阅读说明：本技术 一种醇基燃料燃烧器 (Alcohol-based fuel burner ) 是由 白净 高航 白东豪 方书起 魏源霞 于 2019-11-20 设计创作，主要内容包括：本发明涉及一种醇基燃料燃烧器,其工作分为启动雾化燃烧阶段和连续气化燃烧阶段,启动雾化燃烧阶段为打开针阀后燃料流经智能控制系统,后流入雾化喷嘴进行喷射雾化,被雾化后的燃料经脉冲打火装置点燃成功后进行燃烧。所述连续气化燃烧阶段为燃料雾化燃烧下的火焰加热在气化螺旋管流动的燃料,经引射器喷出气化燃烧,本发明提供的一种醇基燃料燃烧器,不需外加设备辅助气化燃烧,边气化边燃烧,燃烧运行稳定,燃烧效率高。(The invention relates to an alcohol-based fuel burner which comprises a starting atomization burning stage and a continuous gasification burning stage, wherein in the starting atomization burning stage, after a needle valve is opened, fuel flows into an atomization nozzle for injection atomization through an intelligent control system, and the atomized fuel is burnt after being successfully ignited through a pulse ignition device. The continuous gasification combustion stage is to heat the fuel flowing in the gasification spiral pipe by the flame under the fuel atomization combustion, and the fuel is sprayed out by the ejector for gasification combustion.)

1. An alcohol-based fuel burner is characterized by comprising a combustion chamber, an intelligent control system, a fuel tank and a tail liquid collecting part, wherein the combustion chamber is stably supported by a fixed mounting frame, the intelligent control system is arranged on the wall surface of the fixed mounting frame below the combustion chamber, one end of the fuel tank is communicated with the intelligent control system through a fuel supply pipe, a needle valve is installed on the fuel supply pipe, the combustion chamber comprises a conical heat-insulating plate, the conical heat-insulating plate is installed at the upper end of the fixed mounting frame, a gasification spiral pipe which is spirally distributed is arranged on the inner wall of the conical heat-insulating plate, the inlet of the gasification spiral pipe is arranged at the upper part, the outlet of the gasification spiral pipe is arranged at the lower part, a gas collecting ring pipe is fixedly arranged at the bottom of the conical heat-insulating plate, a communicated ejector group is distributed on the, the intelligent control system is provided with three outlet fuel pipelines which are respectively connected with a low-pressure atomizing nozzle inlet, a gas collecting ring pipe inlet and a gasification spiral pipe inlet, the outlet fuel pipes are respectively connected with an electromagnetic valve, the electromagnetic valves are electrically connected with the intelligent control system, and the electromagnetic valves are electrically connected with a firepower adjusting knob arranged on the intelligent control system; the intelligent control system also comprises a pulse ignition unit and an ion type flameout protection unit, wherein an ignition needle of the pulse ignition unit is fixed above the atomizing nozzle, the pulse ignition unit is electrically connected with an ignition switch arranged on the intelligent control system, a flame detection needle of the ion type flameout protection unit is fixed above the ejector and the atomizing nozzle, and the ion type flameout protection unit is electrically connected with the intelligent control system; and a fan is arranged below the intelligent control system and is electrically connected with a wind power adjusting knob arranged on the intelligent control system.

2. The alcohol-based fuel burner of claim 1, wherein the fan blows air through an air inlet provided in a side wall of the tapered heat shield, the air inlet being inclined with respect to the side wall of the tapered heat shield.

3. The alcohol-based fuel burner of claim 1, wherein the other end of the fuel tank is communicated with a fuel replenishing pipeline, a ball float valve is arranged at the interface of the fuel replenishing pipeline and the fuel tank, and a certain space is reserved inside the fuel tank and is filled with 0.5MPa of nitrogen.

4. An alcohol-based fuel burner as claimed in claim 1, wherein the conical heat shield is shaped to match the low pressure atomising nozzle atomisation area.

5. The alcohol-based fuel burner of claim 1, wherein the tail liquid collecting portion comprises a tail liquid collecting disc, the tail liquid collecting disc is arranged above the gas collecting ring pipe and provided with a sealing cover, and the conical heat insulating plate is provided with a drainage groove on the inner wall, and the drainage groove extends to the tail liquid collecting disc.

