Device for measuring transportation performance of working medium in porous material

Abstract

The utility model discloses a device for measuring the transport performance of a working medium in a porous material, which comprises a weighing device, a to-be-measured sample fixing device and a data acquisition module, the weighing device is used for monitoring the mass change of the working medium in the porous material in real time, and has a real-time response function; the weighing device can accurately measure and record the mass value of the working medium in the porous material at the current moment, the to-be-measured sample fixing device is used for fixing and adjusting the distance between a to-be-measured sample and the weighing device, and the data acquisition module is used for acquiring the mass data of the working medium in the porous material in real time and has the function of communicating with the weighing device. According to the device and the method, data measured by the weighing device can be received in real time, and high-precision porous material flowing property testing is realized under the conditions of lower cost and lower measurement precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of measuring porous material, specifically to a kind of porous material internal working medium transport performance measuring device. BACKGROUND

[0002] With the continuous development of electronic components and equipment and its performance continues to improve, the heat flow density in use process is improved, and the overheating problem caused by the overheating problem is more and more prominent, and the demand for heat dissipation is increasing. As a kind of widely used heat dissipation component, the performance limit of heat pipe is affected by many conditions, one of which is capillary limit, and the capillary limit is affected by the flow performance of capillary structure in heat pipe. The existing mainstream method for testing the flow performance of capillary structure is to use high-speed camera or infrared camera to shoot the height of capillary structure during liquid absorption process. This method requires high equipment, complex data extraction and error, and cannot realize nondestructive measurement for circular heat pipe. Therefore, we propose a kind of porous material internal working medium transport performance measuring device. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a kind of porous material internal working medium transport performance measuring device to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of porous material internal working medium transport performance measuring device, including weighing device, sample to be measured fixed device and data acquisition module, the weighing device is used to monitor the mass change of working medium in porous material in real time, has real-time response function, can accurately measure and record the mass value of working medium in porous material at current time, the sample to be measured fixed device is used to fix and adjust the distance between sample to be measured and weighing device, the data acquisition module is used to acquire the mass data of working medium in porous material in real time, has the function of communicating with weighing device, can receive the data measured by weighing device in real time.

[0005] Preferably, the weighing device includes a communication port, which is used to connect the weighing device and the data acquisition module and transmit data.

[0006] Preferably, the weighing device is a mechanical property measuring device composed of a pressure sensor.

[0007] Preferably, the weighing device is an analytical balance.

[0008] Preferably, the data acquisition module is a data acquisition computer.

[0009] Preferably, the sample to be measured fixed device includes an iron stand and a lifting platform, and the lifting platform is used to adjust the height of the sample.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] The utility model discloses realized the high-precision porous material flow performance test under lower cost and lower measurement accuracy, can realize the curve of accurate liquid absorption mass change with time after the measurement end, simplifies the porous material flow performance test process, and improves the test efficiency of porous material flow performance, can realize the accurate and nondestructive flow performance test to the internal porous material of various different shapes of closed devices. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The utility model uses the whole structure schematic diagram.

[0013] In the drawing: 1, weighing device, 2, the sample fixed device of measuring, 3, data acquisition module. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0015] Please refer to Figure 1 The utility model provides a technical scheme: for the cumbersome, complex and poor commonality of the existing porous material internal working medium transport performance test method and other shortcomings. The application designs a kind of porous material internal working medium transport performance measuring device and method, can realize low cost and efficiently carry out porous material internal working medium transport performance flow performance test and nondestructive test to heat pipe and other closed devices.

[0016] To realize the above-mentioned purpose, the application adopts the following technical scheme:

[0017] The working medium transport performance measuring device in the porous material in the application is composed of weighing device 1, sample fixed device 2 and data acquisition module 3, and the mass change of working medium in porous material is monitored in real time to reflect the working medium transport performance in porous material.

[0018] The weighing device 1 is one of the core components of the present application, which is a device for real-time monitoring of the mass change of the working medium in the porous material, has a real-time response function, and can accurately measure and record the mass value of the working medium in the porous material at the current time. In addition, the weighing device 1 also needs to be equipped with a communication port connected with the data acquisition module 3, and the mass data of the working medium in the porous material obtained is transmitted to the data acquisition computer in real time. The weighing device 1 includes but is not limited to a mass measuring device such as a balance or a scale, and a mechanical property measuring device such as a pressure sensor, preferably a balance, and most preferably an analytical balance.

[0019] The sample fixing device 2 in the present application is a device for fixing and adjusting the distance between the sample to be tested and the weighing device 1, which can accurately control the level during the process of adjusting the distance between the sample to be tested and the weighing device 1, and needs to accurately control the height change during the process of adjusting the distance between the sample to be tested and the weighing device 1. The sample fixing device 2 can be composed of one or more devices, preferably a combination device of a lifting platform and an iron stand.

[0020] The data acquisition module 3 in the present application is a module for real-time acquisition of the mass of the working medium in the porous material, which has the function of communicating with the weighing device 1 and can receive the data measured by the weighing device 1 in real time. When recording data, the test time and the mass data at the corresponding time are matched, and the matched time and mass data are saved together.

[0021] As a preferred embodiment, the data acquisition module 3 includes but is not limited to a data acquisition computer and a data acquisition single-chip microcomputer, and is preferably a data acquisition computer.

[0022] The specific process of the test method for the transport performance of the working medium in the porous material is as follows:

[0023] First step: connect the weighing device 1 with the data acquisition module 3; measure the mass of the sample to be tested before testing.

[0024] Second step: run the program in the data acquisition computer, set the measurement time, and then start using the weighing device 1 to real-time monitor the mass change of the working medium in the porous material, and use the data acquisition device to real-time acquire and save the mass data of the working medium in the porous material.

[0025] Third step: measure the mass of the sample after the test is completed. The actual mass of the working medium absorbed by the sample to be tested during the test is the difference between the mass before and after the test.

[0026] Fourth step: by analyzing and processing the stored data, several key parameters in the flow performance of the porous material are obtained, and are brought into the theoretical model of the working medium flow in the porous material, and the theoretically obtained mass change curve of the working medium in the porous material is obtained.

[0027] It should be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0028] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the transport performance of working fluid within porous materials, characterized in that, The device includes a weighing device (1), a sample fixing device (2), and a data acquisition module (3). The weighing device (1) is used to monitor the mass change of the working fluid in the porous material in real time, has a real-time response function, and can accurately measure and record the mass value of the working fluid in the porous material at the current moment. The sample fixing device (2) is used to fix and adjust the distance between the sample and the weighing device (1). The data acquisition module (3) is used to collect the mass data of the working fluid in the porous material in real time, has the function of communicating with the weighing device (1), and can receive the data measured by the weighing device (1) in real time.

2. The device for measuring the transport performance of working fluid in porous materials according to claim 1, characterized in that: The weighing device (1) includes a communication port, which is used to connect the weighing device (1) to the data acquisition module (3) and transmit data.

3. The device for measuring the transport performance of working fluid in porous materials according to claim 1, characterized in that: The weighing device (1) is a mechanical property measuring device composed of pressure sensors.

4. The device for measuring the transport performance of working fluid in porous materials according to claim 1, characterized in that: The weighing device (1) is an analytical balance.

5. The device for measuring the transport performance of working fluid in porous materials according to claim 1, characterized in that: The data acquisition module (3) is a data acquisition computer.

6. The device for measuring the transport performance of working fluid in porous materials according to claim 1, characterized in that: The sample fixing device (2) includes an iron frame and a lifting platform, the lifting platform being used to adjust the height of the sample.

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