Delivery system for condensed water in steel box girder
By setting up a steel pipe drainage system inside the steel box girder, the corrosion problems caused by condensate and the problem of weakening stiffness of the steel box girder are solved, and efficient condensate discharge and protection of the steel box girder structure are achieved.
Patent Information
- Application Number
- CN202421520201.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The presence of condensate inside the steel box girder will accelerate the corrosion of the coating and shorten the service life. The many existing drainage holes will lead to weakening the rigidity of the steel box girder.
A steel pipe drainage system is adopted. The steel pipe is arranged along the length of the bottom plate, penetrates the U-rib, and drainage holes are set at intervals. Condensate is collected through the steel pipe and discharged to reduce the damage to the steel box beam structure.
Condensate water is collected through steel pipes and discharged, which reduces damage to the steel box girder structure, extends the service life of the steel box girder, and improves drainage efficiency.
Smart Images
Figure CN222758695U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of drainage structures, and in particular to a system for removing condensed water inside a steel box girder. Background Art
[0002] Inside the steel box girder, when the air humidity is high, due to the temperature difference, water droplets will form on the surface of the steel plate, which is the formation of condensation water. Condensation water is not good for the steel box girder. Condensation water will accelerate the corrosion rate of the steel box girder coating, thereby shortening the service life of the steel box girder coating and the steel box girder itself.
[0003] In order to avoid condensation inside the steel box girder, a dehumidification system can be used, but the cost is relatively high. Since the interior of the steel box girder is basically in a closed state all year round, air needs to be sent into the steel box girder only during maintenance, so the relatively simple and easy-to-implement natural discharge method can be used to discharge the condensation water.
[0004] The previous practice was to open a number of drainage holes between each bottom plate rib and on the bottom plate. This resulted in a large number of drainage holes, which significantly weakened the rigidity of the steel box girder, so this needs to be improved. Utility Model Content
[0005] In order to improve the problem that too many drainage holes are provided on a steel box girder, resulting in a weakened rigidity of the steel box girder, the present application provides a system for removing condensed water inside the steel box girder.
[0006] The present application provides a system for removing condensate from inside a steel box girder using the following technical solution:
[0007] A system for removing condensate from inside a steel box girder, the steel box girder comprising a diaphragm, a bottom plate and a plurality of U-ribs arranged on the bottom plate, the diaphragm being arranged along the length direction of the bottom plate, the U-ribs being arranged along the width direction of the bottom plate, and the plurality of U-ribs being arranged at intervals along the length direction of the bottom plate, the discharge system comprising a steel pipe, the steel pipe being arranged along the length direction of the bottom plate, and the steel pipe being located at the connection between the diaphragm and the bottom plate, one side of the steel pipe being fixed to the diaphragm, and the other side of the steel pipe being fixed to the bottom plate, the steel pipe passing through the U-ribs, drainage holes being provided on the steel pipe between adjacent U-ribs, the drainage holes being located on the side of the steel pipe away from the diaphragm, and one end of the steel pipe extending out of the bottom plate.
[0008] By adopting the above technical solution, when condensation water is generated in the steel box girder, the condensation water on the surface of the diaphragm and the U-rib flows to the steel pipe, enters the steel pipe from the drainage hole on the steel pipe, and then flows along the steel pipe until it flows to the end of the steel box girder, and flows out from one end of the steel pipe that passes through the bottom plate, thereby realizing the discharge of condensation water. In this process, the condensation water in the steel box girder is collected through the steel pipe and then discharged together. Compared with the structure of opening several holes on the bottom plate for drainage, the structural damage of the steel box girder itself is relatively small, thereby having less impact on the stiffness of the steel box girder.
[0009] Optionally, a guide plate is provided in the steel pipe, the guide plate is located below the drainage hole, one end of the guide plate is connected to the U rib, and the other end is tilted downward.
[0010] By adopting the above technical solution, when condensed water in the steel box girder flows from the drainage hole to the steel pipe, the water will flow onto the guide plate and enter the steel pipe along the guide plate, thereby facilitating the condensed water to enter the steel pipe.
[0011] Optionally, a lifting plate is provided in the steel pipe, and the lifting plate is located at the bottom of the steel pipe. A driving component is provided in the steel box girder, and the driving component is connected to the lifting plate for driving the lifting plate to move up and down.
