Cooling device for asphalt concrete core wall coring

Abstract

The utility model provides a cooling device for asphalt concrete core wall coring, which relates to the technical field of dam asphalt concrete core wall construction devices and comprises a box body, a heat insulation layer is arranged at the bottom of the box body, a heat exchange plate is arranged in the box body, and the lower surface of the heat exchange plate is parallel to the lower surface of the box body. The heat exchange plate is connected with an external reservoir through a water pipe; an air inlet and an air outlet are formed in the opposite side walls in the box body respectively, and both the air inlet and the air outlet are arranged obliquely downwards; l-shaped connecting rods are arranged outside the box body, and moving wheels are arranged at the bottoms of the L-shaped connecting rods. According to the utility model, the sampling part is isolated from the asphalt concrete core wall through the heat insulating layer at the bottom of the box body, and the local part of the core wall is cooled on the premise of reducing the influence on the whole core wall, so that the sampling part is rapidly cooled; after the device is removed after sampling, the temperature of a sampling part can be quickly recovered under the influence of a peripheral area to meet the requirement of subsequent construction, so that the construction process is simplified, and the construction waiting period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of dam asphalt concrete core wall construction devices, in particular to a cooling device for coring of an asphalt concrete core wall. Background Art

[0002] During the construction of asphalt concrete core wall, in order to ensure the quality of core wall construction, the "Specification for Construction of Hydraulic Asphalt Concrete" SL514-2013 stipulates that core samples should be taken every 3 to 4 meters to evaluate whether the construction quality meets the design requirements. During the construction process, the temperature of the core wall asphalt concrete after rolling is about 110℃, and the core sample cannot be drilled immediately. It is necessary to wait until the surface temperature of the asphalt concrete drops to about 50℃ before a relatively complete core sample can be obtained, because the mechanical properties of the asphalt concrete tend to be stable at this time. However, the natural temperature drop process of asphalt concrete is slow, especially when the ambient temperature is high, the cooling rate is slower. Usually, the surface temperature can drop to about 50℃ 2 to 3 days after the asphalt concrete core wall paving construction is completed, and core sampling can be carried out at this time. If the core sample is completed after the temperature drops to the sampling temperature requirement in the natural environment, the asphalt concrete temperature is too low, which may affect the effective bonding of the upper asphalt concrete. Therefore, the surface of the asphalt concrete must be heated to about 70℃ before the upper layer can be paved. In summary, the core wall sampling process is complicated and difficult, and there is an urgent need for a cooling device that can quickly reduce the temperature of the sampling site without affecting the natural cooling of the rest of the core wall.

[0003] The invention patent with publication number CN108458547B discloses a cooling box for high-temperature asphalt concrete coring, including a cooling box body, a storage box, a condensing mechanism and an air blowing mechanism are arranged in the cooling box body, and the storage box, the condensing mechanism and the air blowing mechanism are arranged in sequence from top to bottom; the storage box includes a storage box body and a cover body arranged above the storage box body, and the bottom of the storage box body is provided with water holes I and water holes II; the condensing mechanism includes a condensing pipe and a clamping plate I arranged on both sides of the condensing pipe and plywood II, the axial cross-section of the condenser arranged between the plywood I and the plywood II is wavy. After analysis, it is found that although both the public document and the technical document adopt the technical feature of utilizing water flow for heat exchange, the technical solution in the public document cannot confirm whether the surface temperature of the asphalt concrete core wall has dropped to the sampling temperature during the cooling process; secondly, frequent sampling is required during the pouring of the asphalt concrete core wall, and the technical solution adopted in the public document is a box-type structure with a size of 100×80×50cm, which is not suitable for frequent sampling work. Utility Model Content

[0004] The utility model provides a cooling device for coring an asphalt concrete core wall, aiming at solving the technical problems existing in the prior art mentioned in the background technology.

[0005] The utility model provides the following technical solutions to achieve the above objectives:

[0006] A cooling device for coring asphalt concrete core wall comprises a box body, a heat insulation layer is arranged at the bottom of the box body, a heat exchange plate is arranged inside the box body, the lower surface of the heat exchange plate is parallel to the lower surface of the box body, and the heat exchange plate is connected to an external water reservoir through a water pipe; air inlets and air outlets are respectively arranged on opposite side walls inside the box body, and the air inlets and air outlets are arranged to be inclined downward, a temperature sensor is arranged at the bottom of the inner side wall of the box body, and the temperature sensor is communicatively connected with a digital display screen on the outer wall of the box body; an L-shaped connecting rod is arranged outside the box body, and a moving wheel is arranged at the bottom of the L-shaped connecting rod.

[0007] Furthermore, a reciprocatingly bent through groove is provided in the heat exchange plate.

[0008] Furthermore, the air inlet and the air outlet are provided with exhaust fans in the same direction.

[0009] Furthermore, one end of the water delivery pipe input section is connected to the bottom of the external water reservoir, and the other end is connected to the heat exchange plate.

[0010] Furthermore, a water pump and a cooling box are provided on the input section of the water pipe.

[0011] Furthermore, the cooling box is a box body with an opening at the top, the top of the box body is movably connected to a top cover, a liquid level sensor is arranged in the box body, and the liquid level sensor is communicatively connected with an audible and visual alarm arranged outside the cooling box.

[0012] Furthermore, a hollow transverse pipe for the water pipe to pass through is arranged in the cooling box.

[0013] Furthermore, the heat exchange plate is made of metal.

[0014] Furthermore, an electric push rod is arranged on the L-shaped connecting rod.

[0015] Beneficial Effects

[0016] Compared with the prior art, the device of the utility model isolates the sampling part from the asphalt concrete core wall through the insulation layer at the bottom of the box body, cools down the core wall locally while minimizing the impact on the core wall as a whole, and displays the cooling process in real time through the temperature sensor, ensuring the efficiency of the sampling work while cooling down quickly. At the same time, the cooling box is monitored by the liquid level sensor to ensure the cooling effect. After sampling and removing the device of the utility model, the sampling part can also quickly return to temperature under the influence of the surrounding area to meet the requirements of subsequent construction, thereby simplifying the construction process and reducing the construction waiting period. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the direction of the through grooves in the heat exchange plate of the utility model;

[0020] Figure numerals: box body—1; insulation layer—2; L-shaped connecting rod—3; moving wheel—4; air inlet—5; air outlet—6; heat exchange plate—7; through groove—71; water pipe—8; external water reservoir—9; water pump—10; cooling box—11; hollow horizontal pipe—12; top cover—13. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0022] It should be noted that in the present invention: the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or apparatuses; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like are based on the directions or positional relationships shown in the drawings. These The terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation; the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence; the terms "install", "set", "provided with", "connected", "connected", "sleeved", etc. should be understood in a broad sense; for example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. In addition, some terms can be used to express other meanings in addition to indicating orientation or positional relationships. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For ordinary technicians in this field, the specific meanings of these terms in the utility model can be understood according to specific circumstances.

[0023] Example 1. A cooling device for coring asphalt concrete core wall, with a structure reference Figure 1-2 , including a box body 1, a heat insulation layer 2 is arranged at the bottom of the box body 1, a heat exchange plate 7 is arranged inside the box body 1, the lower surface of the heat exchange plate 7 is parallel to the lower surface of the box body 1, and the heat exchange plate 7 is connected to the external water reservoir 9 through a water pipe 8; an air inlet 5 and an air outlet 6 are arranged on the opposite side walls inside the box body 1, respectively, and the air inlet 5 and the air outlet 6 are arranged tilted downward, a temperature sensor is arranged at the bottom of the inner side wall of the box body 1, and the temperature sensor is connected to the digital display screen on the outer wall of the box body 1 by communication; an L-shaped connecting rod 3 is arranged outside the box body 1, and a moving wheel 4 is arranged at the bottom of the L-shaped connecting rod 3. By setting the temperature sensor and the communication connection between the temperature sensor and the digital display screen, the cooling process can be directly observed, and the sampling work can be started when the asphalt concrete core wall drops to the required temperature, thereby improving the sampling efficiency.

[0024] The heat exchange plate 7 is provided with a reciprocatingly bent through groove 71. The reciprocatingly bent through groove 71 can improve the cooling efficiency of the heat exchange plate 7.

[0025] The air inlet 5 and the air outlet 6 are provided with exhaust fans in the same direction. The air circulation inside the box 1 is accelerated by providing exhaust fans in the same direction, thereby improving the heat exchange efficiency.

[0026] One end of the input section of the water pipe 8 is connected to the bottom of the external water reservoir 9, and the other end is connected to the heat exchange plate 7. The cooling box 11 is a box body with an open top, and the top of the box body is movably connected to the top cover 13. A liquid level sensor is arranged in the box body, and the liquid level sensor is communicated and connected with the sound and light alarm arranged outside the cooling box 11. A water pump 10 and a cooling box 11 are arranged on the input section of the water pipe 8. A hollow transverse pipe 12 is arranged in the cooling box 11 for the water pipe 8 to pass through. The water flow rate is controlled by the water pump 10 to ensure the heat exchange efficiency. By adding ice cubes in the cooling box 11, the water temperature of the water pipe 8 is fully reduced to improve the heat exchange efficiency. As the cooling process continues, the ice cubes in the cooling box 11 begin to melt, and the water level in the cooling box 11 begins to rise. When the water level rises to the height set by the liquid level sensor, the liquid level sensor is triggered. The liquid level sensor sends an alarm through the sound and light alarm, so as to clean the liquid in the cooling box 11 and add ice cubes in time to ensure the heat exchange efficiency of the entire sampling process.

[0027] The heat exchange plate 7 is made of metal. The heat transfer properties of metal materials can be used to improve heat exchange efficiency.

[0028] An electric push rod is arranged on the L-shaped connecting rod 3. The electric push rod is arranged to facilitate lowering the box body 1 and the heat exchange plate 7 to cool the concrete core wall.

[0029] The working principle and use method of the utility model: At the place where the temperature needs to be lowered, the electric push rod part of the L-shaped connecting rod 3 is used to lower the box body 1 and the heat exchange plate 7 to press against the upper surface of the core wall, and the insulation layer 2 at the bottom of the box body 1 is used to isolate the sampling area inside the box body 1 from other parts of the external core wall. The exhaust fan in the air inlet 5 and the air outlet 6 of the box body 1 is used to ensure the gas circulation inside the box body. After the heat exchange plate 7 is pressed against the core wall, the water pipe 8 pumps water from the external water reservoir 9 to the heat exchange plate 7 through the water pump 10. The water flows into the heat exchange plate 7 after being cooled by the cooling box 11, and heat is exchanged between the heat exchange plate 7 and the sampling area of ​​the core wall, thereby quickly reducing the temperature of the sampling area of ​​the core wall. The temperature of the water flow after heat exchange increases, and it flows back to the external water reservoir 9 under the action of the water pump 10 to complete the water circulation. During this process, the temperature of the external water reservoir 9 naturally decreases, the water with higher temperature is located at the upper part of the external water reservoir 9, and the water with lower temperature is located at the lower part of the external water reservoir 9. The pumping end of the water pipe 8 is inserted into the bottom of the external water reservoir 9 to ensure that the temperature of the water used for heat exchange of the heat exchange plate 7 is lower.

[0030] Embodiment 2. This embodiment has the same structure as Embodiment 1, and the only difference is that when the environment for sampling does not have the conditions for building an external water storage tank 9, other water storage facilities or items can be used instead, such as a water storage bucket. When used, similar to Embodiment 1, the pumping end of the water pipe 8 is connected to the bottom of the water storage bucket, and the return end of the water pipe 8 is connected to the top of the water storage bucket to ensure heat exchange efficiency.

[0031] Obviously, the above is only a part of the embodiments of the utility model, not all of the embodiments. The above embodiments are not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any combination, modification, equivalent replacement, improvement and all other embodiments that can be made by ordinary technicians in the field within the spirit and principle of the utility model should be within the protection scope of the utility model.

Claims

1. A cooling device for coring asphalt concrete core wall, characterized in that: The invention comprises a box body (1), wherein a heat insulating layer (2) is arranged at the bottom of the box body (1), a heat exchange plate (7) is arranged inside the box body (1), the lower surface of the heat exchange plate (7) is parallel to the lower surface of the box body (1), and the heat exchange plate (7) is connected to an external water storage tank (9) through a water pipe (8); an air inlet (5) and an air outlet (6) are respectively arranged on opposite side walls inside the box body (1), and the air inlet (5) and the air outlet (6) are both arranged to be inclined downward; a temperature sensor is arranged at the bottom of the side wall inside the box body (1), and the temperature sensor is communicatively connected to a digital display screen on the outer wall of the box body (1); an L-shaped connecting rod (3) is arranged outside the box body (1), and a moving wheel (4) is arranged at the bottom of the L-shaped connecting rod (3).

2. The cooling device for coring asphalt concrete core wall according to claim 1, characterized in that: The heat exchange plate (7) is provided with a reciprocatingly bent through groove (71).

3. The cooling device for coring asphalt concrete core wall according to claim 1, characterized in that: The air inlet (5) and the air outlet (6) are provided with exhaust fans in the same direction.

4. The cooling device for coring asphalt concrete core wall according to claim 1, characterized in that: One end of the input section of the water delivery pipe (8) is connected to the bottom of the external water reservoir (9), and the other end is connected to the heat exchange plate (7).

5. The cooling device for coring asphalt concrete core wall according to claim 4, characterized in that: A water pump (10) and a cooling box (11) are provided on the input section of the water delivery pipe (8).

6. The cooling device for coring asphalt concrete core wall according to claim 5, characterized in that: The cooling box (11) is a box body with an open top, the top of the box body is movably connected to a top cover (13), a liquid level sensor is arranged in the box body, and the liquid level sensor is communicatively connected to an audible and visual alarm arranged outside the cooling box (11).

7. The cooling device for coring asphalt concrete core wall according to claim 5, characterized in that: The cooling box (11) is provided with a hollow transverse pipe (12) through which the water pipe (8) passes.

8. The cooling device for coring asphalt concrete core wall according to claim 1, characterized in that: The heat exchange plate (7) is made of metal.

9. The cooling device for coring asphalt concrete core wall according to claim 1, characterized in that: The L-shaped connecting rod (3) is provided with an electric push rod.

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