Single-span T-beam sudden change prevention device for hydropower station
By designing a single-span T-beam anti-mutation device for hydropower stations, the synergistic effect of the outer guard plate, hydraulic rod and nitrogen cylinder is used to detect and alleviate the overload stress at the cantilever end of the T-beam, and the deformation and damage problem caused by insufficient bearing capacity at the cantilever end of the T-beam in the prior art is solved, and effective protection of the structure and equipment of the hydropower station is achieved.
Patent Information
- Application Number
- CN202422178136.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The existing hydropower stations lack effective devices to prevent sudden changes in the T-beam stress when installing the T-beam structure, resulting in weak bearing capacity at the cantilever end of the T-beam, which is prone to deformation and damage due to sudden stress, which in turn causes damage to the overall structure and equipment of the hydropower station.
A single-span T-beam anti-mutation device is designed, including an outer guard plate, thickened block, pulling bolt, inner strut rod, outer strut rod, laser rangefinder, hydraulic rod, pallet, hydraulic cylinder, nitrogen cylinder, piston and support plate. Through the synergy of these components, the downward movement of the cantilever end is detected and the combination of hydraulic and nitrogen gas is slowly released to provide support to prevent deformation and damage caused by sudden stress of the T-beam.
Effectively prevent deformation and damage caused by sudden stress at the cantilever end of the T beam, and ensure the safety and stability of the overall structure and equipment of the hydropower station.
Smart Images
Figure CN222962012U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of hydropower stations, and specifically relates to a single-span T-beam anti-abrupt-change device for hydropower stations. Background Art
[0002] T-beams in hydropower stations are usually important components of hydropower station buildings. T-beams bear the weight of the upper structure, such as equipment, pipelines, cables, etc. The presence of T-beams helps to enhance the stability of the overall structure of the hydropower station and prevent structural deformation or damage caused by external forces or vibrations. The shape of the T-beam is roughly "T"-shaped, with high strength and stiffness, and can withstand large loads. T-beams are generally made of concrete or steel, and are selected according to the specific requirements and design requirements of the hydropower station. Its length and span are large, which can meet the architectural layout and equipment installation requirements of the hydropower station.
[0003] When installing the T-beam structure in existing hydropower stations, there is a lack of an effective device to prevent the abrupt change of the force on the T-beam. Especially at the cantilever end of the T-beam, its bearing capacity is weak. Once suddenly subjected to a force exceeding the limit value, it may produce large deformation and damage, and then cause damage to the overall structure and equipment of the hydropower station. Therefore, in order to solve this problem, it is necessary to propose a single-span T-beam anti-abrupt-change device for hydropower stations. Utility Model Content
[0004] The purpose of this application is to provide a single-span T-beam anti-abrupt-change device for hydropower stations to solve the above-mentioned problems.
[0005] The technical solution adopted in this application is as follows: A single-span T-beam anti-abrupt-change device for hydropower stations includes a pair of outer guard plates. Two thickening blocks are arranged on the outer side of the outer guard plates. A tie bolt is connected to the thickening blocks through nuts. An inner strut and an outer strut are respectively connected to the outer sides of the two thickening blocks through bolts. The tops of the inner strut and the outer strut are connected to the bottom of the flank of the outer guard plate through bolts.
[0006] A plurality of bottom plates are fixedly installed on the top of the flank of the outer guard plate. A laser rangefinder is fixedly installed on the outermost side of the top of the flank of the outer guard plate. Hydraulic rods are fixedly installed on both sides of the bottom plate. A support plate is fixedly installed on the inner side of the extended end of the hydraulic rod. A plurality of hydraulic cylinders and nitrogen cylinders are fixedly installed on the top of the support plate. The lower sides of the side walls of the hydraulic cylinders and the nitrogen cylinders are connected to each other through pipelines. A first piston and a second piston are respectively slidably installed inside the hydraulic cylinders and the nitrogen cylinders. A force transmission rod fixed to the first piston is inserted and installed on the top of the hydraulic cylinder. A support plate is hingedly installed on the top of the force transmission rod.
[0007] In a preferred embodiment, the outer guard plate is made of stainless steel, and the shape of the outer guard plate can be customized according to the shape of the T-beam.