6. An alcohol-based fuel burner as claimed in claim 1, wherein a filter screen is provided at the junction of the fuel tank and the fuel supply pipe.

7. An alcohol-based fuel burner as claimed in claim 1, further comprising a plurality of self-commissioning brackets mounted at the upper end of the fixed mounting bracket extending into the interior of the combustion chamber.

8. An alcohol-based fuel burner as claimed in claim 1, wherein the low pressure atomiser nozzle is a swirl atomiser nozzle.

9. The alcohol-based fuel burner of claim 1, wherein the eductor assembly is uniformly disposed on the gas collection annulus, the eductor assembly including 6 eductor members.

10. An alcohol-based fuel burner as claimed in claim 1, wherein said low pressure atomizing nozzle is centrally disposed within said gas collecting annulus and both are horizontally disposed at the lower end face of said conical insulating plate.

Technical Field

The invention relates to a stove, in particular to an alcohol-based fuel burner.

Background

The alcohol-based liquid fuel is mainly mixed fuel mainly comprising methanol and ethanol which are discarded after industrial use, and has the advantages of wide source, low price, convenient use and environmental friendliness. Therefore, the method has wide application prospect, and is particularly suitable for occasions such as small restaurants, large hotels, dining halls and the like. However, the development of alcohol-based burners has been severely delayed, which has limited the large-scale application of alcohol-based fuels. At present, more common alcohol-based fuel burners, alcohol-based fuel burners and the like are used, and the working principle of the burners is that alcohol-based fuel is directly sprayed out, atomized or gasified and then mixed with air for combustion. The atomization combustion needs to strictly control the atomization quality, otherwise, insufficient combustion can be caused, harmful gas is generated, and therefore, the burner adopting the atomization combustion is not widely popularized. At present, gasification combustion is mostly adopted, liquid fuel needs to be gasified in advance, if an additional gasification device is used for gasification, the overall energy consumption of the combustor is increased, so that the alcohol-based fuel combustor for gasification combustion has high requirements on the carburetor, and therefore, reasonable arrangement of the gasification device and optimization of the structure of the combustor are key technologies for large-scale application. Reasonable combustor structure setting is favorable to controlling the combustion mode of alcohol group fuel, improves the whole combustion efficiency of combustor.

Disclosure of Invention

The invention aims to solve the technical problem of providing an alcohol-based fuel burner which mainly needs no additional equipment for auxiliary gasification and combustion, can be used for simultaneously gasifying and combusting, has stable combustion operation and high combustion efficiency.

The invention realizes the technical problems through the following technical scheme:

an alcohol-based fuel burner comprises a combustion chamber, an intelligent control system, a fuel tank and a tail liquid collecting part, wherein the combustion chamber is stably supported by a fixed mounting frame, the intelligent control system is arranged on the wall surface of the fixed mounting frame below the combustion chamber, one end of the fuel tank is communicated with the intelligent control system through a fuel supply pipe, a needle valve is installed on the fuel supply pipe, the combustion chamber comprises a conical heat-insulating plate, the conical heat-insulating plate is installed at the upper end of the fixed mounting frame, gasification spiral pipes which are spirally distributed are arranged on the inner wall of the conical heat-insulating plate, the inlet and the outlet of the gasification spiral pipes are arranged at the upper part, a gas collecting ring pipe is fixedly arranged at the bottom of the conical heat-insulating plate, a communicated ejector group is distributed on the gas collecting ring pipe, a low-pressure atomizing nozzle is fixedly arranged at the central position of the gas, the device is respectively connected with a low-pressure atomizing nozzle inlet, a gas collecting ring pipe inlet and a gasification spiral pipe inlet, an electromagnetic valve is respectively connected on an outlet fuel pipe, the electromagnetic valves are electrically connected with an intelligent control system, and the electromagnetic valves are electrically connected with a firepower adjusting knob arranged on the intelligent control system; the intelligent control system also comprises a pulse ignition unit and an ion type flameout protection unit, wherein an ignition needle of the pulse ignition unit is fixed above the atomizing nozzle, the pulse ignition unit is electrically connected with an ignition switch arranged on the intelligent control system, a flame detection needle of the ion type flameout protection unit is fixed above the ejector and the atomizing nozzle, and the ion type flameout protection unit is electrically connected with the intelligent control system; and a fan is arranged below the intelligent control system and is electrically connected with a wind power adjusting knob arranged on the intelligent control system.

