SU1606934A1 - Apparatus for determining concentration of oil (petroleum products) in water - Google Patents

Abstract

The invention relates to devices for analyzing liquid oil-containing media and allows to simplify the design, reduce the metal consumption and shorten the analysis time. For this, the sample preparation unit for analysis is made in the form of a hollow cylinder, inside which chambers are successively located from top to bottom: extraction and separation of water from solvent

for solvent dehydration

with solvent that absorbed oil

fine coal with perforated inlet tube

with purified solvent. In this case, all the cameras are separated from each other by partitions of porous material. 2 Il.

Description

The invention relates to the analysis of liquid media, in particular to devices used to measure the content of oil (oil products) in waters discharged from ships (solid, bilge and ballast), in waters discharged by refineries and service stations of a motor fleet, and can be widely used in various industries (chemical, paintwork, etc.).

The purpose of the invention is to reduce the time of analysis, as well as to simplify the design and mind: the removal of the metal consumption of the device.

FIG. 1 is a schematic diagram of the proposed device; in fig. 2 - block preparation. Samples for analysis.

The device contains a filter 1 for cleaning the water-oil mixture from mechanical impurities (0.5 mm in size),

metering pump 2 water-oil mixtures, installed between the filter; 1 and a sample preparation unit 3 for analysis, a metering pump 4 installed between the reference cuvette 5 and a sample preparation unit 3 for analysis, a metering pump. 6, installed between the working cuvette 7 and the sample preparation unit 3. The sample preparation unit 3 for analysis is connected by pipeline 8 to a dosing pump 2, pipework 9 -, to a dosing pump 4, pipeline 10-s: a dosing pump 6, pipeline 11 - to a working cuvette 7, pipeline 12 - to a reference cuvette 5. The IR photometer 13 via the electronic unit 14 has an output to the secondary device 15.

The sample preparation block 3 for analysis includes a body in the form of a glass, consisting of the upper 16 and lower 17 parts, respectively. The metal porous mesh partition 18 forms an extraction chamber 19, inside which

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The cup is coaxially mounted a cup 2 (J with an expanding base 21 of perforated metal. Inside the cup 20, elements 22 are installed for intensive mixing, as well as nozzles 23 and 24, respectively, for the solvent and water-oil mixture to enter.

Around the cup 20, two hollow cylinders 25 are mounted. With holes c. top part. In the upper part of the chamber 19 there is an outlet nozzle 26. Under the mesh-partition 18, a strip 27 of porous material is installed, under it (between metal partitions) a chamber 28 is formed, filled with silica gel, and below (between metal partitions) a chamber 29 is formed with a solvent, There is an inclined tray 30 with an outlet through the nozzle 31. Under the chamber 29 a regeneration chamber 32 is formed (also between partitions) filled with finely dispersed activated carbon and having a perforated tube 33 made of porous material (for example, titanium). At the base of the glass 29 there is a chamber 34 with a purified solvent and an outlet 35.

The device works as follows.

The water oil on the emulsion is cleaned of mechanical impurities in filter 1 (excess is drained), taken by metering pump 2, and then through line 8 through pipe 24 enters the cup 20. At the same time, the purified solvent is taken from pump 34 through pipe 35 through standard The cuvette 5 of the IR photometer 13 and through the pipeline 9 through the pipe 23 enters the cup 20, where an extraction takes place on the intensive mixing elements 22. The oil contained in the water dissolves in the solvent. This mechanical mixture enters the conical part of the cup 20 and passes through the porous metal onto the mesh. A partition 18, under which is a strip 27, easily wetted by a solvent that absorbs the oil that seeps down into the chamber 28 filled with silica gel. With vigorous stirring fine water is entrained with the solvent (with a particle size of less than 20 µm through the bar 27. Once in the chamber 28

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five

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fine water is absorbed by the silica gel, and the solvent seeps down and, having passed the net-partition 18, cleared of fine water droplets, enters the chamber 29 and along the inclined tray 30 through the nozzle 31 enters the working cuvette 7 of the IR photometer 13, from where taken by metering pump 6 through pipe 10 and perforated tube 33 into chamber 34. Water, free from oil, accumulates in chamber 19 and through the upper openings of hollow cylinders 25 through outlet 26 is discharged into the drain.

The device is characterized by the following parameters: chamber height 19-20 mm; internal diameter of one hollow cylinder, mm; the inner diameter of another hollow cylinder is 45 mm; inner diameter of the body of each of the parts of the glasses 16 and 17 - 50 mm; the thickness of the mesh partitions 18 (and others) - 2 mm; grid partitions 18 (and others) - 0.5x0.5 mm; strip thickness 27 - 5 mm; porosity coefficient - 40%. pore size - 20 - 80 microns; chamber height 28-15 mm; chamber height 29 - 25 mm; chamber height 32 - 50 mm; chamber height 34 - 20 mm; pore size of the tube 33 - 30 - 50 microns.,

In the proposed device, performing a sample preparation unit for analysis in the form of a hollow cylinder, inside which the extraction chamber is arranged successively, the solvent dehydration chamber, the solvent chamber, the regeneration chamber, the purification solvent chamber, simplifies the design, reduces the metal intensity (more than 10 times ) and reduces the analysis time (more than 2 times).

Claims (1)

Invention Formula A device for determining the concentration of oil (oil products) in water, including a mechanical cleaning filter; and, dosing pumps for the sample of the water-and-oil mixture and solvent, a sample preparation unit for analysis, an infrared analyzer, a measurement and indication unit, characterized in that to reduce the analysis time, simplify the design and reduce the metal consumption, the sample preparation unit for analysis is made in the form of a cylinder inside which the extraction chamber and the separation of water from the solvent are arranged from top to bottom, a hollow cylinder placed coaxially inside the chamber, a chamber for solvent dehydration, a chamber with solvent that has absorbed 160 1606934 oil, regeneration chamber With a dispersed carbon located in the chamber a perforated tube for supplying a purified solvent, a chamber with a purified solvent, all chambers being separated from each other by partitions of porous material. U5 / V // 3 -GR U-M well figure 1 lt t .. 57 . g