[0012] By adopting the above technical solution, when there is a small amount of condensate in the steel pipe which is not enough to flow along the steel pipe, that is, when it remains stationary in the steel pipe, the driving assembly is used to drive the lifting plate to move up, thereby shaking and beating the water up and down, so that the water flows under the force, thereby facilitating the discharge of the small amount of condensate in the steel pipe.
[0013] Optionally, the driving assembly includes a moving rod and a plurality of connecting rods, the plurality of connecting rods corresponding one to one with the lifting plate, the connecting rods passing through a steel pipe in a direction perpendicular to the bottom plate, the bottom end of the connecting rod is fixed to the lifting plate, the moving rod is located above the steel pipe, the top end of the connecting rod is fixed to the moving rod, the top end of the guide plate is hinged on the side wall of the U rib, and the bottom end of the guide plate abuts against the top wall of the lifting plate.
[0014] By adopting the above technical solution, the moving rod is directly pushed, so that the connecting rod drives the lifting plate to move upward, thereby driving the condensate in the steel pipe to move. When the lifting plate moves, the lifting plate drives the bottom end of the guide plate to move upward, while the position of the top end of the guide plate is fixed, so that the connection between the guide plate and the U rib is axially rotated to adapt to the shortened distance between the top end of the guide plate and the lifting plate, that is, the guide plate will not interfere with the movement of the lifting plate.
[0015] Optionally, a protective pad is fixed to the bottom end of the guide plate, and the protective pad abuts against the top wall of the lifting plate.
[0016] By adopting the above technical solution, when the lifting plate moves, the guide plate is driven to rotate, so that the bottom end of the guide plate slides on the top wall of the lifting plate with the protective pad. The protective pad plays a protective role, making it difficult for the guide plate and the lifting plate to be damaged by friction, thereby extending the service life of the guide plate and the lifting plate.
[0017] Optionally, the guide plate is connected to the side wall of the U rib via a spring, and the spring is used to drive the guide plate to move in the direction of the lifting plate.
[0018] By adopting the above technical solution, when the lifting plate moves up, the guide plate is driven to rotate upward, causing the spring to deform. When the force pushing the moving rod is removed, the elastic force of the spring pulls the guide plate to rotate downward, causing the guide plate to apply downward pressure to the lifting plate, thereby quickly resetting the lifting plate.
[0019] Optionally, a scraper is slidably connected to the inner wall of the steel pipe on the side away from the transverse partition, and the scraper is hinged with a driving rod. The end of the driving rod away from the scraper is hinged on a lifting plate. The lifting plate moves to drive the driving rod to move the scraper, and the scraper moves along the length direction of the steel box girder and cleans the drainage holes.
[0020] By adopting the above technical solution, in the initial state, the lifting plate is located at the bottom of the steel pipe, and the scraper is located on one side of the drainage hole. When the lifting plate moves up, one end of the driving rod is driven to move up, while the scraper cannot move up and down, so that the driving rod rotates, and the distance between the two ends of the driving rod in the direction perpendicular to the bottom plate changes to meet the distance from the lifting plate to the scraper. The length of the driving rod itself remains unchanged, so that the distance between the two ends of the driving rod in the length direction of the steel box beam is also changed, thereby pushing the scraper to move along the length direction of the steel box beam. When the scraper passes through the drainage hole, it scrapes the opening of the drainage hole to clean the drainage hole and ensure the smooth flow of condensed water.
[0021] Optionally, a brush is provided on one side of the scraper close to the U-rib.
[0022] By adopting the above technical solution, when the scraper moves on the steel pipe, it also drives the brush to pass through the drainage hole. The brush is relatively soft and can be deformed. When passing through the drainage hole, part of the brush can extend into the drainage hole for cleaning. The brush can also more easily absorb smaller impurities, thereby improving the cleanliness of cleaning the drainage hole.
