Aeration cyclone offshore algae control system

Abstract

The utility model discloses an aeration cyclone offshore algae control system, which belongs to the technical field of offshore prevention and control of blue-green algae, and comprises an air compressor, a water tank, a heat exchanger, a cooling circulation device and a plurality of aeration cyclone mechanisms, each aeration cyclone mechanism comprises an aeration main pipe, a horizontal aeration branch pipe and a plurality of vertical aeration branch pipes, according to the utility model, active offshore algae control is realized in the time period of stronger illumination and higher air temperature, and the'gas stripping 'effect generated by the rising of bubbles is utilized, so that the Reynolds number is increased, the turbulence degree of a water body is increased, and the aeration effect of the water body is improved. Meanwhile, the normal migration rule of the blue-green algae can be destroyed due to the occurrence of the rotational flow, so that the blue-green algae cannot normally perform photosynthesis, and water layers at different temperatures can be sufficiently mixed due to the rotational flow, so that the water temperature of the surface water body is greatly reduced, and the growth of the blue-green algae is effectively controlled.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of offshore blue algae prevention and control, and specifically is an aerated cyclone offshore algae control system. Background Art

[0002] Cyanobacteria like to live in water bodies that are rich in organic matter and have a high pH value. Therefore, the nitrogen and phosphorus content and their existence forms in the water body restrict the growth of cyanobacteria to a certain extent. It is generally believed internationally that the concentrations at which eutrophication occurs are when the total nitrogen in lake water reaches 0.2 mg / L and the total phosphorus reaches 0.02 mg / L. When the nitrogen and phosphorus concentrations in the water body increase significantly, it provides favorable conditions for the rapid reproduction of cyanobacteria. However, after analyzing the "Surface Water Environmental Quality Standards" (GB3838-2002), it can be seen that for waters of the same functional category, the total phosphorus standard limits of rivers and lakes vary greatly, about 2-4 times. Under the same or even higher nitrogen and phosphorus concentrations, the cases of cyanobacteria outbreaks in rivers are far less than those in lakes. It can be seen that the degree of water turbulence has a decisive influence on the growth and reproduction of cyanobacteria, and cyanobacteria prefer static water bodies.

[0003] Cyanobacteria like light, which is mainly manifested in that the rate of algae photosynthesis changes with light intensity, and different types of algae have different sensitivities to light of different wavelengths and intensities. Cyanobacteria can obtain the required light energy by adjusting their own buoyancy (relying on the synthesis and rupture of pseudovacuoles and the synthesis and consumption of intracellular ballast) and migrating vertically in the water body, which gives them a clear advantage in competing with other algae. Cyanobacteria like high temperatures, and the suitable temperature is 25-35°C. When the water temperature is below 30°C and other conditions remain unchanged, the growth rate of algae is positively correlated with temperature, and the most suitable temperature is 28°C. When the temperature is below 15°C or above 30°C, it is not conducive to the growth of cyanobacteria. However, studies have shown that some cyanobacteria can grow in a water temperature range of 25-55°C or even higher. It has been tested that the surface water temperature of lakes in summer can exceed 28°C. In summary, cyanobacteria like still water, strong light and high temperature, so they are very easy to erupt in lakes or reservoirs in summer.

[0004] At present, the domestic response measures to cyanobacteria blooms are mainly based on passive nearshore prevention and control, including raising water levels, setting up special cyanobacteria fences, filtration, manual salvage, mechanical salvage and supporting algae-water separation facilities. These measures have a certain effect on low-level cyanobacteria blooms, but it is difficult to have a decisive impact on cyanobacteria blooms at the level of Taihu Lake, and it is also difficult to effectively control the accumulation and decay of cyanobacteria blooms in the coastal zone. There are also some cyanobacteria bloom prevention and control technologies that focus on source control, including plastic floating board shading, high-speed oxygenation or air exposure through water purification ships (or aerators) to accelerate the longitudinal and lateral movement of water bodies, ultrasound, chemical methods, biological methods, etc., but these technologies have obvious defects, such as high construction costs, difficulty in management, poor practicality, etc., and are rarely used on a large scale in practice.

