A pressure tank disc ladder two-way adjustable sliding support connecting structure

Abstract

The utility model discloses a pressure storage tank disc ladder two -way adjustable sliding support connecting structure, including upper support and lower support, the upper support and lower support are connected through high -strength screw rod and nut between, one side of lower support is equipped with U -shaped groove, the upper support side edge is welded with the transmission board, the transmission board is inserted in the U -shaped groove and has realized the height adjustment change between the upper support and lower support, can effectively adapt to the two -way uneven settlement that pressure storage tank body and disc ladder between because of the foundation difference produce, relieve the stress of connecting part, improve the stability and security of connecting structure, guarantee disc ladder normal use and personnel safety etc. technical features.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure storage tank ladder connection structure in chemical tank farms and the petrochemical industry. Specifically, it is a bidirectional adjustable sliding support connection structure for pressure storage tank ladders, which is used to solve the problem of bidirectional uneven settlement between the pressure storage tank body and the ladder due to foundation differences, and to ensure the safe and stable operation of the ladder. Background Technology

[0002] In chemical tank farms and the petrochemical industry, spiral staircases are crucial connections between storage tanks and the ground, and their foundation stability is of paramount importance. Currently, pressure storage tanks typically use piling methods to stabilize their foundations; however, spiral staircase foundations are mostly unpiled supports built on soft soil. Over time, and influenced by production activities in the tank farm, the differences in foundation configurations can easily lead to uneven settlement. Uneven settlement subjectes the connection between the spiral staircase and the tank body to complex stresses, causing deformation and loosening of the connection structure, and in severe cases, even collapse of the spiral staircase, threatening the safety of operators. Simultaneously, unstable connections can also jeopardize the structural safety of the tank body, affecting the safety and stability of chemical production. Existing spiral staircase-tank connection structures are mostly rigid or simple unidirectional sliding connections, which are ill-suited to bidirectional uneven settlement, unable to effectively alleviate stress at the connection points, and fail to meet the safety and stability requirements of actual production. Therefore, there is an urgent need to design a connection structure that can adjust bidirectionally and adapt to uneven settlement to ensure the safe and stable operation of pressure storage tank spiral staircases. Utility Model Content

[0003] The purpose of this utility model is to provide a bidirectional adjustable sliding support connection structure for pressure tank ladders. Through the bidirectional adjustable sliding design, it can effectively adapt to the bidirectional uneven settlement between the pressure tank body and the ladder caused by the difference in foundation, alleviate the stress at the connection part, improve the stability and safety of the connection structure, and ensure the normal use of the ladder and the safety of personnel.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] This utility model discloses a bidirectional adjustable sliding support connection structure for a pressure storage tank, comprising an upper support and a lower support. The upper and lower supports are connected by a high-strength screw and nut. The side of the lower support is provided with a U-shaped groove, and a transmission plate is welded to the side of the upper support. The transmission plate is inserted into the U-shaped groove to realize the height adjustment between the upper and lower supports.

[0006] Preferably, an upper mounting plate is welded to the bottom of the upper bracket, a lower mounting plate is mounted on the lower bracket, and the screw and nut are connected between the upper mounting plate and the lower mounting plate.

[0007] Preferably, the upper support is connected to a lower support with a top surface, and also includes an upper support with a bottom surface. A spiral ladder is installed on the upper support. The bottom surface of the upper support and the top surface of the lower support are both provided with polytetrafluoroethylene plates with a thickness of 5mm, so that the upper support can slide horizontally with the settlement of the foundation and eliminate shear stress.

[0008] Preferably, the bottom and both sides of the spiral staircase are fitted with channel steel by bolt No. 1, the bottom of the channel steel is connected to the bottom surface, and the bottom surface of the upper support and the top surface of the lower support are connected by bolt No. 2 and nut.

