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On-line oily sewage detection device and detection method based on ultraviolet fluorescence method

A detection device, a technology for oily sewage, applied in measurement devices, fluorescence/phosphorescence, material analysis by optical means, etc., can solve the problem of inability to monitor the oil content of sewage discharge in real time, and achieve convenient operation and maintenance, monitoring and management. Reduce and improve The effect of accuracy

Active Publication Date: 2020-09-01
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution can only realize the function of manual discharge of oily sewage, and cannot monitor the oil content in the sewage during the discharge process in real time

Method used

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  • On-line oily sewage detection device and detection method based on ultraviolet fluorescence method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, what described in embodiment 1 of the present invention is a kind of online oily sewage detection device based on ultraviolet fluorescence method, and this device comprises:

[0040] The sampling head of the probe 1 is vertically inserted into the oily sewage pipeline 31 , and the tail of the probe 1 is exposed outside the oily sewage pipeline 31 . The oily sewage in the oily sewage pipeline 31 is transported to the sample storage device 10 through the probe 1 as an oily sewage sample for detection.

[0041] The first three-way valve 4, its input end is connected to the tail of the probe 1, the first output end of the first three-way valve 4 is connected to the first input end of the first three-way solenoid valve 8, and the second output end of the first three-way valve 4 The end is connected with the input end of the sampling pump 18. After the oily sewage flows through the first three-way valve 4, it is divided into two paths, wherein the...

Embodiment 2

[0056] Embodiment 2 of the present invention utilizes the detection method of the above-mentioned online oily sewage detection device based on the ultraviolet fluorescence method, the method comprising:

[0057] Step 1. Through the pressurization of the sampling pump 18 , the oily sewage sample enters the sample storage device 10 through the probe 1 . The pressurization effect of the sampling pump 18 can make the oily sewage in the oily sewage pipeline 31 smoothly pass through the probe 1 and enter the sample storage device 10 as an oily sewage sample for detection.

[0058] Step 2, the ultraviolet light emitted by the ultraviolet fluorescent device 12 is irradiated to the oily sewage sample in the sample storage device 10 through the filter 11, and the oil in the oily sewage sample is irradiated by ultraviolet light to produce a fluorescent effect;

[0059] Step 3: The photoelectric detector 9 converts the fluorescence effect generated by the sample into an electrical signal ...

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Abstract

The present invention discloses an online oil-containing sewage detection apparatus based on an ultraviolet fluorescence method, and a detection method thereof. The online oil-containing sewage detection apparatus comprises: a probe, wherein the sampling head of the probe is vertically inserted into an oil-containing sewage pipeline, and the tail portion of the probe is exposed to the outer portion of the oil-containing sewage pipeline; a first first three-way valve, wherein the input end is connected to the tail portion of the probe, a first output end is connected to the first input end ofa first three-way electromagnetic valve, a second output end is connected to the input end of a sampling pump; a sample storge device, wherein the input end is connected to the output end of the firstthree-way electromagnetic valve, the output end is connected to the input end of a second three-way electromagnetic valve, and the first output end of the second three-way electromagnetic valve is connected to the input end of the sampling pump; a flange, wherein the input end is connected to the output end of the sampling pump, and the output end is connected to the oil-containing sewage pipeline; a photodetector arranged on one side of the outer portion of the sample storge device; an ultraviolet fluorescence device arranged on the other side of the outer portion of the sample storge device; a peristaltic pump, wherein the input end of the peristaltic pump is connected to a cleaning tank, and the output end is connected to the input end of the sample storage device; and a tail liquid collection device connected to the second output end of the second three-way electromagnetic valve.

Description

technical field [0001] The invention relates to the technical fields of detection of oil content in oily sewage of crude oil storage tanks and sampling of oily sewage in oily sewage discharge pipelines of crude oil storage tanks. Specifically, it relates to an online oily sewage detection device and detection method based on an ultraviolet fluorescence method. Background technique [0002] At present, with the extraction of crude oil from the ground, the crude oil will contain a certain amount of water more or less. Usually, as the storage time of crude oil in the storage tank is extended, the free water and dissolved water in the crude oil will be affected by the environmental temperature, storage Changes in tank static pressure and other factors will gradually separate crude oil from the crude oil, forming an oily sewage layer at the bottom of the storage tank. Before the crude oil is exported, the oily sewage at the bottom of the crude oil storage tank needs to be discharg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/64G01N21/15
CPCG01N21/15G01N21/64G01N2201/13
Inventor 聂中文陈子赓张文伟姜宇澄刘骁枭于永志
Owner BC P INC CHINA NAT PETROLEUM CORP