SU16921A1 - Instrument for taking average samples of petroleum products - Google Patents

Description

In the proposed device for taking medium samples of petroleum products in order to open the device at the desired depth, a rod is used connected to the bottom cover of the device and provided with threads that the piston, which is the top cover, does not spontaneously allow you to change the volume of the test cylinder.

FIG. 1 shows a front view of a closed instrument, with the left half of it being represented in a longitudinal section; in fig. 2 is a side view of it; FIG. 3 shows a top view of the device.

The bottom cover 1 is fixedly connected to the rod 2 by means of a screw 3, passed through a hole made in the center of the cover and screwed into the rod from the bottom. The lower part of the rod is provided with a screw thread, on which, to strengthen the bottom cover, the piston 4 is screwed from the bottom like a nut. Attachment 5 is attached to the upper end of the rod to suspend the device on a steel measuring tape. A tube 6 is attached to the rod with a scale of the same length and internal diameter with the upper (not provided with a screw thread) part of the rod. A screw 7 is screwed into the hole made at the top of the tube.

to rotate and fix the tube in order to find the possibility of its involuntary movement relative to the rod. On the piston 4 is put on the cylinder 8 (pipe section). The bandage 7 is attached in such an area of the tube 6 that, with the position of the cylinder 8, when its lower edge is at the lower surface of the piston 4, the upper edge of the cylinder 8 abuts against the wilt 7.

In order to prevent the cylinder from tilting during its lowering when it is in an unstable position (raised high), a plate 9 is provided attached to the upper edge of the cylinder, with a hole of diameter equal to the outer diameter of the tube 6 that plays in this section. the role of the nanravla. At the upper edge of the cylinder there are two tabs 10 for tying the ends of the frenulum 11, to which the end of the cable I.1 and the flagellated 12.

To reduce the weight of the device, rod 2 can be replaced by a tube, and tube 6 can be replaced by two rings of segments of the same pipe fixedly connected by two rods. All parts must be metal. For everyday work, it will be more convenient if the distance from the upper surface of the lower clan is 0 to the measuring tape, when

the device is suspended on it, will be expressed in whole tens of centimeters.

To achieve a hermetic seal, the inner surface of the cylinder 8 and the piston 4 that is in contact with it, as well as the lower edge of the cylinder 8 and the surface of the cover 1 that adjoins it when the device is closed, are ground. For the same purpose, a circle of rubber or some other suitable material may be glued to the lower piston.

Use the device as follows: after determining the height of the layer from which it is necessary to take a sample, install the upper end of tube 6 in the same division, which corresponds to the height of the layer in mm. To do this, holding the device standing on something for something 5 with the left hand, rotate it with the right hand. screw 7 together with the tube 6 around the rod 2 in the desired direction. After installation, the screw 7 is secured. The closed instrument is lowered on the tape measure to such a depth that the upper surface of the lower cover 1 coincides with the lower level of the layer from which the sample is taken. With the help of a cable or flail 12, the cylinder rises to failure. Then the cable is released, and the cylinder falls down due to its gravity, the closure of the test column.

The subject of the patent.

A device for taking medium samples of petroleum products, characterized in that, in order to open at the desired depth in the device, an orifice of the specified size, it uses a rod 2 connected to the lid 1, fitted at the top with a tube 6 fitted on it with a scale and stop screw 7, and at the bottom a thread serving to move the piston 4 up or down, intended to change the volume of the sample to be taken.

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