CN114988592A

CN114988592A - Device for oxygenating deep water delivered to surface layer

Info

Publication number: CN114988592A
Application number: CN202210481904.5A
Authority: CN
Inventors: 邱学尧; 宫鹤群; 张伟; 周扩全; 武尚荣; 邓云武; 龚志华; 梁仕义
Original assignee: Kunming Engineering & Research Institute Of Nonferrous Metallurgy Co ltd
Current assignee: Kunming Engineering & Research Institute Of Nonferrous Metallurgy Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-09-02
Anticipated expiration: 2042-05-05
Also published as: CN114988592B

Abstract

The invention provides a device for conveying deep water to a surface layer for oxygenation, which is characterized by comprising an aeration disc, a conveying pump and a conveying pipe, wherein the aeration disc is arranged on the surface layer water, the water outlet of the aeration disc is higher than that of the surface layer water, the conveying pump is connected with the water inlet of the aeration disc, the conveying pipe is connected with the water inlet of the conveying pump, and the water inlet of the conveying pipe is arranged in the deep water. The deep water is conveyed to the surface layer through the conveying pipe and the conveying pump for oxygenation, so that the oxygen content in the whole water area is improved, and the problem that the deep water cannot reach the surface layer for oxygen absorption is solved. Not only improves the oxygenation efficiency, but also can increase the dissolved oxygen only by conveying the inside of the liquid phase, thereby greatly reducing the energy consumption.

Description

Device for oxygenating deep water delivered to surface layer

Technical Field

The invention relates to an oxygenation device, in particular to a device for delivering deep water to a surface layer for oxygenation, and belongs to the technical field of dissolved oxygen regulation of water bodies.

Background

Natural water, sewage treatment and aquaculture need to ensure that the water has certain dissolved oxygen content, and increasing the dissolved oxygen content of the water is often the key for water restoration, sewage treatment and aquaculture and is also an important group of investment and operating cost. The current common aeration and oxygenation modes mainly comprise blast aeration and surface aeration, and the two modes have the condition of poor water oxygenation effect. Meanwhile, the blast aeration conveys air with density far lower than that of water to a deep water area, and more energy is consumed; surface aeration also consumes a lot of energy to transport surface water, which is much denser than air, into the air. In addition, the surface of the water body is directly exposed in the air, so the water dissolved oxygen content of the surface layer of the water body is high, and the transfer rate is low according to an oxygen transfer rate calculation formula; the deep water has low oxygen content and high transmission rate, but is blocked by surface water and cannot be transmitted. There is therefore a need for improvements in the prior art.

Disclosure of Invention

In order to solve the problems of poor oxygenation effect, high energy consumption and the like in the existing water body dissolved oxygen content increasing mode, the invention provides a device for transporting deep water to a surface layer for oxygenation.

The invention is completed by the following technical scheme: the utility model provides a device of deep water defeated oxygenation to top layer which characterized in that includes that its water inlet and delivery port are close the surface of water, and the aeration dish of water inlet is kept away from to the delivery port, the delivery pump that links to each other with aeration dish water inlet, the conveyer pipe that links to each other with the delivery pump water inlet, this conveyer pipe water inlet is located deep aquatic to carry deep water to aeration dish surface through the delivery pump through the conveyer pipe, fully absorb the oxygen among the air and flow into the top layer aquatic.

The aeration disc is a disc body which is inclined from a high disc center to a low disc edge, a water inlet is formed in the high disc center, and water outlets are formed in the low disc edge, so that deep water flows into the water area from the water inlet after flowing into the water area from the high disc center to the low disc edge in the process of absorbing oxygen in the air.

Aeration dish quotation is equipped with a plurality of water conservancy diversion strips, and a plurality of water conservancy diversion strips are the spiral and distribute along the quotation, and one in two liang of water conservancy diversion strips is established to the edge from the heart of a dish and is full strip, and another is half from edge to the quotation middle part, so crisscross in whole quotation to guide to the dish edge from the heart of a dish through a plurality of water conservancy diversion strips deep water that will get into the quotation, thereby improve the even degree that rivers distribute, increase water and air contact's time in the quotation, promote the oxygen increase volume.

The conveyer pipe is established to top and bottom and is taken open vertical pipe, and the conveyer pipe top is uncovered to link to each other with the water inlet of aeration dish heart department, and the bottom is uncovered to be located deep aquatic to carry deep water to top layer oxygenation through the conveyer pipe.

The lower end of the conveying pipe is fixed in deep water through a fixing frame or a fixing rope.

The whole density of the aeration disc is lower than that of water, the aeration disc floats on the water, and the conveying pipe is arranged in deep water through self weight.

The aeration disc is fixed on the surface water through a fixing frame or a fixing rope so as to be fixed, and further the deep water is conveyed to the disc surface through a conveying pipe for oxygenation.

The delivery pump is connected with a power supply mechanism, and the power supply mechanism is an animal battery or a cable connected with a power grid or a wind power generation device or a solar power generation device and used for supplying power to the delivery pump.

The delivery pump is a conventional water pump with large flow and small lift, so that the delivery efficiency is improved, and the energy consumption is reduced.

