RU2764211C1 - Additional detachable sealing device for the top loading of petroleum products - Google Patents

Abstract

FIELD: petrochemical industry.

SUBSTANCE: invention relates to the petroleum and chemical industry, namely to devices for the upper filling of light and dark petroleum products into tank cars and tank trucks on fuel transfer railway terminals, as well as truck filling points of oil depots, oil refineries and end points of trunk oil pipelines. An additional detachable sealing device for the upper filling of petroleum products consists of a corrugated rubber cuff with a diameter of 645 mm and two metal clamps with locks. The corrugated rubber cuff serves as the main sealing element and is fixed in two places with the help of clamps. From above, the cuff is pressed against the sealing disc, and from below it is fastened to the hoop of the neck of the tank boiler.

EFFECT: sealing of the connection between the filling device and the neck of the tank is achieved during the filling operation.

1 cl, 2 dwg

Description

The invention relates to the oil and chemical industries, and in particular to devices for the top loading of light and dark oil products into tank cars and tank trucks on railway loading racks, as well as autoloading points of tank farms, oil refineries and end points of main oil pipelines.

A device for draining and filling is known (USSR Author's certificate No. 1353724, IPC B67D 5/04, publication 11/23/87), including a sealing cover in the form of a coil on the lower end of which there are guides, and on the hub there is an elastic chamber.

However, the disadvantage of the above technical solution is the impossibility of free movement of the filling pipe and, as a result, the creation of stresses in the joints and the likelihood of seal failure. In addition, this device does not solve the problem of gaps in cases where the hatch of the tank is an obstacle to the full lowering of the filling pipe.

It is also worth noting a device for pouring liquids into tanks (USSR Author's certificate No. 664917, IPC B67D 5/04, publication 05/30/79), which is equipped with a clamp installed between the pipe and the cover with a drive, consisting of a threaded sleeve and a split insert with an outer conical surface .

However, the known device does not provide proper sealing during the creation of excess pressure with an inert gas to displace air and has a complex structure, which increases the likelihood of device failure, and also requires frequent technical revision.

Closest to the claimed invention is a device for sealing the top loading of petroleum products (Utility model patent of the Russian Federation No. 191957, IPC B65D 90/54, B65G 65/32, publication 08/28/2019), characterized in that it is made in the form of a coaxially arranged inner ring and two outer rings made with the possibility of angular movement relative to the inner ring, while the inner surface of the two outer rings coincides in shape with the hemispherical part of the outer surface of the inner ring.

However, this device does not solve the problem of sealing under conditions of strong displacement of the filling pipeline under the influence of atmospheric and hydraulic influences (wind, friction of the product against the pipeline walls, displacement by vapor pressure). Also, it should be noted that the dense shape of the device is not universal for different diameters of the necks of the filled tanks.

The technical problem to be solved by the claimed invention is to ensure complete sealing of the connection between the filling device and the neck of the tank during the filling operation.

The problem is solved by the fact that an additional detachable device for sealing the top loading of oil products, consisting of a corrugated rubber cuff with a diameter of 645 mm and two metal clamps with locks, and according to the invention, a corrugated rubber cuff, which serves as the main sealing element with the help of clamps, is fixed in two places. From above, the cuff is pressed against the sealing disk, and from below, the fastening occurs to the hoop of the neck of the tank boiler. Due to the elasticity of the cuff, it is possible to use one device for different diameters of the necks of railway tank boilers.

The essence of the invention is illustrated by the drawings shown in Fig. 1 and FIG. 2. In FIG. 1. shows a corrugated rubber cuff with two lock-type clamps (front view). In FIG. 2 shows a 3D model of the device mounted on the tank.

The corrugated rubber cuff 1, which serves as the main sealing element, is fixed in two places with the help of clamps 3. From above, the cuff is pressed against the sealing disk 5, from below, the fastening occurs to the hoop of the neck of the tank boiler 2.

Additional detachable device for sealing the top loading of petroleum products works as follows.

The corrugated rubber cuff 1, which serves as the main sealing element, is fixed in two places with the help of clamps 3. From above, the cuff is pressed against the sealing disc 5, from below it is attached to the hoop of the neck of the tank 2 boiler. After assembling and starting the loading process, there is a release of oil vapors, which, tending upwards, meet a previously created hermetic tunnel on their way, which directs the vapors along the vapor discharge pipe 6 designed on the loading device and further into the vapor recovery line.

Thus, this invention will provide a complete seal during filling operations. Due to the corrugated cuff mounted to the neck of the railway tank and to the top loading device using two metal clamps of the castle type.

Claims (1)

An additional detachable sealing device for the top filling of oil products, consisting of a corrugated rubber cuff with a diameter of 645 mm and two metal clamps with locks, characterized in that the corrugated rubber cuff, which serves as the main sealing element, is fixed in two places with the help of clamps, while the cuff is pressed against the top sealing disk, and from below is attached to the hoop of the neck of the tank boiler.

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