TW201907800A - Jet aerator - Google Patents

Abstract

A jet aerator is used to solve the problem of conventional jet aerators having difficulties in maintaining the dissolved oxygen by splashing action. The jet aerator includes a jet member, a guiding member and an injection member. The jet member includes a jet tube having an end coupled with a cover and another end having a fluid opening. An acceleration space is formed between the jet tube and the cover. The guiding member includes a guiding tube having an outlet end extending into the acceleration space. A guiding gap is formed between the outlet end and the fluid opening of the jet tube. The injection member extends through a tubular wall of the jet tube and intercommunicates with the acceleration space. A fluid is filled through the injection member into the acceleration space and turns into a relatively high speed/low pressure condition at the guiding gap, creating a pressure difference at the outlet end to guide the fluid to pass therethrough.

Description

   Jet aerator   

The invention relates to a jet aerator, in particular to a jet aerator that can increase the amount of dissolved oxygen in water in a breeding pond.

Aquaculture ponds usually raise high-density fish, shrimp and shellfish, and a large number of aquaculture must metabolize a large amount of oxygen to survive. If the dissolved oxygen in the water in the aquaculture pond is lower than the consistent dead water oxygen threshold, it will lead to suffocation and death of the aquaculture. General control methods Yes: Control the feeding amount to avoid excessive spoilage of feed to affect water quality, limit livestock density to reduce oxygen consumption, regularly remove silt at the bottom of the pond, replace new water, and use aerators, etc., but face a sudden decrease in oxygen content. Conditions, only using an aerator can immediately and effectively improve dissolved oxygen conditions.

The conventional aerator is a waterwheel type aerator. By rotating the blades, the water surface generates bubbles and increases the amount of dissolved oxygen in the pool water. However, the area affected by the waterwheel water is limited to the surroundings of the blades and only acts on the blades. The surface of the pond water cannot fully increase the amount of dissolved oxygen in the pond water, nor can it disturb the bottom circulation of the breeding pond.

Another conventional aerator is an inflatable aerator. The air is pressurized through an air tube at the bottom of the immersion tank by an air compressor, and then air bubbles are expelled from the air holes in the air tube. The air bubbles rise from the bottom of the tank. Part of the gas can be dissolved in water and has the effect of disturbing the pool water. Depending on the setting range of the air duct and the increase of the power of the air compressor, the amount of dissolved oxygen in the pool water can be increased in a wide area, and the convection circulation of the bottom of the pool and the water surface can be improved. However, the energy consumption of air compressors is huge, and the installation and maintenance of air ducts are not easy to implement.

In addition, the above-mentioned aerator's air dissolves in water at a low ratio, and most of the air bubbles float on the water surface and dissipate into the atmosphere. Once the aerator stops operating, the dissolved water content will fade away with time, forcing the aerator to have to last Operational.

In view of this, the conventional aerator still needs to be improved.

In order to solve the above-mentioned problem, the object of the present invention is to provide a jet aerator, which entrains a large number of fine air bubbles through a high-speed water flow, so that the air bubbles diffuse and dissolve in the direction of the water flow.

A secondary object of the present invention is to provide a jet aerator, which can mix medicine or nutrient solution into a water stream, and can be widely dispersed in pool water during the jet process.

The jet aerator of the present invention comprises: a jet element, the jet element has a jet tube and a cover, the cover is coupled to one end of the jet tube, and an acceleration space is formed between the jet tube and the cover. The other end of the spout tube is provided with a first-level crossing; a flow guiding element having a flow guiding tube, one inlet end of the flow guiding tube communicates with the atmosphere, and the other outlet end passes through the cover and extends through the cover. Acceleration space, a guide gap is formed between the outlet end and the flow channel opening of the jet pipe; and an injection element having a first injection pipe and a second injection pipe, the first injection pipe and the Each of the second injection pipes penetrates the wall of the jet pipe and communicates with the acceleration space, and a check valve is provided inside the second injection pipe.