[0008] In a preferred embodiment, the two outer guard plates are respectively installed on both side surfaces of the web of the T-beam, and the tie bolts are installed by drilling holes in the T-beam to connect the two outer guard plates to each other.
[0009] In a preferred embodiment, the support plate is in a U-shaped configuration, and the nitrogen cylinder is located at an alternating position of the hydraulic cylinder.
[0010] In a preferred embodiment, the inner diameter of the pipe connecting the hydraulic cylinder and the nitrogen cylinder is smaller than the inner diameters of the hydraulic cylinder and the nitrogen cylinder.
[0011] In a preferred embodiment, the chambers below the first piston in the hydraulic cylinder and the chambers below the second piston in the nitrogen cylinder are both filled with hydraulic oil.
[0012] In a preferred embodiment, the chamber above the second piston in the nitrogen cylinder is filled with nitrogen.
[0013] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present application are as follows:
[0014] 1. In the present application, through the above design, when using the device to reinforce the T-beam, first install the two outer guard plates on both sides of the web of the T-beam, then drill holes in the middle of the T-beam or reserve perforations in advance before pouring the T-beam. Then pass the tie bolts through the T-beam, and then tightly screw the two ends of the tie bolts onto the thickening blocks with nuts, so that the two outer guard plates are tightly fixed on the outside of the T-beam. Subsequently, install the inner strut and the outer strut on the thickening blocks and the bottom of the side wings of the outer guard plate with bolts as the reinforcement support, and the entire installation work can be completed. When the outer guard plate is installed, once the pressure on the cantilever end of the T-beam is too large, the cantilever end of the T-beam will deform and move downward. At this time, the laser rangefinder on the outside of the top of the side wing of the outer guard plate will detect that the downward amplitude of the cantilever end of the T-beam is too large. At this time, the hydraulic rod will start to extend, thereby driving the multiple hydraulic cylinders on the support plate to move upward, so that the support plate supports the bottom of the cantilever end of the T-beam. At this time, the force on the cantilever end of the T-beam will be transmitted to the force transmission rod through the support plate and press down to drive the first piston to move downward. Since the inner diameter of the pipe connecting the hydraulic cylinder and the nitrogen cylinder is smaller than the inner diameters of the hydraulic cylinder and the nitrogen cylinder, the hydraulic oil in the hydraulic cylinder will slowly flow into the nitrogen cylinder through the pipe and squeeze the second piston to move upward to compress the nitrogen, so as to slowly release the downward pressure from the cantilever beam and at the same time provide support for the cantilever beam to prevent deformation and damage caused by the sudden force on the cantilever end of the T-beam. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the present application;
[0016] Figure 2Schematic diagram of the structure of this application installed on the T-beam;
[0017] Figure 3 Schematic diagram of the structure of the side wing position of the outer protection plate in this application;
[0018] Figure 4 Schematic plan view of the structure on the bottom plate in this application.
[0019] Markings in the figure: 1 - outer protection plate, 2 - thickening block, 3 - tie bolt, 4 - inner strut, 5 - outer strut, 6 - bottom plate, 7 - laser rangefinder, 8 - hydraulic rod, 9 - supporting plate, 10 - hydraulic cylinder, 11 - nitrogen cylinder, 12 - first piston, 13 - second piston, 14 - force transfer rod, 15 - supporting plate. Detailed implementation manners
[0020] In order to make the objectives, technical solutions and advantages of this application clearer and more understandable, the following further details this application in conjunction with the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.
[0021] Refer to Figure 1 、 2 , a single-span T-beam anti-abrupt change device for a hydropower station, including a pair of outer protection plates 1. The outer protection plates 1 are made of stainless steel, and the shape of the outer protection plates 1 can be customized according to the shape of the T-beam. Two thickening blocks 2 are arranged on the outer side of the outer protection plates 1. Tie bolts 3 are connected to the thickening blocks 2 through nuts. The two outer protection plates 1 are respectively installed on the two side surfaces of the web of the T-beam, and the two outer protection plates 1 are connected to each other by punching holes in the T-beam and installing the tie bolts 3. The outer sides of the two thickening blocks 2 are respectively connected with an inner strut 4 and an outer strut 5 through bolts. The tops of the inner strut 4 and the outer strut 5 are connected to the bottom of the side wing of the outer protection plate 1 through bolts.
