The aeration pipe

Abstract

The invention comprising a three-section pipe with a hollow interior and open ends on both sides, welded together into a single piece. The head-section pipe can be elongated or contracted along its axis out into the area of the head-section stack pipe. The head of the head-section pipe is provided with a water diffusion nozzle alongside the wall, which has been drilled with holes all around it in order to drain the water out and to serve as a support for the head-section pipe so it may float over the water. The central pipe is provided with the instalment of an aeration nozzle. The very end of the central pipe is hollow with an open end that can be elongated or contracted along its axis out into the area of the stack-pipe end, which is capable of drawing up wastewater. Its purpose is to provide aeration with an increase in the amount of oxygen that can be dissolved into the wastewater. It serves to conserve energy with an equivalent need for air by aerating in the range of 1.5 to 50 cubic meters of air per hour.

Description

[0001] THE AERATION PIPE

[0002] Field of the Invention

[0003] Engineering specifically relating to an aeration pipe.

[0004] Background of the Invention

[0005] Wastewater is a consequence of the various uses of water in human activity, such as the household use of water for bathing, washing clothes and cleaning, the industrial use of water for production and agricultural use. The wastewater that results from these activities often contain a number of contaminants such as organic substance, inorganic substance, bacteria, virus, and other substances that can inflict deleterious consequences to the environment and human health. The fresh water now in use in the world is in limited supply, consisting of only 2.5% of all the water on earth. Most of the fresh water is confined to colored glaciers and streams, leaving only a small amount that would be accessible and could be put to any really good use. Because of the increasing demand for fresh water from the growth of the population and industrial development, there is a need for efficient wastewater management to maintain fresh-water sources.

[0006] Wastewater management based on decomposition of organic substances in the wastewater of the environment requires the use of more oxygen than there is currently available. This situation can be fixed by employing the method of aerating the water. There are several variations of this method. They include the following:

[0007] 1. Aeration by passage of air through the surface of the water by use of a stirrer or water diffuser to generate movement of the water on the surface, allowing air from the atmosphere to mix into the water

[0008] 2. Pressurized aeration, forcing the passage of air into the water through the action of a pump or a system with a preset pressure setting

[0009] Aeration can take place through the use of aerated foam, which is formed by pumping air down into the water through a nozzle or diffuser, thus creating a small amount of aerated foam that allows an increase in the amount of oxygen being dissolved into the water. It is accomplished by diffusing air or oxygen into the water in the form of tiny aerated-foam bubbles that help to improve ability of the oxygen to dissolve and to become fully dispersed throughout the water.

[0010] The water aeration method constitutes an efficient method of wastewater treatment method and water-quality management which allows an increase in the amount of oxygen being dissolved into the water and maintains biological balance in the water. After conducting a search on patent database, some patents were found with the objective of wastewater treatment by aqueous aeration. For example:

[0011] A Chinese patent publication number CN102616950A, with an invention title “Device for improving water quality of laminated mixed oxygenated water,” referred to as device for water quality improvement by layered aeration, consists of a pipe installed vertically in the water, an aeration chamber, an air-containment chamber, an air release tube, a navigation pad, a perforated plate, a small-hole aerator, power-free automated alternator and a mounting base. The aeration chamber and the air containment chamber are installed in the center of the cistern. The small-hole aerator is installed near the bottom of the cistern and integrates aeration at both a full-layer level and an equal-temperature layer with efficient compatibility. An adjustable-length pipe is installed between the aeration chamber and the small-hole aerator to increase the stability of all of the devices.

[0012] A Chinese patent publication number CN103922493B, with an invention title “Waterpumping aeration device for improving water quality of deepwater type water reservoir,” mentions that this device enables aqueous aeration of the cisterns or deepwater lakes. This device consists of various interconnected parts from top to bottom in the water. Among them are the water-release knob, a sliding level adjustment, non-sliding parts, the main aeration device and a submerged mounting platform, which serve as methods of water quality improvement. They function by circulating the water from the lower to the higher levels and thereby creating a vertical blend of water, which aids in the reduction of internal contaminants and promotion of the growth of algae and thus improves water quality in the cisterns and lakes. In addition, the equipment has been designed to respond automatically to changes in sea level and has good durability against the impact of water.

[0013] A Chinese patent publication number CN102603087A, with the invention title “Waterpumping aeration device for improving water quality of deepwater type water reservoir,” referred to as water quality improvement device for pumping and aeration of deepwater cisterns includes an exit knob, a sliding adjustment part, a non-sliding part, the main aerator and a connected sunken part, respectively, from top to bottom. The level- adjustment section consists of several pieces of straight pipe connected together in a way that allows them to slide so they can adjust their length according to the water level. The lowermost piece can be fastened to the non-sliding part. The uppermost part is connected to the water-release knob. It can be seen that the prior invention has a patent claim pertaining to a water quality improvement device for cisterns and lakes at differing depths within the components. The purpose is for use in wastewater treatment through aqueous aeration. It has an objective that is similar to this invention.

