DE7122464U - Device for separating liquid from a large gas flow - Google Patents

Description

"Device for separating liquid from a large gas flow"

The invention relates to a device for separating liquid contained in a large gas flow with coarse and fine separators housed in a container.

The fine separators commonly used today for drying steam (so-called »zigzag separators) are only allowed to use relatively little on the Average speed related to the dryer area corresponding to a back pressure of a few mm WS.

In particular in the design and design of steam dryers that are installed in the steam circuits of boiling and pressurized water reactors between high and low pressure part, there is the difficulty of arranging a large dryer area on kleir star space and making the flow paths so that a uniform distribution of Steam and water are applied to the dryer with low pressure losses. In these devices, the ratio of the dynamic pressure q_ " in the inflow lines to the dynamic pressure ς _φ upstream of the dryer is approximately

q _z / q _T = 450.

The present invention has set itself the task of creating a device with the proper liquid aas a large gas flow rate can be separated without having to accept large pressure losses. To the The solution to this problem is a device according to the invention proposed, which is characterized by aaass between the coarse separator and fine separator an annular space with at least an Ar.schlussstutzen is provided for the gas flow

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and the annular space is closed on the top and open on the bottom and in a central, closed top Channel opens out, with a deflection body closed on all sides being provided in the mouth area, the delimitation of which with the container wall and. the limitation of the coarse separator "nozzle-shaped passages that the central channel above of the annular space of flow guide and distribution elements is limited, between which nozzle-shaped passages lead to the fine separators.

In order to have a liquid separation - coarse separation - at the first deflection of the gas flow, see the invention also provides that the coarse separator consists of an annular plate and a centrally placed cone, the is held by plates arranged in a star shape in a funnel-shaped drain below it. and gaps are provided between the lower limit of the cone and the ring plate.

The first deflection of the gas flow occurs around a deflector, which, according to a further concept of the invention, is inclined with its lower limit relative to the horizontal runs. However, this preferred embodiment of the invention is only required if a one-sided inflow of the gas flow into the annulus.

Sometimes it is necessary to regulate the speed distribution of the gas stream in the central channel. In further development the invention is therefore also proposed that the unlenkkörper is displaceable in the axial direction.

Purely for the arrangement of the Peinabscheiderpakete, it can be useful to design the central channel in a special cross-section, according to a preferred embodiment of the invention, it is therefore proposed that the central channel is polygonal in cross-section, and the side of the passages to the outside attached fine separator packets assigned to each other in run in the radial direction and one with each other

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include acute angles, in whose apex they are tight issue,.

Furthermore, according to the invention, an OTter multiple particle separator system can be arranged above the annular space. Based The figures shown in the drawings are the invention is described in more detail below using an exemplary embodiment in its structure and in its puncture. Show it:

Pig, 1 in a schematic representation a longitudinal section through a device according to the invention;

FIG. 2 shows a section along the line H-II in FIG. 1.

The device according to the invention consists of a container l. _# in which a coarse separator 2 and fine separator 3 are used. With the container ϊ, ζ / · £.?. Nozzle 4 connected through which the gas narrow stream enters the container. Me nozzle 4 open into an annular space 5, which is closed on the top and open on the bottom. On the underside of the annular space 5 there is a deflecting body ·. , which is closed on all sides and aerodynamically shaped.

The coarse separator 2 consists of an annular plate 7 and a cone 8 placed centrally on it, which in turn is held by metal sheets 9 inserted in a star shape in the funnel-shaped outlet 10. The lower boundary 11 of the cone 8 is arranged at a distance from the annular plate 7, so d .a gaps are created through which the material deposited during the first deflection liquid can flow into the hopper 10 degrees.

The deflecting body 6 forms with its boundaries and the boundaries of the container 1 and the surface of the cone 8 nozzle-like or diffuser-like passages 12, 13. The diffuser-like Passage 13 opens into a central channel 14 which is closed at its upper end. The side

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Limitations of this central channel 14 above the ring area 5 are göDilüet by flow guiding and distributing elements 15, between which also uüsen-like openings lead to the fine separator packages 3. Water tanks 17 are provided below the individual fine separator packages 3.

The structure of the individual fine separator packages can be seen from the sectional drawing in FIG. The central channel 14 is preferably of polygonal design above the annular space 5. The fine separator packets 3 are arranged to the side of the passages 16 and, as already mentioned at the beginning, enclose an acute angle with one another in the radial direction. In the area of the apex of the angle, the fine separator packages lie close to one another. The space 18 enclosed on the inflow side by the fine separator packs 3 is closed at the top with a plate (not shown) = the free space? 1Q _; which is also enclosed by two fine separator packages 3, on the other hand, is open at the top.

The function of the device according to the invention is described below. The bulk flow flows through the nozzle 4 into the annular space 5. There it is down around the deflector and then up into the central channel diverted. Those in the Oasmerren Current, which is initially directed downwards The liquid droplets contained are accelerated on their way down and thrown against the container wall 1. The steam flow now drives the individual liquid droplets Via the ring plate 7 and the gap 20 into the funnel-shaped outlet 10. The part of the liquid The freed gas flow is deflected by the deflecting body 6 ir. the central channel 14. The flow occurs initially in particular in the area of the annular space 5 vertically upwards and is then on its further way up through the limitation of the channel 14 forming flow guiding and distributing elements diverted and filled into the individual fine separator packages.

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The gas flow emerges horizontally from the dune-shaped Slots 16 and, after a sharp deflection, flows into the fine separator packs 3. As a result of the sharp deflection There are differences in speed caused by the confluence of different jets emerging from the slits arise, does not affect the flow through the Peinabscheider. The gas stream flows from the fine separators into the free spaces 19 and is derived from these upwards. Through special measures, such as the installation of displacement bodies in the free spaces 19 or from perforated sheets on the downstream side of the fine separator ensures that the Fine separators are flowed through evenly over their height,

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Claims (1)

c 9.6.1971 J " ^b " ■ Pa 7Π1 Gm 7109 Kl / Er Protection claims 1 · Device for separating in a large gas flow contained liquid with coarse and fine separator housed in a container, thereby characterized in that between the coarse separator (2) and the fine separator (3) an annular space (5) with at least a connection piece (4) is provided for the gas flow and the annular space (5) is closed on the top side and is open on the underside and opens into a central channel (14) closed on the upper side, a deflection body (6) closed on all sides being provided in the area of the mouth is, whose boundary with the container wall (1) and the boundary of the coarse separator (2) nozzle-like or diffuser-like Passages (12,13) forms that the central channel (14) above the annular space (5) of flow guide and distribution elements (15), between which nozzle-shaped passages (16) to the fine separators (3) to lead. 2 "Device according to claim 1, characterized that the coarse separator (2) consists of an annular plate (7) and a centrally placed cone (8) consists, der. durch star-shaped arranged plates (9) in a funnel-shaped adjoining beneath the same Drain (10) is held and between the lower limit (11) of the cone (8.) and the ring plate (7) Column (20) are provided. 3. Device according to claims 1 and 2, characterized in that the lower limit of the deflecting body (6) is inclined relative to the horizontal. 7122A6428.10.71 4. Device according to claims 1-3, characterized in that the deflecting body (6) is axially displaceable. 5. Device according to claims 1-4, characterized in that the central channel (1Λ) is polygonal in cross-section and the laterally of the passages (16) attached to the outside are assigned to one another Pein separator packets (3) enclose a pointed 7 / inch («£) in the radial direction and at the top fit tightly. 6. Device according to claims 1-5, characterized in that above the ring » room (5) one or more fine separator systems (3) are arranged. 712246428.10.71