end radially.
Manual starter includes that push button 51, locking draw pin 52, press 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 the manual starter pedestal and the vent line 57 of connecting line UNICOM and the valve body installing hole that is threaded with valve body,
Push button with press down sliding axle and fixedly connected, pin is drawn in the locking that is provided with that presses down on the sliding axle radially, press down sliding axle and be provided with the 3rd flange portion 531, press down sliding axle and pass the gland that is threaded with manual valve body, and the upper side of the 3rd flange portion is glanded to be pushed down, the lower end that presses down sliding axle also is provided be used to what press down second triangle spool 59 and presses down termination 532
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 also is provided with the radially branch steam vent 551 that communicates with the main exhaust hole, second triangle vavle mandrel to the center that is through manual valve body, the bottom of manual valve body is provided with counterbore is used for holding out against second triangle spool with first flange portion of holding second triangle spool 59 and 1131 spiral compression spring 114.
Manual starter can be installed on the instrument plate according to user's needs, perhaps in the drawer in face of the copilot.
Also be provided with Pressure gauge 58 on the manual starter pedestal, in order to the air pressure size in the manual monitoring extinguishing device.
Starting drive is surveyed burning things which may cause a fire disaster by visiting fire tube, can be arranged to random length as required, investigative range is wide, be quick on the draw, the fire extinguisher of can adjusting the distance is timely made timely reaction than the condition of a fire at distant positions place, be not subjected to the structural limitations of original starting drive, overcome the problem that original automatic fire extinguisher can only be surveyed extinguishing device self condition of a fire on every side.Simultaneously, increase manual start device, the spy fire tube such as need not and leak, can manually boot when finding the condition of a fire artificial, for the startup of extinguishing device has increased dual fail-safe, improved 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 the pressurized stored gas interacvity air-filling.As shown in Figure 1, when charge into gases at high pressure in the pressurized stored gas chamber after, gases at high pressure have been full of first chamber and second chamber through passage 69, and first chamber is identical with pressure in second chamber.Because the existence of piston rod is arranged, and the area of piston 68 upper surfaces is greater than the area of piston lower surface, so act on the pressure total value of piston upper surface greater than the force value of lower surface.So piston moves down under this pressure differential effect, be against on the annular inward flange up to the lower surface of piston.At this moment, piston rod 64 also moves down with the powder delivery baffle plate 62 of suit above it thereupon together, in the process that moves down, if having run into the conical lower portion of extinguishing chemical storage chamber, the powder delivery baffle plate stops, namely do not readvance, begin to compress the spiral compression spring 615 between the shaft shoulder 63 and the powder delivery baffle plate 62, make spring be endowed certain elastic force, this elastic force size is the powder delivery baffle plate and is pressed in the interior pressure size of extinguishing chemical storage chamber.When the pressure in first chamber and second chamber reaches when setting pressure (for example 5Mpa) position between the two seals circle 69 on the piston just and the position consistency of venthole, the two seals circle is all kept apart venthole and first chamber, second chamber just.
Charge into after the gases at high pressure in extinguishing device, and give protective cap on the inflation valve bonnet, extinguishing device can store separately, transport.When being installed to automatic fire extinguishing system on the automobile to needs, can load onto starting drive again, make things convenient for the transportation of this product to store like this.
Second step, to not comprise that union (screwed)bonnet (UB 32 and the check-valves that holds out against joint 33 are installed in the threeway 2, and detection starter 1 and threeway are installed together automatically, in the process of installing, the third triangle spool 113 is pressed on the constant pressure reduction valve body 11 by spiral compression spring 114, because the other end of spiral compression spring is against on the supported joint 112, so supported joint is being screwed in the process of constant pressure reduction valve body, spiral compression spring namely has been endowed initial elastic force.This elastic force has finally namely caused the air pressure pressure and the difference of visiting the air pressure pressure in the fire tube 12 in the threeway.
