SU1140730A1 - Apparatus for aeration of water in basings - Google Patents

Abstract

1. A DEVICE FOR WATER AERATION IN WATER ACCESSORIES, comprising a housing with a water inlet, a mixing chamber, placed between the housing and a chamber, a perforated diaphragm with water-spinning devices having vanes and vortex chambers, pipelines horizontally installed in the mixing chamber, alone the ends of which are connected to the diaphragm, ejectors and a collector with an air inlet pipe, characterized in that, in order to increase productivity and ensure fine dispersion, th mixture mixing chamber is provided with a device for imparting turbulent flow disposed at its outlet, the ejectors are installed in the inlet piping and connected to the collector, the pipes are made of variable section and have openings arranged along a helical path at an angle to their longitudinal axis. 2. The device according to claim 1, characterized in that the device for imparting turbulence to the flow is made in the form of a shell i with blades located inside, the direction of which is similar to the direction of the blades of devices for tightening (L. water flow. 3. The device according to claim 1, characterized by that each ejector is made spring-loaded, installed in guides and provided with a seal.

Description

The invention relates to fish farming, in particular, to devices for aerating water in fish ponds.

A device for aerating water in fish ponds is known, consisting of a housing with a water inlet nozzle, a mixing chamber with a conical nozzle located between the housing and a perforated diaphragm chamber with fittings for swirling water flow and vortex chambers and headers with air inlet nozzle 1.

The disadvantage of the device is low efficiency, since it has a small saturation zone, i.e., atmospheric air enters only the discharge zone formed in the vortex chamber of each device for swirling the water flow, and its displacement with water is due to energy swirling in the chambers of the flow of water, which is negligible.

Closest to the invention is a device for aerating water in reservoirs, comprising a housing with a water supply nozzle, a mixing chamber positioned between the housing and the chamber, a perforated diaphragm with devices for swirling the flow of water having vanes, and vortex chambers, pipelines horizontally installed in a mixing chamber, one ends of which are connected to the diaphragm, ejectors and a manifold with an air inlet pipe 2.

A disadvantage of the known device is low productivity, since the ejectors installed at the outlet ends of the pipelines slightly increase the flow rate of the water-air mixture formed in the turbulence fittings, respectively, and the volume of atmospheric air drawn into the mixing chamber is significant. Along with this, the device does not provide a fine dispersion of the water-air mixture, which does not increase the degree of water saturation with oxygen in the air.

The purpose of the invention is to increase productivity and ensure fine dispersion of the airborne mixture.

The goal is achieved by the fact that, in a device comprising a housing with a water inlet nozzle, a mixing chamber located between the housing and the chamber, a perforated diaphragm with devices for swirling the water flow, having vanes and vortex chambers, the pipelines horizontally installed in the mixing chamber are alone the ends of which are connected to the diaphragm, the ejectors and the collector with the air inlet duct, the mixing chamber is equipped with a device to impart turbulence to the flow located on its Exit, ejectors installed on inlet piping and connected to the collector, the pipes are made of variable section and have openings arranged along a helical path at an angle to their longitudinal axis.

In addition to this, the adaptation for turbulence flow is made in the form of a shell with blades located inside, the direction of which is similar to the direction of the blades of devices for twisting the flow of water.

In addition, each ejector is made spring-loaded, installed in guides and provided with a seal.

FIG. 1 schematically shows the proposed device, a general view; in fig. 2 is a section A-A in FIG. G; in fig. 3 is a view B in FIG. one.

The device comprises a housing 1 with a water inlet pipe 2, a mixing chamber 3, a perforated diaphragm 4 placed between the housing and a mixing chamber with fixtures 5 for swirling water flow and vortex chambers 6, a manifold 7 with an air inlet 8. In the mixing chamber 3 horizontally fixed pipelines 9 of variable section. At the entrances of the pipelines 9, ejectors 10 are installed, connected to the collector 7. At the outlet of the mixing chamber 3, a device 11 is mounted to impart turbulence to the flow with a conical nozzle 12. The pipelines 9 are made with holes 13 arranged in a helical line at an angle to the longitudinal axis. The torsional devices 5 are connected to the collector 7 by means of tubes 14.

