CN1748490A - Wide angle jet aeration equipment - Google Patents

Abstract

A wide-angle jet aeration device includes at least a pumping device, at least one float device, a height adjustment seat, and at least one jet mother seat. The float device is located outside the pumping device and is connected to the pumping device by a fixed bracket. The height adjustment seat is connected to the pumping device, and the jet mother seat is connected to the top of the height adjustment seat; wherein the bottom surface of the jet mother seat has a taper, and a plurality of flow channels are arranged from the bottom surface to the side periphery, and the flow channel is a gradually shrinking bundle-shaped channel from the water inlet to the water outlet, and a partition plate with different shapes and structures can also be added to increase the variation of the jet form.

Description

Wide angle jet aeration equipment

technical field

The present invention relates to an aeration device, and in particular to a wide-angle jet aeration device.

Background technique

Aquaculture ponds or fish ponds maintain the concentration of dissolved oxygen (DO) through aeration devices to maintain the respiration of aquaculture, aquatic organisms, and microorganisms, which is a necessary factor for stabilizing water quality and maintaining the ecological balance of fish ponds. Microorganisms (decomposers) must absorb dissolved oxygen from water to digest excess organic matter and perform nitrification to convert highly toxic ammonia nitrogen into weakly toxic nitrite nitrogen (NO ₂ ) or nitrate nitrogen (NO ₃ ). Waterwheel, a well-known aeration device, uses a motor to drive an impeller to splash water into the air to increase the contact time and surface area between water and air, so as to achieve the purpose of aeration and increase dissolved oxygen.

Known aerobic treatment tanks of sewage and wastewater treatment plants in the environmental protection industry and chemical industry also need to digest organic matter in water through microorganisms. Most operators use blowers and air pipes to transport air to the ventilation holes of the diffuser at the bottom of the pool, and then release it in the form of small bubbles at the bottom of the pool to increase dissolved oxygen in the water and promote microorganisms to digest organic matter in the water.

In fact, the aeration function of the water wheel and the diffuser is limited and the efficiency is very low. The inventor's research shows that the impeller of the waterwheel can only splash surface or upper layer pool water into the air, the amount of water splashed is limited, the water droplet particles are too large, and the residence time in the air is too short, and the contact time and surface area with the air are not enough. Ideal, and most of the water drops back near the waterwheel. Therefore, the aeration effect of the waterwheel is limited to the water area near the waterwheel, and it is difficult to increase the dissolved oxygen in the bottom pond water.

The aeration device combined with the blower and the diffuser can indeed increase the dissolved oxygen in the water. The smaller the air bubbles in the air diffuser, the larger the contact surface area; and the deeper the pool, the longer the bubbles stay in the water, and the higher the oxygen transfer efficiency. But the smaller the pores, the easier it is for microorganisms and suspended solids to attach to them, causing blockage. In addition, the air density is very small, it is not easy to pressurize, and it consumes a lot of power. The deeper the pool, the smaller the air hole, and the higher the air pressure required, the more power is consumed. In practical applications, the water depth is 3 to 5 meters, and the oxygen transfer efficiency About 10-20%. The blower and diffuser can be used for aerobic treatment tanks with small volume and high concentration of biochemical oxygen demand (BOD)/chemical oxygen demand (COD) (hundreds of ppm); they are not suitable for aquaculture. Because the pond area is large, BOD and COD are not high (10-40ppm), and the water depth is only about 1-2 meters, the air bubbles do not stay in the water long enough, and a large number of diffusers are required, which is not cost-effective.