According to this, the jet aerator of the present invention generates high-speed and low-pressure water flow by compressing the flow channel space, forming a pressure difference, and sucking in air and the water flow to form a water flow containing a large number of fine air bubbles, so that the air bubbles diffuse and dissolve in the direction of the water flow. To increase the proportion and range of air dissolved in water in the breeding pond; the pharmaceutical or nutrient solution is introduced into the spray pipe through the injection pipe with a check valve, which can be widely dispersed in the pool water during the spray process, saving work time and labor; The direction, position and flow can be adjusted. The aerobic operation also generates a circulation function to optimize the water quality of the culture. There is no underwater rotating mechanism to avoid harming the culture.

Wherein, the cover body has a flow guide hole and a first joint portion, the flow guide hole is disposed at the center of the cover body, and the first connection portion is annularly disposed at an inner edge of the flow guide hole. In this way, the flow guiding element can enter the acceleration space through the flow guiding hole, and has the effect of limiting the position of the flow guiding element.

The acceleration space is a conical space at one end of the flow passage opening, and the acceleration space is connected to the flow passage opening at the smallest cross-sectional area. In this way, the fluid can gradually accelerate to the maximum value at the flow channel opening, which has the effect of increasing the flow rate and stably reducing the pressure.

Wherein, the flow guiding element has a regulating member in a hollow tube shape, and a second coupling portion is provided on the outer edge of the regulating member, and the second coupling portion is combined with the first coupling portion. In this way, the flow guiding tube is sleeved on the spraying tube through the adjusting member, and has the effect of limiting the relative position of the flow guiding tube and the spraying tube.

Wherein, the first injection pipe is offset from the central axis of the spray pipe. In this way, the pressurized fluid enters the acceleration space through the first injection pipe, and a forced vortex can be formed to travel along the pipe wall of the jet pipe, which has the effect of evenly spreading the fluid in the axial direction and filling the acceleration space.

Wherein, the first injection pipe penetrates the jet pipe obliquely, and the injection port is biased toward the direction of the flow passage. In this way, a vortex flowing axially toward the mouth of the flow channel can be formed, and the effect of dispersing the impact of the pressurized fluid on the wall of the nozzle tube can be formed.

In addition, the present invention also provides another jet aerator, including: a jet element, the jet element has a jet tube and a cover, the cover is connected to one end of the jet tube, and the jet tube and the cover are An acceleration space is formed between the nozzles, and the first end of the jet tube is provided with a first-level crossing; a flow guiding element, the flow guiding element has a shunt tube, the shunt tube has an inlet end, a closed end, and several through holes, and the closed end Passing through the cover body and extending through the acceleration space, a guide gap is formed between the closed end and the flow passage opening of the jet pipe, and a plurality of through-hole rings are arranged on the pipe wall of the shunt pipe to communicate with the shunt pipe The interior and the acceleration space; and an injection element having a first injection tube and a second injection tube, each of the first injection tube and the second injection tube penetrating the wall of the jet tube communicates with the In the acceleration space, a check valve is provided inside the second injection pipe.

1‧‧‧Spray element

11‧‧‧Spout tube

111‧‧‧flow channel

12‧‧‧ cover

121‧‧‧ Diversion holes

122‧‧‧ the first joint

13‧‧‧Acceleration space

2‧‧‧ Diversion element

21‧‧‧ Diversion tube

211‧‧‧Entrance

212‧‧‧Export

22‧‧‧Adjustment

221‧‧‧ the second joint

23‧‧‧Diversion gap

24‧‧‧ Diverter

241‧‧‧Entrance

242‧‧‧ closed end

243‧‧‧through hole

3‧‧‧ injection components

31‧‧‧first injection tube

32‧‧‧Second injection tube

321‧‧‧Check valve

P1‧‧‧The first pressurizing system

P2‧‧‧Second pressure system

P3‧‧‧Third pressure system

O‧‧‧center axis

Fig. 1: An exploded perspective view of the structure of the first embodiment of the present invention.

FIG. 2 is a combined sectional view of the first embodiment of the present invention.

Figure 3: Sectional view taken along line A-A in Figure 2.

Figure 4: Schematic diagram of fluid backstop along line B-B in Figure 2.

Figure 5: Schematic diagram of fluid antegrade along section B-B in Figure 2.

Fig. 6: An adjustment situation diagram as shown in Fig. 2.

Fig. 7: Another installation situation of the first injection pipe as shown in Fig. 2.

