SU1346962A1 - Sampler - Google Patents

Abstract

The invention relates to devices for sampling from tanks and can be used in various industries of the national economy, including in the oil refining industry, as well as in gasoline and oil storage tanks. The purpose of the invention is to expand the functional possibilities. possibilities and simplification of dismantle. The sampler consists of a sampling flexible tube, a movable block resting with its groove on a flexible tube, at the end of which a shut-off member is installed, a pneumatic valve connected by means of a fitting to a flexible tube and two pneumatic lines, one of which is connected to the cavity of the pneumatic valve and the other to hydraulic cavity of this valve. The first air line serves to open the inlet | ".

Description

1346962

Pneumatic valve and filling tube. For transporting the mani of the flexible tube, the second - for the pneumatic valve serves as a cable, forcing the selected sample out of the bend-2.

one

The invention relates to sampling devices and can be used in various public areas for selecting medium and layer-by-layer fluid samples from surface and subsurface reservoirs.

The purpose of the invention is to enhance the functionality and simplify: no dismantling.

FIG. 1 shows a sampling diagram; in fig. 2 - locking organ.

The sampler consists of a flexible sampling tube 1, one end of which is brought out and a shut-off organ 2 is installed on it, which serves to communicate with the external atmosphere during sampling, sealing it between sampling and draining the sampled samples, the second end of tube 1 is connected to the hydraulic cavity of the valve 3, the counterweight 4, which grooves on the sampling tube 1 and is designed to reliably return the sampling tube to its original polishing when the valve 3 is raised, the guides, the cables 5 and the stops 6, the pneumatic suspension a gadfly 7 connected to the pneumatic cavity of the valve, and an additional pneumatic line 8 connected to the hydraulic cavity of the valve 3, valves 9 and 10 installed on the pneumatic lines 7 and 8, and a cable 11 intended to lift the valve 3 to its original position. The screw body consists of a cup 12-with a hole 13 located in its side surface, fitting 14, with the help of which the gate organ is connected to the outer section of the sampling tube 1, body 15 placed inside the cup 12 and fitted with a spring-loaded plate 16 fixed to current 17, and the drain hole 18 ;, located with the possibility of its blocking spring plate 16. The diameter of the hole 13 must be

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equal to or greater than the internal diameter of the sampling tube 1. The diameter of the drain hole 18 in order to prevent bubbling when displacing the liquid from the sampling pipe - kk 1 long fins is smaller than the internal diameter of this tube.

A pneumatic valve consists of a bellows 19 disposed inside the valve body 3, into the internal cavity of which air is supplied to open valve 3 via pneumatic line 7, plug 20, fitting 21, to which pneumatic line 8 is connected to supply air (inert gas) to ignite the sampled sample from the inner section of the sampling tube 1 to the outer section and draining it into the dishes, the piston 22 mounted on one stick with the stopper 20 and the fitting 23, to which the sampling tube 1 is connected.

The sampler works as follows.

In the initial polol; e shi valve: 3 is above the surface of the liquid; the counterweight 4 is in the middle part of the sampling tube 15 lowered slightly below the middle of the tank, and the locking member is closed. B the place of the exit of the sampling tube 1 to the pneumatic lines 7 and 8 outside they are rigidly fixed.

Before sampling from both ground and deep reservoirs, the body 15 is not completely turned out of the cup 12, and through the opening 13, the sampling tube 1 is connected to the outside atmosphere. The sequence of the discharge operation in the selection of the average sample from both ground and recessed tanks is as follows.

The valve 9 is opened and air (gas-i-gas) through the pneumatic pipe 7 is fed into the internal cavity of the bellows 19, and the plug 20 opens the inlet of the valve 3. The inlet of the nozzle 21 in this

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The case is blocked by a piston 22, and the inlet of fitting 23 is open. Then valve 3 in the open position is lowered to the full depth of the inlet. The counterweight 4, under the weight of the clap. 3, together with the tube 1 and the air lines 7 and 8, is moved along the guide cables 5 to the upper end position. When the valve 3 reaches the lower layer of liquid, the air pressure is released, while the plug 20, by the action of the elastic forces of the spring and the bellows 19, closes the inlet of the valve 3, then the housing 15 is screwed up to failure into the cup 12, the valve 10 and air (inert gas) opens through the pneumatic conduit 8 and the fitting 21 is supplied to the hydraulic cavity of the valve 3. The carved column of liquid 20 under pressure of air (inert gas) from the sampling tube 1 is gradually forced into the outer portion of the tube. Then, by pressing the rod 17 of the plate 16, the drain hole 18 and the cut out column of liquid from the inner portion of the tube 1 are pushed out completely into the outer portion and out of it into the dishes. After the complete sampling has been drained, the drain hole 18 (when the previously applied 1x force was removed to the rod 17 when removed) under the action of the elastic force of the spring is blocked by the plate 16. When displacing the liquid column from the sampling tube 1, one condition must be met. The air pressure (inert gas) supplied to the hydraulic cavity of the valve 3 must be lower than the pressure supplied to the bellows cavity 19. After the sampled sample is drained into the dishes, the valve 3 rises up with a cable 11, and the counterweight 4 in this case moves to lower end position.

When sampling layered samples, the sampler works as follows.

The valve 3 is lowered to a predetermined depth, then, as in the selection of the middle sample, the valve body 15 is not fully reversed, then the valve 9 opens and, via the pneumatic line 7, air is fed through the choke 21 to the bellows 19,

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at the same time, the plug 20 opens the inlet of the valve 3 and through the fitting 23 the liquid enters the sampling tube 1, and the inlet of the fitting 21 in this case is blocked by the piston 22. After some time, the body 15 is wrapped to full failure, the air pressure (inert gas ) from the pneumatic line 7, the plug 20 is relieved by the action of elastic forces of the spring and bellows 19 closes the inlet of the valve 3, and the piston 22 opens the inlet of the fitting 21. Then the valve 10 and the air through the pneumatic line 8 open, through the fitting 21 t in the hydraulic cavity of the valve 3, the liquid column is displaced from the inner portion of the flexible sampling tube 1 to the outer, and from it through the drain hole 18 into the dishes. If the sampling amount taken at one time is insufficient for producing an analysis, the sampling procedure is repeated.

The economic effect of using the proposed sampler is made up by reducing the cost of its repair and versatility, since it can be used for sampling from both surface and underground or underground reservoirs.

Claims (1)

Invention Formula A sampler containing a pneumatic valve, a flexible sampling tube, equipped with a counterweight, made as a movable block with a groove with a locking organ at the end of the sampling tube, guide cables for moving the counterweight, an air line, characterized in that and simplify dismantling, the sampler is equipped with an additional pneumatic line connected to the cavity of the pneumatic valve, and an additional valve, made in the form of a housing with a hole, placed m inside the valve body and equipped with a spring-loaded plate. 15 P ..E