CN208205007U - A kind of gas-liquid combustible combustion device - Google Patents
A kind of gas-liquid combustible combustion device Download PDFInfo
- Publication number
- CN208205007U CN208205007U CN201820520621.6U CN201820520621U CN208205007U CN 208205007 U CN208205007 U CN 208205007U CN 201820520621 U CN201820520621 U CN 201820520621U CN 208205007 U CN208205007 U CN 208205007U
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- Prior art keywords
- atomization
- gas
- liquid combustible
- liquid
- spray core
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Abstract
The utility model discloses a kind of gas-liquid combustible combustion devices, the gas-liquid combustible combustion device includes the nozzle set of ejiction opening and the atomization spray core that is arranged in the nozzle set, the a plurality of spiral fog water content axially extended is evenly equipped in the axial side wall of the spray core body, gas-liquid combustible into the spray core body and the nozzle set cavity, entered after the cylindrical spray chamber progress primary atomization by the spiral fog water content and is sprayed from the ejiction opening, after the gas-liquid combustible that the ejiction opening sprays mixes progress secondary-atomizing with the atomization aeration fluid in the atomization aeration pipeline, the mixture of gas-liquid combustible and atomization aeration fluid, in the pushing course of subsequent atomization oxygenation fluid, it is atomized three times by the atomization flameholder, high speed ejection multiply rotating jet carries out premixed combustion in the form of turbulent flow, combustion Burning speed is fast, fire temperature is high, flame holding is good, high combustion efficiency.
Description
Technical field
The utility model relates to a kind of combustible combustion devices to belong to gas more particularly, to a kind of gas-liquid combustible combustion device
The igniting of liquid combustible, heating combustion apparatus design and manufacturing technology field.
Background technique
Currently, using diesel oil, the gas-liquids combustible such as natural gas is heated as fuel, burnt or is fired to other solids
Material is lighted a fire, in the equipment for the burning that heats up, and frequently encountering will light a fire to diesel oil, natural gas.Existing ignition installation is logical
Frequently with lighting a fire after monopole jet atomization, i.e., directly gas-liquid combustible is sprayed using ignition installation nozzle, and spraying
During be atomized.This monopole jet atomization has the disadvantage in that
1, gas-liquid combustible jet velocity is slow, and atomizing effect is poor, and burning velocity is slow.
2, gas-liquid combustible is diffused burning, does not mix suitable oxygen uniformly, and oxygen content is insufficient, causes gas-liquid
Combustible combustion speed is slow, and fire temperature is low.
3, the bad efficiency of combustion of gas-liquid combustible atomization is low, causes the serious waste of the energy, can also generate to environment serious
Pollution.
4, gas-liquid combustible carries out laminar motion, flame instability after spraying.
5, easily there is phenomena such as water clock whereabouts, coking in gas-liquid combustible ejiction opening head
With the improvement of people's environmental awareness, and to the consumption of non-renewable energy resources requirement, research and develop a kind of environmental protection,
Energy saving, stable gas-liquid combustible combustion device just becomes an extremely urgent job of this field.
Utility model content
Gas-liquid combustible atomization effect can be effectively improved the technical problem to be solved by the utility model is to provide a kind of
Fruit accelerates burning velocity, and flame stabilization when making gas-liquid combustible combustion, fire temperature is high, the burner of high combustion efficiency.
Used technical solution is to solve above-mentioned technical problem: a kind of gas-liquid combustible combustion device, including contains spray
The nozzle set of outlet and the atomization spray core being arranged in the nozzle set, it is uniformly distributed a plurality of axially disposed in spray core body axial walls
Spiral fog water content pass through the spiral fog water content into the gas-liquid combustible in the spray core body and the nozzle set cavity
It is sprayed after carrying out primary atomization into cylindrical spray chamber from the ejiction opening.The gas-liquid combustible combustion device further includes socket
It is steady to there also is provided atomization flame in the ejection end of the atomization aeration pipeline for atomization aeration pipeline on the outside of the nozzle set
Determine device.
Further, the fluid for playing atomization and increase oxygen passes through the atomization aeration pipeline to the nozzle set
Outer periphery enters the gas-liquid combustible after the cylindrical spray chamber carries out primary atomization by the spiral fog water content, from
The atomization aeration fluid in gas-liquid combustible and the atomization aeration pipeline after the ejiction opening ejection, in subsequent atomization oxygenation
Mixing sprays the atomization aeration pipeline after carrying out secondary-atomizing under fluid forces.