FIG. 8 is a combined sectional view of a second embodiment of the present invention.

In order to make the above and other objects, features, and advantages of the present invention more comprehensible, the following describes the preferred embodiments of the present invention and the accompanying drawings in detail, as follows: Please refer to FIG. A first embodiment of the jet aerator of the present invention, the jet aerator includes a jet element 1, a diversion element 2, and an injection element 3. The jet element 1 is a hollow tube for the diversion element 2 to penetrate and extend. The injection element 3 is fixed on the pipe wall of the jet element 1.

The spray element 1 has a spray pipe 11 and a cover 12. The cover 12 is coupled to one end of the spray pipe 11. An acceleration space 13 is formed between the spray pipe 11 and the cover 12. The other end is provided with a first-level channel 111, and the acceleration space 13 is a conical space at one end of the flow channel opening 111. The acceleration space 13 is connected to the flow channel opening 111 at the smallest cross-sectional area; The inner edge of the flow hole 121 is provided with a first joint portion 122.

One end of the flow guiding element 2 penetrates the flow guiding hole 121 and is then accommodated in the acceleration space 13. The flow guiding element 2 has a flow guiding tube 21 and an adjusting member 22. The flow guiding tube 21 and the adjusting member 22 It is a hollow tube, and the guide tube 21 is movably fitted into the adjusting member 22; a second joint portion 221 is provided on the outer edge of the adjusting member 22, and the second joint portion 221 can be connected with the cover. The first coupling portion 122 of the body 12 is coupled, and the coupling type is not limited. In this embodiment, the first coupling portion 122 and the second coupling portion 221 are coupled by threads.

Please refer to FIGS. 2 and 6, one end of the flow guide tube 21 is connected to an inlet end 211 to communicate with the atmosphere or a first pressurizing system P1, and the other end of the flow guide tube 21 is connected to an outlet end 212 into the adjusting member 22 and There is a flow guide gap 23 between the exit end 212 and the flow passage opening 111 of the spray pipe 11 penetrating into the acceleration space 13 extending into the interior of the flow jet element 1. Among them, the inner edge of the flow guide hole 121 and the adjusting member The outer edge of 22 preferably surrounds a tapered space, and the combined direction end is smaller than the loosened direction end, and the tapered space of the flow guide hole 121 is slightly smaller than the tapered space of the adjusting member 22, and the adjusting member 22 can be tight. Socketed to the diversion hole 121, the inner diameter of the adjusting member 22 is slightly reduced to tighten the diversion tube 21; when the adjusting member 22 is loosened from the diversion hole 121, The inner diameter is slightly loose, so that the guide tube 21 can slide on the adjusting member 22 to adjust the relative position of the guide tube 21 and the runner opening 111, and the cross-sectional size of the guide gap 23 can be changed.

Please refer to FIGS. 2 and 3, the injection element 3 has a first injection tube 31, the first injection tube 31 is a hollow tube, one end of the first injection tube 31 is connected to a second pressure system P2, and the other end The penetrating wall of the jet pipe 11 communicates with the acceleration space 13. The first injection pipe 31 is preferably offset from the central axis O of the jet pipe 11, so that the pressurized fluid of the second pressurizing system P2 passes through the first injection. When the tube 31 enters the acceleration space 13, a forced vortex can be formed, and the fluid travels along the tube wall of the jet tube 11, and can evenly diffuse in the axial direction to fill the acceleration space 13.

Please refer to FIGS. 2, 4 and 5. The injection element 3 has a second injection tube 32. The second injection tube 32 is a hollow tube. One end of the second injection tube 32 is connected to a third pressurizing system P3. The other end penetrates the wall of the jet pipe 11 to communicate with the acceleration space 13. A check valve 321 is provided inside the second injection pipe 32 to allow the pressurized fluid of the third pressurizing system P3 to pass through the second injection pipe. 32 enters the acceleration space 13, and when the second injection pipe 32 is not connected to the third pressurizing system P3 or the third pressurizing system P3 stops working, the check valve 321 prevents the fluid from flowing backward from the acceleration space 13 to This second injection pipe 32 is outside. The second injection pipe 32 can be filled with a medicament or a nutrient solution as required, and cooperates with the pressurized fluid of the first injection pipe 31 to form a forced vortex, so that the medicament or the nutrient solution and the pressurized fluid can be inside the acceleration space 13. mixing.

