CN104062394A - Gaseous-phase Bunsen burner laminar flame propagation speed measurement device and measurement method for liquid fuel - Google Patents
Gaseous-phase Bunsen burner laminar flame propagation speed measurement device and measurement method for liquid fuel Download PDFInfo
- Publication number
- CN104062394A CN104062394A CN201410233209.2A CN201410233209A CN104062394A CN 104062394 A CN104062394 A CN 104062394A CN 201410233209 A CN201410233209 A CN 201410233209A CN 104062394 A CN104062394 A CN 104062394A
- Authority
- CN
- China
- Prior art keywords
- liquid fuel
- bunsen burner
- flame propagation
- propagation velocity
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 65
- 239000007788 liquid Substances 0.000 title claims abstract description 59
- 238000005259 measurement Methods 0.000 title claims description 12
- 238000000691 measurement method Methods 0.000 title abstract description 6
- 239000007792 gaseous phase Substances 0.000 title 1
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 238000001704 evaporation Methods 0.000 claims abstract description 24
- 230000008020 evaporation Effects 0.000 claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 229910018487 Ni—Cr Inorganic materials 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 5
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 239000002737 fuel gas Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000010892 electric spark Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims 1
- 239000010453 quartz Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000007921 spray Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Regulation And Control Of Combustion (AREA)
Abstract
本发明提供了液体燃料气相本生灯层流火焰传播速度测量装置及其测量方法，该装置包括本生灯燃烧器，本生灯燃烧器分别连接有测温显示器（热电偶）、冷态空气加热系统和液体燃料蒸发系统，其中液体燃料蒸发系统通过橡皮管道与注射泵相连，冷态空气加热系统与外部空气相通；本生灯燃烧器旁装有火焰图像采集与处理装置。装置简易、便于操作、成本低廉，有助于不同液体燃料燃烧特性的基础对比，支撑喷雾燃烧系统的燃料快速选取。本发明的测量方法采用高速度的数字相机，连续拍摄火焰锥面，根据当前混合气速度，运用火焰图像余弦定理方法计算液体燃料气相本生灯层流火焰传播速度，该方法是基于火焰传播速度的定义直接给出的方法，简单有效。
The invention provides a liquid fuel gas-phase Bunsen burner laminar flame propagation velocity measuring device and a measuring method thereof. Heating system and liquid fuel evaporation system, wherein the liquid fuel evaporation system is connected to the injection pump through rubber pipes, and the cold air heating system is connected to the outside air; a flame image acquisition and processing device is installed next to the Bunsen burner. The device is simple, easy to operate, and low in cost, which is helpful for the basic comparison of the combustion characteristics of different liquid fuels, and supports the rapid selection of fuel for the spray combustion system. The measurement method of the present invention adopts a high-speed digital camera to continuously photograph the flame cone, and uses the flame image cosine law method to calculate the liquid fuel gas-phase Bunsen burner laminar flame propagation velocity according to the current gas mixture velocity. The method is based on the flame propagation velocity The method given directly by the definition is simple and effective.
Description
技术领域 technical field
本发明涉及液体燃料气相层流燃烧领域，具体是一种液体燃料气相本生灯层流火焰传播速度测量装置及其测量方法。 The invention relates to the field of liquid fuel gas-phase laminar flow combustion, in particular to a liquid fuel gas-phase Bunsen burner laminar flame propagation velocity measurement device and a measurement method thereof.
背景技术 Background technique
目前，我国以液体燃料为推进剂的运载工具保有量大幅增加，能源与环境问已经成为人们的关注焦点。随着液体燃料价格上涨，全球变暖以及其它一系列环境问题日益突出，必须对液体燃料的品质进行改造来满足节能与环保的要求。对新型合成液体燃料燃烧基础研究有助于喷雾燃烧系统燃料的选取。研究液体燃料气相层流燃烧的目的是了解液体燃料反应动力学特性，液体燃料气相层流火焰传播速度就是统观反应动力学的体现，它不仅在考察火焰稳定性方面有很大实用意义，而且在研究传播理论方面也具有很大理论价值。 At present, the number of vehicles using liquid fuel as propellant has increased significantly in my country, and energy and environment issues have become the focus of attention. As the price of liquid fuel rises, global warming and a series of other environmental problems become increasingly prominent, the quality of liquid fuel must be improved to meet the requirements of energy saving and environmental protection. The basic research on the combustion of new synthetic liquid fuels is helpful to the selection of fuel for spray combustion systems. The purpose of studying liquid fuel gas-phase laminar combustion is to understand the kinetic characteristics of liquid fuel gas-phase laminar flow. The flame propagation velocity of liquid fuel gas-phase laminar flow is the embodiment of overall reaction kinetics. It also has great theoretical value in the study of communication theory.
