A water-gas integrated auxiliary breeding device for river crabs in a pond with microbubbles

Abstract

The present invention discloses a water-gas integrated auxiliary breeding device for river crabs in a pond with water-carrying microbubbles, comprising a plurality of air supply mechanisms arranged in the pond, wherein the air supply mechanisms comprise a self-priming pump body group and a pipeline group connected to the self-priming pump body group, wherein the self-priming pump body group comprises a pump body, a coarse bolt and a fine bolt, a coarse bolt microhole is provided in the impeller negative pressure area of ​​the pump body, the coarse bolt thread is fitted in the coarse bolt microhole, a micro hole for discharging air is provided on the nut surface of the coarse bolt, the fine bolt is fitted inside the coarse bolt, and the fine bolt rotates inside the coarse bolt to adjust the length, thereby optimizing the overall dissolved oxygen level and distribution state of the pond by diffusion, and effectively solving the problems in the background technology.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture, and in particular to a water-gas integrated auxiliary breeding device for river crabs in a pond with water-carrying microbubbles. Background Art

[0002] Planting grass to raise crabs is the main mode of river crab breeding ponds at present. Planting aquatic plants not only ensures the habitat and growth environment of river crabs, but also provides sufficient dissolved oxygen for the pond water under sunshine conditions. However, at the same time, planting aquatic plants also hinders the flow and exchange of water to a certain extent, resulting in the following technical disadvantages of traditional oxygenation devices and methods:

[0003] (1) The air molecules (bubbles) formed by the aeration device are large in size and float to the surface at a relatively fast speed, resulting in a low dissolved oxygen ratio in the pool water, so that most of the oxygen is still discharged back into the air in the form of large bubbles;

[0004] (2) The water body flows slowly, and the oxygenation rate in some local areas is fast, resulting in the formation of oxygen-rich areas, and the oxygen in the water cannot diffuse;

[0005] (3) At night, aquatic plants cannot produce oxygen through photosynthesis, and they need to breathe to survive. In addition, the water flow and diffusion in the aquatic plant area are even worse, resulting in an extremely low oxygen level in the aquatic plant area. The situation is even worse on cloudy days.

[0006] (4) The dissolved oxygen level in the bottom water is generally low. In addition, the life of river crabs and other biological and microbial activities consume a lot of oxygen. However, the current aeration device has little effect on improving the dissolved oxygen in the bottom water, and has no obvious effect on improving the dissolved oxygen in the upper water body.

[0007] At present, the existing pond aquaculture oxygenation equipment does not have an excellent effect, high cost performance, and easy to use equipment. So far, it has become a top priority to invent a device that can solve the above functions. Summary of the invention

[0008] In order to find a more effective implementation solution, the present invention provides a water-gas integrated auxiliary breeding device for river crabs in a pond with water-carrying microbubbles, which optimizes the overall dissolved oxygen level and distribution state of the pond by diffusion, and can effectively solve the problems in the background technology.

[0009] To achieve the above-mentioned purpose, the present invention discloses a water-gas integrated auxiliary breeding device for river crabs in a pond with water-carrying microbubbles, comprising a plurality of air supply mechanisms arranged in the pond, wherein the air supply mechanisms include a self-priming pump group and a pipeline group connected to the self-priming pump group, the self-priming pump group includes a pump body and a coarse bolt, a coarse bolt microhole is provided in the impeller negative pressure area of ​​the pump body, the coarse bolt thread is fitted in the coarse bolt microhole, and a microhole for discharging air is provided on the nut surface of the coarse bolt.

[0010] Furthermore, a screw is spirally arranged inside the micro hole, and the length of the screw inside the micro hole is adjusted by rotating.

[0011] Furthermore, the pipeline group includes a water suction pipeline and a water discharge pipeline, the water suction pipeline is connected to the water inlet end of the pump body, and the water discharge pipeline is connected to the water outlet end of the pump body.

[0012] Furthermore, the water outlet pipe includes a curved section and a vertical section, the bottom of the vertical section is horizontal, and the water intake pipe is vertical.

[0013] Furthermore, a plurality of conducting holes are arranged on the surface of the water outlet pipe, and the spacings between adjacent conducting holes are the same.

[0014] Furthermore, the ratio of the orifice diameter D of the conducting hole to the pipe diameter H of the water outlet pipe is 1:4.

[0015] Furthermore, the pump body also includes a thin bolt, which is spirally installed inside the thick bolt, and the thin bolt rotates inside the thick bolt to adjust its length.