The preferred mode of the above solution is that entering the cylindrical spray chamber by the spiral fog water content carries out a mist
After change, the atomization aeration is sprayed after carrying out secondary-atomizing from the gas-liquid combustible and atomization aeration fluid that the ejiction opening sprays
During pipeline, it is atomized three times by the atomization flameholder, high speed ejection multiply rotating jet is with turbulent flow shape
State carries out premixed combustion.
The preferred mode of the above solution is that the atomization flameholder by with the atomization aeration pipe end internal diameter phase
The atomization cylinder of adaptation is constituted, and is disposed on the axial circumference of the atomization cylinder a plurality of axially extending along the atomization cylinder
Spiral atomization chamber, the spiral atomization chamber is along the atomization cylinder circumference uniform distribution；By described in spiral fog water content entrance
After cylindrical spray chamber carries out primary atomization, the gas-liquid combustible and atomization aeration fluid sprayed from the ejiction opening carries out secondary
It is atomized three times during spraying the atomization aeration pipeline after atomization by the spiral atomization chamber, high speed ejection multiply
Rotating jet carries out premixed combustion in the form of turbulent flow.
Further, the atomization spray core includes spray core body and gas-liquid combustible conveyance conduit, the spray core body arrangement
In the output end of the flammable conduit of the gas-liquid, the spiral fog water content is arranged on the spray core body, the atomization spray core
The nozzle set is socketed in by the spray core body and a part of gas-liquid combustible conveyance conduit being connected with the spray core body
It is interior.
The preferred mode of the above solution is that being additionally provided with the cylindrical mist axially extended in the free end of the spray core body
Change room, gas-liquid combustible is sprayed along the cylindrical spray chamber peripheral helical rotation from the ejiction opening.
Further, being provided perpendicular to institute in the junction of the spray core body and the gas-liquid combustible conveyance conduit
The gas-liquid combustible delivery outlet for stating spray core body longitudinal center line, inputting the gas-liquid by the gas-liquid combustible conveyance conduit can
The gas-liquid combustible of combustion things burner sprays into the sky of the spray core body and the nozzle set by the gas-liquid combustible delivery outlet
In chamber under the promotion of subsequent gas-liquid combustible, the cylindrical spray chamber is entered by the spiral fog water content and carries out a mist
It is sprayed after change from the ejiction opening.
Further, connecting flange is additionally provided on the fluid input of the atomization aeration pipeline, in the company
It is provided with transitional connection pipe on the atomization aeration pipeline between acting flange and the atomization spray core, the gas-liquid combustible is defeated
The input terminal of pipeline is sent to be secured across the connecting flange, the atomization aeration pipeline passes through the transitional connection pipe and external mist
Change the connection of oxygenation fluid delivery tube.
Further, being provided with first flow regulating device and first flowmeter on the gas-liquid combustible conveyance conduit
Device is measured, second flow regulating device and second flow metering device are also equipped on the atomization aeration pipeline.
The beneficial effects of the utility model are: a plurality of along the spray core due to being evenly equipped in the axial walls of the spray core body
The axially extending spiral fog water content of body, the gas-liquid combustible into the spray core body and the nozzle set cavity, passes through
The spiral fog water content enters after the cylindrical spray chamber carries out primary atomization to be sprayed from the ejiction opening.Atomization aeration fluid
Gas-liquid combustible and institute by the atomization aeration pipeline to the nozzle set outer periphery, after the ejiction opening ejection
The atomization aeration fluid in atomization aeration pipeline is stated, mixing is sprayed after carrying out secondary-atomizing under the promotion of subsequent atomization oxygenation fluid
The atomization aeration pipeline out.It there also is provided atomization flameholder in the ejection end of the atomization aeration pipeline, be atomized
It during oxygenation fluid sprays the atomization aeration pipeline, is atomized three times by the atomization flameholder, high speed
It sprays multiply rotating jet and carries out premixed combustion in the form of turbulent flow.Gas-liquid combustible in the prior art is changed so directly to pass through
Monopole sprays the structure being atomized, to make gas-liquid combustible by the primary atomization of the spiral fog water content, further through mist
Change the secondary-atomizing of oxygenation fluid mixing, then passes through the atomization three times of the atomization flameholder, the rotation of high speed ejection multiply
Jet stream carries out premixed combustion in the form of turbulent flow, reaches and accelerates burning velocity, stablizes flame profile, improves fire temperature and burning effect
The purpose of rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model gas-liquid combustible combustion device.
