Temperature monitoring device for tall tower

Abstract

The utility model discloses a temperature monitoring device for a tall tower, which relates to the structure monitoring technology, and comprises a tall tower and an external measuring assembly, and the external measuring assembly comprises an external contact type temperature sensor, an internal contact type temperature sensor, a wind speed sensor and a non-contact type temperature sensor. The external measurement assembly comprises an external contact type temperature sensor, an internal contact type temperature sensor, a wind speed sensor and a non-contact type temperature sensor, the temperature distribution condition of the tower can be obtained in real time through the external measurement assembly, temperature stress calculation is conducted through the cloud system, the health condition of the tower can be monitored in real time, and the system is simple in structure and convenient to use. According to the utility model, the strain gauges are arranged, and strain gauge data can be compared with a structure field in a cloud simulation system for correcting stress field data of the cloud simulation system, so that the data accuracy is higher, and the simulation is more real.

Description

Technical Field

[0001] This utility model relates to structural monitoring technology, specifically a temperature monitoring device for tall towers. Background Technology

[0002] When a building is tall, the cumulative effect during construction results in a large difference in deformation between vertical components caused by temperature. In this case, the temperature effect of the structure must be considered. In the design and operation of tall towers, considering the temperature effect is crucial for the safety and stability of the tower structure.

[0003] Currently, there are no good temperature monitoring devices for tall buildings such as towers in China. This makes it impossible to monitor the temperature in real time and detect structural temperature anomalies in a timely manner, and to maintain the structural temperature within a safe range by adjusting cooling equipment and ventilation systems. Consequently, it is impossible to monitor the health status of tall buildings in real time. Utility Model Content

[0004] The purpose of this invention is to provide a temperature monitoring device for tall towers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A temperature monitoring device for a tall tower includes a tall tower and an external measuring component. The external measuring component includes an external contact temperature sensor, an internal contact temperature sensor, a wind speed sensor, and a non-contact temperature sensor. Both the external and internal contact temperature sensors are provided in two sets, each set including two temperature sensors. Each set of external contact temperature sensors is installed on the outer wall of the tall tower in a horizontally relative position, and each set of internal contact temperature sensors is installed on the inner wall of the tall tower in a horizontally relative position. The two sets of external contact temperature sensors are installed at different heights on the tall tower, with a horizontal angle of 90° between them. The two sets of internal contact temperature sensors are also installed at different heights on the tall tower, with a horizontal angle of 90° between them. A mounting frame is installed on the tall tower, and the non-contact temperature sensor and the wind speed sensor are mounted on the mounting frame.

[0007] As a further aspect of this utility model: the sampling frequency of the external contact temperature sensor, the internal contact temperature sensor, the non-contact temperature sensor, and the wind speed sensor is all 15-30Hz.

[0008] As a further improvement of this utility model: eight sets of crossbeams are installed inside the tower from top to bottom, and each set of crossbeams is in rigid contact with the inner wall of the tower.

[0009] As a further improvement of this utility model, two strain gauges are arranged in each group of crossbeams.

[0010] As a further improvement of this invention, the wind speed sensor is positioned at a height of 3-5m.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention utilizes an external measurement component, which includes an external contact temperature sensor, an internal contact temperature sensor, a wind speed sensor, and a non-contact temperature sensor. This external measurement component allows for real-time acquisition of the temperature distribution of the tower. By employing an existing cloud simulation system, temperature stress calculations can be performed, enabling real-time monitoring of the tower's health status.

[0013] This invention uses strain gauges to compare strain gauge data with the structural field in a cloud simulation system, thereby correcting the stress field data in the cloud simulation system, resulting in higher data accuracy and more realistic simulation.

[0014] Based on cloud simulation results, this invention can achieve intelligent temperature control and monitoring, promptly detect structural temperature anomalies, and maintain the structural temperature within a safe range by adjusting cooling equipment, ventilation systems, etc. Attached Figure Description

[0015] Figure 1 This is a top sectional view of the present invention.

[0016] Figure 2 This is the front view of the present invention.

[0017] Figure 3 This is a simplified structural diagram of the tower of this utility model.

[0018] Figure 4 This is a flowchart of the simulation system of this utility model.

[0019] Figure 5 This is a simulation diagram of the temperature effect simulation system for tall towers according to this utility model.

[0020] 1. Tall tower; 2. External contact temperature sensor; 3. Internal contact temperature sensor; 4. Crossbeam; 5. Strain gauge; 6. Mounting frame; 7. Wind speed sensor; 8. Non-contact temperature sensor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 In this embodiment of the present invention, a temperature monitoring device for a tall tower includes a tall tower 1 and an external measuring component. The external measuring component includes an external contact temperature sensor 2, an internal contact temperature sensor 3, a wind speed sensor 7, and a non-contact temperature sensor 8. Both the external contact temperature sensor 2 and the internal contact temperature sensor 3 are provided in two sets, each set including two temperature sensors. Each set of external contact temperature sensors 2 is installed on the outer wall of the tall tower 1 in a horizontally relative position, and each set of internal contact temperature sensors 3 is installed on the inner wall of the tall tower 1 in a horizontally relative position. The two sets of external contact temperature sensors 2... Two sets of external contact temperature sensors 2 are installed at different heights on the tower 1, with a horizontal angle of 90° between them. Two sets of internal contact temperature sensors 3 are also installed at different heights on the tower 1, with a horizontal angle of 90° between them. A fixed frame 6 is installed on the tower 1, and a non-contact temperature sensor 8 and a wind speed sensor 7 are installed on the fixed frame 6. After the tower 1 is exposed to sunlight, there is a certain temperature difference between the irradiated area and the non-irradiated area. In order to make the input data more accurate, each set of external contact temperature sensors 2 is set horizontally opposite to each other on the outer wall of the tower 1.

