CN103210900A - Double-nozzle pulse combustion thermal aerosol generator and steady operation method thereof - Google Patents
Double-nozzle pulse combustion thermal aerosol generator and steady operation method thereof Download PDFInfo
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- CN103210900A CN103210900A CN201310173982XA CN201310173982A CN103210900A CN 103210900 A CN103210900 A CN 103210900A CN 201310173982X A CN201310173982X A CN 201310173982XA CN 201310173982 A CN201310173982 A CN 201310173982A CN 103210900 A CN103210900 A CN 103210900A
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Abstract
The technology provides a method for steady operation of a pulse combustion thermal aerosol generator, and by the method, the pulse combustion thermal aerosol generator is easy to start and capable of continuously and steadily operating. According to the method, two nozzles are arranged on a combustion chamber and are communicated with each other. Furthermore, the technology provides the dual-nozzle pulse combustion thermal aerosol generator which is easy to start and capable of continuously and steadily operating. The pulse combustion thermal aerosol generator comprises a carburetor and a pulse motor body, wherein the pulse motor body comprises the combustion chamber and the nozzles, with one ends of which are communicated with the combustion chamber; the carburetor is connected to the combustion chamber; and the nozzles are provided with chemical inlets and are communicated with each other through a communicating pipe.
Description
Technical field
The present invention relates to a kind of intermittent combustion thermal aerosol generator, relate in particular to Helmholtz type intermittent combustion engine, belong to intermittent combustion heating power atomization technique field.
Background technology
The intermittent combustion thermal aerosol generator also can be regarded as the intermittent combustion engine, is mainly used in the forestry extermination of disease and insect pest.Helmholtz type pulsation engine generally comprises carburetor and pulsed motor body; The pulsed motor body comprises combustion chamber, tapering transition pipe, jet pipe that is connected successively; The big end of tapering transition pipe communicates with the combustion chamber, and small end communicates with jet pipe.Carburetor comprises inlet plenum and trunnion, the locular wall of inlet plenum be provided with can unidirectional air inlet in inlet plenum breather cheek valve, air inlet pipe communicates with inlet plenum, and the oil nozzle that communicates with oil pipe is arranged on the trunnion, on combustion chamber and combustion chamber inlet duct that carburetor is connected spark plug is set.
Because Helmholtz type intermittent combustion engine is by the shake result of mutual coupling of burning and gas column sound, therefore the function steady operation of normally pulsing is started in intermittent combustion, necessarily requiring acoustic construction condition and heating condition to satisfy simultaneously could realize, its size to each parts especially combustion chamber, tapering transition pipe, jet pipe, shape etc. have strict requirement, and each component structural will mate mutually.At present, owing to also have many working mechanisms unclear, therefore also there is not fully reliable theory to determine the structure of intermittent combustion engine at the intermittent combustion engine.Therefore in order to make pulsed motor hugging work, constantly debug each parts; Even through debugging repeatedly, the pulse-combustion engine can have been worked, the pulse-combustion engine exists still that engine is difficult to be started, and work is difficult for problems such as continual and steady, promptly easily flame-out.
Summary of the invention
The purpose of present technique provides a kind of double venturi intermittent combustion thermal aerosol generator that starts easily, can work continually and steadily.
The described double venturi intermittent combustion of present technique thermal aerosol generator, comprise carburetor and pulsed motor body, the pulsed motor body comprises the jet pipe that a combustion chamber and an end communicate with the combustion chamber, carburetor is connected on the combustion chamber, jet pipe is provided with feeding opening, described jet pipe has two, is connected by a connecting pipe between two jet pipes.
Above-mentioned double venturi intermittent combustion thermal aerosol generator, two jet pipes parallel, and are positioned at the same side of combustion chamber.Best, communicating pipe and jet pipe are perpendicular.
Above-mentioned double venturi intermittent combustion thermal aerosol generator, carburetor comprises inlet plenum and trunnion, the locular wall of inlet plenum be provided with can unidirectional air inlet in inlet plenum breather cheek valve, air inlet pipe communicates with inlet plenum, the oil nozzle that communicates with oil pipe is arranged on the trunnion, on combustion chamber and combustion chamber inlet duct that carburetor is connected spark plug is set.
