Sunshine nonlinear temperature test system with stack box structure and test data processing method

Abstract

The invention discloses a stack box structure sunlight nonlinear temperature test system and a test data processing method, and belongs to the technical field of stack box aqueduct detection. The stack box structure sunlight nonlinear temperature test system comprises a variable cross-section stack box, the variable cross-section stack box is provided with a plurality of longitudinal sensing sections, and the sensing sections are provided with temperature sensing assemblies; the temperature sensing assembly is electrically connected with a signal transmission and acquisition device, and the signal transmission and acquisition device is electrically connected with a data terminal. The height sizes of the sensing sections are different, and the sensing sections comprise at least one single-box section and at least one stacked-box section; a U-shaped water passing groove is formed in the upper portion of the section of the stack box, a rectangular structural groove is formed in the lower portion of the section of the stack box, water is contained in the water passing groove, and air is contained in the structural groove. The temperature data of a plurality of sensing sections are integrated, and air detection equipment and environment monitoring equipment are matched to obtain geographical position changes, transportation fluid water level changes and heat preservation environment changes, so that an accurate section temperature field and core parameters of influence factors of the section temperature field are obtained.

Description

Technical Field

[0001] The invention relates to the technical field of stacked box aqueduct detection, and in particular to a stacked box structure sunshine nonlinear temperature test system and a test data processing method. Background Art

[0002] Outdoor structures, especially concrete structures, will present a nonlinear temperature field with different temperatures at different positions on their cross-sections due to the influence of solar radiation. This temperature field will have various temperature distributions depending on the different orientations of the structure and the different cross-sectional forms.

[0003] The stacked-box aqueduct structure is a structure in which two boxes are connected vertically. Water flows in the upper box cavity, and air that is difficult to circulate flows in the lower box cavity. The water level and flow rate in the upper box cavity often change. The existing test method for the solar temperature field of the concrete box girder structure only measures the temperature distribution of the stacked-box concrete structure. The thermal parameters of concrete and water are different. The solar temperature field of the aqueduct structure must take into account the influence of the water level on the solar temperature field when water flows. The systematicness and accuracy of the test need to be further improved.

[0004] In addition, the existing test method is only applicable to single-box single-chamber structures and cannot adapt to vertical stacked box structures, because the variable thickness of the middle partition of the vertical stacked box structure will have a very complex effect on the temperature distribution. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is: how to improve the systematicness and accuracy of the sunshine nonlinear temperature field test of the stacked box structure.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A stacked box structure sunshine nonlinear temperature test system comprises a variable cross-section stacked box, wherein the variable cross-section stacked box is provided with a plurality of longitudinal sensing sections, wherein the sensing sections are provided with temperature sensing components, wherein the temperature sensing components are electrically connected to a signal transmission and collection device, wherein the signal transmission and collection device is electrically connected to a data terminal; wherein the plurality of sensing sections have different heights, and wherein the plurality of sensing sections include at least one single box section and at least one stacked box section; wherein the stacked box section is provided with a U-shaped water trough at the upper portion and a rectangular structural trough at the lower portion, wherein the water trough contains water, and the structural trough contains air;

[0008] The temperature sensing component includes a plurality of mutually parallel temperature sensing elements which are evenly and spacedly arranged on the single box section or the stacked box section. The plurality of temperature sensing elements are arranged according to the contour of the single box section or the stacked box section. The larger the thickness of the single box section or the stacked box section, the more temperature sensing elements are arranged in the area. A water body detection device is arranged in the water flow channel of the single box section or the stacked box section, an air detection device is arranged in the structural groove, and an environmental monitoring device is arranged outside the sensing section. The plurality of temperature sensing elements, the water body detection device, the air detection device and the environmental monitoring device are all electrically connected to the signal transmission and collection device. The environmental monitoring device is used to detect the temperature, humidity, wind speed, wind direction, longitude and latitude coordinates and solar radiation intensity of the external environment.

[0009] Furthermore, the stacked box section includes two webs, a top plate, a middle partition plate and a bottom plate. The multiple temperature sensing elements of the webs are arranged in a vertical row and spaced apart in multiple rows horizontally; the multiple temperature sensing elements of the top plate, the multiple temperature sensing elements of the middle partition plate and the multiple temperature sensing elements of the bottom plate are spaced apart in multiple columns vertically.

