A device for cooling and reducing the temperature of ultra-large slewing bridge piers.

Abstract

This utility model relates to a device for cooling and reducing the temperature of a super-large slewing bridge pier, belonging to the field of pier cooling and reducing technology. It includes a cooling box with three water pumps installed on the inner bottom wall. The output end of each water pump is connected to a liquid delivery pipe. The ends of the three liquid delivery pipes furthest from the water pumps pass through the cooling box and are connected to a first diversion pipe. Three first solenoid valves and two second solenoid valves are respectively installed on the upper surface of the first diversion pipe. Three liquid inlet pipes are connected to the outer surface of the first diversion pipe. The pier body is located on the left side of the cooling box. This utility model, through the combination of three water pumps, the first diversion pipe, and the first solenoid valves, can independently control the water flow to the three second diversion pipes connected to the inside of the pier body. This design breaks the limitations of single-pump control and allows for flexible adjustment of the water flow speed and flow rate of each liquid inlet pipe according to the heat dissipation needs of different areas of the pier, ensuring a balanced cooling rate for all parts of the pier.

Description

Technical Field

[0001] This utility model belongs to the field of bridge pier cooling and temperature reduction, specifically, it relates to a device for cooling and temperature reduction of the bridge pier of an ultra-large slewing bridge. Background Technology

[0002] As the connecting hub between the superstructure (such as beams and piers) and the substructure (such as piles and ground), the abutment of a super-large swing bridge must bear the enormous vertical loads (including bridge deck pavement, vehicle loads, and structural self-weight) and horizontal loads (such as wind force, seismic force, and centrifugal force) transmitted from the superstructure. Through its massive volume and robust structure, it evenly and stably transfers these loads to the piles and ground, ensuring that the load distribution meets mechanical requirements and preventing settlement or damage to the foundation due to excessive local stress. This provides solid support for the overall bridge structure. Super-large swing bridges typically span complex terrains such as railways, highways, and rivers, where the stress conditions are complex and variable. The abutment, through its rigid connection with the piles, forms an integral load-bearing structure that effectively resists additional stresses generated during bridge operation due to temperature changes, vehicle braking, and water flow impact, enhancing the bridge's anti-overturning capacity and overall stability.

[0003] Regarding the circulating water system in the construction process of super-large swing bridge piers, existing technologies mostly use a single water pump for control, which makes it difficult to accurately adjust the water flow rate in different areas, resulting in uneven cooling rates and easily causing excessive temperature differences between the inside and outside of the pier concrete. Therefore, this utility model provides a device for cooling and reducing the temperature of super-large swing bridge piers to solve the above problems. Utility Model Content

[0004] The technical problem this utility model aims to solve is to overcome the shortcomings of existing technologies and provide a device for cooling and reducing the temperature of ultra-large rotating bridge piers. To address the technical problem of uneven cooling rates caused by the inability of a single water pump to accurately adjust the water flow rate in different areas, the basic concept of this utility model is as follows:

[0005] A device for cooling and reducing the temperature of a super-large slewing bridge abutment includes a cooling tank. Three water pumps are installed on the inner bottom wall of the cooling tank. The output end of each water pump is connected to a liquid delivery pipe. The ends of the three liquid delivery pipes away from the water pumps penetrate the cooling tank and are connected to a first branch pipe. Three first solenoid valves and two second solenoid valves are respectively installed on the upper surface of the first branch pipe. Three liquid inlet pipes are connected to the outer surface of the first branch pipe. A abutment body is located on the left side of the cooling tank. Three second branch pipes and three first manifolds are respectively arranged inside the abutment body. Cooling pipes are connected to the outer surfaces of the outer surfaces of each group of second branch pipes and first manifolds. The ends of each group of liquid inlet pipes away from the first branch pipes penetrate the abutment body and are connected to the outer surface of the second branch pipes. A connecting pipe is connected to the outer surface of each first manifold. The ends of the three connecting pipes away from the first manifolds penetrate the abutment body and are connected to a second manifold. An outlet pipe is connected to the outer surface of the second manifold.

