RU213936U1 - COMPRESSOR UNIT - Google Patents

Abstract

The utility model relates to the oil and gas producing and oil and gas processing industries, namely to compressor units. The compressor unit can be used for continuous gas supply to dry gas-dynamic seals in all operating modes of the gas compressor unit. The compressor unit contains a vortex compressor, a magnetic clutch, a casing, an electric motor, a shaft, a bearing housing, characterized in that it also contains a lower straightener, an inner half-coupling and a separating cup, while the clutch is cooled by the presence of channels and areas through which gas flows, and it is the gas through the channel in the lower straightener, made in the form of a vertical hole, that is fed into the horizontal channel formed by the groove in the lower straightener and the bottom cover, then through the vertical channel, made in the form of an axial hole on the shaft, it is fed into the inner region of the separating cup, then the gas is fed into the free area between the bearing housing and the top cover through the channels in the bearing housing formed by the grooves and the wall of the top cover, followed by exit through a horizontal hole in the top cover into the suction port of the compressor. The technical result is to reduce the thermal load of the magnetic coupling due to the organization of its cooling.

Description

The utility model relates to the oil and gas producing and oil and gas processing industries, namely to compressor units. The compressor unit can be used for continuous gas supply to dry gas-dynamic seals in all operating modes of the gas compressor unit.

Known booster compressor manufactured by KTR Engineering (http://ktre.ru/services/development/), which contains a vortex compressor, a magnetic clutch, a casing, an electric motor. The disadvantage of this design is the lack of cooling of the coupling during operation.

The technical problem to be solved by the claimed utility model is the development of a magnetic coupling cooling system.

This problem is solved by the fact that the compressor unit contains a vortex compressor, a magnetic clutch, a casing, an electric motor, a shaft, a bearing housing, characterized in that it also contains a lower rectifier, an inner half-coupling and a separating cup, while the clutch is cooled by the presence of channels and areas along which the gas moves, namely, the gas through the channel in the lower straightener, made in the form of a vertical hole, is fed into the horizontal channel formed by the groove in the lower straightener and the bottom cover, then through the vertical channel, made in the form of an axial hole on the shaft, it is fed into the internal the area of the separating cup, then the gas is supplied to the free area between the bearing housing and the top cover through the channels in the bearing housing, formed by grooves and the wall of the top cover, with subsequent exit through a horizontal hole in the top cover into the suction port of the compressor.

The technical result, provided by a combination of essential features of the claimed utility model, is to reduce the thermal load of the magnetic coupling due to the organization of its cooling.

The compressor unit consists of a flow part of the unit, an electric motor, a magnetic coupling with an insulating casing, mounted on a frame. The flow part of the compressor unit is an outer casing with a module installed in it. The module includes a rotor and rolling bearings in their own housings. The rotor of the flow part of the compressor unit is driven by an asynchronous three-phase squirrel-cage electric motor. The shafts are connected by a magnetic coupling with a protective screen.

The rotor of the flow part of the compressor unit operates in a gaseous medium with a working suction pressure, the drive rotor operates in an air medium. The rotors are separated by an internal protective screen of the magnetic coupling. From the outside, the coupling is closed by an outer casing, which is attached to the housings of the flow path of the compressor unit and the drive.

The location of the axes of the rotors of the flow part of the compressor unit and the drive is vertical. The drive is installed on the outer casing of the coupling, the casing is mounted on the cover of the flow path of the compressor unit.

The work of the compressor unit is to increase the pressure of the gas. After starting the compressor unit, the gas enters the flow path of the compressor unit, where it receives an energy increment from the rotation of the rotor impeller at the output.

The essence of the claimed utility model is illustrated by drawings, which show

Figure 1 is a sectional view of the coupling from the front, illustrating the movement of the sealing gas to cool the coupling;

Figure 2 is a sectional view of the coupling from behind, illustrating the movement of the sealing gas to cool the coupling;

figure 3 is an enlarged view of part view C, which illustrates the movement of the sealing gas in specific areas of the working area of the coupling;

figure 4 is an enlarged view of part view D, which illustrates the movement of the sealing gas in specific areas of the working area of the coupling.

The compressor unit contains the top 1 and bottom 2 covers, the bottom straightener 3, the shaft 4, the bearing housing 5, the inner half-coupling 6 and the separating cup 7. Figures 1 and 2 show the inlet 8 and outlet 9 of the gas. A straightener is an element designed to straighten the flow and reduce gas-dynamic losses in the flow path.

During operation of the compressor unit, the magnetic coupling heats up due to magnetic friction, thereby increasing the thermal load on the magnetic coupling. Therefore, to reduce the thermal load of the magnetic coupling, cooling is organized.

Cooling is organized by the formation of channels inside the device.

The sealing gas after compression is taken through the channel 10 in the lower straightener 3, made in the form of a vertical hole, and is fed into the horizontal channel 11, formed by a groove in the lower straightener 3 and the lower cover 2. Through the channel 11, the gas enters the free area 13 and through the vertical channel 12, made in the form of an axial hole on the shaft 4, is fed into the inner region of the separating cup 7. Further, the gas, when passing between the walls of the separating cup 7 and the inner half-coupling 6, takes heat. After cooling, the sealing gas is supplied to the free area between the bearing housing 5 and the top cover 1 through the channels in the bearing housing 5 formed by the grooves and the wall of the top cover 1. The gas from the free area through a horizontal hole in the top cover passes into the suction port of the compressor.

Thus, the claimed technical solution is aimed at reducing the thermal load of the magnetic coupling due to the organization of the cooling system.

Claims (1)

A compressor unit containing a vortex compressor, a magnetic clutch, a casing, an electric motor, a shaft, a bearing housing, characterized in that it also contains a lower straightener, an inner half-coupling and a separating cup, while the clutch is cooled by the presence of channels and areas through which gas flows, namely, the gas is fed through a channel in the lower straightener, made in the form of a vertical hole, into a horizontal channel formed by a groove in the lower straightener and the bottom cover, then through a vertical channel, made in the form of an axial hole on the shaft, it is fed into the inner region of the separating cup, then gas is supplied to the free area between the bearing housing and the top cover through channels in the bearing housing formed by grooves and the wall of the top cover, followed by exit through a horizontal hole in the top cover into the compressor suction port.

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