迄今为止公布的文献资料（论文、报告和专利）通过本生灯对层流火焰传播速度的研究主要集中在气体燃料方面，液体燃料的层流火焰传播速度主要通过定容燃烧弹试验装置进行研究，定容燃烧弹试验装置虽然能够比较精确的测量层流火焰传播速度但其结构复杂、成本高，不易实现。本发明通过简易加热装置对液体燃料进行蒸发、混合，获得混合燃气，混合燃气经过出口直径可变的本生灯燃烧器进行燃烧，从而通过本生灯火焰法对液体燃料气相层流火焰传播速度进行测量，该系统结构简易、操作简单、成本低廉；结合基于数字图像处理技术的非接触式层流火焰传播速度测量方法，该系统具有测量精度高的特点。 The literature (papers, reports and patents) published so far has mainly focused on gaseous fuels through Bunsen burner research on laminar flame propagation velocity, and the laminar flame propagation velocity of liquid fuels has been mainly studied through constant volume incendiary bomb test equipment. , although the constant volume incendiary bomb test device can measure the laminar flame propagation velocity more accurately, but its structure is complicated, the cost is high, and it is difficult to realize. The invention evaporates and mixes the liquid fuel through a simple heating device to obtain a mixed gas, and the mixed gas is burned through a Bunsen burner with a variable outlet diameter, so that the gas-phase laminar flame propagation velocity of the liquid fuel is controlled by the Bunsen burner flame method The system has simple structure, simple operation and low cost; combined with the non-contact laminar flame propagation velocity measurement method based on digital image processing technology, the system has the characteristics of high measurement accuracy.
发明内容 Contents of the invention
本发明为了解决现有技术的问题，提供了一种液体燃料气相本生灯层流火焰传播速度测量装置及其测量方法 In order to solve the problems of the prior art, the present invention provides a liquid fuel gas-phase Bunsen burner laminar flame propagation velocity measurement device and its measurement method
本发明包括本生灯燃烧器，本生灯燃烧器分别连接有测温显示器（热电偶）、冷态空气加热系统和液体燃料蒸发系统，其中液体燃料蒸发系统通过橡皮管道与注射泵相连，冷态空气加热系统与外部空气相通；本生灯燃烧器旁装有火焰图像采集与处理装置。 The invention includes a Bunsen burner, which is respectively connected with a temperature measuring display (thermocouple), a cold air heating system and a liquid fuel evaporation system, wherein the liquid fuel evaporation system is connected with a syringe pump through a rubber pipe, and the cooling The state air heating system communicates with the outside air; a flame image acquisition and processing device is installed next to the Bunsen burner.
所述的冷态空气加热系统液体燃料蒸发管道以及与液体燃料蒸发管道连接的第一点调压器。 The liquid fuel evaporation pipeline of the cold air heating system and the first point pressure regulator connected with the liquid fuel evaporation pipeline.
所述的液体燃料蒸发管道倾斜放置，与水平面夹角为10-20°，从外到内依次由保温陶瓷管、石英玻璃管、镍铬电加热丝组成，其中镍铬电加热丝采用螺旋线缠绕方式并采用前密后疏的布置方式。 The liquid fuel evaporation pipeline is placed obliquely, with an included angle of 10-20° to the horizontal plane, and is composed of heat-insulating ceramic tubes, quartz glass tubes, and nickel-chromium electric heating wires in sequence from outside to inside, wherein the nickel-chromium electric heating wires are helical wires The winding method adopts the arrangement method of dense at the front and sparse at the back.
