Natural ventilation indirect air cooling tower steel pipe concrete x support steel temporary foundation

Abstract

The application discloses a natural ventilation indirect air cooling tower steel pipe concrete X support steel temporary foundation, belongs to the technical field of installation of the air cooling tower steel pipe concrete X support, and relates to an X support steel temporary foundation, which comprises a concrete X support body, auxiliary support rods hingedly installed on the concrete X support body, and a temporary foundation seat fixedly installed on the front face of the concrete X support body and located on the ground, the auxiliary support rods are arranged at the upper end of the temporary foundation seat, the temporary foundation seat is provided with a mounting mechanism for being connected with the auxiliary support rods, the mounting mechanism comprises a conical disc fixedly installed at the upper end of the temporary foundation seat and a connecting head fixedly installed at the lower end of the auxiliary support rod, and the upper end of the conical disc is provided with a slot for guiding and inserting the connecting head; through cooperation of the conical disc, the slot and an inner support ring, the auxiliary support rods are quickly installed and accurately positioned, and the overall installation efficiency of the X support steel main body is improved.

Description

Technical Field

[0001] This application relates to the technical field of steel tube concrete X-column installation for air-cooled towers, specifically a temporary steel foundation for a natural ventilation indirect air-cooled tower using steel tube concrete X-column. Background Technology

[0002] In industries such as thermal power generation and chemical processing, natural draft indirect air-cooled towers are a key energy-saving cooling device. Their massive tower structure is typically supported by multiple sets of steel-concrete composite supports arranged in an "X" shape (hereinafter referred to as "X supports"). During the construction or major overhaul of the air-cooled tower, the hoisting, positioning, and concrete pouring and curing stages of the X supports require a stable and reliable temporary support foundation to bear part of their weight and precisely maintain their designed spatial position until the permanent foundation has the load-bearing capacity or the structure itself reaches sufficient strength.

[0003] Currently, construction sites typically use auxiliary supports that are hinged to X-columns. Support is achieved by fixing the bottom of the auxiliary support to the temporary foundation with bolts. However, the connection method between the temporary support and the temporary foundation is crude and inefficient. It usually involves welding a temporary base plate to the bottom of the support and then fixing it to the steel platform below with a large number of bolts or even on-site welding. This process requires precise alignment at high altitude, is extremely time-consuming, and the connection quality is greatly affected by the worker's skill.

[0004] Therefore, this application provides a temporary steel foundation for a natural ventilation indirect air-cooled tower with steel tube concrete X-column support to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a temporary steel foundation for a steel-concrete composite X-column of a natural ventilation indirect air-cooled tower, which aims to solve the problem mentioned in the background art that the installation of existing X-columns requires auxiliary columns for support, but the installation efficiency of the auxiliary columns and temporary foundations is low.

[0006] To achieve the above objectives, this application provides the following technical solution: a temporary steel foundation for a natural ventilation indirect air-cooled tower with steel pipe concrete X-column, comprising a concrete X-column body and an auxiliary support rod hinged to the concrete X-column body, and a temporary foundation seat located on the front of the concrete X-column body and fixedly installed on the ground, wherein the auxiliary support rod is located at the upper end of the temporary foundation seat. The temporary foundation is provided with an installation mechanism for connecting to the auxiliary support rod; The installation mechanism includes a conical disc fixedly installed on the upper end of the temporary foundation and a connector fixedly installed on the lower end of the auxiliary support rod. The upper end of the conical disc has a slot for guiding the connector into place. An inner support ring is fixedly installed on the inner wall of the conical disc. A flange for overlapping the upper end of the conical disc is fixedly installed on the auxiliary support rod. A protruding ring for supporting the inner support ring is fixedly installed on the lower end of the flange. The temporary foundation is fixed in the preset foundation position. When installing the auxiliary support rod, the connector at the lower end of the auxiliary support rod is quickly guided and seated on the inner support ring by the guiding effect of the conical disc and the slot, completing the rapid and precise docking with the temporary foundation.

