CN205404462U - Visual measuring device of separated heat pipe - Google Patents
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- CN205404462U CN205404462U CN201620118407.9U CN201620118407U CN205404462U CN 205404462 U CN205404462 U CN 205404462U CN 201620118407 U CN201620118407 U CN 201620118407U CN 205404462 U CN205404462 U CN 205404462U
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Abstract
本实用新型提供了一种分离式热管可视化测量装置，包括设置在分离式热管蒸发段侧的第一测量单元和设置在分离式热管冷凝段侧的第二测量单元，第一测量单元和第二测量单元具有相同的结构，并均包括：夹套，套设在蒸发段或冷凝段上，并与蒸发段或冷凝段之间构成有换热液体换热通道，夹套上设置有进液口和出液口；换热液体供给单元，连接夹套的进液口，以向换热液体换热通道提供换热液体；计量单元，通过输送管路连接夹套的出液口，以对经过蒸发段或冷凝段换热的换热液体进行称重；测温单元，包括分别设置在夹套进液口和出液口以测试换热液体进、出夹套时温度的两个第一测温装置。本实用新型提出测量装置对于热管的运行特性研究提供了重要的技术平台。
The utility model provides a visual measuring device for a separated heat pipe, which comprises a first measuring unit arranged on the side of the evaporation section of the separated heat pipe and a second measuring unit arranged on the side of the condensing section of the separated heat pipe, the first measuring unit and the second The measuring units have the same structure, and both include: a jacket, which is set on the evaporating section or condensing section, and forms a heat exchange liquid heat exchange channel with the evaporating section or condensing section, and the jacket is provided with a liquid inlet and the liquid outlet; the heat exchange liquid supply unit is connected to the liquid inlet of the jacket to provide heat exchange liquid to the heat exchange channel of the heat exchange liquid; the metering unit is connected to the liquid outlet of the jacket through the delivery pipeline to The heat exchange liquid in the evaporating section or the condensing section is weighed; the temperature measurement unit includes two first measurement units respectively installed at the jacket liquid inlet and liquid outlet to test the temperature of the heat exchange liquid when it enters and exits the jacket. temperature device. The utility model proposes that the measuring device provides an important technical platform for the research on the operation characteristics of the heat pipe.
Description
技术领域 technical field
本实用新型属于热管性能测量领域，尤其涉及一种分离式热管可视化测量装置。 The utility model belongs to the field of heat pipe performance measurement, in particular to a separated heat pipe visualization measurement device.
背景技术 Background technique
热管是依靠自身内部的工作液体相变来实现传热的传热元件，通常包括蒸发段和冷凝段，热管的一端（即蒸发段）受热时其内部毛纫芯中的液体蒸发汽化，蒸汽在微小的压差下流向另一端（即冷凝段）放出热量凝结成液体，液体再沿多孔材料靠毛细力的作用流回蒸发段。如此循环不己，热量由热管的一端传至另—端。根据应用需要可以在蒸发段和冷凝段之间布置绝热段。其中分离式热管则表示蒸发段和冷凝段不是整体布置的，而是各自独立安装使用的，参见专利号201310044900.1公开的分离式热管发明专利。对于分离式热管的传热性能、传热效果好坏通常需要利用额外的可视化实验平台进行测试，然而现在的可视化实验平台主要是在热管绝热段的局部平直管道进行，可供观察的范围和特征不全。 A heat pipe is a heat transfer element that relies on the phase change of its internal working liquid to transfer heat. It usually includes an evaporation section and a condensation section. Under the pressure difference, it flows to the other end (that is, the condensation section) and releases heat to condense into a liquid, and then the liquid flows back to the evaporation section along the porous material by the action of capillary force. In this way, the heat is transferred from one end of the heat pipe to the other end. An insulating section can be arranged between the evaporating section and the condensing section according to application requirements. The separated heat pipe means that the evaporating section and the condensing section are not arranged as a whole, but are installed and used independently. For the heat transfer performance and heat transfer effect of the separated heat pipe, it is usually necessary to use an additional visual experiment platform for testing. Not fully characterized.