所述的冷态空气加热系统包括依次连接的稳压立式储气罐、浮子流量计以及冷态空气加热管道，其中稳压立式储气罐与外部空气相通，冷态空气加热管道与本生灯燃烧器相连，冷态空气加热管道还连接有第二电调压器。 The cold air heating system includes a vertical stabilized air storage tank, a float flowmeter and a cold air heating pipeline connected in sequence, wherein the vertical stabilized air storage tank communicates with the outside air, and the cold air heating pipeline communicates with this The lamp burner is connected, and the cold air heating pipeline is also connected with a second electric voltage regulator.
所述的冷态空气加热管道从内到外依次为加热铜管中、石英玻璃管、保温陶瓷管；所述的浮子流量器空气流量为0L/h～600L/h；所述的第二电调压器调压范围为0～250V。 The cold air heating pipes are heating copper tubes, quartz glass tubes, and thermal insulation ceramic tubes from inside to outside; the air flow rate of the float flowmeter is 0L/h～600L/h; the second electric The voltage regulating range of the voltage regulator is 0~250V.
所述的本生灯燃烧器出口为螺旋可替换结构，出口内径为5mm～15mm，不同出口直径间隔1mm。。 The outlet of the Bunsen burner is a replaceable spiral structure, the inner diameter of the outlet is 5 mm to 15 mm, and the interval between different outlet diameters is 1 mm. .
所述的火焰图像采集与处理装置包括高速摄像机以及与高速摄像机相连的计算机8。 The flame image collection and processing device includes a high-speed camera and a computer 8 connected to the high-speed camera.
所述的注射泵流量可控，最大燃烧流量为500ml/h。 The flow rate of the syringe pump is controllable, and the maximum combustion flow rate is 500ml/h.
本发明还提供了一种液体燃料气相本生灯层流火焰传播速度测量装置的测量方法，包括以下步骤： The present invention also provides a measurement method of a liquid fuel gas phase Bunsen burner laminar flame propagation velocity measurement device, comprising the following steps:
1）打开注射泵，设定燃料流量； 1) Turn on the injection pump and set the fuel flow;
2）打开液体燃料蒸发管道电源，选择第一电调压器电压，调节液体燃料蒸发管道内的压力； 2) Turn on the power supply of the liquid fuel evaporation pipeline, select the voltage of the first electric voltage regulator, and adjust the pressure in the liquid fuel evaporation pipeline;
3）打开空气稳压立式储气灌，利用浮子流量计选择空气流量； 3) Open the air stabilized vertical air storage tank, and use the rotameter to select the air flow;
4）打开冷态空气加热管道电源，选择第二电调压器电压，调节冷态空气加热管道内的压力； 4) Turn on the power supply of the cold air heating pipeline, select the voltage of the second electric voltage regulator, and adjust the pressure in the cold air heating pipeline;
5）使用电火花点火器点火，在本生灯出口形成稳定的层流火焰锋面； 5) Use an electric spark igniter to ignite and form a stable laminar flame front at the outlet of the Bunsen burner;
6）利用电子显示器读出本生灯层流火焰温度，使其温度稳定，打开高速相机捕获如图4所示的本生灯出口层流火焰锋面； 6) Use the electronic display to read the temperature of the laminar flame of the Bunsen burner to stabilize the temperature, and turn on the high-speed camera to capture the laminar flame front at the exit of the Bunsen burner as shown in Figure 4;
7）对本生灯火焰图像进行包括图像剪裁、灰度化、灰度拉伸、边缘提取、二值化、确定锥角、计算角度的批量处理；所述数字图像处理程序采用分段线性灰度变换（GST）处理技术对火焰图像进行灰度处理式中 为输入图像的像素值，为输出图像的像素值；[s1] 7) Perform batch processing on the Bunsen burner flame image, including image clipping, grayscale, grayscale stretching, edge extraction, binarization, determination of cone angle, and angle calculation; the digital image processing program uses piecewise linear grayscale Transformation (GST) processing technology for grayscale processing of flame images is the pixel value of the input image, is the pixel value of the output image; [s1]
8）根据公式计算在该条件下的层流火焰传播速度，式中表示锥形火焰面上法向火焰传播速度，燃气出口速度，表示火焰面顶角。 8) According to the formula Calculate the laminar flame propagation velocity under this condition, where represents the normal flame propagation velocity on the conical flame surface, gas outlet velocity, Indicates the top angle of the flame surface.