Ejectors 10 are mounted in guides 15 with springs 16 and are provided with seals 17.

The device 11 for imparting turbulence to the flow is made in the form of a shell 18 with blades 19, the direction of which is similar to that of the blade 20 of the devices 5 for turning the water flow (Fig. 3).

The device works as follows.

Water through the water inlet pipe 2 is pumped into the housing 1 to the perforated diaphragm 4 and passes through the devices 5 for curling the water flow and the ejectors 10. In the paraxial zone of each device 5 a discharge zone is formed, where air flows from the collectors 7 through the pipes 14. The mixing process begins in the vortex chamber 6 and continues in the mixing chamber 3.

In the axial channels of the ejectors 10, a discharge also occurs, due to which air from the collector 7 is sucked into the pipelines 9. The size of the throughput section (the gaps between the ejectors 10 and the pipelines 9 inlets) automatically changes depending on the head pressure, i.e. head in the housing 1 ejectors 10

along the guides 15, retract towards the collector 7, while the springs 16 are compressed, and when the head decreases, the ejectors 10 by the springs 16 return to their original position. Formed water-air mixture enters the pipelines 9.

Since air gets inside the jets, the effect of displacement and saturation of water with oxygen increases. This is also facilitated by the variable cross-section of the pipelines 9, since the flow rate varies. Part of the flow from the pipelines 9 through the holes 13 in the form of inclined jets forming a helix enters the mixing chamber 3, creating a rotational movement in it and increasing the dispersion. The jets emanating from the pipelines 9, falling into the conical nozzle 12, create an additional ejection effect.

The formed air-water mixture from the mixing chamber 3 and the pipelines 9, the passage through the turbulence fixture 11 of the stream, mixes and receives an additional enhanced rotational motion, thereby increasing the effect of dissolving and displacing it with the bodies of water in the reservoir.

The implementation of variable cross-section pipelines 9 with openings located along a helical line at an angle to the longitudinal axis, and the installation of ejectors connected to the collector to the pipelines significantly increase the volume of air entering the discharge zones, the mixing process is carried out evenly along the entire length of the mixing chamber in turbulent flows, which leads to the provision of fine dispersion of the airborne mixture and an increase in the productivity of the device approximately 1.5 times.

Supplying the mixing chamber with a turbulence fixture allows for additional rotation to the flow, which increases the ejection effect and improves the mixing of the air / water mixture with the reservoir water, which increases the efficiency of aeration.

The proposed device allows an increase in the number of fish in the water bodies and can be used both as a coastal stationary installation and on floating craft, fulfilling the driving function as a passing vehicle, which will make it possible to obtain an additional economic effect.

Claims (3)

1. A device for water aeration in reservoirs, comprising a housing with a water supply pipe, a mixing chamber located between the housing and the chamber, a perforated diaphragm with devices for swirling the water flow having blades, and vortex chambers, pipelines horizontally installed in the mixing chamber, one ends of which connected to the diaphragm, ejectors and a collector with an air inlet pipe, characterized in that, in order to increase productivity and ensure fine dispersion of the water-air mixture and a mixing chamber provided with a device for imparting turbulent flow, disposed at its outlet, the ejectors are installed in the inlet piping and connected to the collector, the pipes are made of variable section and have openings arranged along a helical path at an angle to their longitudinal axis. 2. The device according to π. 1, characterized in that the device for imparting turbulence to the flow is made in the form of a shell with blades located inside, whose direction is similar to the direction of the blades of devices for twisting the water flow. 3. The device according to π. 1, characterized in that each ejector is spring-loaded, installed in the guides and provided with a seal. SU „„ 1140730