实用新型内容 Utility model content
针对现有技术中所存在的不足，本实用新型提供了一种分离式热管可视化测量装置，其通过分别对热管的蒸发段和冷凝段进行传热量测试，使得热管性能测试准确性提高，对于热管的运行特性研究提供了重要的技术平台。 Aiming at the deficiencies in the prior art, the utility model provides a separate visual measurement device for heat pipes, which improves the accuracy of heat pipe performance testing by separately testing the heat transfer heat of the evaporation section and the condensation section of the heat pipe. The research on the operating characteristics of the system provides an important technical platform.
为实现上述目的，本实用新型采用了如下的技术方案： In order to achieve the above object, the utility model adopts the following technical solutions:
一种分离式热管可视化测量装置，包括设置在分离式热管蒸发段侧的第一测量单元和设置在分离式热管冷凝段侧的第二测量单元，所述第一测量单元和第二测量单元具有相同的结构，并均包括： A visual measuring device for a separated heat pipe, comprising a first measuring unit arranged on the side of the evaporating section of the separated heat pipe and a second measuring unit arranged on the side of the condensing section of the separated heat pipe, the first measuring unit and the second measuring unit have Same structure, and both include:
采用透明材料制作的夹套，套设在蒸发段或冷凝段上，并与蒸发段或冷凝段之间构成有换热液体换热通道，所述夹套上设置有进液口和出液口，且进液口在下，出液口在上； The jacket made of transparent material is set on the evaporating section or the condensing section, and forms a heat exchange channel for heat exchange liquid between the evaporating section or the condensing section, and the jacket is provided with a liquid inlet and a liquid outlet , and the liquid inlet is at the bottom and the liquid outlet is at the top;
换热液体供给单元，连接夹套的进液口，以向换热液体换热通道提供换热液体； The heat exchange liquid supply unit is connected to the liquid inlet of the jacket to provide the heat exchange liquid to the heat exchange channel of the heat exchange liquid;
计量单元，通过输送管路连接夹套的出液口，以对经过蒸发段或冷凝段换热的换热液体进行称重；以及测温单元，包括分别设置在夹套进液口和出液口以测试换热液体进、出夹套时温度的两个第一测温装置。 The metering unit is connected to the liquid outlet of the jacket through the delivery pipeline to weigh the heat exchange liquid that passes through the evaporation section or the condensation section; and the temperature measurement unit includes the liquid inlet and outlet of the jacket respectively. Two first temperature measuring devices for testing the temperature of the heat exchange liquid when it enters and exits the jacket.
相比于现有技术，本实用新型至少具有如下有益效果： Compared with the prior art, the utility model has at least the following beneficial effects:
本实用新型所述分离式热管可视化测量装置通过分别对蒸发段和冷凝段设置相同的测量单元结构（即夹套、换热液体供给单元、计量单元和测温单元），可分别获得蒸发段和冷凝段的传热量，进而获知整个热管的传热性能，这为热管的运行特性研究提供了重要的技术平台。 The separate heat pipe visualization measurement device described in the utility model can respectively obtain the evaporation section and the condensation section by setting the same measurement unit structure (ie, jacket, heat exchange liquid supply unit, metering unit and temperature measurement unit) for the evaporation section and the condensation section. The heat transfer performance of the entire heat pipe can be obtained through the heat transfer of the condensation section, which provides an important technical platform for the study of the operating characteristics of the heat pipe.
附图说明 Description of drawings
图1为本实用新型所述分离式热管可视化测量装置的结构示意图。 Fig. 1 is a structural schematic diagram of the separated heat pipe visual measurement device described in the present invention.
图2分离式热管试件示意图。 Figure 2 Schematic diagram of the separated heat pipe specimen.
