RU2653777C1 - Device for operational determination of the octane number of automobile gasoline - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: using to determine the octane number of gasoline. Essence of the invention is that device according to the invention comprises a capacitive sensor, a temperature sensor, an amplifier, an ADC, a computing unit, wherein the capacitive sensor is made in the form of several rectangular plates of dielectric material, which are partially metallized, these plates are placed with a gap in the metal pipe along its axis, and the temperature sensor is located on one of these plates. O-ring seals are introduced in the device made of elastic material to prevent gasoline leakage at the junction of the device with a gasoline pipe, and the use of the lid on the metal pipe on the side opposite to the computing unit allows the test gas to be poured directly into the device.

EFFECT: ensuring the possibility of simplifying the device in a constructive and technological way, as well as providing the ability to determine the octane number of automobile gasolines in different conditions.

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Description

The invention relates to the field of measuring equipment and can be used to quickly determine the octane number of gasoline at refineries, oil depots, gas stations by car owners at the time of direct refueling with gasoline.

A device is known (RF Patent No. 2206085, IPC G01N 27/22, publ. 06/10/2003) for the operational measurement of the octane number of gasolines, comprising a capacitive sensor with an integrated temperature sensor, a processing and indication device, the capacitive sensor being made in the form of coaxially arranged cylinders connected with a handle in the housing of which RC generators are installed. When using this device, with the help of a handle, a capacitive sensor made in the form of coaxially arranged cylinders is lowered into a vessel with gasoline.

The disadvantage of this device is the difficulty of implementing the sensor and the inability to measure the octane number of gasoline moving (for example, in a pipe).

Also known is a device (RF Patent No. 2207557, IPC G01N 27/22, publ. 06/27/2003) for measuring the octane number of gasoline, which contains a capacitive sensor, a temperature sensor, an RC filter, three amplifiers, an ADC, a generator, the output of which is connected to the input a capacitive sensor, and the capacitive sensor is made in the form of a vessel with several cylinders coaxially located, in the internal cavity of which there is a thermistor and a fully submerged immersed float.

When using this device, the studied gasoline is poured into a vessel that performs the function of a sensor.

The disadvantages of the described device can also include the complexity of the sensor and the inability to measure the octane number of the moving (for example, in the pipe) gasoline.

The closest in technical essence to the proposed device is an on-board device for measuring the octane number of gasolines (RF Patent No. 2380695, IPC G01N 27/02, publ. 01/27/2010), containing a capacitive sensor, temperature sensor, RC filter, amplifier, ADC, a computing unit, the capacitive sensor being made flow-through in the form of a cylinder with longitudinal holes located radially along a section of the cylinder, into which copper cores are interconnected, and a temperature sensor is built into the cylinder of the capacitive sensor, which is installed piles vertically into a gas line gap.

The disadvantages of this technical solution are:

- the complexity of the practical implementation of the sensor in the form of a cylinder with longitudinal holes located radially along a section of the cylinder, into which copper cores are interconnected;

- a fixed (vertical) working position of the capacitive sensor, which narrows (limits) the use of the device.

The aim of the invention is to simplify a device for measuring the octane number of gasolines and to increase options for its use.

To achieve this goal in the proposed device for the rapid determination of the octane number of gasoline containing a capacitive sensor, a temperature sensor, an amplifier, an ADC, a computing unit, a capacitive sensor is made in the form of several rectangular plates of dielectric material, on which metallization is partially applied, and these plates placed with a gap in the metal pipe along its axis, and a temperature sensor is placed on one of these plates.

O-rings made of elastic material are introduced into the device to prevent gasoline leakage when the device is connected to the pipeline. When using a cap on a metal pipe from the side opposite to the computing unit, the device can be used by pouring gasoline into a metal pipe with sensors.

The invention is illustrated by drawings.

In FIG. 1 shows the proposed device for the rapid determination of the octane number of gasoline.

In FIG. 2 shows a section AA of the device of FIG. one.

In FIG. 3 is a photograph of a general view of the device.

A device for the rapid determination of the octane number of gasoline contains a capacitive sensor made in the form of several rectangular plates 1 of dielectric material, on which metallization is partially applied. These plates are placed with a gap 2 in the metal pipe 3 along its axis. Temperature sensor 4 is placed on one of these plates. In the pipe 3, from the side of the computing unit 5, there are O-rings 6 made of elastic material to prevent gas leakage when the device is connected to the pipeline.

The proposed device operates as follows.

Three applications are possible.

According to the first embodiment, the gas pipe from the source of gasoline is connected through O-rings 6 made of elastic material with a metal pipe 3, in which there is a capacitive sensor made in the form of several rectangular plates 1 of dielectric material, on which metallization is partially applied, and on one of these plates placed a temperature sensor 4. Moving through a metal pipe 3 gasoline fills the gaps 2 between the plates 1 and washes the temperature sensor 4, placed on one of the plates 1.

The signals from the capacitive sensor and the temperature sensor enter the computing unit 5, where they are processed and the result is displayed on a digital display.

According to the second embodiment, the metal pipe 3 of the device is lowered into a container with gasoline with the end opposite to the computing unit 5 so that the capacitive sensor made in the form of several rectangular plates 1 of dielectric material with partially metallized material and a temperature sensor 4 placed on one of the plates 1 were completely covered with gasoline. The signals from the capacitive sensor and the temperature sensor enter the computing unit 5, where they are processed and the result is displayed on a digital display.

According to the third option, the free end of the metal pipe 3, opposite to the computing unit 5, is closed by a cover 7 of elastic material and gasoline is poured into the pipe 3 from any source in such an amount that the capacitive sensor, made in the form of several rectangular plates 1 of a dielectric material partially coated metallization, and the temperature sensor 4, placed on one of the plates 1, were completely covered with gasoline. The signals from the capacitive sensor and the temperature sensor enter the computing unit 5, where they are processed and the result is displayed on a digital display.

The spatial orientation of the device in the above applications can be any one that ensures the complete location of the plates of the capacitive sensor and the temperature sensor in gasoline.

From the above it follows that the proposed device for the rapid determination of the octane number of gasoline is simpler than known and can be easily manufactured, replicated by known industrial methods and find wide application depending on the conditions of use.

A prototype was made (see. Fig. 3) with the given parameters of the invention. Successfully conducted production testing of the sample, which allows us to judge its applicability and practical utility.

Claims (1)

A device for the rapid determination of the octane number of motor gasolines, comprising a capacitive sensor, a temperature sensor, an amplifier, an ADC, a computing unit, is characterized in that the capacitive sensor is made in the form of several rectangular plates of dielectric material on which metallization is partially applied, and these plates are placed with a gap in the metal pipe along its axis, and a temperature sensor is placed on one of these plates.

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