A compensating steel form for construction of a concrete tower of a cooling tower of a thermal power plant
By using compensating steel formwork in the construction of cooling tower cylinders, and by utilizing the staggered connection of components such as curved plates and threaded rods, the problem of concrete leakage caused by misfitting formwork splices was solved, and the sealing and integrity of the formwork were improved.
Patent Information
- Application Number
- CN202522619850.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-10
AI Technical Summary
During the construction of the cooling tower, it is difficult for the formwork joints to fit completely, which leads to the problem of concrete grout leakage.
The design employs a compensating steel formwork system that includes an outer steel plate and an inner steel plate. Through the interlacing of components such as arc plates, L-bars, inclined plates, and threaded rods, the gaps in the formwork are eliminated using the lever principle, and the gaps are filled by a gradient structure to enhance the sealing performance of the formwork.
It effectively eliminated gaps in the formwork joints, prevented concrete leakage, and improved the sealing and integrity of the formwork.
Smart Images
Figure CN224931367U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cooling tower technology, and in particular to a compensating steel formwork for the construction of concrete cooling towers in thermal power plants. Background Technology
[0002] Cooling towers in thermal power plants are primarily used to cool circulating water, lowering the water temperature through heat exchange between the water and air. The working principle involves spraying hot water onto the packing material, where it convects with the rising cold air, carrying away heat through evaporation and thus achieving cooling. Cooling towers typically consist of a condenser, a circulating water pump house, and the tower itself, ensuring effective dissipation of heat generated during power generation. Water-saving devices are usually incorporated into the design of cooling towers to minimize water loss.
[0003] In the existing technology, during the construction of the cooling tower cylinder, a stable base needs to be built first. The base needs to be constructed using templates, and multiple templates are spliced together to form a ring-shaped base. Then, concrete is poured, and the concrete solidifies over time, thus completing the construction of the base. However, when pouring concrete through the space in the template, since the templates are spliced together, it is difficult to achieve a perfect fit at the joints. Furthermore, due to the alignment deviation during construction and installation, a certain gap will inevitably be generated between adjacent sections. During the concrete pouring process, due to the fluidity of the concrete itself and the impact pressure during pouring, some concrete slurry will leak out from the gap. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a compensating steel formwork for the construction of concrete cooling towers in thermal power plants.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a compensating steel formwork for the construction of a concrete tower cylinder of a cooling tower in a thermal power plant, comprising an outer steel plate and an inner steel plate. An arc-shaped plate is provided on one side of the arc surface of the outer steel plate, and the arc surface of the outer steel plate is rotatably connected to one end of the arc-shaped plate. A rectangular opening is provided at one end of the arc-shaped plate, and an inclined plate is provided at the end of the rectangular opening. The end of the rectangular opening is slidably connected to the inclined surface of the inclined plate. A V-plate is provided at one end of the inner steel plate, and one end of the inner steel plate contacts the inclined surface of the V-plate. A connecting plate is provided on the inner side of the V-plate, and the inner side of the V-plate is fixedly connected to one end of the connecting plate. A vertical rod is provided on the inner side of the connecting plate, and the inner side of the connecting plate is fixedly connected to one end of the vertical rod. A threaded rod is provided on the inner wall of the vertical rod, and the inner wall of the vertical rod is threadedly connected to the outer side of the threaded rod.
[0006] In a preferred embodiment, one end of the inclined plate is provided with a lead screw, one end of the inclined plate is rotatably connected to one end of the lead screw, one end of the lead screw is provided with a handle, one end of the lead screw is fixedly connected to one end of the handle, and an insertion hole is provided on the outer side of the handle.
[0007] In a preferred embodiment, a limiting plate is provided at one end of the inclined plate, and one end of the inclined plate is fixedly connected to one end of the limiting plate. An L-rod is provided on the outer side of the limiting plate, and the outer side of the limiting plate is slidably connected to the inner wall of one end of the L-rod.
[0008] In a preferred embodiment, the inner wall of the L-bar is threadedly connected to the outer side of the lead screw.
[0009] In a preferred embodiment, a support rod is provided on the inner side of the L-rod, and the inner side of the L-rod is fixedly connected to both ends of the support rod, and one end of the L-rod is fixedly connected to one side of the outer steel plate.
[0010] In a preferred embodiment, one end of the second lead screw is rotatably connected to one side of the inner steel plate.
