A real-time temperature monitoring system for frozen soil in cold-region building foundations

Abstract

This utility model discloses a real-time temperature monitoring system for frozen soil foundations in cold regions, comprising a power supply, a data center, monitoring devices, and a cloud platform. The power supply provides power to the data center, monitoring devices, and cloud platform. The monitoring devices, located underground, monitor soil temperature. The data center receives and aggregates monitoring data from multiple monitoring devices via wired data transmission. The data center also transmits data to the cloud platform via wired or wireless means. The utility model utilizes a PE flexible hose with finely crushed filler material, which effectively adapts to volume changes in frozen soil environments without requiring specific filler material between the PE hose and the holes. This simplifies construction procedures. Furthermore, the monitoring device can be prefabricated in a factory according to the conditions of the frozen soil foundation, thus improving construction efficiency. The elimination of the need for specific filler material between the PE hose and the holes also facilitates the subsequent removal of the entire monitoring device.

Description

Technical Field

[0001] This utility model relates to a real-time temperature monitoring system, and more particularly to a real-time temperature monitoring system for frozen soil foundations of buildings in cold regions. Background Technology

[0002] Real-time temperature monitoring of frozen soil foundations for cold-region buildings is essential to ensure structural safety, prevent permafrost disasters, and provide a basis for subsequent foundation design, reducing the cost waste caused by excessive protection. Chinese utility model patent application number 202320627083.1 provides a ground temperature monitoring device for airports in high-altitude and cold regions. This device "effectively solves the problem of temperature probe damage under long-term freeze-thaw conditions through a unique arrangement of a heat-fusion pipe, PE hose, and flexible steel wire rope, effectively protecting the temperature probe." However, it has several shortcomings: First, the space between the borehole and the heat-fusion pipe needs to be filled with a first filler, and a third filler is used in the borehole located below the permafrost layer. The filling of these different types of fillers must be done on-site and cannot be prefabricated, thus reducing construction efficiency. Second, the use of these fillers makes it difficult to replace or repair the temperature probe and counterweights during disassembly or maintenance, causing inconvenience. Third, the device's cable lacks protection, making it unsuitable for real-time monitoring of frozen soil foundations and posing a safety hazard. Utility Model Content

[0003] The purpose of this invention is to provide a real-time temperature monitoring system for frozen soil foundations in cold regions, in order to solve the aforementioned technical problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A real-time temperature monitoring system for frozen soil foundations in cold regions includes a power supply, a data center, monitoring devices, and a cloud platform. The power supply provides power to the data center, monitoring devices, and cloud platform. The monitoring devices, located underground, monitor soil temperature. The data center receives and aggregates monitoring data from multiple monitoring devices via wired data transmission. The data center also transmits data to the cloud platform via wired or wireless means. Each monitoring device includes a heat-fusion pipe, a PE hose, a sealing element, a temperature sensor assembly, and filler material. The heat-fusion pipe is interlocked within the PE hose, with the extension direction of the heat-fusion pipe and the PE hose being the same. Both ends of the heat-fusion pipe and the PE hose are sealed by the sealing element. The gap between the heat-fusion pipe and the PE hose is filled with fine filler material. A temperature sensor assembly is installed inside the heat-fusion pipe, arranged along the extension direction of the heat-fusion pipe and transmitting data via wired means. The temperature sensor assembly also transmits power via wired means to the power supply.

[0005] Based on the above technical solution, the sealing component includes a lower plug, an upper plug, and a limiting ring. The lower plug is fastened to the bottom of the hot melt pipe and is interference-fitted into the bottom of the PE hose. The upper plug is installed on the upper part of the hot melt pipe and interference-fitted into the upper part of the PE hose. The outer walls of the lower plug and the upper plug are respectively provided with circumferential limiting rings, and the limiting rings are sealed and fitted to the PE hose.