In the figure, it is marked as ejiction opening 1, nozzle set 2, atomization spray core 3, spiral fog water content 4, atomization aeration pipeline 5, atomization fire
Flame stabilizer 6, atomization cylinder 7, spiral atomization chamber 8, spray core body 9, gas-liquid combustible conveyance conduit 10, cylindrical spray chamber 11,
Gas-liquid combustible delivery outlet 12, connecting flange 13, transition conduit 14, first flow regulating device 15-1 and second flow adjust dress
Set 15-2, first flow metering device 16-1 and second flow metering device 16-2.
Specific embodiment
It is a kind of atomizing effect that can effectively improve gas-liquid combustible provided by the utility model as shown in Figure 1, accelerates
Burning velocity stablizes flame profile, improves the gas-liquid combustible combustion device of fire temperature and efficiency of combustion.Shown in gas-liquid it is flammable
Object burner includes the nozzle set 2 containing ejiction opening 1 and the atomization spray core 3 that is arranged in the nozzle set 2, in the spray core body
The a plurality of spiral fog water content 4 axially extending along the spray core body 9 is evenly equipped in 9 axial walls, into the spray core body 9 with it is described
2 cavity of nozzle set in gas-liquid combustible, the cylindrical spray chamber 11 is entered by the spiral fog water content 4 and is carried out once
It is sprayed after atomization from the ejiction opening 1.The atomization aeration fluid is delivered to the nozzle set by the atomization aeration pipeline 5
2 outer peripheries, the atomization aeration fluid out of gas-liquid combustible and the atomization aeration pipeline 5 after the ejiction opening 1 ejection,
Mixing sprays the atomization aeration pipeline 5 after carrying out secondary-atomizing under the promotion of subsequent atomization oxygenation fluid.In the atomization
The ejection end of oxygenation pipeline 5 there also is provided atomization flameholder 6, spray the atomization aeration pipeline in atomization aeration fluid
During 5, it is atomized three times by the atomization flameholder 6, high speed ejection multiply rotating jet is in the form of turbulent flow
Carry out premixed combustion.
It is directly atomized, i.e., is set using igniting by monopole ejection in this way, changing gas-liquid combustible in the prior art
The structure that gas-liquid combustible is directly sprayed, and is atomized during ejection by standby nozzle.To make gas-liquid combustible by one
Secondary atomization, is atomized secondary-atomizing three times, from the 6 high speed ejection multiply rotating jet of atomization flameholder in the form of turbulent flow
Premixed combustion is carried out, reaches and accelerates burning velocity, stablizes flame profile, improve the purpose of fire temperature and efficiency of combustion.
In above embodiment, to solve the gas-liquid combustible after prior art atomization since oxygen content is insufficient and sprays
Be diffused burning in the form of laminar flow afterwards and caused by burning velocity is slow, flame instability, fire temperature is low, efficiency of combustion is low
Problem, the application are further improved the gas-liquid combustible combustion device, i.e., the described gas-liquid combustible combustion device further includes
Atomization aeration pipeline 5 in 2 outside of nozzle set, atomization aeration fluid pass through institute under the promotion of subsequent atomization oxygenation fluid
It states atomization aeration pipeline 5 to be delivered to around the nozzle set 2, the cylindrical atomization is entered by the spiral fog water content 4
After room 11 carries out primary atomization, gas-liquid combustible is after the ejiction opening 1 ejection and the mixing of atomization aeration fluid carries out secondary mist
After change, the atomization aeration pipeline 5 is sprayed under the promotion of subsequent atomization oxygenation fluid, in this way, carrying out the same of secondary-atomizing
When gas-liquid combustible in be sufficiently mixed oxygen, play the role of increasing oxygen, accelerate burning velocity, improve fire temperature and burning
Efficiency.