[0011] In a preferred embodiment, the inner wall of the vertical rod is provided with a guide rod, and the inner wall of the vertical rod is connected through the outer side of the guide rod.
[0012] In a preferred embodiment, one end of the vertical rod is provided with an anti-detachment plate, and one end of the vertical rod is fixedly connected to one end of the anti-detachment plate.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. By connecting an arc-shaped plate and an L-shaped rod to the outer arc surface of each outer steel plate, the components on the four arc-shaped plates are connected in an interlaced manner. The screw is rotated, and the rotation of the screw causes the inclined plate to gradually enter the rectangular opening and exert lateral force, thereby further contacting the adjacent outer steel plates and eliminating the gaps between the outer steel plates. Secondly, by using a tool to rotate the screw, the V-plate gradually fits the end of the adjacent inner steel plate. As the screw continues to rotate, the V-plate can be tightly embedded in the gap between the ends of the adjacent inner steel plates, filling the gaps through a gradual structure. 2. By installing a guide rod on the inner wall of the vertical rod, the vertical rod can slide on the guide rod, and the guide rod is fixed to the inner steel plate. This method allows the vertical rod to move only along the set path when it moves, preventing deviation. At the same time, an anti-detachment plate is fixed at the end of the guide rod to prevent the vertical rod from detaching from the guide rod due to excessive backlash caused by the reverse rotation of the lead screw. Attached Figure Description
[0014] Figure 1This utility model provides a structural schematic diagram of a compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant.
[0015] Figure 2 This utility model provides a side view of the outer steel plate assembly of a compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant.
[0016] Figure 3 This utility model provides an enlarged structural schematic diagram of an arc-shaped plate assembly for compensating steel formwork used in the construction of a concrete cooling tower in a thermal power plant.
[0017] Figure 4 This utility model provides an enlarged structural diagram of the inner steel plate assembly of a compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant.
[0018] Figure 5 This utility model provides a schematic diagram of the inner steel plate component of a compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant.
[0019] Legend: 11. Outer steel plate; 12. Inner steel plate; 13. Rectangular opening; 14. Inclined plate; 15. Limiting plate; 16. Thruster; 17. Insertion hole; 18. Lead screw one; 19. L-bar; 110. Support rod; 111. V-plate; 112. Connecting plate; 113. Vertical rod; 114. Guide rod; 115. Anti-detachment plate; 116. Lead screw two; 117. Arc plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0021] like Figure 1-5As shown, this utility model provides a technical solution: a compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant, comprising an outer steel plate 11 and an inner steel plate 12. An arc-shaped plate 117 is provided on one side of the arc surface of the outer steel plate 11, and the arc surface of the outer steel plate 11 is rotatably connected to one end of the arc-shaped plate 117. A rectangular opening 13 is provided at one end of the arc-shaped plate 117, and an inclined plate 14 is provided at the end of the rectangular opening 13. The end of the rectangular opening 13 is connected to the inclined plate 14. The inclined surface of plate 14 is slidably connected. One end of the inner steel plate 12 is provided with a V-plate 111, and one end of the inner steel plate 12 contacts the inclined surface of the V-plate 111. A connecting plate 112 is provided on the inner side of the V-plate 111, and the inner side of the V-plate 111 is fixedly connected to one end of the connecting plate 112. A vertical rod 113 is provided on the inner side of the connecting plate 112, and the inner side of the connecting plate 112 is fixedly connected to one end of the vertical rod 113. A screw rod 11 is provided on the inner wall of the vertical rod 113. 6. The inner wall of the vertical rod 113 is threadedly connected to the outer side of the lead screw 116. One end of the inclined plate 14 is provided with a lead screw 18, and one end of the inclined plate 14 is rotatably connected to one end of the lead screw 18. One end of the lead screw 18 is provided with a handle 16, and one end of the lead screw 18 is fixedly connected to one end of the handle 16. An insertion hole 17 is opened on the outer side of the handle 16. One end of the inclined plate 14 is provided with a limit plate 15, and one end of the inclined plate 14 is fixed to one end of the limit plate 15. The connection includes an L-rod 19 on the outer side of the limiting plate 15, which is slidably connected to the inner wall of one end of the L-rod 19. The inner wall of the L-rod 19 is threadedly connected to the outer side of the lead screw 18. A support rod 110 is provided on the inner side of the L-rod 19, and the two ends of the support rod 110 are fixedly connected to the inner side of the L-rod 19. One end of the L-rod 19 is fixedly connected to one side of the outer steel plate 11, and one end of the lead screw 116 is rotatably connected to one side of the inner steel plate 12.
