RU137986U1 - ELECTRONIC METROPOLE - ANALYZER OF SALTS IN OIL - Google Patents

Abstract

Electronic metro rod - an oil salt analyzer consisting of a measuring rod, a protective housing, a sensor with end contacts, characterized in that an electronic test cell is placed in the housing, connected to the display and end contacts spaced at a minimum constant distance from each other, allowing the salt concentration shall be determined in the average sample of vertical tanks and / or at any point at a controlled level of other types of tanks and containers in mg / l.

Description

The contact conductometric electronic metro-rod analyzer belongs to the control and measuring technique, consists of a measuring rod, a protective case with an electronic test cell and is designed to detect and measure the mass concentration of oil salts in the average sample of vertical tanks and / or at any point of a controlled level of other types of tanks and containers.

The utility model can be used in various industries, including oil production, transportation and refining.

A laboratory device AUM 101M is known. Certificate RU. C.31.065A No. 12084. SPR. 414311.001 TO.

The device consists of a measuring unit (BI) and a primary transducer (PP). The measuring unit is a printed circuit board with radio elements located on it, fixed to the legs on the base of the metal housing of the device. The BI front panel has openings for controls and displays. PP is a tripod stand with electrodes installed in it, thermal resistance and a connecting cable mounted on a round stand. In the stand there is a screw-in bottom for installing a glass with a measured sample. On the side of the stand, along the generatrix, there is a locking screw that prevents spontaneous unscrewing of the bottom after adjustment.

The disadvantage of this device is the design complexity. Long exposure under normal conditions before use up to 8 hours. The complexity of the preparation of working solutions and gas contamination of the premises. High degree of explosion hazard. At the end of the measurements, a double washing of the cup and PP electrodes is mandatory, first with gasoline, and then with a solvent. Estimates of the approximate concentration of salts require the preparation of a number of samples with time-consuming analysis.

A device is known. The analyzer of the content of salts in oil conductometric K23050. The company "Koehler Instrument Company", USA 46404-11 MP 242-0969-2010 1 year. The portable conductometric analyzer of the content of salts in crude oil provides reliable measurement of salt content in accordance with ASTM D3230, IP 265. The device is supplied ready-made with preliminary calibration. It does not require complex and lengthy preparation for work. The measurement results are displayed as salt concentration in g / m ³ . At the same time, the temperature and conductivity of the sample are measured. Measurement results can be transferred to a PC via a serial port.

The disadvantage of this device is the complexity of the design solution and, as a consequence, the high cost. The device is applicable for monitoring the salt content only in the sample. Directly on the tank, tank car or tanker at a given level, in any weather at any time of the day can not be applied.

Closest to the proposed technical solution is the device Patent for utility model No. 122480 of 11.22.2012 electronic metering tape-analyzer of salts in oil. The device includes: a handle, a tape measure case with a fixed display, an axis, a rewind unit, a lever, a measuring tape, a light indicator case, light windows, a ground contact through passage, a tape measure ground connection, a support roller, a contact loop, a tape attachment pin, a load, thrust bearing of insulating material.

To determine the presence and concentration of water-soluble salts, the roulette load is lowered to the bottom of the tank and the height of the stencil is marked on the dashed side of the tape, in the presence of water-soluble salts in the tank, between the ground contacts of the indicator housing and the measuring tape, the circuit closes and the electronic circuit of the indicator with a light diode is triggered , light appears in the indicator windows. In reverse, removing the cargo from the tank, by switching off the light diode, determine the interface between the oil-water media, make a second mark on the dashed side of the measuring tape. The difference between the marks of the high-altitude stencil and the interface between the media gives in centimeters the height of the bottom water layer in the tank. According to the calibration table of the tank, determine the amount of water in liters.

The disadvantage of this device is the dependence of the accuracy of the salt concentration on variables: the diameter of the tank, the height of the oil spill, the presence of water in the oil, the contact area of the metering tape, and the oil temperature. The presence of a large number of accounting values give a large error in the measurement results.

The technical result of the proposed utility model is the detection and measurement of the mass concentration of salts in oil of all types of tanks and containers and in the average sample of vertical tanks directly on the spot. At the same time, the time for the production of analyzes is reduced, the efficiency and reliability of measurements is increased.

FIG. 1 illustrates the proposed utility model in General. The model contains: a measuring rod with a scale of 1, a thrust bearing 2, a protective indicator housing with an electronic test cell 3, display 4, connecting wires 5, end contacts 6.

FIG. 2 illustrates the operation of the utility model in detecting the presence and concentration of salts in oil: the metro-rod analyzer 1 is lowered into the tank 7, the electronic circuit of the test cell located in the indicator housing 3 is triggered, contacts 6 are closed, and if there are salts on the display with backlight 4, the digital salt concentration in mg / l.

FIG. 3 represents an electronic circuit of a utility model consisting of a direct current amplifier on two transistors with galvanic coupling and a measuring device, at the input of which a variable voltage value with an LED is taken. The power source of the amplifier is an element up to 3.0 V, The power source of the test cell is an element with a voltage of 9.0 V.

Technical characteristics of the metro-rod analyzer.

range of determination of salt content of chloride salts 0-2000 mg / l accuracy of salinity determination meets the requirements of GOST 21534-76 presentation of indicators digital / light / visual metro line scale length 0.5 m; 1.5 m; 3.0 m; 3,5 m; 4.0 m; 4,5 m scale marking metric scale division price 1 mm scale error 1.0 mm / 4.5 m ambient temperature -30 ... + 50 ° С temperature range -40 ... + 90 ° С device design intrinsically safe source of power cell 3.0 V, 9.0 V current 0.12 mA ground wire type MKShV 2 × 0.35 Light source Light-emitting diode intrinsic safety margin 140 times weight from 1.0 to 1.8 kg rod and body material aluminum alloys distance between contacts 20 ± 1.0 mm

The ability to repeatedly play the metro-rod analyzer.

Multiple, accurate reproduction of an electronic metro-rod analyzer of salts in oil is possible on existing equipment without restructuring production processes. Metroshtok analyzer, consisting of a measuring aluminum rod with a thrust bearing, a protective indicator housing with an electronic test cell, an amplifier, a measuring device, a backlit display and end contacts spaced at a minimum constant distance from each other, allowing to minimize errors during calibration of the device against analogue. The analyzer is not bulky, mechanically strong. The tightness and electrical safety of the utility model are provided by standard seals and circuitry.

The list of essential features of the electronic metrostock analyzer of salts in oil.

The proposed utility model allows, according to the specifications of manufacturers, to use the device to detect and measure the mass concentration of salts in oil. A considerable amount of time is spent on the production of analyzes of salts in oil, and they are expensive.

Electronic metro-rod analyzer - designed to determine salts in all types of tanks and containers at any point with measuring the product level, and in vertical tanks according to the average sample directly at the measurement site, it differs from the prototype:

1. The presence of fixed contacts spaced at a minimum constant distance from each other, which helps to reduce distortion of the waveform;

2. The presence of an electronic circuit of the test cell, consisting of an amplifier and a measuring device, to increase the speed of analysis;

3. The presence of the display;

4. The presence of backlight for night time work;

5. No preparation of concentrated solutions and distilled water is required;

Claims (1)

Electronic metro rod - an analyzer of salts in oil, consisting of a measuring rod, a protective housing, a sensor with end contacts, characterized in that the housing contains an electronic test cell connected to the display and end contacts spaced at a minimum constant distance from each other, allowing the salt concentration is determined in the average sample of vertical tanks and / or at any point at a controlled level of other types of tanks and containers in mg / l.

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