[0014] As regards this invention, it has been fashioned to include an aeration pipe that subdivides into three sections: a head-section pipe, a central pipe and an end pipe, which are joined together into a single component. The head-section and the end pipe can be adjusted to a higher size according to the water level. In addition, the head-section pipe is fashioned with a water diffusion nozzle with water drainage holes drilled into its side, while the central pipe is equipped with an aeration nozzle connected to an air- supply pipe.

[0015] Summary of the Invention

[0016] The aeration pipe according to this invention comprises three sections with hollow interiors with open ends on both sides. They are jointed together into a single piece, with the head-section pipe capable of extension or retraction along the axis of the head-section stack pipe. Also, the head of the head-section pipe has been fashioned with a diffuser nozzle with holes drilled on the sides of the wall to drain the water out and support the head-section pipe to float over the water. The central pipe has been fashioned with the installation of an aeration nozzle. Finally, the end pipe is a hollow pipe with open ends capable of extension or retraction along the axis of the end-section stack pipe, which is capable of drawing up the wastewater to increase the amount of oxygen dissolved into the wastewater, resulting in saving of energy for a given amount of oxygen. It is used with aeration within the range of 1.5 to 50 cubic meters per hour.

[0017] The objective of this invention is the use of an aeration nozzle to assist in the treatment of wastewater for water quality improvement by wastewater aeration with an aeration nozzle. With regard to the end pipe, which is set within the stack-pipe section, the diameter in its expanded section will progressively decrease, or narrow down, from the lower pipe. The lower pipe, in its capacity for deep immersion in the wastewater, will further increase the possibility of bringing the water or the sediment at the bottom of the tank, which still has treatment potential, back up to intermix with the air. Doing so would make advantageous use of the water or sediment at the bottom of the tank. It would also make the circulation of the water in the system more efficient, which is helpful in making wastewater treatment more efficient. Also, when the water has passed into the mid-section to increase the amount of oxygen and flows upward to the upper pipe, it uses the principle of circulating water up from the bottom, instead of from the oxygenated top, and flows outward to the top, where the water diffuser has holes for the water to flow through. It thus causes the water to come into contact with the air at the top again in order to increase the amount of oxygen, which, through this method, helps to conserve energy and makes the wastewater treatment more efficient.

[0018] Brief Description of the Drawings

[0019] Figure 1 illustrates one embodiment of an aeration pipe component.

[0020] Figure 2 illustrates one embodiment of the operation of the aeration pipe.

[0021] Detailed Description of the Invention

[0022] As shown in Figure 1, the aeration pipe comprises the head- section pipe (100), the center pipe (200) and the end pipe (300). These pipes are featured as hollow open-end pipes connected together into a single piece. The mounting positions are set at the upper ends of the end pipe (300). They are connected together at the bottom of the center pipe (200); and at the top end of the center pipe (200), they are connected together at the lower end of the head-section pipe (100), where the diameter of the head-section pipe (100) is smaller than the center pipe (200) and the end pipe (300).

[0023] The head-section pipe (100), which is located at the topmost position, is hollow with an open end on either side. It has a pipe that expands outward from its open end all around to facilitate the outflow of the water mixed with air to the outside. In the event that the aeration pipe has been assembled in a way that allows it to be removed and recombined between the bottom of the headsection pipe (100) and the top of the center pipe (200), a location has been provided where it can be recombined by mounting it in place; wherein the length of the head-section pipe (100) is preferably in the range of 1 to 1.5 meters and capable of elongating outward along its axis, with 1 to 2.5 meters from the water diffusion nozzle (101) to the aeration nozzle (202), by use of at least two pipes, namely the first head- section stack pipe (103) and the second head- section stack pipe (104). The first head- section stack pipe (103) and the second head-section stack pipe (104) are fashioned in form of hollow open-end pipes such that the edges of the pipes extend outward, locking onto the first head-section stack pipe (103) and the second head-section stack pipe (104) as an additional pipe, and in a form that they can be removed and replaced; wherein the diameter of the first head-section stack pipe (103) has been set to be narrower than the second head-section stack pipe (104) to establish a range of height for the pipes that would be suitable toward the intermixing of air and water. Adjusting a suitable rate of aeration affects operation and facilitates the pumping up of aerated water and the diffusion of the water so that it can gush out efficiently. Generally, the holes in the water diffusion nozzle (101) are set as high as 50 to 100 millimeters in diameter.