[0006] Based on the above technical solution, the hot melt pipe and the PE hose are radially penetrated by a through hole, and an inner conduit is tightly fitted inside the through hole. One end of the inner conduit extends into the interior of the hot melt pipe, and the other end extends to the outside. The inner conduit is radially penetrated by a perforation, and the inner conduit is connected to the outer conduit to the data center. The cable for transmitting data and power of the temperature sensor assembly is connected to the data center and the power supply through the perforation, the inner conduit, and the outer conduit.

[0007] Based on the above technical solution, the end of the inner conduit abuts against and fits against the inner wall of the hot-melt tube, and the outer wall is provided with a slot. The extension direction of the slot is the same as the extension direction of the hot-melt tube. A vertical socket is inserted into the hot-melt tube along the extension direction of the hot-melt tube. The socket runs through the tube from top to bottom. The socket is inserted into the slot to prevent the inner conduit from detaching from the hot-melt tube and the PE hose. A sleeve is hot-melted and fixed to the outside of the inner conduit. The sleeve is integrally formed with a protective plate. The protective plate fits against the outer wall of the PE hose.

[0008] Based on the above technical solution, the lower plug has a lower insertion hole, and the upper plug has an upper insertion hole. The lower insertion hole is a regular hexagonal prism, and the upper insertion hole is cylindrical. The upper insertion hole, through hole, and lower insertion hole are coaxially arranged. The diameter of the virtual circumcircle of the lower insertion hole is smaller than the diameter of the through hole. The upper insertion hole, through hole, and lower insertion hole are all connected to a support rod. The support rod has a radially penetrating receiving groove. The receiving groove corresponds to and communicates with the through hole. The bottom of the support rod matches the lower insertion hole. The temperature sensor assembly includes multiple temperature sensors. The multiple temperature sensors are arranged sequentially from top to bottom along the receiving groove and are located in the receiving groove. The temperature sensors are fastened to the receiving groove. The cables for information transmission and power transmission of the temperature sensors are connected to the data center and power supply through the receiving groove, through hole, inner conduit, and outer conduit. The cables for information transmission and power transmission of the temperature sensors are always in a slack state.

[0009] Based on the above technical solution, the filler is fine sand, and the space between the temperature sensor assembly and the hot melt tube is also filled with filler.

[0010] Compared with the prior art, the present invention has the following advantages: The PE hose of the present invention, supplemented with fine filler, can adapt well to the volume changes in the frozen soil environment, and the feature of not needing to fill the gap between the PE hose and the hole can simplify the construction steps. In addition, the monitoring device can be prefabricated in the factory according to the condition of the frozen soil foundation, thus improving the construction efficiency. The feature of not needing to fill the gap between the PE hose and the hole also makes it easier to remove the monitoring device as a whole for inspection or replacement, making it more convenient to use. By installing internal and external conduits, the cables of the temperature sensor assembly can be protected, separating the cables from the frozen soil and reducing safety hazards. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the system of this utility model.

[0012] Figure 2 This is a schematic diagram of the isometric structure of the monitoring device of this utility model.

[0013] Figure 3 This is a front cross-sectional view of the monitoring device of this utility model.

[0014] Figure 4 This is a schematic diagram showing the assembly of the upper plug, support rod, and lower plug of this utility model.

[0015] In the diagram: 1. Power supply, 2. Data center, 3. Monitoring device, 4. Cloud platform, 5. Hot melt pipe, 6. PE hose, 9. Lower plug, 10. Upper plug, 11. Limiting ring, 12. Through hole, 13. Inner conduit, 14. Perforation, 15. Outer conduit, 16. Slot, 17. Socket, 18. Sleeve, 19. Protective plate, 20. Lower insertion hole, 21. Upper insertion hole, 22. Support rod, 23. Receiving groove, 24. Temperature sensor, 25. Cable, 26. Filler. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] like Figures 1-4As shown, a real-time temperature monitoring system for frozen soil foundations in cold regions includes a power supply 1, a data center 2, monitoring devices 3, and a cloud platform 4. The power supply 1 provides power to the data center 2, monitoring devices 3, and cloud platform 4. The monitoring devices 3, located underground, monitor soil temperature. The data center 2 receives and aggregates monitoring data from multiple monitoring devices 3 via wired data transmission. The data center 2 also transmits data to the cloud platform 4 via wired or wireless means. The monitoring devices 3 include a heat-fusion pipe 5, a PE hose 6, a sealing component, and a temperature sensor. The heat-melting tube 5 is interposed in the PE hose 6 with gaps. The extension direction of the heat-melting tube 5 is the same as that of the PE hose 6. Both ends of the heat-melting tube 5 and the PE hose 6 are sealed by sealing components. The gap between the heat-melting tube 5 and the PE hose 6 is filled with fine filler material 26. A temperature sensor assembly is installed inside the heat-melting tube 5. The temperature sensor assembly is arranged along the extension direction of the heat-melting tube 5 and transmits information via wired connection to the data center 2. The temperature sensor assembly transmits power via wired connection to the power supply 1.