本发明有益效果在于： The beneficial effects of the present invention are:
1、本发明提供的装置简易、便于操作、成本低廉，有助于不同液体燃料燃烧特性的基础对比，支撑喷雾燃烧系统的燃料快速选取。 1. The device provided by the present invention is simple, easy to operate, and low in cost, which is helpful for the basic comparison of the combustion characteristics of different liquid fuels, and supports the rapid selection of fuel for the spray combustion system.
2、采用高速度的数字相机，连续拍摄火焰锥面，根据当前混合气速度，运用火焰图像余弦定理方法计算液体燃料气相本生灯层流火焰传播速度，该方法是基于火焰传播速度的定义直接给出的方法，简单有效。 2. Use a high-speed digital camera to continuously shoot the flame cone. According to the current mixed gas velocity, use the flame image cosine law method to calculate the liquid fuel gas phase Bunsen burner laminar flame propagation velocity. This method is based on the definition of flame propagation velocity directly The method given is simple and effective.
3、通过改变输入参数，测量液体燃料的贫油点火、熄火极限。 3. Measure lean ignition and flameout limits of liquid fuels by changing input parameters.
附图说明 Description of drawings
图1为本发明的工作流程示意图。 Figure 1 is a schematic diagram of the workflow of the present invention.
图2为本发明提供的装置结构示意图。 Fig. 2 is a schematic structural diagram of the device provided by the present invention.
图3为可变管口内径本生灯结构图。 Fig. 3 is a structure diagram of a Bunsen burner with a variable nozzle inner diameter.
图4为采用分段线性灰度变换（GST）技术灰度图像处理图。 Figure 4 is a grayscale image processing diagram using piecewise linear grayscale transform (GST) technology.
图5为Robert算子边缘化分析图。 Figure 5 is an analysis diagram of the marginalization of the Robert operator.
图6为内锥角计算图。 Figure 6 is a calculation diagram of the inner cone angle.
图7为不同温度、当量比层流火焰传播速度变化曲线。 Fig. 7 is the variation curve of laminar flame propagation velocity at different temperatures and equivalence ratios.
图8为贫油点火、熄火极限随液体燃料流量变化曲线。 Fig. 8 is the variation curve of lean ignition and flameout limit with liquid fuel flow rate.
图9为贫油点火、熄火极限随混气温度变化曲线。 Fig. 9 is the variation curve of lean ignition and flameout limit with mixture temperature.
具体实施方式 Detailed ways
下面以航空煤油为测量对象，结合附图和具体实施例对本发明作进一步说明。 Taking aviation kerosene as the measurement object below, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments.
本发明提供的装置如图1所示，包括本生灯燃烧器5，本生灯燃烧器5分别连接有测温显示器6、冷态空气加热系统和液体燃料蒸发系统，其中液体燃料蒸发系统通过橡皮管道2与注射泵1相连，冷态空气加热系统与外部空气相通；本生灯燃烧器5旁装有火焰图像采集与处理装置。 The device provided by the present invention is shown in Figure 1, comprises Bunsen burner burner 5, and Bunsen burner burner 5 is respectively connected with temperature measuring display 6, cold state air heating system and liquid fuel evaporation system, and wherein liquid fuel evaporation system passes through The rubber pipe 2 is connected with the injection pump 1, and the cold air heating system is connected with the outside air; a flame image acquisition and processing device is installed beside the Bunsen burner 5.
所述的冷态空气加热系统液体燃料蒸发管道3以及与液体燃料蒸发管道3连接的第一点调压器4。 The liquid fuel evaporation pipeline 3 of the cold air heating system and the first point pressure regulator 4 connected with the liquid fuel evaporation pipeline 3 .
所述的液体燃料蒸发管道3倾斜放置，与水平面夹角为10-20°。液体燃料蒸发管道3从外到内依次由保温陶瓷管、石英玻璃管、镍铬电加热丝组成，其中镍铬电加热丝采用螺旋线缠绕方式并采用前密后疏的布置方式。 The liquid fuel evaporation pipeline 3 is placed obliquely, and the included angle with the horizontal plane is 10-20°. The liquid fuel evaporation pipeline 3 is composed of thermal insulation ceramic tubes, quartz glass tubes, and nickel-chromium electric heating wires from the outside to the inside.