There are more than 80,000 hectares of fish ponds in Taiwan. Each hectare needs to use 6-12HP water trucks, which run for at least 12 hours a day, taking up considerable power resources; and need to change water 10-20 times a year, pumping about 100,000-300,000 tons of groundwater . Over-pumping of groundwater has caused strata in coastal areas to sink to a cumulative depth of one to three meters. Taiwan is small and densely populated, and its energy is completely dependent on imports. It is necessary to make good use of land and water resources, save energy, and sustainably operate. (The water storage capacity of one hectare fish pond is about 10,000 to 20,000 tons)

Therefore, it is necessary to develop a device that has low cost, low power consumption, high aeration efficiency, and can greatly increase dissolved oxygen in bottom pool water, so as to take into account the economic and environmental protection of fishermen. Existing pumping devices such as water pumps, water pumps, submerged water pumps or submerged water motors have a large water output when the lift is 0.5 to 15 meters (water pressure is 0.05 to 1.5kgf/cm2, wherein the water pressure is 1kgf/cm2 = lift is 10 meters). , but gradually decreases with the increase of water pressure, the overall mechanical efficiency is much higher than that of a waterwheel, but if the working pressure is increased, the water output will decrease sharply, and the mechanical efficiency will decrease.

Contents of the invention

The purpose of the present invention is to provide a wide-angle jet aeration device, mainly using the water inlet to the water outlet of the jet channel as a gradually narrowing channel, so that the large-flow liquid first enters the channel with a large cross-sectional area, and the flow is The channel gradually shrinks to pressurize and accelerate the fluid, and finally sprays from the injection port to form a situation where extremely small water droplets are scattered, thereby achieving the effect of greatly increasing the aeration of the aquaculture water and increasing the dissolved oxygen.

Another object of the present invention is to make the center of gravity of the entire water spray aeration equipment be located below because the pumping device is located under the water surface on the lower side of the buoy device. In this way, the wide-angle jet aeration equipment can achieve self-balancing, and it is not easy to be overturned by strong wind and waves.

Another purpose of the present invention is that the aeration efficiency can be greatly improved, which not only saves electricity, but also prolongs the service life of the culture pond water and reduces the water exchange rate, thus increasing the cost of saving water. effect. In addition, reducing the water consumption and water exchange rate of groundwater indirectly has the advantage of improving the problem of subsidence of the ground; in addition, the present invention is also suitable for indoor aquaculture, such as shrimp, clam, nine-hole, lobster and abalone, etc., for Water quality with high pollution concentration is also very suitable.

In order to achieve the above object, the present invention provides a wide-angle jet aeration device, which includes: a pumping device; at least one buoy device is located on the outside of the pumping device and connected to the pumping device; a height adjustment seat is connected to the The top of the pumping device; and a top spraying female seat correspondingly joined above the height adjustment seat, which is a cover body, wherein the bottom of the top spraying female seat has a taper, and a plurality of flow channels are provided from the bottom surface to be inclined outwards to the side peripheral edge , the flow channel is a shrinking narrow channel from the water inlet to the water outlet.

According to the concept of the present invention, it further includes at least one filter screen with a plurality of filter holes, wherein the filter screen is connected under the water pumping device.

According to the idea of the present invention, the filter holes of the filter screen can be thin at the top and dense at the bottom, or small at the top and large at the bottom.

According to the concept of the present invention, the pumping device is located below the buoy device.

According to the concept of the present invention, the buoy device also includes at least two buoys and two fixing brackets, the buoys are respectively located on opposite sides of the pumping device, and each of the fixing brackets is located at one end of the buoys to connect and fix the buoys. Said buoy.

According to the concept of the present invention, the pumping device is connected with the fixed bracket and fixed under the buoy device.

According to the concept of the present invention, it also includes a partition plate that is mated and connected to the tapered surface of the top injection socket.

According to the concept of the present invention, the dividing plate is provided with a raised line corresponding to the flow channel of the top injection socket.

According to the concept of the present invention, grooves are provided on the dividing plate corresponding to the flow channel of the top injection socket.

According to the concept of the present invention, the cross-sectional area of the water outlet of the top injection socket can be designed in the shape of two layers of grooves.

