Anti-inclination spring support and using method thereof

Abstract

The invention discloses an anti-inclination spring support and a using method thereof. The lower end of a spring outer barrel is fixed to a lower end plate, a pressing plate is arranged in the spring outer barrel, a spring is installed between the pressing plate and the bottom of the spring outer barrel, a bearing column is arranged at the upper end of the pressing plate and is in threaded connection with the pressing plate, and the upper end of the bearing column is connected with a bearing plate; the anti-inclination auxiliary supporting columns are distributed in the 0 o'clock direction, the 3 o'clock direction, the 6 o'clock direction and the 9 o'clock direction of the spring outer cylinder body, metal expansion joints are connected in the anti-inclination auxiliary supporting columns, the maximum compensation amount of the expansion joints is the design displacement amount of the pipeline in the vertical direction at the position, and the tops of the anti-inclination auxiliary supporting columns are provided with auxiliary bearing plates. The area between the anti-inclination auxiliary supporting column and the spring bearing plate is increased, the stress borne by the end of the anti-inclination auxiliary supporting column is reduced, and the overall structural stability is improved.

Description

Technical Field

[0001] The invention relates to a spring bracket, in particular to an anti-tilt spring bracket and a use method thereof. Background Art

[0002] In the fields of electricity, petrochemicals, etc., considering the factors of thermal expansion and thermal displacement of the pipeline itself, many pipelines will use spring supports as supports. While providing support loads, the compression and extension of the spring are used to absorb the displacement of the pipeline. This is especially true for long-distance heating and steam supply pipelines. Because the pipelines are long, the cost of using hangers is high. Therefore, spring supports are often used to carry the load and release the displacement of the pipelines during the design stage.

[0003] At present, most of the spring supports for heating and steam supply pipelines are Figure 3 In the form of a pipe clamp, the pipe clamp is placed on the spring bearing plate and the bottom of the spring is fixed in cement.

[0004] In actual operation, due to the high temperature of the heating and steam supply pipeline, the pipeline at the spring support often has a large three-dimensional displacement. After the pipeline is thermally displaced, the spring bearing plate tilts and the spring support also deflects to a certain extent. When the pipeline is shut down and cold, due to the tilt of the spring support, the spring and the pipeline are no longer simply acting in the vertical direction. The spring will divide part of the original vertical load into the horizontal direction, making it difficult for the pipeline to return to the cold position; at the same time, because there is a rigid contact between the pipe clamp and the spring bearing plate, the relative movement between the two will produce a large friction force, which increases the difficulty of restoring the pipeline to the cold position. The spring support always maintains a certain degree of tilt. After the reciprocating start-stop process, the inclination of the spring bearing plate will only increase, and the pipeline will deviate from the original design position more and more obviously. In severe cases, it will cause the pipeline to fall directly from the spring bearing plate, which will have an extremely adverse impact on the normal operation of the equipment and the personal safety of personnel. Summary of the invention

[0005] The purpose of the present invention is to overcome the disadvantages of the above-mentioned prior art and provide an anti-tilt spring bracket and a method of using the same, which can reduce the degree of spring tilt and avoid abnormal large displacement of the supported equipment.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: The present invention provides an anti-tilt spring bracket, comprising a bearing plate, a bearing column, a metal expansion joint, a lower end plate, a spring, a spring outer cylinder and an anti-tilt auxiliary support column; The lower end of the spring outer cylinder is fixed to the lower end plate, a pressure plate is arranged in the spring outer cylinder, a spring is installed between the pressure plate and the bottom of the spring outer cylinder, a bearing column is arranged at the upper end of the pressure plate, and is threadedly connected to the pressure plate, and the upper end of the bearing column is connected to the support plate; A plurality of anti-tilt auxiliary support columns are evenly distributed on the circumference of the outer cylinder of the spring between the bearing plate and the lower end plate, and a plurality of anti-tilt metal expansion joints are connected in each anti-tilt auxiliary support column.

[0007] A further improvement of the present invention is that a plurality of anti-tilt auxiliary support columns are distributed at the 0 o'clock, 3 o'clock, 6 o'clock and 9 o'clock directions of the spring outer cylinder.

