Cold source activated heat bar state detection method, system and electronic device

Abstract

A method, system, and electronic device for detecting the status of a heat pipe activated by a cold source are disclosed. The method includes the following steps: locally cooling the cooling point of the heat pipe; acquiring temperature measurement data from two or more temperature measurement points located below the cooling point of the heat pipe, arranged sequentially downwards; and analyzing the temperature measurement data to determine the operating status of the heat pipe: if two or more temperature measurement data show a consistent trend, the heat pipe is considered to be in normal operating condition; if two or more temperature measurement data show slow changes and the temperature curves exhibit a stepped distribution, the heat pipe is considered to be in abnormal operating condition. The technical solution provided in this application can improve the reliability of the detection results of the heat pipe's operating status.

Description

Technical Field

[0001] This invention relates to a method for detecting the status of a heat pipe activated by a cold source, belonging to the field of frozen soil temperature control technology, and also relates to a system and electronic equipment for detecting the status of a heat pipe activated by a cold source. Background Technology

[0002] In order to construct infrastructure in permafrost regions and optimize the foundation of permafrost areas, heat pipes are often used to freeze and reinforce the permafrost.

[0003] The number of heat pipes used varies depending on the geology of the permafrost in different regions, and the spacing between heat pipes in densely populated areas can be as short as 1 meter; the use of such a large number of heat pipes poses a huge challenge to the subsequent monitoring of the operation status of the heat pipes.

[0004] How to detect if there is still working medium inside the heat pipe and if the heat pipe can still operate normally? In the existing technology "201710588132.4 - A heat pipe operating condition data detection device for all-weather frozen soil areas", only one temperature measuring point is set below the cooling point to judge the activation effect of the heat pipe. When the temperature measuring point malfunctions, it will be very easy to mistakenly judge that the heat pipe has failed or is operating normally.

[0005] Therefore, how to provide a method for detecting the status of a heat pipe activated by a cold source, which can improve the reliability of the detection results of the heat pipe's operating status, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] To address the shortcomings of the existing technology, the present invention aims to improve the reliability of the detection results of the operating status of a heat pipe. The present invention provides a method for detecting the status of a heat pipe activated by a cold source, comprising the following steps: locally cooling the cooling point of the heat pipe; acquiring temperature measurement data from two or more temperature measurement points located below the cooling point of the heat pipe, wherein the number of temperature measurement points is two or more, and the temperature measurement points are arranged sequentially downwards; analyzing and judging the operating status of the heat pipe based on the temperature measurement data: if two or more temperature measurement data show a consistent change, the heat pipe is judged to be in normal operating condition; if two or more temperature measurement data show a slow change and the temperature value curves are arranged in a stepped pattern, the heat pipe is judged to be in abnormal operating condition.

[0007] According to a first embodiment of the present invention, a technical solution for detecting the state of a heat pipe activated by a cold source is provided:

[0008] In a technical solution for a method of detecting the state of a heat pipe activated by a cold source, the method includes the following steps: locally cooling the cooling point of the heat pipe; acquiring temperature measurement data from two or more temperature measurement points located below the cooling point of the heat pipe, wherein the number of temperature measurement points is two or more and arranged sequentially downwards; and analyzing and judging the working state of the heat pipe based on the temperature measurement data: if two or more temperature measurement data show a consistent change, the heat pipe is judged to be in normal working state; if two or more temperature measurement data show a slow change and the temperature value curves are arranged in a stepped manner, the heat pipe is judged to be in abnormal working state.

[0009] Furthermore, as a more preferred embodiment of the present invention, the uniformity of the temperature measurement data below specifically means that after local cooling of the heat pipe cooling point, the temperature measurement value of the temperature measurement data below gradually decreases over time and the value tends to be uniform; the slow change of the temperature measurement data below and the step-like arrangement of the temperature value curves specifically means that after local cooling of the heat pipe cooling point, the cooling rates of multiple temperature measurement points below are different, the temperature value curves of multiple temperature measurement data below decrease sequentially, and there are intervals between the temperature value curves of multiple temperature measurement data below.

[0010] Furthermore, as a more preferred embodiment of the present invention, the "the lower temperature measuring points are arranged downwards in sequence" specifically means that the plurality of lower temperature measuring points are arranged downwards from the side closer to the cooling point of the heat rod to the side farther away from the cooling point of the heat rod; preferably, the downward arrangement is arranged downwards at equal intervals; preferably, the downward arrangement is arranged vertically downwards.

[0011] Furthermore, as a more preferred embodiment of the present invention, the method further includes the following steps: obtaining the upper temperature measurement data of the upper temperature measurement point above the cooling point of the heat pipe; analyzing and judging the working state of the heat pipe by combining the upper temperature measurement data and the lower temperature measurement data: if the changes in the upper temperature measurement data and the lower temperature measurement data are the same or similar, then it is determined that the heat pipe is in an abnormal working state.