所述的冷态空气加热系统包括依次连接的稳压立式储气罐12、浮子流量计11以及冷态空气加热管道10，其中稳压立式储气罐12与外部空气相通，冷态空气加热管道10与本生灯燃烧器5相连，冷态空气加热管道10还连接有第二电调压器9。 The cold air heating system includes a vertical pressure-stabilizing air storage tank 12, a float flowmeter 11, and a heating pipe for cold air 10 connected in sequence, wherein the vertical pressure-stabilizing air storage tank 12 communicates with the outside air, and the cold air The heating pipeline 10 is connected with the Bunsen burner burner 5 , and the cold air heating pipeline 10 is also connected with the second electric voltage regulator 9 .
所述的冷态空气加热管道10从内到外依次为加热铜管中、石英玻璃管、保温陶瓷管；所述的浮子流量器空气流量为0L/h～600L/h；所述的第二电调压器调压范围为0～250V。 The cold air heating pipeline 10 is a heating copper tube, a quartz glass tube, and a thermal insulation ceramic tube from the inside to the outside; the air flow rate of the float flow device is 0L/h～600L/h; the second The voltage regulating range of the electric voltage regulator is 0~250V.
所述的本生灯燃烧器5的结构如图3所示，包括固定底座13，固定底座13上安装有具有内螺纹的本生灯登座14，下部具有外螺纹的本生灯灯管15通过螺纹与本生灯登座14连接。本生灯出口为螺旋可替换结构，出口内径为5mm～15mm。 The structure of the described Bunsen burner 5 is as shown in Figure 3, comprising a fixed base 13, on which a Bunsen burner seat 14 with internal thread is installed, and a Bunsen burner lamp tube 15 with external thread at the bottom Connect with Bunsen burner seat 14 by thread. The outlet of the Bunsen burner is a spiral replaceable structure, and the inner diameter of the outlet is 5mm to 15mm.
所述的火焰图像采集与处理装置包括高速摄像机7以及与高速摄像机7相连的计算机8。 The flame image acquisition and processing device includes a high-speed camera 7 and a computer 8 connected to the high-speed camera 7 .
所述的注射泵1流量可控，最大燃烧流量为500ml/h。 The flow rate of the syringe pump 1 is controllable, and the maximum combustion flow rate is 500ml/h.
本发明工作过程如图1所示，具体包括以下步骤实现： The working process of the present invention is as shown in Figure 1, specifically comprises the following steps and realizes:
（1）打开注射泵，并将燃料流量设定在70ml/h。 (1) Turn on the injection pump and set the fuel flow rate at 70ml/h.
（2）打开液体燃料蒸发管道电源，调节电调压器电压为120V。 (2) Turn on the power supply of the liquid fuel evaporation pipeline, and adjust the voltage of the electric voltage regulator to 120V.
（3）打开空气稳压储气灌，将空气流量调至520L/h。 (3) Turn on the air regulator and adjust the air flow to 520L/h.
（4）打开空气加热管道电源，调节电压器电压为150V。 (4) Turn on the power supply of the air heating pipeline, and adjust the voltage of the voltage regulator to 150V.
（5）使用电火花点火器点火，在本生灯出口形成稳定的层流火焰锋面。 (5) Use an electric spark igniter to ignite, and form a stable laminar flame front at the outlet of the Bunsen burner.
（6）热电偶电子显示器温度稳定在290℃，打开高速相机捕获本生灯出口层流火焰锋面。 (6) The temperature of the thermocouple electronic display is stabilized at 290°C, and the high-speed camera is turned on to capture the laminar flame front at the outlet of the Bunsen burner.
（7）如图4、图5、图6所示，对本生灯火焰图像进行包括图像剪裁、灰度化、灰度拉伸、边缘提取、二值化、确定锥角、计算角度的批量处理，其中图4为采用分段线性灰度变换（GST）技术灰度图像处理图。图5为Robert算子边缘化分析图。图6为内锥角计算图。 (7) As shown in Figure 4, Figure 5, and Figure 6, perform batch processing on the Bunsen burner flame image, including image clipping, grayscale conversion, grayscale stretching, edge extraction, binarization, cone angle determination, and angle calculation , where Fig. 4 is a grayscale image processing diagram using piecewise linear grayscale transform (GST) technology. Figure 5 is an analysis diagram of the marginalization of the Robert operator. Figure 6 is a calculation diagram of the inner cone angle.