[0023] The tower is 30m high. Inside the tower 1, there are eight sets of crossbeams 4 installed from top to bottom. Each set of crossbeams 4 is in rigid contact with the inner wall of the tower 1. The crossbeams 4 and the tower 1 are constrained by the nearest node having the same temperature. In order to calibrate the stress data, two strain gauges 5 are arranged in each set of crossbeams 4. The data of strain gauges 5 are compared with the structural field in the cloud simulation system to correct the stress field data of the cloud simulation system.

[0024] Please see Figure 4-5 The working principle of this utility model is as follows: the external measuring component transmits the real-time temperature data of the inner and outer walls of the tower 1, as well as the air temperature and wind speed data, to the existing cloud simulation system. The cloud simulation system generates temperature distribution cloud maps and stress distribution cloud maps, and then the back-end personnel view the data and deal with the danger as soon as possible.

[0025] In this embodiment, the external measurement component is connected to the existing cloud simulation system. The cloud simulation system is based on the finite element method, and the finite element model is processed from the actual model. The finite element model remains unchanged for each calculation. The boundary conditions of the temperature field simulation system use temperature sensor data collection, and the temperature boundary is converted into the second type of boundary conditions in the temperature field. In this embodiment, based on the influence of wind load on the temperature field distribution of the tall tower 1 and the relationship between floor height and wind speed, the wind speed is calculated. The wind load is equivalent to the second type of boundary condition, and the wind speed sensor 7 is arranged at a height of 3-5m.

[0026] In the cloud simulation system, the structural field coupling analysis uses the temperature load from the aforementioned embodiment. Considering the high specific gravity of concrete, gravitational acceleration should be used in the load. In this embodiment, the existing cloud simulation system is based on the Ansys kernel for calculation. To improve the computational efficiency of the cloud simulation system, the model is simplified to some extent. The crossbeam uses Link33 unit chips, the tower 1 structure uses Solid278 unit chips, and the support frame uses Shell131 unit chips. The lateral support structure is ignored. The sampling frequencies of the external contact temperature sensor 2, internal contact temperature sensor 3, non-contact temperature sensor 8, and wind speed sensor 7 are all 15-30Hz. Adjusting the sensor sampling frequency to this value can improve sampling accuracy and monitoring accuracy. To ensure uninterrupted operation of the sensors, all of the above sensors are powered by external solar panels, and their output voltage can be adjusted according to the power supply of the sensors.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A temperature monitoring device for a high-rise tower, comprising a high-rise tower (1) and an external measuring assembly, characterized in that: The external measuring assembly comprises an external contact temperature sensor (2), an internal contact temperature sensor (3), a wind speed sensor (7) and a non-contact temperature sensor (8), the external contact temperature sensor (2) and the internal contact temperature sensor (3) are each provided with two groups, each group comprises two temperature sensors, each group of the external contact temperature sensor (2) is installed on the outer wall of the high tower (1) and horizontally opposite, each group of the internal contact temperature sensor (3) is installed on the inner wall of the high tower (1) and horizontally opposite, two groups of the external contact temperature sensor (2) are respectively installed at different height positions of the high tower (1) and the horizontal included angle between the two groups of external contact temperature sensors (2) is 90°, two groups of the internal contact temperature sensor (3) are respectively installed at different height positions of the high tower (1) and the horizontal included angle between the two groups of internal contact temperature sensors (3) is 90°, a fixed frame (6) is installed on the high tower (1), the non-contact temperature sensor (8) and the wind speed sensor (7) are installed on the fixed frame (6).

2. A temperature monitoring device for a tall tower according to claim 1, characterized in that: The sampling frequency of the external contact temperature sensor (2), the internal contact temperature sensor (3), the non-contact temperature sensor (8) and the wind speed sensor (7) is 15-30Hz.

3. A temperature monitoring device for a tall tower according to claim 1, characterized in that: Eight groups of cross beams (4) are installed inside the high tower (1) from top to bottom, each group of the cross beam (4) is in rigid contact with the inner wall of the high tower (1).

4. A temperature monitoring device for a tall tower according to claim 3, wherein: Two strain gauges (5) are arranged in each group of the cross beam (4).

5. A temperature monitoring device for a tall tower according to claim 1, characterized in that: The wind speed sensor (7) is arranged at a height of 3-5m.

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