具体实施方式 detailed description
为了使本实用新型实现的技术手段、创作特征、达成目的与作用更加清楚及易于了解，下面结合附图和具体实施方式对本实用新型作进一步阐述： In order to make the technical means, creative features, purpose and effect of the utility model realized clearer and easier to understand, the utility model will be further elaborated below in conjunction with the accompanying drawings and specific implementation methods:
如图1所示，本实用新型提出了一种分离式热管可视化测量装置，包括设置在分离式热管蒸发段侧的第一测量单元10和设置在分离式热管冷凝段侧的第二测量单元20，所述第一测量单元10和第二测量单元20具有相同的结构，并均包括： As shown in Figure 1, the utility model proposes a visual measuring device for a separated heat pipe, which includes a first measuring unit 10 arranged on the side of the evaporation section of the separated heat pipe and a second measuring unit 20 arranged on the side of the condensing section of the separated heat pipe , the first measuring unit 10 and the second measuring unit 20 have the same structure, and both include:
采用透明材料制作的夹套11、21，套设在蒸发段或冷凝段上，并与蒸发段或冷凝段之间构成有换热液体换热通道，所述夹套11、21上设置有进液口11a、21a和出液口11b、21b，且进液口11a、21a在下，出液口11b、21b在上（从图1可以看到，二者分布于夹套两侧）；换热液体供给单元12、22，连接夹套的进液口11a、21a，以向换热液体换热通道提供换热液体；计量单元13、23，通过输送管路连接夹套的出液口11b、21b，以对经过蒸发段或冷凝段换热的换热液体进行称重；以及测温单元14、24，包括分别设置在夹套进液口11a、21a和出液口11b、21b以测试换热液体进、出夹套时温度的两个第一测温装置14a、24a。 The jackets 11 and 21 made of transparent materials are set on the evaporating section or the condensing section, and a heat exchange channel for heat exchange liquid is formed between the evaporating section or the condensing section. The jackets 11 and 21 are provided with advanced The liquid ports 11a, 21a and the liquid outlets 11b, 21b, and the liquid inlets 11a, 21a are on the bottom, and the liquid outlets 11b, 21b are on the top (as can be seen from Figure 1, the two are distributed on both sides of the jacket); heat exchange The liquid supply unit 12, 22 is connected to the liquid inlet 11a, 21a of the jacket to provide heat exchange liquid to the heat exchange channel of the heat exchange liquid; the metering unit 13, 23 is connected to the liquid outlet 11b, 21a of the jacket through the delivery pipeline. 21b, to weigh the heat exchange liquid through the heat exchange of the evaporating section or the condensing section; Two first temperature measuring devices 14a, 24a for the temperature when the hot liquid enters and exits the jacket.
上述方案中，夹套可采用有机玻璃制作而成，本实用新型测量装置通过分别对蒸发段和冷凝段设置相同的测量单元结构（即夹套、换热液体供给单元12、22、计量单元13、23和测温单元14、24），可分别获得蒸发段和冷凝段的传热量，进而获知整个热管的传热性能，这为热管的运行特性研究提供了重要的技术平台。而传热量的计算是采用承重法进行测量，即根据夹套进出水温差和换热液体流量（或者称换热热媒流量）称重进行确定，具体计算公式如下： In the above scheme, the jacket can be made of plexiglass, and the measuring device of the utility model is provided with the same measuring unit structure (i.e. jacket, heat exchange liquid supply unit 12, 22, metering unit 13) for the evaporation section and the condensation section respectively. , 23 and temperature measuring units 14, 24), the heat transfer of the evaporation section and the condensation section can be obtained respectively, and then the heat transfer performance of the whole heat pipe can be obtained, which provides an important technical platform for the research on the operating characteristics of the heat pipe. The calculation of the heat transfer is measured by the load-bearing method, that is, it is determined according to the temperature difference between the inlet and outlet of the jacket and the flow rate of the heat exchange liquid (or the flow rate of the heat exchange heat medium). The specific calculation formula is as follows:
蒸发段，其吸收换热液体的热量使得换热液体被放热，即通过换热液体的放热量就可获得蒸发段的吸热量，Q放=c*m*（t0-t），单位为焦耳J，其中t0为换热液体从蒸发段夹套进液口11a、21a测得的温度值（即初温），t为换热液体经过蒸发段后从夹套出液口11b、21b测得的温度值（即末温）；冷凝段，其向换热液体放出热量使得换热液体被加热，即通过换热液体的吸热量就可获得冷凝段的放热量，Q吸=c*m*（t-t0），单位为焦耳J，其中t0为换热液体从冷凝段夹套进液口11a、21a测得的温度值（即初温），t为换热液体经过冷凝段后从夹套出液口11b、21b测得的温度值（即末温）；c为换热液体的比热容，如果换热液体是水，就是水的比热容；m是通过计量单元13、23进行称重后换算的换热液体质量。 Evaporation section, which absorbs the heat of the heat exchange liquid so that the heat exchange liquid is exothermic, that is, the heat absorption of the evaporation section can be obtained through the heat release of the heat exchange liquid, Q release=c*m*(t0-t), unit is the Joule J, where t0 is the temperature value (i.e. initial temperature) measured from the jacket liquid inlets 11a and 21a of the evaporating section of the heat exchange liquid, and t is the temperature value measured from the jacket liquid outlets 11b and 21b of the heat exchange liquid after passing through the evaporating section The measured temperature value (ie, the final temperature); the condensation section, which releases heat to the heat exchange liquid to heat the heat exchange liquid, that is, the heat release of the condensation section can be obtained through the heat absorption of the heat exchange liquid, Q absorption = c *m*(t-t0), the unit is Joule J, where t0 is the temperature value of the heat exchange liquid measured from the jacket liquid inlet 11a and 21a of the condensation section (that is, the initial temperature), and t is the heat exchange liquid passing through the condensation section Finally, the temperature value measured from the jacket liquid outlet 11b, 21b (i.e. the final temperature); c is the specific heat capacity of the heat exchange liquid, if the heat exchange liquid is water, it is the specific heat capacity of water; m is measured by the metering unit 13, 23 The mass of the heat exchange liquid converted after weighing.
作为上述方案的一个优选方案，所述测温单元14、24还包括设置在蒸发段或冷凝段各管束上的第二测温装置14b、24b。通过在蒸发段和冷凝段分别设置相应的温度测点，结合上述获得的传热量可以对热管的传热性能进行评价，获知热管的传热效果。所述测量单元中第一测温装置14a、24a和第二测温装置14b、24b优选采用测温热电偶。第一测温装置14a、24a和第二测温装置14b、24b均连接数据采集器，并通过数据采集器通讯连接至PC机，如图1所示。 As a preferred solution of the above solution, the temperature measuring units 14, 24 further include second temperature measuring devices 14b, 24b arranged on each tube bundle of the evaporating section or the condensing section. The heat transfer performance of the heat pipe can be evaluated by setting corresponding temperature measuring points in the evaporating section and the condensing section respectively, and the heat transfer effect of the heat pipe can be obtained in combination with the heat transfer amount obtained above. The first temperature measuring devices 14a, 24a and the second temperature measuring devices 14b, 24b in the measuring unit preferably adopt temperature measuring thermocouples. Both the first temperature measuring devices 14a, 24a and the second temperature measuring devices 14b, 24b are connected to the data collector, and are connected to the PC through the data collector, as shown in FIG. 1 .