[0018] In use, holes are drilled in the frozen soil of the foundation. Then, a PE hose 6 with the same diameter as the hole is lowered into the hole. The signal transmission cable 25 and power transmission cable 25 of the temperature sensor assembly are connected to the data center 2 and the power supply 1. Then, the top of the monitoring device 3 is covered or buried, and real-time temperature monitoring can be performed. Since the PE hose 6 is sealed by the sealing component, the humidity environment inside the PE hose 6 can be kept stable. The PE hose 6, supplemented with fine filler 26, can adapt well to the volume changes in the frozen soil environment. The feature that there is no need to fill the gap between the PE hose 6 and the hole with a specific filler 26 simplifies the construction steps. Moreover, the monitoring device 3 can be prefabricated in the factory according to the condition of the frozen soil foundation, thus improving the construction efficiency. The feature that there is no need to fill the gap between the PE hose 6 and the hole with a specific filler 26 also makes it easy to remove the monitoring device 3 as a whole for inspection or replacement, making it more convenient to use.

[0019] The sealing component includes a lower plug 9, an upper plug 10, and a limiting ring 11. The lower plug 9 is fastened to the bottom of the heat fusion tube 5, for example, by bolting through and fastening, heat fusion, bonding, or threaded connection. The lower plug 9 is interference-fitted into the bottom of the PE hose 6. The upper plug 10 is installed on the upper part of the heat fusion tube 5 and interference-fitted into the upper part of the PE hose 6. The outer walls of the lower plug 9 and the upper plug 10 are respectively provided with circumferential limiting rings 11, and the limiting rings 11 are sealed and fitted to the PE hose 6.

[0020] Furthermore, during prefabrication, the ambient temperature is significantly higher than that of the frozen soil environment. This facilitates the interference fit between the PE hose 6 and the upper plug 10 and lower plug 9 to achieve a sealed fit between the limiting ring 11 and the PE hose 6. When placed in a frozen soil environment, the PE hose 6 shrinks due to thermal expansion and contraction, thus fitting more tightly with the limiting ring 11 and ensuring a sealing effect.

[0021] The hot melt tube 5 and the PE hose 6 are radially penetrated by a through hole 12. An inner conduit 13 is tightly fitted inside the through hole 12. One end of the inner conduit 13 extends into the interior of the hot melt tube 5, and the other end extends to the outside. The inner conduit 13 is radially penetrated by a through hole 14. The inner conduit 13 is connected to the outer conduit 15 to the data center 2. The cable 25 for transmitting data and power of the temperature sensor assembly is connected to the data center 2 and the power supply 1 through the through hole 14, the inner conduit 13, and the outer conduit 15.

[0022] Furthermore, by setting the inner conduit 13 and the outer conduit 15, the cable 25 of the temperature sensor assembly can be protected, thus separating the cable 25 from the frozen soil and reducing safety hazards.