Better, the appropriate oxygen content according to combustible atomizing effect, oxygen and combustible mixing are more uniform, and burning velocity is got over
Fast principle, gas-liquid combustible carry out secondary-atomizing and are atomized three times with atomization aeration fluid again after carrying out primary atomization.According to
Combustible and oxygen are with rotating jet gestalt movement, the high principle of combustion flame stability, gas-liquid combustible and atomization aeration stream
The mixture of body, from the 6 high speed ejection multiply rotating jet of atomization flameholder.It is high according to premixed combustion fire temperature
Principle, gas-liquid combustible and atomization aeration fluid spray after being mixed in burner.According to combustible combustion speed and
The equal burning of speed that flame moves forward could continue the principle carried out, the mixture of gas-liquid combustible and atomization aeration fluid
High speed ejection is pushed ahead in the form of turbulent flow.It there also is provided atomization flame stabilization in the ejection end of the atomization aeration pipeline 5
Device 6 sprays after entering the cylindrical progress of spray chamber 11 primary atomization by the spiral fog water content 4 from the ejiction opening 1
Gas-liquid combustible and atomization aeration fluid mixing carry out secondary-atomizing after, under subsequent atomization oxygenation fluid forces spray described in
During atomization aeration pipeline 5, be atomized and be sufficiently mixed with oxygen by the atomization flameholder 6, high speed is sprayed
Multiply rotating jet carries out premixed combustion in the form of turbulent flow out.
Preferred atomization flameholder 6 is due to compatible 7 structure of atomization cylinder of 5 inner end diameter of atomization aeration pipeline
At being provided on the axial circumference of the atomization cylinder 7 a plurality of along the axially extending spiral atomization chamber of the atomization cylinder 7
8, the spiral atomization chamber 8 enters the cylindrical mist along 7 circumference uniform distribution of atomization cylinder, by the spiral fog water content 4
After changing the progress of room 11 primary atomization, gas-liquid combustible and atomization aeration the fluid mixing sprayed from the ejiction opening 1 carries out secondary
After atomization, by the spiral mist during atomization aeration pipeline 5 are sprayed under the promotion of subsequent atomization oxygenation fluid
Change chamber 8 to be atomized, in this way by primary atomization, the gas-liquid combustible of secondary-atomizing, then passes through the spiral atomization chamber 8 progress
It is atomized three times, gas-liquid combustible atomizing effect is good, appropriate oxygen, combustible and oxygen mix are uniform, the rotation of high speed ejection multiply
Jet stream carries out premixed combustion in the form of turbulent flow.
It is the further atomizing effect for improving gas-liquid combustible, in conjunction with herein described spray core in above embodiment
Body 9 is arranged in the output end of the gas-liquid combustible conveyance conduit 10, and the spiral fog water content 4 is arranged in the spray core body 9
On, the atomization spray core 3 passes through the spray core body 9 and a part of gas-liquid combustible delivery pipe being connected with the spray core body 9
Road 10 is socketed the structure in the nozzle set 2, is additionally provided with the cylinder axially extended in the free end of the spray core body 9
Shape spray chamber 11, gas-liquid combustible are sprayed along the cylindrical spray chamber peripheral helical rotation with the ejiction opening 1.Such gas-liquid
Combustible plays the role of improving atomizing effect, in the spray core body by having enough atomization spaces after the spiral fog water content 4
9 gas-liquids for being provided perpendicular to 9 longitudinal center line of spray core body with the junction of the gas-liquid combustible conveyance conduit 10 can
Combustion things delivery outlet 12, the gas-liquid for inputting the gas-liquid combustible combustion device by the gas-liquid combustible conveyance conduit 10 is flammable
Object is sprayed by the gas-liquid combustible delivery outlet 12 in the cavity of the spray core body 9 and the nozzle set 2, and subsequent defeated
After entering the cylindrical progress of spray chamber 11 primary atomization by the spiral fog water content 4 under the promotion of the gas-liquid combustible entered
It is sprayed from the ejiction opening 1.