参见图1，所述换热液体供给单元12、22包括：恒温水浴12a、22a，储放所述换热液体；水箱12b、22b，通过供水泵连通恒温水浴12a、22a，并连通夹套进液口11a、21a以向夹套提供平稳的换热液体。其中恒温水浴12a、22a可以控制换热液体（即水）的温度，而水箱12b、22b则从恒温水浴12a、22a通入水后，向夹套提供稳定的换热液体。至于如何提供稳定的换热液体，方案如下：所述水箱12b、22b内部设置有隔板A、B，所述隔板A、B将水箱12b、22b内部空间分隔成供水腔A1、B1和回水腔A2、B2，其中所述供水腔A1、B1通过所述供水泵连通恒温水浴12a、22a，并通过隔板始终保持在恒定液位，所述回水腔A2、B2连通恒温水浴12a、22a。即在水箱12b、22b中保持着恒定的循环水压力。 Referring to Fig. 1, the heat exchange liquid supply units 12, 22 include: constant temperature water baths 12a, 22a for storing the heat exchange liquid; The liquid ports 11a, 21a provide a steady heat exchange liquid to the jacket. Among them, the constant temperature water baths 12a and 22a can control the temperature of the heat exchange liquid (namely water), while the water tanks 12b and 22b provide stable heat exchange liquid to the jacket after passing water from the constant temperature water baths 12a and 22a. As for how to provide a stable heat exchange liquid, the scheme is as follows: the inside of the water tanks 12b, 22b is provided with partitions A, B, and the partitions A, B divide the internal space of the water tanks 12b, 22b into water supply chambers A1, B1 and return chambers. Water chambers A2, B2, wherein the water supply chambers A1, B1 are connected to the constant temperature water baths 12a, 22a through the water supply pumps, and are always kept at a constant liquid level through the partition, and the return water chambers A2, B2 are connected to the constant temperature water baths 12a, 22a, 22a. That is, a constant circulating water pressure is maintained in the water tanks 12b, 22b.
其中，所述夹套出液口11b、21b到计量单元13、23的输送管路上还连接有一个储液桶15、25。通过储液桶15、25存储从夹套储液口流出的一部分换热液体，而另一部分换热液体则通过管路送入到计量单元13、23上进行称重测量。计量单元13、23优选采用电子称，在电子称上放置有称液桶。这里，储液桶可有可无，当不设置储液桶的时候，可将连通储液桶的管路直接连入恒温水浴中，以进行回流即可。 Wherein, a liquid storage barrel 15 , 25 is also connected to the delivery pipeline from the jacket liquid outlet 11 b , 21 b to the metering unit 13 , 23 . A part of the heat exchange liquid flowing out from the jacket liquid storage port is stored through the liquid storage barrels 15 and 25, while the other part of the heat exchange liquid is sent to the metering units 13 and 23 through the pipeline for weighing measurement. The metering units 13, 23 are preferably electronic scales, on which a weighing liquid barrel is placed. Here, the liquid storage tank is optional. When the liquid storage tank is not provided, the pipeline connected to the liquid storage tank can be directly connected to the constant temperature water bath for reflux.
本实用新型中，所述蒸发段和冷凝段之间还设置有绝热段，所述绝热段的其中一个管段上设置有三通管，以分别连接热管工质充灌装置、真空泵和真空表。由于热管本身是一个密封的真空系统，因此在这里设置一个三通管30以分别连通真空泵和真空表，以及更换热管内腔工质的充灌装置，以便于不同工质的使用，不同充液率的操作。具体的原理是封闭的管内先抽真空，使内压达到要求后，在此状态下充40%~60%的热管工质（蒸馏水、乙醇等）。分离式热管试件的蒸发段和冷凝段由玻璃等其他透明材料制作，便于观察工质流动传质现象特征,参见2,其中图2所示的图中，C1表示C处冷凝段具体结构展示图，D1表示D处蒸发段具体结构展示图。 In the utility model, a heat insulation section is provided between the evaporation section and the condensation section, and a tee pipe is provided on one of the pipe sections of the heat insulation section to respectively connect the heat pipe working fluid filling device, the vacuum pump and the vacuum gauge. Since the heat pipe itself is a sealed vacuum system, a three-way pipe 30 is provided here to communicate with the vacuum pump and the vacuum gauge, as well as the filling device for replacing the working fluid in the inner cavity of the heat pipe, so as to facilitate the use of different working fluids and different filling conditions. liquid rate operation. The specific principle is to evacuate the closed tube first to make the internal pressure meet the requirements, and then fill 40%~60% of the heat pipe working medium (distilled water, ethanol, etc.) in this state. The evaporation section and condensation section of the separated heat pipe test piece are made of other transparent materials such as glass, which is convenient for observing the characteristics of the flow and mass transfer of the working fluid. See 2. In the figure shown in Figure 2, C1 represents the specific structure of the condensation section at C. In the figure, D1 shows the specific structure of the evaporation section at D.