[0023] The end of the inner conduit 13 abuts against the inner wall of the hot melt tube 5, and the outer wall is provided with a slot 16. The extension direction of the slot 16 is the same as the extension direction of the hot melt tube 5. A vertical socket 17 is inserted into the hot melt tube 5 along the extension direction of the hot melt tube 5. The socket 17 runs through the tube from top to bottom. The socket 17 is inserted into the slot 16 to prevent the inner conduit 13 from separating from the hot melt tube 5 and the PE hose 6. A sleeve 18 is hot-melted and fixed to the outside of the inner conduit 13. The sleeve 18 is integrally formed with a protective plate 19. The protective plate 19 is attached to the outer wall of the PE hose 6.

[0024] The engagement of socket 17 and slot 16, as well as the engagement of sleeve 18, protective plate 19, inner conduit 13 and PE hose 6, can improve the limiting effect on inner conduit 13.

[0025] The lower plug 9 has a lower insertion hole 20, and the upper plug 10 has an upper insertion hole 21. The lower insertion hole 20 is a regular hexagonal prism, and the upper insertion hole 21 is cylindrical. The upper insertion hole 21, the through hole 14, and the lower insertion hole 20 are coaxially arranged. The diameter of the virtual circumcircle of the lower insertion hole 20 is smaller than the diameter of the through hole 14. The upper insertion hole 21, the through hole 14, and the lower insertion hole 20 are all connected to a support rod 22. The support rod 22 has a radially penetrating receiving groove 23. The receiving groove 23 corresponds to and communicates with the through hole 12. The bottom of the support rod 22 matches the lower insertion hole 20. The temperature sensor assembly includes multiple temperature sensors 24, which are arranged sequentially from top to bottom within a receiving groove 23. The temperature sensors 24 are fastened to the receiving groove 23 by means of bonding, plugging, threaded connection, etc. The cables 25 used for information and power transmission of the temperature sensors 24 are connected to the data center 2 and the power supply 1 through the receiving groove 23, through a hole 14, an inner conduit 13, and an outer conduit 15. The cables 25 used for information and power transmission of the temperature sensors 24 are always in a slack state.

[0026] Furthermore, when prefabricating the monitoring device 3, the inner conduit 13 is first inserted through the through hole 12. Then, the inner conduit 13 is limited by the socket 17, sleeve 18, and protective plate 19. Then, the support rod 22, which has been fastened to the temperature sensor 24 in the receiving groove 23, is inserted. The support rod 22 is first inserted into the lower insertion hole 20 and the through hole 14. Then, the cable 25 in the receiving groove 23 is pulled out by inserting a hook or other tool into the inner conduit 13. Then, the filler 26 is filled. By using the cooperation of the support rod 22 with the lower insertion hole 20 and the upper insertion hole 21, the position of the support rod 22 can be limited, thereby limiting the position of the temperature sensor 24 and preventing it from shaking and colliding during transportation and other processes, thus avoiding damage.

[0027] The filler 26 is fine sand, and the space between the temperature sensor assembly and the hot melt tube 5 is also filled with filler.

[0028] The good fluidity of fine sand facilitates filling operations, while also providing insulation around the temperature sensor 24 and supporting the PE hose 6, making the monitoring work more accurate and stable.

[0029] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A real-time temperature monitoring system for frozen soil foundations of cold-region buildings, comprising a power supply (1), a data center (2), monitoring devices (3), and a cloud platform (4), wherein the power supply (1) is responsible for supplying power to the data center (2), the monitoring devices (3), and the cloud platform (4); the monitoring devices (3) are located underground and are responsible for monitoring soil temperature; the data center (2) transmits wired information to multiple monitoring devices (3), receives and summarizes the monitoring data from the monitoring devices (3); and the data center (2) transmits wired or wireless information to the cloud platform (4), characterized in that: The monitoring device (3) includes a heat-fusion tube (5), a PE hose (6), a sealing component, a temperature sensor assembly, and a filler (26). The heat-fusion tube (5) is inserted into the PE hose (6) with a gap. The extension direction of the heat-fusion tube (5) is the same as that of the PE hose (6). Both ends of the heat-fusion tube (5) and the PE hose (6) are sealed by the sealing component. The gap between the heat-fusion tube (5) and the PE hose (6) is filled with fine filler (26). A temperature sensor assembly is installed inside the heat-fusion tube (5). The temperature sensor assembly is arranged along the extension direction of the heat-fusion tube (5) and transmits information via wired connection to the data center (2). The temperature sensor assembly transmits power via wired connection to the power supply (1).