That is to say, the present invention provides a wide-angle jet aeration equipment, which at least includes: a pumping device; at least one buoy device is located outside the above-mentioned pumping device, wherein the buoy device also includes at least two buoys and two fixed brackets , the buoys are respectively located on opposite sides of the pumping device, fixed and connected to the buoy by a fixed bracket at one end of the buoy, and the pumping device is connected to the fixed bracket; a height adjustment seat is connected to the pumping device, and then continues upward A connecting seat is connected; a spraying female seat is mated and connected on the connecting seat, wherein the bottom surface of the spraying female seat is tapered, and a plurality of flow channels inclined outwards to the side periphery are set from the bottom surface, and the water inlet of the flow channel To the water outlet is a gradually shrinking channel, and it can also be designed to add a partition plate to fit the flow channel of the jet female seat, so that the flow channel remains a channel that gradually shrinks from the water inlet to the water outlet In principle, the partition plate can be designed in different shapes to increase the shape change of the water mist sprayed by the water. In addition, the longer the length of the height adjustment seat, the greater the diffusion force of the sprayed water, which can increase the dissolved oxygen rate, but the length design of the height adjustment seat still needs to be considered according to the size range of the water in the breeding pond. The design of the height of the adjusting seat can increase its air time and improve the aeration efficiency according to the wind speed, the size of the pool and the pressure flow performance curve of the pumping device. Theoretically, the higher the height of the adjustment seat, the longer the air time will be, but the flow rate will be reduced, the particle size will be larger, and the center of the whole device will move upward. The proper height of the adjustment seat is preferably between 0.5 and 1 meter.

Moreover, the connection between the buoy device and the pumping device does not require a fixed bracket, and the buoy device further includes at least one support frame, and the support frame is also used to connect with the pumping device. In addition, the cross-sectional area of the water outlet of the injection base can be designed as a two-layer groove design, and its shape can be changed arbitrarily to extend the spray height and increase the landing point to achieve a wide-angle effect, and the two-layer type can reduce the risk of clogging Possibly; and the additional dividing plate can be designed as a multi-shape change of convex strips or grooves corresponding to the flow channel of the injection female seat, so as to enhance the function of water forming diversion and control the lateral velocity and side spray of the water column, so as to facilitate Dredge the outflow of fine sundries. In addition, the flow channels of the injection base can be set up to be evenly distributed at equal distances, or only a specific angle can be set, such as 90-degree or 180-degree distribution on one side, etc.; The oblique angle can be changed arbitrarily, and the front and rear landing points of the pool water can also be enlarged and changed (adjusted), so as to achieve a substantially wide-angle effect.

The above-mentioned water pumping device is located at the lower side of the buoy device, so that when the wide-angle jet aeration equipment is in operation, the water pumping device is located under the water surface to achieve the effect of self-balancing. In addition, the wide-angle jet aeration equipment of the present invention may not be limited to only one set of jetting female seats, which may be connected upwards with multiple jetting female seats, and the water flow is connected to the uppermost jetting female seat, wherein the uppermost The top surface of the injection base is a cover. In this way, the water output and the wide angle of spraying of the wide-angle jet aeration equipment can be further improved.

Description of drawings

Fig. 1 is a three-dimensional assembled view of a preferred embodiment of the present invention.

Fig. 2 is a three-dimensional system diagram of a preferred embodiment of the present invention.

Fig. 3 is an enlarged perspective view of the first injection socket of the present invention.

Fig. 4 is a combined plan view of a preferred embodiment of the present invention.

Fig. 5 is an enlarged view of the main structure and operation of the preferred embodiment of the present invention.

(a) to (l) of Fig. 6 are top views of various flow channel shapes of the injection base of the present invention.

(a) to (f) of Fig. 7 are enlarged schematic diagrams of various water outlet shapes of the spraying base of the present invention.

Fig. 8 is a three-dimensional assembled view of another embodiment of the present invention.

Wherein, the reference signs are explained as follows:

1- pumping device; 2- filter screen; 3- buoy device; 4- height adjustment seat; 5- connecting seat; 21-filter hole; 31-pontoon; 32-fixed bracket; 33-support frame; 51-flange; 52-flange; 61-inclined surface; 62-flow channel; 63-flange; 71-inclined surface; -runner; 621-water inlet; 622-water outlet; 721-water inlet; 722-water outlet.