Present technique also provides a kind of method that makes the intermittent combustion thermal aerosol generator steady operation that the intermittent combustion thermal aerosol generator starts easily, can work continually and steadily simultaneously.
The method of this intermittent combustion thermal aerosol generator steady operation is that two jet pipes are set on the combustion chamber, is connected between two jet pipes.
The beneficial effect of present technique: present technique adopts the double venturi form, and two jet pipes directly communicate with the combustion chamber (having removed tapering transition pipe of the prior art), simultaneously, and by communicating pipe two jet pipes being connected.This structure makes and excites vibration mutually by easier formation sound thermal coupling between two jet pipes, makes engine be convenient to starting, and can lasting stability work, helps agricultural chemicals heating power fuming effect simultaneously.
Description of drawings
Fig. 1 is the structure chart of double venturi intermittent combustion thermal aerosol generator;
Embodiment
Double venturi intermittent combustion thermal aerosol generator referring to shown in Figure 1 comprises carburetor 1 and pulsed motor body, and the pulsed motor body comprises combustion chamber 2 and two jet pipes that parallel 3.One end of two jet pipes 3 communicates with the same side of combustion chamber 2, between two jet pipes by with vertical being connected communicating pipe 4 of jet pipe.Between communicating pipe and jet pipe spout, be respectively arranged with feeding opening 9 on two jet pipes.
Carburetor 1 comprises inlet plenum 11 and trunnion 12, the locular wall of inlet plenum is provided with and can (belongs to prior art by the breather cheek valve of unidirectional air inlet in inlet plenum, not shown), air inlet pipe 5 communicates with inlet plenum 11, the oil nozzle 7 that communicates with oil pipe 6 is arranged on the trunnion, on the combustion chamber inlet duct 10 that is connected with carburetor in the combustion chamber spark plug 8 is set.
Pass through air inlet pipe by air pump (hand pump or electric pump) output gases at high pressure during starting, enter the trunnion of carburetor, since the trunnion place to pass through area less, and air velocity is higher, form vacuum, oil is sucked by oil nozzle from oil pipe, and mix with air and to form combustion mixture, enter the combustion chamber through combustion chamber inlet duct, combustion mixture in the air inlet pipe of plug ignition ignition combustion chamber, spark is stretched rapidly to the combustion chamber, and moment forms strong burning, and the air pressure in the combustion chamber rises rapidly and is higher than atmospheric pressure, this moment, breather check valve was in closed condition under the internal pressure of combustion chamber effect, waste gas after the internal combustion of combustion chamber can only be discharged from two jet pipes, and the air pressure the combustion chamber in drops to when consistent with the outside atmosphere pressure, and air-flow continues to efflux to pipe under the gaseous mass action of inertia, pressure in the combustion chamber continues to descend, this moment, breather check valve was opened, and fresh air enters the trunnion of carburetor through breather check valve, is mixed into the combustion chamber mutually from oil nozzle sucking-off fuel oil and with fresh air.When double venturi intermittent combustion engine operate as normal, close spark plug, the combustion mixture that enters the combustion chamber is lighted once more at the ember of a last circulation or by the high temperature combustors wall, form the process that moves in circles of the burning-expansion-exhaust-air inlet of a new round, enter the steady-working state of intermittent combustion.
In startup of double venturi intermittent combustion thermal aerosol generator and course of normal operation, at synchronization, parameters such as the gas flow rate in two jet pipes, pressure, flow can not be identical, always have the inflow and outflow of gas in communicating pipe, help reinforcement sound thermal coupling between two jet pipes, excite vibration mutually, make this double venturi intermittent combustion thermal aerosol generator start easily work that can be continual and steady.
Utilize and enter the oil solvent agricultural chemicals that the thermal current in the double venturi will enter in the jet pipe from feeding opening respectively after the double venturi pulsed motor burning and carry out the heating power fuming, adopt the coupled version of double venturi to help strengthening the turbulence intensity of air-flow in the jet pipe, this makes the oil solvent agricultural chemicals that enters in the jet pipe can obtain more kinetic energy rapidly, helps heating power fuming effect.
