CN101907414A - Combined oscillating flow heat pipe with evaporative heat exchange joint - Google Patents

Combined oscillating flow heat pipe with evaporative heat exchange joint Download PDF

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CN101907414A
CN101907414A CN2010102388564A CN201010238856A CN101907414A CN 101907414 A CN101907414 A CN 101907414A CN 2010102388564 A CN2010102388564 A CN 2010102388564A CN 201010238856 A CN201010238856 A CN 201010238856A CN 101907414 A CN101907414 A CN 101907414A
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heat pipe
oscillating flow
flow heat
evaporation
connecting section
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CN101907414B (en
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冼海珍
杨勇平
刘登瀛
杜小泽
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North China Electric Power University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores

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  • Thermal Sciences (AREA)
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  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

本发明属于传热领域，特别涉及一种带蒸发换热联接段的组合式振荡流热管。初级振荡流热管的冷凝端和次级振荡流热管的蒸发端均置于蒸发换热联接段内分别水平固接在蒸发换热联接段的下部和上部，蒸发换热联接段内抽真空充填工作液后密封，工作液浸没初级振荡流热管的冷凝端，构成振荡流热管组合单元，1～3级振荡流热管组合单元串联组成带蒸发换热联接段带蒸发换热联接段的组合式振荡流热管。振荡流热管组合单元的初、次级振荡流热管也可由2～5支振荡流热管并联构成。通过振荡流热管的串联组合达到延长热传输距离的目的，并联组合达到扩展散热面积的目的，显著改善振荡流热管传热能力。本发明适用于高效紧凑换热器、工业余热回收、太阳能热利用等领域。

Figure 201010238856

The invention belongs to the field of heat transfer, in particular to a combined oscillating flow heat pipe with an evaporation heat exchange connection section. The condensing end of the primary oscillating flow heat pipe and the evaporating end of the secondary oscillating flow heat pipe are placed in the evaporative heat exchange joint section and fixed horizontally on the lower and upper parts of the evaporative heat exchange joint section, and the evaporative heat exchange joint section is vacuumed and filled. The liquid is sealed after the liquid, and the working fluid is immersed in the condensation end of the primary oscillating flow heat pipe to form an oscillating flow heat pipe combination unit. The 1st to 3rd oscillating flow heat pipe combination units are connected in series to form a combined oscillating flow with evaporative heat exchange connection section and evaporation heat exchange connection section. Heat pipe. The primary and secondary oscillating flow heat pipes of the oscillating flow heat pipe combination unit can also be composed of 2 to 5 oscillating flow heat pipes connected in parallel. The series combination of the oscillating flow heat pipes achieves the purpose of extending the heat transfer distance, and the parallel combination achieves the purpose of expanding the heat dissipation area, and significantly improves the heat transfer capacity of the oscillating flow heat pipes. The invention is applicable to the fields of high-efficiency and compact heat exchangers, industrial waste heat recovery, solar heat utilization and the like.

Figure 201010238856

Description

带蒸发换热联接段的组合式振荡流热管 Combined oscillating flow heat pipe with evaporative heat exchange joint

技术领域technical field

本发明属于传热领域，特别涉及一种带蒸发换热联接段的组合式振荡流热管。The invention belongs to the field of heat transfer, in particular to a combined oscillating flow heat pipe with an evaporation heat exchange connection section.