Detailed ways

The invention discloses a wide-angle jet aeration device. Please refer to Figure 1 to Figure 4. The wide-angle jet aeration equipment is mainly composed of a pumping device 1, a filter screen 2, a buoy device 3, a height adjustment seat 4, a connecting seat 5, a spraying female seat 6, and a top spraying female seat 7. in:

The pumping device 1 has a flange 11 on the top surface.

The filter screen 2 is connected under the pumping device 1, wherein the filter screen 2 has filter holes 21, and can filter the pumped pool water during the operation of the wide-angle jet aeration equipment, thereby preventing the solid impurities in the pool water from affecting the pumping device 1, it can even prevent solid matter from entering the pumping device 1 and causing the pumping device 1 to be damaged or blocked. In a preferred embodiment of the present invention, the filter holes 21 of the filter screen 2 are evenly distributed, and the distribution of the filter holes 21 can also be designed to be thin at the top and dense at the bottom, and small at the top and large at the bottom, so that it can be preferentially extracted closer to the bottom of the pool. bottom water.

The buoy device 3 is located outside the pumping device 1 , wherein the buoy device 3 is preferably composed of two buoys 31 , and the two buoys 31 are preferably respectively located on opposite sides of the pumping device 1 . The main function of the buoy device 3 is to provide buoyancy, so that the entire wide-angle jet aeration equipment can float on the surface of the pool water, and easily move on the water, and have the effect of changing the installation or spraying position. These two buoys 31 can utilize at least two fixing brackets 32 to fix their relative positions, and the present invention discloses positioning with four fixing brackets 32 in the accompanying drawings; wherein the two fixing brackets 32 on the outside are respectively connected and fixed to the two buoys 31, and the two fixed brackets 32 fixed on the inner side are then engaged with the pumping device 1, so that the pumping device 1 is positioned under the buoy device 3, and the buoy 31 preferably can adopt a hollow plastic pipe with a cover.

The height adjustment seat 4 is joined on the top of the pumping device 1 and is connected with the flange 11. Its length can be considered and designed according to the size of the culture pond water and the distance range of the spraying requirement. The design of the height of the adjusting seat can increase its air time and improve the aeration efficiency according to the wind speed, the size of the pool and the pressure flow performance curve of the pumping device. Theoretically, the higher the height of the adjustment seat, the longer the air time will be, but the flow rate will be reduced, the particle size will be larger, and the center of the whole device will move upward. The proper height of the adjustment seat is preferably between 0.5-1 meter.

The connecting seat 5 is arranged on the top of the height adjusting seat 4 continuously, and it is connected to the height adjusting seat 4 by means of a flange 51 on the bottom surface, and the top surface of the connecting seat 5 is a flange 52 .

The injection female seat 6 joins the top of the connecting seat 5 (see Figures 1, 2, and 4); The flange 52 on the top surface is butted and connected; in addition, the injection base 6 is provided with a plurality of flow channels 62 along the inclined surface 61 from the bottom surface, wherein the flow channels 62 are designed to gradually shrink from the water inlet 621 to the water outlet 622. The constricted flow channel design; in addition, the top surface of the injection base 6 has a flange 63.

The top injection base 7 is located at the top, which is a cover body, and its main structure is the same as that of the injection base 6; see Figure 3, the bottom of which also has a taper, mainly forming an inclined surface 71 from the bottom surface to the outside. Wherein, the inclined surface 71 is connected to the flange 63 on the top surface of the injection base 6; in addition, the top injection base 7 is provided with a plurality of flow channels 72 from the bottom surface along the inclined surface 71, wherein the flow channels 72 are also designed It is designed as a constricted flow channel that gradually narrows from the water inlet 721 to the water outlet 722 to spray.