Claims (5)
1. double venturi intermittent combustion thermal aerosol generator, comprise carburetor and pulsed motor body, the pulsed motor body comprises the jet pipe that a combustion chamber and an end communicate with the combustion chamber, carburetor is connected on the combustion chamber, jet pipe is provided with feeding opening, it is characterized in that: described jet pipe has two, is connected by a connecting pipe between two jet pipes.
2. double venturi intermittent combustion thermal aerosol generator as claimed in claim 1 is characterized in that: two jet pipes parallel, and are positioned at the same side of combustion chamber.
3. double venturi intermittent combustion thermal aerosol generator as claimed in claim 2, it is characterized in that: communicating pipe and jet pipe are perpendicular.
4. as claim 1,2 or 3 described double venturi intermittent combustion thermal aerosol generators, it is characterized in that: carburetor comprises inlet plenum, the trunnion that communicates, the locular wall of inlet plenum be provided with can unidirectional air inlet in inlet plenum breather cheek valve, air inlet pipe communicates with inlet plenum, the oil nozzle that communicates with oil pipe is arranged on the trunnion, on combustion chamber and combustion chamber inlet duct that carburetor is connected spark plug is set.
5. the method for intermittent combustion thermal aerosol generator steady operation is characterized in that: two jet pipes are set on the combustion chamber, are connected between two jet pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310173982.XA CN103210900B (en) | 2013-05-13 | 2013-05-13 | Double-nozzle pulse combustion thermal aerosol generator and steady operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310173982.XA CN103210900B (en) | 2013-05-13 | 2013-05-13 | Double-nozzle pulse combustion thermal aerosol generator and steady operation method thereof |
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| CN103210900A true CN103210900A (en) | 2013-07-24 |
| CN103210900B CN103210900B (en) | 2015-03-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950008A (en) * | 2014-03-26 | 2015-09-30 | 南京林业大学 | Test method and device based on pesticide heating power fuming and atomization principle and effect research |
| CN109663624A (en) * | 2019-02-03 | 2019-04-23 | 南京林业大学 | The multifunctional pulsed combustion experiment platform of Collapsible |
| CN112254970A (en) * | 2020-09-30 | 2021-01-22 | 东风汽车集团有限公司 | Rapid and accurate combustion noise separation method |
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| JP2003061548A (en) * | 2001-08-24 | 2003-03-04 | Yanmar Agricult Equip Co Ltd | Device for spraying chemical |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950008A (en) * | 2014-03-26 | 2015-09-30 | 南京林业大学 | Test method and device based on pesticide heating power fuming and atomization principle and effect research |
| CN104950008B (en) * | 2014-03-26 | 2018-01-16 | 南京林业大学 | Method of testing and device based on agricultural chemicals heating power fuming atomization mechanism and effect disquisition |
| CN109663624A (en) * | 2019-02-03 | 2019-04-23 | 南京林业大学 | The multifunctional pulsed combustion experiment platform of Collapsible |
| CN109663624B (en) * | 2019-02-03 | 2023-04-25 | 南京林业大学 | Collapsible folding multi-functional pulsation burning laboratory bench |
| CN112254970A (en) * | 2020-09-30 | 2021-01-22 | 东风汽车集团有限公司 | Rapid and accurate combustion noise separation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103210900B (en) | 2015-03-25 |
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Application publication date: 20130724 Assignee: Nantong Bolin Mechanical and Electrical Technology Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000372 Denomination of invention: Double-nozzle pulse combustion thermal aerosol generator and steady operation method thereof Granted publication date: 20150325 License type: Common License Record date: 20181210 Application publication date: 20130724 Assignee: Nantong Guangyi Electromechanical Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000368 Denomination of invention: Double-nozzle pulse combustion thermal aerosol generator and steady operation method thereof Granted publication date: 20150325 License type: Common License Record date: 20181210 |
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