A position-adjustable hanger device

Abstract

This utility model relates to the field of pipe and equipment supports and hangers, and is a hanger device with automatic position adjustment. It is particularly suitable for pipes and equipment operating under high-parameter conditions such as high temperature and high pressure, and in complex environments, such as thermal power plants, heating, and oil refining pipelines. Through the coordinated design of the tray 1, universal ball 2, bearing plate 3, and hanger rod 4, the hanger rod can achieve real-time adaptive adjustment, ensuring that the hanger rod deflection meets standard requirements throughout the entire life cycle of the hanger, guaranteeing the safe and stable operation of the equipment, and significantly reducing the hanger's reliance on traditional offset installation processes and subsequent maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of pipe and equipment supports and hangers, and is a hanger device with automatic position adjustment. It is particularly suitable for pipes and equipment operating under high-parameter conditions such as high temperature and high pressure, and in complex environments, such as thermal power plants, heating, and oil refining pipelines. Through the coordinated design of the tray 1, universal ball 2, bearing plate 3, and hanger rod 4, the hanger rod can achieve real-time adaptive adjustment, ensuring that the hanger rod deflection meets standard requirements throughout the entire life cycle of the hanger, guaranteeing the safe and stable operation of the equipment, and significantly reducing the hanger's reliance on traditional offset installation processes and subsequent maintenance costs. Background Technology

[0002] Traditional hangers used in thermal power plants, heating systems, and oil refining pipelines have the following problems:

[0003] The tolerance and cumulative errors in traditional pipe support design lead to widespread pipe support misalignment. The current national recommended standard for pipe supports, GB / T 17116-2018, still contains some empirical formulas and non-unique empirical values, and in some scenarios, it grants designers considerable discretion in selection and combination. This results in the performance and durability of pipe supports being significantly affected by the designer's skill level and subjectivity. Furthermore, multiple errors, including design errors, manufacturing errors, installation errors, and operating condition errors (abnormal fluctuations in equipment and pipeline parameters exceeding allowable operating conditions, such as overheating and overpressure), create a cumulative effect, ultimately leading to frequent pipe support misalignment in actual production.

[0004] Throughout the entire life cycle of the support and hanger, the performance deteriorates, leading to hanger skewness: After long-term operation, the support and hanger are susceptible to the effects of uncontrollable factors such as pile foundation settlement, aging and deformation of equipment and pipelines, water hammer vibration, rust and dust accumulation in mechanical structures, sudden natural disasters, and external interference. The performance deterioration can also lead to abnormal phenomena such as hanger skewness.

[0005] Traditional hanger base structures cannot be automatically adjusted, and both installation and subsequent adjustments after misalignment heavily rely on offset mounting. Traditional hangers are basically fixed base structures and cannot achieve automatic adjustment. During hanger installation, considering the misalignment caused by the normal expansion of equipment and pipelines, the hanger base needs to be pre-offset in the direction of the misalignment. When the hanger misaligns again due to various interference factors, manual intervention is required to adjust the base position to ensure that the hanger meets the angle requirements in GB / T 17116-2018 Pipeline Supports and Hangers.

[0006] Traditional off-center installation of scaffolding is costly: Since most scaffolding supports are located outdoors or in suspended positions, manual intervention for off-center installation at the base involves work such as scaffolding erection, measurement, hoisting, cutting, and steel structure relocation, resulting in high construction costs.

[0007] Traditional hanger maintenance is delayed: generally, after hanger misalignment is discovered, it is necessary to wait for the equipment to be shut down before it can be dealt with. However, some equipment and pipelines have long operating cycles, and it is impossible to adjust them immediately after the misalignment exceeds the standard. As a result, after the hanger misalignment occurs, the equipment and pipelines are in an abnormal stress state for a long time, which can easily induce other unforeseen secondary defects and affect the service life of the equipment and pipelines.

[0008] In summary, the skewness of traditional hangers is a common problem. They cannot be adjusted automatically and rely on misalignment. Manual intervention is costly and time-consuming. There is an urgent need for a new type of hanger device that can automatically adapt to multi-directional movement, which can reduce the occurrence of deviation and solve the problems of high cost and time delay in manual intervention. Summary of the Invention

[0009] The purpose of this utility model is to provide a hanger device that can automatically adjust its position, thereby solving the problems mentioned in the background art, such as the widespread problem of skewness in traditional hangers, the inability to self-adjust, reliance on misalignment, high cost of manual intervention, and delays. To achieve the above objective, this utility model provides the following technical solution:

[0010] 1. The pallet 1 serves as an overall support device, with raised steps around its perimeter for limiting movement and preventing it from falling off, and a central opening for the lifting rod 4 to pass through;

[0011] 2. The omnidirectional ball joint 2 is installed and fixed to the bottom of the support plate 3, and is placed on the pallet 1 together with the support plate 3. It can move in any direction within the plane of the pallet 1, but cannot come off the steps around the pallet 1. The number and load-bearing capacity of the omnidirectional ball joint 2 are selected according to the load-bearing requirements, and the stability of the force must be ensured.