（8）根据公式,计算出航空煤油在该条件下的层流火焰传播速度0.88m/s,式中表示锥形火焰面上法向火焰传播速度，燃气出口速度，表示火焰面顶角； (8) According to the formula , calculate the laminar flame propagation velocity of aviation kerosene under this condition to be 0.88m/s, where represents the normal flame propagation velocity on the conical flame surface, gas outlet velocity, Indicates the top angle of the flame surface;
（9）调节空气流量410L/h～740L/h，如图7所示，获得不同当量比层流火焰传播速度的变化曲线； (9) Adjust the air flow rate from 410L/h to 740L/h, as shown in Figure 7, to obtain the change curve of laminar flame propagation velocity with different equivalent ratios;
（10）调节电调压器，使得混气温度在230℃～290℃范围内变化，在同一温度下调节空气流量在410L/h～740L/h范围内变化，如图7所示，获得不同温度下层流火焰传播速度随当量比的变化曲线； (10) Adjust the electric voltage regulator so that the temperature of the mixed gas changes within the range of 230°C to 290°C, and at the same temperature, adjust the air flow rate within the range of 410L/h to 740L/h, as shown in Figure 7, to obtain different Variation curve of laminar flame propagation velocity with equivalence ratio at temperature;
（11）调节燃油流量在10ml/h～70ml/h内变化，获得如图8所示的贫油点火、熄火极限随液体燃料流量变化曲线； (11) Adjust the fuel flow rate to vary within 10ml/h to 70ml/h, and obtain the lean ignition and flameout limit variation curves with liquid fuel flow rate as shown in Figure 8;
（12）燃油流量在65ml/h时，调节电调压器获得混气温度在230℃～290℃范围内变化，获得如图9所示，贫油点火、熄火极限随混气温度变化曲线。 (12) When the fuel flow rate is 65ml/h, adjust the electric voltage regulator to obtain the mixture temperature in the range of 230°C to 290°C. As shown in Figure 9, the lean ignition and flameout limits vary with the mixture temperature.
本发明具体应用途径很多，以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以作出若干改进，这些改进也应视为本发明的保护范围。 There are many specific application approaches of the present invention, and the above description is only a preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, some improvements can also be made without departing from the principles of the present invention. Improvements should also be regarded as the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410233209.2A CN104062394B (en) | 2014-05-29 | 2014-05-29 | Liquid fuel gas phase Bunsen burner laminar flame propagation velocity measurement mechanism and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410233209.2A CN104062394B (en) | 2014-05-29 | 2014-05-29 | Liquid fuel gas phase Bunsen burner laminar flame propagation velocity measurement mechanism and measuring method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104062394A true CN104062394A (en) | 2014-09-24 |
| CN104062394B CN104062394B (en) | 2016-03-02 |
Family
ID=51550201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410233209.2A Expired - Fee Related CN104062394B (en) | 2014-05-29 | 2014-05-29 | Liquid fuel gas phase Bunsen burner laminar flame propagation velocity measurement mechanism and measuring method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104062394B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258116A (en) * | 2014-11-17 | 2016-01-20 | 浙江大学 | Cone-shaped flame burner suitable for researching liquid fuel burning characteristics and method of cone-shaped flame burner |
| CN106568888A (en) * | 2016-10-20 | 2017-04-19 | 浙江大学 | An experiment apparatus having a pressure stabilizing function and used for measuring the laminar flow burning rate of liquid fuel and a method thereof |
| CN107044992A (en) * | 2016-02-05 | 2017-08-15 | 天津出入境检验检疫局工业产品安全技术中心 | A kind of multi-functional CCD visualizations spray igniting composite testing tester |
| CN108982745A (en) * | 2018-08-10 | 2018-12-11 | 西安科技大学 | Coal sample combustion characteristics test device under varying strength jet flame heat radiation |
| CN109520759A (en) * | 2018-10-26 | 2019-03-26 | 南京航空航天大学 | It is a kind of using aviation kerosine as the premix and pre-evaporation Bunsen burner corrosion chamber of fuel |
