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Pipeline vibration isolation device capable of displaying vibration isolation frequency and adjusting balance position

A technology of balanced position and vibration isolation, applied in the direction of pipe components, pipe supports, pipes/pipe joints/pipe fittings, etc., can solve the problems that affect the vibration isolation effect and do not have it

Active Publication Date: 2019-12-17
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The design of traditional vibration isolation devices assumes that the load of the object to be isolated is known, therefore, it does not have the ability to deal with the above problems
In addition, in order to reduce costs, many vibration isolation devices use rubber materials as elastic elements, but rubber elastic elements have strong nonlinear characteristics, which also affects the vibration isolation effect

Method used

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  • Pipeline vibration isolation device capable of displaying vibration isolation frequency and adjusting balance position
  • Pipeline vibration isolation device capable of displaying vibration isolation frequency and adjusting balance position
  • Pipeline vibration isolation device capable of displaying vibration isolation frequency and adjusting balance position

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 2 Shown, Embodiment 1: pipeline elastic hanger

[0049] The internal structure of the pipeline hanger is: 1-shock absorber end cover; 2-fastening bolts; 3-cylindrical shell; 4-metal damping element fixing bolts; 5-metal damping; 6-chassis; 7-bottom limit Metal damping; 8-main connector; 9-spring; 10-bottom limit spring fixture; 11-upper limit spring fixture; 12-top limit metal damper. The damping structure is packaged in a cylinder, the upper part is connected to the suspension foot by the threaded interface through the adjustable connecting rod, the lower part is connected to the suspension foot by the thread, and then connected to the fixture through the connecting piece to bear the load.

[0050] Such as image 3 As shown, 1-1, 1-2, 1-3, 1-4 are bolt assemblies, 2-hanging foot, 3-upper hinge connecting rod, 4-1, 4-2, 4-3 and 4-4 are Lock nut, 5-height adjustment connecting rod, 6-upper connecting rod, 7-vibration damping unit, 8-lower connecting ro...

Embodiment 2

[0057] Such as Figure 5 Shown, Embodiment 2: Pipeline Support Vibration Isolation Device

[0058] which internal structure figure 1 It can be understood that the installation is changed from suspension to support. exist Figure 5 Middle, 1-upper clamp, 2-bolt assembly, 3-lower clamp, 4-upper lock nut, 5-lower lock nut, 6-vibration damping unit, 7-inner base, 8-height adjustment lock Tightening device, 9-outer base. Such as Image 6 As shown, there are three circular marks on the connecting rod of the damping unit (6), which respectively indicate the three working conditions of the lowest natural frequency, the rated natural frequency and the highest natural frequency from bottom to top, as follows:

[0059] (a) Highest natural frequency working condition: corresponding to the minimum allowable load, the mark (6-1) of the damping unit (6) just enters the upper edge of the inner base (7);

[0060] (b) Rated natural frequency working condition: corresponding to the ideal l...

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PUM

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Abstract

The invention provides a pipeline vibration isolation device capable of displaying a vibration isolation frequency and adjusting a balance position. The device comprises a split metal snap ring, bearing elastic elements, a load balance position displaying and marking assembly and an elastic element position adjusting device, wherein the split metal snap ring is connected with and fixed to a vibration isolation object through a bolt or a bayonet; the bearing elastic elements are connected in series and / or in parallel according to a preset angle, and bearing and transferring the load of the polarized object; the load balance position displaying and marking assembly is used for acquiring and displaying the vibration isolation frequency when a vibration isolator is subjected to load; and theelastic element position adjusting device is connected with the load balance position displaying and marking assembly so as to adjust a relative position between the bearing elastic elements and the vibration isolation object according to the frequency, so that the load borne by the vibration isolator meets a preset frequency requirement. According to the pipeline vibration isolation device, on the basis of meeting the rigidity and damping requirements of vibration isolation, an actual load static balance position mark display function and a static balance height position adjusting function are introduced, and the device has the characteristics of capable of detecting the vibration isolation frequency and adjustable the static balance position, and solves the problem that the frequency andthe balance position cannot be determined.

Description

technical field [0001] The invention relates to the technical field of structure and device vibration isolation, in particular to a pipeline vibration isolation device capable of displaying the vibration isolation frequency and adjusting the balance position. Background technique [0002] As we all know, many power systems have huge pipeline systems. The pipeline system not only transmits liquid, but also affects the quality characteristics of power machinery. In addition, fluid movements such as liquid pressure pulsation and turbulence generate vibration at the same time. In order to reduce the transmission of pipeline vibration to the structure, vibration isolation of the pipeline is required. However, the difficulty of pipeline vibration isolation lies in the flexibility of the pipeline. Due to the existence of flexibility, the load of each support or suspension point is affected by other points. The operating frequency of the vibration isolation device may not be within...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L3/11F16L55/035
CPCF16L3/11F16L55/035
Inventor 胡展徐彦昭郑钢铁贾地缪旭弘周涛毛柳伟
Owner TSINGHUA UNIV