SU1402716A1 - Liquid-packed ring machine - Google Patents

Description

(21) 4148599 / 25-06

(22) 11/20/86

(46) 06/15/88, Bull. No. 22

(71) Leningrad Technological Institute of Pulp and Paper Industry

(72) A.P.Goflin, V.D. Ivanov, N.N.Gladyshev and R.S.Shmerkin (53) 621.516 (088.8)

(56) USSR Author's Certificate No. 1008490, cl. F 04 C 7/00, 1977.

(54) SUCTION-RING MACHINE (57) The invention relates to mechanical engineering and allows to increase the efficiency of a machine. On the shaft 2 is eccentrically located impeller with blades. The guides 8 are mounted concentrically with the housing 1 in the bezlopochatochny zone with the formation of interscapular regions 9. On the shaft 2 a multichannel pumping wheel 10 with a volute 15 is installed. Each channel 11 and area 9 with

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are united in pairs by ducts 16, and the channels of a larger radius are connected respectively to the region 9 of a larger radius. The suction cochlea 12 of the wheel 10 communicates with the liquid ring on the side of the suction port 14. The blades of the impeller are bent in the direction opposite to its rotation. The optimal number of na1

The invention relates to mechanical engineering, in particular to liquid-salt machines, and can be used in various fields of proliferation.

The aim of the invention is to increase the efficiency of liquid ring machines.

FIG. 1 shows the proposed machine, section A-A in FIG. 2; in fig. 2 shows a section BB in FIG. TO

The liquid ring machine contains casing 1, inside of which on ja-jjy 2 the workpiece is located eccentrically | its wheel 3 with blades 4, face 1 ryshki 5 with suction 6 and injection pump 7 windows in a no-void zone | It is concentric to housing 1 located on the central control 8, which form the interfacial areas 9 “On the shaft 2 of the working wheel of the 3 machine, there is a pumping machine 10 having several channels 1 1 at the exit. The number of channels 11 is equal to the number of interscapular areas 9. The suction cochlea 12 of the pumping wheel 10 communicates with the liquid to the alts 13 formed when the machine is pumped with liquid and the impeller is rotated on the suction side of the window means 14. For collecting fluid behind the pump channel 11, - ceo 10 in the design there are prefabricated snails 15 and connecting shch otoki 16. Their number is equal to the number of interscapular areas 9.

The optimal amount is two to four. Since it is difficult to provide an unaccented fluid inlet to the impeller blades around the entire circumference on the compression side, with a number of guides of more than four, with a smaller amount of direction to the cich.

two to four, since with a smaller number of guides it is difficult to provide an unaccented fluid inlet to the impeller blades around the entire circumference on the compression side, and with a number of guides more than four, the friction energy losses of the fluid against the guides . 2 Il.

The energy losses due to the friction of the fluid on the guides are significantly increased. The width and radii of the channels 11 are determined from the conditions for ensuring the necessary flow rates (speeds) of the heads (pressures) of the fluid at the outlet of the interscapular regions 9.

The machine works as follows

 О When the impeller 3 rotates, the working fluid entering the body 1 of the machine is dropped to the periphery to form a liquid ring 13. Beyond the radius of the minimum removal of the body from the axis of rotation, the working fluid enters the pumping wheel 10 through the window 14, where it is supplied with the necessary amount of energy. At the exit of the wheel 10 due to the presence of several

The 20 channels 1t and the differences of their widths and, by the radii, the total flow of the working fluid is divided into several streams having different speeds and pressures.

 using prefabricated ULITEC 15 and connecting ducts 16, the indicated different-energy flows of the working fluid enter the body 1 of the machine, and more specifically, in the interscapular regions 9,

30 outlets from which the working fluid streams are drained and enter the working vanes 4.

Claims (1)

Formula 35 Liquid ring machine, comprising a housing, face caps with suction and discharge ports, an impeller eccentrically located on the shaft with blades, directed to the body in the no-blade area with Obam 14027 The formation of interscapular regions, characterized in that, in order to increase efficiency, a multichannel pumping wheel with a cochlea is installed on the shaft, each channel of which and each interscapular region of the guides are connected in pairs through protons, and the channels of a larger ratio / 5 164 The diameter of the impeller of the impeller is connected with the liquid ring on the side of the suction window, while the blades of the impeller are bent in the direction opposite to its rotation. 6-6