Furthermore, the fan supplies air through an air inlet arranged on the side wall of the conical heat insulation plate, and the air inlet is inclined relative to the side wall of the conical heat insulation plate.

Furthermore, the other end of the fuel tank is communicated with a fuel supplement pipeline, a ball float valve is arranged at the joint of the fuel supplement pipeline and the fuel tank, and a certain space is reserved in the fuel tank and is filled with 0.5MPa nitrogen.

Further, the shape of the conical heat insulation plate is matched with the atomizing area of the low-pressure atomizing nozzle.

Further, the tail liquid collecting part comprises a tail liquid collecting disc, the tail liquid collecting disc is arranged above the gas collecting ring pipe and is provided with a sealed sealing cover, a drainage groove is formed in the inner wall of the conical heat insulating plate, and the drainage groove extends to the tail liquid collecting disc.

Furthermore, a filter screen is arranged at the joint of the fuel tank and the fuel supply pipe.

Further, still include a plurality of self-debugging supports, self-debugging support mounting is in the upper end of fixed mounting bracket, extends to the inside of combustion chamber.

Further, the low-pressure atomizing nozzle is a rotational flow type atomizing nozzle.

Furthermore, the ejector group is uniformly arranged on the gas collecting ring pipe and comprises 6 ejectors.

Furthermore, the low-pressure atomizing nozzle is arranged in the center of the gas collecting ring pipe, and the installation positions of the low-pressure atomizing nozzle and the gas collecting ring pipe are horizontal and are arranged on the lower end face of the conical heat insulation plate.

Advantageous effects

The fuel tank of the invention is pressurized to about 0.5MPa by nitrogen, the low-pressure atomizing nozzle is sprayed and atomized by utilizing the self pressure of the fuel tank, no additional pressurization equipment is needed, and the overall energy consumption of the combustor is reduced. The low-pressure atomizing nozzle is adopted for atomizing, the atomizing area is in a hollow conical shape, the arranged conical heat insulation plate is matched with the atomizing area, the gasification spiral pipe is coiled on the conical heat insulation plate, and fuel in the gasification spiral pipe can obtain more heat during atomizing combustion, so that sufficient fuel can be rapidly provided for the gasification combustion. The tail liquid collecting part designed by the invention avoids the waste of fuel and the volatilization to the atmosphere, and can be reused. The air inlet mode used by the invention ensures that the air is in a vortex shape in the combustor, so that the fuel and the air are uniformly mixed, and the combustion efficiency is increased. The alcohol-based fuel burner is a civil alcohol-based fuel burner, and is simple in structure and stable in operation.

Drawings

FIG. 1 is a schematic structural view of an alcohol-based fuel burner of the present invention.

Fig. 2 is a plan view of the inside of the combustion chamber of the present invention.

Fig. 3 is a schematic view of the air inlet structure of the present invention.

Figure 4 is a schematic diagram of the structure of a gas collection loop of the present invention.

Fig. 5 is a schematic structural diagram of an atomizing nozzle pulse ignition device and an ion type flameout protection device of the invention.

FIG. 6 is a schematic view of a fixed structure of the gasification coil.

FIG. 7 is a logic circuit schematic diagram of an intelligent control system of the alcohol-based burner.