[0012] Furthermore, as a more preferred embodiment of the present invention, the method further includes the following steps: combining the upper temperature measurement data with the lower temperature measurement data to obtain first optimized lower temperature measurement data; obtaining the working medium temperature data of the condensing working medium inside the heat pipe based on the first optimized lower temperature measurement data; analyzing the current internal pressure value of the heat pipe based on the working medium temperature data and the characteristics of the working medium, and issuing a heat pipe pressure abnormality alarm if the internal pressure value is lower than a first pressure threshold; wherein, the first pressure threshold is related to the characteristics of the working medium.

[0013] Furthermore, as a more preferred embodiment of the present invention, the method further includes: acquiring circumferential temperature measurement data from circumferential temperature measurement points at the same height as the cooling point of the heat pipe; combining the upper temperature measurement data and the circumferential temperature measurement data to correct and optimize the lower temperature measurement data, obtaining second optimized lower temperature measurement data; acquiring working medium temperature data of the condensing working medium inside the heat pipe based on the second optimized lower temperature measurement data; analyzing the current internal pressure value of the heat pipe based on the working medium temperature data and the characteristics of the working medium; if the internal pressure value is lower than a first pressure threshold, issuing a heat pipe pressure abnormality alarm; wherein, the first pressure threshold is related to the characteristics of the working medium.

[0014] Furthermore, as a more preferred embodiment of the present invention, the local cooling method includes the following steps: selecting a cooling point on the heat rod; placing a cold source on the heat rod so that the cold source cools the cooling point; the refrigeration principle of the cold source is one or more of semiconductor refrigeration, heat pump compressor refrigeration, and cold storage device refrigeration.

[0015] Furthermore, as a more preferred embodiment of the present invention, the method further includes: applying vibration to the wall of the hot rod, the frequency of which is related to the resonant frequency of the high-pressure working medium inside the hot rod.

[0016] According to a second embodiment of the present invention, a technical solution for a cold-source activated hot rod status detection system is provided:

[0017] In a technical solution of a cold-source activated hot rod condition detection system, the system is used to execute the aforementioned cold-source activated hot rod condition detection method. The system includes: an end controller; a cold source connected to the end controller for localized cooling of the hot rod, the cold source being positioned at a cooling point; a temperature measuring device connected to the end controller for measuring the hot rod wall temperature data; and a communication device connected to the end controller for transmitting the temperature measuring data. The cold-source activated hot rod condition detection system provided in this application also possesses the beneficial effects of the aforementioned technical solutions.

[0018] According to a third embodiment of the present invention, a technical solution for an electronic device is provided:

[0019] In the technical solution of the electronic device, the electronic device includes: a computer program for executing the above-described method for detecting the state of a hot rod activated by a cold source; a memory for storing the computer program; and a processor for executing the computer program. The technical solution of the electronic device provided in this application also has the beneficial effects of the above-described technical solutions.

[0020] Compared to existing technologies, this solution achieves localized cooling of the heat pipe, causing the pipe wall to cool. The lower temperature inside the heat pipe is transferred to the interior, where the gas liquefies into droplets. These liquefied droplets flow downwards from the cooling point, further cooling the pipe wall below it. Since the working medium gas condenses and flows downwards along the pipe wall, the pipe wall below the cooling point is cooled by the droplets, and the temperature change pattern becomes more consistent. Therefore, by monitoring the vertically downward temperature measurement points below the cooling point, if two or more temperature readings show a consistent trend, the heat pipe can be determined to be in normal operating condition. The technical solution provided in this application improves the reliability of the heat pipe operating status detection results.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The technical solution provided in this application can improve the reliability of the detection results of the operating status of the heat pipe;

[0023] 2. The technical solution provided in this application has temperature measuring points arranged at equal intervals downwards, which can determine the falling speed of internal condensate droplets by analyzing cooling temperature fluctuations, and thus determine the size of the condensate droplets;

[0024] 3. The technical solution provided in this application determines whether the formation rate of condensate droplets meets the standard under the same temperature change rate, and determines whether the high pressure state of the working medium inside the heat rod meets the standard based on the formation rate of condensate droplets, and identifies whether there is a recent leak.

[0025] 4. The technical solution provided in this application has different condensation effects of the working medium under different temperatures and pressures. Combined with the pre-existing experimental data, the pressure inside the heat pipe can be judged based on the current temperature and flow rate of the condensate droplets, and the pressure value of the heat pipe can be given an early warning. Attached Figure Description

[0026] Figure 1 This is a flowchart of a method for detecting the state of a heat rod activated by a cold source, as described in an embodiment of the present invention.