[0006] As a preferred technical solution of this application, a fixing plate is installed on the outer surface of the cooling box, a filter box is installed on the upper surface of the fixing plate, and the end of the liquid outlet pipe away from the second manifold is connected to the outer surface of the filter box.

[0007] As a preferred technical solution of this application, two filter plates are installed inside the filter box, and a connecting pipe is connected to the outer surface of the filter box. The end of the connecting pipe away from the filter box is connected to the outer surface of the cooling box.

[0008] As a preferred technical solution of this application, the upper surface of the cooling box is connected to a liquid injection pipe, the outer surface of the cooling box is connected to a liquid discharge pipe, and a valve is installed on the outer surface of the liquid discharge pipe.

[0009] As a preferred technical solution of this application, a control box is installed on the outer surface of the cooling box, and a door is hinged to the outer surface of the control box.

[0010] As a preferred technical solution of this application, a first extension rod is installed on the outer surface of the second shunt tube and the outer surface of the first collector tube, and a first temperature detection module is installed on the end of each set of first extension rods that are close to each other.

[0011] As a preferred technical solution of this application, each set of cooling pipes has an installation block installed on its outer surface, and each installation block has a second extension rod installed on its left and right sides. Each second extension rod has a second temperature detection module installed at the end away from the installation block.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This invention, through the combination of three water pumps, a first diversion pipe, and a first solenoid valve, enables independent control of the water flow through three second diversion pipes connected to the interior of the foundation. This design breaks the limitations of single-pump control and allows for flexible adjustment of the water flow rate and volume of each inlet pipe according to the heat dissipation needs of different areas of the foundation. This ensures a balanced cooling rate across all parts of the foundation, effectively avoiding excessive internal and external temperature differences caused by localized excessively rapid or slow cooling, and reducing the risk of concrete cracking. Attached Figure Description

[0014] Figure 1 This is the left view of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of the cooling box in this utility model;

[0016] Figure 3 This is a top view of the present invention;

[0017] Figure 4 This is a schematic diagram of the internal structure of the support platform body in this utility model;

[0018] Figure 5 This is the right view of the present invention.

[0019] In the diagram: 1. Cooling tank; 2. Water pump; 3. Infusion pipe; 4. First branch pipe; 5. First solenoid valve; 6. Inlet pipe; 7. Second branch pipe; 8. Cooling pipe; 9. First manifold; 10. Second manifold; 11. Outlet pipe; 12. Fixing plate; 13. Filter box; 14. Filter plate; 15. Connecting pipe; 16. Injection pipe; 17. Drain pipe; 18. Valve; 19. Control box; 20. Box door; 21. Mounting block; 22. First extension rod; 23. First temperature detection module; 24. Second extension rod; 25. Second temperature detection module; 26. Support body; 27. Second solenoid valve; 28. Connecting pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0021] like Figures 1 to 5As shown, a device for cooling and reducing the temperature of a super-large swing bridge pier includes a cooling tank 1. Three water pumps 2 are installed on the inner bottom wall of the cooling tank 1. The output end of each water pump 2 is connected to a liquid delivery pipe 3. The ends of the three liquid delivery pipes 3 furthest from the water pumps 2 pass through the cooling tank 1 and are connected to a first diversion pipe 4. Three first solenoid valves 5 and two second solenoid valves 27 are respectively installed on the upper surface of the first diversion pipe 4. Three liquid inlet pipes 6 are connected to the outer surface of the first diversion pipe 4. A pier body 26 is located on the left side of the cooling tank 1. The interior of the pier body 26 is divided into... The system is equipped with three second branch pipes 7 and three first manifolds 9. The outer surfaces of the second branch pipes 7 and the first manifolds 9 are connected to cooling pipes 8. The end of each inlet pipe 6 away from the first branch pipe 4 passes through the base body 26 and is connected to the outer surface of the second branch pipe 7. The outer surface of each first manifold 9 is connected to a connecting pipe 28. The ends of the three connecting pipes 28 away from the first manifold 9 pass through the base body 26 and are connected to the second manifold 10. The outer surface of the second manifold 10 is connected to an outlet pipe 11.

