RU122480U1 - ELECTRONIC MEASURING ROULETTE - ANALYZER OF SALTS IN OIL - Google Patents

Abstract

Roulette is an analyzer for the presence and determination of the concentration of salts in oil, containing an indicator, measuring, metal tape for simultaneous measurement of the level and / or interface between water and liquid organic media, characterized in that a controlled electronic circuit with a salt display is additionally mounted in the electronic roulette indicator housing. measuring unit type SPR.426331.002, one outgoing contact of the circuit is connected through the axis and the fixing screw with the tape of the tape measure, the other isolated through contact on the indicator body through the grounding cable is connected to the tank body, the reliability of the contact on the load securing unit with the tape is provided by a fixed loop-shaped conductor ...

Description

Roulette electronic measuring metal RU 2423675 C1, 01/26/2010. - the contact conductometric analyzer of the presence and concentration of salts in oil refers to the control and measuring technique and is intended for simultaneous measurement of the oil level, level of produced water, detection and measurement of the mass concentration of salts over the entire height of the tank at any point in the metal tanks (tanks) and tanks , by combining a conductivity block and a water level sensor with various electrical circuits.

It can be used in various industries, including the extraction, transportation and refining of oil.

A device for measuring the mass concentration of salts in oil laboratory AUM 101M. 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 stand - a tripod 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 electrical and 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.

Closest to the proposed technical solution is a conductivity analyzer of the salt content in oil conductivity 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 the 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.

The technical result of the proposed utility model is the simultaneous measurement of the oil level, the detection and measurement of the mass concentration of salts and the level of produced water by combining a conductivity block and an electronic measuring metal tape measure with various electrical circuits, as well as increasing the efficiency, simplicity and reliability of measurements.

Figure 1 illustrates the proposed device in General. The device comprises: a handle 1, a roulette case 2, an axis 3, a rewind unit 4, a lever 5, a measuring tape 6, an indicator and measuring unit 7 body, light windows 8, a display 9, a ground passage contact 10, a support roller 11, a contact loop 12 , the pin of the tape attachment unit 13, the load 14, the thrust bearing of the cargo of insulating material 15.

Figure 2 shows the principle of the roulette - analyzer of the presence and concentration of salt by the conductometric method, i.e. measuring current conductivity with soluble salts in crude oil. The salt concentration in the oil tank increases from top to bottom due to its subsidence. At the first touch, the conductive part of the load of the roulette 14, the surface of the oil 22, in the presence of salts, between the grounding contacts 10 of the tank, the indicator housing with the measuring unit 7 and the measuring tape 6 through the pin 23, the circuit closes through the grounding wire 19, the electronic circuit board 20 is triggered analyzer and the measuring unit 7 is automatically turned on and on display 9, digital readings of salt concentration are displayed at any point in the oil level over the entire height of the tank.

To determine the presence of water, the roulette load is lowered to the bottom of the tank 16 and the height of the stencil 17 is marked on the dashed side of the tape 6. If there is water in the tank, between the grounding contacts 10 of the tank, the indicator housing 7 and the measuring tape 6 by means of a pin 23, the circuit closes, the electronic circuit of the indicator board 21 with the light diode 8 is triggered and light appears in the indicator windows. In reverse, removing the load from the tank 16, by turning off the light diode, determine the interface between the oil-water media 18, make a second mark on the dashed side of the measuring tape 6. The difference between the marks of the high-profile stencil 17 and the media interface 18 gives in centimeters the height of the bottom water layer in the tank 16. The amount of water in liters is determined from the calibration table of the tank.

Figure 3 is an electronic circuit of the device, consisting of a DC amplifier on two transistors with galvanic coupling. The device’s power source is an element with a voltage of up to 3.0 V and an EMF in the circuit: a tape measure, an indicator contact passage through the ground cable to the tank body up to 0.12 mA.

Technical characteristics of the utility model of measuring roulette - an analyzer of salts in oil.