[0022] In this embodiment, the compensating steel formwork for the construction of the concrete tower of the cooling tower in a thermal power plant has a gap between the outer steel plate 11 and the inner steel plate 12. This gap is used for pouring concrete. The outer steel plate 11 has four arc plates forming a ring. Each outer steel plate 11 has an arc plate 117 and an L-shaped rod 19 connected to its outer arc surface. The components on the four arc plates 117 are connected in an alternating manner. One end of the arc plate 117 has a rectangular opening 13. The end of the rectangular opening 13 contacts the inclined surface of the inclined plate 14. One end of the inclined plate 14 is rotatably connected to one end of the screw rod 18. The outer side of the lead screw 18 is threaded to the inner wall of the L-rod 19, while the other end of the lead screw 18 is connected to the throttle 16. There are multiple insertion holes 17 on the circumference of the throttle 16. A rod-shaped object can be inserted into the insertion holes 17 to rotate the throttle 16 and the lead screw 18 using the lever principle. The rotation of the lead screw 18 will cause the inclined plate 14 to gradually enter the rectangular opening 13 and have lateral force, which in turn creates lateral tension on the arc plate 117, further contacting the adjacent outer steel plate 11, eliminating the splicing gap of the outer steel plate 11, ensuring the sealing of the formwork during the concrete pouring process of the cooling tower base, and avoiding concrete leakage. The inner steel plate 12 is composed of four arc plates forming a ring. A V-plate 111 is designed at the ends of adjacent inner steel plates 12. The V-plate 111 is a gradient type. When the gap between the inner steel plates 12 is large, a connecting plate 112 is installed on the inner side of the V-plate 111. A vertical rod 113 is fixed to the inner side of the connecting plate 112. A screw rod 116 is threaded onto the inner wall of the vertical rod 113. One end of the screw rod 116 is rotatably connected to the inner steel plate. The screw rod 116 can be rotated using a tool. The mechanism utilizes the threaded transmission between the lead screw 116 and the vertical rod 113 to drive the vertical rod 113 to move the connecting plate 112 and the V-plate 111 along the axis of the lead screw 116. This causes the V-plate 111 to gradually fit into the end of the adjacent inner steel plate 12. As the lead screw 116 continues to rotate, the V-plate 111 can be tightly embedded in the gap between the ends of the adjacent inner steel plates 12. By filling the gap through a gradual structure, the splicing gap of the inner steel plates 12 is effectively eliminated, thereby increasing the integrity and sealing of the inner template. By installing a strut 110 on the inner side of the L-rod 19, the presence of the strut 110 makes the L-rod 19 and the strut 110 form a triangle. By utilizing the geometric stability characteristics of the triangle, the single-point load on the L-rod 19 is effectively reduced, and the L-rod is prevented from undergoing plastic deformation. Example
[0023] like Figure 4-5 As shown, a guide rod 114 is provided on the inner wall of the vertical rod 113, and the inner wall of the vertical rod 113 is connected to the outer side of the guide rod 114. An anti-detachment plate 115 is provided at one end of the vertical rod 113, and one end of the vertical rod 113 is fixedly connected to one end of the anti-detachment plate 115.
[0024] In this embodiment, a guide rod 114 is installed on the inner wall of the vertical rod 113, allowing the vertical rod 113 to slide on the guide rod 114. The guide rod 114 is fixed to the inner steel plate 12. This method ensures that the vertical rod 113 can only move along a set path, preventing deviation. At the same time, an anti-detachment plate 115 is fixed to the end of the guide rod 114. The diameter of the anti-detachment plate 115 is larger than that of the guide rod 114. The anti-detachment plate 115 and the end of the vertical rod 113 are mutually restrained by the contact between the anti-detachment plate 115 and the end of the vertical rod 113, preventing the vertical rod 113 from detaching from the guide rod 114 due to excessive retraction caused by the reverse rotation of the lead screw 116.
