CN109275615B

CN109275615B - Jet aerator

Info

Publication number: CN109275615B
Application number: CN201710714845.0A
Authority: CN
Inventors: 吴育呈
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-21
Filing date: 2017-08-19
Publication date: 2021-11-02
Anticipated expiration: 2037-08-19
Also published as: CN109275615A; TWI663911B; TW201907800A

Abstract

A jet aerator is used for solving the problem that the water stirring action of the aerator is difficult to maintain the sufficient dissolved oxygen. Which comprises the following steps: a jet flow element, which is provided with a jet flow pipe and a cover body, wherein one end of the jet flow pipe is combined with the cover body, an accelerating space is formed between the jet flow pipe and the cover body, and the other end of the jet flow pipe is provided with a flow passage opening; a flow guiding element, which is provided with a flow guiding pipe, an outlet end of the flow guiding pipe penetrates through the accelerating space, and a flow guiding gap is formed between the outlet end and the flow passage opening of the jet pipe; and the injection element penetrates through the pipe wall of the jet pipe and is communicated with the accelerating space, fluid is introduced into the accelerating space from the injection element, a relatively high-speed low-pressure state is formed in the flow guide gap, and the outlet end generates pressure difference to guide gas to pass through.

Description

Jet aerator

Technical Field

The invention relates to a jet aerator, in particular to a jet aerator which can improve the dissolved oxygen in water of a culture pond.

Background

The water pool for cultivation usually keeps high-density fishes, shrimps and shellfishes in animals, a large amount of cultivation materials must metabolize a large amount of oxygen for survival, if the dissolved oxygen in water of the cultivation pool is lower than consistent dead water dissolved oxygen (oxy gen threshold), the cultivation materials are suffocated and die, and the general control mode comprises the following steps: the feeding amount is controlled to avoid the influence on water quality caused by excessive putrefaction of baits, the livestock density is limited to reduce oxygen consumption, sludge at the bottom of a pond is periodically removed, fresh water is replaced, an aerator is used and the like, but in the case of the condition of sudden reduction of oxygen content, the dissolved oxygen condition can be immediately and effectively improved only by using the aerator.

The well-known aerator is a waterwheel type aerator, bubbles are generated on the water surface by rotating blades, so that the dissolved oxygen in the pond is increased, but the range influenced by the waterwheel pumping is limited by the surrounding of the blades, and the aerator only acts on the surface of the pond, so that the dissolved oxygen of the pond water cannot be comprehensively improved, and the bottom layer circulation of a culture pond cannot be stirred.

Another known aerator is an inflatable aerator, which uses an air compressor to pressurize air to pass through an air pipe immersed in the bottom of the tank, and then discharges bubbles through a plurality of air holes on the air pipe, wherein in the process of rising the bubbles from the bottom of the tank, part of the air can be dissolved into water and has the effect of disturbing the water in the tank.

The oxygen increasing machine has low proportion of air dissolved in water, most of bubbles are dissipated in the atmosphere after floating on the water surface, and once the oxygen increasing machine stops working, the content of the dissolved air is removed along with time, so that the oxygen increasing machine is forced to continuously run for a long time.

In view of the above, there is a need for an improved aerator.

Disclosure of Invention

In order to solve the above problems, the present invention provides a jet aerator, which uses a high-speed water flow to entrain a large amount of micro-bubbles, so that the bubbles are diffused and dissolved in the water flow direction, and the micro-bubbles can increase the proportion of air dissolved in water.

The second purpose of the invention is to provide a jet aerator, which can mix the medicament or nutrient solution into the water flow and can be widely dispersed in the water in the pool in the jet process.

The jet aerator of the invention comprises: a jet flow element, which is provided with a jet flow pipe and a cover body, wherein the cover body is combined with one end of the jet flow pipe, an accelerating space is formed between the jet flow pipe and the cover body, and the other end of the jet flow pipe is provided with a flow passage opening; a flow guiding element, which has a flow guiding pipe, one inlet end of the flow guiding pipe is communicated with the atmosphere, the other outlet end passes through the cover body and extends into the accelerating space, and a flow guiding gap is formed between the outlet end and the flow passage opening of the jet flow pipe; and the injection element is provided with a first injection pipe and a second injection pipe, the first injection pipe and the second injection pipe respectively penetrate through the pipe wall of the jet pipe and are communicated with the accelerating space, and a check valve is arranged in the second injection pipe.