[0010] Furthermore, among the multiple rows of temperature sensing elements spaced apart from each other on the web corresponding to the water trough positions, the number of the multiple temperature sensing elements in each row increases as the thickness of the web increases.

[0011] Furthermore, a heat-insulating layer is provided at the upper end of the bottom plate or the outer side wall of the web, and a temperature sensing element is provided at the connection between the heat-insulating layer and the upper end of the bottom plate or the outer side wall of the web.

[0012] Furthermore, the temperature sensing element includes a temperature sensor.

[0013] Furthermore, the water body detection equipment includes a water level monitor and a hydrological monitor, and the air detection equipment includes a thermometer and a flow rate sensor.

[0014] Furthermore, it also includes a power supply device, which is used to supply power to the signal transmission and collection device, and the power supply device includes a storage battery module and a solar power supply module.

[0015] A method for processing the test data of nonlinear temperature field of stacked box structure under sunlight is also proposed.

[0016] S1: Collecting and storing real-time detection data of the plurality of temperature sensing elements, the water body detection equipment, the air detection equipment and the environmental monitoring equipment as described in any one of claims 1 to 7;

[0017] S2: renaming all the collected and stored detection data in a standardized manner, and naming the original data using the compression technology and the file returned by the original sensor;

[0018] S3: All the above detection data that have been standardized and named are unified into the same time axis, so that all perception layer data can be checked at the same time point, and the same graph can be presented for the data of different time series related categories.

[0019] Furthermore, step S3 also includes presenting the time taken for different perception sections to reach the highest temperature in the temperature field in different time periods.

[0020] The beneficial effects of the present invention are:

[0021] (1) Through the setting of multiple temperature sensing elements, the nonlinear temperature change data of multiple sensing sections can be accurately detected, and the temperature data of multiple sensing sections can be integrated through the sum calculation and analysis of the data terminal to obtain the overall sunshine temperature field distribution of the stacked box aqueduct. In addition, the air detection equipment and environmental monitoring equipment can be used to obtain the changes in geographical location, the water level of the transported fluid (such as water delivery) and the insulation environment. Combined with the temperature distribution of the stacked box aqueduct, the core parameters of the accurate cross-sectional temperature field and its influencing factors can be obtained, providing scientific and powerful support for design, construction and maintenance.

[0022] (2) Multiple temperature sensing elements are arranged according to the contour of a single box section or a stacked box section, with more arranged in thicker positions and fewer arranged in narrower positions. This can meet the temperature field measurement requirements of the U-shaped water trough with variable thickness in the stacked box structure, ensuring that the accuracy of the temperature field data can be further improved in the temperature field test. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the box stacking section experimental system of the present invention;

[0024] Figure 2 It is a schematic diagram of a single box cross-section experimental system of the present invention;

[0025] Marked in the figure are, 1-belly plate, 2-top plate, 3-middle partition plate, 4-bottom plate, 5-temperature sensing element, 6-water trough, 7-water body, 8-structural trough, 9-water level monitor, 10-hydrological monitoring device, 11-air detection equipment, 12-environmental monitoring equipment, 13-signal transmission and collection equipment, 14-power supply equipment. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings.

[0027] according to Figure 1 , Figure 2As shown, an embodiment of the present application proposes a stacked box structure sunlight nonlinear temperature test system, including a variable-section stacked box, wherein the variable-section stacked box is provided with a plurality of longitudinal sensing sections, the sensing sections are provided with temperature sensing components, the temperature sensing components are electrically connected to a signal transmission and acquisition device 13, and the signal transmission and acquisition device 13 is electrically connected to a data terminal; the height dimensions of the plurality of sensing sections are different, and the plurality of sensing sections include at least one single box section and at least one stacked box section; the stacked box section is provided with a U-shaped water trough 6 at the upper part and a rectangular structural trough 8 at the lower part, the water trough 6 contains water 7, and the structural trough 8 contains air.

[0028] The temperature sensing component includes a plurality of mutually parallel temperature sensing elements 5 which are evenly and spacedly arranged on the single box section or the stacked box section. The plurality of temperature sensing elements 5 are arranged according to the contour of the single box section or the stacked box section. The larger the thickness of the single box section or the stacked box section, the more temperature sensing elements 5 are arranged in the area; a water body detection device is arranged in the water flow channel 6 of the single box section or the stacked box section, an air detection device 11 is arranged in the structural groove 8, and an environmental monitoring device 12 is arranged outside the sensing section. The plurality of temperature sensing elements 5, the water body detection device, the air detection device 11 and the environmental monitoring device 12 are all electrically connected to the signal transmission and collection device 13; the environmental monitoring device 12 is used to detect the temperature, humidity, wind speed, wind direction, longitude and latitude coordinates and solar radiation intensity of the external environment.