[0016] Compared with the prior art, the water-gas integrated auxiliary breeding device for river crabs in a pond with water-carrying microbubbles of the present invention has the following beneficial effects:

[0017] The centrifugal pump is used to extract oxygen-deficient water from the bottom of the breeding pond, and a conducting hole is opened in the negative pressure area to allow air to enter the pump body; the centrifugal pump impeller runs at high speed to make the air and water fully contact, stir and mix, thereby forming oxygen-rich water carrying a large number of tiny bubbles; a microporous pipe is laid at the bottom of the pond in the aquatic plant area; the centrifugal pump sends the formed oxygen-rich water carrying microbubbles into the pipe at a certain pressure; under the action of pressure, the oxygen-rich water carrying microbubbles passes through the micropores of the pipe along the bottom of the pond in the aquatic plant area to form micro-flowing water; driven by the micro-flowing water, oxygen-containing microbubbles diffuse from the bottom of the aquatic plant area of ​​the pond to the surrounding areas and slowly rise, thereby solving and improving the lack of oxygen in the aquatic plant area at night, optimizing the overall dissolved oxygen level and distribution in the breeding pond, and then facilitating the habitat and growth of river crabs. The overall cost-effectiveness is high, it has universality, integrated functions, simple and stable structure, and can effectively solve and improve the lack of oxygen in the aquatic plant area at night or on cloudy days.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 It is a schematic diagram of the overall structure of the gas supply mechanism of the present invention;

[0021] Figure 2 It is a schematic diagram of the water outlet pipe structure of the present invention;

[0022] Figure 3 is an enlarged top view of the water outlet pipe of the present invention;

[0023] Figure 4 is a cross-sectional view of the thick and thin bolt combination device of the present invention with an air intake ratio of zero percent;

[0024] Figure 5 is a cross-sectional view of the thick and thin bolt combination device of the present invention with an air intake ratio of 40 percent;

[0025] Figure 6 It is a cross-sectional view of the thick and thin bolt combination device of the present invention with an air intake ratio of 100%;

[0026] Figure 7 is a top view of the pond arrangement air supply mechanism of the present invention;

[0027] Figure 8 It is a side view of the pond-arranged air supply mechanism of the present invention.

[0028] 1- pump body; 2- thick bolt; 3- screw; 4- thin bolt; 5- water suction pipe; 6- water outlet pipe; 7- micro hole of thick bolt; 8- micro hole; 9- conduction hole; 10- air supply mechanism;

[0029] 61- curved segment; 62- vertical segment. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0031] See also Figures 1 to 8The present invention discloses a water-gas integrated auxiliary breeding device for river crabs in a pond with water-carrying microbubbles, comprising a plurality of air supply mechanisms 10 arranged in the pond, wherein the air supply mechanisms 10 comprise a self-priming pump group and a pipeline group connected to the self-priming pump group. By arranging a plurality of air supply mechanisms 10 inside the pond, after oxygen-deficient water is extracted from the bottom of the pond through the self-priming pump combined pipeline group of the air supply mechanisms 10, external air is allowed to enter the water to fully contact, stir and mix, so that oxygen-rich water carrying a large number of tiny bubbles is formed inside the entire pond, thereby effectively improving the water quality of the pond, being beneficial to the habitat and growth of river crabs, and improving the river crab breeding effect.

[0032] The self-priming pump assembly includes a pump body 1, a thick bolt 2 and a thin bolt 4. A thick bolt microhole 7 is provided in the impeller negative pressure area of ​​the pump body 1. The thick bolt 2 is threadedly fitted in the thick bolt microhole 7. A microhole 8 for discharging air is provided on the nut surface of the thick bolt 2. The pipeline assembly includes a water suction pipeline 5 and a water outlet pipeline 6. The water suction pipeline 5 is connected to the water inlet end of the pump body 1, and the water outlet pipeline 6 is connected to the water outlet end of the pump body 1.

[0033] Under the water suction action of the pump body 1, the oxygen-deficient water at the bottom of the pond is pumped out through the water suction pipe 5 and discharged through the water outlet pipe 6. At the same time, external air can enter the pump body 1 through the micro holes 8 on the nut surface of the thick bolt 2 located in the negative pressure area. Under the high-speed rotation of the impeller inside the entire pump body 1, the air entering the pump body 1 and the oxygen-deficient water are fully contacted, stirred and mixed, thereby forming oxygen-rich water carrying a large number of tiny bubbles. The formed oxygen-rich water is re-discharged to the bottom of the pond, increasing the overall dissolved oxygen content of the pond, effectively improving the oxygen deficiency in the aquatic plant area inside the pond, especially the oxygen deficiency at night, and effectively improving the breeding effect of pond river crabs.

[0034] The surface of the water outlet pipe 6 is provided with a plurality of conducting holes 9 , and the spacing between adjacent conducting holes 9 is the same. When draining water, the conducting holes 9 are used to improve the drainage diffusion effect of the water outlet pipe 6 .