Therefore, the jet flow aerator generates high-speed low-pressure water flow by compressing the runner space, forms pressure difference to suck air and mix the water flow to form water flow containing a large amount of micro bubbles, so that the bubbles are diffused and dissolved in the water flow direction, and the proportion and the range of the air dissolved in the water in the culture pond are improved; the medicament or nutrient solution is introduced into the jet flow pipe through the injection pipe with the check valve, and can be dispersed in the pool water in a large range in the jet flow process, so that the working time and labor are saved; the direction, position and flow of the jet flow can be adjusted, the oxygenation work can generate a circulation function to optimize the culture water quality, and the rotating mechanism is rotated without water, so that the cultured objects can be prevented from being damaged.

The cover body is provided with a flow guide hole and a first combining part, the flow guide hole is arranged in the center of the cover body, and the first combining part is annularly arranged on the inner edge of the flow guide hole. Therefore, the flow guide element can penetrate through the flow guide hole to enter the acceleration space, and the effect of limiting the position of the flow guide element is achieved.

The accelerating space is a conical space at one end of the runner port, and the smallest sectional area of the accelerating space is connected with the runner port. Therefore, the fluid can be gradually accelerated to the maximum at the flow passage opening, and the effects of improving the flow speed and stably reducing the pressure are achieved.

The flow guiding element is provided with an adjusting piece which is in a hollow tubular shape, a second combining part is annularly arranged on the outer edge of the adjusting piece, and the second combining part is combined with the first combining part. Therefore, the flow guide pipe is sleeved with the jet pipe through the adjusting piece, and the effect of limiting the relative position of the flow guide pipe and the jet pipe is achieved.

Wherein the first injection pipe is deviated from the central axis of the jet pipe. Therefore, the pressurized fluid enters the accelerating space through the first injection pipe, a forced vortex can be formed to advance along the pipe wall of the jet pipe, and the effect of enabling the fluid to be uniformly diffused in the axial direction and filling the accelerating space is achieved.

Wherein, the first injection pipe penetrates the jet pipe in an inclined way, and the injection port is deviated to the direction of the runner port. Thus, a vortex which advances towards the axial direction of the runner port can be formed, and the effect of dispersing the impact of the pressurized fluid on the pipe wall of the jet pipe is achieved.

In addition, the present invention provides another jet aerator, comprising: a jet flow element, which is provided with a jet flow pipe and a cover body, wherein the cover body is combined with one end of the jet flow pipe, an accelerating space is formed between the jet flow pipe and the cover body, and the other end of the jet flow pipe is provided with a flow passage opening; a diversion element, the diversion element has a diversion pipe, the diversion pipe has an inlet end, a closed end and several through holes, the closed end passes through the cover and stretches into the accelerating space, a diversion gap is formed between the closed end and the flow passage opening of the jet pipe, the several through holes are arranged around the pipe wall of the diversion pipe, and communicate the inside of the diversion pipe and the accelerating space; and the injection element is provided with a first injection pipe and a second injection pipe, the first injection pipe and the second injection pipe respectively penetrate through the pipe wall of the jet pipe and are communicated with the accelerating space, and a check valve is arranged in the second injection pipe.

Drawings

FIG. 1: an exploded perspective view of a first embodiment of the present invention.

FIG. 2: a combined cross-sectional view of a first embodiment of the invention.

FIG. 3: a cross-sectional view taken along line a-a of fig. 2.

FIG. 4: the fluid check is schematically shown along the section of line B-B in FIG. 2.

FIG. 5: the cross-section along line B-B of fig. 2 is a schematic flow-forward diagram.

FIG. 6: as shown in the adjustment diagram of fig. 2.

FIG. 7: as shown in fig. 2, another arrangement of the first injection pipe.

FIG. 8: a combined cross-sectional view of a second embodiment of the invention.