[0009] Preferably, mounting holes are provided on the bottom surface of the upper support and the top surface of the lower support, and the gap between the No. 2 bolt and the mounting hole is 3-5mm to limit excessive sliding and retain displacement compensation space.

[0010] Beneficial effects:

[0011] Adaptable to bidirectional uneven settlement: The height can be adjusted vertically using high-strength screws, while horizontally, the PTFE plate with a specific gap design allows for horizontal sliding displacement of the ladder. This bidirectional adjustment mechanism can effectively cope with uneven settlement caused by foundation differences and ensure the stability of the connection structure.

[0012] Stress relief and safety assurance: Vertical adjustment offsets settlement displacement, while the low-friction sliding interface in the horizontal direction releases shear stress. The dual mechanisms work together to prevent deformation, loosening, or even collapse of the connection structure due to stress concentration, ensuring personnel passage and the safety of the storage tank itself, and improving the safety and stability of chemical production.

[0013] Easy installation and maintenance: It adopts bolt connection, without the need for prefabricated modules, and can realize quick on-site installation and parameter adjustment, adapting to soft soil foundations with different settlement rates;

[0014] The self-lubricating properties of PTFE sheets enable a lubrication-free design and provide load-bearing adjustment capabilities. Regularly tightening the screws can compensate for any additional settlement without disassembling the overall structure, thus reducing long-term maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the connection between the upper and lower supports of this utility model.

[0016] Figure 2 This is a schematic diagram of the upper support structure of this utility model.

[0017] Figure 3 This is a schematic diagram showing the connection between the bottom surface of the upper support and the top surface of the lower support of this utility model. Detailed Implementation

[0018] 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.

[0019] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1-3 The diagram shows a specific embodiment of a bidirectional adjustable sliding support connection structure for a pressure storage tank with a stepped plate. The structure of this embodiment comprises:

[0022] It mainly includes components such as upper support 1, lower support 2, high-strength screw 5, transmission plate 4, polytetrafluoroethylene plate 10, upper support 8, lower support (including top surface 13), channel steel 11, and bolts (No. 1 bolt and No. 2 bolt 12).

[0023] Vertical Settlement Adjustment Structure - Connection between Upper and Lower Supports: The upper support 1 and the lower support 2 are connected by a high-strength screw 5 and a nut. An upper mounting plate 6 is welded to the bottom of the upper support 1, and a lower mounting plate 7 is mounted on the lower support 2. The screw 5 and nut are connected between the upper mounting plate 6 and the lower mounting plate 7. A U-shaped groove 3 is provided on the side of the lower support 2, and a transmission plate 4 is welded to the side of the upper support 1. The transmission plate 4 is inserted into the U-shaped groove 3, thereby achieving height adjustment between the upper support 1 and the lower support 2.

[0024] The adjusting screw is preferably an M20×300mm, 8.8 grade high-strength screw, with the lower end fixed to the lower support (related structure of the lower support). Alternatively, the upper end can be tightened with a nut after passing through a spring washer (preload 2-4kN), a transition plate, and a pad, which can achieve a height adjustment of ±50mm to offset the vertical settlement difference. The inner wall of the U-shaped groove (3) of the lower support can be coated with lubricating oil or other lubrication measures can be taken to provide a vertical sliding surface, limit excessive horizontal displacement, and ensure the stability of the vertical adjustment process.

