SU63338A1 - Inside the drum steam separator - Google Patents

Description

Intra-drum steam separators are already known, using curvilinear tubes for heating steam and separating water by means of centrifugal force, equipped with a system of contact surfaces through which the bulk of the moisture entrained by the branched steam outlet is removed.

The steam analyzer, according to the invention, is a further improvement of these well-known steam drum steam generators and is distinguished from them by the following features.

Its contact surface systems are located in horizontal cylindrical drums, in & circle of which there are channels for the passage of the main stream of steam to be separated.

The channel for directing the main steam flow is surrounded by a perforated sheet to remove through it, due to the centrifugal effect, a sufficient amount of moisture along with the second branched steam flow. To separate this vapor from the water it captured, additional separation devices were made, made in Eide, a system of plain, vertically disposed sheets. For the purpose of directing steam through a system of contact surfaces of horizontal cylindrical drums, inside the latter, there are guides of drop-shaped cross section.

To even out the steam supply along the length of the separator, choke diaphragms are used that are located in the steam separator input windows.

In FIG. 1 shows a cross-section of the internal drum separator as applied to its installation in the drum of an opaque boiler; FIG. 2 is a horizontal section of it.

The OcHOKHoii part of the separator is a body consisting of two symmetrical halves, assembled from sheets 23 and 26 folded in simplest curvature, two flat sheets 16 of the middle vertically wall, fastened with squares 15 with the upper sheets 12 of the body.

The hull halves are connected with bolts through these vertical sheets.

Between the bent sheets there are transverse partitions 52, npii (or primitive) to

inner sheets and serving both to support the outer sheets and to prevent harmful longitudinal steam currents.

The sheets 23 are attached by means of kerchiefs and squares, steel spacer plates 20, fastened with opposite edges to the vertical wall. Removable thin steel sheets 19, which do not reach the vertical wall and form the bottom windows 17 for the passage of branched (bypassed) steam into the central collecting duct 11 of the dried steam, are superimposed on these strips from below.

A square 33 is attached to the outer sheet of each half of the body from below. It serves to increase the rigidity of the structure of the outer walls of the case, as well as to create a tight connection of the latter with a removable bottom. The latter is made of two halves 29 and 30, attached to the body by clamping bolts and lambs 28. Half of the bottom are very. rigid structure in both longitudinal (along the 6apa6aQia axis) and transverse directions. Stiffness is provided with squares 31 n welded ribs 51. Each half of the bottom is made up of 3-4 parts,: bolted.

In sheets 23 and 26, windows 24 are cut through, the far edges of which are folded inwards along the course of the steam. The size of the prints gradually increases from zero to the maximum value at the point where the steam leaves the channel.

Additional reinforcements are attached to the sheets 23

plankn 37, and drainage pipes 36 are welded to the latter.

In the housing there is an upper contact surface designed for draining shunt vapor flows.

Each section consists of a glass 45, which is a thin-walled pipe with a welded tailgate 46 and a removable lid 47. A slot 22 is made in the wall of the cup for the entire LENGTH} - the glass, which is a window for

a shunted pair, into which the pointed end 32 of the core 55 is passed, attached by a series of bolts with blind thighs 13 to one of the walls of the body.

A system of a co-tact surface, made as follows, is inserted into the glass. A drop-shaped core 55 bent from thin sheet steel is put on a series of fixed plates 58, provided with a middle cut corresponding to the core, and a bottom cut in the shape of a segment. Plates are stamped from tape / steel.

To these plates (except the extreme ones) there are attached on both sides embossed from a metal mesh (made of thick wire) 56 n circles to one side — distance rods 43, also from wire, bound to the wire wires.

A core partitioned into segments of the same length with glasses, I1 has along the top of a row; holes 25 for collecting water.

In the middle part, two thicker round contact plates 59 with segmental notches on the bottom are welded to the core, connected into one whole with the help of side slopes of the 35 strips 35. The cores are fitted with a large hole 21 in the lower part located between the above-mentioned thickened contact plates 59.