背景技术Background technique

振荡流热管是国际上近十年发展起来的一种高效热管(H.Akachi(赤地)：Looped Capillary Tube Heat Pipe，Proceedings of 71st General Meeting Conference of JSME，Vol.3，No.940-10，1994)。振荡流热管(又称脉动热管)是由长的毛细管弯曲成的蛇形管路，由若干细直管道和若干弯头组成，划分为加热段、冷凝段和隔热段三部分。按其循环系统的不同，又可分为首尾连成闭合回路的回路型(Looped)(如图1所示)和首尾不相连的非回路型(Unlooped)(如图2所示)两种。其工作原理如下所述：当管径足够小时，在真空下封装在管内的工作液体将在管内形成液、汽相间的柱塞。在加热段，汽泡或汽柱与管壁之间的液膜因受热而不断蒸发，导致汽泡膨胀，并推动汽液柱塞流向冷端冷凝收缩，从而在冷、热端之间形成较大的压差。由于汽液柱塞交错分布，因而在管内产生强烈的往复振荡运动，从而实现高效热传递。The oscillating flow heat pipe is a high-efficiency heat pipe developed in the past ten years in the world (H.Akachi: Looped Capillary Tube Heat Pipe, Proceedings of 71st General Meeting Conference of JSME, Vol.3, No.940-10, 1994 ). The oscillating flow heat pipe (also known as the pulsating heat pipe) is a serpentine pipeline formed by bending a long capillary tube. It consists of several thin straight pipes and several elbows, and is divided into three parts: heating section, condensation section and heat insulation section. According to the different circulatory systems, it can be divided into two types: Looped (as shown in Figure 1) connected end to end into a closed loop and Unlooped (Unlooped) not connected end to end (as shown in Figure 2). Its working principle is as follows: when the diameter of the tube is small enough, the working liquid encapsulated in the tube under vacuum will form a plunger between the liquid and vapor phases in the tube. In the heating section, the liquid film between the bubble or steam column and the tube wall is continuously evaporated due to heating, causing the bubble to expand and push the vapor-liquid plunger to flow to the cold end to condense and shrink, thus forming a gap between the cold and hot ends. large differential pressure. Due to the staggered distribution of the vapor-liquid plungers, a strong reciprocating oscillatory motion is generated in the tube to achieve efficient heat transfer.

振荡流热管是一种高效传热元件，但其热量的传输距离通常不大于1～2米；同时，在许多将振荡流热管用于发热体散热的场合，往往要求增加热管的散热面积，而仅使用单根热管将无法满足使用要求。这就提出了如何延长热管的热传输距离和扩展热管散热面积的关键应用问题。The oscillating flow heat pipe is a high-efficiency heat transfer element, but its heat transmission distance is usually not greater than 1 to 2 meters; at the same time, in many occasions where the oscillating flow heat pipe is used for heat dissipation of the heating body, it is often required to increase the heat dissipation area of the heat pipe, and Only using a single heat pipe will not be able to meet the requirements of use. This raises the key application issues of how to extend the heat transfer distance of the heat pipe and expand the heat dissipation area of the heat pipe.

发明内容Contents of the invention

本发明目的是为了克服单根振荡流热管热传输距离不大，散热面积小的不足，本发明提供一种带蒸发换热联接段的组合式振荡流热管，其特征在于，带蒸发换热联接段的组合式振荡流热管由N级振荡流热管组合单元串联组成，N为1～3；The purpose of the present invention is to overcome the shortcoming of a single oscillating flow heat pipe with a small heat transfer distance and a small heat dissipation area. The present invention provides a combined oscillating flow heat pipe with an evaporative heat exchange connection section. The section combined oscillating flow heat pipe is composed of N-level oscillating flow heat pipe combination units connected in series, where N is 1 to 3;

所述振荡流热管组合单元由初级振荡流热管101、次级振荡流热管102和蒸发换热联接段103构成，蒸发换热联接段103为竖置的密闭容器，蒸发换热联接段103容器抽真空，再充填工作液104并密封，初级振荡流热管101的一端置于蒸发换热联接段103内，并初级振荡流热管101水平固接在蒸发换热联接段103的下部，次级振荡流热管102的一端置于蒸发换热联接段103内，并次级振荡流热管102水平固接在蒸发换热联接段103的上部，初级振荡流热管101插入蒸发换热联接段103内的一端为冷凝端，(即散热端)，初级振荡流热管101在蒸发换热联接段103外的一端为蒸发端，(即吸热端)，次级振荡流热管102插入蒸发换热联接段103内的一端为蒸发端，在蒸发换热联接段103外的一端为冷凝端，工作液104置于蒸发换热联接段103内，初级振荡流热管101的冷凝端浸没在工作液104内，次级振荡流热管102的蒸发端在工作液104的液面以上；The oscillating flow heat pipe combination unit is composed of a primary oscillating flow heat pipe 101, a secondary oscillating flow heat pipe 102, and an evaporation heat exchange connection section 103. The evaporation heat exchange connection section 103 is a vertical airtight container. Vacuum, refill the working fluid 104 and seal it. One end of the primary oscillating flow heat pipe 101 is placed in the evaporative heat exchange connection section 103, and the primary oscillating flow heat pipe 101 is horizontally fixed on the lower part of the evaporative heat exchange connection section 103. One end of the heat pipe 102 is placed in the evaporative heat exchange connecting section 103, and the secondary oscillating flow heat pipe 102 is fixed horizontally on the upper part of the evaporating heat exchange connecting section 103, and the end of the primary oscillating flow heat pipe 101 inserted into the evaporating heat exchange connecting section 103 is Condensation end, (i.e. heat dissipation end), the end of the primary oscillating flow heat pipe 101 outside the evaporative heat exchange connection section 103 is the evaporation end, (i.e. heat absorption end), and the secondary oscillating flow heat pipe 102 is inserted into the evaporation heat exchange connection section 103 One end is the evaporation end, and the end outside the evaporation heat exchange connection section 103 is the condensation end. The working fluid 104 is placed in the evaporation heat exchange connection section 103, and the condensation end of the primary oscillating flow heat pipe 101 is immersed in the working fluid 104, and the secondary oscillation The evaporation end of the flow heat pipe 102 is above the liquid level of the working fluid 104;