[0023] In summary, the present application includes at least one of the following beneficial effects:
[0024] 1. When condensation water is generated in the steel box girder, the condensation water on the surface of the diaphragm and the U-rib flows to the steel pipe, enters the steel pipe from the drainage hole on the steel pipe, and then flows along the steel pipe until it flows to the end of the steel box girder and flows out from the end of the steel pipe that passes through the bottom plate, thus realizing the discharge of condensation water. In this process, the condensation water in the steel box girder is collected through the steel pipe and then discharged together. Compared with the structure of opening several holes on the bottom plate for drainage, the structural damage of the steel box girder itself is less, thus having less impact on the stiffness of the steel box girder;
[0025] 2. In the initial state, the lifting plate is located at the bottom of the steel pipe, and the scraper is located on one side of the drainage hole. When the lifting plate moves up, one end of the driving rod is driven to move up, while the scraper cannot move up and down, so that the driving rod rotates, and the distance between the two ends of the driving rod in the direction perpendicular to the bottom plate changes to meet the distance from the lifting plate to the scraper. The length of the driving rod itself remains unchanged, so the distance between the two ends of the driving rod in the length direction of the steel box beam is also changing, thereby pushing the scraper to move along the length direction of the steel box beam. When the scraper passes through the drainage hole, it scrapes the opening of the drainage hole to clean the drainage hole and ensure the smooth flow of condensed water. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic diagram of the structure of a system for removing condensate from a steel box girder according to an embodiment of the present application;
[0027] Figure 2 It is the cross-sectional view of the steel box girder in the width direction;
[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0029] In the figure: 10, cross partition; 20, bottom plate; 30, U rib; 40, steel pipe; 41, guide rail; 42, drainage hole; 50, guide plate; 51, spring; 52, protective pad; 60, lifting plate; 70, driving assembly; 71, moving rod; 72, connecting rod; 80, scraper; 81, driving rod; 82, brush. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-3 This application is described in further detail.
[0031] The present application embodiment discloses a system for removing condensate from inside a steel box girder. Figure 1 and Figure 2 The condensate removal system inside the steel box girder includes a steel pipe 40, wherein the steel box girder includes a transverse diaphragm 10, a bottom plate 20 and a plurality of U ribs 30 arranged on the bottom plate 20, the transverse diaphragm 10 is arranged along the length direction of the bottom plate 20, the U ribs 30 are arranged along the width direction of the bottom plate 20, and the plurality of U ribs 30 are arranged at intervals along the length direction of the bottom plate 20.
[0032] Reference Figure 1 and Figure 3The steel pipe 40 is a quarter of a circular pipe, that is, the cross section of the steel pipe 40 is fan-shaped. The steel pipe 40 is arranged at the angle where the diaphragm 10 and the bottom plate 20 are connected along the length direction of the steel box girder. One side plane of the steel pipe 40 is fixed to the diaphragm 10, and the other side plane is fixed to the bottom plate 20. The steel pipe 40 passes through the U rib 30, and the connection between the steel pipe 40 and the U rib 30 is fully welded, so that the U rib 30 is always in a closed state. Drain holes 42 are opened on the steel pipe 40 between adjacent U ribs 30. The drainage holes 42 are located on the arc surface of the steel pipe 40. One end of the steel pipe 40 is bent downward and passes through the bottom plate 20.
[0033] When condensed water is generated in the steel box girder, the condensed water on the surface of the diaphragm 10 and the U rib 30 flows to the steel pipe 40, enters the steel pipe 40 from the drainage hole 42 on the steel pipe 40, and then flows along the steel pipe 40 until it flows to the end of the steel box girder, and flows out from one end of the steel pipe 40 that passes through the bottom plate 20, so as to realize the discharge of the condensed water. In this process, the condensed water in the steel box girder is collected through the steel pipe 40 and then discharged together. Compared with the structure of opening several holes on the bottom plate 20 for drainage, the structural damage of the steel box girder itself is relatively small, thereby having a relatively small impact on the stiffness of the steel box girder.
[0034] Reference Figure 1 and Figure 3 A guide plate 50 is provided in the steel pipe 40. The guide plate 50 is located on the side of the water outlet of the drainage hole 42. The guide plate 50 is located below the drainage hole 42. One end of the guide plate 50 is hinged to the side wall of the U rib 30, and the other end is tilted downward. A spring 51 is provided between the guide plate 50 and the U rib 30. One end of the spring 51 is fixed to the U rib 30, and the other end is fixed to the guide plate 50. The spring 51 applies a pulling force to the guide plate 50 to move closer to the U rib 30, so that the bottom end of the guide plate 50 abuts against the bottom wall of the steel pipe 40. When the water on the surface of the U rib 30 and the diaphragm 10 flows from the drainage hole 42 to the steel pipe 40, the water will flow to the guide plate 50 and enter the steel pipe 40 along the guide plate 50, so that the condensed water can enter the steel pipe 40.
