SU850159A1 - Horizontal separator - Google Patents

Description

54) HORIZONTAL SEPARATOR

I

The invention relates to devices for separating a liquid phase from a gas stream in industrial heat and mass transfer apparatuses and can be widely used in various industries of the national economy.

A separator is known for separating a liquid from a gas stream, including inclined parallel-mounted inclined plates, at the exit ends of which pockets are installed for collecting and draining the collected liquid 1.

The closest to the proposed technical essence and the achieved result is a horizontal separator for two-phase flows, including parallel inclined plates forming the separation channels 2.

In such separators, the critical critical speed of gas flow is caused by the termination of the drop removal of the separated liquid from the lower edges of the plates, the resulting phase inversion (the beginning of the movement of the separated moisture film on the outer side of the plates upwards in the direction of the gas flow) and the start of the secondary entrainment of moisture.

that is, the separation of the film of separated moisture from the upper plates.

Under such conditions, the accumulation of separated moisture on the lower edges of the plates stops as large droplets, capable of detaching from the edges, overcoming the kinetic energy of the incoming gas flow and returning to the liquid phase layer in the working chambers of the apparatuses. These features of horizontal louvered separators do not allow to achieve high specific loads on gas, which leads to an increase in size, complexity of the design and maintenance of the separation chambers of the process and gas cleaning equipment.

Claims (2)

In oblique and vertical louvers, separators carry out film removal of separated moisture into trays with drains, and secondary liquid entrainment occurs at higher critical flow rates than in horizontal ones, which makes it possible to increase gas specific loads by 1.5–2 times. and liquids. However, the height of such separators is greater than horizontal. The arrangement of separators in the separation chambers of the apparatus is much more complicated, they require special devices for draining the separated liquid (deep pallets with drainage tubes), which makes their installation and maintenance more complicated. The purpose of the invention is to increase the specific loads for gas and liquid and reduce the size. This goal is achieved by the fact that in the separator the plates are made with inlet and outlet vertical sections, the separator is provided with jamellae protrusions located on the outer side of the plates, facing the gas flow, and curved plates located above the output sections of the plates and 5 forming with the latter a channel for the flow of the separated liquid film onto the inner side of the inclined plates. In addition, the separator is provided with partitions arranged parallel to the inlet portions of the plates at a distance from the latter, with the upper edge of the partitions located above the upper ends of the portions of the plates. FIG. 1 shows the proposed separator, a longitudinal section; in fig. 2 is a view A of FIG. 1. The separator includes a series of parallel plates I, inlet sections 2 and outlet 3, which are located parallel to the direction of the gas flow, central working areas located at an angle oL to the gas flow. The outer (with respect to the gas flow) and inner sides of adjacent plates form separation channels 4. Parallel to the exit sections 3 are curved plates 5, the upper part 6 of which is curved and closes the output edges of the plates 1 to form channels 7. Parallel to the entrance sections 2, partitions are installed 8 forming the channels 9 with them. The upper part of the plates 8 several times overlaps the sections of the channels 4, forming a trapezoidal chute with the central working sections of the plates 1. On the outer side of the central p The working areas of the plates 1 are arranged in a staggered order, scaly protrusions AND, turned by LOWER edges against the movement of the gas flow. The device works as follows. The vertical ascending gas flow carrying suspended particles of liquid, droplets, enters the separation channels 4 where droplets are deposited on the outer surface of the plates 1 due to inertial forces. The film of the separated liquid is carried upwards along the outer side of the plates 1, experiencing the retarding effect of scaly protrusions 11. Next, the film enters the channel 7 between the exit section 3 of the plates 1 and the straight line section of the plates 5. On the curvilinear section 6 of the channel 7, the film rotates relative to the output edges of the plate 1 and the transfer of the liquid film to the inner side of the plates 1. Then the liquid film moves in a countercurrent downward along the inner side of the plates 1, while its movement occurs in the discharge zone (stagnant zone), as the gas flow, curved in the channels 4, is pressed to to the outer side of the plates 1. The flowing liquid accumulates in the groove 10, and the separated liquid creates a trap preventing its breakdown and re-entrainment into the separation channel. Due to the backwater created in the chute 10, the liquid enters the channel 9, from where it flows into the gas stream in the form of a jet and, overcoming the actual energy of the gas flow, returns to the initial liquid layer in the working chamber or gas cleaning apparatus. Thus, in the proposed construction, a jet removal of the separated liquid in a horizontal louver separator is realized, which allows to increase the critical flow rates of the gas flow and, accordingly, the specific loads for gas and liquid. This allows reducing the dimensions of the separation chambers, using the advantages of horizontal separators (low height, simple design, installation and maintenance) and without resorting to the installation of more complex inclined and vertical devices with drainage systems. Claim I. Horizontal separator for two-phase flows, including parallel inclined plates forming separation channels, characterized in that, in order to increase specific loads on gas and liquid and reduce dimensions, the plates are made with inlet and outlet vertical sections, the separator is equipped staggered on the outer side of the plates with scaly protrusions turned to meet the gas flow and curved plates located above the exit portions of the plate Astinum and forming with the latter a channel for the flow of a film of separated liquid to the inner side of inclined plates. 2. A separator according to claim 1, characterized in that it is provided with partitions arranged parallel to the inlet portions of the plates at a distance from the latter, wherein the upper edge of the partitions is located above the upper ends of the inlet portions of the plates. Sources of information taken into account in the examination 1. USSR author's certificate number 4233484, cl. On 01 D 45/08, 1972. 2. Chemical and petroleum engineering, 1968, No. 8, p. 20.