SU12366A1 - Device for taking an average sample from oil storages - Google Patents

Description

The present invention relates to instruments for taking medium and private samples from oil storages equipped with tubes of different height, designed to take samples from different levels.

In this device, for the above purpose, connected to pipes arranged at different heights are used tanks filled with water, during removal of which the oil samples are sucked through the pipes and sent to the receiver.

In FIG. 1 shows a vertical section of the device; FIG. 2-cross section.

The proposed instrument consists of a reservoir b and a cap a. The reservoir 6 is placed on the bottom of the reservoir-oil storage and the cap and is located above it. In the receptacle formed by cap a and tank b, there are partitions forming thirteen compartments. The twelve of these compartments, located in tank b, have the same shape and size and are compartments for private samples. The thirteenth compartment, formed by cap a and ring partition of vessel b, is intended for the middle sample. Vertical pipes exit from each compartment for the private sample, the upper ends of which are located at different distances above the common bottom of the tank and its filling level. Thus, each of the compartments is connected to a certain level of liquid poured into the reservoir. In addition, in each of these 12 compartments, there is a channel d connecting it with the compartment for the middle sample and the tube f passed through the bottom to the outside and fitted at the end with a tap. A pipe g and a pipe e having a tap 6 come out of the middle sample compartment. The tube g is connected to the water mains using the branch pipe tee and valve k. Between tees n, p is installed gauge glass L.

In a non-working state, the device is filled with water, approximately to the level H, in the water-metering glass L, water will also stand. When sampling on gauge glass A, an atmospheric (purge) valve opens and water is released from the instrument. It is most convenient to use this particular valve, because its size around V gives a moderate speed of emptying the device.

The level T / end of pipe g is the weir of the appliance. If the water is lowered to this level, the outlet opens to the product. In order to avoid its loss, it is necessary to close the water when it is

between levels H and h. This level H must be marked on the glass. As water is poured out of the device, it will be replaced by the product entering the device through pipes.

Initially, twelve private sample compartments are filled, each with a product taken from that horizon (tank) in which the end of the pipe is placed. From the private sample compartments through channels d, the product enters the medium sample compartment, initially filled with water, floats there and gradually drives the water down.

When the amount of water in the instrument is brought to H level, the instrument is ready for taking both private and medium samples. Private sampling is carried out by opening a tap of any of the pipes f, and to obtain an average sample, the tap b on the pipe is opened. When taking a private sample, the liquid flowing from the corresponding separation can be replenished (from the reservoir) in two ways: either through a pipe with or through a channel d. This second way, which could be medically averaged to a particular sample, should be excluded, since compared to the first, the fluid particles have an excess resistance in the form of two channels d and the distance between them.

After sampling, valve k opens and the device is filled with water to normal (non-operating) level. At the same time, the oil product from the private sample compartment is forced into the reservoir through pipes c. A part of the product from the compartment for the average sample that took place there between the levels L and // will be forced out there. The part of the product, sitting above level H, will be separated by water from the outlet to the tank and can be forced out by water to the outside through a tube e.

Thus, after sampling and bringing the device to an inoperative state, a certain amount of product taken from different horizons enters the tubes with. The product remaining in the tubes, isolated from the rest of its mass in the tank, may be different in composition from this, the latter.

When taking a sample, this undesirable product as a sample first gets into the device. Therefore, before taking a sample, you should lower the device through a tube with a certain amount of product.

For catching and returning to the reservoir of the first sample to be discharged, the vessel 7P is attached to the tube e by means of a crane 1. Opening the valve 1 simultaneously with the air valve 2, the product can be lowered from the device. The amount of product is observed in gauge glass 5. When taps 1 and 2 are closed and valve 4 is open, connecting the vessel to the water supply system, water flows into the vessel and upon filling it, a pressure equal to the pressure of the water supply system is formed in it. Using a plunging pressure through a crane 3 connecting the vessels to the tank, the oil from the vessel can be forced out into the tank. The emptying of the vessel from water can be done by means of an atmospheric tap of water-gauge glass 5.

The subject of the patent.

1. An instrument for sampling an average sample from oil storages, equipped with tubes at different heights, designed for sampling from different levels, and gauge glass, characterized in that a reservoir separated by not reaching to the bottom ring is used for taking medium and private samples and radial partitions into 12 compartments equipped with vertical pipes c for the collection of private samples, exhaust pipes f equipped with taps and with the help of channels d connected by a formed annular partition and cap a from ELENITE for average sample, connected to the water pipe and the discharge pipe g / serving for ejecting the device from the water and taken five sample average oil when draining the water coming into the middle compartment ua tubes with the channels d.

2. At the device indicated in item 1, the device for catching and returning to the tank is first discharged

part of the sample, characterized in that it consists of a vessel m with gauge glass 5, connected by pipelines with a pipe /, a tank b and a water pipe g, and equipped with taps 1, 2, 3, 4 arranged in such a way

that with open taps 1, 2 and closed taps 3, 4, oil from pipe I enters the vessels, and with closed taps 1, 2 and open 3, 4, the oil in the vessel is directed to the oil storage tank.

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