Petrochemical liquid storage tank air bag type floating block sampling device

A sampling device, air bag type technology, applied in the field of petrochemical liquid storage tank air bag type floating block sampling device, to achieve the effect of simple structure, wide application range and simple construction

Pending Publication Date: 2021-04-16
FUSHUN BRIGHT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides an airbag type float sampling device for petrochemical liquid storage tanks, which solves the problems of safety, accuracy, reliability, service life and efficiency of sampling operations

Method used

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  • Petrochemical liquid storage tank air bag type floating block sampling device

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Embodiment Construction

[0032] Attached below figure 1 And embodiment the present invention is further described.

[0033] Refer to attached figure 1 As shown, the present invention is a petrochemical liquid storage tank airbag float sampling device, including a vacuum tank 1, a nitrogen pressure tank 2, an air control box 3, a one-way valve 4, a sampling valve 5, an airbag float 6, and a tube bundle 7. Floating disk anti-rotation rope 8, wherein the air control box 3 includes a pressure reducing valve 31, a sampling replacement control valve 32, a float control valve 33, a liquid level pressure gauge 34, an air control box 35, and an air bag type float 6. On the floating disk anti-rotation rope 8, the vacuum tank 1, the sampling replacement control valve 32, and the sampling valve 5 are connected to form a sampling control circuit (one and one of the two joints in the figure are connected to the first tube by gas passage), and the vacuum tank 1 , the floating block control valve 33, the air bag po...

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PUM

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Abstract

The invention discloses a petrochemical liquid storage tank air bag type floating block sampling device which comprises a vacuum tank, a nitrogen pressure tank, an air control box, a one-way valve, a sampling valve, an air bag type floating block, a pipe bundle and a floating disc anti-rotation rope, wherein the air control box comprises a pressure reducing valve, a sampling replacement control valve, a floating block control valve and a liquid level pressure gauge; the air bag type floating block is arranged on the floating disc anti-rotation rope; the vacuum tank, the sampling replacement control valve and the sampling valve are connected to form a sampling control circuit; the vacuum tank, the floating block control valve and the air bag opening are connected to form a floating block downward movement control circuit; the nitrogen pressure tank, the pressure reducing valve, the sampling replacement control valve, the one-way valve and the sampling valve are connected to form a residual replacement circuit; the nitrogen pressure tank, the floating block control valve and the air bag opening are connected to form a floating block upward movement control circuit. Up-and-down movement of the air bag type floating block is controlled by arranging the vacuum tank and the nitrogen pressure tank and operating the pneumatic valve to complete sampling of different liquid levels, and sampling is taken out by arranging the vacuum tank and the nitrogen pressure tank and operating the pneumatic valve.

Description

technical field [0001] The invention relates to the technical field of petrochemical equipment, in particular to an airbag-type float sampling device for petrochemical liquid storage tanks. Background technique [0002] Manual sampling of petrochemical liquid storage tanks requires a ladder to climb to the top of the tank. Generally, it takes 40 minutes for one tank, and the work efficiency is low. Corrosion may cause the risk of casualties caused by falling from high altitudes. There have been many painful lessons in the history of oil tank fires and explosions caused by sampling static electricity, which not only caused heavy losses to enterprises, but also caused unsafe accidents for personnel. [0003] With the improvement of sampling technology and equipment, various under-tank sampling devices are emerging, such as: buoy type under-tank sampler, float type under-tank sampler, folding arm type under-tank sampler, telescopic under-tank sampler , this situation has chan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10
Inventor 陈洁周丕春张禹刘毅周晶
Owner FUSHUN BRIGHT TECH
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