[0025] Horizontal Displacement Compensation Structure - Connection between Upper and Lower Supports: The upper support 1 is connected to a lower support with a top surface 13. A spiral ladder 9 is installed on the upper support 8. Both the bottom surface of the upper support 8 and the top surface 13 of the lower support are covered with PTFE plates 10, 5mm thick, with a friction coefficient ≤0.08, covering more than 90% of the connection area. The bottom surface of the upper support 8 and the top surface 13 of the lower support are connected by No. 2 bolts 12 and nuts. The gap between the No. 2 bolts 12 and the mounting holes on the upper and lower supports is 3-5mm, which limits excessive sliding while preserving displacement compensation space. Channel steel 11 is installed on the bottom and both sides of the spiral ladder 9 by No. 1 bolts. The bottom of the channel steel 11 connects to the bottom surface of the upper support 8, enhancing the stability of the connection between the spiral ladder and the upper support. The polytetrafluoroethylene plate 10 on the bottom surface of the upper support 8 and the top surface of the lower support 13 forms a low-friction sliding interface, allowing the spiral ladder to slide horizontally with the settlement of the foundation (displacement ≤ ±20mm), eliminating shear stress; the gap design between the No. 2 bolt 12 and the mounting hole plays a limiting protection role, balancing displacement compensation and the risk of excessive sliding.

[0026] Settlement adaptation process - real-time monitoring: Settlement observation points can be set up in relevant locations to regularly record the vertical settlement and horizontal displacement data of the foundation, providing a basis for subsequent adjustments.

[0027] Dynamic adjustment: Based on the data obtained from settlement observation, the vertical height of the rotating screw 5 is adjusted to compensate for the vertical settlement difference; at the same time, the upper support is manually slid by utilizing the gap between the upper support 8 and the lower support, the second bolt 12 and the mounting hole, to achieve horizontal displacement compensation, thereby completing bidirectional deformation compensation.

[0028] Long-term maintenance: Periodically (can be set according to actual settlement and maintenance cycle) by turning screw 5 to compensate for the increased settlement, check the wear of PTFE plate 10 (due to its self-lubricating properties, wear is generally slow), and the tightness of bolt connections, etc., without disassembling the overall structure, ensuring the long-term stable operation of the connection structure.

[0029] Through the coordinated action of various components, bidirectional adjustment is achieved to adapt to uneven settlement and ensure the safe and stable operation of the ladder.

[0030] Finally, it should be noted that this utility model is not limited to the above embodiments, and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A bidirectional adjustable sliding support connection structure for a pressure storage tank with a stepped plate, characterized in that: It includes an upper support (1) and a lower support (2), which are connected by a high-strength screw (5) and a nut. The lower support (2) has a U-shaped groove (3) on its side. A transmission plate (4) is welded on the side of the upper support (1). The transmission plate (4) is inserted into the U-shaped groove (3) to realize the height adjustment between the upper support (1) and the lower support (2).

2. The bidirectional adjustable sliding support connection structure for a pressure storage tank with a stepped platform according to claim 1, characterized in that: The upper bracket (1) has an upper mounting plate (6) welded to its bottom, and the lower bracket (2) has a lower mounting plate (7) installed on it. The screw (5) and nut are connected between the upper mounting plate (6) and the lower mounting plate (7).

3. The bidirectional adjustable sliding support connection structure for a pressure storage tank according to claim 1 or 2, characterized in that: The upper support (1) is connected to a lower support with a top surface (13) at its upper end, and also includes an upper support (8) with a bottom surface. A spiral ladder (9) is installed on the upper support (8). The bottom surface of the upper support (8) and the top surface (13) of the lower support are both provided with polytetrafluoroethylene plates (10) with a thickness of 5mm, so that the upper support (8) can slide horizontally with the settlement of the foundation and eliminate shear stress.

4. The bidirectional adjustable sliding support connection structure for a pressure storage tank with a stepped platform according to claim 3, characterized in that: The bottom and both sides of the spiral staircase (9) are fitted with channel steel (11) by bolt No.

1. The bottom of the channel steel (11) is connected to the bottom surface. The bottom surface of the upper support (8) and the top surface (13) of the lower support are connected by bolt No. 2 (12) and nut.

5. The bidirectional adjustable sliding support connection structure for a pressure storage tank with a stepped platform according to claim 4, characterized in that: Mounting holes are provided on the bottom surface of the upper support (8) and the top surface (13) of the lower support. The gap between the second bolt (12) and the mounting hole is 3-5mm to limit excessive sliding and retain displacement compensation space.

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