Heat pipe heat dissipation device

Abstract

The utility model provides a heat pipe heat dissipation device. The heat pipe heat dissipation device comprises a cabinet body, a control module installed on the cabinet body, a condensation fan, an evaporation fan and a plurality of circulation pipelines which are filled with cooling media and are mutually independent. The control module is electrically connected to the condensation fan and the evaporation fan; an upper chamber and a lower chamber are arranged in the cabinet body, the condensation fan is fixed in the upper chamber, and the evaporation fan is fixed in the lower chamber; the circulating pipeline comprises an evaporating pipe assembly and a condensing pipe assembly, the evaporating pipe assembly and the condensing pipe assembly respectively comprise a plurality of pipe fittings arranged in parallel and a collecting pipe for communicating the pipe fittings into a whole, and a liquid viewing mirror is arranged at an outlet and / or an inlet of the evaporating pipe assembly. According to the heat pipe heat dissipation device, the operation state of the circulating pipe fitting can be rapidly judged through the liquid sight glass, then work of the heat pipe heat dissipation device can be adjusted in time according to the state change condition, and the working efficiency of the device can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration equipment, and in particular relates to a heat pipe heat dissipation device. Background Art

[0002] In application scenarios such as communication base stations and data rooms, especially in the field of charging piles, heat pipes are often used to cool equipment. Similar to air conditioners, heat pipes use a phase change cooling system that has the characteristics of efficient heat transfer; unlike air conditioners, heat pipes do not require a compressor as a power output, and have inherent advantages in energy saving and noise reduction, and are favored by more and more users. However, the heat pipe heat dissipation device in the related technology has many components and many factors that affect the operating efficiency. During operation, in order to determine the operating status of the device, various data collection and calculations must be performed. The process is complicated and it is difficult to quickly confirm the operating status. In the event of certain emergencies, it is difficult to take timely countermeasures, which is not conducive to improving the operating efficiency and safety of the device. Utility Model Content

[0003] The technical purpose of the utility model is to provide a heat pipe cooling device, aiming to solve the problem in the related art that the operating status of the heat pipe cooling device is difficult to quickly know.

[0004] To solve the above technical problems, the utility model is implemented as follows: a heat pipe heat dissipation device comprises: a cabinet, a control module installed on the cabinet, a condensing fan, an evaporating fan and a plurality of circulation pipelines filled with cooling medium and independent of each other; the control module is electrically connected to the condensing fan and the evaporating fan; an upper chamber and a lower chamber are arranged in the cabinet, the condensing fan is fixed in the upper chamber, and the evaporating fan is fixed in the lower chamber; the circulation pipeline comprises an evaporating tube assembly and a condensing tube assembly, the evaporating tube assembly and the condensing tube assembly respectively comprise a plurality of pipe fittings arranged in parallel and a collecting pipe connecting the plurality of pipe fittings into one, and a sight glass is arranged at the outlet and / or the inlet of the evaporating tube assembly.

[0005] Furthermore, the charging amount of the cooling medium in each circulation pipeline satisfies the following relationship: V min ≤V max ≤V min (1+15)%, where V min Indicates the filling amount corresponding to the circulation pipeline with the least cooling medium among all circulation pipelines, V max Indicates the filling amount corresponding to the circulating pipeline filled with the most cooling medium among all the circulating pipelines.

[0006] Furthermore, each condenser tube assembly is stacked and arranged in the upper chamber, and each evaporator tube assembly is stacked and arranged in the lower chamber.

[0007] Furthermore, fins are provided between two adjacent condenser tube assemblies and between two adjacent evaporator tube assemblies.

[0008] Furthermore, one of the multiple circulation pipelines is a spare circulation pipeline.

[0009] Furthermore, the circulation pipeline is also provided with a filling port for filling the cooling medium.

[0010] Furthermore, in the same circulation pipeline, an air guide pipe is connected between the outlet of the evaporator tube assembly and the inlet of the condenser tube assembly, a liquid guide pipe is connected between the inlet of the evaporator tube assembly and the outlet of the condenser tube assembly, and the filling port is arranged on the air guide pipe or on the liquid guide pipe.

[0011] Furthermore, a temperature sensor is installed at the air inlet and / or the air outlet of the condensing fan, and the temperature sensor is electrically connected to the control module.

[0012] Furthermore, a temperature sensor is installed at the air inlet and / or the air outlet of the evaporator fan, and the temperature sensor is electrically connected to the control module.

[0013] Furthermore, the angle between the pipe fitting and the cabinet wall is not zero.