The feature of the present invention is mainly to use the pumping device 1 to pump the water in the pool through the filter screen 2, and then pass through the height adjustment seat 4 and the connecting seat 5, and then spray the flow channel 62 of the female seat 6 or the flow of the top ejection female seat 7. Road 72 and ejected. Among them, the injection base 6 has the same structural design as the top injection base 7. Taking the injection base 7 as an example, please refer to FIG. The constricted flow channel 72 from 722 is designed so that a large flow of liquid enters the flow channel 72 through a channel with a large cross-sectional area, and then the water is compressed and pressurized by the flow channel 72 due to the shrinkage of the flow channel. The direction-finding velocity component and the diffusion angle can be increased; therefore, the water sprayed from the water outlet 722 can form extremely small water droplets, and the flow channel 72 is designed to be inclined outwards and contracted, so that the flow rate of the water is pressurized When the change occurs when spraying out, the spray diffusion angle can be increased, so that the sprayed water forms extremely small water droplets, so as to increase the contact time and surface area with the air, and effectively achieve the purpose of increasing aeration and increasing dissolved oxygen. In addition, the upward inclination angles of the flow passages of the injection base 6 and the top injection base 7 can be different, the one with a smaller inclination angle can spray a shorter distance, and the one with a larger inclination angle can spray a longer distance.

Another feature of the present invention is because the pumping device 1 of the present invention is a sinking type, and is a tumbler design with a light top and a heavy bottom, that is, the heavy pumping device 1 is located under the water surface, so the entire wide-angle jet exposure The center of gravity of the gas equipment is below the water surface (see also Figure 4). In this way, in conjunction with the buoy device 3 located above the pumping device 1, the wide-angle jet aeration device can achieve self-balancing and will not overturn due to excessive wind and waves.

Another feature of the present invention is that the water outlet 622 of the jetting female seat 6 and the water outlet 722 of the top jetting female seat 7 can be designed with two-layer grooves in cross-sectional area, so that the spraying diffusion angle can be increased and the spraying range can be extended. The advantages of increasing the landing point and spraying range make the spraying angle wide and can take into account all corners and distances, so as to achieve a substantial wide-angle effect, and the water outlet is designed with two layers of grooves so that the compressed water passes through two different sizes of grooves When the notch sprays out, it will produce different spray angles and different landing points, which will expand and change (adjust) the front and rear landing points of the pool water from time to time, and increase the effect of dissolved oxygen. Please refer to Fig. 6 (which is an enlarged view of the partial structure of the junction of the injection base 6 and the top injection base 7 in Fig. 4), the cross-sectional area shapes of the water outlet 622 and the water outlet 722 can be (a) to (d) Square, semi-circular, V-shaped or U-shaped basic types. For the top view of the other basic type, please refer to (a) to (c) in Figure 7, and when the water outlet is in the shape of two layers of grooves, it can be as shown in Figure 6. The basic types (a)~(d) are mixed with each other, as shown in (e)~(i), and the top view of the mixture can be seen in (d)~(f) in Figure 7; of course, as long as the In the present invention, the large-diameter water inlet is gradually narrowed to the flow channel designer of the water outlet, and any change in the shape of the water outlet is within the equivalent scope of the present invention.

Moreover, the invention can be inserted on the inclined surface 61 of the injection base 6 and the inclined surface 71 of the top injection base 7 to connect with it, and the separation plate 8 can Various shapes of convex strips or grooves are provided at the flow channels corresponding to the injection female seats, so that they can be accommodated in the flow channels of the corresponding injection female seats. Among them, the injection female seats can be seen in (j)-(l) of Figure 6 When the seat 7 and the partition plate 8 are connected, the middle partition plate 8 is placed in the flow channel 72 of the injection female seat 7 when it has a convex line, so that the water can divert the flow, which is beneficial to dredge the impurities in the flow channel.

Moreover, the present invention has at least one filter screen 2, and at least one buoyancy device 3, and at least one jet base 6 needs to be provided, which can be increased according to demand. See also Fig. 8, the connection of pumping device 1 and buoy device 3 can change the two fixed brackets 32 on the inside of buoy device 3 to be connected with the mode of support frame 33 and also can. In addition, the distribution of the flow passages 62 of the injection base 6 and the flow passages 72 of the top injection base 7 can be equidistant and even, or only a single specific angle can be used.

