A suspended flange bending moment testing device

Abstract

The utility model discloses a kind of suspension flange bending moment testing devices, comprising: welded pipe, suspension flange welded in the middle position of welded pipe, pipe cap welded in the both ends of welded pipe and bending moment testing mechanism, water pressure test hole is opened in both ends pipe cap, bending moment testing mechanism includes bending moment testing base, support frame being set on bending moment testing base and hydraulic loading mechanism being set on bending moment testing base, the both ends of welded pipe are connected with support frame, hydraulic loading mechanism includes jack being set on bending moment testing base, pressure sensor being set on jack and "U" type cushion block being set on pressure sensor, "U" type cushion block is contacted with suspension flange, and under the driving of jack, any size force in stroke is applied to the suspension flange, the suspension flange bending moment testing device of the utility model can detect whether the stability of suspension flange product under bending moment load environment meets the design requirement of product.

Description

Technical Field

[0001] This utility model relates to the technical field of flange bending moment testing, and in particular to a device for testing the bending moment of a suspended flange. Background Technology

[0002] In the industrial sector, especially in the oil and gas industry, the performance evaluation of suspension flanges is crucial. As a connecting and supporting component, the suspension flange is subjected to complex bending moment loads during operation.

[0003] With the continuous development and integration of various related technologies, the devices used to test the bending moment of suspension flanges have been continuously improved and perfected, providing important technical support for ensuring the quality and reliability of suspension flanges.

[0004] Traditional testing methods often fail to accurately simulate the bending moment experienced by the suspension flange under actual working conditions, leading to discrepancies between test results and practical applications. In order to meet the requirements of high precision and high reliability for bending moment testing of suspension flanges, Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a suspended flange bending moment testing device. This device is small in size and can be combined with water pressure testing, simplifying the structure of the bending moment testing device. At the same time, it can be combined with water pressure testing to more closely simulate the operating environment of submarine pipelines, and can conveniently detect whether the stability of suspended flange products under bending moment load environment meets the product design requirements.

[0006] To solve the above-mentioned technical problems, the present invention adopts a suspended flange bending moment testing device, including a welded pipe, a suspended flange welded to the middle of the welded pipe, pipe caps welded to both ends of the welded pipe, and a bending moment testing mechanism. Water pressure testing holes are provided on the pipe caps at both ends. The bending moment testing mechanism includes a bending moment testing base, a support frame mounted on the bending moment testing base, and a hydraulic loading mechanism mounted on the bending moment testing base. Both ends of the welded pipe are connected to the support frame. The hydraulic loading mechanism includes a jack mounted on the bending moment testing base, a pressure sensor mounted on the jack, and a U-shaped pad mounted on the pressure sensor. The U-shaped pad contacts the suspended flange and, driven by the jack, applies a force of any magnitude within its stroke to the suspended flange.

[0007] In a preferred embodiment of this invention, the jack applies pressure to the suspension flange, and the pressure can be freely adjusted.

[0008] In a preferred embodiment of the present invention, the support frame includes two symmetrically arranged upright plates, two horizontal reinforcing ribs disposed between the two upright plates, a vertical reinforcing rib disposed between the horizontal reinforcing ribs and the bending moment test base, and a diagonal reinforcing rib disposed on the outside of the upright plates.

[0009] In a preferred embodiment of this utility model, the top surface of the upright plate is provided with a connecting lug, and the two ends of the welded pipe are welded with clamps, which are connected to the connecting lug by a pin.

[0010] In a preferred embodiment of the present invention, a mechanical dial indicator for detecting the deformation value of the suspension flange is provided on the suspension flange.

[0011] In a preferred embodiment of the present invention, a plug is provided on the water pressure test hole on one side of the pipe cap, and an external pressurizing device is connected to the water pressure test hole on the other side of the pipe cap.

[0012] In a preferred embodiment of this utility model, the "U"-shaped pad is made of a rigid material.

[0013] The beneficial effects of this utility model are as follows: By injecting water into the welded pipe through an external water pressure loading system to maintain pressure, the water pressure environment of the submarine oil pipeline can be accurately simulated. By driving the jack, any force within the stroke of the suspension flange can be applied. The pressure sensor can detect the pressure value of the suspension flange in real time, and the mechanical dial gauge can detect the deformation of the suspension flange in real time. It can conveniently detect whether the stability of the suspension flange product under bending moment load environment meets the customer's needs, meet the needs of different fields (especially marine engineering field) for suspension flange performance testing in complex working environments, and provide strong technical support for the safe operation of important engineering facilities such as submarine oil pipelines. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of the structure of the suspended flange bending moment testing device of this utility model; Figure 2 This is a side view of the suspension flange bending moment testing device of this utility model. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] Please see Figure 1-2 This utility model discloses a suspended flange bending moment testing device, comprising: a welded pipe 1, a suspended flange 2 welded to the middle of the welded pipe, pipe caps 3 welded to both ends of the welded pipe, and a bending moment testing mechanism. Water pressure testing holes 4 are provided on the pipe caps at both ends of the welded pipe. One side of the pipe cap's water pressure testing hole is sealed with a plug, while the other side's water pressure testing hole is connected to an external pressurizing device. In a specific embodiment, a water pump can be used for pressurization and injection. Sealing rings can be used to seal the joints. The external pressurizing device slowly injects water pressure into the welded pipe inside the flange to ensure the pressure reaches a preset value. During the injection process, attention must be paid to pressure changes to avoid sudden pressure increases that could cause flange deformation or damage. After injection, a pressure holding operation is performed to ensure the water pressure remains stable within a specified time, while simultaneously checking for leaks or other abnormalities. This device can accurately simulate the water pressure environment of a subsea oil pipeline, preparing for subsequent testing of the suspended flange's bending moment performance.