[ reference numerals ]

1 jet element

11 jet pipe 111 runner port

12 diversion hole of cover body 121

122 first coupling part 13 acceleration space

2 flow guiding element

21 inlet end of draft tube 211

212 outlet end

22 second joint part of adjusting part 221

23 diversion gap 24 diversion pipe

241 inlet end 242 closed end

243 via hole

3 injection element

31 first injection pipe 32 second injection pipe

321 check valve

P1 first pressurization system P2 second pressurization system

P3 third pressurized system O center shaft.

Detailed Description

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail as follows:

referring to fig. 1, a jet aerator according to a first embodiment of the present invention includes a jet element 1, a flow guiding element 2 and an injection element 3, wherein the jet element 1 is a hollow tube for the flow guiding element 2 to pass through and fix, and the injection element 3 is disposed through a wall of the jet element 1.

The jet flow element 1 has a jet flow pipe 11 and a cover body 12, the cover body 12 is combined with one end of the jet flow pipe 11, an acceleration space 13 is formed between the jet flow pipe 11 and the cover body 12, a flow passage opening 111 is arranged at the other end of the jet flow pipe 11, the acceleration space 13 is in a conical space at one end of the flow passage opening 111, and the minimum section area of the acceleration space 13 is connected with the flow passage opening 111; a flow guiding hole 121 is formed in the center of the cover 12, and a first combining portion 122 is formed around the inner edge of the flow guiding hole 121.

One end of the diversion element 2 penetrates the diversion hole 121 and is accommodated in the acceleration space 13, the diversion element 2 has a diversion tube 21 and an adjusting piece 22, the diversion tube 21 and the adjusting piece 22 are hollow tubular, the diversion tube 21 is movably fitted and sleeved in the adjusting piece 22; the outer edge of the adjusting member 22 is provided with a second combining portion 221, the second combining portion 221 can be combined with the first combining portion 122 of the cover 12, the combination type is not limited, in this embodiment, the first combining portion 122 and the second combining portion 221 are combined by screw threads.

Referring to fig. 2 and fig. 6, one end of the draft tube 21 is an inlet end 211 capable of communicating with the atmosphere or a first pressurization system P1, the other end of the draft tube 21 is an outlet end 212 sleeved into the adjusting member 22 and extending into the acceleration space 13 inside the jet flow element 1, and a draft gap 23 is formed between the outlet end 212 and the flow channel opening 111 of the jet flow tube 11; wherein, the inner edge of the diversion hole 121 and the outer edge of the adjusting piece 22 preferably surround to form a conical space, and the combining direction end is smaller than the releasing direction end, and the conical space of the diversion hole 121 is slightly smaller than the conical space of the adjusting piece 22, so that the adjusting piece 22 can be tightly sleeved in the diversion hole 121, the inner diameter of the adjusting piece 22 is slightly contracted to fasten the diversion pipe 21 and cannot move; when the adjusting member 22 is disengaged from the guiding hole 121, the inner diameter of the adjusting member 22 is slightly loose, so that the guiding tube 21 can slide on the adjusting member 22 to adjust the relative position of the guiding tube 21 and the flow passage opening 111, thereby changing the cross-sectional size of the guiding gap 23.

Referring to fig. 2 and 3, the injection member 3 has a first injection pipe 31, the first injection pipe 31 is hollow, one end of the first injection pipe 31 is connected to a second pressurization system P2, and the other end penetrates through the pipe wall of the jet pipe 11 to be connected to the acceleration space 13, the first injection pipe 31 is preferably deviated from the central axis O of the jet pipe 11, so that when the pressurized fluid of the second pressurization system P2 enters the acceleration space 13 through the first injection pipe 31, a forced vortex can be formed, and the fluid travels along the pipe wall of the jet pipe 11, and can be uniformly diffused axially to fill the acceleration space 13.

Referring to fig. 2, 4 and 5, the injection element 3 has a second injection pipe 32, the second injection pipe 32 is hollow, one end of the second injection pipe 32 is connected to a third pressurization system P3, the other end penetrates through the pipe wall of the jet pipe 11 to be connected to the acceleration space 13, a check valve 321 is disposed inside the second injection pipe 32, so that the pressurized fluid of the third pressurization system P3 enters the acceleration space 13 through the second injection pipe 32, and when the second injection pipe 32 is not connected to the third pressurization system P3 or the third pressurization system P3 stops working, the check valve 321 can prevent the fluid from flowing backward from the acceleration space 13 to the outside of the second injection pipe 32. The second injection pipe 32 can be used to inject a medicament or a nutrient solution according to the requirement, and the pressurized fluid of the first injection pipe 31 is used to form a forced vortex, so that the medicament or the nutrient solution and the pressurized fluid can be mixed in the acceleration space 13.

