CN202097055U - Hot water mist generating device driven by pulsating combustion - Google Patents
Hot water mist generating device driven by pulsating combustion Download PDFInfo
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- CN202097055U CN202097055U CN2011201038243U CN201120103824U CN202097055U CN 202097055 U CN202097055 U CN 202097055U CN 2011201038243 U CN2011201038243 U CN 2011201038243U CN 201120103824 U CN201120103824 U CN 201120103824U CN 202097055 U CN202097055 U CN 202097055U
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Abstract
The utility model relates to a hot water mist generating device driven by pulsating combustion. The device comprises a pulsating combustion device, a jacket and a water supply system, wherein the pulsating combustion device is a Helmholtz acoustic resonator type pulsating combustion device and comprises an inlet retaining valve, a carburetor passage, an accelerator, an oil tank, an ignition hand-operated air pump, a combustion chamber, a tail pipe, an ignition plug and an igniter; the jacket comprises a straight pipe jacket segment and a Laval jacket spray pipe; and the water supply system comprises a water amount adjusting valve, a pressure retaining valve, a water storage tank, an externally-connected feed valve and an externally-connected water supply pipe. The hot water mist generating device driven by pulsating combustion has the advantages of high fire extinguishing efficiency, high fire extinguishing speed, long endurance time for fire extinguishing, and the like, and is mainly applied to the field of fire extinguishing as well as the fields of pesticide spraying, fog generating and the like.
Description
Technical field
The utility model relates to the thin water smoke generating apparatus of heat that a kind of intermittent combustion drives, and adopts Hai Ermuhuoci type pulsating combusting device as heating source, makes vaporizing liquid and through jet pipe acceleration and liquefaction, produces the thin water smoke of high-speed motion.This mancarried device is mainly used in the fire-fighting fire extinguishing field, also can be applicable to fields such as pesticide spraying, smog generation.
Background technology
Fire extinguishing produces required power source commonly used with thin water smoke and mainly contains two types: one type is pump; Another kind of is high pressure compressed gas.Pump is generally by motor or internal combustion engine drive, and volume is big, weight is big, vibration is violent, is difficult to the power source as the portable fluid atomising device.The power source of portable fluid atomising device generally all adopts the mode of high pressure compressed gas extruding; Like the Chinese invention patent application: application number is 200710100396.7 portable type superfine aerosol fire extinguisher, and its power source adopts extruding gas cylinder, but since volume and weight limit; The extruding gas cylinder can not be very greatly, very heavy; The gas-storing capacity of gas cylinder is limited, and along with the minimizing gas pressure decay of water is very fast, can't form the thin water smoke of effective injection to the end.This just causes the working time of mancarried device shorter, generally can only keep for tens seconds, is unfavorable for producing for a long time ultra-fine liquid mist; Again fill gas cylinder, gas cylinder is changed also very trouble; Carry gas cylinder concerning the fire extinguishing personnel, always have certain danger.In addition, the mode overwhelming majority of the atomization of liquid executing agency that all need atomize is that nozzle is realized.The atomization characteristics of the type of nozzle, processing precision direct influence water smoke comprises fogdrop diameter, spray velocity etc.As if obtaining the thin water smoke of fogdrop diameter less than 100 microns, the diameter of nozzle is less than 0.8 millimeter usually, and pressure is higher than 2MPa.Therefore, the processing cost of mist-generating nozzle and machining accuracy are difficult to control, and the mist-generating nozzle of minor diameter is easy to stop up, and the reliability of system is reduced.In addition, even under condition of high voltage (pressure is greater than 3.45MPa), its penetration range of thin water smoke that sprays from nozzle also only has several meters, can't effectively penetrate flame to the thin water smoke of category-A fire and arrive burning things which may cause a fire disaster inside, and its effect of putting out a fire is unsatisfactory.
In addition, the Chinese invention patent application, publication number is CN101869096A, CN1462580A, the utility model patent publication number is fog machine or the atomizer that CN201565390U, CN2547418Y etc. have proposed to utilize the intermittent combustion driving.But the application principle of these fog machines or atomizer mainly is to utilize negative pressure that the pulsating combustor tail pipe produces to soup or water carries out the injection ejection.Its herb liquid or water are connected in the pulsating combustor tail pipe by storage tank, utilize the combustion gas velocity fluctuation in the tail pipe to carry ejection, and medicinal liquid flow is very little, can only produce the effect of filling the air.Use big flow soup will make the fog machine can't operate as normal.