It is inputted in the atomization aeration pipeline 5 in order to facilitate atomization aeration fluid, in the atomization of the atomization aeration pipeline 5
Connecting flange 13 is provided on oxygenation fluid input, the mist between the connecting flange 13 and the atomization spray core 3
Change and be provided with transitional connection pipe 14 on oxygenation pipeline 5, the input terminal pipeline of the gas-liquid combustible conveyance conduit 10 passes through described
Connecting flange 13, the atomization aeration pipeline 5 are connected by the transitional connection pipe 14 with external atomization aeration fluid delivery tube
It connects.10 input terminal of gas-liquid combustible conveyance conduit of the connecting flange 13 closed on is provided with first flow tune simultaneously
Regulating device 15-1 and first flow measure device 16-1, are also equipped with second flow tune in 5 input terminal of atomization aeration pipeline
Regulating device 15-2 and second flow measure device 16-2.
In conclusion provided by the utility model flammable to gas-liquid using the structure for being atomized gas-liquid combustible combustion device three times
Object is atomized under the promotion of pressure difference three times, and it is better than existing atomizing type atomizing effect to be atomized into gas-liquid combustible
More effects, in this way, keeping gas-liquid combustible atomizing effect good, appropriate oxygen, combustible and oxygen mix are uniform, from the atomization
6 high speed ejection multiply rotating jet of flameholder carries out premixed combustion in the form of turbulent flow, burning velocity is fast, fire temperature is high,
Flame stabilization, high combustion efficiency achieve the purpose that energy saving.Due to passing through the gas after the pressure atomization of gas-liquid combustible itself
Liquid combustible from the ejiction opening 1 ejection after, be not detached from burner, but in the atomization aeration pipeline 5 further and
Atomization aeration fluid mixed aerosol is delivered to the atomization cylinder 7, in the process under the promotion of subsequent atomization oxygenation fluid
Oxygen content is increased in gas-liquid combustible and improves the degree of mixing with oxygen, during the spiral atomization chamber 8
It is atomized again, high speed ejection multiply rotating jet carries out premixed combustion in the form of turbulent flow.It can be larger to avoid combustible after atomization
Partial size further saves the energy, this is also that the application is more significantly imitated because gravity in ejiction opening the phenomenon that water clock whereabouts occurs
One of fruit.It according to statistics, is lighted a fire using gas-liquid combustible combustion device provided by the utility model, heat up burning, with use
Igniting, the heating burning of more advanced similar product progress currently on the market compare, and can at least drop at energy saving aspect
Low 50% or more dosage, and be compared with general product currently on the market, highest can reduce by 95% usage amount.
Claims (8)
- Include ejiction opening (1) nozzle set (2) and the mist that is arranged in the nozzle set 1. a kind of gas-liquid combustible combustion device Change spray core (3), it is characterised in that: it is axially distributed in spray core body (9) axial walls to have a plurality of spiral fog water content (4), into institute The gas-liquid combustible in spray core body (9) and the nozzle set (2) cavity is stated, is entered by the spiral fog water content (4) cylindrical Spray chamber (11) sprays after carrying out primary atomization from the ejiction opening (1), and the gas-liquid combustible combustion device further includes being socketed in Atomization aeration pipeline (5) on the outside of the nozzle set (2) there also is provided mist in the ejection end of the atomization aeration pipeline (5) Change flameholder (6).
- 2. a kind of gas-liquid combustible combustion device according to claim 1, it is characterised in that: atomization aeration fluid passes through described Atomization aeration pipeline (5) is delivered to around the nozzle set (2), enters the cylinder by the spiral fog water content (4) Gas-liquid combustible after spray chamber (11) progress primary atomization is sprayed from the ejiction opening (1), the gas that the ejiction opening (1) sprays Atomization aeration fluid in liquid combustible and the atomization aeration pipeline (5), mixes under the promotion of subsequent atomization oxygenation fluid Carry out secondary-atomizing.
- 3. a kind of gas-liquid combustible combustion device according to claim 2, it is characterised in that: pass through the spiral fog water content (4) after entering cylindrical spray chamber (11) the progress primary atomization, the gas-liquid combustible and mist that are sprayed from the ejiction opening (1) During spraying the atomization aeration pipeline (5) after change oxygenation fluid secondary-atomizing, pass through the atomization flameholder (6) It is atomized three times, high speed ejection multiply rotating jet carries out premixed combustion in the form of turbulent flow.