[0014] Compared with the prior art, the heat pipe heat dissipation device in the utility model has the following beneficial effects: the circulation pipeline is equipped with one or more sight glasses, which can be used to observe the state of the medium in the cold zone of the pipe, and then the working state of the circulation pipeline can be quickly determined. In other words, no matter whether the cooling medium is in a gaseous state, a liquid state, or a gas-liquid mixed state, it can be directly observed visually, and the mixing degree of gas and liquid and the dynamic changes can be quickly estimated, so as to confirm the operating state of the device, and then timely adjustments can be made in response to certain abnormal situations. In addition, the heat pipe heat dissipation device of the present application has a simple overall structure, is easy to install and operate, and has a low production cost, which is conducive to large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the heat pipe heat dissipation device in the embodiment of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of the heat pipe heat dissipation device in the embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the circulation flow of the cooling medium in a single circulation pipeline in an embodiment of the utility model;

[0018] Figure 4 It is a schematic diagram of the assembly structure of multiple circulation pipelines in an embodiment of the utility model.

[0019] In the accompanying drawings, the various reference numerals represent: 1. cabinet; 11. upper chamber; 12. lower chamber; 13. partition; 14. filter; 2. condensing fan; 3. evaporating fan; 4. circulation pipeline; 41. evaporating tube assembly; 42. condensing tube assembly; 43. sight glass; 44. collecting pipe; 45. air guide tube; 46. liquid guide tube; 47. filling port. DETAILED DESCRIPTION

[0020] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] Example:

[0024] like Figure 1-4As shown, in this embodiment, the heat pipe cooling device includes: a cabinet 1, a control module installed on the cabinet 1 (not shown in the figure), a condensing fan 2, an evaporating fan 3 and a plurality of circulating pipelines 4 filled with cooling medium and independent of each other; the control module is electrically connected to the condensing fan 2 and the evaporating fan 3; an upper chamber 11 and a lower chamber 12 are provided in the cabinet 1, the condensing fan 2 is fixed in the upper chamber 11, and the evaporating fan 3 is fixed in the lower chamber 12; the circulating pipeline 4 includes an evaporating tube assembly 41 and a condensing tube assembly 42, the evaporating tube assembly 41 and the condensing tube assembly 42 respectively include a plurality of parallelly arranged pipes and a collecting pipe 44 connecting the plurality of pipes into one, and a sight glass 43 is provided at the outlet and / or inlet of the evaporating tube assembly 41.

[0025] Specifically, the present embodiment is provided with a plurality of independent circulation pipelines 4, each of which can operate independently, and the failure of any circulation pipeline 4 does not affect the normal operation of other heat pipes. The circulation pipeline 4 in the present embodiment is equipped with one or more sight glasses 43, which can be installed only at the outlet of the evaporation tube assembly 41, or only at the inlet of the evaporation tube assembly 41, or at the outlet and inlet of the evaporation tube assembly 41 at the same time, without limitation. In some more specific embodiments, an opening matching the shape of the sight glass 43 is provided at the corresponding position in the pipeline, and the sight glass 43 can be welded and fixed on the opening to ensure that there is no air leakage or liquid leakage, and the cooling medium in the pipeline can be directly observed. By observing the state of the cooling medium in the pipe, the working state of the circulation pipeline can be quickly determined. That is, no matter whether the cooling medium is in a gaseous state, a liquid state or a gas-liquid mixed state, it can be directly observed visually, and the mixing degree of gas and liquid and the dynamic change can also be quickly estimated, so as to confirm the operating state of the device, and then timely adjustments can be made to deal with certain abnormal situations. Moreover, the heat pipe heat dissipation device of this embodiment has a simple overall structure, is easy to install and operate, and has a low manufacturing cost, which is conducive to large-scale promotion and use. The pipe fittings in this embodiment can be flat pipes, and multiple pipe fittings arranged in parallel can form a parallel flow heat exchanger. A partition 13 is provided in the cabinet 1, and the partition 13 separates the cabinet 1 into an upper chamber 11 and a lower chamber 12, which are used for condensation and evaporation respectively; a filter 14 can also be provided on the cabinet 1, and the filter 14 can filter dust impurities in the air.

