Energy-saving mass concrete condensation curing integrated device and construction method thereof

Abstract

The application discloses an energy-saving mass concrete condensation curing integrated equipment and a construction method thereof, which comprises a water storage tank, a heat exchange pipe buried in the mass concrete, a curing pipe, a recovery tank and temperature sensors, wherein the water storage tank is provided with a water inlet, a water return outlet and a water outlet, and the water inlet is connected with a water inlet pipe; one end of the heat exchange pipe is connected with the water outlet through a water outlet pipeline, and the other end of the heat exchange pipe is connected with the water return outlet through a water return pipeline; the curing pipe is connected with one end of the water outlet pipeline close to the heat exchange pipe; the recovery tank is connected with the water outlet pipeline and the water return pipeline through a circulation pipeline; the temperature sensors are respectively arranged in the water return outlet, the water outlet and the recovery tank; electric valves are respectively arranged in the curing pipe, the heat exchange pipe and one end of the water outlet pipeline of the recovery tank; and a controller is signal-connected with the temperature sensors, a water pump and the electric valves. The application solves the problems of the existing mass concrete condensation equipment, such as passive heat dissipation by using the tank wall of the water storage tank, large volume of the water tank, large occupied space and low cooling efficiency.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to an energy-saving integrated equipment for large-volume concrete condensation curing and its construction method. Background Technology

[0002] The purpose of condensation equipment for large-volume concrete is to reduce the temperature difference between the core and surface of concrete (such as cast-in-place arches), thereby reducing the occurrence of temperature-induced cracks. Currently, a common solution is to use water as the circulating medium in a closed system. During the construction of the large-volume concrete, the water exchanges heat with the concrete. In the condensation equipment (often a water tank), the water passively exchanges heat with the air through the tank walls, thus lowering the core temperature of the concrete.

[0003] However, passive heat dissipation using the water tank wall is ineffective, and the water temperature in the circulation system will gradually rise, affecting the cooling efficiency of the core of the large-volume concrete. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, an energy-saving integrated condensation curing equipment for large-volume concrete and its construction method are provided to solve the problems of existing large-volume concrete condensation equipment that uses the walls of water storage tanks for passive heat dissipation, resulting in large water tank volumes, large space occupation, and low cooling efficiency.

[0005] To achieve the above objectives, an energy-saving integrated equipment for large-volume concrete condensation curing is provided, comprising:

[0006] A water storage tank for holding water, the water storage tank having an inlet, a return outlet and an outlet, the inlet being connected to an inlet pipe for conveying room temperature water;

[0007] A heat exchange tube is embedded in a large volume of concrete. One end of the heat exchange tube is connected to the water outlet through a water outlet pipe, and a water pump is installed on the water outlet pipe. The other end of the heat exchange tube is connected to the water return outlet through a water return pipe.

[0008] A curing pipeline for supplying curing water to large-volume concrete is connected to the end of the water outlet pipeline near the heat exchange pipe.

[0009] A recycling tank for use in water return maintenance is connected to the outflow pipe and the return pipe via a circulation pipeline;

[0010] Temperature sensors are installed in the return water inlet, the outflow water inlet, and the recycling tank, respectively;

[0011] Electric valves are installed at one end of the maintenance pipeline, the heat exchange pipeline, and the water discharge pipeline of the recovery tank;

[0012] The controller, connected to the temperature sensor, water pump, and electric valve, closes the valve on the inlet pipe and the electric valve on the curing pipeline when the temperature difference between the return and outlet water inlets exceeds a preset value, while simultaneously opening the electric valve on the heat exchange pipe and the water pump. When the temperature difference is less than the preset value, the controller maintains the open state of the electric valve on the heat exchange pipe and the water pump, while simultaneously opening the valve on the inlet pipe to introduce fresh ambient temperature water to lower the temperature of the water in the storage tank, and opening the electric valve on the curing pipeline to deliver curing water to the large-volume concrete to increase the surface temperature of the large-volume concrete, thereby reducing the temperature difference between the inner and outer layers of the large-volume concrete. (Circulation pipeline)

[0013] Furthermore, pressure stabilizing devices are installed on both the outflow pipe and the return pipe.

[0014] Furthermore, the pressure stabilizing device is a pressure stabilizing tank.

