SU1541151A1 - Reservoir for storage of fluid - Google Patents

Abstract

The invention relates to equipment tanks, providing drainage of liquid, and can be used in the chemical and fuel industry. The goal is to reduce the discharge time. The invention provides effective prevention of funnel formation when draining liquid from a reservoir. The device for damping the funnel is made in the form of a washer-float (W), on the bottom surface of which the radial plates are vertically fixed. W is mounted with the possibility of reciprocating movement on a vertical guide rod, the lower end of which is located in the zone of the drain pipe. 1 hp f-ly, 2 ill.

Description

The invention relates to equipment tanks, providing drainage of liquid, and can be used in the chemical and fuel industry.

The purpose of the invention is to reduce the discharge time by eliminating the possibility of a vapor phase breakthrough into the drain connection.

Equipping the tank with a float device to extinguish the funnel, made in the type of washers with radial plates and mounted on a vertical guide rod with the possibility of reciprocating movement, allows you to effectively escape from the funnel before the drain pipe and thereby increase the rate of discharge of fluid from the tank

FIG. 1 shows a reservoir, a general view in section; in fig. 2 - the same, with a lateral arrangement of the drain pipe.

The storage tank for liquid consists of a tank 1 with a liquid 2 and

drain 3 branch pipes. Inside the tank f / J there is a funnel quenching device, consisting of a float made in the form of a washer 4. On the bottom surface of the washer 4 vertically fixed radial plates 5. And in the central hole of the washer 4 it can be installed bushing 6. Float 5GH the possibility of reciprocating translational movement on a vertical rod 7 f intended to limit the horizontal neper space of the float. The lower end portion of the rod 7 is installed in the zone of the drain pipe 3.

There may be cases when the drain pipe 3 is placed horizontally in the side wall of the tank 1, and (preferred) when the drain pipe 3 is located directly below the lower end section of the vertical guide rod 7. In this case, in the case of coaxial arrangement of the rod 7 and the drain pipe 3, the height the radial plates 5 should be 0.75 of the diameter of the drain pipe.

The reservoir operates as follows.

When pumping liquid from the tank 1 above the drain pipe 3, a vortex funnel forms, the gas core penetrates into the drain pipe 3 and further into the pump, which leads to the breakdown of its operation, large unused liquid residues in the tank 1 and the hydraulic resistance no transportation system.

The height of the formation of the funnel is not a constant value, but depends on the rate of selection, the physical properties of the fluid, the constructive dimensions of the tank 1 and the presence of disturbing moments in the fluid.

Due to the difference in local properties (a fluid suitable to the drain nozzle 3, the symmetry of the fluid flow lines is disturbed relative to the fluid, which leads to the appearance of a torque moment and the occurrence of vortex-Yok on the surface of the fluid directly above the drain nozzle 3 (at the bottom of the discharge nozzle 3) or near the drain branch 3;

(in the case of its lateral location)

The optimum diameter of the washer 4 is three times the diameter of the nozzle 3, the thickness is determined from the buoyancy condition

(devices as a whole. The radial layers 5 protrude beyond the edge of the washer 4 along the length, and the height can be equal to 0.75 of the diameter of the discharge nozzle 3, since it is precisely the size of the gap

between the drain patr ubki 3 and flat thu washers 4 does not cause additional

e P

five

0

with

0

hydraulic resistance to the flow of fluid.

Claims (1)

1. A reservoir for storing a liquid, including a container with a bulk and located in the lower part of its drain branch pipes, a funnel quenching device located inside the tank and made in the form of a float, in order to reduce the time for draining by eliminating the ability to break the vapor phase in the drain pipe, it sleep & vertical guide rod to limit the movement of the float, while the lower end portion of the vertical guide rod is located in the zone of the drain pipe, and the float is made in the form of a washer with radial plates, vertically mounted on the bottom surface of the washer, and the float is mounted on the guide rod with possibility of reciprocating movement. 2 / The tank according to claim 1, wherein the drainage pipe is located below the lower end portion of the vertical guide rod, and the height of the radial plates is 0.75 times the diameter of the drain pipe. /