[0007] Preferably, two sets of fixed seats are symmetrically provided on the temporary foundation. One set of fixed seats is rotatably connected to a bidirectional screw rod, and the other set of fixed seats is fixedly installed with a guide rod. An arched fixing frame is slidably connected to the two sets of fixed seats. The upper end of the arched fixing frame is detachably installed with a straightening member for clamping the outer wall of the auxiliary support rod. The arched fixing frame is driven by the bidirectional screw rod and can slide horizontally along the guide rod.

[0008] Preferably, the arched fixing frame is in the shape of a triangular arch, with one end of the arched fixing frame away from the guide rod threadedly sleeved with the bidirectional lead screw, and the other end of the arched fixing frame away from the bidirectional lead screw movably sleeved with the guide rod. The triangular arch-shaped structure has excellent bending and torsional stiffness.

[0009] Preferably, movable slots are fixedly installed on both sides of the temporary foundation, one end of the bidirectional lead screw passes through the temporary foundation, and a worm gear seat is installed at the end of the bidirectional lead screw that passes through the temporary foundation. The bottom of the worm gear seat is fixedly installed at the upper end of the movable slot.

[0010] Preferably, the straightening component consists of a base with mounting bolts and an arc-shaped clamping block that matches the arc of the outer surface of the auxiliary support rod. The base is fixedly connected to the upper end of the arched fixing frame by bolts, and the arc-shaped clamping block is installed on the side of the base near the auxiliary support rod. The arc-shaped clamping block and the base are integrally formed.

[0011] Preferably, one end of the bidirectional lead screw that passes through the temporary foundation is fixedly connected to the worm gear interface inside the worm gear seat, and a handwheel is fixedly installed on the worm of the worm gear seat.

[0012] The temporary steel foundation for the X-column, through the combination of a conical disc, slots, and an inner support ring, enables the rapid installation and precise positioning of auxiliary support rods, thereby improving the overall installation efficiency of the X-column steel main body.

[0013] The temporary steel foundation for the X-support column, consisting of an arched fixing frame driven by a worm gear and screw transmission, and a straightening component, can actively straighten and securely lock the auxiliary support column in place, effectively resisting displacement and deformation caused by construction loads or environmental factors, and ensuring the safety of workers during the bolt installation process. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a temporary steel foundation for a natural ventilation indirect air-cooled tower with steel pipe concrete X-column support; Figure 2 This is a structural schematic diagram of the temporary foundation. Figure 3 This is a schematic diagram of the structure at the bottom of the auxiliary support rod.

[0015] 1. Concrete X-shaped support column; 2. Auxiliary support rod; 21. Connector; 22. Flange; 3. Temporary foundation; 31. Movable groove; 32. Fixed seat; 4. Installation mechanism; 41. Conical disc; 42. Slot; 43. Inner support ring; 44. Arched fixing frame; 45. Two-way threaded rod; 46. Straightening component; 47. Guide rod; 48. Worm gear seat; 49. Handwheel. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] This embodiment provides a temporary steel foundation for a natural ventilation indirect air-cooled tower, consisting of a steel tube concrete X-column. Figure 1-3 As shown, the X-column steel temporary foundation includes a concrete X-column body 1, an auxiliary support rod 2 hinged to the concrete X-column body 1, and a temporary foundation seat 3 fixedly installed on the ground on the front of the concrete X-column body 1. The auxiliary support rod 2 is located at the upper end of the temporary foundation seat 3. The temporary foundation 3 is equipped with an installation mechanism 4 for connecting with the auxiliary support rod 2; The installation mechanism 4 includes a conical disc 41 fixedly installed on the upper end of the temporary foundation 3 and a connector 21 fixedly installed on the lower end of the auxiliary support rod 2. The upper end of the conical disc 41 is provided with a slot 42 for guiding the connector 21 into place. An inner support ring 43 is fixedly installed on the inner wall of the conical disc 41. A flange 22 for overlapping the upper end of the conical disc 41 is fixedly installed on the auxiliary support rod 2. A protruding ring for supporting the inner support ring 43 is fixedly installed on the lower end of the flange 22.