[0035] Reference Figure 1 and Figure 3 When the amount of water in the steel pipe 40 is small, that is, the water remains stationary in the steel pipe 40, in order to clean the small amount of water in the steel pipe 40, a lifting plate 60 is provided at the bottom of the steel pipe 40, and a driving assembly 70 is provided in the steel box girder. The driving assembly 70 is connected to the lifting plate 60 and is used to drive the lifting plate 60 to move up and down.
[0036] Reference Figure 1 and Figure 3, wherein the driving assembly 70 includes a moving rod 71 and a plurality of connecting rods 72, the plurality of connecting rods 72 corresponding to the lifting plate 60 one by one, the connecting rods 72 are arranged in a direction perpendicular to the bottom plate 20, and penetrate the steel pipe 40, the bottom end of the connecting rod 72 is fixed to the lifting plate 60, the moving rod 71 is located above the steel pipe 40, and the top end of the connecting rod 72 is fixed to the moving rod 71. A connecting rod 72 at the end extends downward out of the bottom plate 20 through the steel pipe 40, and when the moving rod 71 needs to be driven upward, it can be realized by directly pushing the connecting rod 72.
[0037] When the moving rod 71 moves upward, the connecting rod 72 drives the lifting plate 60 to move upward, thereby driving part of the condensate in the steel pipe 40 to move upward, and the lifting plate 60 is used to shake and beat the water up and down, so that the water is forced to flow, which is convenient for the discharge of a small amount of condensate in the steel pipe 40. When the lifting plate 60 moves, the lifting plate 60 drives the bottom end of the guide plate 50 to move upward, overcoming the elastic force of the spring 51, and the position of the top end of the guide plate 50 is fixed, so that the connection between the guide plate 50 and the U rib 30 is axially rotated to adapt to the shortening of the distance between the top end of the guide plate 50 and the lifting plate 60, that is, the guide plate 50 will not interfere with the movement of the lifting plate 60.
[0038] At the same time, when the force pushing the moving rod 71 is removed, the elastic force of the spring 51 pulls the guide plate 50 to rotate downward, so that the guide plate 50 applies downward pressure to the lifting plate 60, thereby quickly restoring the lifting plate 60.
[0039] Reference Figure 3 A protective pad 52 is fixed to the bottom end of the guide plate 50 and abuts against the top wall of the lifting plate 60. When the lifting plate 60 moves, the bottom end of the guide plate 50 is driven to slide on the top wall of the lifting plate 60 with the protective pad 52. The protective pad 52 plays a protective role, making it difficult for the guide plate 50 and the lifting plate 60 to be damaged by friction, thereby extending the service life of the guide plate 50 and the lifting plate 60.
[0040] Reference Figure 1 and Figure 3 A guide rail 41 is fixed on the arc-shaped inner wall of the steel pipe 40, and the guide rail 41 is arranged along the length direction of the steel box girder. A scraper 80 is slidably connected to the guide rail 41. The scraper 80 is at the same height as the drainage hole 42. The scraper 80 is hinged with a driving rod 81, and one end of the driving rod 81 away from the scraper 80 is hinged on the lifting plate 60. The lifting plate 60 moves to drive the driving rod 81 to drive the scraper 80 to move, and the scraper 80 moves along the length direction of the guide rail 41 and cleans the drainage hole 42.
[0041] In the initial state, the lifting plate 60 is located at the bottom of the steel pipe 40, and the scraper 80 is located on one side of the drainage hole 42. When the lifting plate 60 moves up, one end of the driving rod 81 is driven to move up, while the scraper 80 cannot move up and down, so that the driving rod 81 rotates, and the distance between the two ends of the driving rod 81 in the direction perpendicular to the bottom plate 20 changes to meet the distance from the lifting plate to the scraper 80. The length of the driving rod 81 itself remains unchanged, so that the distance between the two ends of the driving rod 81 in the length direction of the steel box beam is also changed, thereby pushing the scraper 80 to move along the length direction of the steel box beam. When the scraper 80 passes through the drainage hole 42, it scrapes the opening of the drainage hole 42 to clean the drainage hole 42 and ensure the smooth flow of condensed water.
[0042] Reference Figure 1 and Figure 3 In order to increase the cleanliness of cleaning, a brush 82 is fixed on one side of the scraper 80 close to the U rib 30. When the scraper 80 moves on the steel pipe 40, the brush 82 is driven to pass through the drainage hole 42 at the same time. The brush 82 is relatively soft and can be deformed. When passing through the drainage hole 42, part of the brush 82 can extend into the drainage hole 42 for cleaning. The brush 82 is also easier to absorb smaller impurities.