The utility model content
The utility model relates to the thin water smoke generating apparatus of heat that a kind of intermittent combustion drives, to solve the problem that exists in the prior art.
The technical scheme of the utility model is following: Fig. 1 utilizes the utility model device to generate the schematic diagram of the method for the thin water smoke of heat.In conjunction with Fig. 1 to the explanation of the thin water smoke generation of this heat method as follows: this method specifically is to make the water experience be deformed into the thin water smoke of heat for twice mutually: at first water at first gets into chuck after storage tank flows out; In chuck, utilize the heat of high-temperature fuel gas in combustion chamber and the tail pipe that water is heated; Make it vaporization, realize phase transformation for the first time; Secondly, the high-temperature high-pressure steam Lavalle chuck jet pipe of flowing through, air velocity increases, and temperature reduces, and water recovery becomes the very little drop of diameter, realizes phase transformation for the second time; In the combustion gas mixing of Laval nozzle exit and intermittent combustion generation, combustion gas simultaneously is heated to 60～80 ℃ with thin water smoke, becomes the thin water smoke of heat, sprays to ignition source afterwards.
The thin water smoke generating apparatus of the heat that a kind of intermittent combustion drives, like Fig. 2, this device is made up of three parts, i.e. pulsating combusting device, chuck and water system.Pulsating combusting device adopts Hai Ermuhuoci acoustic resonance type, and fuel is gasoline, mainly is made up of import check valve 1, carburetor passage 2, throttle 3, fuel tank 4, igniting hand air pump 5, combustion chamber 6, tail pipe 7, spark plug 15 and igniter 16; Chuck is the outside mobile circular passage of water vapour that forms of pulsating combusting device combustion chamber and tail pipe, is made up of straight tube chuck section 8 and Lavalle chuck jet pipe 9; Water system is made up of water regulating valve 10, pressure check valve 11, storage tank 12, external feed water valve 13 and external feed pipe 14.Its structure and annexation are: the import check valve 1 of Hai Ermuhuoci pulsating combusting device is through carburetor passage 2 and combustion chamber 6 welding, and weld with tail pipe 7 combustion chamber 6; Fuel tank 4 communicates through the smallest cross-sectional of oil feed line with carburetor passage 2, and throttle 3 is installed on oil feed line; Igniting hand air pump 5 is communicated with import check valve 1 through gas piping.Spark plug 15 is installed in carburetor passage throat and combustion chamber 6 linkage sections through screw thread, also can be installed on the chamber wall, and spark plug 15 is by igniter 16 controls.Straight tube chuck section 8 welds together with Lavalle chuck jet pipe 9, and is co-axially mounted on the outside of pulsating combusting device combustion chamber 6 and tail pipe 7, forms chuck, is used to the mobile of heating and water vapour that feed water.Storage tank 12 is arranged at the chuck top, and communicates with chuck through feed pipe, and water regulating valve 10 and pressure check valve 11 are installed on feed pipe, on storage tank 12, is connected to external feed water valve 13 and external feed pipe 14.
Wherein, the utility model device can utilize combustion chamber and tail pipe heat that water is heated on the one hand and make its vaporization; Can utilize water that combustion chamber and tail pipe are lowered the temperature on the other hand prevents can realize working long hours because of overheated generation flexural deformation influences serviceability.
Wherein, the outlet of tail pipe 7 should be stretched out the outer 1～2cm of outlet of Lavalle chuck jet pipe 9, and the thin jet spray of Lavalle chuck nozzle exit ejection does not produce interference to combustion gas in the tail pipe, so intermittent combustion function independence steady operation.
Wherein, the driving of water is by storage pressure realization in advance in the storage tank 12, and this stores up pressure in advance is 0.2-0.3MPa.