[0022] Through the above design, when using this device to reinforce the T-beam, first install the two outer protection plates 1 on the two sides of the web of the T-beam, then punch holes in the middle of the T-beam, or pre-reserve perforations before pouring the T-beam. Then pass the tie bolts 3 through the T-beam, and then tightly screw the two ends of the tie bolts 3 on the thickening blocks 2 through nuts, so that the two outer protection plates 1 are tightly fixed on the outside of the T-beam. Then install the inner strut 4 and the outer strut 5 on the thickening blocks 2 and the bottom of the side wing of the outer protection plate 1 through bolts as a reinforcement support, and the entire installation work can be completed.
[0023] Refer to Figure 1 、 2, 3, 4. Multiple groups of bottom plates 6 are fixedly installed at the top of the side wings of the outer guard plate 1. A laser rangefinder 7 is fixedly installed at the outermost side of the top of the side wings of the outer guard plate 1. Hydraulic rods 8 are fixedly installed on both sides of the bottom plate 6. The inner sides of the extending ends of the hydraulic rods 8 are fixedly installed with support plates 9. Multiple hydraulic cylinders 10 and nitrogen cylinders 11 are fixedly installed on the top of the support plate 9. The support plate 9 is in a U-shaped configuration. The nitrogen cylinders 11 are located at the alternating positions of the hydraulic cylinders 10. The lower sides of the side walls of the hydraulic cylinders 10 and the nitrogen cylinders 11 are connected to each other through pipes. The inner diameter of the pipes connecting the hydraulic cylinders 10 and the nitrogen cylinders 11 is smaller than the inner diameters of the hydraulic cylinders 10 and the nitrogen cylinders 11. A first piston 12 and a second piston 13 are slidably installed inside the hydraulic cylinders 10 and the nitrogen cylinders 11 respectively. The chambers below the first piston 12 inside the hydraulic cylinders 10 and the chambers below the second piston 13 inside the nitrogen cylinders 11 are filled with hydraulic oil. The chamber above the second piston 13 inside the nitrogen cylinders 11 is filled with nitrogen. A force transmission rod 14 fixed to the first piston 12 is inserted and installed at the top of the hydraulic cylinder 10. The top of the force transmission rod 14 is hingedly installed with a support plate 15.
[0024] With the above design, after the outer guard plate 1 is installed, once the pressure on the cantilever end of the T-beam is too large, the cantilever end of the T-beam will deform and move downward. At this time, the laser rangefinder 7 on the outer side of the top of the side wings of the outer guard plate 1 will detect that the downward amplitude of the cantilever end of the T-beam is too large. At this time, the hydraulic rods 8 will start to extend, thereby driving the multiple hydraulic cylinders 10 on the support plate 9 to move upward, so that the support plate 15 supports the bottom of the cantilever end of the T-beam. At this time, the force on the cantilever end of the T-beam will be transmitted to the force transmission rod 14 through the support plate 15 and press down to drive the first piston 12 to move downward. Since the inner diameter of the pipes connecting the hydraulic cylinders 10 and the nitrogen cylinders 11 is smaller than the inner diameters of the hydraulic cylinders 10 and the nitrogen cylinders 11, the hydraulic oil in the hydraulic cylinders 10 will slowly drain into the nitrogen cylinders 11 through the pipes and squeeze the second piston 13 to move upward to compress the nitrogen, so as to slowly release the downward force from the cantilever beam and at the same time provide support to the cantilever beam to prevent deformation and damage caused by the sudden force on the cantilever end of the T-beam.