- measurement range from 0 to max mg / l - reduced error no more than 3% - indication of measurement results 0-9999 mg / l - control points correspond to the points of sampling and reference measuring the height of the product level on the tape measure - start measurement auto - monitoring of concentration readings visual, digital - operating mode periodic - error of water indication ± 2 mm - presentation of indicators light / visual - tape length 10 m, 20 m, 30 m, 50 m - tape marking metric - tape division price 1 mm - tape error 2.5 mm / 30 m - ambient temperature -30 ... + 50 ° C - range of measured temperatures -40 ... + 90 ° C - device design intrinsically safe - source of power 3.0 v element - current 0.12 mA - ground wire type MKShV 2 × 0.35 - Light source Light-emitting diode - intrinsic safety margin 140 times - weight 2.5 to 3.0 kg - indicator housing material aluminum alloys - measuring tape material stainless and carbon steel

The ability to repeatedly play a useful model of electronic metering tape - an analyzer of salts in oil.

Multiple, accurate reproduction of a useful roulette model - an analyzer for the presence and determination of salt concentration in oil, using a measuring unit of the Russian Federation, type СПР.426331.002 and commercial water indicator for roulettes according to GOST 7502-98 is possible when installing electrical circuits in one housing with a concentration display on existing equipment without restructuring production processes, when mounting the indicator housing on the axis of the drum of the tape winding unit. The device is not bulky, symmetrical, based on the reserves of mechanical strength, designed for the full life of roulettes and power sources. The tightness of the analyzer and indicator cases is ensured by standard seals.

A list of essential features of a useful model of electronic metering tape — an oil salt analyzer.

The proposed device allows measuring metal roulettes in accordance with GOST 7502-98 and TU of manufacturers, to turn into an electronic display device with a display that determines not only the level of oil and produced water in tanks with one measurement without using water-sensitive paste, but also to see the presence and concentration of soluble salts directly on the tank with the product, which will allow you to combine the time of metering operations and the analysis of the concentration of salt, for example in crude oil, at any point over the entire height of the tank.

Currently, there is no simple, reliable and affordable device for simultaneously conducting operations to measure product level, bottom water level, determine the presence and concentration of salts in crude oil, and there is no device for monitoring drainage, mechanical impurities, dirt and water from reservoirs along the chain from production to oil and oil products consumption. The proposed device solves these problems, and if the indicator roulette is fixed on the tank and pumped commercial water in any way, the indicator will clearly show the end of the process of pumping water without loss of product and environmental degradation.

The roulette analyzer, in addition to measuring the level of the product and produced water, is mainly designed to determine the presence and concentration of salts in oil in stationary tanks with crude oil and oil products, differs from the prototype:

- the presence of a light electronic indicator, in the case of which a circuit and a display of the salt analyzer are mounted, the case is fixed on the axis of the tape winding mechanism;

- the presence of a four-digit display of readings of salt concentration in crude oil;

- the presence of a contact on electronic circuits, which is connected to the measuring tape;

- the presence of a second insulated feed-through contact on the indicator housing, connected to the electronic circuits of the indicator and display, and through the roulette ground cable to the tank body;

- the ability to simultaneously and quickly, in the field, to carry out at any time of day and in any weather, operations to determine the presence and concentration of salts in crude oil;

- the ability to simultaneously and quickly, in comfortable conditions, to carry out at any time of the day and in any weather all operations for measuring oil products and produced water in tanks without the use of water-sensitive pastes;

- control the pumping or drainage of produced water from reservoirs with oil and oil products.

Claims (1)

Roulette - an analyzer for the presence and determination of the concentration of salts in oil, containing an indicator, measuring, metal tape for measuring the level and / or interface of water and liquid organic media at the same time, characterized in that a controlled electronic circuit with a salt display is additionally mounted in the body of the electronic roulette indicator measuring unit type СПР.426331.002, one outgoing contact of the circuit is connected via an axis and a fixing screw with a tape measure, another insulated through contact on the case of the kator through the grounding cable is connected to the tank body, the reliability of the contact on the load securing unit with the tape is provided by a fixed conductor in the form of a loop.