JPS60179198A - Device and mechanism for recovering energy generated from density difference between water and air in purifying water of river, lake and sea by aeration and device and mechanism for utilizing recovered energy to increase purification capacity - Google Patents

Abstract

PURPOSE:To purify economically water by providing a device for recovering density equalizing energy generated in the aeration of water and a device and its accompanying mechanism for increasing the purification capacity by utilizing the energy. CONSTITUTION:The air spouted out into 4b is made into independent foam, mixed with inflowing water, and pushed up and fluidized as bubbles. The generated bubbles, etc. go upward in 10b and push a blade B1 upward. Consequently, turning effor is given to a waterwheel A, and the energy is converted into turning energy. The turning effort given to the waterwheel body A is transmitted from a shaft C1 to a gear D1 to increase the torque, and transmitted to an energy regenerating device E from a shaft C2. The DO in water is increased by the air sent out additionally from a compressor E, etc., and the convective force of water is also increased. Accordingly, the purification of water is promoted and the water quality is made uniform.

Description

[Detailed Description of the Invention] In recent years, rivers, lakes and marshes (including Tamu)? The quality of the water has deteriorated significantly due to wastewater and domestic water in the area, and a foul odor has developed in the raw water, making it impossible for Korean seafood to live there.

The reasons for this are: (1) In rivers, the BOD is high due to industrial wastewater, and in rivers that are almost stagnant and have few flow meters, there is a lack of oxygen supply, resulting in an oxygen-deficient situation. Part 1
At 11 points, methane gas (C) is produced by the activity of anaerobic bacteria.
H4).

Ammonia (NH♂-), hydrogen sulfide (H2S).

Melkaftano etc. are generated and produce a bad odor.

In other words, it becomes a river of death.

(2) The inflow of organic (N, P, etc.) domestic extraction water consumes dissolved oxygen in the water, which also becomes an anaerobic L state.

(3) In the case of stagnant lakes and sea areas, the inflow of natural or domestic tJl water containing a large amount of a-containing materials such as (1) <N, I), etc., which are the same as rivers, causes an oxygen deficiency and generates a foul odor. There, nutrient salts are formed by the decomposition of organic matter. This state of high nutrient content is called a eutrophication phenomenon1. Nutrient salts cause abnormal growth of plankton and algae (red tide in the sea occurs at this time), and oxygen consumption in the water increases. (2) From autumn to winter, the water near the surface of lakes and marshes (;I) is cooled by the low temperature of the outside air, so the warm water at the bottom of the lake Displacement with the water temperature zone, that is, the χ j flow phenomenon (cooled, high-density water sinks, and warm, low-density water rises), equalizes dissolved oxygen in lake water, etc. From spring to summer, the water temperature near the water surface (;I) is higher than the water temperature at the lake bottom, so no substitution (convection) phenomenon occurs within the lake water. Therefore, the water in the middle to lower layers of the lake becomes oxygen-deficient. Even under this situation, CH4, NH,, H
2S etc. are generated and a bad odor is generated.

As can be seen from the above, the cause of the deterioration of water quality in lakes and marshes is a lack of oxygen in the water, which occurs in listed water, domestic wastewater, etc. Therefore, increasing the Do (dissolved amount of oxygen) in water by some method will lead to solving the problem.

Conventionally, a wide variety of devices and mechanisms have been considered and implemented as a method for increasing DO (dissolved oxygen) and purifying water quality, and the methods are as follows.

(1) Simple air injection method: In this method, air jets are arranged at equal intervals on the bottom of a lake, etc., and the air is discharged into gray water using a comb sor. This is a method of measuring convection in lakes and marshes by forcibly increasing DO in the water or by using flow energy due to the density difference between air and water.

In this method, it is necessary to constantly send air at a pressure equivalent to the water pressure at the air outlet.

Therefore, sending air requires a large amount of labor and effort, which is uneconomical. (2) A method of temporarily storing air in a container and releasing it all at once: This method is a method of storing air temporarily in a container and releasing it all at once. Install the air pipe and then fill the container with air.