The present invention can adjust the pumping device according to the performance curve of the pumping device, the area of the pool, the oxygen demand of the water and other factors, and the spraying distance and water column air time of the present invention are greater than that of the traditional water wheel, and the effect of increasing dissolved oxygen is greater. Therefore, the wide-angle jet aeration equipment of the present invention can save electricity, and because of the improved aeration efficiency, the dissolved oxygen is good, and the service life of the water in the culture pond is prolonged, thereby reducing the number of water changes, and of course it is more economical. Water and cost saving; at the same time, the present invention is very suitable for indoor farming, such as shrimp, clam, nine-hole, lobster and abalone, etc., and is also very suitable for water quality with high pollution concentration.

The advantages of the present invention are: the flow channel of the wide-angle jet aeration equipment is designed in a bundle shape, so that the water is compressed due to the gradual narrowing of the channel to produce pressurization and acceleration effects, so as to increase the spray diffusion angle and extend the spray height , so that the effect of increasing oxygen and improving water quality is remarkable. After a large number of applications, it can save electricity, reduce groundwater pumping, and slow down the rate of subsidence of the ground; increase the breeding density, save land, and increase fishermen's income, which is both economical and environmentally friendly.

Another advantage of the present invention is: the wide-angle jet aeration equipment floats in the water, and the installation position can be easily changed; the structural design is light at the top and heavy at the bottom, and the center of gravity is below the water surface, so it can be self-balanced and will not be damaged by excessive wind and waves. overturned. Moreover, the water outlet can be designed as two layers of grooves to reduce clogging or blocking, which is quite durable.

Another advantage of the present invention is: According to the test results, the cultured animals like to gather in the spray drop area, so this equipment can be used for the cultivation and restoration of aquaculture products with high economic value or weak physique, and the applicability is extremely high. good.

Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the claims.

Claims (10)

1. A wide-angle jet aeration device, comprising: a pumping device; at least one buoyancy device is located outside the pumping device and is connected to the pumping device; a height adjustment seat engaged above the pumping device; and A top injection female seat is correspondingly joined above the height adjustment seat, which is a cover body, wherein the bottom of the top injection female seat has a taper, and a plurality of flow channels are provided from the bottom surface inclined outward to the side peripheral edge, and the flow channels are self-inlet From the water outlet to the water outlet is a gradually narrowing narrow channel. 2. The wide-angle jet aeration device as claimed in claim 1, further comprising at least one filter screen with a plurality of filter holes, wherein the filter screen is connected under the pumping device. 3. The wide-angle jet aeration device according to claim 2, characterized in that the filter holes of the filter screen can be thin at the top and dense at the bottom, or small at the top and large at the bottom. 4. The wide-angle jet aeration device as claimed in claim 1, characterized in that the pumping device is located below the buoy device. 5. The wide-angle jet aeration equipment as claimed in claim 1, wherein the buoy device also includes at least two buoys and two fixed brackets, the buoys are respectively located on opposite sides of the pumping device and each of the buoys The fixing bracket is located at one end of the buoy to connect and fix the buoy. 6. The wide-angle jet aeration device as claimed in claim 5, characterized in that the pumping device is connected to the fixed bracket and fixed below the buoy device. 7. The wide-angle jet aeration device according to claim 1, further comprising a partition plate that is fitly connected to the tapered surface of the top jet female seat. 8. The wide-angle jet aeration device according to claim 7, characterized in that, the partition plate is provided with convex lines corresponding to the flow channel of the top jet base. 9. The wide-angle jet aeration device as claimed in claim 7, characterized in that grooves are provided on the separation plate corresponding to the flow channel of the top jet base. 10. The wide-angle jet aeration device according to claim 1, characterized in that the cross-sectional area of the water outlet of the top jet base can be designed in the shape of two layers of grooves.

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