带蒸发换热联接段的组合式振荡流热管的N级振荡流热管组合单元中，第1级振荡流热管组合单元1的次级振荡流热管即为第2级振荡流热管组合单元2的初级振荡流热管，第2级振荡流热管组合单元2的次级振荡流热管即为第3级振荡流热管组合单元3的初级振荡流热管，第N-1级振荡流热管组合单元N-1的次级振荡流热管即为第N级振荡流热管组合单元N的初级振荡流热管，第1级振荡流热管组合单元1的初级振荡流热管的蒸发端为带蒸发换热联接段的组合式振荡流热管的蒸发端，第N级振荡流热管组合单元N的次级振荡流热管的冷凝端为带蒸发换热联接段的组合式振荡流热管的冷凝端。In the N-stage oscillating flow heat pipe combination unit of the combined oscillating flow heat pipe with an evaporative heat exchange connection section, the secondary oscillating flow heat pipe of the first-stage oscillating flow heat pipe combination unit 1 is the primary of the second-level oscillating flow heat pipe combination unit 2 The oscillating flow heat pipe, the secondary oscillating flow heat pipe of the 2nd stage oscillating flow heat pipe combination unit 2 is the primary oscillating flow heat pipe of the 3rd stage oscillating flow heat pipe combination unit 3, the N-1 stage oscillating flow heat pipe combination unit N-1 The secondary oscillating flow heat pipe is the primary oscillating flow heat pipe of the Nth-stage oscillating flow heat pipe combination unit N, and the evaporation end of the primary oscillating flow heat pipe of the first-level oscillating flow heat pipe combination unit 1 is a combined oscillation with an evaporation heat exchange joint The evaporating end of the flow heat pipe, the condensation end of the secondary oscillating flow heat pipe of the Nth-stage oscillating flow heat pipe combination unit N is the condensation end of the combined oscillating flow heat pipe with an evaporative heat exchange connection section.

所述初级振荡流热管101和次级振荡流热管102均为单支回路型振荡流热管或单支非回路型振荡流热管。Both the primary oscillating flow heat pipe 101 and the secondary oscillating flow heat pipe 102 are single loop oscillating flow heat pipes or single non-loop oscillating flow heat pipes.

所述工作液104为蒸馏水、乙醇、丙酮或制冷剂R141b。The working fluid 104 is distilled water, ethanol, acetone or refrigerant R141b.

所述蒸发换热联接段103容器充填工作液前抽真空，真空度为10-1～10-2Pa。The container of the evaporating heat exchange connecting section 103 is vacuumized before being filled with the working fluid, and the vacuum degree is 10 -1 ~ 10 -2 Pa.

所述振荡流热管组合单元中的初级振荡流热管为并联式初级振荡流热管201，次级振荡流热管为并联式次级振荡流热管202，所述并联式初级振荡流热管201和并联式次级振荡流热管202均由2～5支回路型振荡流热管或非回路型振荡流热管平行排列组成，回路型振荡流热管或非回路型振荡流热管的管路平面为水平布置或竖直布置。通过振荡流热管的并联组合达到扩展散热面积的目的，提高了热管的传热能力。The primary oscillating flow heat pipe in the oscillating flow heat pipe combination unit is a parallel primary oscillating flow heat pipe 201, the secondary oscillating flow heat pipe is a parallel secondary oscillating flow heat pipe 202, and the parallel primary oscillating flow heat pipe 201 and parallel secondary The first-stage oscillating flow heat pipes 202 are composed of 2 to 5 loop-type oscillating-flow heat pipes or non-loop-type oscillating-flow heat pipes arranged in parallel. . The purpose of expanding the heat dissipation area is achieved through the parallel combination of the oscillating flow heat pipes, and the heat transfer capacity of the heat pipes is improved.