[0015] Furthermore, there are multiple large-volume concrete sections, and the two ends of the heat exchange pipes within the multiple large-volume concrete sections are respectively connected to the return water pipeline and the outflow water pipeline via branch pipes.

[0016] This invention provides a construction method for an energy-saving integrated equipment for large-volume concrete condensation curing, comprising the following steps:

[0017] When pouring large-volume concrete, heat exchange pipes are embedded in the large-volume concrete.

[0018] After the mass concrete has set, the controller keeps the valve of the inlet pipe and the electric valve of the curing pipeline closed, while opening the electric valve on the heat exchange pipe and the water pump to input room temperature water from the storage tank into the heat exchange pipe through the outlet pipe to absorb the heat of the inner layer of the mass concrete, thereby reducing the temperature of the inner layer of the mass concrete.

[0019] Temperature sensors inside the water inlet and outlet of the water storage tank collect the temperature.

[0020] The controller acquires the temperature inside the return water inlet and the outlet water inlet;

[0021] When the temperature difference between the return water inlet and the outlet water outlet is greater than a preset value, the controller maintains the valve of the inlet water pipe and the electric valve of the maintenance pipeline in the closed state, while simultaneously opening the electric valve on the heat exchange pipe and the water pump.

[0022] When the temperature difference is less than the preset value, the controller maintains the electric valve and water pump on the heat exchange pipe in the open state, simultaneously opens the valve on the inlet pipe to introduce fresh room temperature water to lower the temperature of the water in the storage tank, and opens the electric valve on the curing pipeline to deliver curing water to the large-volume concrete to increase the surface temperature of the large-volume concrete, thereby reducing the temperature difference between the inner and outer layers of the large-volume concrete. After curing the large-volume concrete, the curing water is recycled to the recycling tank, and the controller obtains the contents of the recycling tank. The temperature sensor collects the temperature. When the temperature of the curing water in the recycling tank is higher than the ambient temperature, the controller opens the electric valve on the circulation pipeline of the recycling tank, and the curing water is supplied to the large-volume concrete again through the curing pipeline to increase the surface temperature of the large-volume concrete and decrease the temperature of the curing water in the recycling tank until the temperature in the recycling tank is close to the ambient temperature. Then, the controller closes the electric valve on the circulation pipeline of the recycling tank and opens the electric valve on the circulation pipeline to recycle the curing water in the recycling tank back to the storage tank through the return water pipeline.

[0023] The beneficial effects of this invention are that the energy-saving integrated cooling and curing equipment for large-volume concrete can discharge superheated circulating water and introduce ambient temperature tap water, thereby actively reducing the temperature of the circulating water. The superheated circulating water is then used for curing the large-volume concrete and subsequently recycled back to a storage tank for reuse. This not only increases the surface temperature of the concrete, reducing the temperature difference between the inside and outside of the concrete, but also saves water resources, meeting green energy-saving and environmental protection requirements. Compared to traditional equipment, the storage tank of this equipment is smaller in volume and occupies less space. It can connect multiple construction sections of large-volume concrete, resulting in high cooling efficiency and further reducing the occurrence of temperature difference cracks in the concrete. Attached Figure Description

[0024] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the energy-saving large-volume concrete condensation curing integrated equipment according to an embodiment of the present invention. Detailed Implementation

[0026] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Reference Figure 1 As shown, the present invention provides an energy-saving integrated equipment for large-volume concrete condensation curing, comprising: a water storage tank 1, a heat exchange pipe 2, a temperature sensor d, a curing pipeline 3, an electric valve 4, a recovery box 7, and a controller.

[0029] In this embodiment, the water storage tank 1 is used to hold water. Initially, the water is at room temperature. The water storage tank 1 has an inlet a, an outlet b, and an outlet c. Inlet a is connected to an inlet pipe. The inlet pipe is used to deliver room temperature water. When the water level in the storage tank decreases, room temperature water can be introduced through the inlet pipe to maintain the water level in the storage tank.

[0030] The heat exchange pipe 2 is embedded in a large volume of concrete 6. One end of the heat exchange pipe 2 is connected to the water outlet c via the water outlet pipe 21. A water pump 23 is installed on the water outlet pipe 21. The other end of the heat exchange pipe is connected to the water return outlet b via the water return pipe 22.

[0031] In this embodiment, the recycling tank 7 is connected to the outflow pipe and the return pipe via a circulation pipeline. The recycling tank 7 is used for recycling maintenance water.

