DE1236121B - Separator for liquid and solid foreign matter from compressed air - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY Int CL:

F04b

GERMAN

PATENT OFFICE

EDITORIAL

F 17 b
German KL: 27 b -15/02

Number: 1236121

File number: L 426751 c / 27 b

Registration date: August 9, 1962

Opened on: March 9, 1967

The invention relates to a separator for liquid and solid foreign matter from compressed air with a housing, to which an inlet and outlet having a head piece is connected and with the a frustoconical hood which partially covers a filter protruding into the housing, and a the filter are connected to the bottom baffle plate. Such separators are found in particular in the case of compressed air-driven devices, e.g. B. pneumatic cylinders and paint spraying systems, application, they clean the supplied compressed air from oil and dirt and separate water. With a well-known Separator, a distributor disc is provided on which the supplied air flow impinges. The disc has shovel or trough-shaped depressions or inclined lobes, so that the a swirl movement is given to the air flowing through it. Through this movement, the oil and Separate water droplets, precipitate on the inside wall of the housing and into a sump space flow, which is emptied from time to time. The air flows past a hood and reaches one Deflection by 180 ° to a filter made of porous sintered bronze in which dirt particles be held back. All of the air that gets into the sump swirls that which has already been separated out there Liquid reappears and, since access to the filter is unimpeded, water droplets tear with which the filter cannot hold back (U.S. Patent 2,692,655). With another well-known Execution, a baffle plate is provided in addition to a hood at the lower end of the filter, but since the outer surface of the hood and the surface of the baffle plate are kept smooth, this again results insufficient fluid excretion (U.S. Patent 2942 691).

The invention is based on the object of creating a separator which, despite its simple construction has a good efficiency with a small overall volume, so that as large a part as possible the liquid droplets contained in the air as well as dirt and oil are eliminated in the device will.

To achieve this object, the invention provides that several helical guide bars, known per se, extending up to the inner wall of the housing are arranged on the outside of the hood, the end of one guide bar being connected to the beginning of the next guide bar above it by an approximately radial baffle wall, and that the baffle plate, which extends approximately to the inside wall of the housing, on the filter side has several through we'ndel separators for liquid and solid foreign matter
from compressed air

Applicant:

J. Lorch Society & Co. K. G.,

Waidenbuch (Württ), Bahnhofstr. 22nd

Named as inventor:

Erhard Leger, Waidenbuch (Württ.);
Adolf Schöllkopf, Stuttgart-Sonneberg

shaped paragraphs has separate, outwardly inclined helical surfaces, the beginning of which is opposite to the Clockwise before the end of the adjacent surface. Through the interruptions due to the approximately vertical baffle walls in the continuous course of the path, the excretion the admixtures conveyed in the compressed air flow. The impact on the webs, the local increase in speed, the friction on the walls, the centrifugal force triggered by the swirl component and the impact on the inside wall of the housing are related to the safe discharge possible droplets from the baffle plate are the decisive factors for good efficiency. Advantageously, the passages widen between the end face of the baffle walls and the inner wall of the housing towards the end of the guide bar, so the outer edge of the baffle wall runs obliquely.

The air flows through these relatively small passages at increased speed Inner wall of the housing, so that the suction from the filter does not prevent the air from reaching the wall can.

An exemplary embodiment of the invention is shown in the drawing and will be described in more detail below described. It shows

1 shows a longitudinal section through a separator, FIG. 2 shows a view of a hood,

F i g. 3 a plan view of this,

F i g. 4 a view of a baffle plate, partially in section,

709 518/109

Claims (1)