[0012] 3. The bearing plate 3 is used for the installation and fixation of the universal ball 2, and the center hole is connected to the hanger 4 to transfer the load of the hanger 4 to the universal ball 2;

[0013] 4. The hanger 4 is the hanger of the hanger, which transmits the load-bearing force and the deflection force to the load-bearing plate 3 and the universal ball 2, thereby realizing adaptive deflection.

[0014] The innovation of this utility model lies in:

[0015] Innovation Point 1: Adaptive Structure of the Omnidirectional Ball and Pallet: The hanger 4 transmits the load to the omnidirectional ball 2 through the bearing plate 3. Affected by the load, the omnidirectional ball 2 rolls freely within the effective plane of the pallet 1, realizing automatic adjustment of the real-time position of the hanger root. Unlike traditional hanger fixing devices, the omnidirectional ball significantly improves the degree of freedom, can adapt to displacement in any direction, and avoids hanger tilting.

[0016] Innovation Point 2: Reduced dependence on offset mounting for hangers: Through simple geometric calculations, the adjustment range of the designed hangers is accurately deduced, eliminating the need for offset mounting. The hangers adjust themselves automatically, ensuring that the omnidirectional ball does not detach from the tray and that the hanger rod skewness always meets the standard (rigid hangers ≤3°, flexible hangers ≤4°).

[0017] Innovation Point 3: Irregularly Shaped Trays and Adjustable Openings: Tray 1 and Load-bearing Plate 3 can be designed as elliptical or asymmetrical shapes, and the size and shape of the openings can be flexibly adjusted according to actual working conditions; the load-bearing capacity of the universal ball 2 is selected based on the stress calculation of the pipeline and equipment, and the quantity can be selected according to actual needs to adapt to complex spatial environments.

[0018] Innovation Point 4: Timeliness of Adjustment: Through the dynamic design of automatic adjustment, the timely correction of the hanger after deviation is ensured, avoiding abnormal stress and secondary defects in the main equipment or pipeline caused by long-term deviation of the support and hanger, and extending the service life of the equipment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the following will briefly explain the drawings used in the description of conventional and general embodiments. However, the described drawings are only one conventional and general embodiment of this utility model, and not all embodiments:

[0020] Figure 1 A three-dimensional schematic diagram of the assembly relationship of a conventional embodiment of this utility model.

[0021] Figure 2 This is a schematic cross-sectional view of a conventional embodiment of this utility model.

[0022] Figure 3 This is a top view of the relative positions of various parts in a conventional embodiment of this utility model.

[0023] Figure 4 This is a schematic diagram of the motion trajectory of a conventional embodiment of this utility model. Figure 1 .

[0024] Figure 5 This is a schematic diagram of the motion trajectory of a conventional embodiment of this utility model. Figure 2 .

[0025] Figure 6 This is a schematic diagram of the motion trajectory of a conventional embodiment of this utility model. Figure 3 .

[0026] Figure 7 This is a schematic diagram of the motion trajectory of a conventional embodiment of this utility model. Figure 4 .

[0027] Figure 8This is a schematic diagram of the motion trajectory of a conventional embodiment of this utility model. Figure 5 .

[0028] Figure 9 This is a geometric relationship diagram derived from a conventional embodiment of this utility model. Detailed Implementation

[0029] This section will describe in detail specific implementation examples of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0030] In the description of this invention, it should be understood that the orientation descriptions are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0031] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. One embodiment of this utility model is a hanger device that can automatically adjust its position, such as... Figure 1 As shown, the components include: pallet 1, omnidirectional ball 2, load-bearing plate 3, and hanger rod 4. The specific assembly configuration is that pallet 1 is installed above the steel structure as follows: Figure 2 As shown, the omnidirectional ball 2 is installed below the support plate and placed on the tray 1. The hanger 4 passes through the center opening of the support plate 3 and the center opening of the tray, and its lower end is connected to the equipment, a variable force spring mechanism, or a constant force spring mechanism. Because the omnidirectional ball moves randomly on the tray 1, when the hanger 4 is tilted or subjected to lateral force, it will be transmitted to the support plate 3 and drive the omnidirectional ball 2 to move. At the same time, in order to prevent the omnidirectional ball 2 from falling to the outer edge of the tray 1, a raised step is provided on the side of the tray 1 to prevent the omnidirectional ball 2 from running off the edge of the tray.

[0033] The movement of the omnidirectional ball 2 within the effective area of ​​tray 1 is referenced. Figure 3 The relative positions are used for deduction. Figure 3In this diagram, a, b, c, and d represent the relative positions of the omnidirectional ball 2; e represents the outer edge of the tray 1; f represents the relative position of the hanger 4; g represents the edge of the center opening of the tray 1; and h represents the circle containing the center of the omnidirectional ball 2. Since the omnidirectional ball 2 is fixed to the support plate 3, its relative positions are fixed. The circle is a virtual circle with the center of the support plate 3 as its center and the distance from the center of the omnidirectional ball 2 to the center of the support plate 3 as its radius (hereinafter referred to as the circle containing the center of the omnidirectional ball 2).