[0005] Based on this, we analyzed the habits of cyanobacteria and the causes of algae blooms and developed an aerated cyclone offshore prevention and control system that can economically and effectively deal with cyanobacteria blooms. It can be applied to lakes (reservoirs) with slow water flow and operates during periods of strong light and high temperature. Utility Model Content

[0006] The technical solution of the utility model is aimed at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technologies. Specifically, the utility model mainly provides an aerated cyclone offshore algae control system to solve the technical problems raised in the above background technology that currently for lakes (reservoirs) with slow water flow, passive near-shore prevention and control is generally adopted, and active offshore algae control is impossible, resulting in low economic benefits and algae control efficiency.

[0007] The technical solution adopted by the utility model to solve the above technical problems is:

[0008] An aeration cyclone offshore algae control system comprises an air compressor, a water tank, a heat exchanger, a cooling circulation device and a plurality of aeration cyclone mechanisms, wherein the heat exchanger is located in the water tank, the cooling circulation device is installed on the side wall of the water tank, each of the aeration cyclone mechanisms comprises an aeration main pipe, a horizontal aeration branch pipe and a plurality of vertical aeration branch pipes, and the aeration main pipe, the horizontal aeration branch pipe and the plurality of vertical aeration branch pipes are connected by pipe fittings, the vertical aeration branch pipes are linearly distributed on the horizontal aeration branch pipe at equal intervals, a connecting hose is provided between each two adjacent aeration main pipes, and an aeration hole is provided at the upper end of each of the vertical aeration branch pipes, a base frame is provided below the aeration main pipe, two pneumatic telescopic rods are provided on the base frame, and a clamp ring is provided at the output end of each of the pneumatic telescopic rods, and the clamp ring is provided on the horizontal aeration branch pipe.

[0009] Preferably, the heat exchanger comprises an outer frame, a spiral heat exchange tube and a bent pipe, the spiral heat exchange tube is located inside the outer frame, and the upper end and the lower end of the bent pipe are respectively connected to the spiral heat exchange tube and the corresponding connecting hose.

[0010] Preferably, the output end of the air compressor is connected to a first pipe fitting via a pipeline, and solenoid valves are provided at two interface positions of the first pipe fitting.

[0011] Preferably, the cooling circulation device includes a water pump, a water inlet pipe and a water outlet pipe. The water pump is installed at the interface position of the water tank, the upper end of the water inlet pipe is connected to the input end of the water pump, the lower end of the water inlet pipe is provided with a porous filter cartridge, and the upper end of the water outlet pipe is installed at the interface position of the side wall of the water tank.

[0012] Preferably, two counterweights are threadedly connected to the lower side of the base frame.

[0013] Preferably, a second pipe is commonly provided at the interface of two pneumatic telescopic rods on the same horizontal aeration branch pipe, and a plurality of second pipes are commonly connected to a side pipe.

[0014] Preferably, the two interface positions of the first pipe are respectively connected to the side pipe and the spiral heat exchange tube through pipelines.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The utility model realizes active offshore algae control during periods of strong light and high temperature by means of the air compressor, the first pipe, the aeration main pipe, the horizontal aeration branch pipe, the vertical aeration branch pipe and the aeration holes, and utilizes the "air lift" effect generated by the rising bubbles to induce the surrounding water to flow upward and form a vortex, thereby increasing the Reynolds number and the turbulence of the water body, thereby destroying the requirements of cyanobacteria for static water bodies. At the same time, the emergence of the vortex will destroy the normal migration law of cyanobacteria, making it unable to fully utilize light energy and thus unable to carry out photosynthesis normally. In addition, the vortex will fully mix water layers of different temperatures, greatly reduce the water temperature of the surface water body, effectively control the growth of cyanobacteria, and be more suitable for areas with slow water flow such as lakes and reservoirs. Compared with the existing offshore algae control technology, the technology has the advantages of low construction cost, low operating cost, simple operation, convenient management, etc., and has high application value.