| CN113533620A (en) * | 2021-07-06 | 2021-10-22 | 中国科学院广州能源研究所 | Self-adaptive liquid fuel high-temperature laminar flame propagation speed measuring device and method |
| CN113531582A (en) * | 2021-06-30 | 2021-10-22 | 东南大学 | Multi-mode metal fuel particle ignition combustion device capable of adjusting atmosphere |
| CN115267042A (en) * | 2022-07-25 | 2022-11-01 | 北京航空航天大学 | A fuel combustion performance testing device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153817B (en) * | 2016-08-12 | 2018-02-27 | 江苏大学 | A kind of Bunsen burner experimental provision for measuring hydrocarbon fuel laminar flame burning velocity |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1744615A1 (en) * | 1990-01-31 | 1992-06-30 | Ленинградский филиал Всесоюзного научно-исследовательского института противопожарной обороны | Device for measuring velocity of flame propagation along surface of material |
| CN101672858A (en) * | 2009-10-10 | 2010-03-17 | 哈尔滨工业大学 | Method for measuring flame propagation velocity of Bunsen burner during combustion process of gaseous fuel |
| CN102253234A (en) * | 2011-06-03 | 2011-11-23 | 哈尔滨工业大学 | Method for measuring flame propagation speed of gas fuel laminar flow under Bunsen burner accurately |
| CN204101526U (en) * | 2014-05-29 | 2015-01-14 | 南京航空航天大学 | Liquid fuel gas phase Bunsen burner laminar flame propagation velocity measurement mechanism |
-
2014
- 2014-05-29 CN CN201410233209.2A patent/CN104062394B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1744615A1 (en) * | 1990-01-31 | 1992-06-30 | Ленинградский филиал Всесоюзного научно-исследовательского института противопожарной обороны | Device for measuring velocity of flame propagation along surface of material |
| CN101672858A (en) * | 2009-10-10 | 2010-03-17 | 哈尔滨工业大学 | Method for measuring flame propagation velocity of Bunsen burner during combustion process of gaseous fuel |
| CN102253234A (en) * | 2011-06-03 | 2011-11-23 | 哈尔滨工业大学 | Method for measuring flame propagation speed of gas fuel laminar flow under Bunsen burner accurately |
| CN204101526U (en) * | 2014-05-29 | 2015-01-14 | 南京航空航天大学 | Liquid fuel gas phase Bunsen burner laminar flame propagation velocity measurement mechanism |
Non-Patent Citations (3)
| Title |
|---|
| PHILIPPE DAGAUT 等: "Experimental and detailed kinetic model for the oxidation of a Gas to Liquid (GtL) jet fuel", 《COMBUSTION AND FLAME》, vol. 161, no. 3, 31 March 2014 (2014-03-31), pages 835 - 847 * |
| 朱曙光等: "液化石油气火焰传播速度的测量研究", 《江苏冶金》, vol. 36, no. 5, 31 October 2008 (2008-10-31), pages 33 - 35 * |
| 胡贤忠等: "CH4/O2/CO2层流预混火焰传播速度试验研究", 《东北大学学报（自然科学版）》, vol. 34, no. 11, 30 November 2013 (2013-11-30), pages 1593 - 1596 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258116A (en) * | 2014-11-17 | 2016-01-20 | 浙江大学 | Cone-shaped flame burner suitable for researching liquid fuel burning characteristics and method of cone-shaped flame burner |
| CN105258116B (en) * | 2014-11-17 | 2017-06-16 | 浙江大学 | Suitable for the taper flame burner and its method of Study of Liquid fuel combustion characteristics |
| CN107044992A (en) * | 2016-02-05 | 2017-08-15 | 天津出入境检验检疫局工业产品安全技术中心 | A kind of multi-functional CCD visualizations spray igniting composite testing tester |
| CN106568888A (en) * | 2016-10-20 | 2017-04-19 | 浙江大学 | An experiment apparatus having a pressure stabilizing function and used for measuring the laminar flow burning rate of liquid fuel and a method thereof |
| CN106568888B (en) * | 2016-10-20 | 2018-10-19 | 浙江大学 | The experimental provision and its method of measurement liquid fuel laminar burning velocity with voltage stabilizing function |
| CN108982745A (en) * | 2018-08-10 | 2018-12-11 | 西安科技大学 | Coal sample combustion characteristics test device under varying strength jet flame heat radiation |
| CN109520759A (en) * | 2018-10-26 | 2019-03-26 | 南京航空航天大学 | It is a kind of using aviation kerosine as the premix and pre-evaporation Bunsen burner corrosion chamber of fuel |
