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CN101514842A - Air heating device for liquid in visual pipeline - Google Patents

Air heating device for liquid in visual pipeline Download PDF

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Publication number
CN101514842A
CN101514842A CNA2009100213492A CN200910021349A CN101514842A CN 101514842 A CN101514842 A CN 101514842A CN A2009100213492 A CNA2009100213492 A CN A2009100213492A CN 200910021349 A CN200910021349 A CN 200910021349A CN 101514842 A CN101514842 A CN 101514842A
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observation
air
pipeline
fluid
box
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CN101514842B (en
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秋穗正
苏光辉
赵大卫
贾斗南
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Xian Jiaotong University
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Xian Jiaotong University
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Abstract

本发明公开了一种可视管道内流体的空气加热装置,包括鼓风机、空气加热箱、高温空气阀门、带有石英玻璃观测窗的观测箱、流体管道及保温层等组成。鼓风机将常温空气送入空气加热箱内,经由空气加热箱内的加热棒进行加热升温。高温空气经由高温空气阀门进入观测箱内,对石英玻璃流道内流体进行加热后,排放到大气中。空气加热箱、观测箱和流体入口及出口管道的外部(观测窗处除外)都包裹保温层进行保温隔热。透过观测箱上的石英玻璃观测窗可以对石英玻璃观测管道内流体在加热条件下的状态进行观测和记录。通过改变鼓风机的送风量或加热棒的加热功率,可以调节观测箱内高温空气加热流体的热流密度。

Figure 200910021349

The invention discloses an air heating device for visualizing fluid in a pipeline, which comprises a blower, an air heating box, a high-temperature air valve, an observation box with a quartz glass observation window, a fluid pipeline, an insulation layer and the like. The blower sends air at normal temperature into the air heating box, and heats up through the heating rods in the air heating box. High-temperature air enters the observation box through the high-temperature air valve, heats the fluid in the quartz glass flow channel, and discharges it into the atmosphere. The outside of the air heating box, the observation box, and the fluid inlet and outlet pipelines (except the observation window) are all wrapped with an insulating layer for thermal insulation. Through the quartz glass observation window on the observation box, the state of the fluid in the quartz glass observation pipe under heating conditions can be observed and recorded. By changing the air supply volume of the blower or the heating power of the heating rod, the heat flux density of the high-temperature air heating fluid in the observation box can be adjusted.