Referring to FIG. 2, according to the structure of the first embodiment of the jet aerator of the present invention, the acceleration space 13 inside the jet element 1 can be filled with liquid by the first injection pipe 31 and the deflector 21 The inlet end 211 introduces air, and the outlet end 212 extends through the acceleration space 13. Due to the closure of the cover body 12 and the flow guiding element 2 and the pressure of the second pressure system P2, the liquid inside the acceleration space 13 can only pass through the flow path opening 111 and the flow guiding tube 21 The diversion gap 23 flows out. From the mass continuity, it can be known that the liquid flow rate per unit time is a constant value, that is, the product of the liquid velocity and the cross-sectional area of the liquid is constant and inversely proportional to each other. There is a relatively maximum liquid flow velocity, and according to Bernoulli's principle, it can be known that the highest flow velocity is at the lowest pressure of any horizontal flowing fluid, so the outlet end 212 of the diversion tube 21 adjacent to the diversion gap 23 can be obtained A reduced pressure creates a pressure difference with the atmospheric pressure at the inlet end 211, and pushes air through the deflector 21, and after mixing with the liquid flowing out of the deflection gap 23, the dissolved gas is ejected from the channel opening 111 Jet.

Please refer to FIG. 6. According to the foregoing structure, when the diversion tube 21 is adjusted to be away from the flow passage opening 111, the cross-sectional area of the diversion gap 23 can be increased, and the liquid passes through the flow at a relatively slow flow rate. The deflection gap 23 makes the pressure of the outlet end 212 relatively increase, and the pressure difference between the inlet end 211 and the outlet end 212 of the flow guide tube 21 relatively decreases, resulting in a decrease in the air flow rate through the flow guide tube 21, The flow rate of the liquid passing through the diversion gap 23 does not change, resulting in a decrease in the proportion of air sprayed from the flow channel opening 111.

Referring to FIG. 7, the first injection pipe 31 of the injection element 3 penetrates the wall of the jet pipe 11 at an inclined angle, so that when the fluid enters the acceleration space 13 through the first injection pipe 31, the fluid has a The component of the flow direction to the flow channel opening 111 and a component of the flow direction along the tube wall of the spray tube 11 can thus form a vortex flowing axially toward the flow channel opening 111 and disperse the pressurized fluid to the tube wall of the spray tube 11 Shock. When the fluid is naturally injected into the jet pipe 11 without being pressurized, the secondary flow component causes the fluid to lack sufficient kinetic energy to form a vortex along the pipe wall of the jet pipe 11, so the changed design is applicable to the second pressurizing system P2 to accelerate the fluid at high pressure. injection.

Please refer to FIG. 8, which is the second embodiment of the jet aerator according to the present invention. The second embodiment of the present invention is substantially the same as the first embodiment described above. The main difference is that the second embodiment of the present invention has A shunt tube 24; the flow guiding element 2 of this embodiment has an adjusting member 22, a flow guiding gap 23, and a shunt tube 24, and the structure of the adjusting member 22 and the flow guiding gap 23 is substantially the same as the first embodiment described above For example, only the shunt pipe 24 will be described in detail below. The shunt pipe 24 is provided with an inlet end 241, a closed end 242, and a plurality of through holes 243. The inlet end 241 communicates with a first pressurizing system P1, and the other end of the shunt pipe 24 forms the closed end 242. The shunt pipe 24 passes through the adjusting member 22, and the closed end 242 extends through the acceleration space 13. The guide gap 23 is formed between the closed end 242 and the flow passage opening 111 of the spray pipe 11, and the through holes are formed. 243 is arranged on the pipe wall of the shunt pipe 24 to communicate with the interior of the shunt pipe 24 and the acceleration space 13.

When the liquid is pressurized by the first pressurizing system P1, the liquid can enter the acceleration space 13 through the through holes 243; the pressurized gas of the second pressurizing system P2 enters the acceleration space through the first injection pipe 31. 13; The third pressurizing system P3 pressurizes the medicament or nutrient solution into the acceleration space 13 through the second injection pipe 32, so that the liquid is evenly dispersed and the air and the medicament or nutrient solution are sufficiently mixed, and then ejected from the flow channel opening 111 Contains gas and functional jets.