[0008] A further improvement of the present invention is that the maximum compensation amount of the metal expansion joint is the designed vertical displacement amount of the pipeline at that position.

[0009] A further improvement of the present invention is that a plurality of metal expansion joints are provided on the same anti-tilt auxiliary support column to increase the permissible value of the deflection.

[0010] A further improvement of the present invention is that the metal expansion joint is a bellows, and the bellows is provided with a guide rod.

[0011] A further improvement of the present invention is that the top of each anti-tilt auxiliary support column is fixed to the bearing plate by means of threads.

[0012] A further improvement of the present invention is that the axis of the bearing column coincides with the axis of the spring, the upper end of the bearing column contacts the bearing plate, and the bearing column and the bearing plate are provided with relative displacement; when the bearing plate is offset, the bearing column is not subjected to eccentric force.

[0013] A further improvement of the present invention is that the lower end plate is fixed to the base by bolts.

[0014] A further improvement of the present invention is that an anti-tilt auxiliary bearing plate is provided between the bearing plate and each anti-tilt auxiliary support column.

[0015] The present invention also provides a method for using an anti-tilt spring bracket, including: when the main pipeline compresses the spring under the action of thermal displacement and thermal expansion, the metal expansion joint in the anti-tilt auxiliary support column is driven to produce an offset allowed by the design; when the main pipeline is displaced in the horizontal direction, the spring and the anti-tilt auxiliary support column simultaneously play a supporting role, and the spring and the load-bearing column are not affected by eccentric force.

[0016] Compared with the prior art, the present invention has at least the following beneficial technical effects: The present invention provides an anti-tilt spring bracket and a method for using the same. In a specific operation process, when the main pipeline is subjected to thermal displacement and thermal expansion, corresponding forces and deformations will be generated, and these forces and deformations will be transmitted to the spring connected thereto, causing it to be compressed. In this process, the metal expansion joint in the anti-tilt auxiliary support column is designed to maintain the same displacement characteristics as the spring. This means that when the spring is compressed due to the thermal expansion of the main pipeline, the metal expansion joint will also deform accordingly, absorbing and relieving part of the stress generated by the thermal expansion, thereby ensuring the stability and coordination of the entire support system. Further, when the main pipeline is displaced in the horizontal direction, this displacement will not only act on the spring, but also affect the anti-tilt auxiliary support column. In this case, the spring and the anti-tilt auxiliary support column play a supporting role together, forming a double support system. This design effectively eliminates the cantilever beam structure of the spring with one-sided support that may have existed before, and avoids the problem of uneven force and tilt of the load-bearing plate caused by the one-sided support. Through this double support system, the spring load-bearing plate can maintain a more stable and horizontal state when it is affected by the horizontal displacement of the main pipeline. This not only reduces the tilt of the spring bearing plate, but even avoids the tilt to a large extent, thereby greatly reducing the risk of the pipeline slipping due to the tilt of the bearing plate. This design not only improves the safety and reliability of the pipeline system, but also provides a strong guarantee for the long-term stable operation of the system.

[0017] In summary, the interaction and design between the main pipeline under thermal displacement and thermal expansion and the spring, anti-tilt auxiliary support column and metal expansion joint significantly improves the overall performance and stability of the pipeline system by maintaining consistent displacement characteristics, forming a double support system, eliminating cantilever beam structure, reducing or even avoiding the tilt of the load-bearing plate, and reducing the risk of pipeline slippage. This design has extremely broad application prospects and practical value in pipeline systems that need to withstand thermal expansion, horizontal displacement, and maintain high stability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 Cross-section view along the AA direction; Figure 3It is a structural schematic diagram of the prior art.

[0020] Description of reference numerals: 1 is a bearing plate, 2 is a bearing column, 3 is a metal expansion joint, 4 is a lower end plate, 5 is a spring, 6 is a spring outer cylinder, 7 is an anti-tilt auxiliary support column, and 8 is an anti-tilt auxiliary bearing plate. DETAILED DESCRIPTION

[0021] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0027] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0028] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0029] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] Example 1 refer to Figure 1 to Figure 2 The anti-tilt spring bracket described in the present invention includes a bearing plate 1, a bearing column 2, a metal expansion joint 3, a lower end plate 4, a spring 5, a spring outer cylinder 6, an anti-tilt auxiliary support column 7 and an anti-tilt auxiliary bearing plate 8.

