Massive concrete pouring cooling structure

Abstract

The utility model relates to a mass concrete pouring cooling structure belongs to the construction engineering construction technical field, this mass concrete pouring cooling structure, including mass concrete mechanism and circulating component, mass concrete mechanism includes base, circulating component includes horizontal circulating pump and water sump, the water sump is placed in the one side of base, the utility model discloses through the structural design of circulating component can realize water resource utilization function, realizes water -saving performance, and through the structural design of even component in the water circulation process, can accelerate the cooling work to the water after recovery, guarantees the water circulation cooling efficiency of later period, cooperation temperature sensor can also realize temperature monitoring function in real time, finally cooperation horizontal circulating pump realizes the linkage control of flow and water temperature, is convenient for the flow function of water circulation of cooperation horizontal circulating pump realization to the high temperature of temperature sensor detection of later period, promotes the heat absorption efficiency of later period.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically relating to a cooling structure for large-volume concrete pouring. Background Technology

[0002] Mass concrete typically refers to concrete with a minimum cross-sectional dimension exceeding 1m and a high hydration heat accumulation. The quality of its pouring directly determines the structural safety and durability. After mass concrete is poured, the cement hydration reaction releases a large amount of heat, causing the internal temperature to rise rapidly. Meanwhile, the surface heat is easily dissipated into the air, creating a temperature difference between the inside and outside. This temperature difference can induce shrinkage stress in the concrete. When the stress exceeds the tensile strength of the concrete, it can easily produce through cracks, seriously affecting the structural strength and service life. Therefore, it is necessary to design a cooling structure for mass concrete pouring.

[0003] Traditional large-volume concrete construction suffers from technical pain points such as the separation of temperature measurement and cooling, lag in manual observation, untimely cooling response, and serious water waste. Current technologies often achieve cooling by sprinkling water on the concrete surface, which consumes a large amount of water, increasing water resource consumption. Furthermore, the open water cooling cycle results in the direct discharge of cooling water after absorbing heat, leading to low water resource utilization per cycle and the need for continuous replenishment of fresh water, further increasing water waste. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonably designed cooling structure for large-volume concrete pouring in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A cooling structure for large-volume concrete pouring includes a large-volume concrete mechanism and a circulation component. The large-volume concrete mechanism includes a base, and the circulation component includes a horizontal circulation pump and a water tank. The water tank is located on one side of the base, and the horizontal circulation pump is located at one end of the water tank and connected to its interior. The output end of the horizontal circulation pump is fixedly connected to the interior of the large-volume concrete mechanism. A uniform component extending into the interior of the water tank is fixedly connected to the top of the water tank, and the inlet end of the uniform component is connected to the drain end inside the large-volume concrete mechanism.

[0007] As a further optimization of this utility model, a concrete steel frame is bundled and erected on the top of the base, and a cooling pipe is laid inside each layer of the concrete steel frame, and a temperature sensor is fixedly installed inside each layer of the concrete steel frame.

[0008] As a further optimization of this utility model, a wind-cooling mechanism is threadedly fixedly installed on the side of the water tank away from the base. The wind-cooling mechanism includes a mounting frame, a heat-conducting aluminum sheet, and a fan. The mounting frame is threadedly fixedly placed on the side of the water tank away from the base. Multiple heat-conducting aluminum sheets that are in contact with the outside of the water tank are fixedly installed inside the mounting frame on the side close to the water tank. A fan placed on the side of the heat-conducting aluminum sheet is threadedly fixedly installed inside the mounting frame on the side away from the water tank.

[0009] As a further optimization of this utility model, the output end of the top of the horizontal circulating pump is fixedly connected to an input pipe, one end of the input pipe is fixedly connected to a connecting pipe one that is connected to one end of a plurality of cooling pipes, the other end of the plurality of cooling pipes is fixedly connected to a connecting pipe two located behind the base, and the other end of the connecting pipe two is fixedly connected to an output pipe.

[0010] As a further optimization of this utility model, the uniform component includes a diversion chamber fixedly connected to the top of the water tank, an impeller is rotatably installed at the middle position inside the diversion chamber, the water inlet end of the diversion chamber is connected to the end of the output pipe away from the connecting pipe, a mixing rod is fixedly installed at the bottom of the impeller, and blades extending into the interior of the water tank are fixedly installed on the outside of the mixing rod.