[0027] Figure 2 This is a graph showing the experimental temperature data from Experiment 1 of the present invention;

[0028] Figure 3 This is a graph showing the experimental temperature data from comparative experiment 1 of the present invention;

[0029] Figure 4 This is a graph showing the experimental temperature data from comparative experiment 2 of the present invention;

[0030] Figure 5This is a graph showing the experimental temperature data from comparative experiment 3 of the present invention;

[0031] Figure 6 This is an experimental temperature data graph from Experiment 1 of the present invention, showing the effect of actively causing a sensor malfunction at one temperature measurement point. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0034] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0036] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0037] According to a first embodiment of the present invention, a technical solution for detecting the state of a heat pipe activated by a cold source is provided:

[0038] In a technical solution for a method of detecting the state of a heat pipe activated by a cold source, the method includes the following steps: locally cooling the cooling point of the heat pipe; acquiring temperature measurement data from two or more temperature measurement points located below the cooling point of the heat pipe, wherein the number of temperature measurement points is two or more and arranged sequentially downwards; and analyzing and judging the working state of the heat pipe based on the temperature measurement data: if two or more temperature measurement data show a consistent change, the heat pipe is judged to be in normal working state; if two or more temperature measurement data show a slow change and the temperature value curves are arranged in a stepped manner, the heat pipe is judged to be in abnormal working state.

[0039] It should be noted that the working medium mentioned in this application is a phase change liquid, specifically liquid ammonia.

[0040] In this solution, localized cooling of the heat pipe cools its walls, allowing the lower temperature inside the pipe to be transferred to the interior, where the gas liquefies into droplets. These liquefied droplets flow downwards from the cooling point, further cooling the pipe wall below it. Since the working medium gas condenses and flows downwards along the pipe wall, the pipe wall below the cooling point is cooled by the droplets, and the temperature change pattern becomes more consistent after cooling. Therefore, by monitoring the vertically downward temperature measurement points below the cooling point, if two or more temperature readings show a consistent trend, the heat pipe can be considered to be in normal operating condition. The technical solution provided in this application improves the reliability of the heat pipe operating status detection results.

[0041] While existing technologies exist that use a cold source to activate the heat pipe and detect the pipe wall temperature to determine whether the heat pipe is working properly, the applicant has found through research that when the working medium inside the heat pipe is lost, the inside of the heat pipe is basically ambient temperature and pressure air. When the heat pipe is cooled in this state, the pipe wall temperature below the cooling point will drop due to the conduction of cold energy through the pipe wall and the sinking of cold air inside the pipe. In other words, existing technologies that directly detect the heat pipe wall by using a single temperature measuring point below the cooling point or multiple temperature measuring points at the same horizontal level have the problem of inaccurate judgment.

[0042] To address the issue of inaccurate assessment of the operating status of a heat pipe when directly measuring the wall of a single temperature measuring point or multiple temperature measuring points at the same horizontal level below the cooling point, the applicant, through theoretical research and experimental analysis, discovered that when a normal heat pipe is activated by a cold source, a certain amount of liquid droplets flow downwards. This process cools the pipe wall to a certain extent at a distance below the cooling point, and the temperature of this section of the pipe wall tends to be uniform. Based on this research, this application's solution obtains temperature measurement data from two or more temperature measuring points spaced a certain distance below the cooling point. If the temperature changes of two or more of these data points tend to be consistent, the heat pipe can be determined to be in normal operating condition.

[0043] In the prior art, those skilled in the art have not been able to discover a solution of setting a temperature measuring point below the cooling point or setting multiple temperature measuring points at the same horizontal height of the heat pipe. Due to the aforementioned objective realities, the prior art cannot truly reflect whether the heat pipe is currently in normal operating condition.

[0044] It should be noted that this solution is specifically designed for testing heat pipes in permafrost regions during the summer. In summer, due to the high outside air temperature, the temperature of the heat dissipation section of the heat pipe is higher than that of the heat absorption section. The working media of the heat dissipation and absorption sections do not convert to each other, and the heat pipe is in an insulated state. At this time, the air temperature inside the heat dissipation and insulation sections is the same as the outside temperature. After cooling the cooling point of the heat pipe through a cold source, the air inside the cooling point liquefies upon cooling, forming water droplets near the cooling point. When the droplets are large enough, they flow downwards vertically along the cooling point. During this flow, the droplets exchange heat with the inner wall of the heat pipe below the cooling point. As the air in the cooling point area contracts and liquefies, high-pressure gas from other areas inside the heat pipe moves towards the cooling point, resulting in continuous liquefaction at the cooling point. Ultimately, the condensed droplets form a certain amount of condensate fluid, continuously cooling the inner wall of the heat pipe below the cooling point.