所述蒸发段和冷凝段由玻璃等透明材料制作而成，便于观察工质流动传质现象特征。 The evaporating section and the condensing section are made of transparent materials such as glass, which is convenient for observing the characteristics of the flow and mass transfer of the working fluid.
总的说来，本实用新型所述分离式热管可视化测量装置可完成热管启动到运行过程中蒸发冷凝段传热能力和传热效果的全面测试：传热量的准确记录（根据夹套进出水温差和换热热媒流量称重确定），以及传热效果的全面评价（根据传热量及蒸发段冷凝段温差确定综合热阻）。同时适用于分离式热管的可视化蒸发及冷凝段换热夹套；蒸发段、冷凝段换热工况可调节，具有稳定的换热热媒流量及热媒温度可控；热管工质充灌阀件组便于不同工质的使用、不同充液率的操作。进一步的是，可借助告诉摄影装置、红外热像仪对于热管内部工质流动状态和传热特征进行深入分析。 In general, the separated heat pipe visual measuring device described in the present invention can complete the comprehensive test of the heat transfer capacity and heat transfer effect of the evaporation and condensation section during the start-up and operation of the heat pipe: the accurate record of heat transfer (according to the temperature difference between the inlet and outlet water of the jacket) and heat exchange heat medium flow rate weighing), and a comprehensive evaluation of heat transfer effect (according to the heat transfer amount and the temperature difference in the condensing section of the evaporation section to determine the comprehensive thermal resistance). At the same time, it is suitable for the visible evaporation and condensation section heat exchange jacket of the separated heat pipe; the heat exchange conditions of the evaporation section and the condensation section can be adjusted, and it has a stable heat exchange heat medium flow rate and heat medium temperature controllable; heat pipe working fluid filling valve The set of components is convenient for the use of different working fluids and the operation of different filling rates. Furthermore, in-depth analysis of the working fluid flow state and heat transfer characteristics inside the heat pipe can be carried out with the help of high-resolution photography devices and infrared thermal imaging cameras.
最后说明的是，以上实施例仅用以说明本实用新型的技术方案而非限制，尽管参照较佳实施例对本实用新型进行了详细说明，本领域的普通技术人员应当理解，可以对本实用新型的技术方案进行修改或者等同替换，而不脱离本实用新型技术方案的宗旨和范围，其均应涵盖在本实用新型的权利要求范围当中。 Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342253A (en) * | 2018-11-29 | 2019-02-15 | 安徽工业大学 | A loop heat pipe capillary core performance testing device and testing method thereof |
| CN109490366A (en) * | 2018-10-31 | 2019-03-19 | 北京建筑大学 | A kind of visualization pulsating heat pipe experimental system and experimental method |
| CN110849761A (en) * | 2019-10-28 | 2020-02-28 | 南京航空航天大学 | Device and method for testing heat transfer performance of high-temperature heat pipe |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109490366A (en) * | 2018-10-31 | 2019-03-19 | 北京建筑大学 | A kind of visualization pulsating heat pipe experimental system and experimental method |
| CN109490366B (en) * | 2018-10-31 | 2021-05-11 | 北京建筑大学 | Visual pulsating heat pipe experiment system and method |
| CN109342253A (en) * | 2018-11-29 | 2019-02-15 | 安徽工业大学 | A loop heat pipe capillary core performance testing device and testing method thereof |
| CN109342253B (en) * | 2018-11-29 | 2024-02-02 | 安徽工业大学 | Loop heat pipe capillary core performance testing device and testing method thereof |
| CN110849761A (en) * | 2019-10-28 | 2020-02-28 | 南京航空航天大学 | Device and method for testing heat transfer performance of high-temperature heat pipe |
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