Figure 200910021349

Description

The air heating apparatus of liquid in visual pipeline
Technical field
The present invention relates to the heating of liquid in visual pipeline, particularly the air heating apparatus of liquid in visual pipeline.
Background technology
In chemical field, need external heat could guarantee the carrying out of reaction or the speed of raising reaction in a large amount of chemical reactions.Simultaneously carry out real-time monitored and control for the process to chemical reaction, the carrying out of some chemical reactions need obtain enough external heat sources in the industry under the visual situation of chemical reaction state.In addition, in the scientific experiment, need the chemical experiment of heating to carry out hourly observation in a large number to the phenomenon of chemical reaction; In addition, the experiment of the flowing heat transfer of two-phase such as some vapour-liquids of carrying out under heating state, profit and multiphase flow also need be carried out in visual water back, to carry out the observation and analysis of experimental phenomenas such as flow pattern, steam quality.
Patent CN201039503 has described a kind of electrically heated glass.This electrically heated glass resistance wire of between glassy layer, evenly arranging.After the electrically heated glass energising, can heat the glass both sides.But in order to guarantee the transparent effect of glass, the density of resistance wire and diameter are all wanted strict restriction.Therefore, the heating power of electrically heated glass is relatively low, generally is applied to automobile, the defrosting of train windshield, demist.
Summary of the invention
The objective of the invention is to overcome above-mentioned prior art deficiency, a kind of air heating apparatus of liquid in visual pipeline is provided, this device can carry out the device that high power heats by convection cell under real-time monitored fluid state situation, and the adjustable power of heating.
For achieving the above object, the present invention has adopted following technical scheme: utilize the air heat case that air is heated, as the thermal source that adds hot fluid; The tube wall of the fluid line of observation section is resistant to elevated temperatures quartz glass; Utilize air blast the high temperature air in the air heat case to be sent in the observation case that has observation window, the quartz glass pipeline inner fluid that passes the observation case is heated; Regulate the electrical power of heating rod in air blast or the air heat case, can control the heat flow density that high temperature air adds hot fluid.
The inlet of air heat case of the present invention is connected with an air blast, and its outlet is connected to the air intake of observation case by the high temperature air valve; Fluid line passes from observation case inside, two relative sidewalls of observation case are provided with observation window, the fluid line pipeline section parallel with observation window is quartz glass observation pipeline, between quartz glass observation pipeline and the observation case is the runner of high temperature air, fluid in the quartz glass observation pipeline is heated in this passage by the high temperature air after the heating of air heat case, enter atmosphere via the air outlet slit of observing case.
Intermesh on the air heat case tank wall and be connected with steel plate, box house is divided into a plurality of measure-alike rectangular flow that are connected with each other threads a pipe, each circulation duct with the flow layout electrically heated rod of vertical direction equal intervals of air.
Fluid line comprises fluid intake pipeline, outlet conduit and quartz glass observation pipeline, and quartz glass observation pipe ends connects inlet duct and outlet conduit respectively.
Three layers of transparency and heat-proof quartz glass plate are set, heat-insulation and heat-preservation when guaranteeing real-time monitored quartz glass observation pipeline inner fluid heating situation on the described observation window.
Air heat case, observation case and be positioned at the fluid intake of observation case Outboard Sections and the outer setting of outlet conduit has heat-insulation layer.
The present invention adopts colourless high temperature air that quartz glass observation inner fluid passage is heated.At first guarantee fluid good transparent effect in heating process; Secondly because the silicon-carbon electrically heated rod in the air heat case can be with air heat to very high temperature, the pipeline inner fluid can obtain very high heating power from high temperature air.In quartz glass observation section, high temperature air can be heated to the two-phase fluidized state with the fluid under certain inlet temperature easily.
Description of drawings
Fig. 1 is the structural representation of air heat case;