2. The real-time temperature monitoring system for frozen soil foundations of cold-region buildings according to claim 1, characterized in that: The sealing component includes a lower plug (9), an upper plug (10), and a limiting ring (11). The lower plug (9) is fastened to the bottom of the hot melt tube (5). The lower plug (9) is inserted into the bottom of the PE hose (6) with an interference fit. The upper plug (10) is installed on the upper part of the hot melt tube (5) and is inserted into the upper part of the PE hose (6) with an interference fit. The outer walls of the lower plug (9) and the upper plug (10) are respectively provided with circumferential limiting rings (11). The limiting rings (11) are sealed and fitted to the PE hose (6).

3. A real-time temperature monitoring system for frozen soil foundations of cold-region buildings according to claim 2, characterized in that: The hot melt tube (5) and the PE hose (6) are radially penetrated by a through hole (12). An inner conduit (13) is tightly fitted inside the through hole (12). One end of the inner conduit (13) extends into the hot melt tube (5), and the other end extends to the outside. A perforation (14) is radially penetrated by the inner conduit (13). The inner conduit (13) is connected to the outer conduit (15) to the data center (2). The cable (25) for transmitting data and power of the temperature sensor assembly is connected to the data center (2) and the power supply (1) through the perforation (14), the inner conduit (13), and the outer conduit (15).

4. A real-time temperature monitoring system for frozen soil foundations of cold-region buildings according to claim 3, characterized in that: The end of the inner conduit (13) is in contact with the inner wall of the hot melt tube (5), and the outer wall is provided with a slot (16). The extension direction of the slot (16) is the same as the extension direction of the hot melt tube (5). A vertical socket (17) is inserted into the hot melt tube (5) along the extension direction of the hot melt tube (5). The socket (17) runs through the tube from top to bottom. The socket (17) is inserted into the slot (16) to prevent the inner conduit (13) from separating from the hot melt tube (5) and the PE hose (6). A sleeve (18) is fixed to the outside of the inner conduit (13) by hot melting. The sleeve (18) is integrally formed with a protective plate (19). The protective plate (19) is in contact with the outer wall of the PE hose (6).

5. A real-time temperature monitoring system for frozen soil foundations of cold-region buildings according to claim 4, characterized in that: The lower plug (9) has a lower insertion hole (20), and the upper plug (10) has an upper insertion hole (21). The lower insertion hole (20) is a regular hexagonal prism, and the upper insertion hole (21) is cylindrical. The upper insertion hole (21), the through hole (14), and the lower insertion hole (20) are coaxially arranged. The diameter of the virtual circumcircle of the lower insertion hole (20) is smaller than the diameter of the through hole (14). The upper insertion hole (21), the through hole (14), and the lower insertion hole (20) are all connected to a support rod (22). The support rod (22) has a radially penetrating receiving groove (23). The receiving groove (23) corresponds to and communicates with the through hole (12). The bottom of the support rod (22) The part matches the lower insertion hole (20). The temperature sensor assembly includes multiple temperature sensors (24). The multiple temperature sensors (24) are arranged from top to bottom along the receiving groove (23) and located in the receiving groove (23). The temperature sensors (24) are fastened to the receiving groove (23). The cable (25) for information transmission and power transmission of the temperature sensor (24) is connected to the data center (2) and the power supply (1) through the receiving groove (23), the through hole (14), the inner conduit (13) and the outer conduit (15). The cable (25) for information transmission and power transmission of the temperature sensor (24) is always in a slack state.

6. A real-time temperature monitoring system for frozen soil foundations of cold-region buildings according to any one of claims 1-5, characterized in that: The filler (26) is fine sand, and the space between the temperature sensor assembly and the hot melt tube (5) is also filled with filler.

Images