[0025] Working principle: like Figure 1-5 As shown, each outer steel plate 11 has an arc-shaped plate 117 and an L-shaped rod 19 connected to its outer arc surface. The components on the four arc-shaped plates 117 are connected in an alternating manner. One end of the arc-shaped plate 117 has a rectangular opening 13, the end of which contacts the inclined surface of the inclined plate 14. One end of the inclined plate 14 is rotatably connected to one end of the lead screw 18, and the outer side of the lead screw 18 is threadedly connected to the inner wall of the L-shaped rod 19. The other end of the lead screw 18 is connected to the throttle 16. The throttle 16 has multiple insertion holes 17 on its circumference. A rod-shaped object can be inserted to rotate the throttle 16 and the lead screw using the lever principle. The rotation of the lead screw causes the inclined plate 14 to gradually enter the rectangular opening 17. 3. It also has lateral force, which in turn creates lateral tension on the arc plate 117, further contacting the adjacent outer steel plate 11 and eliminating the splicing gap of the outer steel plate 11. Secondly, when the gap at the connection between the inner steel plates 12 is large, the screw rod 116 is rotated by using a tool. The screw rod 116 and the vertical rod 113 are driven by the threaded transmission action of the screw rod 116 to drive the connecting plate 112 and the V plate 111 to move along the axis of the screw rod 116. This allows the V plate 111 to gradually fit into the end of the adjacent inner steel plate 12. As the screw rod 116 continues to rotate, the V plate 111 can be tightly embedded in the gap between the ends of the adjacent inner steel plates 12, filling the gap through a gradual structure.
[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant, characterized in that, The system includes an outer steel plate (11) and an inner steel plate (12). An arc-shaped plate (117) is provided on one side of the arc surface of the outer steel plate (11). The arc surface of the outer steel plate (11) is rotatably connected to one end of the arc-shaped plate (117). A rectangular opening (13) is provided at one end of the arc-shaped plate (117). An inclined plate (14) is provided at the end of the rectangular opening (13). The end of the rectangular opening (13) is slidably connected to the inclined surface of the inclined plate (14). A V-plate (111) is provided at one end of the inner steel plate (12). One end of plate (12) contacts the inclined surface of V plate (111). A connecting plate (112) is provided on the inner side of V plate (111). The inner side of V plate (111) is fixedly connected to one end of connecting plate (112). A vertical rod (113) is provided on the inner side of connecting plate (112). The inner side of connecting plate (112) is fixedly connected to one end of vertical rod (113). A screw rod (116) is provided on the inner wall of vertical rod (113). The inner wall of vertical rod (113) is threadedly connected to the outer side of screw rod (116).
2. The compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant according to claim 1, characterized in that: One end of the inclined plate (14) is provided with a lead screw (18), one end of the inclined plate (14) is rotatably connected to one end of the lead screw (18), one end of the lead screw (18) is provided with a throttle (16), one end of the lead screw (18) is fixedly connected to one end of the throttle (16), and an insertion hole (17) is provided on the outside of the throttle (16).
3. The compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant according to claim 1, characterized in that: One end of the inclined plate (14) is provided with a limiting plate (15), and one end of the inclined plate (14) is fixedly connected to one end of the limiting plate (15). An L rod (19) is provided on the outside of the limiting plate (15), and the outside of the limiting plate (15) is slidably connected to the inner wall of one end of the L rod (19).
4. A compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant according to claim 3, characterized in that: The inner wall of the L rod (19) is threadedly connected to the outer side of the lead screw (18).
5. A compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant according to claim 4, characterized in that: The inner side of the L rod (19) is provided with a support rod (110), the inner side of the L rod (19) is fixedly connected to both ends of the support rod (110), and one end of the L rod (19) is fixedly connected to one side of the outer steel plate (11).
6. A compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant according to claim 1, characterized in that: One end of the second lead screw (116) is rotatably connected to one side of the inner steel plate (12).
7. A compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant according to claim 1, characterized in that: The inner wall of the vertical rod (113) is provided with a guide rod (114), and the inner wall of the vertical rod (113) is connected to the outer side of the guide rod (114).
8. A compensating steel formwork for the construction of a concrete cooling tower in a thermal power plant according to claim 1, characterized in that: One end of the vertical rod (113) is provided with an anti-detachment plate (115), and one end of the vertical rod (113) is fixedly connected to one end of the anti-detachment plate (115).