Temperature measuring device for mass concrete

Abstract

The application provides a temperature measuring device for mass concrete, comprising a heat transfer assembly, a temperature sensor and a heat preservation cover; wherein a part of the heat transfer assembly is arranged in a part to be detected inside the mass concrete, and the other part extends out of the surface of the mass concrete; the heat preservation cover is arranged on the part of the heat transfer assembly extending out of the mass concrete; and the temperature sensor is arranged on the heat transfer assembly and close to the top of the heat preservation cover to detect the temperature of the heat transfer assembly so as to obtain the temperature of the mass concrete. The temperature measuring device for mass concrete provided in the embodiment of the application can transfer the heat in the mass concrete to the heat preservation cover through the heat transfer assembly, and then collect the temperature of the heat transfer assembly through the temperature sensor, so that the temperature of the mass concrete can be obtained. Compared with the prior art, the temperature measuring device is simple, fast and accurate, and the temperature of the center of the mass concrete can be grasped in time.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and more specifically, to a temperature measuring device for large-volume concrete. Background Technology

[0002] Mass concrete refers to large-volume concrete structures with a minimum geometric dimension of 1 meter, or concrete expected to develop harmful cracks due to temperature changes and shrinkage caused by the hydration of cementitious materials. Section 4.1.27 of the "Technical Specification for Waterproofing of Underground Engineering" (GB50108-2008) explicitly requires that the temperature difference between the concrete core and surface should not exceed 25℃, and the temperature difference between the concrete surface and the ambient temperature should not exceed 20℃. Due to their large volume and small surface area, mass concrete experiences concentrated heat release from cement hydration, resulting in rapid internal heating and a significant temperature difference between the inside and outside of the concrete. This large temperature difference can cause temperature cracks in the concrete, affecting structural safety and normal use.

[0003] Existing technologies often employ pre-embedded temperature measuring tubes or sensors at the center of the concrete, determining the center temperature using data transmitted from the thermometer or sensor. However, current intelligent temperature measurement technologies frequently fail to measure temperature due to damage to the pre-embedded temperature measuring circuits caused by concrete vibration. During construction, workers must strengthen the protection of the pre-embedded temperature measuring instruments and circuits. Once damaged, intelligent temperature measurement technology cannot measure the center temperature of the concrete, often resulting in a situation where there are no remedial measures. In existing conventional temperature measurement technologies, temperature fluctuations caused by varying concrete temperatures at different locations when the thermometer is lifted lead to inaccurate measurement results. Summary of the Invention

[0004] In view of this, the present invention proposes a temperature measuring device for large-volume concrete, which aims to solve the problems of low temperature measuring efficiency and inaccurate temperature measuring data in the prior art for large-volume concrete.

[0005] This invention proposes a temperature measuring device for large-volume concrete, comprising: a heat transfer component, a temperature sensor, and a heat insulation cover; wherein,

[0006] One part of the heat transfer assembly is used for the part to be tested placed inside the large volume of concrete, and the other part is used to extend out of the surface of the large volume of concrete.

[0007] The insulation cover is provided on the portion of the heat transfer assembly that extends out of the large volume of concrete.

[0008] The temperature sensor is located on the heat transfer assembly near the top of the insulation cover to detect the temperature of the heat transfer assembly, so as to obtain the temperature of the large volume concrete.

[0009] Furthermore, in the aforementioned temperature measuring device for large-volume concrete, the heat transfer component is made of copper plate.

[0010] Furthermore, in the aforementioned temperature measuring device for large-volume concrete, the heat transfer component includes: an integrally formed vertical section and a horizontal section; wherein,

[0011] The horizontal segment is connected to one end of the vertical segment, and the connection between the two is provided with a transition fillet.

[0012] Furthermore, the aforementioned temperature measuring device for large-volume concrete also includes: a heat insulation structure; wherein,

[0013] The insulation structure is disposed on the heat transfer component in the section below the surface of the large-volume concrete.

[0014] Furthermore, in the aforementioned temperature measuring device for large-volume concrete, the height of the insulation structure is 2 / 3 to 4 / 5 of the height of the vertical section of the heat transfer component.

[0015] Furthermore, in the aforementioned temperature measuring device for large-volume concrete, the insulation structure is an insulation jacket or insulation layer.

[0016] Furthermore, in the aforementioned temperature measuring device for large-volume concrete, the insulation layer is an insulation coating applied to the outside of the heat transfer component.

[0017] Furthermore, the aforementioned temperature measuring device for large-volume concrete also includes: a temperature recording device; wherein,

[0018] The temperature recording device is connected to the temperature sensor to record the temperature data acquired by the temperature sensor.