Next, the container's [J] is opened all at once in an attempt to replace the water in lakes and marshes by convection.

However, this method also requires a large amount of air and pressure to completely replace the water in lakes, marshes, etc., and is very uneconomical. Furthermore, if a large amount of air is released into the water all at once, the water in lakes and marshes may be ejected from the water surface by several degrees nI or more, and there is a possibility that extremely loud explosive sounds and vibrations may be generated. It is possible that significant damage may be caused.

(3) Replacement method by pumping up water: This method lowers the pump to near the bottom of a lake or marsh.

This method involves pumping up water and discharging it onto the water surface to replace water in lakes, marshes, etc. In this case, a large number of pumps are required, and therefore the operating cost is enormous and the power source for operating the pumps is also large, making it uneconomical.3 (4) Mechanical stirring method: There are generally two types of stirring methods. One is the air released in lakes, etc. mentioned in (1).
- This is a method in which the rising energy is collected into a tank (11 liters of water) and a turbine is rotated to stir and homogenize the water in lakes and marshes.

1-1 is a method in which a stirrer is rotated by the power of a motor or the like to homogenize the water quality.

Regarding the former, since the released energy f~ is utilized, if the rotational energy of the turbine is considered alone, it is very economical, or no reduction effect can be expected on the air feeding force of the energy source. Regarding the latter, a huge amount of energy is required to rotate the stirrer and it is extremely uneconomical. Send air into a pipe that is set vertically and has both ends open.
11, the density inside the pipe is reduced, and the pressure of the air continuously sent to the secondary stage is low, making it an energy-saving device.
However, even in that device, the energy flowing in the pipe and the energy released from the jet 1-1 are not utilized in any way.

*The present invention applies to rivers, lakes (17), seawater purification methods (D
Method for increasing O and equalizing DO by convection in water)
(5), which is considered to be the most excellent method, is a device that recovers and utilizes the energy released during air pinion, and a method that uses rJf to increase the purification capacity. Therefore, "water purification ability"
This is the optimal method from the point of view of economic efficiency.

The present invention will be explained below with reference to the drawings.

FIG. 1 is a conceptual diagram of the present invention. FIG. 2 shows the energy recovery device section flowing in the pipe in a front cross-sectional view. Third
The figure is an enlarged view of the blade section in Figure 2. FIG. 4 is a side sectional view of the energy recovery device section, the energy regeneration section, and a part of the requisite. FIG. 5 is also a cross section of the energy regeneration mechanism.

(1) is a compressor and air feed 16° (2)
is an air pipe, (3) is a filter to prevent dirt from entering, and (41 is a pipe that guides water, foam, and foam).

(6) is generally 6' of water! ,
This is a turbine (waterwheel) used for stirring.

(C is the turbine shaft (s)) (9) is the turbine shaft stand and bearings (10) is the recovery equipment section and remanufacturing equipment section (11) is the low-pressure compressor (12) is the low-pressure compressor Air pipe, +131 is a remanufactured air sending pipe (I4) is a requilator, and (1s) is a pipe for reusing the released energy.

(16) is underwater (capital) is a water turbine for energy recovery 111 (Bl is the blade attached to the water wheel and the storage part for the blade. ta is the axis of the water wheel and the axis of the gear, (D) is for energy transmission. Consists of gears.

First, the compressed air created by the compressor in (1) passes through the air pipe in (1-b) from the air outlet 1 in (2-C), and when the air pressure reaches the water droplet at this position. The air blows out. The blown air rises due to the density difference between air and water. At that time (4-l)
) The density of the inner metal body also decreases due to the inflow of air.

