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Multi-pipeline multi-class supporting rigidity pipeline connecting device for hydraulic pipeline test

A technology of hydraulic pipeline and support stiffness, applied in the direction of pipe/pipe joint/pipe fitting, measuring device, pipe support, etc., it can solve the problem that the pipeline vibration mechanism cannot be tested, pipeline testing cannot be performed, and multiple vibration waves cannot be simulated at the same time. There are other problems

Pending Publication Date: 2019-04-12
UNIV OF SCI & TECH LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device includes an adjustable rigidity support, a base and an electromagnetic vibrating table; the adjustable rigidity support includes a fixed support base, a fixed support base, a rotating base, a steel bar seat, an adjustable tube seat and other components; the base The platform is used for fixing and adjusting the position of the adjustable stiffness support, and changing the position and angle of the adjustable stiffness support can realize the installation of hydraulic pipelines with complex structures of different lengths and angles; the electromagnetic vibrating table is used to provide hydraulic pressure Fixed-frequency excitation, sweep-frequency excitation, random vibration and impact vibration of the pipeline; this technical solution is a device suitable for the test of adjustable hydraulic pipeline support stiffness in the laboratory, and realizes continuous adjustable and different hydraulic pipeline support stiffness. Installation and testing of hydraulic pipelines with complex lengths and angles, simulating the boundary stiffness of multi-section pipeline connections; however, this technical solution can only be installed and tested for single-pipe structures, and cannot be used for hydraulic systems with multiple pipelines and different diameters at the same time simulation test
It is also not possible to test pipelines under different types of support stiffness
It cannot simulate the simultaneous existence of multiple vibration waves in the filling liquid, and then cannot test the very complicated vibration mechanism of the pipeline

Method used

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  • Multi-pipeline multi-class supporting rigidity pipeline connecting device for hydraulic pipeline test
  • Multi-pipeline multi-class supporting rigidity pipeline connecting device for hydraulic pipeline test
  • Multi-pipeline multi-class supporting rigidity pipeline connecting device for hydraulic pipeline test

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Experimental program
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Effect test

Embodiment 1

[0038] like figure 1 , figure 2 As shown, in this embodiment, the pipeline connection device with multiple pipelines and multiple types of support stiffness for hydraulic pipeline test is composed of a cylindrical base 2, a support base 3 and a clamp assembly, wherein the middle part of the support base 3 The boss is provided, and the hoop assembly is three single-link elastic hoops 4, which are respectively arranged on the boss and the support seats 3 on both sides of the boss. like figure 2 As shown, the single-link elastic clamp 4 is composed of a single-ring clamp 41, a hexagon socket head screw 42 and a rubber-metal composite coil spring, which can be used for multiple pipes with different diameters and including straight pipes, bent pipes and three-way pipes. Hydraulic line 1 is tested at the same time.

Embodiment 2

[0040] like image 3 As shown, in this embodiment, the pipeline connection device with multiple pipelines and multiple types of support stiffness for hydraulic pipeline test is composed of a cylindrical base 2, a support base 3 and a clamp assembly, wherein the middle part of the support base 3 The boss is provided, and the clip assembly is three fixed clips 7, which are respectively arranged on the boss and the support seats 3 on both sides of the boss. The fixed clip 7 is composed of a single-ring clip 41 and a hexagon socket head screw 42. The hydraulic pipeline 1 is fixed on the support seat 3 by the fixing clip 7 to realize rigid support, and the vibration characteristics of the hydraulic pipeline 1 under different support rigidities are obtained.

Embodiment 3

[0042] like Figure 4-Figure 6 As shown, in this embodiment, the pipeline connection device for multiple pipelines and multiple types of support stiffness for hydraulic pipeline test is composed of a cylindrical base 2, a support base 3 and a clamp assembly, wherein the support base 3 is divided into Body structure, the upper base body 31 and the lower base body 32 are connected by bolts, and the hole formed after the combination is used to fix the hydraulic pipeline 1, and the split gasket 8 is arranged between the hole and the corresponding hydraulic pipeline 1. The split gasket 8 compresses the hydraulic pipeline 1 so as to fix the hydraulic pipeline 1 , and the simulation test of the hydraulic pipeline 1 with different diameters can be realized by replacing the split gasket 8 with different thicknesses.

[0043] The middle part of the upper base body 31 is provided with a boss, and the clamp assembly is composed of an elastic duplex clamp 5 fixed on the boss and fixed clam...

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Abstract

The invention relates to a multi-pipeline multi-class supporting rigidity pipeline connecting device for a hydraulic pipeline test. The pipeline connecting device comprises a cylinder base, a supporting seat and a clamp assembly, wherein the cylinder base is used for being connected with a testing instrument, a supporting seat is arranged at the top of the cylinder base, and the clamp assembly isarranged on the supporting seat; the clamp assembly is composed of a plurality of elastic clamps and / or a plurality of fixing clamps, each elastic clamp comprises a single-connection elastic clamp anda duplex elastic clamp, and the clamp assembly is used for fixing a hydraulic pipeline with a plurality of branches or a plurality of hydraulic pipelines. According to the multi-pipeline multi-classsupporting rigidity pipeline connecting device, the clamps of various types are installed on the supporting seat and are matched with an oil splitter, so that effective connection of hydraulic pipelines with complex structures such as straight pipes, elbows, three-way pipes and the like can be realized, and rigid supporting or flexible supporting can be realized. The vibration characteristic of the multi-pipeline hydraulic system can be simulated and tested on the basis, so that the mechanism of generating and propagating the fluid pressure pulsation and the pipeline vibration in the pipelinesystem is more fully understood.

Description

technical field [0001] The invention relates to the technical field of hydraulic pipeline vibration tests, in particular to a pipeline connection device with multiple pipelines and multiple types of support stiffness for hydraulic pipeline tests. Background technique [0002] Hydraulic pipelines are widely used in aerospace, construction machinery, petrochemical and other fields, and because of the fluid pressure pulsation and pipeline structure pulsation in the hydraulic pipeline system, it often leads to forced vibration of the hydraulic pipeline system, so no matter Whether it is for the hydraulic pipeline system of the aircraft or the fuel pipeline system, the vibration problem has always been an urgent task to be solved in the engineering field. There are many factors affecting the dynamic response of the pipeline system due to vibration, among which the support position, support stiffness and multi-section hydraulic pipeline connection characteristics of the hydraulic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L3/10F16L3/123F16L3/237G01M7/02
CPCF16L3/1091F16L3/123F16L3/237G01M7/02
Inventor 于晓光杨同光郭延稳刘忠鑫刘佳琪薛政坤段宝嘉刘双宁
Owner UNIV OF SCI & TECH LIAONING
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