[0034] 1. First, make the following assumptions about the dimensions of pallet 1, omnidirectional balls 2, etc.: the effective radius of pallet 1 is R1; the effective radius of the center opening of pallet 1 is R2; the radius of omnidirectional ball 2 is R3; the radius of the circle containing the center of omnidirectional ball 2 is R4; further assume that omnidirectional ball 2 a is close to the outer edge of the pallet and its position is fixed, while the other omnidirectional balls 2 rotate with the support plate 3. Then, the trajectory of omnidirectional ball 2 c is an arc with a radius of 2R4 and the center of omnidirectional ball 2 a. Figure 4 As shown.

[0035] When the omnidirectional ball 2 (b or d) rotates to the outer edge of the tray, the support plate 3 can no longer rotate around the omnidirectional ball 2 (a). If we then assume that the support plate 3 is still under external force and continues to rotate around the omnidirectional ball 2 (b or d), the trajectory of the omnidirectional ball 2 (c) becomes an arc centered on the omnidirectional ball 2 (b or d). The arc has a radius equal to the distance from the center of the omnidirectional ball 2 (b or d) to the center of the omnidirectional ball 2 (c). Figure 5 As shown, the trajectory after the two trajectories are superimposed is as follows: Figure 6 As shown, its periodic trajectory can be derived from this deduction. Figure 7 As shown.

[0036] Therefore, the condition for omnidirectional ball 2 not to fall into the center opening of tray 1 is that the trajectory of omnidirectional ball 2 is tangent to the edge of the center opening of tray 1. At this time: R2 + R1 = R3 + 2R4

[0037] Therefore, to ensure that the omnidirectional ball 2 does not fall into the tray opening, the hanger design should satisfy: R2 + R1 < R3 + 2R4

[0038] 2. Assuming that both omnidirectional balls 2 and 3 are rotating close to the edge of tray 1, the range of motion of the hanger 4 is at its maximum, which is the maximum automatic adjustment range of the hanger device in this embodiment that can automatically adjust its position. Figure 8 As shown.

[0039] Therefore, the maximum automatic adjustment range of the automatically adjustable hanger device in this embodiment is a circle with the center of the tray 1 as its center and the distance between the center of the circle containing the center of the universal ball 2 and the center of the tray 1 as its radius. Its geometric relationship diagram is as follows: Figure 9 As shown, let the key points in this geometric relationship be points A, B, C, D, and E.

[0040] Based on fundamental geometric principles, the following parameters can be obtained: AD = R1 - R3; ∠BED = 90°; ∠EBC = ∠EDC = 45°; ∠EBC = ∠EDC = 90°; ED = AB = R4; Let the length of AE, i.e., the radius of the effective adjustment region to be solved, be Rt, then its radius is:

[0041]

[0042] Therefore, the automatic adjustment range of the automatically adjustable hanger device of this embodiment is any position on the plane of the tray 1 with the center of the circle as the center and the distance from the center to the circle being less than Rt.

[0043] The above deductions are based on Figure 3 The conventional, ordinary embodiment of relative positioning is only suitable for Figure 3 The conventional implementation of the relative position is as described above. However, if the tray 1 is irregularly shaped or the relative position changes during the actual design process, the design should follow the above-described approach.

[0044] The above embodiments are further explanations of the present invention, but should not be construed as limiting the scope of the present invention to the above embodiments. All technologies implemented based on the above content fall within the scope of the present invention.

[0045] The above-described embodiments only illustrate a specific implementation of a common configuration of this utility model. Without departing from the concept of this utility model, the technical solution can be improved and changed according to testing requirements. For example, the restricted position can be changed to an elliptical shape, the size of the opening can be modified by changing the size of the opening on the tray 1 to change the adjustment amount of the hanger, and the shape of the opening can be changed to limit the offset in a certain opposite direction. All of these are within the protection scope of this utility model. The protection scope of this utility model shall be determined by the appended claims.

Claims

1. A hanger device with automatically adjustable position, characterized in that, include: Tray (1): It is provided with raised steps to prevent the universal ball (2) from falling out, and has a central opening for the hanger (4) to pass through; Omnidirectional ball (2): It is installed and fixed at the bottom of the support plate (3) and placed on the tray (1) together with the support plate (3). It can roll in any direction within the effective range of the tray (1); Load-bearing plate (3): used for mounting and fixing the universal ball (2), and with a central hole for connecting the hanger rod (4) to transfer the load of the hanger rod (4) to the universal ball (2); Hanger (4): The hanger of the hanger transmits the load-bearing force and deflection force to the load-bearing plate (3) and the universal ball (2) to achieve adaptive deflection.

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