[0045] Specifically, in this embodiment of the invention, the uniformity of the temperature measurement data below means that after local cooling of the heat pipe cooling point, the temperature values ​​of the temperature measurement data below gradually decrease over time and the values ​​tend to be consistent; the slow change of the temperature measurement data below and the step-like arrangement of the temperature value curves specifically means that after local cooling of the heat pipe cooling point, the cooling rates of multiple temperature measurement points below are different, the temperature value curves of multiple temperature measurement data below decrease sequentially, and there are intervals between the temperature value curves of multiple temperature measurement data below.

[0046] It should be noted that when a working medium is present inside the hot rod, the cooling point will cause the high-pressure working medium gas near the cooling point to liquefy upon cooling. This liquefaction will then condense on the inner wall of the hot rod at the cooling point, producing condensate droplets. These droplets flow downwards from the cooling point, almost simultaneously cooling multiple temperature measurement points below the cooling point in this solution. Therefore, in the technical solution of this application, the temperatures measured at the multiple temperature measurement points below the cooling point exhibit the same temperature change pattern.

[0047] Specifically, when there is a working medium inside the heat pipe, the temperature test curve obtained by the technical solution of this application has the following characteristics:

[0048] First, multiple temperature measuring points at the bottom cool down almost simultaneously. Second, because the cooling is caused by condensate droplets, the temperature at multiple temperature measuring points at the bottom drops earlier than in the case without coolant. Third, also due to the second point, the temperature at multiple temperature measuring points at the bottom drops at a higher rate than in the case without coolant, meaning the temperature drops faster. Fourth, because the cooling is simultaneous and uniform, the cooling effect on multiple temperature measuring points at the bottom is consistent, meaning that the temperature curves at the bottom measuring points eventually tend to be consistent and change synchronously.

[0049] like Figure 2 In Experiment 1, the heat pipe contains a working medium, and four temperature measurement points (B1, B2, B3, and B4) are set below the cooling point. After cooling the cooling point, the temperatures of all the lower cooling points tend to be consistent and all show a relatively rapid downward trend. That is, under the action of the condensate fluid, the temperature data changes of two or more of the lower cooling points tend to be consistent.

[0050] like Figure 3 In Comparative Experiment 1, the heat pipe contained no working medium. Four temperature measuring points (B1, B2, B3, and B4) were set below the cooling point. The cooling point was directly cooled. After a certain cooling time, the first temperature measuring point below the cooling point (from top to bottom) was cooled first by the internal cold air, so its temperature dropped first and at the fastest rate on the temperature curve over time. The second temperature measuring point (from top to bottom) was cooled next, followed by the third, and then the fourth. Finally, the temperature curves of the four temperature measuring points were arranged in a stepped pattern.

[0051] like Figure 4As shown in Comparative Experiment 2, the heat pipe contains a working medium. Four circumferential temperature measuring points (B4a, B4b, B4c, and B4d) are set at the same horizontal height below the cooling point. After the cooling point is cooled for a period of time, the temperature at the measuring point below the cooling point drops relatively significantly, while the temperature data at the other circumferential measuring points changes relatively slowly. The temperature fluctuations are basically consistent, but the rate of decrease is slow, making them difficult to distinguish.

[0052] like Figure 5 In comparative experiment 3, there was no working medium inside the heat pipe. Four circumferential temperature measuring points (B4a, B4b, B4c, and B4d) were set at the same horizontal height below the cooling point. After the cooling point was cooled for a period of time, the temperature data of the four circumferential temperature measuring points showed a relatively slow trend, and the temperature fluctuations were basically the same, but the rate of decrease was slow and difficult to distinguish.

[0053] It should be noted that, by comparing Example 1 and Comparative Example 1, using the technical solution provided in this application, the temperature curves show a very obvious difference between scenarios where there is a working medium inside the heat pipe and scenarios where there is no working medium inside the heat pipe; compared with the solutions of the prior art, it is easier to identify.

[0054] It should be noted that, by comparing Comparative Example 2 and Comparative Example 3, under normal temperature measurement conditions, the data from one temperature measurement point in Comparative Example 2 is significantly different from the data from the other temperature measurement points. However, if the temperature measurement point located directly below the cooling point is faulty, it is highly likely that regardless of whether there is a working medium inside the heat pipe, the temperature graphs of Comparative Example 2 and Comparative Example 3 will show a relatively consistent trend of temperature change, that is, both will decrease relatively slowly and the temperature will tend to be consistent, making it difficult to distinguish between them.