Referring to fig. 2, according to the structure of the first embodiment of the jet aerator of the present invention, the accelerating space 13 inside the jet element 1 can be filled with liquid from the first injecting pipe 31, and the inlet end 211 of the draft tube 21 introduces air, and the outlet end 212 penetrates the accelerating space 13. Due to the sealing of the cover 12 and the guide element 2, and the pressurization of the second pressurization system P2, the liquid in the acceleration space 13 can only flow out through the diversion gap 23 between the flow passage opening 111 and the diversion pipe 21, the liquid flow in the unit time is a fixed value according to the quality continuity, that is, the product of the liquid flow velocity and the liquid passing cross-sectional area is constant and inversely proportional to each other, so that the diversion gap 23 with the smallest cross-sectional area has the relatively largest liquid flow velocity, and Bernoulli's law can tell that the highest flow velocity exists at the lowest pressure position of any horizontal flowing fluid, so that the outlet end 212 of the diversion pipe 21 adjacent to the diversion gap 23 can obtain a reduced pressure to generate a pressure difference with the atmospheric pressure of the inlet end 211, the air is pushed through the draft tube 21, mixed with the liquid flowing out of the draft gap 23, and then jetted out of the flow channel opening 111.

Referring to fig. 6, according to the above structure, when the flow guiding tube 21 is adjusted to be away from the flow passage opening 111, the cross-sectional area of the flow guiding gap 23 is increased, so that the liquid passes through the flow guiding gap 23 at a relatively slow flow speed, the pressure at the outlet end 212 is relatively increased, the pressure difference between the inlet end 211 and the outlet end 212 of the flow guiding tube 21 is relatively decreased, the air flow passing through the flow guiding tube 21 is decreased, and the liquid flow passing through the flow guiding gap 23 is not changed, so that the air ratio of the jet flow at the flow passage opening 111 is decreased.

Referring to fig. 7, the first injection pipe 31 of the injection element 3 penetrates through the pipe 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 flow direction component toward the flow passage opening 111 and a flow direction component along the pipe wall of the jet pipe 11, thereby forming a vortex that advances axially toward the flow passage opening 111 and dispersing the impact of the pressurized fluid on the pipe wall of the jet pipe 11. When the fluid is naturally injected into the nozzle 11 without pressurization, the two flow direction components make the fluid lack enough kinetic energy to form vortex along the wall of the nozzle 11, so the design is adapted to the second pressurization system P2 to accelerate the fluid injection at high pressure.

Referring to fig. 8, a jet aerator according to a second embodiment of the present invention is shown, which is substantially the same as the first embodiment, and mainly has the following differences: the second embodiment of the present invention has a shunt tube 24; the flow guiding device 2 of the present embodiment has an adjusting member 22, a flow guiding gap 23 and a flow dividing pipe 24, and the structure of the adjusting member 22 and the flow guiding gap 23 is substantially the same as that of the first embodiment, so only the flow dividing pipe 24 will be described in detail below. The dividing tube 24 has an inlet end 241, a closed end 242 and a plurality of through holes 243, the inlet end 241 is connected to a first pressurization system P1, the closed end 242 is formed at the other end of the dividing tube 24, the dividing tube 24 is disposed through the adjusting member 22, the closed end 242 extends through the acceleration space 13, the flow guiding gap 23 is formed between the closed end 242 and the flow channel opening 111 of the jet tube 11, and the plurality of through holes 243 are annularly disposed on the tube wall of the dividing tube 24 to connect the inside of the dividing tube 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 plurality of through holes 243; the second pressurization system P2 pressurized gas enters the acceleration space 13 through the first injection pipe 31; the third pressurizing system P3 pressurizes the medicine or nutrient solution and enters the accelerating space 13 through the second injection pipe 32, so that the liquid is uniformly sprayed and fully mixed with air and the medicine or nutrient solution, and a functional jet stream containing gas is sprayed from the flow passage opening 111.

