RU2489195C1 - Oil-and-moisture separator - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to separation of disperse particles and may be used in oil, gas, chemical industries, etc. Proposed separator comprises vertical cylindrical housing with upper and lower bottoms, inlet pipe, outlet pipe and drain pipe and horizontal baffle with openings. Inlet pipe is located inside the housing, above said baffle. Outlet pipe is located at upper bottom and furnished with tube, tube lower part being arranged below said baffle. At least, some openings are provided with deflector plates secured to one side of said openings and flexed downward in gas-fluid mix flow direction. Tube lower part is closed by cover. Tube lateral side under said baffle has openings. Perforated piston with spring to contract coalescing material arranged between piston and cover is fitted inside the tube.

EFFECT: stable performances, no servicing is required.

5 cl, 2 dwg

Description

Technical field

The claimed invention relates to the field of separation of dispersed particles from gases and can be used in engineering, oil, gas, chemical and other industries. In particular, the invention can be used in compressor engineering.

State of the art

A device for separating liquid from a gas is known, comprising a vertical cylindrical body divided by a conical baffle into an inertial separator with a tangential inlet pipe located in its lower part and a filter element made of porous material enclosed between two coaxially mounted cylindrical shells, the outer of which is partially provided with perforation and has a conical bottom with a nozzle for draining the liquid installed in the bottom of the inertial separator, and the inner shell is made n rforirovannoy and is connected with an outlet. The lower part of the inner shell is provided with perforation and an annular cavity formed by two conical walls, the upper of which is perforated. The perforation holes have a flange directed towards the porous filter material. The bottom wall is solid and forms a gap with a conical bottom of the outer shell. Perforation of the outer shell is made in its upper part and is equipped with a blade twist (Certificate of the Russian Federation for utility model No. 8276, IPC 6 B01D 45/06, B04C 5/12, 1998 [1]).

Common features with the claimed moisture separator are a vertical cylindrical body with a nozzle for draining the liquid installed in the bottom, a filter element of a porous material enclosed in a shell partially equipped with perforation.

A filter separator is also known, comprising a vertical casing with a gas-liquid mixture inlet pipe and gas and liquid outlet pipes, a distribution tube set opposite the gas-liquid mixture inlet pipe, mounted above the gas-liquid mixture inlet pipe, to which a distribution pipe box is connected with a filter device. The filtering device comprises at least one filtering element made of at least two layers of fibrous-porous material, providing processes for coarse and fine gas purification. A swirler is installed between the housing and the tubular duct, made of curved blades of a given profile located at equal intervals around the circumference, which ensure equalization of the velocity field and effective swirling of the gas-liquid flow (RF Patent for Utility Model No. 70813, IPC B01D 45/12 (2006.01), 2008 [ 2]). Common signs with the claimed moisture separator are:

- a vertical housing with a nozzle for the entrance of the gas-liquid mixture and nozzles for the exit of gas and liquid,

- a horizontal partition fixed inside the housing, to which a distribution tube box is attached with a filter device installed in it,

- a swirler located in the housing, made of curved blades of a predetermined profile located around the circumference, ensuring equalization of the velocity field and effective swirling of the gas-liquid flow.

The disadvantage of these devices [1, 2] is significant hydraulic resistance.

Known dehumidifier with a housing, a distribution chamber, equipped with an inlet pipe, an outlet pipe, a fluid outlet pipe, a sectional chamber with tangential slots, a filter cartridge mounted at the discharge pipe and filled with a moisture absorbing agent. In this case, the filter cartridge contains a filter that holds a moisture-absorbing agent (Description of the invention to the AS of the USSR No. 865338, IPC B01D 45/00, 1981 [3]).

Common signs with the claimed moisture separator are a housing containing:

- a distribution chamber equipped with an inlet pipe,

- sectional chamber with tangential slots,

- filled cylinder

- outlet pipe.

The disadvantage of this device [3] is the use of a lower filter to trap the bulk of the liquid and mechanical impurities, the rapid clogging of which leads to the need for frequent maintenance of the moisture separator and reduces performance.

The specified dehumidifier is the combination of essential features the closest device of the same purpose to the claimed moisture separator. Therefore, it is adopted as a prototype of the inventive desiccant.

Disclosure of invention

The technical result provided by the claimed invention is to ensure the stability of the characteristics of the oil separator and to ensure the absence of the need for maintenance of the oil separator.

The essence of the invention lies in the fact that the moisture separator comprises a vertical cylindrical body with upper and lower bottoms, an inlet, outlet, drain pipe, and a horizontal partition with windows. Moreover, the inlet pipe is placed in the housing above the partition, and the outlet pipe is located in the upper bottom and is equipped with a pipe, the lower part of which is located below the partition. At the same time, at least part of the windows is equipped with deflector plates fixed to one of the sides of the windows and bent downwards in the direction of the gas-liquid mixture. In this case, the lower part of the pipe is closed by a cover, the side of the pipe below the partition is provided with holes, and a perforated piston with a spring is installed inside the pipe, compressing the coalescing material placed between the piston and the cover.

The inlet pipe is preferably installed tangentially in the housing. The housing is preferably made of stainless steel.

It is advisable to provide a deflector plate for each window. In this case, the windows can be made in the shape of a quadrangle, and each deflector plate is fixed on the side of the corresponding window closest to the inlet along the gas-liquid flow.

The coalescing material can be made in the form of a nylon line.