[0011] As a further optimization of this utility model, the horizontal circulating pump includes a bottom mounting bracket, a pump body, an impeller, a pump shaft, a sealing device, inlet and outlet flanges, bearings, a coupling, and a suspension component. The bottom of the pump body and the impeller are both fixedly mounted at the top two ends of the bottom mounting bracket by threads. The suspension component is fixedly mounted on the outside of the impeller by threads and is also fixedly threaded on the top of the bottom mounting bracket. The pump shaft is fixedly mounted on the output end of the pump body by a coupling and extends into the inside of the impeller and is fixedly connected to it. The sealing device is fixedly mounted on the outside of the pump shaft and cooperates with the impeller. The inlet flange and the outlet flange are respectively opened at the end of the impeller away from the pump shaft and at the top.

[0012] The beneficial effects of this utility model are as follows: This utility model can realize the function of water resource utilization and achieve water-saving performance through the structural design of the circulation component. In addition, the uniform component structure design can accelerate the cooling of the recovered water during the water circulation process, ensuring the cooling efficiency of the water circulation in the later stage. At the same time, the temperature sensor can realize the function of real-time temperature monitoring. Finally, the horizontal circulation pump can realize the linkage control of flow rate and water temperature, which makes it easy to use the high temperature detected by the temperature sensor to realize the function of increasing the flow of water circulation in the later stage, thereby improving the heat absorption efficiency in the later stage. Attached Figure Description

[0013] Figure 1 This is a front view of the overall structure of this utility model;

[0014] Figure 2 This is a rear view of the overall structure of this utility model;

[0015] Figure 3 This is a bottom sectional view of the overall structure of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the concrete reinforcement of this utility model;

[0017] Figure 5 This is a three-dimensional structural diagram of the hybrid rod of this utility model;

[0018] Figure 6 This is a three-dimensional structural diagram of the drainage chamber of this utility model.

[0019] In the diagram: 1. Large-volume concrete structure; 100. Base; 101. Temperature sensor; 102. Concrete reinforcement frame; 103. Cooling pipe; 2. Circulation assembly; 200. Horizontal circulation pump; 201. Input pipe; 202. Connecting pipe one; 203. Connecting pipe two; 204. Output pipe; 205. Water tank; 206. Air-cooled cooling mechanism; 3. Uniform assembly; 300. Diversion chamber; 301. Blade; 302. Impeller one; 303. Mixing rod. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example 1

[0022] like Figure 1 , Figure 2 As shown, a large-volume concrete casting cooling structure includes a large-volume concrete mechanism 1, a circulation component 2, and a homogenizing component 3. The large-volume concrete mechanism 1 is the core cooling object, and a cooling carrier is constructed through a concrete steel frame 102 and a cooling pipe 103. The circulation component 2 provides the power for cooling water circulation, realizing the transportation of cooling water between the cooling pipe 103 and the water tank. The homogenizing component 3 ensures that the return cooling water is uniformly mixed with the water in the water tank. The air-cooled cooling mechanism 205 reduces the water temperature in the water tank. The three work together to form an integrated cooling system of "circulation transportation - internal cooling - water temperature regulation".