[0017] (2) The utility model enables each aeration cyclone mechanism to be stably placed on the lake bottom through the mutual cooperation between the base frame and the counterweight block, so that each vertical aeration branch pipe can be vertically upward to adapt to the uneven placement area of ​​the lake bottom. The side pipe, the second pipe fitting, the first pipe fitting, the solenoid valve, the pneumatic telescopic rod and the clamping ring can be used to deal with the raised areas and sunken areas of the lake bottom, so that the aeration holes can be located near the blue algae, thereby increasing the influence of the cyclone and improving universal applicability.

[0018] (3) The utility model realizes the pumping of low-temperature water from the lake bottom into the water tank by means of the water pump, water inlet pipe, water outlet pipe, outer frame, spiral heat exchange tube and bent pipe. The water in the water tank circulates to cool the high-pressure gas in the spiral heat exchange tube, thus avoiding the influence of high temperature in summer. The temperature of the air released by the air compressor will further rise (temperature rise of about 3-4°C), thus preventing the high-temperature air from raising the water temperature and promoting the growth of blue algae. The porous filter cartridge can prevent the sludge from the lake bottom from entering the water inlet pipe and causing pipe blockage. At the same time, with the cooperation of the water outlet pipe and the water inlet pipe, the geographical advantage of being close to the lake is utilized to optimize the cooling structure, reduce costs, and further make the water flow, further disturb the water body and inhibit the growth of blue algae.

[0019] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the decomposition of the aeration cyclone mechanism of the utility model;

[0022] Figure 3 It is a schematic diagram of the air compressor, water tank and heat exchanger of the utility model.

[0023] Description of the drawings: 1. Air compressor; 11. First pipe fitting; 12. Solenoid valve; 2. Water tank; 3. Heat exchanger; 31. Outer frame; 32. Spiral heat exchange tube; 33. Bent pipe; 4. Cooling circulation device; 41. Water pump; 42. Water inlet pipe; 43. Water outlet pipe; 44. Porous filter cartridge; 5. Aeration cyclone mechanism; 51. Aeration main pipe; 52. Horizontal aeration branch pipe; 53. Vertical aeration branch pipe; 531. Aeration hole; 54. Base frame; 55. Pneumatic telescopic rod; 56. Clamp; 57. Second pipe fitting; 58. Counterweight; 6. Connecting hose; 7. Side pipe. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] Example 1, please refer to the attached Figure 1-3As shown, an aeration cyclone offshore algae control system includes an air compressor 1, a water tank 2, a heat exchanger 3, a cooling circulation device 4 and a plurality of aeration cyclone mechanisms 5, wherein the heat exchanger 3 is located in the water tank 2, the cooling circulation device 4 is installed on the side wall of the water tank 2, and each of the aeration cyclone mechanisms 5 includes an aeration main pipe 51, a horizontal aeration branch pipe 52 and a plurality of vertical aeration branch pipes 53, and the aeration main pipe 51, the horizontal aeration branch pipe 52 and the plurality of vertical aeration branch pipes 53 are connected by pipe fittings. Then, the vertical aeration branch pipes 53 are linearly distributed at equal intervals on the horizontal aeration branch pipe 52, a connecting hose 6 is provided between every two adjacent aeration main pipes 51, and an aeration hole 531 is provided at the upper end of each of the vertical aeration branch pipes 53, a base frame 54 is provided below the aeration main pipe 51, two pneumatic telescopic rods 55 are provided on the base frame 54, and a clamping ring 56 is provided at the output end of each of the pneumatic telescopic rods 55, and the clamping ring 56 is provided on the horizontal aeration branch pipe 52.