The thin water smoke generating apparatus of the heat that a kind of intermittent combustion of the utility model drives, its advantage and effect are: the utility model utilizes pulsating combusting device and Laval nozzle, makes water experience phase transition process twice, produces thin water smoke, and the CO that produces with burning
2Combustion gas mixing sprays to the breaking out of fire zone, realizes thin water smoke drop of heat and CO at a high speed
2The fire extinguishing effect of associating, the utility model can timeless work under the situation at amount of gasoline that increase is carried and external water source, and be especially more effective to the fire (like forest fire, building fire) of longer duration.Simultaneously, the thin water smoke of heat has good fire extinguishing effect for cold place or initial fire disaster, and the utility model water consumption does not seldom have any pollution, and volume is little, and is safe to carry.That the utility model can be designed to as required is portable, cart type, vehicular and stationary installation." the thin water smoke of heat " fire extinguishing of the utility model is more effective than the thin water smoke of normal temperature, and the energy that utilizes fuel combustion to bring through twice phase transition process of water, has realized normal-temperature water is become the production process of at a high speed thin water smoke, the combustion gas (CO that burner produces
2) make original thin water smoke heating and participate in fire extinguishing with thin water smoke, jet velocity height, distance, fogdrop diameter are little, the better effects if of putting out a fire.
Description of drawings:
Fig. 1: intermittent combustion drives the thin water smoke occurring principle of heat.
Fig. 2: intermittent combustion drives atomization of liquid mancarried device.
Label declaration is following among the figure:
Import check valve 1; Carburetor passage 2; Throttle 3; Fuel tank 4; Igniting hand air pump 5; Combustion chamber 6; Tail pipe 7; Straight tube chuck section 8; Lavalle chuck jet pipe 9; Water regulating valve 10; Check valve 11; Storage tank 12; External feed water valve 13; External feed pipe 14; Spark plug 15; Igniter 16.
The specific embodiment:
Below in conjunction with accompanying drawing, the technical scheme of the utility model is done further explanation.
As shown in Figure 2, the thin water smoke generating apparatus of the heat that a kind of intermittent combustion drives, this device is made up of three parts, i.e. pulsating combusting device, chuck and water system.Pulsating combusting device adopts Hai Ermuhuoci acoustic resonance type, and fuel is gasoline, mainly is made up of import check valve 1, carburetor passage 2, throttle 3, fuel tank 4, igniting hand air pump 5, combustion chamber 6, tail pipe 7, spark plug 15 and igniter 16; Chuck is the outside mobile circular passage of water vapour that forms of pulsating combusting device combustion chamber and tail pipe, is made up of straight tube chuck section 8 and Lavalle chuck jet pipe 9; Water system is made up of water regulating valve 10, pressure check valve 11, storage tank 12, external feed water valve 13 and external feed pipe 14.Its structure and annexation are: the import check valve 1 of Hai Ermuhuoci pulsating combusting device is through carburetor passage 2 and combustion chamber 6 welding, and weld with tail pipe 7 combustion chamber 6; Fuel tank 4 communicates through the smallest cross-sectional of oil feed line with carburetor passage 2, and throttle 3 is installed on oil feed line; Igniting hand air pump 5 is communicated with import check valve 1 through gas piping that (hand air pump 5 of lighting a fire is communicated in import check valve 1 space at the back.The effect of import check valve 1 is when chamber pressure is higher, to close, and prevents that gas from flowing out from the rear portion, and when chamber pressure is low, opens, and lets fresh air enter into the combustion chamber.When pulsating combusting device starts, the inflation of igniting hand air pump 5 toward import check valve 1 rear portion, pressure is higher, and import check valve 1 is closed, and gas can only flow in the combustion chamber forward.Gasoline ejection simultaneously gets into the combustion chamber and forms premixed gas under gas drives.This moment, spark plug 15 was lighted premixed gas, and pressure uprises, and import check valve 1 is in closed condition always, and gas flows out the back and produces negative pressure, and import check valve 1 is opened, and this moment, pulsating combusting device can be realized moving hand air pump 5 air feed of no longer need lighting a fire voluntarily.Therefore light a fire hand air pump just in order to help pulsating combusting device to start).Spark plug 15 is installed in carburetor passage throat and combustion chamber 6 linkage sections through screw thread, also can be installed on the chamber wall, and spark plug 15 is by igniter 16 controls.Straight tube chuck section 8 welds together with Lavalle chuck jet pipe 9, and is co-axially mounted on the outside of pulsating combusting device combustion chamber 6 and tail pipe 7, forms chuck, is used to the mobile of heating and water vapour that feed water.Storage tank 12 is arranged at the chuck top, and communicates with chuck through feed pipe, and water regulating valve 10 and pressure check valve 11 are installed on feed pipe, on storage tank 12, is connected to external feed water valve 13 and external feed pipe 14.
