SU996842A2 - Apparatus for preventing scale formation - Google Patents

Description

(54) DEVICE TO PREVENT SCALE EDUCATION

-ABOUT

This invention relates to heat engineering.

According to the main author. St. No. 480898, a device in which the prevention of scale formation occurs due to elastic vibrations transmitted by the waveguide npw to the surface to be cleaned, which occur when a ring treadmill 1 is rolled around by a ball, is known.

The disadvantage of such a device is that the oscillations excited in the holder have a continuously varying spectrum both in frequency and in amplitude. These oscillations are transmitted through the waveguide to the metal construction of the heat-exchanging apparatus, as a result of which the growth rate of the deposits is significantly reduced. However, it is difficult to provide a non-scale operation when using a known device, since the amplitude of the excited oscillations changes smoothly. This is due to the fact that the amplitude of oscillations depends on the magnitude of the centrifugal force that occurs when the ball moves at high speed, and it, as is known, is directed along the radius. The direction of action of the centrifugal force varies according to the circular j-law (Fig. 1). The aim of the invention is to increase the working efficiency by obtaining impulsive directional oscillations.

This goal is achieved by the fact that the device has vibration walls installed in the cage in the places of its connection with the waveguide.

This technical solution allows

10 to obtain in the cage pulsed (shock) mechanical oscillations of the directed Action, which are then transmitted through the waveguide to the working surfaces of the heating of the heat exchange equipment (Fig. 2).

15

FIG. 3 schematically shows the proposed device, side view; in fig. 4 - the same, top view.

Claims (1)

The device consists of a yoke 1, two vibration insulating partitions 2, dividing the yoke into two parts, flanges with openings 3, covering the yoke on both sides and fastened between each other by a nozzle 4 having a duct of compressed air supply at. 39% of the aid of the curved nozzles sunk into it in the radial section of the Venus. 5, .. Compressed air. It is fed directly to the ball 6 and drives # 0 in motion along the ring running road of the holder 1, which leads to the excitation in the holder of elastic mechanical oscillations, which are transmitted from the holder to the fastened 7 with the help of a knife waveguide 8 attached to it. fixed prt pomoio washer 9 n nuts 10. The device works as follows. A squeeze pressure of 5 atm is supplied through the channel to the nozzle 4 through the nozzles S and sets the ball 6 in motion with; increasing speed along the track cage 1. The nozzles 5 are curved in such a way as to ensure maximum pressure on the surface of the ball 6 ,. as a result, its speed is commensurate with the speed of movement of the outgoing air flow. Composing the m / s shank. , emerge pulsed (shock) vibrated, having a directional effect. The oscillations created by the centrifugal forces in the rest of the yoke are canceled in the vibration isolation partitions. The pulsed oscillating directional effect is actually transmitted to the surface of 7 n, which increases the efficiency of the device operation by shaking the crystals of the scaling salts from the inner side of the heating surface. The frequency n of the amplitude of the pulsed oscillatory directional can actually be controlled by the speed of the ball and its mass. Claims of the invention A device for preventing the formation of icipi on aut. St. N 480898, characterized in that, in order to increase the working efficiency by obtaining impulse oscillations of directional action, it has vibration walls installed in the cage at the points of its connection with the waveguide. Sources of information taken for review during examination 1. USSR author's certificate N 480898, cl. F 28 G 7/00, 1973. Fy