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Heavy oil electro-desalting back-washing system and method thereof

A technology of backwashing and electric desalination, applied in chemical instruments and methods, cleaning methods and utensils, cleaning methods using liquids, etc. The effect of removing sand and silt

Inactive Publication Date: 2016-05-18
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a heavy oil electric desalination backwashing system to solve the problem in the prior art that the sediment and silt in the electric desalination tank cannot be effectively removed

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  • Heavy oil electro-desalting back-washing system and method thereof
  • Heavy oil electro-desalting back-washing system and method thereof
  • Heavy oil electro-desalting back-washing system and method thereof

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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0041] The invention provides a new electric desalination and backwashing system for inferior heavy oil. Under the premise of not changing the structure of the electric desalination tank and the production process, the power system matching the process of the electric desalination system is used, and the method of rotating forced injection is used. All the power carried by the liquid entering the tank directly acts on the areas where deposition may occur, and cleans the electric desalination tank in all directions. The device adopts omni-directional rotating nozzle technology for electric desalination backwashing operation, which can remove sediment and deposits in the electric desalination tank and optimize the residence time in the electric desalination tank.

[0042] combine image 3 , F...

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Abstract

The invention discloses a heavy oil electro-desalting back-washing system. The heavy oil electro-desalting back-washing system is arranged in a back-washing tank body and comprises a dewatering pipe, a support and a plurality of all-dimensional rotary jets. The multiple all-dimensional rotary jets are arranged on the support. Each all-dimensional rotary jet further comprises a plurality of back-washing pipes, a plurality of back-washing branch pipes and rotary nozzles. Each back-washing pipe is evenly provided with the corresponding multiple back-washing branch pipes. One rotary nozzle adopting a rotary forced injection mode is arranged at the tail end of each back-washing branch pipe. The invention further discloses a heavy oil electro-desalting back-washing method.

Description

technical field [0001] The invention relates to the field of petroleum processing, in particular to a novel low-quality heavy oil electric desalination backwashing system and a method thereof. Background technique [0002] Currently processed low-quality heavy oil is generally characterized by high density, high viscosity, high sulfur content or acid value, high carbon residue, high nitrogen content, high metal content, low light oil yield, and a lot of sediment due to the mining process . Too thick sludge at the bottom of the electric desalination tank can reduce the actual volume of the water area in the tank. In the case of the same interface, the actual interface in the tank is too low, and the oil-water separation time is shortened, resulting in poor oil-water separation. Electric desalination transformer Ultra-high current, dehydration and oily phenomenon, and even short circuit of transformer electrodes. Therefore, the backwashing process is generally used to remove...

Claims

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Application Information

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IPC IPC(8): B08B3/02C10G32/02
Inventor 张东明付兴国刘银东赵广辉于志敏张璐瑶张艳梅侯经纬
Owner PETROCHINA CO LTD
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