[0029] First of all, it should be stated that through the setting of multiple temperature sensing elements 5, the nonlinear temperature change data of multiple sensing sections can be accurately detected, and the temperature data of multiple sensing sections can be integrated through the sum calculation and analysis of the data terminal to obtain the overall sunshine temperature field distribution of the stacked box aqueduct. In addition, the air detection equipment 11 and the environmental monitoring equipment 12 are used to obtain changes in geographical location, changes in the water level of the transported fluid (such as water supply) and changes in the insulation environment, combined with the temperature distribution of the stacked box aqueduct, to obtain accurate cross-sectional temperature field and the core parameters of its influencing factors, providing scientific and powerful support for design, construction and maintenance.

[0030] The multiple sensing sections include a single-box section with only a water trough 6 and a stacked-box section with a water trough 6 and a structural trough 8. The multiple sensing sections are multiple transverse sections of the same steel structure aqueduct along the longitudinal direction, which can reflect the structural characteristics of different single boxes or stacked boxes. The temperature sensing element 5, water body detection equipment and air detection equipment 11 are set in the stacked-box section with a U-shaped water trough 6, which can comprehensively detect the cross-influence of various factors of changes in the concrete structure, cavity structure and water body 7 structure of the entire sensing section, forming a comprehensive test system.

[0031] The above-mentioned water body detection equipment includes the existing water level monitor 9 and the existing hydrological monitor 10. The hydrological monitor 10 is used to detect parameters such as flow velocity, flow rate and temperature of the water body 7. The above-mentioned air detection equipment 11 includes a thermometer and a flow velocity sensor. By integrating the external environmental parameters into the actual temperature field test data in real time, the systematicness and integrity of the sunshine temperature field test can be further improved.

[0032] The temperature sensing element 5, water detection equipment, air detection equipment 11, environmental monitoring equipment 12 and signal transmission and collection equipment 13 are all powered by a dual power supply system of solar energy and storage batteries to achieve long-term power supply and ensure the stability of test conditions over a long period of time.

[0033] Specifically, the plurality of temperature sensing units are arranged in a horizontally and vertically staggered mesh on the temperature sensing section. The plurality of temperature sensing units can independently detect the temperature of a designated detection area of ​​a single box section or a stacked box section. This cross-mesh arrangement can achieve precise detection.

[0034] Moreover, in order to reasonably distribute the temperature sensing units on the basis of ensuring the detection accuracy, the multiple temperature sensing elements 5 are arranged according to the contour of the single box section or the stacked box section. The specific arrangement method is: the stacked box section includes two webs 1, a top plate 2, a middle partition plate 3 and a bottom plate 4. The single box section is formed by the overlap of the middle partition plate 3 and the bottom plate 4. The multiple temperature sensing elements 5 of the web 1 are arranged in a vertical row and in multiple rows at intervals horizontally. The two webs 1 on both sides are respectively vertically arranged with two rows of multiple temperature sensing elements 5, which can detect the web section. The nonlinear change state of the temperature field in the vertical direction of the plate 1, a row of multiple temperature sensing elements 5 at the same height level can detect the distribution of the stable field of the web 1 at a certain height; the multiple temperature sensing elements 5 of the top plate 2, the multiple temperature sensing elements 5 of the middle partition plate 3 and the multiple temperature sensing elements 5 of the bottom plate 4 are arranged in multiple vertical columns at intervals. The arrangement of multiple columns of multiple temperature sensing elements 5 of the top plate 2, the middle partition plate 3 and the bottom plate 4 can ensure the distribution of the temperature field of the top plate 2, the middle partition plate 3 and the bottom plate 4 at different heights and in different thickness directions.

[0035] In the actual test process, due to the setting of the U-shaped water trough 6, there are large differences in the size changes of different parts of the web 1 and the middle partition 3. Therefore, in order to ensure the accuracy and comprehensiveness of temperature detection, the size of the position corresponding to the web 1 and the water trough 6 changes continuously in the vertical direction with the outline of the water trough 6, and among the multiple rows of temperature sensing elements 5 arranged at intervals at the position of the web 1 corresponding to the water trough 6, the number of multiple temperature sensing elements 5 in each row increases successively from top to bottom. The distribution of the temperature sensing elements 5 arranged based on the outline of the U-shaped water trough 6 can adapt to the sunshine temperature field test of the stacked box structure with the U-shaped water trough 6.