[0032] Electric valves are installed at one end of the maintenance pipeline, heat exchange pipeline, and water discharge pipeline of the recovery tank.

[0033] Temperature sensors d are installed in the return water inlet b, the outflow water inlet c, and the recycling tank, respectively.

[0034] Temperature sensor d at return water inlet b is used to collect the temperature value of the water in the return water pipe.

[0035] Temperature sensor d at water outlet c is used to collect the temperature value of the water in the water outlet pipeline.

[0036] The temperature sensor d inside the recycling bin 7 is used to collect the temperature value of the maintenance water inside the recycling bin.

[0037] The curing pipeline 3 is connected to the end of the drain pipeline 21 near the heat exchange pipe 2. The curing pipeline 3 is used to supply curing water to the large-volume concrete 6. In this embodiment, the function of the curing pipeline is to output the higher-temperature water from the drain pipeline for curing the large-volume concrete to increase the surface temperature of the large-volume concrete and reduce the temperature difference between the inner and outer layers of the large-volume concrete.

[0038] Electric valves 4 are installed at one end of the curing pipeline 3, heat exchange pipeline 2, recycling tank circulation pipeline 31, and circulation pipeline 32. In this embodiment, the electric valves are ball valves. When it is necessary to open the curing pipeline, the valves on the curing pipeline are opened to discharge the curing water. After curing the large-volume concrete, the curing water is recycled to the recycling tank 7. A temperature sensor d is installed inside the recycling tank 7 to collect the temperature of the curing water inside the recycling tank.

[0039] The controller signal is connected to temperature sensor d, water pump 23, and electric valve 4. The controller acquires the temperature values ​​of the water in the outflow pipe, return pipe, and recovery tank, and performs corresponding mode control based on the temperature difference between the outflow pipe and return pipe and the temperature of the recovery tank.

[0040] Specifically, these include Mode 1, closed loop mode, and Mode 2, open mode.

[0041] Mode 1, Closed Loop Mode:

[0042] When the temperature difference between the return port b and the outlet c exceeds a preset value, the controller closes the valve of the inlet pipe and the electric valve 4 of the maintenance pipe 3, while simultaneously opening the electric valve 4 on the heat exchange pipe 2 and the water pump 23.

[0043] Mode 2, Open Mode:

[0044] When the temperature difference between the return port b and the outlet c is less than the preset value, the controller keeps the electric valve 4 on the heat exchange pipe 2 and the water pump 23 open. Simultaneously, it opens the valve on the inlet pipe to introduce fresh room-temperature water to lower the temperature of the water in the storage tank 1, and opens the electric valve 4 on the curing pipeline 3 to deliver curing water to the bulk concrete 6 through the curing pipeline 3, thereby increasing the surface temperature of the bulk concrete and reducing the temperature difference between the inner and outer layers of the bulk concrete. The curing water is then recycled to the recycling tank 7 after curing the bulk concrete. When the temperature of the curing water in the recycling tank 7 is higher than room temperature, the controller opens the electric valve 4 on the circulation pipeline 31 of the recycling tank, again delivering curing water to the bulk concrete 6 through the curing pipeline 3 to increase the surface temperature of the bulk concrete and decrease the temperature of the curing water in the recycling tank 7 until the temperature in the recycling tank 7 approaches room temperature. The controller closes the electric valve on the circulation pipe 31 of the recycling bin and simultaneously opens the electric valve 4 on the circulation pipe 32, allowing the maintenance water in the recycling bin 7 to be reintroduced into the water storage tank 1 for recycling through the return water pipe 22. In this embodiment, the preset temperature is 15℃.

[0045] As a preferred embodiment, pressure stabilizing devices 5 are installed on the outflow pipe 21 and the return pipe 22 respectively.

[0046] In this embodiment, the pressure stabilizing device 5 is a pressure stabilizing tank, whose main function is to ensure the stability of water pressure.

[0047] In this embodiment, the energy-saving integrated condensing curing equipment for large-volume concrete of the present invention can be used for condensing curing of multiple large-volume concrete structures. The two ends of the heat exchange pipes 2 in the multiple large-volume concrete structures are respectively connected to the return water pipe 22 and the drain water pipe 21 through branch pipes.

