SU1636023A1 - Oil separator - Google Patents

Abstract

The invention relates to compressor building, can be used to clean compressed air from oil, for example, in oil-filled screw or rotary compressors or in pneumatic lines, and allows for increased efficiency in operation. The oil separator is equipped with a diverter located

Description

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inside the filter cartridge 20 and made in the form of two cylinders 8, 11 with a space (between the cylinders) insulated from the air flow to drain the oil, and in the inner cylinder there is an auger insert 7 with decreasing pitch to the outlet and it has a screw auger inserts are longitudinal slits in which thin plates are attached, and a screw insert is mounted on a disk 4 with openings of different diameters for draining liquid and gaseous media. In addition, the inlet 2 has a knee to the entrance of the cleaned air stream

The invention relates to compressor building and can be used to clean compressed air from oil, for example, in oil-filled screw and rotary compressors or in pneumatic lines.

The purpose of the invention is to increase the efficiency of work.

On .1 shows the proposed oil separator, a longitudinal section; FIG. 2 shows a section A-A in FIG. 1 with a horizontal supply of an oil flow to the inlet of the oil separator; FIG. fig.Z - the same, with a vertical flow; in fig. 4 - section bb in figure 1; on fig.Z - section bb In figure 1; Fig. 6 shows the upper part of the oil separator (on an enlarged scale); Fig. 7 shows a section G-D in Fig. 1.

The oil separator is a collapsible structure and includes a cylindrical body. 1 with a nozzle 2 for tangential entry of polluted air, in which a profiled (flat) insert 3 is installed, the inlet part of which divides the nozzle 2 at an angle to the vertical into two parts. Immediately before insertion 3, the nozzle has a rotation (knee) of 90 ° in the horizontal or vertical plane (in FIG. 1, the vertical inlet flow to the inset is shown by a dashed line, and the horizontal inlet is shown in a continuous line). A disk 4 with holes 5 and 6 of various diameters (holes 5 in a sector in

five

into the body and provided with a profiled insert 3, an inclined flat insert 14 is located in the oil collector, as well as to prevent the oil from being carried off again in the slots of the bypass device installed tangentially to the outer (cylindrical) surface of the screw insert, with each subsequent plate blocking a possible direction movement of particles along the line passing through the center of the outer circumference of the screw insert to the point of contact of the previous plate with the inner cylindrical surface of the ear. 4 hp f-ly, 7 ill.

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several times the diameter of the holes 6 on the rest of the disk). A screw insert 7 is installed in a recess in the central part of the disk 4 with a helix pitch decreasing (to the flow outlet from it). The screw insert 7 is covered in an outer diameter by a diverter consisting of a cylinder 8 with a rim in the upper and lower parts and longitudinal windows arranged at a certain angle to the air flow to be cleaned (slots, slits) 9. in which they are fixed (for example, by welding ) thin plates 10, pointed in the direction of flow, so that in the window 9 there remains a slot for the passage of oil and cylinder 11 separated from air and with windows 12 located in its upper part. One of the options for arranging the plates 10 (as well as the windows 9) is tangential to the outer diameter (surface of the cylinder that conditionally covers it) of the screw insert 7, while the top of each subsequent plate should be behind the line connecting the point of contact of the preceding plate with the inner surface cylinder 8 and the center of the screw insert, which prevents re-entrainment of the oil separated from the flow and between the tops of the plates, oil drops when they are struck on the inner surface of the cylinder 8. The gap between the screw insert The cylinder 7 and cylinder 8 are selected to be minimal, but sufficient to accommodate the evolved oil (particles). Between cylinder 8

and a cylinder 11 forms a narrow (cylindrical) channel 13, isolated from the top of the air stream by the side of the cylinder 8, and its lower part is connected through holes 6 made in the disk 4 circumferentially to the oil collector immediately merges down into the oil pan, and the other part having a sufficiently large speed and in which a certain amount of air is contained, flows between the disk 4 and the flat insert 14 to the wall of the housing 1, the oil particles lose speed and smoothly flow down the oil in the oil sump s, and the air podninikom located at the bottom of the separator casing. Above the surface is an inclined flat insert 14, the upper part of which is at the level of the lower part of the pipe 2, and the lower part at the upper level of the oil in the oil sump during steady-state compressor operation. At the very bottom of the oil pan there is a pipe 15 for draining the oil. At the inlet of the flow to be cleaned into the screw insert 7 (between the housing 1 and the outer diameter of the screw) there is a visor 16 (in FIG. 4 it is labeled a, b, c, d) designed to prevent the separated oil from re-entering the flow. The oil separator has a clean air outlet pipe 17 and is closed from above with a lid 18 using bolted joints 19. Between the body 1 and the cylindrical insert 1 1, a filter element (cartridge) 20 can be installed (if necessary, to achieve a given high degree of air purification) , for example, of superfine synthetic fiber, bronze powder or active carbon, etc., with the element 20 enclosed between perforated cylinders 21 (has a rim 22 in the upper part), and bubbled indicia.

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control of the movement of the main flow to be cleaned, and arrows b, bt, b2 show the direction of movement of the oil.