[0017] Specifically, the bending moment testing mechanism includes a bending moment testing base 5, a support frame 6 mounted on the bending moment testing base, and a hydraulic loading mechanism mounted on the bending moment testing base. Both ends of the welded pipe are connected to the support frame. The hydraulic loading mechanism includes a jack 7 mounted on the bending moment testing base, a pressure sensor 8 mounted on the jack, and a U-shaped pad 9 mounted on the pressure sensor. The U-shaped pad is made of rigid material, and its upper surface is designed to conform to the arc surface of the suspension flange, facilitating contact with the surface of the suspension flange. Under the drive of the jack, a force of any magnitude within its stroke is applied to the suspension flange. The hydraulic jack applies pressure to the suspended flange, and the pressure can be freely adjusted. After the pressure is held, the hydraulic jack is activated to gradually apply force to the suspended flange and test its bending moment performance. During the force application process, the pressure value of the suspended flange is monitored in real time by a pressure sensor. The suspended flange is equipped with a mechanical dial indicator for detecting the deformation value of the suspended flange. The mechanical dial indicator detects the deformation of the suspended flange in real time and records the relevant data. After the test is completed, the staff evaluates and judges whether the flange performance meets the customer's requirements based on the deformation corresponding to the pressure value, ensuring its safety and reliability in actual application.

[0018] Specifically, the support frame 6 includes two symmetrically arranged upright plates 61, two horizontal reinforcing ribs 62 arranged between the two upright plates, a vertical reinforcing rib 63 arranged between the horizontal reinforcing rib and the bending moment test base, and a diagonal reinforcing rib 64 arranged on the outside of the upright plates. A connecting lug 65 is provided on the top surface of the upright plates. The two ends of the welded pipe are welded with clamps 10 to ensure that the clamps and the welded pipe of the flange are tightly fitted to avoid loosening. A forklift is used to smoothly move the suspension flange to the top of the bending moment test base. The clamps and the connecting lugs are connected by a pin 11 to fix the two ends of the welded pipe to the bending moment test base firmly, ensuring that the suspension flange will not move during the test.

[0019] The beneficial effects of this utility model are as follows: By injecting water into the welded pipe through an external water pressure loading system to maintain pressure, the water pressure environment of the submarine oil pipeline can be accurately simulated. By driving the jack, any force within the stroke of the suspension flange can be applied. The pressure sensor can detect the pressure value of the suspension flange in real time, and the mechanical dial gauge can detect the deformation of the suspension flange in real time. It can conveniently detect whether the stability of the suspension flange product under bending moment load environment meets the customer's needs, meet the needs of different fields (especially marine engineering field) for suspension flange performance testing in complex working environments, and provide strong technical support for the safe operation of important engineering facilities such as submarine oil pipelines.

[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A suspension flange bending moment testing device, comprising a welded pipe, a suspension flange welded to the middle of the welded pipe, pipe caps welded to both ends of the welded pipe, and a bending moment testing mechanism, wherein the pipe caps at both ends are provided with water pressure testing holes, characterized in that, The bending moment testing mechanism includes a bending moment testing base, a support frame mounted on the bending moment testing base, and a hydraulic loading mechanism mounted on the bending moment testing base. Both ends of the welded pipe are connected to the support frame. The hydraulic loading mechanism includes a jack mounted on the bending moment testing base, a pressure sensor mounted on the jack, and a "U"-shaped pad mounted on the pressure sensor. The "U"-shaped pad contacts the suspension flange and, driven by the jack, applies a force of any magnitude within its stroke to the suspension flange.

2. The suspension flange bending moment testing device according to claim 1, characterized in that, The jack applies pressure to the suspension flange, and the pressure can be freely adjusted.

3. The suspension flange bending moment testing device according to claim 1, characterized in that, The support frame includes two symmetrically arranged upright plates, two horizontal reinforcing ribs between the two upright plates, a vertical reinforcing rib between the horizontal reinforcing rib and the bending moment test base, and diagonal reinforcing ribs on the outside of the upright plates.

4. The suspension flange bending moment testing device according to claim 3, characterized in that, The top surface of the upright plate is provided with connecting ears, and the two ends of the welded pipe are welded with clamps, which are connected to the connecting ears by pins.

5. The suspension flange bending moment testing device according to claim 1, characterized in that, The suspension flange is equipped with a mechanical dial indicator for detecting the deformation value of the suspension flange.

6. The suspension flange bending moment testing device according to claim 1, characterized in that, A plug is installed on the water pressure test hole on one side of the pipe cap, and an external pressurization device is connected to the water pressure test hole on the other side of the pipe cap.

7. The suspension flange bending moment testing device according to claim 1, characterized in that, The "U"-shaped pad is made of rigid material.

Images