[0026] In the present embodiment, a filling port 47 for filling a cooling medium is further provided on the circulation pipeline 4, and the filling port 47 can be used to add the cooling medium. Furthermore, in the present embodiment, in the same circulation pipeline 4, an air duct 45 is connected between the outlet of the evaporator tube assembly 41 and the inlet of the condenser tube assembly 42, a liquid duct 46 is connected between the inlet of the evaporator tube assembly 41 and the outlet of the condenser tube assembly 42, and the filling port 47 is arranged on the air duct 45 or on the liquid duct 46. Specifically. The evaporator tube assembly 41, the air duct 45, the condenser tube assembly 42, and the liquid duct 46 are connected as a whole to form the circulation pipeline 4. The liquid duct 46 and the liquid duct 46 can be copper tubes. The present embodiment adopts parallel flow flat tubes as heat pipes, and divides them into an evaporation section and a condensation section. The partition 13 of the cabinet 1 separates two upper and lower chambers isolated from each other. The condensation section of the upper chamber 11 is connected to the atmosphere, and the evaporation section of the lower chamber 12 is connected to the heat source. As Figure 3 As shown, when working, the cooling medium absorbs the heat emitted by the heat source in the evaporation tube assembly 41, gradually changes from liquid to gas, and rises along each flat tube to the header 44 corresponding to the evaporation tube assembly 41. After the cooling medium vapor converges in the header 44, it rises along the air guide 45 and enters the header 44 corresponding to the condensation tube assembly 42. Under the distribution of the header 44, the cooling medium vapor enters the condensation tube assembly 42, releases heat to the atmosphere, and gradually changes from gas to liquid in the condensation tube assembly 42. After the liquid cooling medium converges in the header 44 of the condensation tube assembly 42, it flows back to the header 44 of the evaporation tube assembly 41 along the liquid guide 46 under the action of gravity, thus completing a cycle. The split heat pipe takes away the heat from the heat source through the repeated phase change process between the cooling medium liquid and gas.

[0027] In this embodiment, further, Figure 2 and 4 As shown, each condenser tube assembly 42 is stacked in the upper chamber 11, and each evaporator tube assembly 41 is stacked in the lower chamber 12, that is, each circulation pipeline 4 is stacked to form a multi-layer separated gravity heat pipe assembly, which is beneficial to increase the uniformity of heat exchange and make the entire heat exchange heat distribution uniform. The device connection position is compact, which is beneficial to saving installation space. Furthermore, in this embodiment, fins (not shown in the figure) are provided between two adjacent condenser tube assemblies 42 and two adjacent evaporator tube assemblies 41. The presence of the fins can increase the heat dissipation surface area, thereby increasing the heat transfer efficiency between different layers of tube assemblies. The fins can be made of materials with high thermal conductivity such as copper, iron, and aluminum, which are cheap and have good thermal conductivity.

[0028] In this embodiment, the amount of cooling medium in each circulation pipeline 4 satisfies the following relationship: V min ≤V max ≤V min (1+15)%, where Vmin Indicates the filling amount corresponding to the circulation pipeline 4 filled with the least cooling medium among all the circulation pipelines 4, V max Indicates the filling amount corresponding to the circulation pipeline 4 filled with the most cooling medium among all the circulation pipelines 4.

[0029] Specifically, the amount of cooling medium in each circulation pipeline 4 can be the same or similar. Preferably, the amount of cooling medium in each circulation pipeline 4 is the same. It is more conducive to quickly completing the filling operation during the installation of the equipment and shortening the research and development cycle. It should be noted that when filling the same weight of cooling medium matching test, it is only necessary to gradually add liquid, and the operation process is relatively simple. In the related art, in order to improve the refrigeration efficiency to a certain extent, different amounts of cooling medium will be filled in different circulation pipelines 4 in the multi-layer pipeline. However, if different weights of cooling medium are filled, because different layers of heat pipes affect each other, there are various couplings, and there are various combinations of corresponding filling amounts. The number of matching times will increase by one order of magnitude or even multiple orders of magnitude, which is very time-consuming and labor-intensive, and the improvement of refrigeration efficiency is not obvious. It should also be noted that a characteristic of a single-layer heat pipe is that the range of the optimal cooling medium filling amount is usually relatively wide. If each circulation pipeline is filled with different cooling media, then when the cooling medium filling amount of any circulation pipeline is matched, it will be in a very wide range like a single-layer heat pipe, which is not conducive to the determination of the final cooling medium filling amount. However, by charging the same weight of cooling medium, due to the differences in each layer of heat pipes, the range of the optimal cooling medium filling amount will be greatly narrowed (it can be understood that the final cooling medium filling amount is the common divisor of the optimal cooling medium filling range of each layer of heat pipes, and this common divisor will be within a very small range, which is a great help for matching the cooling medium filling amount), and the refrigeration efficiency can be guaranteed.

[0030] In this embodiment, one of the multiple circulation pipelines 4 is a spare circulation pipeline 4. The number of circulation pipelines 4 can be three, four, five, six, etc., and is not limited here. In practical applications, dust accumulation in the pipeline or leakage of the cooling medium may cause the cooling capacity of the circulation pipeline 4 to decrease. In this embodiment, a redundant design is made when designing the pipeline, and one more layer of heat pipes is stacked (one more circulation pipeline 4 is set). When any layer of heat pipes fails, the spare circulation pipeline 4 can be activated to promptly make up for the problem of insufficient heat dissipation capacity without affecting the operation of other heat pipes.