[0031] The lower end of the spring outer cylinder 6 is fixed on the lower end plate 4, and a pressure plate is arranged inside the spring outer cylinder 6. A spring 5 is installed between the pressure plate and the lower end plate 4. The bearing column 2 is arranged at the upper end of the pressure plate and is threadedly connected to the pressure plate. The upper end of the bearing column 2 is connected to the supporting plate 1; each anti-deflection and anti-tilt auxiliary support column 7 is distributed at 0 o'clock, 3 o'clock, 6 o'clock and 9 o'clock directions of the spring outer cylinder, and a metal expansion joint 3 is connected in each anti-deflection and anti-tilt auxiliary support column 7. The maximum compensation amount of the metal expansion joint 3 is the designed vertical displacement of the pipeline at this position, and an anti-tilt auxiliary bearing plate 8 is installed on the top of each anti-tilt auxiliary support column 7 to increase the area between the anti-tilt auxiliary support column and the spring bearing plate, reduce the stress on the end of the auxiliary bearing column 7, and increase the stability of the overall structure.

[0032] Among them, the fixed connection between the spring outer cylinder 6 and the lower end plate 4, and the spring 5 installed between the pressure plate and the lower end plate 4, form a stable spring support system. This design can effectively absorb and alleviate the vertical load and vibration from the upper bearing column 2 and the support plate 1, and improve the dynamic stability of the overall structure.

[0033] The arrangement of the anti-deflection and anti-tilt auxiliary support columns 7, especially the distribution in the 0, 3, 6 and 9 o'clock directions, provides additional lateral support for the structure, effectively prevents the structure from deflecting and tilting in the horizontal direction, and further enhances the overall stability.

[0034] The introduction of the metal expansion joint 3 allows the structure to have a certain displacement compensation capability in the vertical direction. The maximum compensation amount is designed to be the vertical displacement of the pipeline at this position, ensuring that the integrity and functionality of the connection can be maintained when the structure is subjected to thermal expansion or contraction in the vertical direction, thereby improving the adaptability and durability of the structure.

[0035] The installation of the anti-tilt auxiliary bearing plate 8 increases the contact area between the anti-tilt auxiliary support column 7 and the spring bearing plate (i.e., the pressure plate). This design helps to disperse and reduce the stress on the end of the auxiliary bearing column 7, avoids stress concentration, and thus improves the bearing capacity and safety of the structure.

[0036] The threaded connection design between the bearing column 2 and the pressure plate allows the height of the bearing column 2 to be adjusted according to actual needs, which provides convenience for the installation, maintenance and commissioning of the structure.

[0037] A plurality of metal expansion joints 3 are arranged on the same anti-tilt auxiliary support column 7 to increase the permissible value of deflection. By arranging a plurality of metal expansion joints on the same support column, the permissible displacement of the structure in the horizontal direction (i.e., the deflection direction) can be significantly increased. This is because the metal expansion joint itself has a certain expansion and bending capacity, which can absorb and alleviate the horizontal displacement caused by external force or temperature change. The series or parallel arrangement of multiple expansion joints can further improve this displacement absorption capacity, so that the structure can still maintain stability and functionality when facing large horizontal forces or temperature changes. The design of multiple metal expansion joints increases the flexibility of the structure, so that the structure can better adapt to changes in the external environment. Whether under the action of dynamic loads such as earthquakes and wind loads, or in the process of thermal expansion or contraction caused by temperature changes, the structure can absorb and alleviate these effects through the deformation of the expansion joint. Arranging multiple expansion joints on a single support column can disperse the stress concentration caused by horizontal displacement. Each expansion joint bears a part of the displacement and stress, thereby avoiding excessive stress concentration at a single node and improving the overall safety and durability of the structure. The design of multiple metal expansion joints makes it easier for the structure to adapt to different working conditions and conditions. Whether it is pre-adjusting the structure at the initial stage of construction or maintaining or modifying the structure during long-term use, multiple expansion joints provide more adjustment space and possibilities.