[0048] This invention provides a construction method for an energy-saving integrated equipment for large-volume concrete condensation curing, comprising the following steps:

[0049] S1. When pouring large-volume concrete, heat exchange pipe 2 is embedded in the large-volume concrete.

[0050] S2. After the final setting of the large-volume concrete, the controller keeps the valve of the water inlet pipe and the electric valve 4 of the curing pipeline 3 closed, while opening the electric valve 4 on the heat exchange pipe 2 and the water pump 23, so that the room temperature water in the water storage tank 1 is input into the heat exchange pipe 2 through the water outlet pipe 21 to absorb the heat of the inner layer of the large-volume concrete, thereby reducing the temperature of the inner layer of the large-volume concrete.

[0051] In this embodiment, in the initial state of the energy-saving large-volume concrete condensation curing integrated equipment of the present invention, the water storage tank is filled with clean water or tap water through the water inlet pipe. After the water storage tank is filled with water, the valve of the water inlet pipe is closed, and the electric valve of the curing pipeline is closed.

[0052] S3, the temperature is collected by temperature sensors inside the return water inlet b and the outlet water inlet c of the water storage tank 1.

[0053] S4. The controller obtains the temperature inside the return water inlet b and the outlet water inlet c.

[0054] S5. When the temperature difference between the return port b and the outlet c is greater than a preset value, the controller maintains the valve of the inlet pipe and the electric valve 4 of the maintenance pipeline 3 in the closed state, and at the same time opens the electric valve 4 on the heat exchange pipe 2 and the water pump 23.

[0055] S6. When the temperature difference is less than the preset value, the controller maintains the electric valve 4 on the heat exchange pipe 2 and the water pump 23 in the open state. Simultaneously, it opens the valve on the inlet pipe to introduce fresh room-temperature water to lower the water temperature in the storage tank 1, and opens the electric valve 4 on the curing pipeline 3 to deliver curing water to the bulk concrete 6 through the curing pipeline 3 to increase the surface temperature of the bulk concrete, thus reducing the temperature difference between the inner and outer layers of the bulk concrete. After curing the bulk concrete, the curing water is recycled to the recycling tank 7. The controller obtains the temperature collected by the temperature sensor d inside the recycling tank 7. When the temperature of the curing water in the recycling tank 7 is higher than room temperature, the controller opens the electric valve 4 on the circulation pipeline 31 of the recycling tank, again delivering curing water to the bulk concrete 6 through the curing pipeline 3 to increase the surface temperature of the bulk concrete and lower the temperature of the curing water in the recycling tank 7 until the temperature inside the recycling tank 7 approaches room temperature. The controller closes the electric valve on the circulation pipe 31 of the recycling bin and opens the electric valve 4 on the circulation pipe 32, so that the maintenance water in the recycling bin 7 is reintroduced into the water storage tank 1 through the return water pipe 22.

[0056] The installation of the energy-saving integrated cooling and curing equipment for large-volume concrete of this invention is carried out simultaneously with the reinforcement binding of the large-volume concrete construction section, and heat exchange pipes are embedded at the same time as the reinforcement binding. The equipment is not turned on within 12 hours after the concrete pouring is completed to ensure smooth final and initial setting of the concrete. After 12 hours, the equipment is turned on and adjusted to Mode 1. As the chemical reaction of the hardening concrete releases heat and heat exchange occurs between the circulating water and the large volume, while the efficiency of heat exchange between the water tank and the air is relatively low, the temperature of the circulating water gradually rises. The temperature difference between the circulating water and the core of the large-volume concrete gradually decreases until it is less than 15 degrees Celsius, at which point the equipment is adjusted to Mode 2 to slow down the further rise in the circulating water temperature.

[0057] This invention relates to an energy-saving integrated cooling and curing system for large-volume concrete. The system discharges superheated circulating water and introduces ambient temperature tap water, actively reducing the temperature of the circulating water. The superheated circulating water is then used for curing the large-volume concrete and subsequently recycled back to a storage tank. This not only increases the surface temperature of the concrete, reducing the temperature difference between the inside and outside of the concrete, but also conserves water resources, meeting green energy-saving and environmental protection requirements. Compared to traditional equipment, the storage tank of this system is smaller in volume and occupies less space. It can connect multiple construction sections of large-volume concrete, resulting in high cooling efficiency and reducing the formation of temperature-induced cracks in the concrete.