[0055] In summary, the technical solution provided in this application can efficiently and accurately determine whether the heat pipe is activated and operating normally by detecting the temperature of the temperature measuring point in the vertical direction below the cooling point.

[0056] To avoid the situation where individual temperature measuring points fail to measure the actual temperature due to malfunctions, the number of temperature measuring points below the cooling point can be increased in practical applications to offset the inaccurate data caused by the failure of individual temperature measuring points.

[0057] like Figure 6 As shown, during Experiment 1, when a fault was actively induced in one temperature sensor (B2), the temperature curves of the other three temperature sensors (B1, B3, B4) all showed the same rapid and consistent decreasing curve state.

[0058] Specifically, in this embodiment of the invention, the phrase "the lower temperature measuring points are arranged sequentially downwards" means that multiple lower temperature measuring points are arranged downwards from the side closest to the heat rod cooling point to the side furthest from the heat rod cooling point.

[0059] It should be noted that the temperature measuring point below the cooling point is set vertically downwards to ensure accurate measurement of the temperature directly below the cooling point.

[0060] Specifically, in this embodiment of the invention, the downward arrangement refers to an equal-interval downward arrangement.

[0061] It should be noted that the temperature measuring points are arranged downwards at equal intervals. By analyzing the cooling temperature fluctuations, the falling speed of the internal condensate droplets can be determined, and thus the size of the condensate droplets can be determined. Based on the same temperature change rate, it can be determined whether the formation rate of the condensate droplets meets the standard. Based on the formation rate of the condensate droplets, it can be determined whether the high pressure state of the working medium inside the heat pipe meets the standard, and it can be identified whether there is a recent leak.

[0062] Specifically, in this embodiment of the invention, the downward arrangement is a vertical downward arrangement.

[0063] Specifically, in this embodiment of the invention, the following steps are also included: obtaining the upper temperature measurement data of the upper temperature measurement point above the cooling point of the heat pipe; analyzing and judging the working state of the heat pipe by combining the upper temperature measurement data and the lower temperature measurement data: if the changes in the upper temperature measurement data and the lower temperature measurement data are the same or similar, then it is determined that the heat pipe is in an abnormal working state.

[0064] It should be noted that for further accurate judgment, temperature data from the temperature measuring point above the cooling point should be obtained simultaneously. If there is no working medium inside the hot rod, the gas inside the hot rod will exhibit a gradual temperature change trend under the influence of the cooling point. That is, the temperature of the temperature measuring point closer to the cooling point will decrease first, while the temperature decrease will be delayed for those relatively far from the temperature measuring point, and the rate of temperature decrease will be relatively gradual. Considering that the cooling gas has a natural tendency to sink, when the distance from the lower and upper temperature measuring points to the cooling point is the same, the temperature of the temperature measuring point above the wall of the lower temperature measuring point will be relatively lower, but the difference will not be too large.

[0065] Based on the above, a more intuitive reference can be obtained in the embodiments of this solution: when there is a working medium inside the heat pipe, the temperature curves of the upper temperature measuring points show a gradual, relatively slow downward trend; the temperature curves of the lower temperature measuring points show a consistent change, with a relatively faster downward trend; that is, there is a clear difference between the temperature curves of the upper and lower temperature measuring points. When there is no working medium inside the heat pipe, the temperature curves of both the upper and lower temperature measuring points show a gradual, relatively slow downward trend.

[0066] Specifically, in this embodiment of the invention, the following steps are also included: combining the upper temperature measurement data with the lower temperature measurement data to obtain first optimized lower temperature measurement data; based on the first optimized lower temperature measurement data, obtaining the working medium temperature data of the condensing working medium inside the heat pipe; based on the working medium temperature data and the characteristics of the working medium, analyzing the current internal pressure value of the heat pipe; if the internal pressure value is lower than a first pressure threshold, issuing a heat pipe pressure abnormality alarm; wherein, the first pressure threshold is related to the characteristics of the working medium.

[0067] It should be noted that after cooling the cooling point of the heat pipe, the temperature change of the inner wall of the heat pipe will be affected by the following conditions: First, the heat conduction of the heat pipe wall. Without considering the cooling gas and condensate droplets inside the heat pipe, the temperature measuring point closer to the cooling point is more affected by the heat conduction of the heat pipe wall; Second, the heat conduction of the cooling gas inside the heat pipe has a cooling effect on the inner wall of the heat pipe; Third, the condensate droplets formed at the cooling point flow downwards and have a relatively strong cooling effect on the inner wall of the heat pipe below.