[0038] The metal expansion joint 3 is a bellows, which is provided with a guide rod to ensure the docking accuracy of the bellows with other system components, limit the free movement and deviation of the bellows, prevent lateral or radial deformation of the bellows, and evenly distribute the external pressure.

[0039] The setting of the guide rod ensures the docking accuracy between the bellows and other system components. In complex engineering systems, accurate docking between components is crucial, which is related to the stability and functionality of the entire system. The guide rod limits the free movement and offset of the bellows, so that the bellows can still maintain accurate docking with adjacent components when subjected to external forces or temperature changes. As a flexible connector, the bellows has certain expansion and contraction and bending capabilities. However, in some applications, excessive free movement and offset may cause damage to the bellows or failure of system functions. The design of the guide rod effectively limits the free movement and offset of the bellows, so that it can maintain a stable motion trajectory while meeting the expansion and contraction requirements. The bellows is prone to lateral or radial deformation when subjected to external pressure or lateral force. This deformation not only affects the performance of the bellows, but may also cause damage to adjacent components. The setting of the guide rod can effectively prevent the lateral or radial deformation of the bellows and protect the bellows and adjacent components from damage.

[0040] The top of each anti-tilt auxiliary support column 7 is fixed to the bearing plate 1 by a thread. The axis of the bearing column 2 coincides with the axis of the spring 5, and the upper end of the bearing column 2 contacts the bearing plate 1, allowing the bearing column 2 and the bearing plate 1 to have relative displacement. When the bearing plate 1 deviates, the bearing column 2 is not subjected to eccentric force. The lower end plate 4 is fixed to the base by bolts according to the actual installation situation.

[0041] The top of each anti-tilt auxiliary support column 7 is fixed to the bearing plate 1 by threads. This connection method ensures a firm connection between the support column and the bearing plate, and enhances the stability of the overall structure. The threaded connection has good shear strength and pull-out resistance, and can resist the damage of the structure to the external force. The axis of the bearing column 2 coincides with the axis of the spring 5, and the upper end of the bearing column 2 is in contact with the bearing plate 1 but allows relative displacement. This design enables the bearing column 2 to adjust its position with the slight displacement of the bearing plate 1 when bearing a vertical load, thereby reducing the stress concentration phenomenon. When the bearing plate 1 is offset, the bearing column 2 is not subjected to eccentric force, avoiding the bending or damage of the bearing column 2 caused by eccentric force. The relative displacement design between the bearing column 2 and the bearing plate 1 enhances the adaptability of the structure. Under temperature changes, vibrations or external forces, the bearing plate 1 may undergo slight displacement, and the relative displacement capacity of the bearing column 2 enables the structure to adapt to such changes and maintain overall stability and functionality. The lower end plate 4 is fixed to the base by bolts according to the actual installation situation. This connection method is simple and reliable, and is easy to install and maintain. The bolted connection is removable, allowing it to be easily removed and reinstalled when parts need to be replaced or repaired.

[0042] Example 2 The present invention provides a method for using an anti-tilt spring bracket, comprising: When the main pipeline compresses the spring 5 under the action of thermal displacement and thermal expansion, the metal expansion joint 3 in the anti-tilt auxiliary support column 7 is driven to produce a deviation allowed by the design. When the main pipeline is displaced in the horizontal direction, the spring 5 and the anti-tilt auxiliary support column 7 play a supporting role at the same time, and the spring 5 and the load-bearing column 2 are not affected by eccentric force.

[0043] When the main pipeline compresses the spring 5 under the action of thermal displacement and thermal expansion, the spring 5 can absorb and alleviate the expansion force caused by temperature change. This helps to prevent the main pipeline from generating excessive stress or deformation due to thermal expansion, thereby protecting the integrity and safety of the pipeline system. The compression of the spring 5 also drives the metal expansion joint 3 in the anti-tilt auxiliary support column 7 to produce a design-allowed offset. This offset is expected and within the design range, allowing the pipeline system to adapt to small displacements caused by thermal expansion or external forces while maintaining overall stability. When the main pipeline is displaced in the horizontal direction, the spring 5 and the anti-tilt auxiliary support column 7 play a supporting role at the same time. This dual support system enhances the stability of the pipeline system in the horizontal direction and prevents tilting or collapse caused by horizontal displacement. The design ensures that the spring 5 and the bearing column 2 are not subjected to eccentric forces. This means that when the pipeline system is subjected to external forces or temperature changes, the spring 5 and the bearing column 2 can maintain their original mechanical properties and will not bend, twist or be damaged due to eccentric forces.