[0028] Through the above structure, active offshore algae control is achieved during periods of strong light and high temperature. The "air lift" effect generated by the rising bubbles is used to induce the surrounding water to flow upward and form a vortex, which increases the Reynolds number and the turbulence of the water body, thereby destroying the requirements of cyanobacteria for static water bodies. At the same time, the emergence of vortices will destroy the normal migration pattern of cyanobacteria, making it unable to fully utilize light energy and thus unable to photosynthesize normally. The vortex will fully mix water layers of different temperatures, greatly reduce the water temperature of the surface water body, effectively control the growth of cyanobacteria, and is better suitable for areas with slow water flow such as lakes and reservoirs. Compared with existing offshore algae control technologies, this technology has the advantages of low construction cost, low operating cost, simple operation, convenient management, etc., and has high application value.

[0029] The specific operation is as follows: first, multiple aeration cyclone mechanisms 5 are placed on the bottom of the lake, so that the vertical aeration branch pipe 53 is vertically upward, and the counterweight block 58 is placed stably in contact with the bottom of the lake. Then, the heat exchanger 3 is placed in the water tank 2, and the two ends of the spiral heat exchange tube 32 are respectively connected to the upper end of the bent pipe 33 and the interface of the first pipe fitting 11. Then, the solenoid valve 12 at the interface position of the first pipe fitting 11 connected to the side pipe 7 is opened, and the solenoid valve 12 at the interface position of another first pipe fitting 11 is closed at the same time. Then, the air compressor 1 is turned on, and the high-pressure gas enters the pneumatic telescopic rod 55 through the first pipe fitting 11, the side pipe 7 and the second pipe fitting 57 in turn, thereby pushing the multiple vertical aeration branch pipes 53 on the horizontal aeration branch pipe 52 to move upward, so that the aeration branch pipe 52 is moved upward. The air hole 531 is located near the blue algae, and then the water pump 41 is turned on. The colder water at the bottom of the lake is pumped into the water tank 2 through the water inlet pipe 42, taking away the heat of the high-pressure air in the spiral heat exchange tube 32, and then the water with higher temperature in the water tank 2 is discharged into the lake through the water outlet pipe 43, so that the water in the water tank 2 can circulate, and then the solenoid valve 12 at the interface position of the first pipe fitting 11 connected to the side pipe 7 is closed, and the solenoid valve 12 at the interface position of another first pipe fitting 11 is opened, and then the air compressor 1 is turned on again, and the high-pressure gas passes through the first pipe fitting 11, the spiral heat exchange tube 32, the bent pipe 33 and the connecting hose 6 in turn, and then passes through the horizontal aeration branch pipe 52 and the vertical aeration branch pipe 53 and is ejected from the aeration hole 531 to disturb the water body.

[0030] Example 2, please refer to the attached Figure 1 and 2 As shown, two counterweights 58 are threadedly connected to the lower side of the base frame 54, and the counterweights 58 are used to stably place the base frame 54 on the lake bottom. A second pipe fitting 57 is commonly provided at the interface of the two pneumatic telescopic rods 55 on the same horizontal aeration branch pipe 52, and multiple second pipe fittings 57 are commonly connected to the side pipe 7. A solenoid valve 12 can be installed at the interface of the two pneumatic telescopic rods 55 on the same horizontal aeration branch pipe 52 to control the height of a single horizontal aeration branch pipe 52, which can better adapt to the height of different parts of the lake bottom. The two interface positions of the first pipe fitting 11 are respectively connected to the side pipe 7 and the spiral heat exchange tube 32 through pipelines. Through the mutual cooperation between the side pipe 7 and the second pipe fitting 57, high-pressure gas is introduced into the pneumatic telescopic rod 55 to control the height.