Brief Description of the Drawings

Figure 1 shows a diagram of the inventive moisture separator, a longitudinal section, figure 2 is a transverse section aa of figure 1.

The best embodiment of the invention

The moisture-oil separator contains a vertical cylindrical body 1 made of stainless steel, upper 2 and lower 3 bottoms, inlet 4, outlet 5 and drain 6 nozzles.

The inlet pipe 4 is placed tangentially in the upper part of the housing 1. The outlet pipe 5 is located in the central part of the upper bottom 2. A drain pipe 6 is placed in the lower bottom 3.

The internal space of the housing 1 is divided by a horizontal partition 7 into the inlet chamber 8 and the separation chamber 9. In this case, the inlet pipe 4 is placed in the housing 1 above the partition 7. The partition 7 near the inner wall of the housing 1 is provided with quadrangular windows 10 with deflector plates 11, bent downward gas-liquid mixture movements. Each deflector plate 11 is fixed to the partition 7 on one side of the corresponding window 10 closest to the inlet 4 in the direction of gas-liquid flow. The windows 10 of the partition 7 and the deflectors 11 are designed to set the high speed of the vortex motion of the gas-liquid mixture in the separation chamber 9.

The lower part of the housing 1 is designed to collect liquid and solid impurities separated from the gas. On the outer lower part of the housing 1, supports 12 are mounted for mounting the moisture separator.

At the outlet pipe 5 to a height exceeding the height of the inlet chamber 8, a pipe 13 is installed, the lower part of which is closed by a cover 14. The walls of the pipe 13 below the partition 7 are provided with holes. In the upper part of the pipe 13 there is a perforated piston 15 with a spring 16. In the inner space of the pipe 13 between the cap 14 and the piston 15 a coalescing material 17 is clamped, for example a nylon line. The coalescing material 17 is under pressure from the spring 16 on the piston 15.

Work description

The gas-liquid stream to be cleaned is supplied to the moisture separator through the inlet pipe 4. Due to the tangential location of the inlet pipe 4, the windows 10 and the deflector plates 7, the stream acquires a vortex direction of movement at the entrance to the separation chamber 9.

Most of the liquid and mechanical impurities are discarded by centrifugal force on the walls of the housing 1 of the oil separator and under the influence of gravitational forces move along this wall in a downward spiral in the direction of rotation of the gas stream. Mentioned liquid and mechanical impurities accumulate in the lower part of the oil separator and are removed from it through the drain pipe 6.

The purified gas enters the holes of the pipe 13, passes through the coalescing material 17 and through the perforation of the piston 15 enters the outlet pipe 5.

The coalescing material 17 traps the remaining smaller liquid particles from the gas, which, coarsening, flow down to the cover 14, and then through the openings in the pipe 13 to the lower part of the moisture separator. The spring 16 constantly compresses the coalescing material 17 with the piston 15. This automatically provides the necessary density of the coalescing material 17, which improves the quality of separation. In combination with a pulsating gas flow, this leads to an intensification of the flow of liquid in the coalescing material 17 into the lower part of the pipe 13.

Thus, from the foregoing, it follows that in the claimed invention the claimed technical result: “ensuring the stability of characteristics and ensuring the absence of the need for maintenance” is achieved due to the fact that the oil and water separator contains a vertical cylindrical body with upper and lower bottoms, a horizontal partition with windows. At least part of the windows is equipped with deflector plates fixed on one of the sides of the windows and bent downward in the direction of the gas-liquid mixture. The inlet pipe is placed in the housing above the partition, and the outlet pipe is located in the upper bottom and is equipped with a pipe, the lower part of which is located below the partition and is closed by a lid. The side of the pipe below the partition is provided with holes. A perforated piston with a spring is installed inside the pipe, which compresses the coalescing material placed between the piston and the cover.

Industrial applicability

The authors made a prototype of the claimed moisture separator, the tests of which confirmed the achievement of the technical result.

The claimed invention is implemented using industrially produced materials, can be manufactured at a machine-building enterprise and will find wide application in industry.

INFORMATION SOURCES

1. Certificate of the Russian Federation for utility model No. 8276, IPC 6 B01D 45/06, B04C 5/12, 1998.

2. RF patent for utility model No. 70813, IPC B01D 45/12 (2006.01), 2008.

3. Description of the invention to ed. USSR No. 865338, IPC B01D 45/00, 1981.

Claims (5)

1. A moisture-oil separator comprising a vertical cylindrical body with upper and lower bottoms, an inlet, outlet, drain pipe, a horizontal partition with windows, the inlet pipe being placed in the housing above the partition, and the outlet pipe is placed in the upper bottom and provided with a pipe, the lower part of which is placed below the partition, characterized in that at least part of the windows are equipped with deflector plates mounted on one of the sides of the windows and bent downwards in the direction of the gas-liquid mixture, while the lower Part of the pipe closed with a lid, the side of the tube below the partition is provided with openings, and inside the tube is mounted with perforated piston spring compressive coalescing material disposed between the piston and the cover. 2. The moisture and oil separator according to claim 1, characterized in that the inlet pipe is installed tangentially in the housing. 3. The moisture and oil separator according to claim 1, characterized in that the housing is made of stainless steel. 4. The moisture and oil separator according to claim 1, characterized in that each window is provided with a deflector plate, wherein the windows are in the shape of a quadrangle and each deflector plate is fixed to the side of the corresponding window closest to the inlet in the direction of gas-liquid flow. 5. Moisture separator according to claim 1, characterized in that the coalescing material is made in the form of a nylon line.

Images