| CN113531582A (en) * | 2021-06-30 | 2021-10-22 | 东南大学 | Multi-mode metal fuel particle ignition combustion device capable of adjusting atmosphere |
| CN113533620A (en) * | 2021-07-06 | 2021-10-22 | 中国科学院广州能源研究所 | Self-adaptive liquid fuel high-temperature laminar flame propagation speed measuring device and method |
| CN113533620B (en) * | 2021-07-06 | 2023-09-05 | 中国科学院广州能源研究所 | Apparatus and method for measuring high temperature laminar flame propagation velocity of adaptive liquid fuel |
| CN115267042A (en) * | 2022-07-25 | 2022-11-01 | 北京航空航天大学 | A fuel combustion performance testing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104062394B (en) | 2016-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104062394B (en) | Liquid fuel gas phase Bunsen burner laminar flame propagation velocity measurement mechanism and measuring method thereof | |
| Han et al. | Experimental study on evaporation characteristics of ethanol–diesel blend fuel droplet | |
| Dong et al. | Experimental study on the laminar flame speed of hydrogen/natural gas/air mixtures | |
| Wei et al. | Heat transfer characteristics and the optimized heating distance of laminar premixed biogas-hydrogen Bunsen flame impinging on a flat surface | |
| CN108828130B (en) | A droplet evaporation and combustion device and experimental method that are easy to observe and photograph | |
| CN104390215A (en) | Cone-shaped flame burner applicable for researching combustion characteristics of liquid fuel and method thereof | |
| CN103925586A (en) | Controllable steam generation device | |
| Hosseini et al. | Effects of burner configuration on the characteristics of biogas flameless combustion | |
| CN108982683A (en) | A kind of coal mine methane is passed through the analytical equipment and method of coal-burning boiler multifuel combustion oxidation | |
| CN107884510A (en) | A kind of biomass fuel Premixed Laminar Flow spread speed measuring method | |
| CN204101526U (en) | Liquid fuel gas phase Bunsen burner laminar flame propagation velocity measurement mechanism | |
| Solaimuthu et al. | Experimental investigation of evaporation rate and emission studies of Madhuca indica biodiesel and its blend with diesel | |
| CN103592159A (en) | Research method of mercury form transformation during combustion process | |
| CN109520759A (en) | It is a kind of using aviation kerosine as the premix and pre-evaporation Bunsen burner corrosion chamber of fuel | |
| Pourhoseini et al. | An experimental study on the effect of inlet diesel fuel temperature on mass flow choking, flame penetration, temperature, radiative characteristics and NOx pollutant emission of an oil burner | |
| Giovannoni et al. | Experimental investigation of a small-scale combustion chamber fuelled with vegetable oil | |
| CN103604905B (en) | A kind of gel propellant burning Burning rate testing method | |
| Knorsch et al. | A novel heat flux burner system to determine the laminar flame velocity of liquid fuels | |
| CN105628232A (en) | Temperature measuring device | |
| CN202141067U (en) | Pressure and temperature controllable binary liquid fuel sample vaporization sampling device | |
| Talukder et al. | Laminar flame speeds for n-butanol/air mixtures at elevated pressures and temperatures: An experimental and numerical study | |
| CN112881465B (en) | Multi-initial-state fuel transient reaction flow field parameter testing system | |
| CN206161463U (en) | Little algae experimental apparatus of microwave pyrolysis and monitored control system | |
| Manjunath et al. | Composition effects on Thermo-physical properties and evaporation of suspended droplets of biodiesel fuels | |
| Hu et al. | Spark ignition and stable flame of premixed methanol-ammonia gaseous jet at atmospheric surrounding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20170529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |