Concrete panel pouring, spraying and curing device

Abstract

The utility model discloses a concrete panel pouring spraying maintenance device which comprises a heat preservation and moisture preservation maintenance composite coiled material and a water supply system, the heat preservation and moisture preservation maintenance composite coiled material comprises a contact layer, a spraying layer, a reinforcing layer, a heat preservation layer and a protection layer which are sequentially connected from inside to outside, and the spraying layer comprises a plurality of spraying water pipes which are evenly distributed. A plurality of corresponding water spraying holes and water seepage holes are formed in the side, opposite to the contact layer, of the spraying water pipe, and a water supply system is connected to the spraying water pipe. The device can realize uniform spraying for concrete surface curing, and can automatically adjust the spraying size according to conditions, thereby reducing the operation burden of workers and ensuring the curing effect.

Description

A spray curing device for concrete panel pouring Technical Field

[0001] This utility model relates to the field of concrete curing technology, specifically to a concrete panel pouring spray curing device. Background Technology

[0002] In the construction of concrete panels for hydraulic and hydropower projects, temperature and humidity control are crucial for ensuring the crack resistance of the structure. According to the "Design Code for Temperature Control of Concrete Dams" (NB / T 35092-2017) and the "Code for Construction of Hydraulic Concrete" (SL677-2014), concrete panels must meet certain technical requirements: the concrete panels must be kept moist for more than 14 days (humidity > 90%); the temperature difference between the inside and outside should be controlled within 20℃; the average daily cooling rate should not exceed 1℃ / d; and the surface insulation during cold waves must meet the requirement of an equivalent heat transfer coefficient β ≤ 2.0 W / (㎡·K), etc.

[0003] Traditional concrete curing processes commonly employ a "geotextile covering + manual watering" method. However, this method has several drawbacks: First, it requires continuous manual watering, which is not only labor-intensive and costly, but also makes it difficult to ensure even watering, leading to frequent wet-drying cycles on the panel surface. This can easily induce shrinkage cracks, posing a serious threat to the structural safety of the dam. Second, single-layer geotextiles have poor insulation performance at night, especially during cold snaps, making it difficult to effectively suppress the temperature difference between the inside and outside of the concrete. Therefore, additional insulation blankets need to be manually applied for insulation, and these blankets need to be removed during the day to dissipate heat. This cumbersome process increases labor input and raises manual curing costs. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a concrete panel pouring spray curing device, which can achieve uniform spray curing of concrete surface and can automatically adjust the spray size according to the situation, reducing the workload of workers and ensuring curing effect.

[0005] A concrete panel pouring spray curing device includes a thermal insulation and moisture retention curing composite roll and a water supply system. The thermal insulation and moisture retention curing composite roll includes a contact layer, a spray layer, a reinforcement layer, a thermal insulation layer and a protective layer connected sequentially from the inside to the outside. The spray layer includes multiple evenly distributed spray pipes. On the side of the spray pipes opposite to the contact layer, multiple corresponding spray holes and seepage holes are evenly arranged. The water supply system is connected to the multiple spray pipes.

[0006] A further technical solution is as follows: one end of the spray pipe extends to the outside of the contact layer and is connected to a flow control valve via a quick connector. The other end of the flow control valve is connected to the water supply system, and the other end of the spray pipe is closed. A set of sensing components is provided on the lower surface of the contact layer for each corresponding area. The sensing components are electrically connected to the flow control valve of the spray pipe in their corresponding area. The flow control valve and the sensing components are electrically connected to the controller.

[0007] A further technical solution is that the sensing components include a temperature sensor and a humidity sensor.

[0008] A further technical solution is: the spray pipes are arranged in a continuous S-shaped bend, consisting of alternating straight pipe sections and transition sections connected together, with the transition sections perpendicularly connected to the straight pipe sections and the connection points being smoothly rounded.

[0009] A further technical solution is to arrange the spray holes evenly on the spray pipe, with the spacing between two adjacent spray holes set to 50-60cm.

[0010] A further technical solution is as follows: the water supply system includes a water supply pipe and an inlet pipe. The inlet pipe includes a main pipe and multiple branch pipes installed on the main pipe. The inlet end of the water supply pipe is connected to a water pump, and the outlet end is connected to the main pipe of the inlet pipe through an adapter. The end of the main pipe is closed. The multiple branch pipes correspond to multiple spray water pipes respectively, and the end of each branch pipe is connected to the other end of the flow control valve on the corresponding spray water pipe.

[0011] A further technical solution is: the main pipeline is formed by connecting multiple sections of the first water inlet pipe in series through multiple T-shaped connectors, and the branch pipeline is formed by connecting the second water inlet pipe to the lateral inlet of the T-shaped connector.

[0012] A further technical solution is that the contact layer and protective layer are made of polyethylene film, the reinforcing layer is made of geotextile, and the insulation layer is made of polyethylene foam.

[0013] A further technical solution is to provide tensile ring holes around the four edges of the thermal insulation and moisture-retaining composite roll material.

[0014] The beneficial effects of this utility model are:

[0015] This device utilizes a thermal insulation and moisture-retaining curing composite membrane and a water supply system. The membrane comprises, from the inside out, a contact layer, a spray layer, a reinforcement layer, an insulation layer, and a protective layer. The water supply system supplies water to the spray pipes in the spray layer. Water from these pipes is sprayed onto the concrete surface through evenly distributed perforations in the contact layer, ensuring uniform curing and preventing localized drying or water erosion. Temperature and humidity sensors monitor the concrete surface temperature and humidity. The controller adjusts the flow control valve opening based on these conditions, thereby regulating the water flow in the spray pipes to ensure the concrete surface temperature and humidity meet curing requirements, reducing manual labor. The reinforcement layer increases the overall strength of the membrane, while the insulation layer provides excellent heat insulation, preventing excessive heat loss from the concrete surface and preventing external low temperatures from affecting the curing temperature. The protective layer provides seepage and crack prevention and further enhances the strength of the membrane. By combining the insulation of the insulation layer with the water spraying of the spray layer, the process of manually covering the insulation with cotton quilts can be replaced, reducing the labor burden of workers, improving construction efficiency, and reducing construction costs. Attached Figure Description

[0016] Figure 1 is an exploded view of the structure of this utility model;

[0017] Figure 2 is a schematic diagram of the structure of the spray pipe;

[0018] Figure 3 is a schematic diagram of the lower surface of the contact layer;

[0019] Figure 4 is a schematic diagram of the laying of thermal insulation, moisture retention and maintenance composite roll material.

[0020] In the picture:

[0021] 1. Thermal insulation and moisture retention composite roll material; 11. Contact layer; 111. Drainage hole; 12. Spray layer; 121. Spray water pipe; 1211. Straight pipe section; 1212. Transition section; 13. Reinforcing layer; 14. Insulation layer; 15. Protective layer; 2. Quick connector; 3. Flow control valve; 4. Temperature sensor; 5. Humidity sensor; 6. Water supply system; 61. Water supply pipe; 611. Adapter; 612. Water supply pipe; 62. Inlet pipe; 621. Main pipeline; 6211. First inlet pipe; 6212. T-joint; 622. Branch pipeline; 6221. Second inlet pipe; 7. Dam. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] A concrete panel pouring spray curing device, as shown in Figures 1-4, includes a thermal insulation and moisture-retaining curing composite roll 1 and a water supply system 6. The thermal insulation and moisture-retaining curing composite roll 1 includes a contact layer 11, a spray layer 12, a reinforcing layer 13, a thermal insulation layer 14, and a protective layer 15 connected sequentially from the inside out. Adjacent layers are fixedly connected by hot pressing or adhesive. The spray layer 12 includes multiple evenly distributed spray pipes 121. On the side of the spray pipes 121 opposite to the contact layer 11, multiple corresponding spray holes and seepage holes 111 are evenly arranged. The water supply system 6 is connected to the multiple spray pipes 121. Water is supplied to each spray pipe 121 through the water supply system 6. The water in the spray pipes 121 flows from the spray holes through the seepage holes 111 on the contact layer 11 to the concrete surface, keeping the concrete surface moist.

[0026] One end of the spray pipe 121 extends to the outside of the contact layer 11 and is connected to a flow control valve 3 via a quick connector 2. The other end of the flow control valve 3 is connected to the water supply system 6, and the other end of the spray pipe 121 is closed. A set of sensing components is provided on the lower surface of the contact layer 11 at corresponding areas. The area corresponding to each sensing component is set to the spray coverage area of ​​one spray pipe 121. The sensing components are electrically connected to the flow control valve 3 of the spray pipe 121 in their corresponding areas. The flow control valve 3 and the sensing components are electrically connected to the controller. The flow control valve 3 is connected to the spray pipe 121 via the quick connector 2 and a connecting pipe for easy disassembly, assembly, and maintenance. In one embodiment, the controller is housed in a mounting box, which is fixed to one side of the flow control valve 3. A power supply is also connected to the flow control valve 3 and the controller. The controller is a PLC controller, and the flow control valve can be a Kepler electric butterfly valve. The circuit layout and control methods between the various electronic components are existing technologies and will not be described further here.

[0027] The sensing components include a temperature sensor 4 and a humidity sensor 5, used to detect the temperature and humidity of the concrete surface, respectively. Temperature sensor 4 and humidity sensor 5 emit electrical signals, which the controller receives and adjusts the opening of the flow control valve 3 to control the water flow, thereby controlling the spraying of the sprinkler pipe 121. This eliminates the need for real-time manual monitoring and operation, reducing the workload of workers. When the concrete surface temperature is too high (e.g., above 30℃) or the humidity is too low (e.g., below 90%), the flow control valve 3 increases its opening to increase the water supply and thus the spraying volume of the sprinkler pipe 121. When the temperature sensor 4 detects that the concrete surface temperature is too low (e.g., below 5℃), the flow control valve 3 decreases its opening to reduce the water supply. Specifically, a PT100 temperature sensor, a capacitive humidity sensor, or an SLHT7 concrete temperature and humidity sensor can be used. The adjustment parameters of the flow control valve 3 are set according to the actual site conditions; the specific setting method is existing technology and will not be elaborated here.

[0028] The spray pipes 121 are arranged in a continuous S-shaped bend, consisting of alternating straight pipe sections 1211 and transition sections 1212. The straight pipe sections 1211 are parallel to the width direction of the contact layer 11, and the transition sections 1212 are perpendicularly connected to the straight pipe sections 1211 with a smooth transition at the connection point, allowing adjacent straight pipe sections 1211 to change direction through the transition sections 1212. Specifically, the spray pipes 121 are made of polyethylene pipes. Two to five spray pipes are arranged at the bottom of the contact layer 1, with a spacing of 50 cm between adjacent spray pipes 121. The diameter of the spray pipes 121 can be set to 5 to 10 mm, and each spray pipe 121 has 5 to 8 straight pipe sections 1211. Spray holes are evenly distributed on the spray pipes 121, with a spacing of 50 to 60 cm between adjacent spray holes.

[0029] The contact layer 11 is made of a 0.02mm thick polyethylene film. Water is evenly seeped into the concrete surface through the water seepage holes 111 on the contact layer 11 to keep the concrete surface moist and reduce shrinkage and cracks caused by drying.

[0030] The reinforcing layer 13 uses 2mm thick geotextile, which can enhance the overall tear resistance of the thermal insulation and moisture retention composite roll 1 and make it less prone to tearing and damage.

[0031] The insulation layer 14 is made of 5mm polyethylene foam, with an equivalent heat transfer coefficient β of about 1.8W / (㎡·K). Compared with traditional cotton quilts, it has better heat insulation effect, can effectively block the entry of external heat, maintain the relative stability of internal temperature, and performs well even in low temperature environments.

[0032] The protective layer 15 is made of 0.02mm thick polyethylene film with a moisture permeability of <0.5g / (㎡·24h). The protective layer 15 is waterproof and wear-resistant, and can protect the surface of the heat-insulating, moisture-retaining and maintenance composite roll 1.

[0033] The water supply system 6 includes a water supply pipe 61 and an inlet pipe 62. The inlet pipe 62 includes a main pipe 621 and multiple branch pipes 622 installed on the main pipe 621. The inlet end of the water supply pipe 61 is connected to a water pump, and the outlet end is connected to the main pipe 621 of the inlet pipe 62 via an adapter 611. The end of the main pipe 621 is closed. The position and number of branch pipes 622 correspond to the position and number of sprinkler pipes 121, respectively. The end of each branch pipe 622 is connected to the other end of the flow control valve 3 on the corresponding sprinkler pipe 121. The position of the water pump is set according to the concrete pouring position, and the lengths of the water supply pipe 61 and the inlet pipe 62 are adjusted as needed.

[0034] Specifically, the main pipeline 621 is formed by connecting multiple sections of first inlet pipes 6211 in series through multiple T-joints 6212, and the branch pipeline 622 is formed by second inlet pipes 6221 inserted into the lateral inlets of the T-joints 6212. The number and location of the first inlet pipes 6211 and the second inlet pipes 6221 are arranged according to the dam topography and the number and location of the sprinkler pipes 121.

[0035] In a more preferred embodiment, the thermal insulation and moisture retention composite roll 1 is provided with tensile ring holes along its four perimeters. The tensile ring holes are used to connect wires or ropes, so that the thermal insulation and moisture retention composite roll is fixed to the dam panel to prevent it from being blown away by strong winds, and to facilitate pulling the thermal insulation and moisture retention composite roll 1 to spread it on the concrete surface.

[0036] In use, the thermal insulation and moisture-retaining composite roll 1 is attached to the tail of the slipform body at a position of 15-20 meters. As the slipform body is pulled upwards during pouring, the thermal insulation and moisture-retaining composite roll 1 also moves upwards, automatically spreading onto the concrete surface of the dam 7. After the thermal insulation and moisture-retaining composite roll 1 is applied, water is pumped from the engineering water source or the collection pool at the dam's toe slab. Water flows through the water supply pipe 61 into the main pipeline 621 of the inlet pipe 62, and then from the various branch pipes 622 of the main pipeline 621 through the flow control valve 3 into the spray pipe 121. The flow control valve 3 automatically adjusts the water volume under the control of the controller. Water from the spray pipe 121 is evenly sprayed from the spray holes through the seepage holes 111 of the contact layer 11, effectively maintaining the moisture of the concrete surface. When the temperature is too low, antifreeze can be added to the collection pool to prevent the liquid from freezing and ensure a stable water supply to the water supply system 6.

[0037] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A spray curing device for concrete panel pouring, characterized in that, It includes a heat and moisture preservation and maintenance composite coil and a water supply system. The heat and moisture preservation and maintenance composite coil includes a contact layer, a spraying layer, a reinforcing layer, a heat preservation layer and a protective layer which are connected in sequence from the inside to the outside. The spraying layer includes a plurality of uniformly distributed spraying water pipes. On the side of the spraying water pipes opposite to the contact layer, a plurality of corresponding water spraying holes and water seepage holes are uniformly arranged respectively. The water supply system is connected to the plurality of spraying water pipes.

2. The concrete panel pouring spray curing device according to claim 1, characterized in that, One end of the nozzle of the spraying water pipe extends to the outside of the contact layer and is connected with a flow control valve through a quick connector. The other end of the flow control valve is connected to the water supply system, and the other end of the spraying water pipe is closed. A set of sensing components is arranged on the lower surface of the contact layer for each corresponding certain area. The sensing components are electrically connected to the flow control valves of the spraying water pipes within their corresponding areas. The flow control valves and the sensing components are electrically connected to a controller.

3. The concrete panel pouring spray curing device according to claim 2, characterized in that, The sensing components include a temperature sensor and a humidity sensor.

4. The concrete panel pouring spray curing device according to claim 1, characterized in that, The spraying water pipes are arranged in a continuous S-shaped curved shape and are formed by connecting alternately arranged straight pipe sections and transition sections. The transition sections are vertically connected to the straight pipe sections and the connection parts are smoothly transitioned.

5. A concrete panel pouring spray curing device according to claim 4, characterized in that, The water spraying holes are uniformly arranged on the spraying water pipes, and the distance between two adjacent water spraying holes is set to be 50 - 60 cm.

6. A concrete panel pouring spray curing device according to claim 2, characterized in that, The water supply system includes a water supply pipeline and a water inlet pipeline. The water inlet pipeline includes a main pipeline and a plurality of branch pipelines arranged on the main pipeline. The water inlet end of the water supply pipeline is connected to a water pump, and the water outlet end is connected to the main pipeline of the water inlet pipeline through a rotary joint. The end of the main pipeline is closed. The plurality of branch pipelines respectively correspond to the plurality of spraying water pipes, and the end of each branch pipeline is respectively connected to the other end of the flow control valve of the corresponding spraying water pipe.

7. A concrete panel pouring spray curing device according to claim 6, characterized in that, The main pipeline is formed by sequentially connecting multiple sections of the first water inlet pipes through multiple T-shaped joints. The branch pipelines are formed by the second water inlet pipes inserted into the side sockets of the T-shaped joints.

8. A concrete panel pouring spray curing device according to claim 1, characterized in that, 9. A concrete panel pouring spray curing device according to claim 1, characterized in that, The contact layer and the protective layer are made of polyethylene film, the reinforcing layer is made of geotextile, and the heat preservation layer is made of polyethylene foam. Tensile ring holes are arranged at the four perimeters of the heat and moisture preservation and maintenance composite coil.

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