The 3rd step was installed together threeway and extinguishing device, and protective cap is taken off from extinguishing device, and the fourth triangle spool of charge valve is depressed by the loam cake of threeway, and the sealing of extinguishing device is opened, and the air pressure pressure in the threeway is consistent with the pressure in the extinguishing device.Because the initial pressure of visiting in the fire tube 12 is lower, in the process that threeway and extinguishing device are installed together or after this process, stressed less than the left side of the third triangle spool, 113 right sides stressed, what the third triangle spool was suffered makes a concerted effort to the right, the third triangle spool can move right, open the sealing between sealing ring 115 and the constant pressure reduction valve body 111, high pressure gas in the threeway is known from experience to visiting in the fire tube mobile, gas in visiting fire tube equals for the elastic force sum of the gas pressure power left of the third triangle spool and spiral compression spring 114 that gas is for third triangle spool gas pressure power left in the threeway, and the three reaches balance.And at check-valves 3 places, because second triangle spool 59 is to open towards the threeway direction, all be to seal automatically towards the direction away from threeway, so this moment, check-valves can prevent that gases at high pressure from leaking from check-valves.
The 4th step was connected manual starter 5 with connecting line 4, and with connecting line with hold out against joint 33 and be connected, and then will hold out against joint and union (screwed)bonnet (UB 32 is installed on the check valve body 31.Because first triangle spool is to open towards the threeway direction, all be sealing automatically towards the direction away from threeway, so in manual starter, as long as locking draws pin 52 not draw back, only to guarantee gases at high pressure sealing herein.Holding out against joint and union (screwed)bonnet (UB is installed in the process of check valve body, because holding out against joint constantly is deep in the check valve body in the continuous rotary course of the screw thread of union (screwed)bonnet (UB, holding out against end 334 beginnings contacts with the left end of first triangle spool 34, and make first triangle spool move right, thereby open the sealing of sealing ring in the check-valves 115 and check valve body, make space between the through hole of mandrel portion that gases at high pressure in the threeway can be by first triangle spool and check valve body, and flow in connecting line 4 and the manual starter 5 through undue passage 336 and main passage 335.Thereby the air pressure in the Pressure gauge is consistent with the pressure in threeway and the extinguishing device, and Pressure gauge can show the pressure in the extinguishing device.
Installation process is not limited to above step order, but should guarantee that at least second step finished before the 3rd step and the first step should at first be finished.In addition, can also starting drive assemble fully finish after, again starting drive is installed on the extinguishing device.
After finishing above-mentioned installation steps, in the Pressure gauge, in the connecting line, the air pressure pressure in the threeway is consistent with the high pressure gas pressure in the extinguishing device.Visit the gas in the fire tube because passed through the decompression of constant pressure pressure-reducing valve, its pressure has been realized relatively low pressure less than the air pressure pressure in the extinguishing device, has prolonged the service life of visiting fire tube.In addition, visit keep in the fire tube relatively with extinguishing device in low pressure, avoided the spy fire tube because self internal pressure is bigger, the spy fire tube breaks and the misoperation that causes at lower temperature, has improved the reliability of system.
Owing to this patent has comprised manual starter and has surveyed starter automatically, so the operation of this patent comprises two kinds of patterns---manually boot pattern and automatic start-up mode.
Manually boot in the pattern, when the personnel in the vehicle find the condition of a fire, can destroy lead sealing, draw back locking and draw pin 52, locking draws pin namely to lose for the support of depressing sliding axle 53, press push button 51 then, pressing down sliding axle moves down in gland 54, press down the mandrel portion 1132 that termination 532 promotes first triangle spool 113 that presses down of sliding axle bottom, when mandrel portion is pushed down, sealing between sealing ring and the manual valve body is opened, the gases at high pressure threeway 2 of flowing through successively, check-valves 3, connecting line 4, vent line 57, the third triangle spool cross section is the space between leg-of-mutton mandrel portion and the main exhaust hole, and through radially dividing steam vent 551 ejections.Finally play the effect that pressure release starts.
