Device and method for microwave transmission method-based detection of water content of oily sludge deposited at tank bottom in storage and transport

Abstract

The invention discloses a device and a method for microwave transmission method-based detection of water content of oily sludge deposited at tank bottom in storage and transport. The device for detection mainly comprises a microwave measurement part, a signal processing part and an intelligent control part. The microwave measurement part mainly comprises a microwave signal source, a modulation switch, a microwave sensor (comprising a transmitting antenna and a receiving antenna) and a wave detector. The signal processing part mainly comprises a frequency-selective amplifier module, a true virtual value detection module and an A / D transition module. The intelligent control part mainly comprises a MSP430 one-chip microcomputer control system, a LCD display module, a RS232 serial interface module and a power supply module. The device has the advantages of high measurement precision, wide measurement range, fast measurement rate and carrying convenience and can be used for fast detection of water content of oily sludge in the industrial site.

Description

technical field [0001] The invention belongs to the technical category of detecting the moisture content of oil sludge in storage and transportation, and in particular refers to a detection device and a detection method for the moisture content of oil sludge in storage and transportation based on a microwave transmission method. Background technique [0002] Oil sludge refers to various forms that may cause environmental pollution due to soil and other impurities mixed in crude oil during the exploration, mining, storage, transportation, refining, and processing of oil, so that the oil in it cannot be directly separated and recovered. mixture. On the one hand, oil sludge contains benzene series and phenolic substances, which are highly dangerous pollutants (item HW08 in the National Hazardous Waste List), and direct discharge is extremely harmful to the environment and organisms; on the other hand, some oil sludge contains oil The rate of oil sludge is relatively high, and ...

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Problems solved by technology

The disadvantages of this method are: firstly, the microwave system is more complicated, the equipment cost is high, and the maintenance cost is high; secondly, the microwave transmission method has high requirements on the stability and uniformity of the sample. Measurement accuracy has an impact

[0017] The measurement methods designed by using electrical characteristics are generally faster, the measurement process does not require complicated operations, and the safety is good, but these methods have their own limitations, and these existing achievements are all based on crude oil. , water two-phase mixture, and oil sludge has three phases of oil, water, and sand, so these methods cannot be directly applied to the water content measurement of storage and transportation oil sludge. According to the characteristics of oil sludge, certain improvement and optimization are needed.

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