The invention has the following advantages and effects: by adopting the scheme, the deep water can be conveniently conveyed to the surface layer through the conveying pipe and the conveying pump for oxygenation, so that the oxygen content in the whole water area is improved, and the problem that the deep water cannot reach the surface layer for oxygen absorption is solved. Not only improves the oxygenation efficiency, but also can increase the dissolved oxygen only by conveying the inside of the liquid phase, thereby greatly reducing the energy consumption. Is an ideal water body oxygenation device.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is another block diagram of the present invention;

fig. 4 is a top view of fig. 3.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

The invention provides a device for conveying deep water to a surface layer for oxygenation, which comprises an aeration disc 1, a conveying pump 7 and a conveying pipe 8, wherein a water inlet 6 and a water outlet of the aeration disc are close to the water surface, the water outlet of the aeration disc is far away from the water inlet 6, the conveying pump 7 is connected with the water inlet 6 of the aeration disc 1, the conveying pipe 8 is connected with the water inlet of the conveying pump 7, and the water inlet of the conveying pipe 8 is arranged in the deep water;

the aeration disc 1 is a disc body which is inclined from a high disc center to a low disc edge, a water inlet 6 is arranged at the high disc center, and water outlets are formed in the low disc edge, so that deep water enters the aeration disc 1 from the water inlet 6 and flows into a water area after absorbing oxygen in the air in the process of flowing from the high disc center to the low disc edge;

the aeration disc 1 is provided with a plurality of flow guide strips 2 on the disc surface, the flow guide strips 2 are spirally distributed along the disc surface, one of every two flow guide strips 2 is full from the disc center to the edge, and the other flow guide strip is half from the middle part to the disc edge of the disc surface, so that the flow guide strips are staggered on the whole disc surface as shown in figures 2 and 4, so that deep water entering the disc surface is guided from the disc center to the disc edge through the flow guide strips 2, the uniformity of water flow distribution is improved, the time of contact between the water and air on the disc surface is increased, and the oxygen increase is promoted;

the conveying pipe 8 is a vertical pipe with openings at the top and the bottom, the opening at the top of the conveying pipe 8 is connected with the water inlet 6 at the center of the aeration disc 1, and the opening at the bottom is arranged in the deep water so as to convey the deep water to the surface layer for oxygenation through the conveying pipe;

the lower end of the conveying pipe 8 is fixed on a hook 10 in deep water through a fixing rope 9;

the whole density of the aeration disc 1 is lower than that of water, the aeration disc floats on the water, and the conveying pipe 8 is arranged in deep water through self weight;

the aeration disc 1 is fixed on the surface water through a fixing frame 11 so as to be fixed, and further, the deep water is conveyed to the disc surface through a conveying pipe to be oxygenated.

The delivery pump 7 is connected to a cable 12 of the power grid, as shown in fig. 3, and obviously may also be connected to a cable of a wind power generation device or a solar power generation device for supplying power to the delivery pump 7;

When the aeration disc works, the deep water is conveyed to the surface of the aeration disc 1 through the conveying pipe 8 by the conveying pump 7, and oxygen in the air is fully absorbed and then flows into the surface water.

The oxygenation efficiency is a main index for describing the oxygenation efficiency of the aeration equipment, and according to relevant data, the oxygenation efficiency of the surface aeration device is about 1-3 kg/(kW.h), and the oxygenation efficiency of the blast aeration device is about 1-6 kg/(kWh.h).

In the device for oxygenating deep water conveyed to the surface layer, the only power device is a conveying pump, the conveying pump mainly overcomes a resistance head of a pipeline and a dynamic head generated in the conveying process, the two heads are controlled within 0.2m, in addition, the mechanical efficiency of the conveying pump is 50%, after the deep water is conveyed to the surface layer to absorb oxygen in air, the dissolved oxygen content is 50% of saturated dissolved oxygen (about 5 mg/L), and then the oxygenating efficiency of the device for oxygenating deep water conveyed to the surface layer is as follows:

from the above calculation, it can be seen that the oxygenation efficiency of the device for delivering deep water to surface layer oxygenation of the embodiment is superior to that of the existing surface aeration device, and the oxygenation efficiency is higher than that of blast aeration. The parameter values in the calculation process of the formula are conservative, and in the actual application process, the water head to be overcome, the basic mechanical efficiency of the delivery pump and the surface water dissolved oxygen content can be further optimized, so that higher oxygenation efficiency is achieved.

Claims

1. The utility model provides a device of deep water defeated oxygenation to top layer which characterized in that includes that its water inlet and delivery port are close the surface of water, and the aeration dish of water inlet is kept away from to the delivery port, the delivery pump that links to each other with aeration dish water inlet, the conveyer pipe that links to each other with the delivery pump water inlet, this conveyer pipe water inlet is located deep aquatic.

2. The device of claim 1, wherein the aeration plate is a plate inclined from a high plate center to a low plate edge, the high plate center is provided with a water inlet, and the low plate edge is a water outlet.

3. The device as claimed in claim 1, wherein the aeration plate is provided with a plurality of flow guide strips on the plate surface, the plurality of flow guide strips are spirally distributed along the plate surface, one of every two flow guide strips is full from the center to the edge of the plate surface, and the other flow guide strip is half from the middle to the edge of the plate surface, so as to be staggered on the whole plate surface.

4. The device for aeration of surface layer of deep water according to claim 1, wherein the delivery pipe is a vertical pipe with an opening at the top and bottom, the top opening of the delivery pipe is connected with the water inlet at the center of the aeration plate, and the bottom opening is arranged in the deep water.

5. The device for delivering deep water to surface layer for oxygenation as claimed in claim 1, wherein the lower end of the delivery pipe is fixed in the deep water by a fixing frame or a fixing rope.

6. The device for aeration of deep water delivered to surface layer of claim 1 wherein the aeration plate has a bulk density lower than that of water, floats on water, and the delivery pipe is placed in the deep water by its own weight.

7. The device for delivering deep water to surface layer for oxygenation as claimed in claim 1, wherein the aeration disc is fixed on the surface water by a fixing frame or a fixing rope.

8. The device for delivering deep water to the surface layer for oxygenation as claimed in claim 1, wherein the delivery pump is connected with a power supply mechanism, the power supply mechanism is a storage battery, or a cable connected with a power grid or a wind power generation device or a solar power generation device.