[0036] In actual experiments, an insulation layer is provided at the upper end of the bottom plate 4 or the outer wall of the web 1. In order to ensure the accuracy of temperature detection, a plurality of temperature sensing elements 5 are generally provided on the outside of the insulation layer, and the plurality of temperature sensing elements 5 provided on the outside of the insulation layer correspond to the row and column positions of the plurality of temperature sensing elements 5 provided on the bottom plate 4 or the web 1, thereby ensuring the uniformity of the temperature field detection results and being able to effectively analyze the temperature field state inside and outside the insulation layer at the corresponding position.

[0037] It should be noted that the temperature sensing element 5 can be a temperature sensor used in temperature field tests, which can transmit the sensed temperature to the signal transmission and acquisition device 13 in real time. Specifically, the signal transmission and acquisition device 13 generally adopts an existing test signal acquisition instrument, and the temperature sensor is electrically connected to the acquisition instrument through a wire. There are two methods for transmission. When there are many measurement parameters in the sensing section, a single sensing section parameter is independently transmitted to the acquisition instrument and then collected to the data terminal. When there are few measurement parameters in the sensing section, multiple sensing section parameters are collected over a short distance and then centrally transmitted to the acquisition instrument and then collected to the data terminal.

[0038] This embodiment also provides a method for processing test data of nonlinear temperature field of stacked box structure under sunlight, which includes the following steps:

[0039] S1: Collect and store the real-time detection data of the above-mentioned multiple temperature sensing elements 5, the water body detection equipment, the air detection equipment 11 and the environmental monitoring equipment 12.

[0040] S2: renaming all the collected and stored detection data in a standardized manner, and naming the original data using compression technology and the file transmitted back by the original sensor.

[0041] S3: All the above detection data with standardized names are unified into the same time axis, so that all perception layer data and non-inconsistent time series related category data can be viewed at the same time point in the same graph.

[0042] Specifically, relevant parameters are presented as needed, and the correlation of parameters is analyzed. Generally, the same perception section is selected to present the nonlinear temperature difference on the concrete structure to form a temperature field cloud map, which must include the vertical positive temperature difference temperature gradient of the top plate 2 along the web 1, the vertical negative temperature difference temperature gradient of the bottom plate 4 along the web 1, and the lateral temperature gradient distribution of the middle partition 3. At the same time, the difference in temperature gradient of the web 1 caused by different directions of the aqueduct must be presented; the nonlinear temperature field and fluid parameter consistency diagrams of the stacked box structure in the same sequence and different time sequences, as well as the time difference for the structure to rise to the highest temperature in the temperature field in different time periods can also be presented to reflect the time lag effect of the nonlinear temperature field. The time lag effect specifically refers to the time difference in reaching the highest temperature at a certain point in the perception section and the time difference in reaching the highest temperature at different perception sections. In order to form a complete analysis, the correlation analysis of the nonlinear temperature field of the stacked box structure with the water body parameters and external environmental parameters of the water crossing is performed to provide key parameters for temperature prediction.

[0043] In summary, the present invention proposes a sunshine nonlinear temperature test system for a stacked box structure and a test data processing method, which can adapt to various types of variable-section box girder structures, especially upper and lower stacked box variable-section box girder structures for which there is currently no measurement method. The test takes into account the different functions of the upper and lower boxes and the different characteristics of the fluid in the cavity. For the aqueduct structure, water is transported in the cavity of the upper box, and the water level, water temperature, and flow rate are the core measurement indicators. The cavity of the lower box is relatively stagnant air, and its air volume changes with the variable cross-section; the test method also takes into account the different temperature transfer effects brought about by the changes in the cross-section of the middle partition 3, and the timeliness of parameters such as the temperature, humidity, and solar radiation of the external environment; the test method unifies the above parameters into the same time series coordinate for data sorting and storage, and takes into account the time lag effect of the structure along its cross-section and longitudinal length, so as to achieve the systematic nature of the entire experiment, so as to obtain accurate core parameters of the cross-sectional temperature field and its influencing factors, and provide scientific and powerful support for design, construction, and maintenance.