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the large-volume concrete structure 1 includes a base 100, a temperature sensor 101, a concrete reinforcement frame 102, and cooling pipes 103. The base 100 is the foundation site for concrete pouring, using a plain concrete pad with a flat and compacted surface. It is used to support the concrete reinforcement frame 102 and the poured large-volume concrete. The top of the base 100 is constructed with the concrete reinforcement frame 102 by binding wires. The reinforcement frame is constructed in layers according to the pouring thickness, forming the skeleton structure of the large-volume concrete. Inside each layer of the concrete reinforcement frame 102, cooling pipes 103 are laid and fixed by binding wires. The cooling pipes are arranged in an "S" shape to ensure that the cooling water can evenly cover the internal area of ​​the concrete. Inside each layer of the concrete reinforcement frame 102, temperature sensors 101 (PT100 platinum resistance sensors, measuring range -50℃-200℃) are evenly fixed and installed. The sensor probes are embedded in the gaps of the reinforcement frame, and the internal temperature can be monitored in real time after the concrete is poured. The data is transmitted to the external control system through wires.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the circulation assembly 2 includes a horizontal circulation pump 200, an input pipe 201, a first connecting pipe 202, a second connecting pipe 203, an output pipe 204, a water tank 205, and an air-cooled cooling mechanism 206. The water tank 205 is a rectangular stainless steel tank located on one side of the base 100, used for storing and regulating cooling water. The top of the water tank is equipped with a water inlet and a level gauge (not shown in the figure) to monitor the water level in real time. The horizontal circulation pump 200 is located at one end of the water tank 205, and its inlet flange is connected to the inside of the water tank 205 via a pipe, serving as the power source for cooling water circulation. The specific structure of the horizontal circulation pump 200 includes: a bottom mounting bracket (welded steel) for fixing the pump body; a cast iron pump body with internal flow channels; an impeller II for providing conveying power; a pump shaft for transmitting torque; and a mechanical seal. To prevent water leakage, the inlet and outlet flanges are matched with the pipes, and the bearings are rolling bearings to reduce friction. The coupling connects the pump shaft and the motor shaft, and the suspension component fixes the impeller and the motor. The outlet flange of the horizontal circulating pump 200 is fixedly connected to the input pipe 201, and the pipe diameter is the same as that of the cooling pipe 103. One end of the input pipe 201 is fixedly connected to the connecting pipe 202. The connecting pipe 202 is connected to one end of multiple cooling pipes 103 through branch pipes to realize the distribution of cooling water to each layer of cooling pipes. The other ends of multiple cooling pipes 103 are fixedly connected to the connecting pipe 203, which is placed behind the base 100. The other end of the connecting pipe 203 is fixedly connected to the output pipe 204. The end of the output pipe 204 away from the connecting pipe 203 is connected to the water inlet of the uniform component 3 to form a cooling water return channel.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the air-cooled cooling mechanism 206 is threadedly fixed to the side of the water tank 205 away from the base 100. It is used to reduce the cooling water in the water tank after it has been heated. Its structure includes: a mounting bracket (aluminum alloy frame) fixed to the outer wall of the water tank by bolts; multiple rectangular aluminum heat-conducting sheets attached to the outside of the water tank 205 by thermally conductive adhesive to absorb heat from the water in the water tank; and a fan (axial flow fan, power 500-1000W) threadedly fixed inside the mounting bracket on the side away from the water tank, blowing air towards the heat-conducting aluminum sheets to accelerate heat dissipation.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, the uniform assembly 3 includes a flow-inducing chamber 300, blades 301, impeller 302, and mixing rod 303. The flow-inducing chamber 300 is a cylindrical shell, and its bottom is fixedly connected to the top of the water tank 205 via a flange. The water inlet of the flow-inducing chamber is connected to the end of the outlet pipe 204 away from the connecting pipe 203 via a flange, receiving the heated cooling water returning from inside the concrete. Impeller 302 is rotatably installed in the middle of the inner side of the flow-inducing chamber 300. The guide blades on the outside of impeller 302 are radially distributed. After the returning cooling water enters the flow-inducing chamber, it impacts impeller 302 and generates rotation. The mixing rod 303 is a metal rod that is rotatably mounted on a bearing in the middle of the flow chamber 300. It is vertically set and the top of the mixing rod 303 is linked to the impeller 302. The rotation of the impeller 302 drives the mixing rod 303 to rotate. The bottom of the mixing rod 303 extends into the water chamber 205 and multiple arc-shaped blades 301 are fixedly installed at the bottom and distributed along the circumference of the mixing rod. The mixing rod 303 drives the blades 301 to rotate in the water chamber, which fully mixes the high-temperature cooling water returning with the low-temperature cooling water in the water chamber, avoids excessively high local water temperature, and ensures that the cooling water temperature entering the circulation pump is uniform.

[0027] It should be noted that this type of large-volume concrete pouring cooling structure can be constructed by first erecting a concrete steel frame 102, laying cooling pipes 103 at the designed spacing, fixing temperature sensors 101, ensuring that all components are firmly connected, injecting cooling water into the water tank 205 to the set level, checking the operation of the horizontal circulating pump 200 and the air-cooled cooling mechanism 206 to ensure there are no leaks or jamming issues, starting the horizontal circulating pump 200, and pressurizing the cooling water in the water tank 205 before it enters each layer of cooling pipes 103 through the input pipe 201 and connecting pipe one 202. When the cooling water flows in the cooling pipes 103, it absorbs the hydration heat generated after the concrete pouring and the temperature of the concrete center. After the water temperature rises, it flows into the uniform component 3 through the connecting pipe two 203 and the output pipe 204. The returning cooling water enters... The diversion chamber 300 and the impeller 302 drive the mixing rod 303 and blades 301 to rotate, mixing the high-temperature water with the cooling water in the water tank 205 evenly. At the same time, the fan of the air-cooled cooling mechanism 206 is started, and the heat of the water in the water tank is dissipated into the air through the heat-conducting aluminum fins, so that the water temperature is reduced and the cooling requirements of the circulation are met. After the large volume concrete circulation cooling is completed, the installation and connection work of the internal connecting pipe 202 and connecting pipe 203 of the circulation component 2 with the cooling pipe 103 can be removed. Then, the circulation component 2 and the above components can be moved away for later circulation use. At the same time, grouting can be carried out inside the cooling pipe 103. The grouting material is micro-expansion cement grout. After the grouting is completed, the pipe opening of the cooling pipe 103 is sealed with a plug or welded end cap in time to prevent water vapor from seeping in.