It is following that this intermittent combustion drives the device for atomizing liquid course of work:
(1) gasoline and the water that will set dosage in advance is injected into respectively in fuel tank 4 and the storage tank 12, charges into compressed air to 0.2～0.3MPa for then storage tank 12, on igniter 16, installs No. 1 dry cell of two joints.
(2) press ignition starting switch; Spark plug 15 energising igniting; Then begin operation igniting hand air pump 5, open throttle 3 simultaneously, gasoline mixes gas because the air that siphonic effect entering carburetor passage 2 and air pump 5 infeed is mixed into fuel; Lighted during through spark plug 15, make and set up the intermittent combustion process in pulsating combusting device combustion chamber and the tail pipe.At this moment close ignition switch and stop to light a fire hand air pump 5 operations, intermittent combustion continues to carry out automatically, regulates throttle 3 switches, can control the output of pulsating combusting device power within the specific limits.
(3) after pulsating combusting device starts; The adjustable valve 10 of fetching boiling water, water is at the chuck that gets under the effect of storage tank 12 internal pressures between straight tube chuck section 8 and combustion chamber 6 outer walls, and the water that gets in the chuck receives thermal evaporation to become water vapour; Flow along the spout direction of chuck to Lavalle chuck jet pipe 9; Under the situation of confirming pulsating combusting device throttle 3 and water regulating valve 10 apertures, can guarantee that through design there is a stationary value in the pressure of water vapour in chuck, this stationary value is 0.1～0.2MPa.Check valve 11 guarantees and can only flow to chuck by water that even water vapor pressure is higher than storage tank 12 internal pressures in some situation chuck, because the existence of check valve 11, water vapour also can't get into storage tank 12, keeps operate as normal and guarantees storage tank safety.
(4) (0.1～0.2MPa) water vapour is through in the process of Lavalle chuck jet pipe 9 for the high temperature (120 ℃～130 ℃) in the chuck, high pressure; The temperature and the pressure of water vapour reduce gradually, and flow velocity increases gradually, the chuck jet pipe 9 expansion segment somewheres in the Lavalle; The temperature of water vapour is lower than the condensation point of water; The part water vapour can be condensed into little water droplet, by the spout ejection, forms thin water smoke with another part water vapour.
(5) combustion gas (CO of pulsating combusting device gasoline combustion generation
2) through tail pipe 7 ejections, mix combustion gas (CO with thin water smoke at the jet pipe place
2) fluctuation velocity be about 100m/s, itself has uniform temperature, when mixing with thin water smoke thin water smoke is had certain heat effect, through the design can make thin water smoke temperature maintenance at 60～80 ℃.So just formed the thin water smoke and the fuel gas mixture jet of high speed, sprayed into scene of a fire fire extinguishing with 60～80 ℃.
Claims (3)
1. the thin water smoke generating apparatus of heat that drives of an intermittent combustion, it is characterized in that: this device is made up of three parts, i.e. pulsating combusting device, chuck and water system; Pulsating combusting device adopts Hai Ermuhuoci acoustic resonance type, is made up of import check valve (1), carburetor passage (2), throttle (3), fuel tank (4), igniting hand air pump (5), combustion chamber (6), tail pipe (7), spark plug (15) and igniter (16); Chuck is the outside mobile circular passage of water vapour that forms of pulsating combusting device combustion chamber and tail pipe, is made up of straight tube chuck section (8) and Lavalle chuck jet pipe (9); Water system is made up of water regulating valve (10), pressure check valve (11), storage tank (12), external feed water valve (13) and external feed pipe (14); Its structure and annexation are: the import check valve (1) of Hai Ermuhuoci pulsating combusting device is through carburetor passage (2) and combustion chamber (6) welding, and weld with tail pipe (7) combustion chamber (6); Fuel tank (4) communicates through the smallest cross-sectional of oil feed line with carburetor passage (2), and throttle (3) is installed on oil feed line; Igniting hand air pump (5) is communicated with import check valve (1) through gas piping; Spark plug (15) is installed in the linkage section of carburetor passage throat and combustion chamber (6) through screw thread, and spark plug (15) is controlled by igniter (16); Straight tube chuck section (8) and Lavalle chuck jet pipe (9) weld together, and are co-axially mounted on the outside of pulsating combusting device combustion chamber (6) and tail pipe (7), form chuck; Storage tank (12) is arranged at the chuck top, and communicates with chuck through feed pipe, and water regulating valve (10) and pressure check valve (11) are installed on feed pipe, on storage tank (12), is connected to external feed water valve (13) and external feed pipe (14).
