SU820876A1 - Sprinkling apparatus - Google Patents

Description

one

The invention relates to devices for the distribution of liquid in heat and mass transfer apparatus and can be used in the chemical petrochemical, coking, food and other industries. ,

The irrigation device is known in the form of coaxially arranged branch pipes with placed on them one above another cones 1D

The disadvantage of a multi-cone irrigator is the complexity of the design, a narrow range of stable operation, since this irrigator works satisfactorily only at a constant-flow irrigation liquid / corresponding design head.

A liquid distributor is also known, including a plate with a drain tube passing through it, the upper part of which is bent 180. The distributor creates a uniform pulsating irrigation density 2.

The disadvantage of this liquid spray is a narrow range of efficient operation, especially for large tube diameters. This is due to the fact that the difference in the levels of the fluid discharged in one cycle is proportional to the bend radius of the tube. With large tube diameters, such as those used with large fluid flow rates, the frequency of pulsating irrigation is small. This constructive feature of the irrigator excludes. It works. - its operation in the mode of high frequencies of pulsations, which reduces the efficiency of heat and mass transfer processes.

It is known an irrigation device containing the main with a branch pipe fixed on it, above the upper end of which there is a cap, and below the lower end there is a sprinkler 3j.

 However, this device is characterized by an insufficiently wide range of stable operation, low

0 throughput of the fluid and the limitation of the limits of the thickness of the wall of the pipe.

The purpose of the invention is to expand the range of stable operation of the device and increase its capacity.

The goal is achieved by the fact that the nozzle is made with a projection conoidal shape in the upper part and (or)

0 with flared upper end.

It is also advisable that the cap be made with a recess in the lid.

The drawing schematically shows the irrigation device.

The device comprises a base 1, a pipe 2 with a protrusion of 3 conoidal shape, a cap 4 and a sprinkler S.

The device works in the following way.

The liquid is supplied to the fill through a feed pipe (not shown) continuously. After the refill is filled to the top of the nozzle 2, the liquid begins to overflow through it, is entrained and the gas gas is forced out from under the cap space. Drainage of fluid through the nozzle occurs until the level in the irrigator is lowered to the bottom of the cap. When this happens, the jet of fluid flow breaks and the cycle of speed stops. Then the level of the liquid in the sprinkler starts to rise again and when the top of the nozzle reaches the above described cycle, the operation is repeated.

The proposed sprinkler design provides a wider range of stable operation by changing the shape of the cap and nozzle, creating better conditions for funneling, fluid outflow through the nozzle and speeding up the process of removing air from under the cap space.

Claims (3)

1. An irrigation device containing a base with a branch pipe fixed on it, above the upper end of which there is a cap, and below the bottom there is a sprinkler, characterized in that 5 in order to expand the range of stable operation and increase capacity, the nozzle is made with a projection of a conoidal shape in the upper part and or with flanging 0 top end. 2. A device according to claim 1, characterized in that the cap is made with a recess in the lid. Information sources, C taken into account in the examination 1.Golovachevsky Yu.P. Sprinklers and nozzles scrubbers of the chemical industry. 1974, p. 127. 2. Authors certificate of the USSR 441948, cl. On 01 D 53/18, 1973. 3. The author's certificate-USSR No. 644516, cl. B 01 D 53/18, 05.11.75