[0043] The implementation principle of the condensate removal system of the steel box girder in the embodiment of the present application is as follows: when condensate is generated in the steel box girder, the condensate on the surface of the diaphragm 10 and the U rib 30 flows to the steel pipe 40, enters the steel pipe 40 from the drainage hole 42 on the steel pipe 40, and then flows along the steel pipe 40 until it flows to the end of the steel box girder, and flows out from one end of the steel pipe 40 that passes through the bottom plate 20, thereby realizing the discharge of condensate. In this process, the condensate in the steel box girder is collected by the steel pipe 40 and then discharged together. Compared with the structure of opening several holes on the bottom plate 20 for drainage, the structural damage of the steel box girder itself is relatively small, thereby having a relatively small impact on the rigidity of the steel box girder.
[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A system for removing condensed water inside a steel box girder, the steel box girder comprising a transverse diaphragm (10), a bottom plate (20) and a plurality of U ribs (30) arranged on the bottom plate (20), the transverse diaphragm (10) being arranged along the length direction of the bottom plate (20), the U ribs (30) being arranged along the width direction of the bottom plate (20), and the plurality of U ribs (30) being arranged at intervals along the length direction of the bottom plate (20), characterized in that: The invention comprises a steel pipe (40), wherein the steel pipe (40) is arranged along the length direction of the bottom plate (20), and the steel pipe (40) is located at the connection between the transverse partition (10) and the bottom plate (20), one side of the steel pipe (40) is fixed to the transverse partition (10), and the other side is fixed to the bottom plate (20), the steel pipe (40) passes through the U-rib (30), and drainage holes (42) are opened through the steel pipe (40) between adjacent U-ribs (30), and the drainage holes (42) are located on the side of the steel pipe (40) away from the transverse partition (10), and one end of the steel pipe (40) extends out of the bottom plate (20).
2. The system for removing condensed water inside a steel box girder according to claim 1, characterized in that: A guide plate (50) is provided in the steel pipe (40), and the guide plate (50) is located below the drainage hole (42). One end of the guide plate (50) is connected to the U rib (30), and the other end is tilted downward.
3. The system for removing condensed water inside a steel box girder according to claim 2, characterized in that: A lifting plate (60) is provided in the steel pipe (40), and the lifting plate (60) is located at the bottom of the steel pipe (40). A driving component (70) is provided in the steel box girder, and the driving component (70) is connected to the lifting plate (60) for driving the lifting plate (60) to move up and down.
4. The system for removing condensed water inside a steel box girder according to claim 3, characterized in that: The driving assembly (70) includes a moving rod (71) and a plurality of connecting rods (72), and the plurality of connecting rods (72) correspond one to one with the lifting plate (60). The connecting rod (72) passes through a steel pipe (40) in a direction perpendicular to the bottom plate (20), and the bottom end of the connecting rod (72) is fixed to the lifting plate (60). The moving rod (71) is located above the steel pipe (40), and the top end of the connecting rod (72) is fixed to the moving rod (71). The top end of the guide plate (50) is hinged on the side wall of the U rib (30), and the bottom end of the guide plate (50) abuts against the top wall of the lifting plate (60).
5. The system for removing condensed water inside a steel box girder according to claim 4, characterized in that: A protective pad (52) is fixed on the bottom end of the guide plate (50), and the protective pad (52) abuts against the top wall of the lifting plate (60).
6. The system for removing condensed water inside a steel box girder according to claim 4, characterized in that: The guide plate (50) is connected to the side wall of the U rib (30) via a spring (51), and the spring (51) is used to drive the guide plate (50) to move in the direction of the lifting plate (60).
7. The system for removing condensed water inside a steel box girder according to claim 3, characterized in that: A scraper (80) is slidably connected to the inner wall of the steel pipe (40) on the side away from the transverse partition, and the scraper (80) is hinged with a driving rod (81). The end of the driving rod (81) away from the scraper (80) is hinged on the lifting plate (60). The lifting plate (60) moves to drive the driving rod (81) to drive the scraper (80) to move. The scraper (80) moves along the length direction of the steel box beam and cleans the drainage hole (42).
8. The system for removing condensed water inside a steel box girder according to claim 7, characterized in that: A brush (82) is provided on one side of the scraper (80) close to the U-rib (30).