[0028] Temperature sensor 101 monitors the internal temperature of the concrete in real time. If the temperature exceeds 30°C, the speed of horizontal circulating pump 200 is increased. At the same time, uniform component 3 works in conjunction with air-cooled cooling mechanism 206 to ensure stable water temperature and prevent further expansion of temperature difference. During the cooling process, water level in water tank is monitored by level gauge. Water is added in time when the water level is too low to ensure stable operation of the circulation system.

[0029] This embodiment achieves efficient cooling of large-volume concrete through a closed-loop design of "circulation conveying - internal heat absorption - mixing and cooling". It also has the advantages of structural stability, convenient operation and precise temperature control, which can effectively control the temperature difference between the inside and outside of the concrete and ensure the construction quality of large-volume concrete.

[0030] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A cooling structure for large-volume concrete pouring, comprising a large-volume concrete mechanism (1) and a circulation component (2), characterized in that, The large-volume concrete structure (1) includes a base (100), and the circulation component (2) includes a horizontal circulation pump (200) and a water tank (205). The water tank (205) is located on one side of the base (100), and the horizontal circulation pump (200) is located at one end of the water tank (205) and connected to its interior. The output end of the horizontal circulation pump (200) is fixedly connected to the interior of the large-volume concrete structure (1). The top of the water tank (205) is fixedly connected to a uniform component (3) extending into its interior. The water inlet end of the uniform component (3) is connected to the drainage end inside the large-volume concrete structure (1).

2. The cooling structure for large-volume concrete pouring according to claim 1, characterized in that: The base (100) is topped with a concrete steel frame (102), and each layer of the concrete steel frame (102) is equipped with a cooling pipe (103), and each layer of the concrete steel frame (102) is equipped with a temperature sensor (101).

3. The cooling structure for large-volume concrete pouring according to claim 2, characterized in that: A cooling mechanism (206) is threadedly fixed to the side of the water tank (205) away from the base (100). The cooling mechanism (206) includes a mounting bracket, a heat-conducting aluminum sheet, and a fan. The mounting bracket is threadedly fixed to the side of the water tank (205) away from the base (100). Multiple heat-conducting aluminum sheets that are in contact with the outside of the water tank (205) are fixedly installed inside the mounting bracket on the side close to the water tank (205). A fan placed on the side of the heat-conducting aluminum sheet is threadedly fixed to the side of the mounting bracket inside the mounting bracket away from the water tank (205).

4. The cooling structure for large-volume concrete pouring according to claim 3, characterized in that: The output end of the horizontal circulating pump (200) is fixedly connected to an input pipe (201). One end of the input pipe (201) is fixedly connected to a connecting pipe (202) that is connected to one end of a plurality of cooling pipes (103). The other end of the plurality of cooling pipes (103) is fixedly connected to a connecting pipe (203) located behind the base (100). The other end of the connecting pipe (203) is fixedly connected to an output pipe (204).

5. The cooling structure for large-volume concrete casting according to claim 4, characterized in that: The uniform component (3) includes a diversion chamber (300) fixedly connected to the top of the water tank (205). An impeller (302) is rotatably installed at the middle position inside the diversion chamber (300). The water inlet end of the diversion chamber (300) is connected to the end of the output pipe (204) away from the connecting pipe (203). A mixing rod (303) is fixedly installed at the bottom of the impeller (302). A blade (301) extending into the interior of the water tank (205) is fixedly installed on the outside of the mixing rod (303).

6. The cooling structure for large-volume concrete casting according to claim 4, characterized in that: The horizontal circulating pump (200) includes a bottom mounting bracket, a pump body, an impeller, a pump shaft, a sealing device, inlet and outlet flanges, bearings, a coupling, and a suspension component. The bottom of the pump body and the impeller are both fixedly mounted at the top two ends of the bottom mounting bracket by threads. The suspension component is fixedly mounted on the outside of the impeller by threads and is also fixedly mounted on the top of the bottom mounting bracket by threads. The pump shaft is fixedly mounted on the output end of the pump body by a coupling and extends into the inside of the impeller and is fixedly connected to it. The sealing device is fixedly mounted on the outside of the pump shaft and cooperates with the impeller. The inlet flange and the outlet flange are respectively opened at the end of the impeller away from the pump shaft and the top.

Images