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Heavy dirty oil storage tank oil-water separation detection discharging method

A technology for oil-water separation and heavy dirty oil, which is applied in separation methods, liquid separation, chemical instruments and methods, etc., to achieve the effect of improving labor efficiency, reducing labor intensity, and obvious separation cycle time.

Inactive Publication Date: 2013-06-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is: in order to solve the oil-water separation remote control detection and automatic discharge method of the heavy dirty oil storage tank

Method used

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  • Heavy dirty oil storage tank oil-water separation detection discharging method
  • Heavy dirty oil storage tank oil-water separation detection discharging method
  • Heavy dirty oil storage tank oil-water separation detection discharging method

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Embodiment Construction

[0021] 1) For the detection of remote control of oil-water separation, a servo motor is installed on the upper part of the heavy dirty oil settling tank, and one end of the servo motor is connected with an electromagnetic sensor and a float for measuring the liquid level, and the sampling signal of the electromagnetic sensor and the float is connected to a microprocessor and a computer Control System;

[0022] The servo motor and the float are connected by a thin steel wire. When the servo motor is working, the gravity of the float acting on the thin steel wire will generate a torque on the magnet of the outer drum—magnetic coupling torque, which will cause a change in the magnetic flux; the magnetic flux between the outer drum components The change causes the output voltage signal of the electromagnetic sensor (Hall element) installed on the inner magnet to change; its voltage value is compared with the reference voltage stored in the microprocessor CPU; when the position of ...

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Abstract

A heavy dirty oil storage tank oil-water separation detection discharging method is disclosed. Demulsifiers are added into a thermal subsidence tank; dirty oil is mixed with water through stirring or ultrasonic wave; the storage tank is heated and the subsidence takes place for a period of time; then oil-water separation of the heavy dirty oil storage tank is detected, and discharging is performed. 1) Detection of remote control of the oil-water separation is performed; a servo motor is mounted at the upper part of the heavy dirty oil subsidence tank; one end of the servo motor is connected with an electromagnetic sensor and a floater for measuring the liquid level; sampling signals of the electromagnetic sensor and the float are communicated with a microprocessor and a computer control system. 2) The density of oil or emulsion at the height where the floater is located is calculated based on a equilibrium point position and the size of the buoyancy. 3) Data is transmitted to the computer control system; when the density values of the upper, middle, and lower layers of the oil tank approach control indexes, that is, when balance is reached, the lower, middle, and the upper layers are respectively sewage, emulsion, and free oil; and corresponding outlet valves are opened for discharging, respectively. According to the invention, the separation period of heavy dirty oil in the storage tank is shortened; the production efficiency is improved; and the energy consumption is reduced.

Description

technical field [0001] The invention relates to a method for detecting and discharging oil-water separation of heavy dirty oil storage tanks, and more specifically relates to a heavy dirty oil dehydration device suitable for oil refineries. After ultrasonic treatment, demulsifier metering, circulating pump accelerated mixing, heavy dirty oil After the oil is heated and settled for a certain period of time, the height of clear oil, emulsion and sewage can be accurately measured, and the remote control and automatic discharge is a new process method. Background technique [0002] There are many methods for measuring the oil-water interface in heavy oil storage tanks, such as manual visual inspection, mechanical methods, electromagnetic methods, ultrasonic and nuclear methods. Due to factors such as large volume, high viscosity, and small difference in oil-water density of heavy-polluted oil storage vertical tanks, the application of interface measurement technology is restrict...

Claims

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Application Information

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IPC IPC(8): B01D17/02B01D17/04B01D17/09B01D17/12
Inventor 陈红徐永业杨苏平黄贤平樊继利张宝
Owner CHINA PETROLEUM & CHEM CORP
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