[0068] It should be noted that by analyzing the above temperature measurement data, the temperature change relationship of the above temperature measurement point under the influence of the cold source over time can be obtained; the above temperature measurement point is mainly affected by heat conduction from the heat pipe wall and heat conduction from the gas inside the heat pipe; by combining the above temperature measurement data, the below temperature measurement data can be optimized to eliminate the influence of heat conduction from the heat pipe wall and heat conduction from the gas inside the heat pipe on the data of the below temperature measurement point, thus obtaining the first optimized below temperature measurement data that only reflects the influence of condensate droplets on the below temperature measurement point.

[0069] By further analyzing the optimized temperature measurement data from the first lower section, and combining the heat conduction relationship between the working medium temperature and the hot rod wall temperature determined in the pre-test, the working medium temperature data was obtained.

[0070] Because the working medium condenses differently under different temperatures and pressures, and based on prior experimental data, the current internal pressure of the heat pipe can be determined according to the temperature and flow rate of the condensate droplets. If the current internal pressure of the heat pipe is detected to be lower than a first pressure threshold, an alarm for abnormal heat pipe pressure is issued. The technical solution provided in this application can provide early warning of the pressure value of the heat pipe.

[0071] Specifically, in this embodiment of the invention, the method further includes: acquiring circumferential temperature measurement data from circumferential temperature measurement points at the same height as the cooling point of the heat pipe; combining the upper temperature measurement data and the circumferential temperature measurement data to correct and optimize the lower temperature measurement data, obtaining second optimized lower temperature measurement data; acquiring working medium temperature data of the condensing working medium inside the heat pipe based on the second optimized lower temperature measurement data; analyzing the current internal pressure value of the heat pipe based on the working medium temperature data and the characteristics of the working medium; if the internal pressure value is lower than a first pressure threshold, issuing a heat pipe pressure abnormality alarm; wherein, the first pressure threshold is related to the characteristics of the working medium.

[0072] It should be noted that by combining circumferential temperature measurement data at the same height as the cooling point, since the influence of the cooling air inside the heat pipe is the same, the thermal conductivity parameters of the heat pipe under the same cooling conditions can be obtained. This data can then be used to correct and optimize the lower temperature measurement data by combining the upper temperature measurement data, resulting in second optimized lower temperature measurement data. The second optimized lower temperature measurement data reflects the influence of condensate droplets on the lower temperature measurement point more accurately than the first optimized lower temperature measurement data. Therefore, the final judgment of the internal pressure of the heat pipe is more accurate, further avoiding errors in heat pipe pressure abnormality alarms.

[0073] Specifically, in this embodiment of the invention, the local cooling method includes the following steps: selecting a cooling point on the heat rod; placing a cold source on the heat rod so that the cold source cools the cooling point; the refrigeration principle of the cold source is one or more of semiconductor refrigeration, heat pump compressor refrigeration, and cold storage device refrigeration.

[0074] It should be noted that the cold storage material used in the cold storage device is one or more of liquid nitrogen, dry ice, ice blocks, etc.

[0075] Specifically, in this embodiment of the invention, the method further includes: applying vibration to the wall of the hot rod, wherein the frequency of the vibration is related to the resonant frequency of the high-pressure working medium inside the hot rod.

[0076] It should be noted that by applying vibration to the wall of the heating rod, the gas in the high-pressure working medium inside the heating rod is accelerated to condense after the vibration is transmitted into the heating rod, thus speeding up the formation of droplets and improving the detection efficiency.

[0077] Specifically, in this embodiment of the invention, the temperature measurement method is one or more of thermistor temperature measurement and infrared temperature measurement points.

[0078] According to a second embodiment of the present invention, a technical solution for a cold-source activated hot rod status detection system is provided:

[0079] In a technical solution of a cold-source activated hot rod condition detection system, the system is used to execute the aforementioned cold-source activated hot rod condition detection method. The system includes: an end controller; a cold source connected to the end controller for localized cooling of the hot rod, the cold source being positioned at a cooling point; a temperature measuring device connected to the end controller for measuring the hot rod wall temperature data; and a communication device connected to the end controller for transmitting the temperature measuring data. The cold-source activated hot rod condition detection system provided in this application also possesses the beneficial effects of the aforementioned technical solutions.

[0080] According to a third embodiment of the present invention, a technical solution for an electronic device is provided:

[0081] In the technical solution of the electronic device, the electronic device includes: a computer program for executing the above-described method for detecting the state of a hot rod activated by a cold source; a memory for storing the computer program; and a processor for executing the computer program. The technical solution of the electronic device provided in this application also has the beneficial effects of the above-described technical solutions.

[0082] Example 1

[0083] A method for detecting the status of a heat pipe activated by a cold source includes the following steps: locally cooling the cooling point of the heat pipe; acquiring temperature measurement data from two or more temperature measurement points located below the cooling point of the heat pipe, wherein the temperature measurement points are arranged sequentially downwards; and analyzing the temperature measurement data to determine the working status of the heat pipe: if two or more temperature measurement data show a consistent change, the heat pipe is determined to be in normal working condition; if two or more temperature measurement data show a slow change and the temperature curves are arranged in a stepped pattern, the heat pipe is determined to be in abnormal working condition.

