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A high-precision adjustment device for pipe cross-section size

An adjustment device, high-precision technology, applied in the direction of the valve device, valve operation/release device, valve details, etc., can solve the problems of the ball valve not working, the inner hose is prone to fatigue, and the adjustment is difficult, so as to achieve simple action and relieve fatigue Defects, truncation effects, good effects

Active Publication Date: 2021-11-30
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the mass concentration of ore particles, general gate valves and ball valves cannot work under this condition
Although the pinch valve can operate in the slurry working condition, its internal rubber hose is prone to fatigue, and it is difficult to adjust the pump working condition point close to the optimal working condition point

Method used

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  • A high-precision adjustment device for pipe cross-section size
  • A high-precision adjustment device for pipe cross-section size
  • A high-precision adjustment device for pipe cross-section size

Examples

Experimental program
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Effect test

Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0033] see Figure 1-Figure 13 In this embodiment, the high-precision resistance-increasing and pressure-regulating control variable diameter valve includes a support tube 1 and a rubber tube 2 built in the support tube 1. An adjustment device for adjusting the cross-sectional size of the rubber tube 2 is installed on the support tube 1. The support tube 1 is fixed with a flange 3.

[0034] The supporting tube 1 is fixed with a driving device 4 for driving the adjustment device, and the driving device 4 pushes the sliding sleeve 5 to slide along the axial direction of the supporting tube 1 .

[0035] The adjustment device includes a sliding sleeve 5, eight sets of pressure rod assemblies 6 and eight sets of strap a...

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Abstract

The invention discloses a high-precision adjusting device for the cross-section size of a pipeline, which is characterized in that it includes a sliding sleeve, a pressing rod assembly and a strap assembly, the sliding sleeve is sleeved on a support tube, and the sliding sleeve has a linear sliding feature relative to the axis of the support tube. Degree of freedom, there are eight slots on the sliding sleeve, the sliding sleeve includes a diameter-reducing section and a locking section arranged in sequence from front to back, the diameter-reducing section is in the shape of a truncated cone, and the locking section includes four arcuate protrusions and four arcuate depressions, arcuate protrusions and arcuate depressions are arranged in sequence along the circumference of the cross section. Since the cross section of conventional pinch valves is usually flattened into an approximately elliptical shape to reduce the cross-sectional area, the rubber hose Due to the uneven deformation and the wear of the ore particles on the pipe wall, the rubber hose is prone to fatigue defects. In the process of reducing the cross section of the variable diameter valve of the present invention, the cross section is approximately circular, and the deformation of the rubber hose cross section is relatively uniform, so fatigue defects can be alleviated.

Description

technical field [0001] The invention relates to the field of valves, in particular to a high-precision adjusting device for the cross-sectional size of a pipeline. Background technique [0002] In the pump slurry test system of the current mining transportation test system, the transported slurry is mixed with seawater and ore particles with a diameter of 3-30mm, and the mass concentration of the ore particles is between 3-15%. In the low-water deep-sea test mining transportation system, the slurry lift pump adopts deep-sea design parameters. In the 50m water deep-sea test, the pump outlet head may be 90-270m, far exceeding the demand for hydraulic transportation, so it is necessary to increase the transportation resistance in the pipeline and adjust The head flow rate of the pump makes it work in a reasonable power range. Due to the mass concentration of ore particles, general gate valves and ball valves cannot work under this condition. Although the pinch valve can opera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K7/06F16K27/02F16K31/50F16J3/04
CPCF16J3/04F16K7/061F16K27/0236F16K31/50
Inventor 胡琼陈骏邓立文刘少军康娅娟
Owner CENT SOUTH UNIV
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