SU1685335A1 - Arrangement for incubating ovules of hydrobionts - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to fish farming, namely to devices for incubating aquatic eggs. The invention makes it possible to improve the incubation conditions of the eggs, increase the yield of viable larvae, and increase the convenience of operation. The body, which is closed from the bottom and from the sides, is divided into two compartments by a partition with an overflow hole. In one compartment a wheel with blades is strengthened, in the other - an incubation chamber formed by several sections, which is placed in a frame fixed on the same axis as the wheel with buckets blades mi. The frame is formed by two disk plates and three rods. Each section is provided with a removable cover and radial partitions. Elements are provided on the cylindrical surface of each section to interact with the frame cores and fix the position of the sections. The housing is equipped with a drain hole, air and water inlets. 2 Cp f-ly, 5 silt,

Description

FIELD OF THE INVENTION The invention relates to fish farming, namely to devices for incubating aquatic eggs.

The purpose of the invention is to improve the incubation of eggs and increase the yield of viable larvae, increasing the ease of operation,

Figure 1 shows the device, a general view; 2 shows a section of an incubation chamber, viewed from above; FIG. 3 shows a section of the incubation chamber, side view; FIG. 4 is a top view of the device; Fig. 5 shows a housing compartment and a wheel with blades.

The device for incubating the spawn of hydrobionts includes a housing 1, closed from the sides below and open from above, divided into two compartments 2 and 3 by a partition 4 with an overflow hole 5. In compartment 2 there is an incubation chamber 6 inserted into frame 7, in compartment 3 a wheel is made 8. The incubation chamber 6 is divided into sections 9 with perforated walls and having a cylindrical shape. Section 9 is divided into sectors 10 by radial partitions 11. On the cylindrical surface of section 9 there are elements 12 for fixing in frame 7. Section has removable cover 13 fixed by nut 14, Frame 7 consists of double-disk plates 15 connected by rods 16 inserted into recesses 17 disk plates 15. The frame 7 is fixed at one end in the fluoroplastic sleeve 18, and the second end through the fluoroplastic sleeve 19 is connected to the wheel 8 by means of the rod 20, the fluoroplastic sleeves 18 and 19 are fixed on the opposite walls of the compartment 2.

The wheel 8 is fixed on the rod 20 of the frame 7 and has blades 21, made in the form of buckets. In compartment 3 there is an upper

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a water supply pipe 22 and a lower air supply pipe 23. In the bottom of the compartment 3, a drain hole 24 is made.

The device works as follows.

The obtained eggs are placed in portions in sectors 10 of the incubation chamber 6, previously placed in cover 13. The number of incubated eggs should not exceed 3/4 of the volume of sector 10. Sections 9 with caviar are inserted into frame 7 as follows. First, one of the rods 16 of the frame 7 is gently pressed to the side of the edge of one of the disc plates 15, thereby freeing the opening in the frame 7 where sections 9 of the incubation chamber 6 are inserted into the two remaining rods 16. Then withdrawn The rod 16 is inserted into place, thereby fixing section 9 on three sides. In compartment 2, water flow is established, which flows through sewer overflow 5 in partition 4 and drain 24 into the sewer system. Thus, the incubation chamber 6 with the frame 7 is in running water. Having supplied water from above or air from below through nozzles 22 and 23 to wheel 8 with blades 21, we thereby rotate it, and through rod 20 frame 7 with incubation chamber 6. As frame 7 rotates, chamber 6 rotates around its axis, moving in space section 9 with caviar. Thus, the caviar all the time seems to be in free fall relative to the walls of sectors 10, which allows it to mix more smoothly and rhythmically in a layer of water, not stagnant and not injured. As the larvae hatch, they are deposited from the incubation chamber 6 into separate containers, and the remaining eggs are incubated.

The wheel 8, located in compartment 3, is equipped with bucket blades 21, which are the main elements in the drive, as water accumulators from the air. If water from the upper nozzle 22 is used for rotation, then as it accumulates in the upper hook-shaped blade 21, the center of gravity shifts to the side, thereby turning the wheel 8 around its axis. When this happens, the next blade starts to fill up with water, etc. As the wheel 8 rotates, water from the blades 21 begins to pour out and completely releases the blade in the lower position. The used water is removed through the lower drain opening 24. If air from the lower nozzle 23 is used for rotation, then the outside opening 24 is closed and the compartment 3 is filled with water. At the same time, air begins to displace water from the lower bucket blade 21, thereby creating a lift force, which, turning the wheel 8, substitutes the next blade 21, etc., into the air. As the wheel 8 rotates, the air from the blades 21 begins to come out and is fully released in the upper position. The rotational speed of the incubation chamber 6 depends on the amount of air or water supplied to the wheel 8 with blades 21. The use of air or water for rotation allows for incubation in stationary and field conditions,

When a certain supply of air or water is reached on the Drive, you can achieve a spasmodic rotation of the incubation chamber, while the eggs alternately smoothly alternately, then stop. Such a course of incubation is very relevant for the incubation of crayfish eggs, since it allows copying the natural incubation of females who wash the eggs on the abdomen periodically. In order to incubate fish eggs, the rotation of the chamber must be constant.

All this makes it possible to create all the conditions for incubating the eggs by more rhythmic and smooth mixing in suspension, eliminating the injury to the eggs, thereby increasing the yield of larvae, and also allowing for incubation in field and stationary conditions. The device is convenient to use, as caviar is easily accessible for sampling and cleaning at any time.

Claims (3)

Claim 1. Device for incubating caviar of hydrobionts, including a water tank, a housing, an incubation chamber of cylindrical shape with perforated walls mounted on it for rotation on a common axis, and a wheel with blades, and made in a housing under the wheel with blades An air supply nozzle, characterized in that, in order to improve the conditions of incubation of the roe and increase the yield of viable larvae, to increase ease of operation, the measles can be closed on the sides and open from the top. It is provided with a vertical partition with an overflow hole dividing the body into two compartments, a wheel with blades located in one of the compartments, and an incubation chamber in the other, a frame with disk plates and three removable rods are additionally attached to the axis, the incubation chamber is formed by several The sections, each of which is provided with a removable cover, on the outer cylindrical surface of each section, are provided with elements for interacting with the frame rods and fixing the position of the sections. 2. The device according to claim 1, wherein the section is provided with radial partitions. 3. Device pop. 1, characterized in that the casing is provided with a drain hole and a water supply pipe located above the wheel with blades, and the blades have a bucket-like shape. eight ten P 2 If) cr n in 00 ID SP