[0084] Example 2.1

[0085] Repeat Example 1, except that the change state of the lower temperature measurement data tends to be consistent. Specifically, after local cooling of the heat rod cooling point, the temperature measurement value of the lower temperature measurement data gradually decreases over time and the value tends to be consistent. The lower temperature measurement data changes slowly, and the temperature value curve is arranged in a stepped manner. Specifically, after local cooling of the heat rod cooling point, the cooling rate of multiple lower temperature measurement points is different, the temperature value curves of multiple lower temperature measurement data decrease one after another, and there is an interval between the temperature value curves of multiple lower temperature measurement data.

[0086] Example 2.2

[0087] Repeat Example 1, except that "the lower temperature measuring points are arranged downwards in sequence" specifically means that multiple lower temperature measuring points are arranged downwards from the side closer to the heat rod cooling point to the side farther away from the heat rod cooling point; preferably, the downward arrangement is arranged downwards at equal intervals; preferably, the downward arrangement is arranged vertically downwards.

[0088] Example 3.1

[0089] Repeat Example 1, except that it further includes the following steps: obtaining the upper temperature measurement data of the upper temperature measurement point above the cooling point of the heat pipe; combining the upper temperature measurement data and the lower temperature measurement data to analyze and determine the working state of the heat pipe: if the changes in the upper temperature measurement data and the lower temperature measurement data are the same or similar, then it is determined that the heat pipe is in an abnormal working state.

[0090] Example 3.2

[0091] Repeat Example 3.1, except that it further includes the following steps: combining the upper temperature measurement data with the lower temperature measurement data to obtain first lower optimized temperature measurement data; based on the first lower optimized temperature measurement data, obtain the working medium temperature data of the condensing working medium inside the heat pipe; based on the working medium temperature data and the characteristics of the working medium, analyze the current internal pressure value of the heat pipe, and if the internal pressure value is lower than a first pressure threshold, issue a heat pipe pressure abnormality alarm; wherein, the first pressure threshold is related to the characteristics of the working medium.

[0092] Example 3.3

[0093] Repeat Example 3.1, except that circumferential temperature measurement data of circumferential temperature measurement points at the same height as the cooling point of the heat pipe are obtained; the lower temperature measurement data is corrected and optimized by combining the upper temperature measurement data and the circumferential temperature measurement data to obtain second lower optimized temperature measurement data; the working medium temperature data of the condensing working medium inside the heat pipe is obtained based on the second lower optimized temperature measurement data; based on the working medium temperature data and the characteristics of the working medium, the current internal pressure value of the heat pipe is analyzed; if the internal pressure value is lower than a first pressure threshold, a heat pipe pressure abnormality alarm is issued; wherein, the first pressure threshold is related to the characteristics of the working medium.

[0094] Example 4.1

[0095] Repeat Example 1, except that the local cooling method includes the following steps: selecting a cooling point on the heat rod; placing a cold source on the heat rod so that the cold source cools the cooling point; the refrigeration principle of the cold source is one or more of semiconductor refrigeration, heat pump compressor refrigeration, and cold storage device refrigeration.

[0096] Example 4.2

[0097] Repeat Example 1, except that the method further includes: applying vibration to the wall of the hot rod, the frequency of which is related to the resonant frequency of the high-pressure working medium inside the hot rod.

[0098] Example 5

[0099] A cold-source activated heat pipe status detection system is provided, which is used to perform the above-described cold-source activated heat pipe status detection method. The system includes: an end controller; a cold source connected to the end controller for local cooling of the heat pipe, the cold source being disposed at a cooling point; a temperature measuring device connected to the end controller for measuring heat pipe wall temperature data; and a communication device connected to the end controller for transmitting the temperature measuring data.

[0100] Example 6

[0101] An electronic device comprising: a computer program for executing the above-described method for detecting the state of a hot rod activated by a cold source; a memory for storing the computer program; and a processor for executing the computer program.