[0058] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An energy-saving integrated equipment for large-volume concrete condensation curing, characterized in that, include: A water storage tank for holding water, the water storage tank having an inlet, a return outlet and an outlet, the inlet being connected to an inlet pipe for conveying room temperature water; A heat exchange tube is embedded in a large volume of concrete. One end of the heat exchange tube is connected to the water outlet through a water outlet pipe, and a water pump is installed on the water outlet pipe. The other end of the heat exchange tube is connected to the water return outlet through a water return pipe. A curing pipeline for supplying curing water to large-volume concrete is connected to the end of the water outlet pipeline near the heat exchange pipe. A recycling tank for use in water return maintenance is connected to the outflow pipe and the return pipe via a circulation pipeline; Temperature sensors are installed in the return water inlet, the outflow water inlet, and the recycling tank, respectively; Electric valves are installed at one end of the maintenance pipeline, the heat exchange pipeline, and the water discharge pipeline of the recovery tank; The controller is connected to the temperature sensor, the water pump, and the electric valve. When the temperature difference between the return port and the outlet port is greater than a preset value, the controller closes the valve of the inlet pipe and the electric valve of the curing pipeline, while simultaneously opening the electric valve on the heat exchange pipe and the water pump. When the temperature difference is less than the preset value, the controller maintains the electric valve on the heat exchange pipe and the water pump in the open state, while simultaneously opening the valve of the inlet pipe to introduce new room temperature water to lower the temperature of the water in the storage tank, and opening the electric valve of the curing pipeline to deliver curing water to the large-volume concrete through the curing pipeline to increase the surface temperature of the large-volume concrete, thereby reducing the temperature difference between the inner layer temperature and the surface temperature of the large-volume concrete. The number of large-volume concretes is multiple, and the two ends of the heat exchange pipes within the multiple large-volume concretes are respectively connected to the return water pipeline and the outflow water pipeline via branch pipes.

2. The energy-saving integrated equipment for large-volume concrete condensation curing according to claim 1, characterized in that, Pressure stabilizing devices are installed on the outflow pipe and the return pipe respectively.

3. The energy-saving integrated equipment for large-volume concrete condensation curing according to claim 2, characterized in that, The pressure stabilizing device is a pressure stabilizing tank.

4. A construction method for an energy-saving integrated cold-curing equipment for large-volume concrete as described in any one of claims 1 to 3, characterized in that, Includes the following steps: When pouring large-volume concrete, heat exchange pipes are embedded in the large-volume concrete. After the mass concrete has set, the controller keeps the valve of the inlet pipe and the electric valve of the curing pipeline closed, while opening the electric valve on the heat exchange pipe and the water pump to input room temperature water from the storage tank into the heat exchange pipe through the outlet pipe to absorb the heat of the inner layer of the mass concrete, thereby reducing the temperature of the inner layer of the mass concrete. Temperature sensors inside the water inlet and outlet of the water storage tank collect the temperature. The controller acquires the temperature inside the return water inlet and the outlet water inlet; When the temperature difference between the return water inlet and the outlet water outlet is greater than a preset value, the controller maintains the valve of the inlet water pipe and the electric valve of the maintenance pipeline in the closed state, while simultaneously opening the electric valve on the heat exchange pipe and the water pump. When the temperature difference is less than the preset value, the controller maintains the electric valve and water pump on the heat exchange pipe in the open state, simultaneously opens the valve on the inlet pipe to introduce fresh room temperature water to lower the temperature of the water in the storage tank, and opens the electric valve on the curing pipeline to deliver curing water to the large-volume concrete to increase the surface temperature of the large-volume concrete, thereby reducing the temperature difference between the inner and outer layers of the large-volume concrete. After curing the large-volume concrete, the curing water is recycled to the recycling tank, and the controller obtains the contents of the recycling tank. The temperature sensor collects the temperature. When the temperature of the curing water in the recycling tank is higher than the ambient temperature, the controller opens the electric valve on the circulation pipeline of the recycling tank, and the curing water is supplied to the large-volume concrete again through the curing pipeline to increase the surface temperature of the large-volume concrete and decrease the temperature of the curing water in the recycling tank until the temperature in the recycling tank is close to the ambient temperature. Then, the controller closes the electric valve on the circulation pipeline of the recycling tank and opens the electric valve on the circulation pipeline to recycle the curing water in the recycling tank back to the storage tank through the return water pipeline.

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