A circular hole 34 is drilled in the side wall of each glass to drain the separated water, which is opposite the gap between the thickened plates and against the opening of the drainage pipe.

A series of stamped contact plates 54 is inserted into the core to eliminate the longitudinal currents of steam and improve the flow conditions of the extracted water. These plates are bolted with a bolt 14 with a distance between the washers and between them.

Each section of the core is closed on both sides H1 stamped with protrusions 53 with covers 57,

resting, in turn, on the bottom and the lid of the corresponding glass.

The teeth are riveted to the lower edge of the sheet 26: e pockets 49, the outlet openings of which fall under protective cover 42, reinforced on each half of the removable bottom.

The volume IB of the lower part of the glass, which serves to collect and remove the separated water, is separated from the upper part with a contact surface located in it of a pair of perforated sheets 41.

The bottom contact surface is made of stamped corrugated plates 50, assembled in packages using fastening bolts and distance washers in the form of truncated cones.

Packages are placed in the bottom half between the ribs.

During revisions, repairs and all work inside the drum, the separator, due to its small size, is not subject to removal. The drainage pipes and, in special cases, the drainage trough are separated.

In order to provide greater convenience in the manufacture of urgent repairs and cleaning of pipes in marine boilers, the bottom can be removed from the bottom of the coaxial surface, which increases the amount of free volume along the height of the drum.

The separator is pulled to the top of the drum by means of hinged bolts 38, angles 7, attached to the wall of the drum, and angles 40 attached to the sides of the separator body and fitted with slots.

Drainage from the upper contact surface system is brought to the water volume of the upper drum, and from the lower one to the lower drum.

The work of the steam separator is as follows.

Moist naipa flows into inlet ports 27, some of which are supplied with diaphragms 39.

At the first turn of the main channel A, on the voguta part of its walls is released from the steam, due to the centrifugal effect, a significant part of the coarse dispersed

moisture, which, together with the shunting steam flowing through it, passes through the windows 24 into the channel B, where water from the steam on the plates and grids of the upper contact surface separates the water that flows into the lower part of the cups, separated from the perforated sheets 41.

Drained bypass steam through outlet port 22 passes into the central channel of the drained steam, connected to the main streams.

At the second turn of the main channel, a similar process occurs; shunted steam with separating water flows into channel D, and from here into channel D, where the remaining moisture is separated on the undulating sheets of the lower contact surface.

The narrow channel B serves to trap water next to the outer surface of the separator body with large casts (or flooding the latter with water while the vessel is rolling), which facilitates the operation of the main channels.

A portion of the water ET011 fills the droplet-shaped cavities 10, which are a small reserve container of water, which the float gradually flows through the openings into the channel A.

On gear pockets there is a first separation of streams of water and steam. The final separation occurs on the lower contact surface.

Subject invention

Claims (4)

1. Intra-drum steam separator with curvilinear channels for directing steam and water separation due to centrifugal force, equipped with a system of contact surfaces, through which the bulk of moisture absorbed by the branched steam flow is removed, and then that the systems of contact surfaces are placed in horizontal cylindrical drums around which the channels for the passage of the main stream of steam to be separated are located. 2. The shape of the steam separator according to claim 1 is different, and with the fact that the channel for directing the main flow of a nara is surrounded by a perforated sheet to remove through it, due to the centrifugal effect, an additional amount of moisture along with the second branched flow pa; what kind of steam, for the water grabbed by it, were used additional -separation devices made in the form of a system of undulating, vertically arranged sheets. 3. The form of the steam separator according to claim 1, characterized in that, in order to direct the steam through a system of contact surfaces of horizontal cylindrical KHix drums, inside the latter there are guide inserts of a drop-like section. 4. The form of the steam-separator under item 1, characterized in that, in order to equalize the flow of steam to the length of the separator, choke diaphragms are used that are located in the windows of the steam separator. -0 --OS CO SO SO SO -11 . W CJ  with; about b and t: s CQ .About - j CL O b co sz bi B})) v)} 7W)