[0102] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cold source activated heat stick status detection method, characterized in that, The method includes the following steps: Localized cooling of the heat pipe cooling points; Acquire temperature data from the temperature measurement points below the cooling point of the heat pipe, wherein there are two or more temperature measurement points below the cooling point, and the temperature measurement points are arranged sequentially downwards. The working status of the heat pipe can be determined by analyzing the temperature measurement data below: If two or more of the temperature measurement data below show a consistent trend, then the heat pipe is considered to be in normal working condition. If two or more of the temperature measurement data below change slowly and the temperature value curves are arranged in a stepped manner, then the heat pipe is judged to be in an abnormal working state. The consistent trend of the temperature measurement data below is specifically as follows: After local cooling of the heat pipe cooling point, the temperature measurement value of the temperature measurement data below gradually decreases over time and the value tends to be consistent. The temperature data below changes slowly, and the temperature value curve is arranged in a stepped pattern, specifically as follows: After local cooling of the heat pipe cooling point, the cooling rate of multiple lower temperature measuring points is different, and the temperature value curves of multiple lower temperature measuring data decrease one after another, with intervals between the temperature value curves of multiple lower temperature measuring data. The temperature curve is a temperature-time curve.

2. The method for detecting the state of a heat pipe activated by a cold source according to claim 1, characterized in that, The phrase "the temperature measuring points below are arranged sequentially downwards" specifically refers to: The multiple temperature measuring points below are arranged downwards from the side closest to the cooling point of the heat rod to the side furthest from the cooling point of the heat rod.

3. The method for detecting the state of a heat pipe activated by a cold source according to claim 2, characterized in that, The downward arrangement specifically refers to an equal-interval downward arrangement.

4. The method for detecting the state of a heat pipe activated by a cold source according to claim 3, characterized in that, The downward arrangement refers to a vertical downward arrangement.

5. The method for detecting the state of a heat pipe activated by a cold source according to claim 1, characterized in that, It also includes the following steps: Obtain the temperature measurement data at the upper temperature measurement point above the cooling point of the heat pipe; The working status of the heat pipe is determined by analyzing the temperature measurement data from the top and bottom: If the temperature data measured above and below show the same or similar changes, the heat pipe is determined to be in an abnormal working state.

6. The method for detecting the state of a heat pipe activated by a cold source according to claim 5, characterized in that, It also includes the following steps: Based on the above temperature measurement data, the below temperature measurement data is corrected and optimized to obtain the first optimized below temperature measurement data; Based on the first optimized temperature measurement data below, obtain the working medium temperature data of the condensing working medium inside the heat pipe; Based on the working medium temperature data and the characteristics of the working medium, the current internal pressure value of the heat pipe is analyzed. If the internal pressure value is lower than the first pressure threshold, an alarm for abnormal heat pipe pressure is issued. The first pressure threshold is related to the characteristics of the working medium.

7. The method for detecting the state of a heat pipe activated by a cold source according to claim 5, characterized in that, The method also includes: Obtain circumferential temperature measurement data from circumferential temperature measurement points at the same height as the cooling point of the heat pipe; By combining the above temperature measurement data and the circumferential temperature measurement data, the below temperature measurement data is corrected and optimized to obtain the second optimized below temperature measurement data; Based on the second optimized temperature measurement data below, obtain the working medium temperature data of the condensing working medium inside the heat pipe; Based on the working medium temperature data and the characteristics of the working medium, the current internal pressure value of the heat pipe is analyzed. If the internal pressure value is lower than the first pressure threshold, an alarm for abnormal heat pipe pressure is issued. The first pressure threshold is related to the characteristics of the working medium.

8. The method for detecting the state of a heat pipe activated by a cold source according to any one of claims 1 to 7, characterized in that, The local cooling method includes the following steps: Select the cooling point on the heat pipe; The cold source is placed on the heat pipe so that the cold source cools the cooling point; The cooling principle of the cold source is one of semiconductor refrigeration, heat pump compressor refrigeration, or cold storage device refrigeration.

9. The method for detecting the state of a heat pipe activated by a cold source according to any one of claims 1 to 7, characterized in that, The method also includes: Vibration is applied to the wall of the heat pipe, and the frequency of the vibration is related to the resonant frequency of the high-pressure working medium inside the heat pipe. By applying vibration to the wall of the heating rod, the gas in the high-pressure working medium inside the heating rod is accelerated to condense after the vibration is transmitted into the heating rod, thus speeding up the formation of droplets and improving the detection efficiency.

10. A heat pipe status detection system activated by a cold source, characterized in that, This system is used to perform the method for detecting the status of a heat pipe activated by a cold source as described in any one of claims 1 to 9; the system comprises: End controller; A cold source connected to the terminal controller signal is used for local cooling of the heat rod, and the cold source is used to be placed at the cooling point; A temperature measuring device connected to the terminal controller signal for measuring the temperature data of the hot rod wall; A communication device connected to the terminal controller for transmitting temperature measurement data.

11. An electronic device, characterized in that, include: A computer program, the computer program being used to execute the method for detecting the state of a heat rod activated by a cold source as described in any one of claims 1 to 9; A memory for storing the computer program; A processor for executing the computer program.

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