[0024] Around the head-section pipe (100), the water diffusion nozzle (101) is installed, covering the closed pipe head. The water diffusion nozzle (101) is fashioned in form of either a cylinder or a cube, whichever may be suitable, with a diameter preferably wider than the diameter of the open end at the top of the head-section pipe (100). At its side, at least two holes with diameters within 1 to 2 inches are provided. The holes are uniformly spaced from each other around the water diffusion nozzle (101) so that the direction of the diffusion sprayer can be set more efficiently. In addition, the mouth of the water diffusion nozzle (101) resembles a bottleneck that tapers down into the pipe. This water diffusion nozzle (101), which controls the direction of the flow of water through the aeration process and then lifts itself up to the top of the head-section pipe (100), is set in a direction such that the flow is toward the water diffusion nozzle (101). The pressure from the water rising up from the pipe causes the water diffusion nozzle itself (101) to rise, under the pressure of the water. The end of the water diffusion nozzle (101) is in the form of a bottleneck that tapers down into the head-section pipe (100), causing the water diffusion nozzle (101) to float along the out-flowing water. When water flows out from small holes, the water comes into contact with the air on its surface once again, thus helping to increase the amount of oxygen in the water one additional time. Also, when the water is no longer being pumped and aerated, the water diffusion nozzle (101) will then sink in the absence of any water pressure.

[0025] This aeration pipe further consists of an air production system. Its function is to produce air, which is then added into the wastewater in the aeration pipe for the purpose of wastewater treatment. It is installed from above the water surface.

[0026] The central pipe (200) is positioned halfway between the head-section pipe (100) and the end pipe (300), where the aeration nozzle (202) is installed within that area. Its function is to release air from the air production system which is located on top, sending air passing through the aeration pipe (201) and blending it with the water inside the pipe; wherein the aeration pipe is preferably set to output its air in the form of a fine bubble foam. The air it supplies can then be stirred and mixed into the water to foster the growth of certain microbes for the treatment of contaminants in the water. An appropriate installation point would be at a depth of 1 to 2.5 meters from the water level; wherein this aeration nozzle (202) has been installed at least one location in the attachment area, which is in the form of a hollow pipe, comprising a section that projects outward from the inner wall of the central pipe (200), it has been found suitable for installation near or at the end of the central pipe (200).

[0027] The aeration nozzle (202) is connected to the aeration pipe (201) in the form of that it protrudes out from the central pipe and the other end of the aeration pipe (201), as if it were connected to the aerator, which is situated at the top. When the aerator sends air to the aeration nozzle (202), it creates tiny air bubbles in the wastewater inside the aeration pipe (201) which blend into the water to achieve the purpose of wastewater treatment, thus raising the dissolved oxygen (DO) value in the water. Water with increased amounts of oxygen then moves toward the head-section pipe (100) and exits through the holes in the water diffusion nozzle (101). The holes are small and are designed to be situated at 50 to 100 milliliters over the surface of the water. This design thus helps to supply an additional increase in the amount of oxygen going into the water in order to regenerate aeration pressure from the impact upon the surface of the water.

[0028] In the event that the aeration pipe (201) has been assembled in a way that allows it to be removed and recombined between the bottom of the central pipe (200) and the top of the end pipe (300), a location has been provided where it can be recombined by mounting it in place.

[0029] The center pipe (200) is preferably set to have a diameter of 200 to 600 millimeters, which is greater than the diameter of the head- section pipe (100). It will also have a diameter 1 to 2 inches greater than the aeration nozzle (202) so that the wastewater can conveniently flow through the aeration nozzle.

[0030] The end pipe (300), which is situated in the lowermost position, has the function of intaking the water from the bottom, which then flows into it. It has been fashioned as a hollow stack pipe capable of elongating and contracting along its axis, and has a diameter of 300 to 600 millimeters. The pipe edge at its very end extends outward, locking onto another stack pipe for connection as a means of extending the pipe length. The end pipe (300), which is a stack pipe close to center pipe, has a diameter narrower than the stack pipe connected to it so that it can then be shrunken and stacked onto it.

[0031] The invention of this aeration pipe stipulates that the pipe be installed at a higher position above the surface of the tank or well at an appropriate ratio, as based on the design of those who have been selected for its use.