The force that attempts to compensate for the decreased density and achieve uniformity is (1
It occurs in the water in step 6) and water flows in from the filter in step (3). The air blown out in (4-1)) becomes a single bubble, mixes with the inflowing water, becomes foamy, and is pushed out and flows. The flow will occur as long as the air continues to be released. Next, the bubbles, etc. that are generated are inside (10~b) ]-
In order to rise and pass, the blades (B~1) are pushed upward (giving rotational force to the water wheel body of A+ and being converted into rotational energy. As you can see, the inner tip half of the blade is (B~2)
Because there is a void like this, forces in two directions always act on the side where foam, etc. passes (The blades of Bl spread out and move in the opposite direction, creating a force in the body of human water di. It is stored in B to 3) and has a mechanism that does not provide resistance to the rotation of the water wheel in A). (A) The rotational force transmitted to the water turbine body is transmitted from the shaft (C~1) to the gear (D~1).

If necessary, the torque is transmitted to the gears (I) to 2) to increase the torque force, and the torque is transmitted from the shaft of (C to 2) to the energy reproducing device of (E). This energy recycling device is a commonly used compressor that extracts air from the air pipe (12), compresses it, and connects it to the air pipe (+31) and (
It passes through part of the requisite of 14) and discharges to (4-d).

The regirator (14) is a valve for preventing water from flowing in.

At that time, if necessary, use the compressor (11) to
2) Receive assistance through the air pipe 3° Also, the air pressure at this time can be a pressure commensurate with the density of (4 to d), which is already smaller than the initial density. The density of (4-d) further decreases due to the air released to (4-d), so the amount of water flowing in from the filter (3) further increases, and the water wheel (A) can also obtain a large rotational force. become. (However, the rotational force has a limit and is not infinite.) Discharge to (4 to d) The bubbles, etc. that have moved are discharged from the air opening in (5). fE)
The DO in the water is further increased by the air additionally sent out from the compressor, etc., and the convection force of the water is increased to promote uniform purification of water quality. (6) is a commonly used water agitation turbine, and (6) rotates and agitates water by foam etc. released from the air opening 1 in (5).

This is also a way to use renewable energy. FIG. 5 shows a method in which the used foam, etc. is recovered again and again by the turbine, and the same conditions as the above-mentioned principle are obtained.

] Figure 2 Figure 3 + 1A 51/l Proceedings Supplementary City Book (Haku!'59fl・"41) Month A 1.1-1"11
1 Commissioner of the Japan Patent Office 1 Case description 1981 Patent Application No. 35732 2
Name of the invention Air Rainyo 7 iiJ An energy recovery device that generates energy due to the density difference between water and air during water purification of rivers, lakes, marshes, and seawater. device and its mechanism.

3 Relationship with the case of the person making the amendment Patent applicant 5 A brief explanation of the drawing to be amended (1i explanation, what do all the drawings represent? 6 Contents of the amendment as shown in the attached sheet)

[Brief explanation of drawings]

Fig. 1 is a conceptual diagram of the present invention A side view of the installation of the device Fig. 2 is a sectional view of the energy recovery device Fig. 3 is an enlarged view of the blade of the energy recovery device National policy Fig. 4 is a side view of the energy recovery device and the remanufacturing section Figure 5 is a cross-sectional view of the energy regeneration mechanism (1) l-j
Connoble nosor and air feed device (2) Vi air pipe (3) Filter for preventing mud benders (4) is a vibrator that guides water and foam (5) Air opening port (6) is Kuhi / (7) is Tahi / Nosuke (8) and (9) are the turbine shaft stand and the bearing (10) are the energy recovery device and the remanufacturing unit (11td low pressure compressor (12) is the low pressure air pipe (+alVi remanufactured air sending pipe ( 14) is the regulator (15) that reuses the released energy (Eve (AIH water wheel FB for energy recovery) is the blade attached to the water wheel and the storage part for the blade (C1 is the shaft of the water wheel/gear) Shaft (I)) is a gear for energy transmission

Claims (1)

[Claims] (1) A recovery device for the chemical waste generated during underwater aeration, a device for increasing purification capacity through energy reuse, and a combined mechanism thereof.