本发明采用蒸发换热联接段来实现振荡流热管串联与并联组合的新方法，该方法利用蒸发相变传递热量与直接接触的管间热传递，通过对振荡流热管进行串、并联组合，延长了热传输距离，扩展了散热面积，从而大大提高了热管的传热能力。The invention adopts the evaporative heat exchange connection section to realize the new method of series and parallel combination of oscillating flow heat pipes. The heat transfer distance is extended, and the heat dissipation area is expanded, thereby greatly improving the heat transfer capacity of the heat pipe.

在进行串联组合时，初级振荡流热管和次级振荡流热管通过串联组合构成振荡流热管组合单元。多级振荡流热管组合单元的串联组合组成带蒸发换热联接段的组合式振荡流热管，延长了热传输距离。多级振荡流热管组合单元串联一般不宜超过三级。When combining in series, the primary oscillating flow heat pipe and the secondary oscillating flow heat pipe form an oscillating flow heat pipe combination unit through series combination. The series combination of multi-stage oscillating flow heat pipe combination units forms a combined oscillating flow heat pipe with an evaporative heat exchange connection section, which prolongs the heat transfer distance. Generally, the series connection of multi-stage oscillating flow heat pipe combined units should not exceed three stages.

在进行并联组合时，用一组振荡流热管作为振荡流热管组合单元的初级振荡流热管，用另一组振荡流热管作为振荡流热管组合单元的次级振荡流热管，两组振荡流热管与蒸发换热联接段构成并联式振荡流热管组合单元，扩展了散热面积。多级并联式振荡流热管组合单元也可通过串联组合组成散热面积更大的带蒸发换热联接段的组合式振荡流热管。每组振荡流热管的振荡流热管并联一般不宜超过五支。When performing parallel combination, a group of oscillating flow heat pipes is used as the primary oscillating flow heat pipe of the oscillating flow heat pipe combination unit, and another group of oscillating flow heat pipes is used as the secondary oscillating flow heat pipe of the oscillating flow heat pipe combination unit, and the two groups of oscillating flow heat pipes are connected with the oscillating flow heat pipe combination unit. The evaporative heat exchange connection section constitutes a parallel oscillating flow heat pipe combination unit, which expands the heat dissipation area. The multi-stage parallel oscillating flow heat pipe combination unit can also be combined in series to form a combined oscillating flow heat pipe with a larger heat dissipation area and an evaporative heat exchange connection section. Generally, the parallel connection of the oscillating flow heat pipes of each group of oscillating flow heat pipes should not exceed five.

本发明使用时，将第1级振荡流热管组合单元的蒸发端(即吸热端)与加热热源连接，将末级振荡流热管组合单元的冷凝端(即散热端)与需要加热的物体连接(对于一些需要散热的设备或元件，可以把第1级振荡流热管组合单元的蒸发端直接贴附在需要散热的设备或者元件上，末级振荡流热管组合单元的冷凝端置于冷却流体中)，中间热输送段的振荡流热管组合单元的振荡流热管和蒸发换热联接段用绝热材料包裹，以减少输送过程热损失。本发明可根据实际需要，采用串联、并联或串并联组合形式，用于大中型换热器或长距离热输送场合，可用于高效紧凑换热器、工业余热回收、太阳能热利用等领域。When the present invention is in use, connect the evaporation end (i.e., the endothermic end) of the first-stage oscillating flow heat pipe assembly unit with the heating heat source, and connect the condensation end (i.e., the heat dissipation end) of the final-stage oscillating flow heat pipe assembly unit with the object to be heated (For some equipment or components that need heat dissipation, the evaporation end of the first-stage oscillating flow heat pipe combination unit can be directly attached to the equipment or components that need heat dissipation, and the condensation end of the last-stage oscillating flow heat pipe combination unit is placed in the cooling fluid ), the oscillating flow heat pipe combination unit of the intermediate heat delivery section and the evaporative heat exchange connection section are wrapped with insulating materials to reduce heat loss during the transportation process. The invention can be used in series, parallel or series-parallel combination according to actual needs, and can be used in large and medium-sized heat exchangers or long-distance heat transport occasions, and can be used in fields such as high-efficiency and compact heat exchangers, industrial waste heat recovery, and solar heat utilization.