It goes up to the disk and through the holes 5 enters the main cleaned stream. Without the use of the insert 14, the oil is bubbled into the oil 15 collection, foamed and carried away with air. The bulk of the air with oil particles after separation in the nozzle 2 enters over the insert 3 and the disk 4 into the screw insert 7,

20 where the flow is twisted at high speed and large particles of oil are thrown from it under the action of centrifugal forces into the space between the plates 10 and then separated.

25 seconds through windows 9 into channel 13 and, not

In contact with the main air flow, it flows through it through the holes 6 in the disk 4 into the oil sump. With decreasing screw helix pitch

30 of the insert 7, increasingly fine particles are separated from the stream of air through the windows 9 due to an increase in the rate of swirling of the stream. The separation of oil particles is carried out according to

5 of the entire outer part of the screw insert 7, while the separated oil in the annular gap (channel) does not come into contact with the air flow, which completely prevents repeated breakdown and entrainment

40 particles of oil, i.e. cleaning quality is improved.

After the air flow exits from the screw insert, the next 45 perforated cylinder 21 enters through the Oil separator into the filtering element (cartridge) 20, where the oil-air flow enters its final (up to the required degree of oil-filled compressor) cleaning From oil, which (not shown) into the pipe 2, at the entrance the swarm flows down through the openings 6 into the mass, which drastically changes the direction of the container 50, and the air through the pipe

the outlet of the cleaned air 17 is supplied to the pneumatic network; the filter cartridge 20 is used in case of very high demands on the quality of compressed air purification, and when used in pneumatic

movement at 90, while under the action of centrifugal forces, the bulk of the oil is pressed against the outer (with respect to the rounding of the nozzle) wall and falls under the profiled insert 3 (see Figures 2 and 3, the shaded part of the section), and then the flow the oil moves under the insert 3 into the housing 1, where some of its

lines its use is not necessary (or a set of cylinders from grids, etc.) is used.

it is immediately drained down to the oil pan, and the other part that is up to the disk and through holes 5 enters the main flow to be cleaned. Without the use of the insert 14, oil is bubbled into the oil pan, foamed and carried away with air. The bulk of the air with oil particles after separation in the nozzle 2 enters over the insert 3 and the disk 4 into the screw insert 7,

where the flow is twisted at high speed and large particles of oil are thrown from it under the action of centrifugal forces into the space between the plates 10 and then separated.

with through windows 9 into channel 13 and, not

In contact with the main air flow, it flows through it through the holes 6 in the disk 4 into the oil sump. With decreasing screw helix pitch

the inserts 7 from the air flow through the windows 9 separate increasingly fine particles due to an increase in the rate of swirling of the flow. The separation of oil particles is carried out according to

the entire outer part of the screw insert 7, while the separated oil in the annular gap (channel) does not come into contact with the air flow, which completely prevents repeated breakdown and entrainment

oil particles, i.e. cleaning quality is improved.

lines its use is not necessary (or a set of cylinders from grids, etc.) is used.

Thus, the flow to be cleaned, still in the inlet nozzle, is largely freed from oil, which then smoothly flows into the oil collector, in addition, through the use of a screw insert with variable pitch and thin plates placed around it that are installed in slots connected to an insulated annular clearance, efficient oil cleaning is provided and re-entrainment with the flow is prevented, and by placing the bypass device inside the filter cartridge, the filtration area is increased (the final cleaning) with the help of fibrous materials, which allows to reduce the hydraulic resistance, reduce the speed of the stream being cleaned passing through them, reduce the size and increase the efficiency of the oil separator. The use of a disk with openings of different diameters prevents the penetration of air jets into the channels for the discharge of oil.

Claims (5)

1. The oil separator, which includes a vertical case with a lid, a filter cartridge installed in it, nozzles for inlet of contaminated air, removal of oil and clean air outlet, an oil collector, is designed to increase the efficiency of work, it is equipped with a bypass device located coaxially inside the filter cartridge and made in the form of two cylinders with forming between them a channel for the removal of oil, a screw insert placed in the inner cylinder with decreasing along the flow 0 five 0 five 0 five 0 five with a pitch and a disk made with holes of different diameters, with the screw insert mounted on the disk, and the internal cylinder of the bypass device is made with longitudinal slits at an angle to the air flow and provided with plates fixed in them. 2. An oil separator according to claim 1, wherein the pipe for the entry of polluted air is provided with a profiled insert located at the level of a disk, the inlet part of which is angled to the vertical with the possibility of dividing the incoming stream into two parts, and the entrance of the nozzle is knee-shaped. 3. The oil separator according to claim 1, is in that it is provided with an inclined flat insert placed in the lower part of the body between the disk and the oil collector, the upper edge of which is located at the lower edge of the nozzle for the entry of polluted air, and the lower edge attached to the housing wall. i 4. The oil separator according to claim 1, wherein the holes of a smaller disc diameter are located circumferentially under the oil drain from the withdrawal device and the filter cartridge, and the openings of a larger diameter are located in the flow entry section of the ganec insert. 5. The oil separator according to claim 1, which is characterized in that, in order to prevent re-entrainment of oil, the plates of the bypass device are installed tangentially to the cylindrical surface of the screw insert and overlap each other in terms of. Fie.2 Fi.Z FIG L eleven 62 butter FIG. 6 P Fig 5 21 20 22 I / / FIG. 7 15