[0022] The cooling box 1 has a fixed plate 12 installed on its outer surface, and a filter box 13 installed on the upper surface of the fixed plate 12. The end of the outlet pipe 11 away from the second manifold 10 is connected to the outer surface of the filter box 13. Two filter plates 14 are installed inside the filter box 13. The outer surface of the filter box 13 is connected to a connecting pipe 15. The end of the connecting pipe 15 away from the filter box 13 is connected to the outer surface of the cooling box 1. After the coolant absorbs the heat of hydration of the concrete in the cooling pipe 8, it flows into the first manifold 9, and then enters the filter box 13 through the connecting pipe 28, the second manifold 10, and the outlet pipe 11. The two filter plates 14 in the filter box 13 filter the returning coolant to remove any impurities. The purified coolant flows back to the cooling box 1 through the connecting pipe 15 to complete one cycle.

[0023] The upper surface of the cooling tank 1 is connected to the injection pipe 16, the outer surface of the cooling tank 1 is connected to the drain pipe 17, the outer surface of the drain pipe 17 is equipped with a valve 18, the outer surface of the cooling tank 1 is equipped with a control box 19, and the outer surface of the control box 19 is hinged with a door 20. Before the device is put into operation, sufficient coolant can be injected into the cooling tank 1 through the injection pipe 16 for system use. If the coolant needs to be replaced, the old liquid can be drained by opening the valve 18 on the drain pipe 17.

[0024] The outer surfaces of the second diversion pipe 7 and the first collection pipe 9 are each equipped with a first extension rod 22. A first temperature detection module 23 is installed at the end of each set of first extension rods 22 that is close to each other. An installation block 21 is installed on the outer surface of each set of cooling pipes 8. A second extension rod 24 is installed on both sides of each installation block 21. A second temperature detection module 25 is installed at the end of each second extension rod 24 that is furthest from the installation block 21. Through the extension action of the first extension rods 22 and 24, the modules penetrate into the corresponding areas of the concrete inside the foundation body 26, rather than merely adhering to the surface of the cooling pipes 8. This allows the first temperature detection modules 23 and 25 to contact different locations around the cooling pipes 8. This design effectively avoids the limitations of temperature detection modules that are only close to pipes or local surfaces. The first temperature detection module 23 and the second temperature detection module 25 can accurately capture the true temperature of concrete in different depth areas of the foundation body 26, effectively ensuring that the internal temperature of the concrete, the internal surface temperature difference, and the surface temperature difference with the atmosphere are within the specified range, thereby ensuring the stability and durability of the foundation structure. The first temperature detection module 23 and the second temperature detection module 25 are specifically modeled as DS18B20 digital temperature sensors. This model of sensor is small in size and can be easily deployed inside the concrete through the first extension rod 22 and the second extension rod 24. Moreover, the waterproof encapsulation can resist the compression and humid environment during the concrete pouring process.