本发明的有益效果是，通过振荡流热管的串联组合达到延长热传输距离的目的，通过振荡流热管的并联组合达到扩展散热面积的目的，因此可以显著改善振荡流热管传热能力。可根据具体需要，用若干支振荡流热管的串并联组合来满足相应的传热要求。The beneficial effect of the present invention is that the purpose of extending the heat transfer distance is achieved through the series combination of the oscillating flow heat pipes, and the purpose of expanding the heat dissipation area is achieved through the parallel combination of the oscillating flow heat pipes, so the heat transfer capacity of the oscillating flow heat pipes can be significantly improved. According to specific needs, the series-parallel combination of several oscillating flow heat pipes can be used to meet the corresponding heat transfer requirements.

附图说明Description of drawings

下面结合附图和实施例对本发明进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

图1为回路型振荡流热管示意图；Figure 1 is a schematic diagram of a loop type oscillating flow heat pipe;

图2为非回路型振荡流热管示意图；Fig. 2 is a schematic diagram of a non-loop type oscillating flow heat pipe;

图3为振荡流热管组合单元示意图；3 is a schematic diagram of an oscillating flow heat pipe combination unit;

图4为带蒸发换热联接段的组合式振荡流热管；Fig. 4 is a combined oscillating flow heat pipe with an evaporative heat exchange connection section;

图5为并联式振荡流热管组合单元示意图。Fig. 5 is a schematic diagram of a parallel oscillating flow heat pipe combination unit.

图中，1--第1级振荡流热管组合单元，2--第2级振荡流热管组合单元，N--第N级振荡流热管组合单元，101--初级振荡流热管，102--次级振荡流热管，103--蒸发换热联接段，104--工作液，201--并联式初级振荡流热管，202--并联式次级振荡流热管。In the figure, 1—the first stage oscillating flow heat pipe combination unit, 2—the second stage oscillating flow heat pipe combination unit, N—the Nth stage oscillating flow heat pipe combination unit, 101—the primary oscillating flow heat pipe, 102— Secondary oscillating flow heat pipe, 103-evaporation heat exchange connection section, 104-working fluid, 201-parallel primary oscillating flow heat pipe, 202-parallel secondary oscillating flow heat pipe.

具体实施方式Detailed ways

图3、图4、图5为本发明的实施例的示意图。Fig. 3, Fig. 4 and Fig. 5 are schematic diagrams of embodiments of the present invention.

图3为振荡流热管组合单元示意图。如图3所示，振荡流热管组合单元初级振荡流热管101、次级振荡流热管102和蒸发换热联接段103构成，蒸发换热联接段103为竖置的密闭容器，容器抽真空后充填工作液104后密封，初级振荡流热管101的一端置于蒸发换热联接段103内，并初级振荡流热管101水平固接在蒸发换热联接段103的下部，次级振荡流热管102的一端置于蒸发换热联接段103内，并次级振荡流热管102水平固接在蒸发换热联接段103的上部，初级振荡流热管101插入蒸发换热联接段103内的一端为冷凝端，即散热端，初级振荡流热管101在蒸发换热联接段103外的一端为蒸发端，即吸热端，次级振荡流热管102插入蒸发换热联接段103内的一端为蒸发端，在蒸发换热联接段103外的一端为冷凝端。Fig. 3 is a schematic diagram of an oscillating flow heat pipe combination unit. As shown in Figure 3, the oscillating flow heat pipe assembly unit is composed of a primary oscillating flow heat pipe 101, a secondary oscillating flow heat pipe 102, and an evaporation heat exchange connection section 103. The evaporation heat exchange connection section 103 is a vertical airtight container, and the container is vacuumized and filled. The working fluid 104 is sealed behind, one end of the primary oscillating flow heat pipe 101 is placed in the evaporative heat exchange connection section 103, and the primary oscillating flow heat pipe 101 is horizontally fixed on the lower part of the evaporation heat exchange connection section 103, and one end of the secondary oscillating flow heat pipe 102 Placed in the evaporative heat exchange connection section 103, and the secondary oscillating flow heat pipe 102 is horizontally fixed on the upper part of the evaporative heat exchange connection section 103, and the end of the primary oscillating flow heat pipe 101 inserted into the evaporative heat exchange connection section 103 is the condensation end, namely The heat dissipation end, the end of the primary oscillating flow heat pipe 101 outside the evaporative heat exchange connecting section 103 is the evaporating end, that is, the heat absorbing end, and the end of the secondary oscillating flow heat pipe 102 inserted into the evaporating heat exchange connecting section 103 is the evaporating end, and One end outside the thermal coupling section 103 is the condensation end.