[0018] Specifically, when installing the auxiliary support rod 2, its lower end connector 21 is aligned with the slot 42 on the conical disc 41 and inserted to provide guidance for the fit between the conical surface and the slot 42, achieving rapid positioning. After the auxiliary support rod 2 is lowered into place, its flange 22 will fall onto the upper surface of the conical disc 41 due to the insertion of the connector 21. At the same time, the convex ring at the lower end of the flange 22 sits on the inner support ring 43 inside the conical disc 41, forming a stable vertical limit. It is important to note that the top surface of the inner support ring 43 is a flat horizontal surface, and the bottom surface of the convex ring at the lower end of the flange 22 is a matching plane. When the auxiliary support rod 2 is in place, the bottom surface of the convex ring is completely in contact with the top surface of the inner support ring 43, ensuring that the vertical pressure of the auxiliary support rod 2 is evenly transmitted through surface contact. The contact area between the temporary foundation 3 and the flange 22 is not pre-drilled with bolt holes. The actual installation is based on the position of the flange 22 on the temporary foundation 3.

[0019] Two sets of fixed seats 32 are symmetrically provided on the temporary foundation 3. One set of fixed seats 32 is rotatably connected to a two-way screw 45, and the other set of fixed seats 32 is fixedly installed with a guide rod 47. An arched fixing frame 44 is slidably connected on the two sets of fixed seats 32. A straightening member 46 for clamping the outer wall of the auxiliary support rod 2 is detachably installed at the upper end of the arched fixing frame 44.

[0020] More specifically, by driving the bidirectional lead screw 45 to make the two arched fixing frames 44 move synchronously towards or away from each other, the clamping force of the straightening component 46 on the auxiliary support rod 2 can be adjusted or loosened, thereby making the auxiliary support rod 2 more stable during the bolt installation process with the temporary foundation seat 3, and effectively straightening and locking it. The straightening component 46 is connected to the mounting plate at the upper end of the arched fixing frame 44 by bolts. This detachable design allows the straightening component 46 to be replaced according to the different diameters or surface conditions of the auxiliary support rod 2.

[0021] The arched fixing bracket 44 is in the shape of a triangular arch. The end of the arched fixing bracket 44 away from the guide rod 47 is threaded onto the double-acting screw 45, and the end of the arched fixing bracket 44 away from the double-acting screw 45 is movably fitted onto the guide rod 47.

[0022] Furthermore, the triangular arch-shaped structure has excellent bending and torsional stiffness. The threaded engagement between the two-way lead screw 45 and one end of the arch-shaped fixing frame 44 provides driving force, while the sliding engagement between the guide rod 47 and the other end ensures that the movement trajectory is straight, preventing the frame from rotating or jamming.

[0023] Movable grooves 31 are fixedly installed on both sides of the temporary foundation base 3. One end of the bidirectional screw 45 passes through the temporary foundation base 3, and a worm gear seat 48 is installed at the end of the bidirectional screw 45 that passes through the temporary foundation base 3. The bottom of the worm gear seat 48 is fixedly installed at the upper end of the movable groove 31.

[0024] Furthermore, the high reduction ratio of the worm gear allows the operator to generate a huge screw thrust with only a small force when turning the handwheel 49, thus easily clamping the heavy support body. At the same time, the reverse self-locking characteristic of the worm gear drive ensures that the position of the arched fixing bracket 44 can be firmly locked after the handwheel 49 is stopped, and it cannot be pushed back by external force.

[0025] The straightening component 46 consists of a base with mounting bolts and an arc-shaped clamping block that matches the arc of the outer surface of the auxiliary support rod 2. The base is fixedly connected to the upper end of the arched fixing frame 44 by bolts. The arc-shaped clamping block is installed on the side of the base near the auxiliary support rod 2, and the arc-shaped clamping block and the base are integrally formed.

[0026] It should be noted that the arc design increases the contact area with the support body, making the clamping force distribution more uniform. The inner arc surface of the arc-shaped clamping block matches the outer contour of the auxiliary support rod 2.

[0027] The two-way lead screw 45 passes through one end of the temporary foundation 3 and is fixedly connected to the worm gear interface inside the worm gear seat 48. A handwheel 49 is fixedly installed on the worm of the worm gear seat 48.