3 4 Fig. 5 is a section through the baffle plate according to the baffle plate 11 is directed parallel. The amount of the the line V-V in Figure 4. upper cone section30 is about half Herein 1 denotes a z. B. made of plastic at the height of the lower cone section 33.
U-shaped housing with a U-shaped cross-section. B. compressed air, drain valve 2 flows for the contents of the sump space 3, in the direction of arrow 34 through the inflow 6 into which, in particular, water is used. Through a head piece 5 and first enters the sealing ring 4, a head piece 5 annular space 22 is airtight with it 7 are located. The axes of io forming a line and the increase in the flow rate, the inflow and outflow are perpendicular to the axis of the droplet size of the water and oil contained Housing 1, in which a screw bolt 8 in the head is increased. Now the air flow hits the piece 5 is screwed in. Centered on the head piece 5 guide webs 15, which deflect it and into which a hood 9 is guided through which a z. B. from sintered and the housing inner wall 13 channels formed bronze, ceramic or plastic existing filter 15 lead. When passing through these channels 10 rebounds partially surrounds. One on the screw bolts 8 a part of the flow against the baffle walls 20, around screwed baffle plate 11 closes the sump then through the passages 21 down into the space 3 upwards and at the same time tensions the inside of the housing to flow off. The hood 9 and the filter 10 move against the head piece 5. The air flow spirals off the housing inner wall 13 will steadily decrease. According to the greatest extent, it is provided with an outwardly pointing arrow 35 past the baffle plate 11 into the sump collar 12. The collar 12 leaves the housing space, in which the last inner wall of impurities 13 finally free an annular gap 14 which will turn out to be that which is not already measured on impact that the maximum inflowing air 25 on the tab 23, the Guide webs 15, the baffle walls quantity with a limited, not too large losses 20 or the housing inner wall 13 or through the causing speed flowing through friction on the walls have been eliminated. On the circumference of the hood 9, the swirl distribution achieved through the arrangement of the guide bars 15 and the inner wall 13 of the housing is arranged with the air accelerated on the circumference of the hood 9 from the bottom 16 to the passages 21 Safety at the opening 17 in the form of a multi-thread Ge of the housing inner wall 13, turbulence winds run. Since the outer circumference of the guide webs 15 in the space between the inner wall of the housing must be cylindrical in the projection, around 13 and the filter 10 can not occur anywhere, so that the same distance from the inner wall 13 of the housing, the admixtures in the air can easily have or. to lie against this, the webs 35 are deposited and not torn through by the filter 10 Mn-15 at the starting point 18 in the vicinity of the bottom 16. From the sump space 3, the air again passes the baffle plate 11 and 17 wider than at the end point 19 in the vicinity of the opening As indicated by arrow 37, it then emerges from the starting point 18 of a guide bar 15, its largest 40 in a cleaned state without moisture droplets, and exiting at the outlet 7 at the end point 19. Any separated oil and the underlying guide web 15 narrower than water droplets that are on the top 24 of the impactor or have even fallen from the outer surface of the hood plate 11 will emanate from the air flow. The helical surfaces 24 are carried to the outside by the inclined baffle walls 20 so that there are passages 21 to the inner wall 13 of the housing, which they also flow freely down the inner wall 13 of the housing and into the sump chamber 3. Surrender. The guide webs 15 are therefore connected to one another via the special baffle due to the double cone formation of the walls 20 and form a baffle plate 11, the separated droplet-closed ring. In the head piece 5, a small ring is not let over the upper, outwardly clear space 22, into which a conical section 30 extending to the filter 10 and the baffle 20 on the hood 9 is attached, for example into the outlet 7 be worn. From time to radially extending and over the bottom 16 of the time, the accumulated excretions from hood 9 protruding rags 23 are partially drained in through the drain valve 2,
protrudes. The baffle plate 11 is in the exemplary embodiment as 55 claims:
Double cone formed. On the top are of the smallest diameter, i.e. here from the 1st separator for liquid and solid foreign matter starting from the constriction 25, in a helical manner, material from compressed air with a housing to which running paragraphs 26 arranged, the outermost one having an inlet and an outlet Edge 27 of the baffle plate 11 ends. Connected between the 60 head piece, and with the one Paragraphs 26 are outwardly inclined frustoconical hood, which is a Helical surfaces 24. The beginning 28 of a filter protruding from the housing is partially covered, and one Paragraph 26 in the direction of the opening baffle plate closing the filter downward Spiral, i.e. seen here counterclockwise, are connected, characterized in that before the end 29 of an adjacent paragraph 26 a. 65 that several known helical, up to In the upwardly widening cone section 30 to the housing inner wall (13) reaching guide webs of the double cone another shoulder 31 is arranged (15) on the outside of the hood (9) works, the plane of which is to the end faces 32 of the net, the end (19) of a guide