[0031] Example 3, please refer to the attached Figure 1 and 3As shown, the heat exchanger 3 includes an outer frame 31, a spiral heat exchange tube 32 and a bent pipe 33. The spiral heat exchange tube 32 is located in the outer frame 31. The upper end and the lower end of the bent pipe 33 are respectively connected to the spiral heat exchange tube 32 and the corresponding connecting hose 6. Through the spiral structure of the spiral heat exchange tube 32, the contact time with water can be increased in a limited space to improve the cooling effect. The output end of the air compressor 1 is connected to the first pipe fitting 11 through a pipeline. The two interface positions of the first pipe fitting 11 are both provided with solenoid valves 12. Through the two solenoid valves 1 2, it is realized that the high-pressure air is introduced into the pneumatic telescopic rod 55 and the vertical aeration branch pipe 53 respectively in sequence, the cooling circulation device 4 includes a water pump 41, a water inlet pipe 42 and a water outlet pipe 43, the water pump 41 is installed at the interface position of the water tank 2, the upper end of the water inlet pipe 42 is connected to the input end of the water pump 41, the lower end of the water inlet pipe 42 is provided with a porous filter cartridge 44, and the upper end of the water outlet pipe 43 is installed at the interface position of the side wall of the water tank 2, through the porous filter cartridge 44, the lake bottom sludge is prevented from entering the water inlet pipe 42, causing the pipeline to be blocked.

[0032] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An aerated cyclone offshore algae control system, comprising an air compressor (1), a water tank (2), a heat exchanger (3), a cooling circulation device (4) and a plurality of aerated cyclone mechanisms (5), characterized in that The heat exchanger (3) is located in the water tank (2), the cooling circulation device (4) is installed on the side wall of the water tank (2), each of the aeration cyclone mechanisms (5) includes an aeration main pipe (51), a horizontal aeration branch pipe (52) and a plurality of vertical aeration branch pipes (53), and the aeration main pipe (51), the horizontal aeration branch pipe (52) and the plurality of vertical aeration branch pipes (53) are connected by pipe fittings, and the vertical aeration branch pipes (53) are evenly spaced and linearly distributed on the horizontal aeration branch pipe (5 2), a connecting hose (6) is provided between each two adjacent aeration main pipes (51), and an aeration hole (531) is provided at the upper end of each vertical aeration branch pipe (53), a base frame (54) is provided below the aeration main pipe (51), two pneumatic telescopic rods (55) are provided on the base frame (54), and a clamping ring (56) is provided at the output end of each pneumatic telescopic rod (55), and the clamping ring (56) is provided on the horizontal aeration branch pipe (52).

2. The aerated cyclone off-shore algae control system according to claim 1, characterized in that: The heat exchanger (3) comprises an outer frame (31), a spiral heat exchange tube (32) and a bent pipe (33); the spiral heat exchange tube (32) is located inside the outer frame (31); the upper end and the lower end of the bent pipe (33) are respectively connected to the spiral heat exchange tube (32) and the corresponding connecting hose (6).

3. The aerated cyclone off-shore algae control system according to claim 1, characterized in that: The output end of the air compressor (1) is connected to a first pipe member (11) via a pipeline, and two interface positions of the first pipe member (11) are both provided with solenoid valves (12).

4. The aerated cyclone off-shore algae control system according to claim 1, characterized in that: The cooling circulation device (4) comprises a water pump (41), a water inlet pipe (42) and a water outlet pipe (43); the water pump (41) is installed at an interface position of the water tank (2); the upper end of the water inlet pipe (42) is connected to an input end of the water pump (41); the lower end of the water inlet pipe (42) is provided with a porous filter cartridge (44); and the upper end of the water outlet pipe (43) is installed at an interface position of the side wall of the water tank (2).

5. The aerated cyclone off-shore algae control system according to claim 1, characterized in that: Two counterweights (58) are threadedly connected to the lower side of the base frame (54).

6. The aerated cyclone off-shore algae control system according to claim 1, characterized in that: A second pipe member (57) is commonly provided at the interface of two pneumatic telescopic rods (55) on the same horizontal aeration branch pipe (52), and a plurality of second pipe members (57) are commonly connected to a side pipe (7).

7. The aerated cyclone off-shore algae control system according to claim 3, characterized in that: The two interface positions of the first pipe member (11) are respectively connected to the side pipe (7) and the spiral heat exchange tube (32) through pipelines.

Images