In summary, the jet aerator of the present invention generates a high-speed and low-pressure water flow by compressing the flow channel space, forming a pressure difference, and sucking in air and water flow to form a water flow containing a large number of fine air bubbles, which causes the air bubbles to diffuse in the direction of the water flow. Dissolve, increase the proportion and range of air dissolved water in the breeding pond. In addition, the medicine or nutrient solution can be introduced into the spray pipe through an injection pipe with a check valve, which can be widely dispersed in the pool water during the spray process, which can save work time and labor. In addition, the direction, position and flow rate of the jet stream can be adjusted, so that the aeration operation can produce a circulation function at the same time to optimize the aquaculture water quality, and it is not necessary to set an underwater rotating mechanism, which can avoid harm to the aquaculture.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications to the above embodiments without departing from the spirit and scope of the present invention. The technical scope protected by the invention, so the scope of protection of the present invention shall be determined by the scope of the appended patent application.

Claims (10)

    A jet aerator includes: a jet element, the jet element has a jet tube and a cover, the cover is coupled to one end of the jet tube, and an acceleration space is formed between the jet tube and the cover. The other end of the spout tube is provided with a first-level crossing; a flow guiding element having a flow guiding tube, one inlet end of which is connected to the atmosphere, and the other outlet end passes through the cover and extends through the acceleration space. A diversion gap is formed between the outlet end and the flow passage opening of the jet pipe; and an injection element having a first injection pipe and a second injection pipe, the first injection pipe and the second The injection pipes respectively penetrate the wall of the jet pipe and communicate with the acceleration space, and a check valve is provided inside the second injection pipe.         The jet aerator according to item 1 of the scope of patent application, wherein the cover body has a flow guide hole and a first joint portion, the flow guide hole is provided at the center of the cover body, and the first connection portion is circumferentially arranged. At the inner edge of the diversion hole.         The jet aerator described in item 1 of the scope of the patent application, wherein the acceleration space is a conical space at one end of the flow passage opening, and the acceleration space is connected to the flow passage opening at the smallest cross-sectional area.         The jet aerator according to item 1 or 2 of the scope of patent application, wherein the flow guiding element has a regulating member in a hollow tube shape, and a second joint portion is provided on the outer edge of the regulating member, and the second joint The portion is combined with the first coupling portion.         The jet aerator according to item 1 of the scope of patent application, wherein the first injection pipe is offset from a central axis of the jet pipe.         The jet aerator according to item 1 of the scope of the patent application, wherein the first injection pipe penetrates the jet pipe obliquely, and the injection port is biased toward the flow channel mouth.         A jet aerator includes: a jet element, the jet element has a jet tube and a cover, the cover is coupled to one end of the jet tube, and an acceleration space is formed between the jet tube and the cover. The other end of the spout tube is provided with a first-level crossing; a flow guiding element having a diverter tube having an inlet end, a closed end, and a plurality of through holes, and the closed end passes through the cover and extends through In the acceleration space, a diversion gap is formed between the closed end and the flow passage opening of the spray pipe, and a plurality of through-hole rings are provided on the pipe wall of the shunt pipe to communicate the interior of the shunt pipe with the acceleration space; and An injection element having a first injection tube and a second injection tube, each of the first injection tube and the second injection tube penetrating a wall of the jet tube and communicating with the acceleration space, the second injection Inside the tube is a check valve.         The jet aerator according to item 7 of the scope of the patent application, wherein the cover body has a flow guide hole and a first joint portion, the flow guide hole is provided at the center of the cover body, and the first connection portion is circumferentially arranged. At the inner edge of the diversion hole.         The jet aerator according to item 7 of the scope of the patent application, wherein the acceleration space is a conical space at one end of the flow passage opening, and the acceleration space is connected to the flow passage opening at the smallest cross-sectional area.         The jet aerator according to item 7 or 8 of the scope of the patent application, wherein the flow guiding element has a regulating member in a hollow tube shape, and a second joint portion is provided on the outer edge of the regulating member, and the second joint The portion is combined with the first coupling portion.