RU209539U1 - DEVICE FOR OXYGENATION OF FISH CHANNELS - Google Patents

Abstract

The utility model relates to devices for increasing the oxygen content in fish breeding channels. The device consists of a hollow body equipped with windows for water inlet and outlet, pipes for intake and supply of oxygen-air mixture, a fitting for connecting the oxygen supply line, and partitions and atomizer mounted inside the body. On the side of the window for water outlet, the housing is equipped with distribution pipes of various lengths. The technical result is the saturation of water with oxygen along the entire length of the fish-breeding channel. 3 ill.

Description

Useful moth belongs to the field of industrial aquaculture and can be used to increase the oxygen content in fish breeding channels.

Known pressure cone oxygenator SOLVOX WITH [LINDE [Electronic resource]//. - Electron, art. - [Russia], 2021. - URL: https://www.linde-gas.ru/ru/industries/aquaculture/aquaculture.html, free. - (02.02.2020)] for fresh and sea water, designed to increase the level of oxygen concentration in water. The device consists of a housing with openings for water inlet and outlet, a fitting for connecting the oxygen supply and a control transparent tube. The device works as follows: using a pump, water is pumped into the hollow body through the top fitting. Simultaneously with water, oxygen is supplied to the cone. The water jet causes the water to mix intensively with oxygen bubbles. As the cone expands, the speed decreases. Small bubbles of gas, which have not yet completely dissolved, rise to the top of the cone against the downward flow of water. As a result, after passing through the cone, there are no undissolved oxygen bubbles in the water at the outlet of the lower fitting, and maintaining an excess pressure in the cone oxygenator provides a high level of dissolved oxygen concentration.

The disadvantage of this device is that it enriches the water locally, in close proximity to itself. Remote areas of the reservoir remain without saturation.

A device for oxygenation of a reservoir is known [Patent RU 195744 U1, Device for oxygenation of a reservoir. / Tikhonov E.A., applicant and patent holder Federal State Budgetary Educational Institution of Higher Education "Petrozavodsk State University" (RU); - No. 2019133461; dec. 2019.10.21; publ. 2020.02.04.], consisting of a body with cavities formed by a partition. In the lower part of the body there is a hole for water supply. An engine is installed on the body, to which a stirrer rotor is connected, the device also includes an air outlet pipe, an oxygen supply fitting, an air outlet valve and an oxygen-enriched water outlet pipe. The device works as follows: the device is immersed in water. The buoyancy of the device is provided by air cavities. Then the air is vented with a valve. The body of the device is almost completely submerged in water. Oxygen is supplied through the fitting into the cavity and displaces some of the water from it. The device pops up. Water is mixed with oxygen, and oxygen is rapidly dissolved in water due to the increased pressure in the cavity. Next, the engine is started. The rotor-mixer ensures the exit of water enriched with oxygen through the pipe and the suction of water through the hole in the lower part of the housing.

The disadvantage of this device is that the saturation of the reservoir with oxygen occurs unevenly. Areas of the reservoir at a distance from the device are not saturated or are saturated a little.

The closest analogue, taken as a prototype, is an intensive oxygenation device [Patent RU 195630 U1, Intensive oxygenation device. / Tikhonov E.A., applicant and patent holder Federal State Budgetary Educational Institution of Higher Education "Petrozavodsk State University" (RU); No. 2019139532; dec. 2019.12.03; publ. 2020.02.03], including a hollow body containing a partition dividing it inside into two parts, an oxygen-air mixture or oxygen supply pipe and a sprayer. The device comprises a hollow body provided with water inlet and outlet windows, oxygen-air mixture intake and supply pipes, an oxygen supply line connection fitting, and an atomizer and a baffle mounted inside the body with the possibility of overflowing water through it.

The disadvantage of this device is the inability to distribute oxygen-enriched water throughout the reservoir. As a result, the concentration of oxygen in the water is uneven: near the oxygenation device it is high, and at a distance it is low.

The technical result of the utility model is the possibility of uniform saturation of water with oxygen along the length of the fish-breeding channel.

The technical result is achieved by the fact that distributing pipes of various lengths are mounted on the side of the window for water outlet.

In FIG. 1 shows a diagram of a fish channel oxygenation device.

In FIG. 2 shows the position of the oxygenation device in the pond.

In FIG. 3 shows a view of the device, from the side of the water outlet window.

The device for uniform oxygenation of fish-breeding channels consists of a housing 1, on which a supply pipe 4 of an oxygen-air mixture, an intake pipe 3 and a fitting for connecting the oxygen supply line 5 are mounted. A baffle 2 and a spray 6 are installed inside the housing. 7 of various lengths, (see Fig. 1).

The device for uniform oxygenation of the fish-breeding channels operates as follows. The device is installed on the bottom of the reservoir by body 1. Water, getting inside the body, forms a gas cavity inside the body.

To ensure the water level inside the device body is flush with the baffle, excess gas is removed from the gas cavity inside the body 1 through the oxygen supply line connection fitting 5. Since the gas cavity inside the body 1 does not have communication with the atmosphere, the gas pressure in the cavity will be higher than atmospheric and will depend on the immersion depth of the device. Further, oxygen under pressure is supplied through the fitting for connecting the oxygen supply line 5. The pressure of oxygen supplied through the fitting 5 is chosen so as to displace water from the housing 1 to the level shown in Fig. 2. Upon reaching this level, the oxygen supply stops. The mass of the device is selected in such a way that it provides the device with negative buoyancy. Further, the oxygen-air mixture is pumped from the gas cavity inside the housing 1 through the oxygen-air mixture intake pipe 3 to the oxygen-air mixture supply pipe 4, from where the oxygen-air mixture is fed into the atomizer 6. The oxygen-air mixture, passing through the atomizer 6 breaks into microbubbles and enters the water inside one of the parts of the housing 1. Thus, the gas-water contact area increases and the active dissolution of the oxygen-air mixture begins in the process of microbubbles rising to the gas cavity inside the housing 1. In the process of microbubbles rising inside one a gas-water mixture is formed from the parts of the housing 1, the density of which is lower than the density of water at the depth of the device. Because of this, the column of the gas-water mixture rises above the partition 2 and the water overflows into the adjacent part of the housing 1. Further, the water leaves the housing 1 by gravity through the distribution pipes 7 and the water outlet window (see Fig. 3), and a new portion of water comes from the other side (see Fig. 2). Further, oxygen and air, which did not have time to dissolve, are again collected in the gas cavity of the housing 1. Since part of the oxygen and air has dissolved, the pressure in the gas cavity has decreased and the oxygen supply is resumed through the fitting for connecting the oxygen supply line 5. The pressure rises - the oxygen supply stops . Then the process is repeated. Pipes 7 of various lengths are laid along the bottom of the reservoir and provide supply of oxygen-enriched water to remote sections of the canal.

Claims (1)

Device for oxygenation of fish-breeding channels, including a hollow body equipped with windows for water inlet and outlet, pipes for intake and supply of an oxygen-air mixture, a fitting for connecting an oxygen supply line, a partition and a sprayer mounted inside the body, characterized in that to the body from the side of the exit window distribution pipes of various lengths are installed.

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