[0025] The implementation principle of the embodiment of this application is:
[0026] When using this device to reinforce the T-beam, first install the two outer guard plates 1 on both sides of the web of the T-beam. Then, drill holes in the middle of the T-beam or reserve perforations in advance before pouring the T-beam. Then, pass the tie bolts 3 through the T-beam, and screw the two ends of the tie bolts 3 tightly onto the thickening blocks 2 with nuts, so that the two outer guard plates 1 are tightly fixed on the outside of the T-beam. Then, install the inner struts 4 and the outer struts 5 on the thickening blocks 2 and the bottom of the side wings of the outer guard plate 1 with bolts as reinforcement supports, and the entire installation work can be completed. After the outer guard plate 1 is installed, once the pressure on the cantilever end of the T-beam is too large, the cantilever end of the T-beam will deform and move downward. At this time, the laser rangefinder 7 on the outside of the top of the side wing of the outer guard plate 1 will detect that the downward amplitude of the cantilever end of the T-beam is too large. At this time, the hydraulic rod 8 will start to extend, driving the multiple hydraulic cylinders 10 on the support plate 9 to move upward, so that the support plate 15 supports the bottom of the cantilever end of the T-beam. At this time, the force on the cantilever end of the T-beam will be transmitted to the transfer rod 14 through the support plate 15 and press down to drive the first piston 12 to move downward. Since the inner diameter of the pipe connecting the hydraulic cylinder 10 and the nitrogen cylinder 11 is smaller than the inner diameters of the hydraulic cylinder 10 and the nitrogen cylinder 11, the hydraulic oil in the hydraulic cylinder 10 will slowly drain into the nitrogen cylinder 11 through the pipe and squeeze the second piston 13 to move upward to compress the nitrogen, so as to slowly release the downward pressure from the cantilever beam and support the cantilever beam at the same time to prevent the deformation and damage caused by the sudden force on the cantilever end of the T-beam.
[0027] The above are only the preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.
Claims
1. A single-span T-beam anti-mutation device for a hydropower station, comprising a pair of outer guard plates (1), characterized in that: Two thickening blocks (2) are arranged on the outer side of the outer guard plate (1), and tension bolts (3) are connected to the thickening blocks (2) via nuts. The outer sides of the two thickening blocks (2) are respectively connected to inner support rods (4) and outer support rods (5) via bolts, and the top ends of the inner support rods (4) and the outer support rods (5) are connected to the bottom of the side wings of the outer guard plate (1) via bolts. A plurality of bottom plates (6) are fixedly mounted on the top of the side wing of the outer guard plate (1); a laser rangefinder (7) is fixedly mounted on the outermost side of the top of the side wing of the outer guard plate (1); hydraulic rods (8) are fixedly mounted on both sides of the bottom plates (6); a support plate (9) is fixedly mounted on the inner side of the extended end of the hydraulic rod (8); a plurality of hydraulic cylinders (10) and nitrogen cylinders (11) are fixedly mounted on the top of the support plate (9); the lower side walls of the hydraulic cylinders (10) and the nitrogen cylinders (11) are connected to each other through pipelines; a first piston (12) and a second piston (13) are slidably mounted inside the hydraulic cylinders (10) and the nitrogen cylinders (11), respectively; a force transmission rod (14) fixed to the first piston (12) is plugged and mounted on the top of the hydraulic cylinder (10); a support plate (15) is hingedly mounted on the top of the force transmission rod (14).
2. A single-span T-beam anti-mutation device for a hydropower station as claimed in claim 1, characterized in that: The outer guard plate (1) is made of stainless steel, and the shape of the outer guard plate (1) can be customized according to the shape of the T-beam.
3. A single-span T-beam anti-mutation device for a hydropower station as claimed in claim 1, characterized in that: The two outer guard plates (1) are respectively installed on both side surfaces of the web of the T-beam, and the two outer guard plates (1) are connected to each other by drilling holes in the T-beam and installing tension bolts (3).
4. A single-span T-beam anti-mutation device for a hydropower station as claimed in claim 1, characterized in that: The support plate (9) is in a U-shape, and the nitrogen cylinder (11) is located at an intermediate position of the hydraulic cylinder (10).
5. The single-span T-beam anti-mutation device for a hydropower station as claimed in claim 1, characterized in that: The inner diameter of the pipe connecting the hydraulic cylinder (10) and the nitrogen cylinder (11) is smaller than the inner diameters of the hydraulic cylinder (10) and the nitrogen cylinder (11).
6. The single-span T-beam anti-mutation device for a hydropower station as claimed in claim 1, characterized in that: The chamber located below the No. 1 piston (12) in the hydraulic cylinder (10) and the chamber located below the No. 2 piston (13) in the nitrogen cylinder (11) are both filled with hydraulic oil.
7. The single-span T-beam anti-mutation device for a hydropower station as claimed in claim 1, characterized in that: The chamber in the nitrogen cylinder (11) located above the second piston (13) is filled with nitrogen.