In summary, the jet aerator of the present invention generates high-speed low-pressure water flow by compressing the flow channel space, forms a pressure difference to suck air and mix the water flow, so as to form a water flow containing a large amount of micro bubbles, so that the bubbles are diffused and dissolved in the water flow direction, thereby increasing the air-water dissolution ratio and range of the culture pond. And the medicament or nutrient solution can be introduced into the jet pipe through the injection pipe with the check valve, can be dispersed in the pool water in a large range in the jet process, and can save the working time and labor. The direction, position and flow of the jet flow can be adjusted, so that the aeration work can generate a circulation function to optimize the culture water quality, and an underwater rotating mechanism is not needed to be arranged, so that the cultured objects can be prevented from being damaged.

Claims

1. A jet aerator, comprising:

the jet flow element is provided with a jet flow pipe and a cover body, the center of the cover body is provided with a flow guide hole, the cover body is combined with one end of the jet flow pipe, an accelerating space is formed between the jet flow pipe and the cover body, and the other end of the jet flow pipe is provided with a flow passage opening;

the flow guiding element is provided with a flow guiding pipe and an adjusting part, the adjusting part is in a hollow tubular shape, one inlet end of the flow guiding pipe is communicated with the atmosphere, the other outlet end of the flow guiding pipe passes through the flow guiding hole of the cover body and penetrates through the accelerating space, a flow guiding gap is formed between the outlet end and the flow passage opening of the jet pipe, the inner edge of the flow guiding hole and the outer edge of the adjusting part are encircled to form a conical space, and the conical space of the flow guiding hole is slightly smaller than the conical space of the adjusting part; and

and the injection element is provided with a first injection pipe and a second injection pipe, the first injection pipe and the second injection pipe respectively penetrate through the pipe wall of the jet pipe and are communicated with the acceleration space, and a check valve is arranged in the second injection pipe.

2. The jet aerator as claimed in claim 1, wherein the cover has a first coupling portion that is disposed around the inner edge of the diversion hole.

3. The jet aerator according to claim 1, wherein the acceleration space is a tapered space at one end of the flow port, and the smallest cross-sectional area of the acceleration space is connected to the flow port.

4. The jet aerator of claim 2, wherein the outer rim of the adjusting member is surrounded by a second engaging portion, and the second engaging portion engages with the first engaging portion.

5. The jet aerator of claim 1, wherein the first injection pipe is offset from a central axis of the jet pipe.

6. The jet aerator of claim 1, wherein the first injection pipe penetrates the jet pipe obliquely, and the injection port is offset toward the direction of the flow port.

7. A jet aerator is characterized in that: comprises the following steps:

the jet flow element is provided with a jet flow pipe and a cover body, the center of the cover body is provided with a flow guide hole, the cover body is combined with one end of the jet flow pipe, an accelerating space is formed between the jet flow pipe and the cover body, and the other end of the jet flow pipe is provided with a runner opening;

the flow guiding element is provided with a flow dividing pipe and an adjusting piece, the adjusting piece is in a hollow tubular shape, the flow dividing pipe is provided with an inlet end, a closed end and a plurality of through holes, the closed end passes through the flow guiding hole of the cover body and penetrates through the accelerating space, a flow guiding gap is formed between the closed end and the flow passage opening of the jet flow pipe, the plurality of through holes are annularly arranged on the pipe wall of the flow dividing pipe and are communicated with the inside of the flow dividing pipe and the accelerating space, the inner edge of the flow guiding hole and the outer edge of the adjusting piece are encircled to form a conical space, and the conical space of the flow guiding hole is slightly smaller than the conical space of the adjusting piece; and

8. The jet aerator as claimed in claim 7, wherein the cover has a first coupling portion that is disposed around the inner edge of the diversion hole.

9. The jet aerator as claimed in claim 7, wherein the accelerating space is a tapered space at one end of the flow port, and the smallest cross-sectional area of the accelerating space is connected to the flow port.

10. The jet aerator of claim 8, wherein the outer rim of the adjusting member is surrounded by a second engaging portion, and the second engaging portion engages with the first engaging portion.