RU2050337C1 - Apparatus for water stirring and oxygen saturating in water reservoir - Google Patents

Abstract

FIELD: apparatus is used in different assignment reservoirs to improve quality of water in stagnant zones with low speed water floating and shortage of oxygen absorption of water. SUBSTANCE: apparatus has wind wheel with vertical pipe mounted on pontoon on axis of its rotation. Lower end of pipe is dipped in deep water layers of reservoir. Inner cavity of pipe water inlet part has varying cross-section with narrowing on part of crest and outlet hole of water discharging part of pipe is located below water surface level of reservoir. Gate of water discharging part of pipe in zone of minimum cross-section, that is located above reservoir water surface level, is provided with canal-forming members, that are linked by its cavity with air medium. Besides water discharging part of pipe, as a version, is made in cross-section part in the form of disk and its floating part is provided with stream forming radial guiding partitions, dividing it for separate areas. EFFECT: increased quality of water in reservoirs. 3 cl, 4 dwg dwg

Description

 The invention relates to the protection of water from pollution and can find application in reservoirs for various purposes to improve water quality in stagnant zones with low flow and insufficient oxygen saturation of the water.

A device for aeration of water containing a pontoon mounted on it with a vertical pipe with a drive shaft and pump wheels located in the cavity of the pipe, as well as holes in the upper end of the pipe [1]
The disadvantages of the known device are the complexity of their operation, high energy costs and low efficiency of saturation of water with oxygen.

 The technical result of the proposed solution is to reduce operating costs and increase the efficiency of oxygen saturation of water.

 This is achieved by the fact that in a device for mixing and oxygenating water in a pond, including a wind turbine with a vertical pipe mounted on the pontoon coaxial to the engine, the lower end of which is immersed in the deep layers of the pond, and the upper outlet is curved upward, the inner cavity of the outlet part of the pipe has a variable cross section with a narrowing in the ridge, and the outlet of the water outlet of the pipe is buried under the water level in the reservoir, while the overlap of the outlet th part of the tube in the region of its minimum cross-section, located above the water level of the reservoir is provided with a duct forming elements joined with an air cavity medium.

 In addition, the water outlet of the pipe is made in cross section in the form of a circle, and its flowing part is equipped with radial guide walls that divide it into separate sections.

 In addition, the water outlet of the pipe consists of several sections, the outlet openings of which are directed at different angles to the surface of the reservoir.

 Figure 1 shows a cross section of a device for mixing and oxygen saturation of water; figure 2 plan (top view) with the option of a circular outlet; figure 3 section aa in figure 2; in Fig.4 cross section bB in Fig.2.

 The device consists of a pontoon 1, on which a vertically located pipe 2 is fixed. The pontoon 1 is flexibly connected with loads 3 located on the bottom of the reservoir. A shaft 4 is made along the axis of the pipe 2, a pump wheel 5 connected to the wind wheel is fixed at its lower end 6. The upper water outlet 7 of the pipe 2 is made with an outlet 8 buried under the water level of the reservoir.

 The internal cavity of the water outlet 7 of the pipe 2 is made of variable cross section with a narrowing in the area of the ridge 9.

 On the ridge section 9 in the zone of the minimum cross-section in the overlap made above the water level in the reservoir, channel-forming elements (channels) 10 are connected that connect the internal cavity with the air medium, elements 10 can be made expanding towards the air environment.

 When the water outlet part of the pipe is made in a circular cross-section, its flowing part is divided by jet-forming radial partitions 11 into separate sections 12, the outlet openings 8 of which can be directed at different angles to the surface of the reservoir.

 Partitions 11 can be made solid or with an internal cavity filled with air.

 The proposed device operates as follows.

 Under the influence of the wind, the wind wheel 6 rotates with the shaft and the pump wheel 5. Due to this, water from the deep layers of the reservoir through the lower open end of the pipe 2 is fed with the wheel 5 to the upper water outlet part 7 of the pipe, then to the ridge section 9, where air is captured, the entire water is filled cavity section of the crest 9 and the flow of water through the hole 8 in the upper layers of the reservoir.

 At the same time, due to a sharp increase in the flow velocity at the ridge section 9 in the zone of the minimum cross section, an ejection effect is achieved, in which, under rarefaction conditions, air is sucked through the channels 10 into the cavity, it is effectively mixed with water and saturated with oxygen.

 Depending on the wind speed and, accordingly, the rotational speed of the wind wheel and the pump wheel, the productivity of the installation changes.

 The pump wheel overcomes the pressure generated practically from the sum of the pressure losses at the inlet, along the length of the pipe and at the water outlet. This sum of losses is extremely small and generally does not exceed 0.2-0.5 m. Therefore, the installation will work even in conditions of insignificant wind speed over the water body, which in the season leads to a sharp increase in the process of water exchange and the period of operation of the installation. At the same time, to ensure the effect of ejection, it is necessary to achieve a certain water flow rate in the ridge section 9.

 Therefore, the optimal parameters of the flow part of the water outlet are determined taking into account changes in the wind speed in the seasonal section, wind turbine parameters and other factors in order to ensure effective oxygen saturation of the water over the billing period due to the use of the ejection effect.

 Thus, the proposed installation provides an intensification of the process of water exchange, mixing and oxygen saturation of the water. It is simple to operate, does not require electricity, works autonomously, and the period of its operation in the season increases due to the operation of the installation, even in conditions of low wind speed over the reservoir.

Claims (3)

 1. DEVICE FOR MIXING AND OXYGENING WATER OXYGEN IN A WATER BODY, including a wind turbine with a vertical pipe mounted coaxially with the engine on the pontoon, the lower end of which is immersed in the deep layers of the reservoir, and the upper water outlet is convex upward, with a convex shape that is convex upward, characterized in that the overflow part of the pipe has a variable cross-section with a narrowing in the ridge portion, and the outlet of the water outlet part of the pipe is buried under the water level in the reservoir, while the overflow outlet of the tube in the region of its minimum cross-section, located above the water level of the reservoir is provided with a duct forming elements joined with an air cavity medium.  2. The device according to claim 1, characterized in that the water outlet of the pipe is made in cross section in the form of a circle and its flowing part is provided with radial guide walls that divide it into separate sections.  3. The device according to paragraphs. 1 and 2, characterized in that the water outlet of the pipe consists of several sections, the outlet openings of which are directed at different angles to the surface of the reservoir.

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