[0028] In use, the steel temporary foundation 3 provides stable support and leveling for the installation of the auxiliary support rod 2. First, the temporary foundation 3 is fixed in the preset foundation position. When installing the auxiliary support rod 2, the connector 21 at the lower end of the auxiliary support rod 2 is inserted into the slot 42 of the conical plate 41 with the assistance of the crane equipment, using the guiding effect of the conical plate 41 and the slot 42. This completes the quick connection and load-bearing of the auxiliary support rod 2 with the temporary foundation 3. Then, the operator turns the handwheel 49, which reduces the speed and increases the torque through the worm gear seat 48 and drives the double-acting screw 45 to rotate. The rotation of the double-acting screw 45 drives the two arched fixing frames 44 to move synchronously towards each other along the guide rod 47 until the straightening member 46 at the top of the arched fixing frame 44 tightly hugs the outer wall of the auxiliary support rod 2, providing adjustable lateral restraint force, which makes it easier for construction personnel to install.

[0029] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A temporary steel foundation for a natural ventilation indirect air-cooled tower with steel pipe concrete X-column, comprising a concrete X-column body (1) and an auxiliary support rod (2) hinged to the concrete X-column body (1), and a temporary foundation seat (3) fixedly installed on the ground on the front of the concrete X-column body (1), wherein the auxiliary support rod (2) is located at the upper end of the temporary foundation seat (3). Its features are: The temporary foundation (3) is provided with an installation mechanism (4) for connecting with the auxiliary support rod (2); The installation mechanism (4) includes a conical disc (41) fixedly installed on the upper end of the temporary foundation (3) and a connector (21) fixedly installed on the lower end of the auxiliary support rod (2). The upper end of the conical disc (41) is provided with a slot (42) for guiding the connector (21) to be inserted. An inner support ring (43) is fixedly installed on the inner wall of the conical disc (41). A flange (22) for overlapping the upper end of the conical disc (41) is fixedly installed on the auxiliary support rod (2). A convex ring for supporting the inner support ring (43) is fixedly installed on the lower end of the flange (22).

2. The temporary steel foundation for a natural ventilation indirect air-cooled tower with steel pipe concrete X-column as described in claim 1, characterized in that: Two sets of fixed seats (32) are symmetrically provided on the temporary foundation (3). One set of fixed seats (32) is rotatably connected to a two-way screw rod (45), and the other set of fixed seats (32) is fixedly installed with a guide rod (47). An arched fixing frame (44) is slidably connected on the two sets of fixed seats (32). The upper end of the arched fixing frame (44) is detachably installed with a straightening member (46) for clamping the outer wall of the auxiliary support rod (2).

3. The temporary steel foundation for a natural ventilation indirect air-cooled tower with steel pipe concrete X-column as described in claim 2, characterized in that: The arched fixing frame (44) is in the shape of a triangular arch. The end of the arched fixing frame (44) away from the guide rod (47) is threaded onto the bidirectional lead screw (45). The end of the arched fixing frame (44) away from the bidirectional lead screw (45) is movably fitted onto the guide rod (47).

4. The temporary steel foundation for a natural ventilation indirect air-cooled tower with steel pipe concrete X-column as described in claim 3, characterized in that: Movable slots (31) are fixedly installed on both sides of the temporary base (3). One end of the bidirectional screw (45) passes through the temporary base (3), and a worm gear seat (48) is installed at one end of the bidirectional screw (45) that passes through the temporary base (3). The bottom of the worm gear seat (48) is fixedly installed at the upper end of the movable slot (31).

5. The temporary steel foundation for a natural ventilation indirect air-cooled tower with steel pipe concrete X-column as described in claim 4, characterized in that: The straightening component (46) consists of a base with mounting bolts and an arc-shaped clamping block that matches the arc of the outer surface of the auxiliary support rod (2). The base is fixedly connected to the upper end of the arched fixing frame (44) by bolts. The arc-shaped clamping block is installed on the side of the base near the auxiliary support rod (2). The arc-shaped clamping block and the base are integrally formed.

6. The temporary steel foundation for a natural ventilation indirect air-cooled tower with steel pipe concrete X-column as described in claim 5, characterized in that: The bidirectional lead screw (45) passes through one end of the temporary foundation base (3) and is fixedly connected to the worm gear interface inside the worm gear seat (48). A handwheel (49) is fixedly installed on the worm of the worm gear seat (48).

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