Claims

1. The stacked box structure sunshine nonlinear temperature test system is characterized by: The invention comprises a variable cross-section stacking box, wherein the variable cross-section stacking box is provided with a plurality of longitudinal sensing sections, wherein the sensing sections are provided with temperature sensing components, wherein the temperature sensing components are electrically connected to a signal transmission and collection device (13), and wherein the signal transmission and collection device (13) is electrically connected to a data terminal; wherein the plurality of sensing sections have different heights, and wherein the plurality of sensing sections include at least one single box section and at least one stacking box section; wherein the stacking box section is provided with a U-shaped water trough (6) at the upper part and a rectangular structural trough (8) at the lower part, wherein the water trough (6) contains water (7), and wherein the structural trough (8) contains air; The temperature sensing component comprises a plurality of mutually parallel temperature sensing elements (5) uniformly and spaced apart on the single box section or the stacked box section. The plurality of temperature sensing elements (5) are arranged according to the contour of the single box section or the stacked box section. The greater the thickness of the single box section or the stacked box section, the greater the number of temperature sensing elements (5) arranged. The water flow groove (6) of the single box section or the stacked box section is provided with a water body detection device, the structure groove (8) is provided with an air detection device (11), and the periphery of the sensing section is provided with an environmental monitoring device (12). The plurality of temperature sensing elements (5), the water body detection device, the air detection device (11) and the environmental monitoring device (12) are all electrically connected to the signal transmission and collection device (13). The environmental monitoring device (12) is used to detect the temperature, humidity, wind speed, wind direction, longitude and latitude coordinates and solar radiation intensity of the external environment.

2. The stacked box structure sunshine nonlinear temperature test system according to claim 1 is characterized in that: The stacked box section comprises two webs (1), a top plate (2), a middle partition plate (3) and a bottom plate (4); the plurality of temperature sensing elements (5) of the webs (1) are arranged in a vertical row and are spaced apart in multiple rows in the horizontal direction; the plurality of temperature sensing elements (5) of the top plate (2), the plurality of temperature sensing elements (5) of the middle partition plate (3) and the plurality of temperature sensing elements (5) of the bottom plate (4) are spaced apart in multiple rows in the vertical direction.

3. The stacked box structure sunshine nonlinear temperature test system according to claim 2 is characterized in that: Among the multiple rows of temperature sensing elements (5) arranged at intervals on the web (1) corresponding to the positions of the water troughs (6), the number of the multiple temperature sensing elements (5) in each row increases as the thickness of the web increases.

4. The stacked box structure sunshine nonlinear temperature test system according to claim 1 is characterized in that: A heat-insulating layer is provided at the upper end of the bottom plate (4) or the outer side wall of the web (1), and a temperature sensing element (5) is provided at the connection between the heat-insulating layer and the upper end of the bottom plate (4) or the outer side wall of the web (1).

5. The stacked box structure sunshine nonlinear temperature test system according to any one of claims 1 to 4, characterized in that: The temperature sensing element (5) comprises a temperature sensor.

6. The stacked box structure sunshine nonlinear temperature test system according to claim 1 is characterized in that: The water body detection equipment includes a water level monitor (9) and a hydrological monitor (10), and the air detection equipment (11) includes a thermometer and a flow rate sensor.

7. The stacked box structure sunshine nonlinear temperature test system according to claim 1 is characterized in that: It also includes a power supply device (14), which is used to supply power to the signal transmission and collection device (13), and the power supply device (14) includes an energy storage battery module and a solar power supply module.

8. A method for processing test data of nonlinear temperature field of stacked box structure under sunlight, characterized in that: The method is used to process the test data collected in the stacked box structure sunshine nonlinear temperature test system as claimed in any one of claims 1 to 7, comprising the following steps: S1: collecting and storing real-time detection data of the plurality of temperature sensing elements (5), the water body detection equipment, the air detection equipment (11) and the environmental monitoring equipment (12); S2: renaming all the collected and stored detection data in a standardized manner, and naming the original data using the compression technology and the file sent back by the original sensor; S3: All the above detection data that have been standardized and named are unified into the same time axis, so that all perception layer data can be checked at the same time point, and the same graph can be presented for the data of different time series related categories.

9. The method for processing test data of the nonlinear temperature field of the stacked box structure under sunlight according to claim 8 is characterized in that: Step S3 also includes presenting the time taken for different sensing sections to reach the highest temperature in the temperature field of different time periods.

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