[0025] Working principle: During operation, the cooling tank 1 provides coolant to the entire system. When the foundation body 26 is being poured in layers, targeted cooling control can be achieved through the control box 19. For example, when pouring the bottom layer of concrete, the water pump 2 of the corresponding bottom layer cooling circuit is turned on through the control box 19. The water pump 2 pumps the coolant in the cooling tank 1 into the first distribution pipe 4. At this time, the corresponding first solenoid valve 5 is opened, and the coolant is delivered to the second distribution pipe 7 of the bottom layer through the inlet pipe 6. Then, it is distributed to the cooling pipe 8 of the bottom layer through the second distribution pipe 7. The coolant flows in the cooling pipe 8 and exchanges heat with the concrete of the bottom layer of the foundation body 26. After absorbing the heat of hydration, it flows into the first manifold 9, then enters the second manifold 10 through the connecting pipe 28, and finally returns through the outlet pipe 11 and the filter box 13. The coolant flows to the cooling tank 1, completing the cooling cycle of the bottom layer. Similarly, when pouring the middle and upper layers of concrete, the water pumps 2 and the corresponding first solenoid valves 5 of the corresponding middle and upper layer cooling circuits are turned on to achieve precise cooling of the middle and upper layer concrete. When the temperature of each area of ​​the foundation body 26 drops to a reasonable range, energy-saving operation adjustment can be performed. At this time, two of the water pumps 2 and the corresponding two first solenoid valves 5 are turned off, leaving only one water pump 2 running, while opening two second solenoid valves 27. In this way, the single running water pump 2 pumps the coolant into the first diversion pipe 4, and the coolant circulates throughout the entire cooling pipe 8 system through the opened second solenoid valve 27. This can maintain continuous cooling of the foundation body 26 without the need for multiple water pumps 2 to work at the same time, thereby effectively saving power resources.

Claims

1. A device for cooling and reducing the temperature of a super-large rotating bridge pier, characterized in that, The device includes a cooling tank. Three water pumps are installed on the inner bottom wall of the cooling tank. The output end of each water pump is connected to a delivery pipe. The ends of the three delivery pipes away from the water pumps pass through the cooling tank and are connected to a first distribution pipe. Three first solenoid valves and two second solenoid valves are respectively installed on the upper surface of the first distribution pipe. Three inlet pipes are connected to the outer surface of the first distribution pipe. A support body is provided on the left side of the cooling tank. Three second distribution pipes and three first manifolds are respectively arranged inside the support body. Cooling pipes are connected to the outer surfaces of the second distribution pipes and the first manifolds. The ends of the inlet pipes away from the first distribution pipes pass through the support body and are connected to the outer surface of the second distribution pipes. A connecting pipe is connected to the outer surface of each first manifold. The ends of the three connecting pipes away from the first manifolds pass through the support body and are connected to a second manifold. An outlet pipe is connected to the outer surface of the second manifold.

2. The device for cooling and reducing the temperature of a super-large rotating bridge pier as described in claim 1, characterized in that, A fixing plate is installed on the outer surface of the cooling box, and a filter box is installed on the upper surface of the fixing plate. The end of the liquid outlet pipe away from the second manifold is connected to the outer surface of the filter box.

3. The device for cooling and reducing the temperature of an ultra-large rotating bridge pier as described in claim 2, characterized in that, The filter box has two filter plates installed inside, and a connecting pipe is connected to the outer surface of the filter box. The end of the connecting pipe away from the filter box is connected to the outer surface of the cooling box.

4. The device for cooling and reducing the temperature of an ultra-large rotating bridge pier as described in claim 1, characterized in that, The upper surface of the cooling tank is connected to an injection pipe, the outer surface of the cooling tank is connected to a drain pipe, and a valve is installed on the outer surface of the drain pipe.

5. The device for cooling and reducing the temperature of an ultra-large rotating bridge pier as described in claim 1, characterized in that, A control box is mounted on the outer surface of the cooling box, and a door is hinged to the outer surface of the control box.

6. The device for cooling and reducing the temperature of a super-large rotating bridge pier as described in claim 1, characterized in that, Both the outer surface of the second shunt tube and the outer surface of the first collector tube are equipped with first extension rods, and a first temperature detection module is installed at the end of each set of first extension rods that are close to each other.

7. The device for cooling and reducing the temperature of a super-large rotating bridge pier as described in claim 1, characterized in that, Each set of cooling pipes has an installation block mounted on its outer surface. Each installation block has a second extension rod mounted on its left and right sides. Each second extension rod has a second temperature detection module mounted on its end away from the installation block.

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