蒸发换热联接段103为竖直放置的密闭立方体容器，容器内充有蒸馏水或乙醇工作液104，充液率以能使工作液全部浸没下部的初级振荡流热管101冷凝端为准，蒸发换热联接段103内部空间用真空泵抽真空至真空度为10-1～10-2Pa。初级振荡流热管101和次级振荡流热管102均为由内径3mm，外径5mm的铜管制成的回路型振荡流热管，管内封装的工作液体为蒸馏水，封装量约50％。The evaporative heat exchange connecting section 103 is a closed cubic container placed vertically. The container is filled with distilled water or ethanol working fluid 104. The liquid filling rate is based on the condensing end of the primary oscillating flow heat pipe 101 that can completely immerse the working fluid in the lower part. The inner space of the thermal coupling section 103 is evacuated by a vacuum pump to a vacuum degree of 10 -1 ~ 10 -2 Pa. Both the primary oscillating flow heat pipe 101 and the secondary oscillating flow heat pipe 102 are circuit-type oscillating flow heat pipes made of copper tubes with an inner diameter of 3 mm and an outer diameter of 5 mm. The working liquid encapsulated in the tubes is distilled water, and the encapsulation volume is about 50%.

图4为带蒸发换热联接段的组合式振荡流热管。如图4所示，带蒸发换热联接段的组合式振荡流热管由多级如图3所示的振荡流热管组合单元串联组成，本实施例为三级振荡流热管组合单元串联。第1级振荡流热管组合单元1的次级振荡流热管即为第2级振荡流热管组合单元2的初级振荡流热管，第2级振荡流热管组合单元2的次级振荡流热管即为第3级振荡流热管组合单元3的初级振荡流热管，第N-1级振荡流热管组合单元N-1的次级振荡流热管即为第N级振荡流热管组合单元N的初级振荡流热管，本实施例N为3。第1级振荡流热管组合单元的初级振荡流热管的蒸发端为带蒸发换热联接段的组合式振荡流热管的蒸发端，第3级振荡流热管组合单元的次级振荡流热管的冷凝端为带蒸发换热联接段的组合式振荡流热管的冷凝端。三级振荡流热管组合单元蒸发换热联接段的工作液均为蒸馏水。与图3所示的振荡流热管组合单元同样，各级振荡流热管组合单元初级振荡流热管和次级振荡流热管均为由内径3mm，外径5mm的铜管制成的回路型振荡流热管，管内封装的工作液体为蒸馏水，封装量约50％。Figure 4 is a combined oscillating flow heat pipe with an evaporative heat exchange connection section. As shown in Figure 4, the combined oscillating flow heat pipe with evaporative heat exchange connection section is composed of multiple stages of oscillating flow heat pipe combination units connected in series as shown in Figure 3, and this embodiment is a three-stage oscillating flow heat pipe combination unit connected in series. The secondary oscillating flow heat pipe of the first-stage oscillating flow heat pipe combination unit 1 is the primary oscillating flow heat pipe of the second-level oscillating flow heat pipe combination unit 2, and the secondary oscillating flow heat pipe of the second-level oscillating flow heat pipe combination unit 2 is the first The primary oscillating flow heat pipe of the 3rd stage oscillating flow heat pipe combination unit 3, the secondary oscillating flow heat pipe of the N-1st oscillating flow heat pipe combination unit N-1 is the primary oscillating flow heat pipe of the Nth oscillating flow heat pipe combination unit N, N is 3 in this embodiment. The evaporating end of the primary oscillating flow heat pipe of the first-stage oscillating flow heat pipe combination unit is the evaporating end of the combined oscillating flow heat pipe with an evaporation heat exchange connection section, and the condensation end of the secondary oscillating flow heat pipe of the third-stage oscillating flow heat pipe combination unit It is the condensation end of the combined oscillating flow heat pipe with the evaporative heat exchange connection section. The working fluid of the evaporative heat exchange joint section of the three-stage oscillating flow heat pipe combination unit is distilled water. Similar to the oscillating flow heat pipe combination unit shown in Figure 3, the primary oscillating flow heat pipes and the secondary oscillating flow heat pipes of the oscillating flow heat pipe combination units at all levels are loop-type oscillating flow heat pipes made of copper tubes with an inner diameter of 3 mm and an outer diameter of 5 mm. , the working liquid encapsulated in the tube is distilled water, and the encapsulation volume is about 50%.