[0035] Furthermore, under the action of the entire pump body 1, the oxygen-rich water body carrying microbubbles is sent into the outlet pipe 6 at a certain pressure and discharged into the pond. Under the action of pressure, the oxygen-rich water body carrying microbubbles passes through the outlet pipe 6 and the conducting holes 9 on its surface to form micro-flowing water along the bottom of the pond in the aquatic plant area; driven by the micro-flowing water, the oxygen-containing microbubbles diffuse from the bottom of the aquatic plant area of ​​the pond to the surrounding areas and slowly rise, which is more conducive to the habitat and growth of river crabs, further improving the diffusion effect, and making the oxygen-rich water diffuse evenly inside the pond.

[0036] As the oxygen-containing microbubbles rise from the surface of the pond bottom, they come into further contact with the water. The contact area between a large number of microbubbles and the water is much larger than that between one large bubble and the water, and the flow time of microbubbles in the water is also relatively long, thereby increasing the oxygen dissolution rate for a second time.

[0037] The ratio of the orifice diameter D of the conducting hole 9 to the pipe diameter H of the outlet pipe 6 is 1:4. While ensuring that the outlet pipe 6 is fully drained, the fineness of the water flow discharged from the conducting hole 9 is improved, and the pressure generated by the pump body 1 is ensured to make the discharged water flow strong enough to improve the diffusion effect of the formed oxygen-enriched water inside the pond, so that the oxygen-enriched water is evenly distributed in the pond.

[0038] The outlet pipe 6 includes a curved section 61 and a vertical section 62. The bottom of the vertical section 62 is horizontal, and the water intake pipe 5 is vertical. Since the end of the vertical section 62 of the outlet pipe 6 is horizontal, the guide hole 9 on its surface is opened in a vertical direction, so that the ejected gas can be evenly diffused at the bottom of the pond, effectively improving the water body at the bottom of the pond.

[0039] A screw 3 is spirally arranged inside the micro hole 8. The screw 3 can be rotated to adjust the length inside the micro hole 8 to change the opening and closing of the micro hole 8, so as to control the state of air entering.

[0040] like Figures 4 to 6 As shown, it should be noted that the thin bolt 4 is installed in cooperation with the coarse bolt 2, and the thin bolt 4 is rotated inside the coarse bolt 2 to adjust the length. The coarse bolt 2 and the thin bolt 4 form a coarse and thin bolt combination device to control the state and proportion of air entering. During specific operation, when the pump body 1 pumps water to increase oxygen, the external air enters the coarse bolt 2 through the micro hole 8 and then mixes with the pumped pond water. During specific use, the size of the air inlet of the micro hole 8 can be changed by rotating to adjust the length of the thin bolt 4 inside the micro hole 8, thereby adjusting the proportion of air entering the pump body 1, so as to reasonably control the oxygen content in the mixed pond water and make the operation more convenient.

[0041] Furthermore, according to the distribution status of different ponds, multiple air supply mechanisms 10 are reasonably installed at the bottom of the pond to improve the overall working efficiency. After a period of working cycle, when the pond water reaches a healthy state, the device can be turned off.

[0042] The above descriptions are only some embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A water-gas integrated auxiliary breeding device for river crabs in a pond with microbubbles, characterized in that: The invention comprises a plurality of air supply mechanisms (10) arranged in a pond, wherein the air supply mechanism (10) comprises a self-priming pump group and a pipeline group connected to the self-priming pump group, wherein the self-priming pump group comprises a pump body (1) and a thick bolt (2), wherein a thick bolt microhole (7) is provided in the impeller negative pressure area of ​​the pump body (1), wherein the thick bolt (2) is threadedly engaged in the thick bolt microhole (7), and a microhole (8) for discharging air is provided on the surface of the nut of the thick bolt (2); The pipeline group comprises a water intake pipeline (5) and a water outlet pipeline (6), wherein the water intake pipeline (5) is connected to the water inlet end of the pump body (1), and the water outlet pipeline (6) is connected to the water outlet end of the pump body (1), and the water intake pipeline (5) and the water outlet pipeline (6) both lead to the bottom of the pond; A screw (3) is also spirally arranged inside the micro hole (8), and the screw (3) can be adjusted in length inside the micro hole (8) by rotating; The water outlet pipe (6) comprises a curved section (61) and a vertical section (62); the bottom of the vertical section (62) is horizontal; and the water intake pipe (5) is vertical; A plurality of conducting holes (9) are provided on the surface of the water outlet pipe (6), and the spacing between adjacent conducting holes (9) is the same; the ratio of the orifice diameter of the conducting hole (9) to the pipe diameter of the water outlet pipe (6) is 1:4; The pump body (1) further comprises a thin bolt (4), wherein the thin bolt (4) is screwed inside the thick bolt (2) along the axial direction of the thick bolt (2), and the thin bolt (4) rotates inside the thick bolt (2) to adjust its length; The self-priming pump group pumps out the oxygen-deficient water at the bottom of the pond through the water suction pipe (5). In the self-priming pump group, the air and the oxygen-deficient water are fully contacted, stirred and mixed to form oxygen-rich water. The self-priming pump group then discharges the formed oxygen-rich water back to the bottom of the pond.

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