[0019] Furthermore, in the aforementioned temperature measuring device for large-volume concrete, the insulation cover is provided with a wire hole, and an insulation sealing ring is installed inside the wire hole.

[0020] Furthermore, in the aforementioned temperature measuring device for large-volume concrete, the insulation cover is made of polymethyl methacrylate or polystyrene.

[0021] The temperature measuring device for large-volume concrete in this invention transfers heat from the large-volume concrete to the insulation cover through a heat transfer component. The temperature of the large-volume concrete is then obtained by collecting the temperature of the heat transfer component through a temperature sensor. Compared with the prior art, it eliminates the need for pre-embedded temperature sensors or temperature measuring tubes. Temperature data can be directly measured on the outside of the concrete through a temperature sensor, which is simple, fast, and can greatly improve the temperature measuring efficiency of large-volume concrete. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 A schematic diagram illustrating the actual use of the large-volume concrete temperature measuring device provided in an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of a large-volume concrete temperature measuring device provided in an embodiment of the present invention;

[0025] Figure 3 This is another structural schematic diagram of the large-volume concrete temperature measuring device provided in the embodiments of the present invention. Detailed Implementation

[0026] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] See Figures 1 to 3 The temperature measuring device for large-volume concrete according to an embodiment of the present invention includes: a heat transfer component 1, a temperature sensor 2, and a heat insulation cover 3; wherein, a portion of the heat transfer component 1 is used for the part to be tested placed inside the large-volume concrete, and another portion is used for extending out of the surface of the large-volume concrete; the heat insulation cover 3 is covered on the portion of the heat transfer component 1 that extends out of the large-volume concrete; the temperature sensor 2 is disposed on the heat transfer component 1 near the top of the heat insulation cover 3, and is used to detect the temperature of the heat transfer component 1 in order to obtain the temperature of the large-volume concrete.

[0028] Specifically, the heat transfer component 1 can be made of a metal material with good thermal conductivity, preferably a copper plate. The part to be tested inside the large-volume concrete can include the center and surface of the large-volume concrete. In use, the heat transfer component 1 is placed in the large-volume concrete, and the heat in the large-volume concrete will be transferred to the insulation cover 3 through the heat transfer component 1. Then, the temperature of the large-volume concrete can be obtained by collecting the temperature of the heat transfer component 1 through the temperature sensor 2.

[0029] More specifically, the heat transfer component 1 includes: an integrally formed vertical section 11 and a horizontal section 12; wherein, the horizontal section 12 is connected to one end of the vertical section 11, and the connection between the two is provided with a transition rounded corner.

[0030] Specifically, both the vertical section 11 and the horizontal section 12 can be plate-shaped, column-shaped, or tubular structures. In this embodiment, the heat transfer component can be a copper plate with an "L-shaped" corner. The length ratio of the vertical section 11 to the horizontal section 12 can be 3 to 5:1. To prevent the heat transfer component 1 from shaking during concrete vibration, preferably, several connecting holes are provided on the horizontal section for anchoring to the reinforcing mesh of the large-volume concrete using anchoring nails.

[0031] In this embodiment, the heat insulation cover 3 can be a columnar structure with an open bottom. The heat insulation cover 3 has a wiring hole to allow the temperature sensor 2 to be connected to an external circuit or other monitoring equipment via a connecting wire. Furthermore, a heat insulation sealing ring is provided inside the wiring hole to prevent heat from the heat transfer component 1 from dissipating to the outside and to prevent the external environment from affecting the temperature measurement process. The heat insulation sealing ring can be an O-ring made of polyurethane. The heat insulation cover 3 is made of polymethyl methacrylate or polystyrene to facilitate the operator's observation of the temperature measurement status of the temperature measuring device.

[0032] It is evident from the above that the temperature measuring device for large-volume concrete provided in this embodiment transfers heat from the large-volume concrete to the insulation cover through a heat transfer component, and then obtains the temperature of the large-volume concrete by collecting the temperature of the heat transfer component through a temperature sensor. Compared with the prior art, it no longer requires pre-embedded temperature sensors or temperature measuring tubes, and the temperature data can be directly measured on the outside of the concrete by a temperature sensor. It is simple, fast, and can greatly improve the temperature measuring efficiency of large-volume concrete.

[0033] Continue reading Figure 3 In the above embodiments, it may further include: a heat insulation structure 4; wherein the heat insulation structure 4 is disposed on the heat transfer component 1 in a section below the surface of the large-volume concrete.