[0044] It should be noted that the present invention utilizes the metal expansion joint 3 installed in the anti-tilt auxiliary support column to ensure that the spring 5 and the anti-tilt auxiliary support column 7 maintain synchronous displacement, thereby avoiding the influence on the thermal expansion or thermal displacement of the pipeline; when the pipeline has a large horizontal displacement, the center of the original designed pipe clamp will deviate from the center of the main axis of the spring 5 to form a cantilever beam structure. After adding the anti-tilt auxiliary support column 7, the original cantilever beam structure is well eliminated, reducing or even avoiding the tilt of the spring bearing plate 1, thereby avoiding the risk of the pipeline slipping off the bearing plate.

[0045] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0046] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. An anti-tilt spring bracket, characterized in that: It comprises a bearing plate (1), a bearing column (2), a metal expansion joint (3), a lower end plate (4), a spring (5), a spring outer cylinder (6) and an anti-tilt auxiliary support column (7); The lower end of the spring outer cylinder (6) is fixed to the lower end plate (4), a pressure plate is arranged inside the spring outer cylinder (6), a spring (5) is installed between the pressure plate and the bottom of the spring outer cylinder (6), a bearing column (2) is arranged at the upper end of the pressure plate and is threadedly connected to the pressure plate, and the upper end of the bearing column (2) is connected to the support plate (1); A plurality of anti-tilt auxiliary support columns (7) are evenly distributed on the circumference of the spring outer cylinder (6) between the bearing plate (1) and the lower end plate (4), and a plurality of anti-tilt metal expansion joints (3) are connected to each anti-tilt auxiliary support column (7).

2. The anti-tilt spring bracket according to claim 1, characterized in that: A plurality of anti-tilt auxiliary support columns (7) are distributed at the 0 o'clock, 3 o'clock, 6 o'clock and 9 o'clock directions of the spring outer cylinder (6).

3. The anti-tilt spring bracket according to claim 1, characterized in that: The maximum compensation amount of the metal expansion joint (3) is the designed vertical displacement of the pipeline at that position.

4. The anti-tilt spring bracket according to claim 3, characterized in that: A plurality of metal expansion joints (3) are arranged on the same anti-tilt auxiliary support column (7) to increase the permissible value of deflection.

5. The anti-tilt spring bracket according to claim 3, characterized in that: The metal expansion joint (3) is a bellows, and the bellows is provided with a guide rod.

6. The anti-tilt spring bracket according to claim 1, characterized in that: The top of each anti-tilt auxiliary support column (7) is fixed to the bearing plate (1) via threads.

7. The anti-tilt spring bracket according to claim 1, characterized in that: The axis of the bearing column (2) coincides with the axis of the spring (5), the upper end of the bearing column (2) contacts the bearing plate (1), and the bearing column (2) and the bearing plate (1) are provided with relative displacement; when the bearing plate (1) deviates, the bearing column (2) is not subjected to eccentric force.

8. The anti-tilt spring bracket according to claim 1, characterized in that: The lower end plate (4) is fixed to the base by bolts.

9. The anti-tilt spring bracket according to claim 1, characterized in that: An anti-tilt auxiliary bearing plate (8) is provided between the bearing plate (1) and each anti-tilt auxiliary support column (7).

10. A method for using an anti-tilt spring bracket according to any one of claims 1 to 9, characterized in that: include: When the main pipeline compresses the spring (5) under the action of thermal displacement and thermal expansion, the metal expansion joint (3) in the anti-tilt auxiliary support column (7) is driven to produce a displacement allowed by the design. When the main pipeline is displaced in the horizontal direction, the spring (5) and the anti-tilt auxiliary support column (7) simultaneously play a supporting role, and the spring (5) and the bearing column (2) are not subjected to the action of eccentric force.

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