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High-precision adjusting device for size of pipe section

An adjustment device, high-precision technology

Active Publication Date: 2021-04-27
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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  • High-precision adjusting device for size of pipe section
  • High-precision adjusting device for size of pipe section
  • High-precision adjusting device for size of pipe section

Examples

Experimental program
Comparison scheme
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. The support tube 1 is equipped with a rubber tube 2 for adjusting the cross-sectional size of the rubber tube 2. The support tube 1 is fixed with a flange 3 at the end.

[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 ...

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Abstract

The invention discloses a high-precision adjusting device for the size of a pipe section. The high-precision adjusting device is characterized in that the high-precision adjusting device comprises a sliding sleeve, a pressing rod assembly and a bandage assembly, the sliding sleeve is arranged on a supporting pipe in a sleeving mode, the sliding sleeve has the freedom degree of linear sliding relative to the axis of the supporting pipe, eight open grooves are formed in the sliding sleeve, the sliding sleeve comprises a reducing section and a locking section which are sequentially arranged from front to back, the reducing section is in a circular truncated cone shape, the locking section comprises four cambered surface protruding positions and four cambered surface sunken positions, and the cambered surface protruding positions and the cambered surface sunken positions are sequentially arranged in the circumferential direction of the section. Due to the defects that the section of a conventional pinch valve is usually flattened into an approximately oval shape to reduce the sectional area, the deformation of a rubber pipe is uneven, the pipe wall is abraded by ore particles, the rubber pipe is prone to fatigue, in the process of reducing the section of a reducing valve, the section is approximately circular, and the deformation of the section of the rubber pipe is uniform, so that the fatigue defect can be relieved.

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 Applications(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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