Device for liquid level control

FIELD: oil and gas industry.

SUBSTANCE: invention refers to automatic control systems and may be used in oil producing industry, in plants for oil and gas preparation and conversion processes. Device includes separation container 1, collector of gas-liquid mixture inlet 2, gas pipe 3, liquid pipe 4 and outlet collector 5. Connections of liquid pipe, gas pipe and outlet collector form a complex consisting of one direct trap 7 and two opposite traps 8 and 9. Liquid pipe 4 is connected to outlet collector 5 by direct trap 7 and opposite trap 9 with common elbow 10. Gas pipe 3 is connected to outlet collector 5 by the other opposite trap 8, formed by elbow of gas pipeline 12 and by elbow of liquid pipeline 11 connected to outlet collector.

EFFECT: improving operational performance, reliability, tightness of device for liquid level control and simplifying of its design.

1 dwg

 

The invention relates to automatic control systems and can be used in the oil industry, in installations for the preparation and processing of oil and gas.

A device for regulating the level of liquid containing technological capacity, a manifold for supplying gas-liquid mixture, a pipe for removing gas and liquid displacer level transmitter pneumoperitoneum, pneumatic static regulating device, the output of which is fed to the pneumatic actuator and simultaneously on the secondary measuring device, which is built unit (Isakovich RA, Popadic VE Control and automation of oil and gas. M.: Nedra, 1985, p.100. RES.).

Devices that use pneumatic control system, the requirements are higher and when it is configured to eliminate lag time between changes in the level and Executive management mechanism. To ensure the health of the buoy sensor at low temperatures it is necessary to use the means of its heating, which is associated with increased costs. The use of pneumatic secondary devices requires special training of air compression by the compressor on the water content and oil vapours. Failure to adhere to these requirements which leads to premature wear of the pneumatic system of regulation and reduce the reliability of the device.

A device for regulating the liquid level (RU # 2053537 WITH 21.07.1992, 6 G05D 9/04), including the separation tank with her placed in a float, a manifold for supplying gas-liquid mixture, a pipe for removing gas and liquid and the actuator. The device is equipped with air tanks, separated by a valve, which is connected by a rod with a float at the entrance of one of the air tanks connected via a pulse tubes and throttle with the compressor, and the output from the actuator, and the other tank is connected through an adjustable throttle with the atmosphere. A disadvantage of the known device is the presence of a mechanical system for regulating the liquid level.

The closest analogue of the claimed invention is a technical solution according to the patent US 5254292 A, B01F 3/04, 19.10.1993, from which it is known a device for controlling the level of liquid containing the separation tank, the inlet manifold gas-liquid mixture, a gas pipe, liquid pipe, the output header.

The drawback of the device according to patent US 5254292 And is within the separation tank perforated pipes, partitions, partitions, compartments, which complicates its design.

Object of the invention is improved performance, reliability, integrity and simplification to the reconstruction device for regulating the liquid level.

The task of the device for controlling the level of liquid containing the separation tank, the inlet manifold gas-liquid mixture, a gas pipe, liquid pipe, output collector, is solved according to the invention by the fact that connections liquid pipe gas pipe and outlet manifold form a complex of a direct siphon and two opposed siphons, and a liquid pipe connected to the outlet manifold by means of direct siphon and horizontal siphon having total knee and gas pipe connected with the outlet manifold through the second horizontal siphon formed by the knee of the gas pipeline and the knee fluid line connected to the output collector.

The invention is illustrated in the drawing, which shows a General diagram of the device.

A device for controlling the liquid level contains the separation tank 1, the inlet manifold 2 gas-liquid mixture, a gas pipe 3, a liquid pipe 4 and outlet manifold 5. Connections liquid pipe 4, the gas pipe 3 and outlet manifold 5 form a set of 6 from a direct siphon 7 and two opposed siphons 8 and 9, the liquid pipe 4 is connected with the output manifold 5 by means of direct siphon 7 and the opposed siphon 9, having a total knee 10. Knee 11 belongs liquid pipe 4. Gas connection pipe 3 is replaced with the output manifold 5 by means of the opposed siphon 8, formed by the knee 12 of the gas pipe 3 and the knee 11 liquid pipe 4 connected to the output collector 5.

A device for controlling the liquid level is as follows.

Gas-liquid mixture is fed to the separation tank 1 through the inlet manifold 2, where the separation of liquid and gas. At the time of filling of the separation tank 1, the liquid level rises.

The gas separation tank 1 is supplied to the output manifold 5 through the knee 12 and 11. Knee 12 belongs to the gas pipe 3, and the knee 11 - liquid pipe 4. The gas pipe 3 through the knee 12 is connected to the liquid pipe 4 through the knee 10. Knee 11 and 12 form f-siphon 8. Knee 11 and 12 connect the gas pipe 3 and outlet manifold 5. When the liquid level in the separation tank 1 exceeds the height of the direct siphon 7, the fluid from the separation tank 1 is supplied to the output manifold 5 via a direct siphon 7 and knee 10 and 11. Knee 10 is a knee only liquid pipe 4. Knee 10 and 11 forms a horizontal siphon 9.

Thus, the liquid pipe 4 is connected with the output manifold 5 by means of two siphons: direct 7 and f-9, having a total knee 10. While the knee 12 of the gas pipe 3 is connected with the liquid pipe 4 so that when the flow of fluid into the outlet manifold 5, the fluid flow covers the knee 12 is a gas pipe 3 from the output of the collector 5.

Gas-liquid mixture, continuing to flow into the separation tank 1, it creates excessive pressure at which the liquid level is lowered and the gas passes through the knee 11 and 12 are arranged siphons 8 and 9 to the output collector 5, creating the opportunity to accumulate fluid again in the separation tank 1.

The connection of the separation tank 1 with the output manifold 5 via a set of 6 of one direct and two opposed siphons creates a simple and reliable control system fluid level.

The use of the invention will improve performance, reliability, tightness of the device for controlling the liquid level and to simplify its design.

The simple design of the device, simplicity and reliability without the use of mechanical control systems will provide to the invention is of broad application.

A device for controlling the level of liquid containing the separation tank, the inlet manifold gas-liquid mixture, a gas pipe, liquid pipe, output collector, characterized in that the connection liquid pipe, gas pipe and outlet manifold form a complex of a direct siphon and two opposed siphons, and a liquid pipe connected to the outlet manifold by means of direct siphon and horizontal siphon having about is her knee, a gas pipe connected to the outlet manifold through the second horizontal siphon formed by the knee of the gas pipeline and the knee fluid line connected to the output collector.



 

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