- 4. a kind of gas-liquid combustible combustion device according to claim 3, it is characterised in that: the atomization flameholder (6) it is made of atomization cylinder (7) compatible with atomization aeration pipeline (5) inner end diameter, in atomization cylinder (7) The a plurality of spiral atomization chamber (8) axially extending along atomization cylinder (7), the spiral atomization chamber (8) are provided in axial walls Along atomization cylinder (7) circumference uniform distribution, the cylindrical spray chamber (11) is entered by the spiral fog water content (4) and carries out one After secondary atomization, the atomization is sprayed after the gas-liquid combustible and atomization aeration fluid secondary-atomizing that the ejiction opening (1) sprays During oxygenation pipeline (5), be atomized three times by the spiral atomization chamber (8), high speed ejection multiply rotating jet with Turbulent flow form carries out premixed combustion.
- 5. a kind of gas-liquid combustible combustion device according to any one of claim 2 to 4, it is characterised in that: the atomization Spray core (3) includes spray core body (9) and gas-liquid combustible conveyance conduit (10), and it is flammable that the spray core body (9) is arranged in the gas-liquid The output end of object conveyance conduit (10), the spiral fog water content (4) are arranged on the spray core body (9), the atomization spray core (3) a part of gas-liquid combustible conveyance conduit (10) socket being connected by the spray core body (9) and with the spray core body (9) In the nozzle set (2).
- 6. a kind of gas-liquid combustible combustion device according to claim 5, it is characterised in that: the spray core body (9) from The cylindrical spray chamber (11) axially extended is additionally provided with by end, gas-liquid combustible is along described cylindrical spray chamber (11) circumference Spiral rotating is sprayed from the ejiction opening (1).
- 7. a kind of gas-liquid combustible combustion device according to claim 6, it is characterised in that: in the spray core body (9) and institute State gas-liquid combustible conveyance conduit (10) junction be provided perpendicular to spray core body (9) longitudinal center line gas-liquid it is flammable Object delivery outlet (12), the gas-liquid for inputting the gas-liquid combustible combustion device by the gas-liquid combustible conveyance conduit (10) is flammable Object is sprayed by the gas-liquid combustible delivery outlet (12) in the cavity of the spray core body (9) and the nozzle set (2), and Under the promotion of the gas-liquid combustible of subsequent input, by the spiral fog water content (4) enter the cylindrical spray chamber (11) into It is sprayed after row primary atomization from the ejiction opening (1), the gas-liquid combustible and atomization aeration pipe that the ejiction opening (1) sprays The atomization aeration fluid mixing of road (5) conveying carries out secondary-atomizing.
- 8. a kind of gas-liquid combustible combustion device according to claim 6, it is characterised in that: in the atomization aeration pipeline (5) connecting flange (13) are provided on atomization aeration fluid input, in the connecting flange (13) and the atomization spray core (3) it is provided with transitional connection pipe (14) on the atomization aeration pipeline (5) between, the gas-liquid combustible conveyance conduit (10) Input terminal it is fixed pass through the connecting flange (13), the atomization aeration pipeline (5) passes through the transitional connection pipe (14) It is connect with exterior atomization oxygenation fluid-transporting tubing, first flow adjusting is provided on the gas-liquid combustible conveyance conduit (10) Device (15-1) and first flow measure device (16-1), and second flow adjusting is also equipped on the atomization aeration pipeline (5) Device (15-2) and second flow metering device (16-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820520621.6U CN208205007U (en) | 2018-04-12 | 2018-04-12 | A kind of gas-liquid combustible combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820520621.6U CN208205007U (en) | 2018-04-12 | 2018-04-12 | A kind of gas-liquid combustible combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208205007U true CN208205007U (en) | 2018-12-07 |
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ID=64523029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820520621.6U Expired - Fee Related CN208205007U (en) | 2018-04-12 | 2018-04-12 | A kind of gas-liquid combustible combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208205007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658580A (en) * | 2022-03-15 | 2022-06-24 | 上海工程技术大学 | Air-entraining jet nozzle with swirl groove on head guide |
-
2018
- 2018-04-12 CN CN201820520621.6U patent/CN208205007U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658580A (en) * | 2022-03-15 | 2022-06-24 | 上海工程技术大学 | Air-entraining jet nozzle with swirl groove on head guide |
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Granted publication date: 20181207 Termination date: 20210412 |