Detailed Description

An alcohol-based fuel burner comprises a combustion chamber, an intelligent control system 19, a fuel tank 28 and a tail liquid collecting part, wherein the combustion chamber is stably supported through a fixed mounting frame, the intelligent control system 19 is arranged on the wall surface of the fixed mounting frame below the combustion chamber, one end of the fuel tank 28 is communicated with the intelligent control system 19 through a fuel supply pipe 27, a filter screen 3 is arranged at the joint of the fuel tank 28 and the fuel supply pipe 27, the other end of the fuel tank 28 is communicated with a fuel supplementing pipeline 1, a float ball valve 2 is arranged at the joint of the fuel supplementing pipeline 1 and the fuel tank 28, a certain space is reserved inside the fuel tank 28 and is filled with 0.5MPa nitrogen, and the self pressure (N) of the fuel₂Pressurization) can be carried out, additional pressurization equipment is not needed, and low-energy-consumption work is realized; the fuel supply pipe 27 is provided with a needle valve 4, and the needle valve 4 is used for controlling the outflow and flow of fuel. The combustion chamber includes toper heat insulating board 12, and toper heat insulating board 12 is installed in the upper end of fixed mounting bracket, be equipped with the gasification spiral pipe 7 that is the spiral distribution on the inner wall of toper heat insulating board 12, gasification spiral pipe 7 is fixed at the inner wall of toper heat insulating board 12 through the mounting as shown in fig. 6, the import 6 of gasification spiral pipe 7 is last, and export 8 is under, and toper heat insulating board 12 bottom sets firmly the gas collection ring canal 13 as shown in fig. 4, it has the ejector group of intercommunication to distribute on the gas collection ring canal 13, and the ejector group includes 6 ejectors 10. The central position of the gas collecting ring is fixedly provided with a low-pressure atomizing nozzle 10, and the installation positions of the low-pressure atomizing nozzle and the low-pressure atomizing nozzle are horizontal and are arranged on the lower end surface of the conical heat insulating plate 12. The low pressure atomizing nozzle 10 is the spiral-flow type atomizing nozzle, the shape of toper heat insulating board 12 and the regional phase-match of low pressure atomizing nozzle 10 atomizing are hollow toper because of the nozzle atomizing is regional, and the shape of toper heat insulating board 12 and its phase-match, the fuel that flows in the lateral wall gasification spiral pipe 7 of flame heating and the heated body of top during the burning make the fuel in the gasification spiral pipe 7 change and reach the steam state, improve the fuel efficiency of whole combustor. The upper inlet of the gasification spiral pipe 7 is connected to an intelligent control system 19, the intelligent control system 19 is provided with three outlet fuel pipelines 17,18 and 25 which are respectively connected with the inlet of the low-pressure atomizing nozzle 10 and the gas collecting ring pipe13 inlet is connected with inlet of gasification spiral pipe 7, outlet fuel pipes 17,18,25 are respectively connected with an electromagnetic valve 5,15,16, the electromagnetic valves 5,15,16 are electrically connected with an intelligent control system 19, the electromagnetic valves 5,15,16 are all electrically connected with a firepower adjusting knob 24 arranged on the intelligent control system 19; the intelligent control system 19 further comprises a pulse ignition unit and an ion type flameout protection unit, an ignition needle 32 of the pulse ignition unit is fixed above the atomizing nozzle, the pulse ignition unit is electrically connected with an ignition switch 21 arranged on the intelligent control system 19, a flame detection needle 33 of the ion type flameout protection unit is fixed above the ejector 10 and the atomizing nozzle, and the ion type flameout protection unit is electrically connected with the intelligent control system 19; fan 23 is installed to intelligent control system 19 below, fan 23 is connected with the wind-force adjust knob 21 electricity that sets up on intelligent control system 19, and fuel is through atomizing burning earlier, and the gasification of back heating fuel lasts and gasifies the burning, improves the combustion quality, forms gasification burning and is leading, and atomizing burning is the combustion mode of assisting.

As shown in fig. 3, the fan 23 blows air through the air inlet 14 formed in the sidewall of the conical heat insulation plate 12, the air inlet 14 is inclined relative to the sidewall of the conical heat insulation plate 12, the air enters the gap between the clamping plates of the conical heat insulation plate 12, and is sprayed into the inner space from the hole drilled in the inner wall along a certain inclination angle, so that cyclone is formed, and the combustion efficiency is improved.

The tail liquid collecting part comprises a tail liquid collecting disc 31, the tail liquid collecting disc 31 is arranged above the gas collecting ring pipe 13 and is provided with a sealing cover, the drainage groove 30 is formed in the inner wall of the conical heat insulation plate 12, the drainage groove 30 extends to the tail liquid collecting disc 31, the tail liquid collecting disc 31 is arranged at the bottom of the combustor, the needle valve 4 is closed, after the combustor stops burning, the fuel which is sprayed out from the nozzle and the ejector 10 and is not burnt completely in the air is stained with the inner wall to flow to the disc along the drainage groove 30, and then the disc is provided with a cover-shaped structure which can be opened and closed to prevent the fuel from evaporating.

The self-adjusting type gas burner is characterized by further comprising a plurality of self-adjusting type supports 9, wherein the self-adjusting type supports 9 are installed at the upper end of the fixed installation frame and extend into the combustion chamber.