[0032] According to Figure 2, it shows the direction of the flow of the wastewater in the aeration pipe for wastewater treatment as based on this invention. The wastewater thus flows into the end pipe (300), which is extended by connection to a minimum of at least one stack pipe, so that it will then have an appropriate length for the water level and an open end at the bottom so that the water can then conveniently flow into the end pipe (300). At the same time, the air production system will produce air and send it through the aeration pipe (201), which is installed parallel to the aeration pipe and extends up to the aeration nozzle (202). It has the function of adding air to the wastewater by continually releasing air in the form of tiny air bubbles from the aeration nozzle (202), thus helping the water to come into contact with the air and blend into it in the tank. It thus serves as a means of increasing the opportunity for more air to make contact with the water. Water that has passed through the aeration process will flow from the center pipe (200) to the head- section pipe (100) by the force of buoyancy and flow outward from the open end at the top of aeration pipe. It will exit this open end and continue to the outside area. The presence of the water diffusion nozzle (101) helps to control the flow direction of the water so that it will gush out on the side of aeration pipe through the holes of this water diffusion nozzle (101). When the water that has passed through the aeration process flows out, the wastewater at the bottom will flow upward, instead, and when it has reached the center pipe (200), air will be continually added to the wastewater from the aeration nozzle (202), changing the water passing through aeration process and flowing out to the open end at the top of the head- section pipe (100). This process occurs continuously. If the air production system is turned on, it is to be operated by means of the aeration pipe.

[0033] Any modifications may be clearly understood and doable by those skilled in the art. These may fall under the scope and intention of this invention as presented in the appended claims.

[0034] Best Mode of the Invention

[0035] As described in the Detailed Description of the Invention

Claims

Claims1. An aeration pipe, comprising an aeration pipe (201), an aeration nozzle (202) and a hollow pipe with open ends on both sides wherein it is characterized in that a pipe subdivides into three sections, namely, a minimum of at least one head-section pipe (100), a central pipe (200) and a minimum of at least one end pipe (300); the head-section pipe (100) is hollow and open-ended, comprising at least a first head-section stack pipe (103) and a second head-section stack pipe (104), which have the function of elongating or contracting parallel to the axis, and are used to dissolve water mixed with the air in the head-section pipe (100), in the first head-section stack pipe (103) and the second head-section stack pipe (104), it is provided with accessories within the head-section stack pipe (103) and the second head-section stack pipe with the purpose of increasing the efficiency of dissolving oxygen; the head-section pipe (100) is fitted with a water diffusion nozzle (101), covering the head-section pipe and closing it; the water diffusion nozzle (101) is featured with a minimum of two holes on the side equally spaced around the water diffusion nozzle (101) and a diameter greater than that of the head-section pipe (100); the head-section pipe (100) comprising the first head-section stack pipe (103) and the second head-section stack pipe (104) with a diameter smaller than that of the central pipe (200) and the end pipe (300); the central pipe (200) is provided with the instalment of an aeration nozzle (202), which includes an aeration pipe (201) extending outward from the central pipe (200) where the central pipe is connected to the aerator at the top in order to mix the air with the water by drawing the water through the end pipe (300) within the limited inner space of the central pipe (200), thus causing an increase in the air- in-water dissolution rate; the end pipe (300) comprising at least one of a hollow, open-ended stack pipe with a diameter of 3 to 6 meters; at the edge of this pipe around its end has the appearance of jutting out, locking onto an additional ending stack pipe as a means of adding length to the pipe and to serve as a pathway for drawing wastewater from the mouth of the end pipe (300) of the aeration pipe.

2. The aeration pipe according to claim 1, wherein the water diffusion nozzle (101) contains holes with a diameter of 1 to 2 inches.

3. The aeration pipe according to any one of claims 1 to 2, wherein the water diffusion nozzle (101) is fashioned into the form of a bottleneck that narrows down in a direction parallel to the pipe, in the event that the water diffusion nozzle (101) should lift upward from an increase in water and air pressure, and in the event that the water diffusion nozzle (101) should move downward following a decrease in water and air pressure.

4. The aeration pipe according to claim 1, wherein the water diffusion nozzle (101) to the aeration nozzle (202) has a length of 1 to 2.5 meters.

5. The aeration pipe according to claim 1, wherein in the first head- section stack pipe (103) and the second head-section stack pipe (104) are fashioned so that the edge of the pipe extends outward from its end, locking onto the first head-section stack pipe (103) and the second head-section stack pipe (104), so that the pipes will not loosen away from each other.

6. The aeration pipe according to any one of claims 1 or 6, wherein in the first head-section stack pipe (103) is fashioned to have a narrower diameter than the second head-section stack pipe (104) so that the second head-section stack pipe (104) can then be retracted to clamp over the first head- section stack pipe (103).

7. The aeration pipe according to any one of claims 1 or 8, wherein the end pipe (300), which is fashioned as a stack pipe close to the central pipe with a narrower diameter than the stack pipe connected to it, so that the pipe connected to it can be retracted to clamp over it.

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