2. the thin water smoke generating apparatus of the heat that intermittent combustion according to claim 1 drives is characterized in that: the outer 1～2cm of outlet of Lavalle chuck jet pipe (9) is stretched out in the outlet of described tail pipe (7).
3. according to the thin water smoke generating apparatus of the right 1 described heat of utilizing intermittent combustion to drive, it is characterized in that: the preparatory storage pressure of the interior water of described storage tank (12) is 0.2-0.3MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201038243U CN202097055U (en) | 2011-04-11 | 2011-04-11 | Hot water mist generating device driven by pulsating combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201038243U CN202097055U (en) | 2011-04-11 | 2011-04-11 | Hot water mist generating device driven by pulsating combustion |
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| Publication Number | Publication Date |
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| CN202097055U true CN202097055U (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201038243U Expired - Lifetime CN202097055U (en) | 2011-04-11 | 2011-04-11 | Hot water mist generating device driven by pulsating combustion |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151629A (en) * | 2011-04-11 | 2011-08-17 | 北京航空航天大学 | Pulse combustion-driven hot fine water mist generation method and device |
| CN109173114A (en) * | 2018-09-25 | 2019-01-11 | 南京工业大学 | Venting of dust explosion premixed flame induces the automatic explosion suppression device of water mists and its explosion-suppressing method of vaporous cloud explosion |
| CN110043884A (en) * | 2019-05-15 | 2019-07-23 | 上海勋友节能环保设备有限公司 | A kind of high-temperature low-pressure water natural gas heating system and method |
| CN110507928A (en) * | 2019-08-16 | 2019-11-29 | 国网江苏省电力有限公司 | For the fine water mist fire-extinguishing system and extinguishing method of LiFePO4 energy-accumulating power station battery prefabricated cabin |
-
2011
- 2011-04-11 CN CN2011201038243U patent/CN202097055U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151629A (en) * | 2011-04-11 | 2011-08-17 | 北京航空航天大学 | Pulse combustion-driven hot fine water mist generation method and device |
| CN102151629B (en) * | 2011-04-11 | 2013-05-01 | 北京航空航天大学 | Pulse combustion-driven hot fine water mist generation method and device |
| CN109173114A (en) * | 2018-09-25 | 2019-01-11 | 南京工业大学 | Venting of dust explosion premixed flame induces the automatic explosion suppression device of water mists and its explosion-suppressing method of vaporous cloud explosion |
| CN109173114B (en) * | 2018-09-25 | 2023-08-04 | 南京工业大学 | Fine water mist automatic explosion suppression device for explosion venting premixed flame to induce vapor cloud explosion and explosion suppression method thereof |
| CN110043884A (en) * | 2019-05-15 | 2019-07-23 | 上海勋友节能环保设备有限公司 | A kind of high-temperature low-pressure water natural gas heating system and method |
| CN110043884B (en) * | 2019-05-15 | 2024-01-30 | 上海璀玉科技有限公司 | High-temperature low-pressure natural gas heating system and method |
| CN110507928A (en) * | 2019-08-16 | 2019-11-29 | 国网江苏省电力有限公司 | For the fine water mist fire-extinguishing system and extinguishing method of LiFePO4 energy-accumulating power station battery prefabricated cabin |
| CN110507928B (en) * | 2019-08-16 | 2023-05-12 | 国网江苏省电力有限公司 | Water mist fire extinguishing system and fire extinguishing method for battery prefabricated cabin of lithium iron phosphate energy storage power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120104 Effective date of abandoning: 20130501 |
|
| RGAV | Abandon patent right to avoid regrant |