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Pipeline inner wall wiping and sampling device operated at single end

The technology of sampling device and pipeline is applied in the field of survey sampling device for inner wall of pipeline to achieve the effect of enhancing wiping effect, balancing frictional resistance and facilitating wiping and sampling

Pending Publication Date: 2022-07-05
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

"A compact and small pipeline inner wall cleaning device" disclosed in Chinese patent 107461566A and the "pipeline inner wall cleaning device" disclosed in Chinese patent 112893348A both use relatively complex large-scale mechanical equipment for pipeline cleaning
For this kind of wiping and sampling operations with limited space, it is difficult to achieve this purpose through simple modifications in the existing technology

Method used

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  • Pipeline inner wall wiping and sampling device operated at single end
  • Pipeline inner wall wiping and sampling device operated at single end
  • Pipeline inner wall wiping and sampling device operated at single end

Examples

Experimental program
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Effect test

Embodiment 1

[0047] like figure 1 As shown, the present invention is a single-end operated pipe inner wall wiping sampling device, comprising a support assembly 2, an elastic body 3, an operating mechanism and a driving mechanism connected with the operating mechanism; the driving mechanism is used to drive the operating mechanism to move in the axial direction;

[0048] The operating mechanism includes an inner push rod 5, a restraint assembly 4 sleeved on the inner push rod 5, and a positioning assembly 6; an accommodation cavity is formed between the inner push rod 5 and the restraint assembly 4; one end of the inner push rod 5 is connected to the The elastic body 3 is connected, and the other end is connected with the driving mechanism; the other end of the inner push rod 5 is provided with a first positioning hole 13 and a second positioning hole 14; the end of the restraint assembly 4 close to the inner push rod 5 is provided with a third positioning hole The positioning assembly 6 p...

Embodiment 2

[0060] like Figure 7 As shown, the difference between this embodiment and the first embodiment is that the constraining assembly 4 includes a constraining cylinder 15 sleeved on the inner push rod 5, a ring assembly 11 and a connecting pipe 12; one end of the connecting pipe 12 is connected to the constraining cylinder 15, The other end is connected with the ring assembly 11; the third positioning hole is arranged on the ring assembly 11;

[0061] An accommodating cavity is formed between the inner push rod 5 and the restraining cylinder 15 ; the support assembly 2 is arranged on the outer wall of the restraining cylinder 15 . The ring assembly 11 and the connecting pipe 12 used in this embodiment can reduce the weight of the restraint assembly 4, thereby reducing the weight of the operating mechanism, making the wiping and sampling operation more convenient.

[0062] The rest of this embodiment is the same as the first embodiment.

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Abstract

The invention relates to a pipeline inner wall investigation and sampling device, in particular to a single-end operation pipeline inner wall wiping and sampling device, and solves the technical problem that sediments on the inner wall of a to-be-wiped and sampled pipeline are difficult to wipe and sample well under the condition that one end of the existing pipeline is difficult to reach or is a blind end. A single-end-operated pipeline inner wall wiping and sampling device comprises a supporting assembly, an elastic body, an operating mechanism and a driving mechanism. The operating mechanism comprises an inner push rod, a restraining assembly arranged on the inner push rod in a sleeving mode and a positioning assembly. The positioning assembly penetrates through the third positioning hole and the first positioning hole, and the elastic body is contracted into the containing cavity. Or the positioning assembly penetrates through the third positioning hole and the second positioning hole, and the elastic body is released into the sampling pipeline to be wiped. The dirt can be cleaned and the sample can be taken out only by operating at one end of the pipeline.

Description

technical field [0001] The invention relates to a sampling device for investigating the inner wall of a pipeline, in particular to a sampling device for wiping the inner wall of a pipeline with single-end operation. Background technique [0002] After a pipeline on an industrial installation has been in operation for a period of time, there are often deposits on the inner wall of the pipeline that need to be cleaned. In the nuclear industry, chemical industry or some special industries, it is often necessary to survey and sample the sediment in the pipeline, so as to understand the composition of the sediment and provide a basis for formulating the sediment treatment plan. Simple pipeline sampling or cleaning can be done manually; but when the inner diameter of the pipeline is large or very small, and the pipeline is relatively long, certain mechanical devices are required. For example, Chinese Patent 109985868A discloses the "cleaning method of oil pollution on the inner w...

Claims

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Application Information

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IPC IPC(8): G01N1/10
CPCG01N1/10G01N2001/1031Y02E30/30
Inventor 刘龙波蔡松王宝生杨慧马振辉
Owner NORTHWEST INST OF NUCLEAR TECH
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