如图5所示的并联式振荡流热管组合单元，初级振荡流热管和次级振荡流热管为两组管路平面水平布置的并联式组合振荡流热管，并联式初级振荡流热管201为4支振荡流热管并联组合，并联式次级振荡流热管202也为4支振荡流热管并联组合，并联式初级振荡流热管201和并联式次级振荡流热管202与蒸发换热联接段103构成散热面积较大的振荡流热管组合单元，与图3的振荡流热管组合单元同样，并联式初级振荡流热管201在蒸发换热联接段103的下部，并联式次级振荡流热管202在蒸发换热联接段103的上部。蒸发换热联接段103为竖直放置的密闭立方体容器，容器内充的工作液104为蒸馏水或乙醇，工作液浸没组成并联式初级振荡流热管201全部振荡流热管的冷凝端，组成并联式次级振荡流热管202全部振荡流热管的蒸发端均在工作液液面以上。蒸发换热联接段103容器内部用真空泵抽真空至10-1～10-2Pa后充液。组成并联式初级振荡流热管201和并联式次级振荡流热管202的振荡流热管均为由内径3mm，外径5mm的铜管制成的回路型振荡流热管，管内封装的工作液体为蒸馏水，封装量约50％。由多级级并联式振荡流热管组合单元串联可组成并联式的带蒸发换热联接段的组合式振荡流热管，达到扩展散热面积的目的，可以显著改善振荡流热管传热能力。As shown in Figure 5, the combination unit of the parallel oscillating flow heat pipes, the primary oscillating flow heat pipes and the secondary oscillating flow heat pipes are two sets of parallel combined oscillating flow heat pipes arranged horizontally on the plane, and the parallel primary oscillating flow heat pipes 201 are four Parallel combination of oscillating flow heat pipes, parallel combination of secondary oscillating flow heat pipes 202 is also a parallel combination of 4 oscillating flow heat pipes, parallel primary oscillating flow heat pipes 201 and parallel secondary oscillating flow heat pipes 202 and evaporative heat exchange connection section 103 form a heat dissipation area The larger oscillating flow heat pipe combination unit is the same as the oscillating flow heat pipe combination unit in FIG. Upper part of segment 103. The evaporative heat exchange connecting section 103 is a closed cubic container placed vertically. The working liquid 104 filled in the container is distilled water or ethanol. The evaporating ends of all the oscillating flow heat pipes 202 of the first stage oscillating flow heat pipes are above the liquid level of the working fluid. The interior of the container in the evaporating heat exchange joint section 103 is evacuated to 10 -1 ~ 10 -2 Pa by a vacuum pump and then filled with liquid. The oscillating flow heat pipes that make up the parallel primary oscillating flow heat pipe 201 and the parallel secondary oscillating flow heat pipe 202 are loop-type oscillating flow heat pipes made of copper tubes with an inner diameter of 3 mm and an outer diameter of 5 mm. The working liquid encapsulated in the tube is distilled water. The encapsulation volume is about 50%. The combination of multi-stage parallel oscillating flow heat pipe units can be connected in series to form a parallel combined oscillating flow heat pipe with evaporative heat exchange joints to achieve the purpose of expanding the heat dissipation area and significantly improve the heat transfer capacity of the oscillating flow heat pipe.

本发明适用于高效紧凑换热器、工业余热回收、太阳能热利用等领域。The invention is applicable to the fields of high-efficiency and compact heat exchangers, industrial waste heat recovery, solar heat utilization and the like.

Claims (5)

1. the combined oscillatory flow heat pipe with the evaporation and heat-exchange connecting section is characterized in that, the combined oscillatory flow heat pipe of band evaporation and heat-exchange connecting section is composed in series by N level oscillating flow heat pipe assembled unit, and N is 1～3;
Described oscillating flow heat pipe assembled unit is by elementary oscillating flow heat pipe (101), secondary oscillating flow heat pipe (102) and evaporation and heat-exchange connecting section (103) constitute, evaporation and heat-exchange connecting section (103) is the perpendicular closed container of putting, evaporation and heat-exchange connecting section (103) container vacuumizes, refill working solution (104) and sealing, one end of elementary oscillating flow heat pipe (101) places in the evaporation and heat-exchange connecting section (103), and elementary oscillating flow heat pipe (101) level is fixed in the bottom of evaporation and heat-exchange connecting section (103), one end of secondary oscillating flow heat pipe (102) places in the evaporation and heat-exchange connecting section (103), and secondary oscillating flow heat pipe (102) level is fixed in the top of evaporation and heat-exchange connecting section (103), the end that elementary oscillating flow heat pipe (101) inserts in the evaporation and heat-exchange connecting section (103) is a condensation end, it is radiating end, the end of elementary oscillating flow heat pipe (101) outside evaporation and heat-exchange connecting section (103) is evaporation ends, it is heat absorbing end, the end that secondary oscillating flow heat pipe (102) inserts in the evaporation and heat-exchange connecting section (103) is an evaporation ends, end outside evaporation and heat-exchange connecting section (103) is a condensation end, working solution (104) places in the evaporation and heat-exchange connecting section (103), the condensation end of elementary oscillating flow heat pipe (101) is immersed in the working solution (104), and the evaporation ends of secondary oscillating flow heat pipe (102) is more than the liquid level of working solution (104);
In the N level oscillating flow heat pipe assembled unit of the combined oscillatory flow heat pipe of band evaporation and heat-exchange connecting section, the secondary oscillating flow heat pipe of the 1st grade of oscillating flow heat pipe assembled unit (1) is the elementary oscillating flow heat pipe of the 2nd grade of oscillating flow heat pipe assembled unit (2), the secondary oscillating flow heat pipe of the 2nd grade of oscillating flow heat pipe assembled unit (2) is the elementary oscillating flow heat pipe of 3rd level oscillating flow heat pipe assembled unit (3), the secondary oscillating flow heat pipe of N-1 level oscillating flow heat pipe assembled unit (N-1) is the elementary oscillating flow heat pipe of N level oscillating flow heat pipe assembled unit (N), the evaporation ends of the elementary oscillating flow heat pipe of the 1st grade of oscillating flow heat pipe assembled unit (1) is the evaporation ends of the combined oscillatory flow heat pipe of band evaporation and heat-exchange connecting section, and the condensation end of the secondary oscillating flow heat pipe of N level oscillating flow heat pipe assembled unit (N) is the condensation end of the combined oscillatory flow heat pipe of band evaporation and heat-exchange connecting section.
2. a kind of combined oscillatory flow heat pipe according to claim 1 with the evaporation and heat-exchange connecting section, its spy
Described elementary oscillating flow heat pipe (101) and secondary oscillating flow heat pipe (102) are single loop type oscillating flow heat pipe or Dan Zhifei loop type oscillating flow heat pipe.
3. a kind of combined oscillatory flow heat pipe with the evaporation and heat-exchange connecting section according to claim 1 is characterized in that, vacuumizes before described evaporation and heat-exchange connecting section (103) the container filling operation liquid, and vacuum is 10 -1～10 -2Pa.
4. a kind of combined oscillatory flow heat pipe with the evaporation and heat-exchange connecting section according to claim 1 is characterized in that described working solution (104) is distilled water, ethanol, acetone or cold-producing medium R141b.
5. a kind of combined oscillatory flow heat pipe according to claim 1 with the evaporation and heat-exchange connecting section, it is characterized in that, elementary oscillating flow heat pipe in the described oscillating flow heat pipe assembled unit is a parallel elementary oscillating flow heat pipe (201), secondary oscillating flow heat pipe is a parallel secondary oscillating flow heat pipe (202), described parallel elementary oscillating flow heat pipe (201) and parallel secondary oscillating flow heat pipe (202) are by 2～5 loop type oscillating flow heat pipes or the non-loop type oscillating flow heat pipe composition that is arranged in parallel, and the pipeline plane of loop type oscillating flow heat pipe or non-loop type oscillating flow heat pipe is arranged horizontally or vertically arranges.
CN2010102388564A 2010-07-26 2010-07-26 Combined oscillatory flow heat pipe with evaporation and heat exchange connecting section Expired - Fee Related CN101907414B (en)

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CN110793237A (en) * 2018-08-01 2020-02-14 祁同刚 Low-grade waste heat recycling technology
CN110160378A (en) * 2019-04-25 2019-08-23 南华大学 Breathing heat-exchanger rig and heat-exchange method based on decalescence device
CN111669952A (en) * 2020-07-10 2020-09-15 山东省科学院能源研究所 A data center immersion cooling device

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