SU1479693A1 - Device for supplying surface water into deep layers of a water reservoir - Google Patents

Abstract

The invention relates to the protection and restoration of the biological resources of reservoirs, in particular, it is intended to combat fish blockages with a lack of oxygen in the byssal zone and a shortage of substances in the surface layer. The aim of the invention is to increase productivity by increasing the amplitude of movement and the time of water injection and the efficiency of aeration. Under the action of waves, the device makes vertical oscillations, while the movement of water inside pipe 1 below the check valve 4 as the device moves down is accelerated. Then the movement of the device slows down, and water flows out through the bottom of pipe 1. When the device passes waves, water enters the through hole 3 through the side channels 6, while the other side channels 6 that are above the water level of the reservoir are closed by non-return valves 7 The device delivers aerated water of the upper layers to the lower layers, which causes convective lifting of biogenic substances to the surface layers. 2 Il.

Description

 77 //// / 7777777777777777

however, the check valve 4 is accelerated when the device moves down. Then the movement of the device slows down, and water leaves it through the bottom of the pipe I. When the device passes waves, water enters the through hole 3 through the side channels 6,

This other side channels 6, located above the water level of the reservoir, are closed with non-return valves 7. The device supplies aerated water of the upper layers to the lower layers, which causes a convective rise of biogenic substances to the surface layers. 2 Il.

one

This invention relates to security and. Restoration of the biological resources of reservoirs, in particular, is intended to combat fish blockages with a lack of oxygen in the abyssal zone and a shortage of substances in the surface layer.

The purpose of the invention is to improve the performance of the device by increasing the amplitude of movement and the time of water injection.

Figure 1 shows a device for aeration of deep and saturation of nutrients of the surface layers of water bodies in figure 2 - the principle of the proposed device for the period of the wave.

The device for supplying surface water to the deep layers of the reservoir includes a vertical pipe 1, coaxially connected in the upper part with a float 2, having a through vertical opening 3, coaxial with the opening of pipe 1 and coaxial to the axis of the float 2. Inside pipe 1 with the possibility of blocking its opening a check valve 4 is installed, and a load 5 is fixed in the lower part of the pipe 1.

In the float 2, there are through side lateral culverts 6 between the outer surface of the float 2 and its through vertical opening 3. Each of the lateral channels 6 at the interface with the through opening 3 is equipped with a check valve 7.

The device is installed in a certain place of the reservoir with the help of the core 8. The water through channels are made so that the upper edges of their inlets are located at the level of the float's waterline.

Device for supplying surface water into the deep layers of the reservoir works as follows. By means of the core 8, the device is installed in the required place of the reservoir.

five

0

five

0

five

0

Float 2 ensures the positive buoyancy of the entire device so that the culvert canals 6 are below the water level, and in the absence of wind waves their top edge is located at the water level. Under the action of wind waves, which are located on the surface of water bodies of large areas (seas, lakes, reservoirs, etc.) and moving with speed C at a wavelength, the device performs forced vertical oscillations. Water from the oxygen-rich surface layer enters the through hole 3 through the culvert channels 6 and through the upper edge of the float 2 when it is submerged under the wave. At the same time, water is additionally aerated due to turbulence of movement during flow through channels 6 and the edge. When the device moves downward on the slope of the wave, the check valve 4 in the vertical pipe 1 closes under the action of the inertial mass forces of the liquid, which arise during the accelerated movement of the device. After the check valve 4 is closed, the vertical column of fluid under the check valve 4 moves rapidly with the device. However, the movement of the device 1 on the slope of the wave after passing the middle line of the quiet water level slows down and a moment comes (moment A in Fig. 2 ) when the velocity of a fluid in a vertical pipe 1

J147

due to inertial forces, it begins to exceed the speed of lowering the device. At this point, the check valve 4 opens and the water begins to move downward relative to the device. A portion of the oxygen-enriched surface water is pumped into the abyssal zone (downwell). The injection process continues even after the wave trough passes, as the direction of movement of the device changes (it begins to move upwards). The check valve 4 is closed after passing the crest of the wave (moment B in Fig. 2), because at this moment the device’s speed, moving down, begins to exceed the decelerating speed of the fluid in the vertical pipe 1. Then the process repeats with period C. The injection time is shown in Fig. 2 by the segment t. - The outlet at the bottom of the vertical pipe 1, the oxygen-rich surface water mixes with the water of the abyssal zone and thus enriches it with oxygen. In this case, the surface water is more superficial, the water supplied by the device downwards, having a lower density as compared with the deep waters, rises upwards, carries along some quantity of cold water from the abyssal zone enriched with biogenic substances. The movement of water in the device and in the water column is shown by arrows in FIG. 2. The oscillating float 2 on the waves is itself a source of circular diverging displacement waves, which further increases the efficiency of aeration of the surface layer of the reservoir. The check valves 7 prevent the outflow of water from the through hole 3 through those drainage channels 6 which, when the device passes waves, appear above the surface of the water in the pond, but below it

0

five

0

five

0

five

surface in the through hole 3. In this case, it is achieved that the time of water injection by the described device exceeds half the wave period, i.e. t A / C (Fig. 2), and also creates an additional periodic change in the total mass of the described device due to him through the culvert 6 water. The frequency of this change in mass, which affects the buoyancy of the device, coincides with the period of the waves and leads to an increase in the amplitude of ver. ticking vibrations of the device, which also increases the amount of oxygen-rich surface water pumped into the deeper layers of the surface water and, as a result, rise to the surface saturated with nutrients of the deep water.

Claims (1)

Invention Formula A device for supplying surface water to the deep layers of the reservoir, mainly for aeration and saturation with biogenic elements of the surface water layers, contains a float with water throughput channels made in its body, a vertical water outlet pipe coaxially connected to the float and located in the latter non-return valve the fact that, in order to increase productivity by increasing the amplitude, movement and time of water injection, a through channel is formed in the float along its vertical axis, communicating with vertical pipe and culverts, and in the latter are installed check valves, while the culvert canals are made so that the upper edges of their inlets are located at the waterline level of the float.