A pipe clamp gasket structure for reducing internal stress in pipes during multi-pipe installations

Abstract

This utility model relates to a pipe clamp gasket structure for reducing internal stress in pipes during multi-pipe installations. It includes a pipe clamp, which consists of an upper metal cover plate, a lower metal cover plate, and a pipe clamp gasket. The upper and lower metal cover plates are fixed to the pipe clamp gasket using bolts, nuts, or other fasteners. The advantages of this utility model are that by using nylon with high external hardness to support the pipes and suppress pipe vibration, while the internal low-hardness rubber effectively reduces stress between the pipe clamp and the pipe during dynamic vibrations during installation. This reduces the risk of vibration fatigue and durability failure.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure oil pipe installation technology, specifically a novel high-pressure oil pipe clamp anti-vibration structure. Background Technology

[0002] Most pipe clamps on the market are made of metal frames with rubber. However, if the rubber is too soft, the pipe clamp will not provide enough support. If it is too hard, the cumulative tolerance deformation and stress during installation will not be absorbed, which will affect the vibration fatigue durability performance. Utility Model Content

[0003] The purpose of this invention is to improve the pipe clamp's ability to absorb deformation and stress due to cumulative tolerances during pipe installation, and to provide a novel pipe clamp structure.

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

[0005] A pipe clamp gasket structure for reducing internal stress in pipes during multi-pipe installation includes a pipe clamp, which is composed of an upper metal cover plate, a lower metal cover plate, and a pipe clamp gasket; the upper metal cover plate, the lower metal cover plate, and the pipe clamp gasket are fixed with fasteners such as bolts and nuts.

[0006] The pipe clamp gasket is made of rubber and nylon. The harder nylon (glass fiber reinforced nylon) forms the frame, while the softer, more elastic rubber material (such as silicone rubber) directly contacts the pipe, acting as a buffer. The rubber is clamped in the front-to-back direction by protruding sections of the nylon material, and a certain amount of clearance (ranging from 0.5mm to 2mm) is provided in the lateral direction to further absorb displacement and stress caused by installation tolerances.

[0007] The minimum thickness of the buffer section of the pipeline shall not be less than 1 / 3 of the pipe diameter, and the minimum thickness of the nylon frame section shall not be less than 1 / 2 of the pipe diameter.

[0008] The pipeline needs to be interference-fitted with the buffer part of the rubber material. The specific amount of interference depends on the pipeline radius and the physical properties of the rubber with low hardness.

[0009] The pipe clamp is lined with two materials: a rubber with a large elastic deformation and low hardness (such as silicone rubber) for the part that mates with the pipe, and a nylon with a small elastic deformation and high hardness (such as glass fiber reinforced nylon) for the part that mates with the system. When the pipe is installed, the pipe clamp will absorb the displacement and stress of the pipe caused by the accumulated tolerance while providing fixed support for the pipe.

[0010] This application uses nylon with high external hardness to support the pipeline, suppressing pipeline vibration, while the internal low-hardness rubber effectively reduces the stress between the pipeline and the clamps during dynamic vibration. This lowers the risk of vibration fatigue and durability failure.

[0011] Compared with the prior art, the positive effects of this utility model are:

[0012] By combining materials with varying hardness, sufficient support is provided to secure the pipeline while creating a buffer zone around the pipeline to absorb deformation and stress caused by accumulated installation tolerances. This prevents installation stress from affecting the pipeline's vibration fatigue durability. Attached Figure Description

[0013] Figure 1 Side perspective view of a dual-pipe clamp;

[0014] Figure 2 A side view of the structure of the rubber gasket of the pipe clamp;

[0015] Figure 3 Exploded perspective view of the rubber gasket of the pipe clamp.

[0016] The labels in the attached diagram are:

[0017] 1. Metal cover plate; 2. Fastener pre-drilled holes; 3. Nylon; 4. Front and rear protrusions; 5. Movement gap; 6. Rubber.

[0018] d is the rubber thickness, D is the nylon thickness, and R is the opening radius. Detailed Implementation

[0019] The following provides a specific embodiment of the pipe clamp gasket structure of this utility model for reducing internal stress in pipes during multi-pipe installation.

[0020] Example 1

[0021] The pipe clamp consists of two sets of metal cover plates 1, and a pipe clamp gasket. It is installed using fasteners such as bolts and studs through the pre-drilled through holes 2.

[0022] The pipe clamp gasket is composed of rubber 6 and nylon 3. The harder nylon (glass fiber reinforced nylon) forms the frame, while the softer rubber material with greater elastic deformation (such as silicone rubber) is in direct contact with the pipe, acting as a buffer. The rubber is clamped in the front-to-back direction by the front and rear protrusions 4 of the nylon material, and a certain amount of clearance 5 is provided in the left-to-right direction to absorb displacement and stress caused by installation tolerances.

[0023] The piping needs to be interference-fitted with the rubber buffer section. The specific interference amount depends on the pipe radius and the properties of the rubber with lower hardness. Generally, the opening radius R should be 0.1mm to 0.5mm less than the pipe radius. The minimum rubber thickness d of the buffer section of the piping should not be less than 1 / 3 of the pipe diameter, and the minimum nylon thickness D of the nylon frame section should not be less than 1 / 2 of the pipe diameter. The clearance should not be less than 1 / 3 of the cumulative tolerance of the piping components.

[0024] When installing the pipeline, first place the lower half of the pipe clamp in the clamp installation position. When assembling the pipeline, align the lower half of the pipe clamp so that the pipe and the opening position of the pipe clamp gasket coincide. After assembling the pipeline, align the upper half of the pipe clamp with the lower half and fix the pipe clamp. At this time, the metal and nylon parts on the outside of the pipe clamp gasket are fully tensioned, while the rubber part in contact with the pipeline begins to buffer the flow through movement towards the gap and its own deformation. The pipeline can then remain in a partially tensioned state, preventing deformation and internal stress caused by accumulated tolerances.

[0025] The above description includes not only dual-pipe clamps but also single-pipe and other multi-pipe clamps. Furthermore, it should be noted that those skilled in the art can make various improvements and modifications without departing from the concept of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A pipe clamp gasket structure for reducing internal pipe stress in a multi-pipe installation, characterized by, It includes a pipe clamp, which consists of an upper metal cover plate, a lower metal cover plate, and a pipe clamp gasket; the upper metal cover plate, the lower metal cover plate, and the pipe clamp gasket are fixed together with bolts and nuts.

2. A tube clamp gasket structure for reducing internal stresses in a tube when installed in a multi-tube installation according to claim 1, characterized in that The pipe clamp gasket is made of rubber and nylon.

3. A tube clamp gasket structure for reducing internal stresses in a tube when installed in a multi-tube installation according to claim 2, wherein The nylon frame is made of rubber material that comes into direct contact with the pipeline as a buffer. The rubber is clamped in the front and back directions by the front and back protrusions of the nylon material, and there are movable gaps in the left and right directions to further absorb the displacement and stress caused by installation tolerances.

4. A tube clamp gasket structure for reducing internal stresses in a tube when installed in a multi-tube installation according to claim 3, wherein The range of the movement gap is 0.5mm to 2mm.

5. A tube clamp gasket structure for reducing internal stresses in a tube when installed in a multi-tube installation as defined in claim 2, wherein, The minimum thickness of the buffer section of the pipeline shall not be less than 1 / 3 of the pipe diameter, the minimum thickness of the nylon frame section shall not be less than 1 / 2 of the pipe diameter, and the clearance shall not be less than 1 / 3 of the cumulative tolerance of the pipeline connecting parts.

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