[0034] Specifically, the heat insulation structure 4 is a heat insulation sleeve or a heat insulation layer. In a preferred embodiment, the heat insulation layer is a heat insulation coating applied to the exterior of the heat transfer component 1.

[0035] Preferably, the height of the insulation structure 4 is 2 / 3 to 4 / 5 of the height of the vertical section of the heat transfer component 1, and a preset distance is maintained between the bottom of the insulation structure 4 and the horizontal section of the heat transfer component 1 in the vertical direction. This preset distance can be 1 / 10 to 1 / 6 of the height of the vertical section of the heat transfer component 1, to ensure that the heat in the center of the large-volume concrete can be transferred upwards to the insulation cover 3. For example, the height of the heat transfer component 1 is 20cm, the height of its exposed portion above the surface of the large-volume concrete is 5cm, and the height of the insulation structure 4 is 10cm.

[0036] It can be seen that by setting an insulation structure 4 outside the heat transfer component 1, the heat in the center of the concrete can be prevented from being lost to the external environment through the heat transfer component 1. This ensures that the temperature data obtained by the temperature sensor 2 inside the insulation cover 3 is the temperature of the center of the large-volume concrete, which helps to ensure the accuracy of the temperature measurement results.

[0037] In the above embodiments, a temperature recording device 5 may also be included; wherein the temperature recording device is connected to the temperature sensor 2 and is used to record the temperature data acquired by the temperature sensor 2. A temperature sensor 2 is installed on the top of the heat transfer assembly 1 and connected to the temperature recording device to form an intelligent temperature measurement and control system, which can automatically realize large-volume temperature recording.

[0038] Please combine Figure 1 As shown, in this embodiment, when measuring the center temperature of a large-volume concrete, the heat transfer device requires setting an insulation structure 4 at a preset location on the heat transfer component before embedding the heat transfer component at the center position before concrete pouring. When measuring the surface temperature of the large-volume concrete, it is not necessary to set an insulation structure 4 at the preset location on the heat transfer component; the heat transfer component can be embedded at a preset location below the concrete surface before concrete pouring.

[0039] In summary, the large-volume concrete temperature measuring device provided by this invention transfers heat from the large-volume concrete to the insulation cover 3 via a heat transfer component. The temperature of the large-volume concrete is then obtained by collecting the temperature of the heat transfer component through a temperature sensor 2. Compared to existing technologies, this eliminates the need for pre-embedded temperature sensors 2 or temperature measuring tubes. Temperature data is directly measured outside the concrete via the temperature sensor 2, making it simple, fast, and accurate. It allows for timely monitoring of the concrete's core temperature and saves the grouting and sealing process required for pre-embedded temperature measuring tubes, thus improving construction efficiency. Furthermore, the insulation structure 4 outside the heat transfer component prevents heat loss from the concrete's core to the external environment, ensuring that the temperature data obtained by the temperature sensor 2 inside the insulation cover 3 accurately reflects the core temperature of the large-volume concrete, thus guaranteeing the accuracy of the temperature measurement results.

[0040] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A temperature measuring device for large-volume concrete, characterized in that, include: Heat transfer components, temperature sensors, insulation covers, and thermal insulation structures; among which, One part of the heat transfer assembly is used for the part to be tested placed inside a large volume of concrete, and the other part is used for Extending out the surface of the large-volume concrete; The insulation cover is provided on the portion of the heat transfer component that extends out of the large volume concrete; the insulation cover has a wire hole, and an insulation sealing ring is provided in the wire hole; the insulation cover is made of polymethyl methacrylate or polystyrene. The temperature sensor is located on the heat transfer assembly near the top of the insulation cover to detect... The heat transfer component is used to obtain the temperature of the large-volume concrete. The heat transfer component is made of copper plate and includes: an integrally formed vertical section and a horizontal section; wherein the length ratio of the vertical section to the horizontal section is 3~5:1; the horizontal section has several connecting holes for anchoring to the steel mesh of the large-volume concrete through anchoring nails; one end of the horizontal section is connected to one end of the vertical section, and the connection part is provided with a transition rounded corner; the insulation structure is set on the heat transfer component in the section below the surface of the large-volume concrete; the height of the insulation structure is 2 / 3-4 / 5 of the height of the vertical section of the heat transfer component; the insulation layer is an insulation coating applied to the outside of the heat transfer component.

2. The temperature measuring device for large-volume concrete according to claim 1, characterized in that, The insulation structure is heat-insulating. A jacket or insulation layer.

3. The temperature measuring device for large-volume concrete according to claim 1, characterized in that, Also includes: Temperature recording device; wherein, The temperature recording device is connected to the temperature sensor to record the temperature data acquired by the temperature sensor.

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