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Method and system for automatically draining water and returning oil for petrochemical storage tanks

A petrochemical and automatic technology, applied in the field of automatic water cutting and oil return method and system of petrochemical storage tanks, can solve the problems of long-term residual medium in drainage pipes, unfavorable water cutting and other problems, and achieve the effect of improving water cutting efficiency

Active Publication Date: 2015-04-08
凯泰(滁州)流体控制有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing petrochemical storage tank oil-water separation equipment cuts water in order to carry as little oil as possible. The end of the drain pipe in the storage tank adopts a downwardly extending suction type, which will inevitably cause drain pipes and automatic cut-off. The long-term residue of the medium in the water tank is not conducive to the problem of cutting water

Method used

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  • Method and system for automatically draining water and returning oil for petrochemical storage tanks
  • Method and system for automatically draining water and returning oil for petrochemical storage tanks

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Embodiment 1

[0029] Embodiment 1, the method for automatic water cutting and oil return of petrochemical storage tanks of the present invention is to connect the medium buffer storage with the discharge pipe and the medium discharge control valve connected to the water cutting intelligent controller at the position lower than the oil and water detection probe on the automatic water cutting tank On the top of the tank, the medium return pipe leading upward from the bottom of the medium buffer storage tank is connected to the lower part of the distribution water pipe through the medium return pump connected to the intelligent controller and connected to the water cutting control valve of the intelligent controller to automatically cut the top of the tank ; The tank body of the automatic water cutting tank is a vertical water cutting tank whose height is greater than the width.

[0030] When the medium in the drain pipe connected to the medium storage tank and the automatic water cutting tank ...

Embodiment 2

[0038] Embodiment 2, the difference between the method of automatic water cutting and oil return for petrochemical storage tanks of the present invention and the above-mentioned embodiment 1 is only that the automatic water cutting tank is replaced by an automatic water cutting cylinder, and the height of the cylinder of the automatic water cutting cylinder is smaller than that of the horizontal direction. length horizontal cut-off barrel. The water cutting pipe is led downward from the bottom of the automatic water cutting cylinder, and the bottom of the automatic water cutting cylinder no longer leads downward to the sewage pipe with the manual sewage valve. The diameter of the drainage pipe is 100 millimeters, and the diameter of the water cutting pipe, the drainage pipe and the medium return pipe is 40 millimeters in diameter.

[0039] System embodiment of the present invention:

[0040] Embodiment one, such as figure 1 As shown, the system for realizing the automatic wa...

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Abstract

The invention relates to a method and a system for automatically draining water and returning oil for petrochemical storage tanks. By the aid of the method and the system, the problem of medium residue can be solved. The method includes communicating a certain position of an automatic water draining tank or barrel with the top of a medium buffer storage tank via a residue discharge pipe and a medium residue discharge control valve, and communicating a medium feedback pipe with the top of the automatic water draining tank or barrel via a medium feedback pump; discharging media in a drain pipe and the automatic water draining tank or barrel into the medium buffer storage tank by the aid of the medium residue discharge control valve when water cannot be automatically drained due to medium residue, then closing the medium residue discharge control valve, opening a water draining control valve to drain the water, turning on the medium feedback pump, enabling the media in the medium buffer storage tank to flow back to a storage tank via the medium buffer storage tank and the drain pipe, turning off the medium feedback pump, opening the medium residue discharge control valve after the media are settled, enabling the media to flow into the buffer storage tank, and sequentially circularly carrying out the same procedure. The certain position of the automatic water draining tank or barrel is located below an oil and water detection probe, the medium residue discharge control valve is connected with an intelligent water draining controller, and the medium feedback pipe is upwardly led out from the bottom of the medium buffer storage tank. A water draining pipe and the water draining control valve are arranged on the lower portion of the automatic water draining tank or barrel. The method and the system have the advantages that the residual media can be timely transferred and temporarily stored at first, the temporarily stored media can return the medium storage tank in due time after the water is drained, accordingly, the method and the system are quite favorable for normal water draining, and the water draining efficiency can be obviously improved.

Description

technical field [0001] The invention relates to an oil-water separation method for a petrochemical storage tank, in particular to a method and system for automatically cutting water and returning oil to a petrochemical storage tank. Background technique [0002] The existing petrochemical storage tank oil-water separation equipment cuts water in order to carry as little oil as possible. The end of the drain pipe in the storage tank adopts a downwardly extending suction type, which will inevitably cause drain pipes and automatic cut-off. The long-term residue of the medium in the water tank is not conducive to the problem of cutting water. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned defects of the prior art, and to provide a method for automatically cutting water and returning oil to a petrochemical storage tank that can return the residual medium to the storage tank in time. The purpose of the present invention...

Claims

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Application Information

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IPC IPC(8): B65D90/00
CPCB65D90/00
Inventor 高翔
Owner 凯泰(滁州)流体控制有限公司