Fig. 2 is the scheme of installation of electrically heated rod;
Fig. 3 is the structural representation of the air heating apparatus of liquid in visual pipeline;
Below in conjunction with accompanying drawing content of the present invention is described in further detail.
The specific embodiment
With reference to shown in Figure 1, air electrical heating case 2 is a rectangle stainless steel casing.Air electrical heating case 2 inside are welded on the steel plate 4 on the tank wall by intermeshing, box house is divided into a plurality of measure-alike rectangular flow circulation passage that are connected with each other.After normal temperature air is sent in the air electrical heating case 2 by air blast 1, under the restriction of each steel plate 4, turn back successively along curve and to flow through behind each passage, flow out from 2 outlets of air electrical heating case.Increased the circulation distance of air, increased the time that air is heated, helped improving the outlet temperature of air, reduced the casing self-temperature in air heat case 2 inside.Air electrical heating case 2 sidewall two sides have equally spaced circular hole along rectangular channel, in order to the flow layout electrically heated rod 3 of vertical direction equal intervals of air.
With reference to shown in Figure 2, electrically heated rod 3 is the cylinder Elema.Be inserted in behind several layers of aluminium foil 12 of electrically heated rod 3 two ends parcel in the separation sleeve 13 of pottery location.By pottery location separation sleeve 13 it is stuck in air electrical heating case 2 sidewall circular hole places, makes electrically heated rod 3 and 2 isolation of air electrical heating case and play the effect of location.Between air electrical heating case 2 and the location separation sleeve 13, between location separation sleeve 13 and the electrically heated rod 3 small gap is arranged all, guarantee that the deformation that causes under the hot operation condition can not cause crisp hard silicon-carbon electrically heated rod 3 fractures.Two electrodes of power supply are clipped to aluminium foil place, electrically heated rod 3 two ends, regulate the heating power that power source voltage can change electrically heated rod 3.Silicon-carbon electrically heated rod 3 can the operating temperature with 1450 ℃ use 7000 hours in the air of dried and clean continuously, and maximum operating temperature can reach 1500 ℃.In the flow process, constantly stream high temperature silicon-carbon electrically heated rod 3 in the tortuous runner of normal temperature air in air electrical heating case 2.Behind tens of electrically heated rods 3 heat temperature raisings, in the exit of air heat case 2, air themperature can reach 400~500 ℃.
With reference to shown in Figure 3, the inlet of air heat case 2 is connected with an air blast 1, by air blast 1 extraneous air is sent in the air heat case 2.Air air heat case 2 invaginations backflow moving in, by the electrically heated rod heat temperature raising.High temperature air enters air flow channel in the outer observation case of fluid line 7 by the air intake of observation case 7 behind high temperature air valve 5.
Observation case 7 is the stainless steel cuboid, and two opposing sidewalls has rectangle observation window 8.Observation window 8 has been riveted three layers of vitreosil glass plate heat-insulation and heat-preservation when guaranteeing real-time monitored quartz glass observation pipeline 9 inner fluid situations.Fluid line is made up of fluid intake pipeline 10, quartz glass observation pipeline 9 and fluid issuing pipeline 11.The observation fluid can be heated by the high temperature air in the tube wall outside enter observation case 7 via fluid intake pipeline 10 after.At whole section quartz glass observation pipeline 9, the various states of fluid under heating condition can be observed via observation window 8.In addition, can also be outside observation case 7 one side observation windows 8 behind the certain light source of layout, heated state in pipeline is carried out real time record with camera or video camera convection cell at observation case 7 one side observation windows 8 places, for detail analysis.
By the air output of change air blast 1 or the heating power of silicon-carbon electrically heated rod 2, thereby the flow velocity and the temperature of change fluid line outside high temperature air are regulated the heat flow density of high temperature air heating tube inner fluid with this.After the fluid heating in the high temperature air convection cell pipeline, enter atmosphere via the air outlet slit of observing case 7.Air heat case 2, observation case 7 and the fluid intake and the outlet conduit 10,11 that are positioned at observation case 7 outsides all wrap up heat-insulation layer, to reduce the dissipated heat of whole device in environment.