[0031] In this embodiment, the angle between the pipe fittings and the wall of the cabinet 1 is not zero. The evaporator fan 3 and the condenser fan 2 are both fixed on one of the side walls of the cabinet 1, so that the pipe fittings in the condenser tube assembly 42 and the evaporator tube assembly 41 respectively form a certain angle with the wall of the cabinet 1, that is, the condenser tube assembly 42 and the evaporator tube assembly 41 are both inclined at a certain angle (for example: 5°C ~ 30°C) in the cabinet 1, which is beneficial to increase the refrigeration contact area and improve the heat exchange efficiency.

[0032] Furthermore, in this embodiment, the sight glass 43 and various temperature sensors and pressure sensors can be used in combination. The use of the sight glass 43 can quickly make a general assessment and confirmation of the heat pipe cooling device. The use of various temperature data and pressure data is conducive to improving the accuracy of the working state assessment of the heat pipe cooling device, so that it is convenient for the staff to make timely and effective adjustments to the working state of the heat pipe cooling device, thereby improving the refrigeration efficiency. In some specific embodiments, a temperature sensor is installed at the air inlet and / or the air outlet of the condensing fan 2, and the temperature sensor is electrically connected to the control module; that is, the temperature sensor can be installed at the air inlet or the air outlet of the condensing fan 2, and the temperature sensor can also be installed at the air inlet and the air outlet of the condensing fan 2 at the same time. A temperature sensor is installed at the air inlet and / or the air outlet of the evaporating fan 3, and the temperature sensor is electrically connected to the control module; that is, the temperature sensor can be installed at the air inlet or the air outlet of the evaporating fan 3, and the temperature sensor can also be installed at the air inlet and the air outlet of the evaporating fan 3 at the same time, so that the control module can judge the operating state of the separated gravity heat pipe assembly at this time according to the temperature monitored by each temperature sensor, and then determine the optimal speed of the condensing fan 2 and the evaporating fan 3, or alarm the operating state at this time. In some specific embodiments, a pressure sensor is also installed at the filling port 47, and the pressure sensor is electrically connected to the control module, so that the pressure of the cooling medium in the corresponding circulation pipeline can be determined by the pressure sensor, and the accuracy of the working state evaluation of the heat pipe heat dissipation assembly is further improved.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat pipe heat dissipation device, characterized in that: It includes a cabinet, a control module installed on the cabinet, a condensing fan, an evaporating fan and a plurality of circulation pipelines filled with cooling medium and independent of each other; the control module is electrically connected to the condensing fan and the evaporating fan; an upper chamber and a lower chamber are arranged in the cabinet, the condensing fan is fixed in the upper chamber, and the evaporating fan is fixed in the lower chamber; the circulation pipeline includes an evaporating tube assembly and a condensing tube assembly, the evaporating tube assembly and the condensing tube assembly respectively include a plurality of pipes arranged in parallel and a collecting pipe connecting the plurality of pipes into one, and a sight glass is arranged at the outlet and / or the inlet of the evaporating tube assembly.

2. The heat pipe heat dissipation device according to claim 1, characterized in that: The amount of cooling medium in each of the circulation pipelines satisfies the following relationship: V min ≤V max ≤V min (1+15)%, where V min represents the filling amount corresponding to the circulation pipeline filled with the least cooling medium among all the circulation pipelines, V max It indicates the filling amount corresponding to the circulation pipeline filled with the most cooling medium among all the circulation pipelines.

3. The heat pipe heat dissipation device according to claim 1, characterized in that: The condenser tube assemblies are stacked in the upper chamber, and the evaporator tube assemblies are stacked in the lower chamber.

4. The heat pipe heat dissipation device according to claim 3, characterized in that: Fins are arranged between two adjacent condenser tube assemblies and between two adjacent evaporator tube assemblies.

5. The heat pipe heat dissipation device according to claim 1, characterized in that: One of the plurality of circulation pipelines is a spare circulation pipeline.

6. The heat pipe heat dissipation device according to claim 1, characterized in that: The circulation pipeline is also provided with a filling port for filling cooling medium.

7. The heat pipe heat dissipation device according to claim 6, characterized in that: In the same circulation pipeline, an air guide pipe is connected between the outlet of the evaporator tube assembly and the inlet of the condenser tube assembly, a liquid guide pipe is connected between the inlet of the evaporator tube assembly and the outlet of the condenser tube assembly, and the filling port is arranged on the air guide pipe or on the liquid guide pipe.

8. The heat pipe heat dissipation device according to claim 1, characterized in that: A temperature sensor is installed at the air inlet and / or the air outlet of the condensing fan, and the temperature sensor is electrically connected to the control module.

9. The heat pipe heat dissipation device according to claim 1, characterized in that: A temperature sensor is installed at the air inlet and / or the air outlet of the evaporator fan, and the temperature sensor is electrically connected to the control module.

10. The heat pipe heat dissipation device according to claim 1, characterized in that: The angle between the pipe fitting and the cabinet wall is not zero.

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