Automatically in the start-up mode, when the condition of a fire occurring in the engine cavity of vehicle, temperature rises, when visit among Fig. 1 fire tube had by circle the position of circle melted by high-temperature gas by or when directly burning, the gas of visiting in the fire tube begins to discharge, air pressure descends.Because the air pressure of visiting in the fire tube descends, for the third triangle spool in the constant pressure pressure-reducing valve, the atmospheric pressure that the elastic force that its right side is subjected to and atmospheric pressure sum are subjected to less than its left side, the third triangle spool moves right and compresses spiral compression spring, make the sealing between sealing ring and the constant pressure reduction valve body be opened, flow through successively threeway, cross section of gases at high pressure is space, supported joint and spy fire tube between leg-of-mutton mandrel portion and the constant pressure reduction valve body, ejection at last.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 the charge valve is depressed by threeway, charge valve is in the outwards state of exhaust at this moment, the gas in first chamber is discharged rapidly through charge valve, because burn the sectional area that the hole that is greater than steam vent on the spy fire tube, so the speed that first chamber discharges gas is greater than the speed of second chamber by passage exhaust in first chamber, so the speed that the pressure in first chamber descends is greater than the speed of pressure decline second chamber in.In first chamber for the pressure of piston less than the pressure of second chamber for piston, make progress the pressure that piston is suffered with joint efforts, piston begins to move up.Along with the movement of piston rod, the powder delivery baffle plate baffle plate that also is reset drives and to move, and breaks away from the conical lower portion of extinguishing chemical storage chamber 614, makes the extinguishing chemical storage chamber communicate with shower nozzle 61.When the sealing ring on the piston all moves to the height of venthole when above, the second chamber inner bag gases at high pressure are injected to the extinguishing chemical storage chamber from venthole, promote extinguishing chemical and spray from shower nozzle, realize self-extinguishing.
Embodiment 2:
Present embodiment is that with the different of embodiment 1 the powder delivery baffle plate directly is against on the shaft shoulder of piston rod.In this programme, when injection apparatus cuts out, piston is not against on the annular inward flange, because annular inward flange is not set in the pressurized stored gas chamber, the difference of the active force of two faces of piston is passed through piston rod, the shaft shoulder, powder delivery baffle effect at last fully on the extinguishing chemical storage chamber.Adopt the advantage of this scheme to be, because the powder delivery baffle effect is gas pressure power poor of two faces of piston to the active force of extinguishing chemical storage chamber, the active force during sealing is big, good sealing effect.
Embodiment 3:
As shown in Figure 3, present embodiment is that with the different of embodiment 1 upper cover of piston rod is equipped with adjusted size sleeve 617, has substituted the spiral compression spring among the embodiment 1, and the adjusted size sleeve is between the shaft shoulder on the piston rod and powder delivery baffle plate.Remedy the piston that may exist and the mistake orientation problem between annular inward flange and powder delivery baffle plate and the extinguishing chemical storage chamber by the adjusted size sleeve of changing different length.
Although by reference to the accompanying drawings the preferred embodiment of this patent is described above, but this patent is not limited to the above-mentioned specific embodiment, the above-mentioned specific embodiment only is schematic, be not restrictive, those of ordinary skill in the art is under the enlightenment of this patent, do not breaking away under the scope situation that this patent aim and claim protect, can also make a lot of forms, for example: 1. the spiral compression spring in embodiment 1 or 3 is replaced with compressibility springs such as resilient sleeve or butterfly spring; 2. or according to embodiment 2 develop, with annular inward flange attenuation, be that the distance of close piston one side of annular inward flange and powder delivery baffle plate and extinguishing chemical storage chamber contact portion is less than the distance towards one side, second chamber and powder delivery baffle plate and extinguishing chemical storage chamber contact portion of piston, make that when injection apparatus cuts out piston is not against on the annular inward flange; 3. develop on the basis of embodiment 3, on piston rod, also put spiral compression spring, can adjust the decrement of spring by changing the adjusted size sleeve, thus the pressure when adjusting the sealing of powder delivery baffle plate; 4. will visit fire tube and make the form that contains branch road, and can enough be dispersed throughout each position of enging cabin.These all belong within the protection domain of this patent.
Claims (9)
1. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas bomb type comprises extinguishing device and starting drive, it is characterized in that, the top of described extinguishing device is provided with to the unidirectional charge valve of opening of extinguishing device, and charge valve is connected with threeway in the starting drive.
2. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas bomb type as claimed in claim 1, it is characterized in that: described extinguishing device comprises pressurized stored gas chamber and extinguishing chemical storage chamber, the pressurized stored gas chamber is communicated with the extinguishing chemical storage chamber by venthole, be provided with a piston in the pressurized stored gas chamber, the pressurized stored gas chamber is divided into the first chamber and the second chamber by piston, the first chamber is communicated with starting drive by charge valve, piston be provided with piston rod towards the second chamber one side, be provided with the passage that is communicated with the first chamber and the second chamber on piston
It is characterized in that: described extinguishing chemical storage chamber is provided with shower nozzle, when injection apparatus cuts out, piston rod passes the pressurized stored gas chamber and extend in the extinguishing chemical storage chamber, and seal between the chamber wall in piston rod and pressurized stored gas chamber, the part of piston rod in the extinguishing chemical storage chamber is set with the powder delivery baffle plate, on the direct or indirect shaft shoulder that is against piston rod of one side of powder delivery baffle plate, the powder delivery baffle plate is isolated extinguishing chemical storage chamber and shower nozzle, the opposite side of powder delivery baffle plate also is installed with reseting baffle on piston rod, the external cylindrical surface of piston is provided with two seals circle at least, and the position, interval between the multiple-sealed circle is corresponding with venthole.
3. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas bomb type as claimed in claim 2, it is characterized in that: described piston is against on the annular inward flange in pressurized stored gas chamber near the side in second chamber, described upper cover of piston rod is equipped with the compressibility spring, and the compressibility spring is between the shaft shoulder on the piston rod and powder delivery baffle plate.
4. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas bomb type as claimed in claim 2, it is characterized in that: described powder delivery baffle plate directly is against on the shaft shoulder of piston rod, piston with the expedite mode of two-way slip arrange with the pressurized stored gas chamber in.
5. as claim 2 or the automobile-used ultra-fine dry powder automatic fire extinguishing system of 3 described gas bomb types, it is characterized in that: described piston is against on the annular inward flange in pressurized stored gas chamber near the side in second chamber, described upper cover of piston rod is equipped with the adjusted size sleeve, and the adjusted size sleeve is between the shaft shoulder on the piston rod and powder delivery baffle plate.
6. the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas bomb type as claimed in claim 1 is characterized in that:
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 also is connected with automatic detection starter and manual starter, described automatic detection starter comprises the constant pressure pressure-reducing valve that is located at threeway one end, this constant pressure pressure-reducing valve and threeway UNICOM and court open away from the threeway direction is unidirectional, the end that constant pressure pressure-reducing valve is opened direction is provided with the spy fire tube, and the other end of visiting fire tube is provided with plug.
7. the starting drive of the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas bomb type as claimed in claim 6, it is characterized in that: described manual starter links to each other with threeway with check-valves by connecting line successively, 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, and the left end of check valve body is provided with external screw thread and the counterbore that links to each other with through hole,
Described first triangle spool is located in the check valve body and by spiral compression spring and holds out against, the other end of spiral compression spring is against on the outer face of threeway, first triangle spool comprises that first flange portion and cross section are 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 of first triangle spool and mandrel portion junction are set with sealing ring
The described joint that holds out against also is provided with second flange portion, second flange portion, one side is the link that is connected with the joint of connecting line, the hold out against end of opposite side for radially ventilating and hold and hold out against first triangle spool, the 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 the check valve body compresses, hold out against coupling axis and be provided with main passage, main passage is provided with radially branch passage at ventilation end radially.
8. the starting drive of the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas bomb type as claimed in claim 6, it is characterized in that: described manual starter includes that push button, locking draw pin, press down sliding axle, gland, manual valve body, second triangle spool, spiral compression spring and manual starter pedestal
Be provided with in the described manual starter pedestal and the vent line of connecting line UNICOM and the valve body installing hole that is threaded with valve body,
Described push button with press down sliding axle and fixedly connected, pin is drawn in the locking that is provided with that presses down on the sliding axle radially, press down sliding axle and be provided with the 3rd flange portion, press down sliding axle and pass the gland that is threaded with manual valve body, and the upper side of the 3rd flange portion is glanded to be pushed down, the lower end that presses down sliding axle also is provided be used to the termination that presses down that presses 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 also is provided with the radially branch steam vent that communicates with the main exhaust hole, described second triangle vavle mandrel to be through in the manual valve body, the bottom of manual valve body is provided with counterbore with first flange portion of holding second triangle spool and is used for holding out against the spiral compression spring of second triangle spool.
9. the starting drive of the automobile-used ultra-fine dry powder automatic fire extinguishing system of gas bomb type as claimed in claim 8 is characterized in that: also be provided with Pressure gauge on the described manual starter pedestal.
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 true CN103191536A (en) | 2013-07-10 |
| CN103191536B 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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Cited By (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
- 2013-04-01 CN CN201310111096.4A patent/CN103191536B/en not_active Expired - Fee Related
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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103191536B (en) | 2015-03-04 |
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