Claims (5)

1.可视管道内流体的空气加热装置,包括一空气加热箱(2),其特征在于,空气加热箱(2)的入口与一台鼓风机(1)连接,其出口通过高温空气阀门(5)连接到观测箱(7)的空气入口;流体管道从观测箱(7)内部穿过,观测箱(7)两个相对的侧壁设置观测窗(8),流体管道与观测窗(8)平行的管段为石英玻璃观测管道(9),石英玻璃观测管道(9)与观测箱(7)之间为高温空气的流道,由空气加热箱(2)加热后的高温空气在此通道内对石英玻璃观测管道(9)内的流体加热,经由观测箱(7)的空气出口排入大气。1. An air heating device that can see the fluid in the pipeline, including an air heating box (2), characterized in that the inlet of the air heating box (2) is connected to a blower (1), and its outlet is passed through a high-temperature air valve (5 ) is connected to the air inlet of the observation box (7); the fluid pipeline passes through the inside of the observation box (7), and the two opposite side walls of the observation box (7) are provided with observation windows (8), and the fluid pipeline and the observation window (8) The parallel pipe section is the quartz glass observation pipe (9), and the flow channel of high-temperature air is between the quartz glass observation pipe (9) and the observation box (7), and the high-temperature air heated by the air heating box (2) is in this channel The fluid in the quartz glass observation pipe (9) is heated and discharged into the atmosphere through the air outlet of the observation box (7). 2.根据权利要求1所述的可视管道内流体的空气加热装置,其特征在于,空气加热箱(2)箱壁上交互连接有钢板(4),把箱体内部分成多个尺寸相同的彼此相连的矩形流通管道,各流通管道在与空气流动垂直方向上等间距的布置电加热棒(3)。2. The air heating device according to claim 1, characterized in that steel plates (4) are alternately connected on the wall of the air heating box (2), and the inner part of the box is divided into a plurality of the same size. Rectangular flow pipes connected to each other, each flow pipe is arranged with electric heating rods (3) at equal intervals in the direction perpendicular to the air flow. 3.根据权利要求1所述的可视管道内流体的空气加热装置,其特征在于,流体管道包括流体入口管道(10)、出口管道(11)以及石英玻璃观测管道(9),石英玻璃观测管道(9)两端分别连接入口管道(10)和出口管道(11)。3. The air heating device for the fluid in the visible pipeline according to claim 1, wherein the fluid pipeline comprises a fluid inlet pipeline (10), an outlet pipeline (11) and a quartz glass observation pipeline (9), and the quartz glass observation pipeline (9) Both ends of the pipeline (9) are respectively connected to the inlet pipeline (10) and the outlet pipeline (11). 4.根据权利要求1所述的可视管道内流体的空气加热装置,其特征在于,所述的观察窗(8)上设置三层透明耐热石英玻璃板,在保证实时观测石英玻璃观测管道(9)内流体加热状况的同时隔热保温。4. The air heating device for the fluid in the visible pipeline according to claim 1, characterized in that, three layers of transparent heat-resistant quartz glass plates are arranged on the described observation window (8), to ensure real-time observation of the quartz glass observation pipeline (9) Heat insulation while the internal fluid is heated. 5.根据权利要求1所述的可视管道内流体的空气加热装置,其特征在于,空气加热箱(2)、观测箱(7)和位于观测箱(7)外侧部分的流体入口及出口管道(10、11)的外部设置有保温层(6)。5. The air heating device for the fluid in the visible pipeline according to claim 1, characterized in that, the air heating box (2), the observation box (7) and the fluid inlet and outlet pipelines located at the outer part of the observation box (7) (10, 11) are provided with an insulating layer (6) on the outside.
CN2009100213492A 2009-03-03 2009-03-03 Air heating device with visible pipeline fluid Expired - Fee Related CN101514842B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101722066B (en) * 2009-12-22 2011-11-09 北京航空航天大学 Box body of multi-parameter integrated measurement verification experimental box for temperature, humidity and pressure
CN103363699A (en) * 2013-07-05 2013-10-23 西安交通大学 Gas clashing type heating device and heating method
CN106567971A (en) * 2016-11-04 2017-04-19 重庆兴宝兴玻璃制品有限公司 High-temperature fluid observation device
CN113092348A (en) * 2021-03-29 2021-07-09 上海厚耀试验设备有限公司 Glass heating system of photovoltaic module ultraviolet illumination humidification freezing comprehensive test box
US11982073B2 (en) 2016-04-26 2024-05-14 Kohler Co. Composite faucet body and internal waterway

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101722066B (en) * 2009-12-22 2011-11-09 北京航空航天大学 Box body of multi-parameter integrated measurement verification experimental box for temperature, humidity and pressure
CN103363699A (en) * 2013-07-05 2013-10-23 西安交通大学 Gas clashing type heating device and heating method
CN103363699B (en) * 2013-07-05 2015-01-21 西安交通大学 Gas clashing type heating device and heating method
US11982073B2 (en) 2016-04-26 2024-05-14 Kohler Co. Composite faucet body and internal waterway
CN106567971A (en) * 2016-11-04 2017-04-19 重庆兴宝兴玻璃制品有限公司 High-temperature fluid observation device
CN113092348A (en) * 2021-03-29 2021-07-09 上海厚耀试验设备有限公司 Glass heating system of photovoltaic module ultraviolet illumination humidification freezing comprehensive test box

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