Water circulation system of aquatic product transport vehicle

Abstract

A water circulation system of an aquatic product transport vehicle relates to the technical field of water treatment and comprises a water pool, a gas-liquid mixer located above the liquid level is arranged in the water pool, a partition plate is horizontally and fixedly connected in the water pool, an impurity cleaning channel is formed between the partition plate and the inner bottom of the water pool, and an inlet structure communicated with the impurity cleaning channel is arranged on the partition plate. A plurality of water feeding pipes communicated with the impurity cleaning channel are fixedly connected to the partition plate in parallel, the outlet ends of the water feeding pipes are connected with self-cleaning filters, and the outlet ends of the self-cleaning filters are connected with a gas-liquid mixer. The problems that in the prior art, an aquatic product transport vehicle is limited by a water pumping pipeline fixedly arranged at the bottom of a pool, so that a circulating blind area is formed at the corners of the pool bottom, dirt metabolized by aquatic products is accumulated and difficult to pump away, the pool is not thoroughly cleaned, and bacteria are bred are solved.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and in particular to a water circulation system of an aquatic product transport vehicle. Background Art

[0002] The main function of aquatic product transport vehicles is to ensure that aquatic products remain fresh and hygienic during transportation, while improving transportation efficiency and survival rate. Aquatic product transport vehicles are suitable for the transportation of various fresh aquatic products, including high-density, long-term and long-distance live transportation of marine and freshwater fish, shrimp, crabs, shellfish and other aquatic animals; water quality control in the pool of aquatic product transport vehicles is crucial in aquatic product transportation. The cleanliness and oxygen content of the pool water directly affect the survival rate of aquatic products. A reasonable and efficient water circulation system can clean the metabolic excreta of aquatic products in time, replenish oxygen, provide an excellent living environment for aquatic products, reduce the occurrence of diseases, and prolong their survival time.

[0003] As the existing technology is used, its shortcomings are gradually exposed, mainly in the following aspects: First, aquatic product transport vehicles are restricted by the fixed pumping pipes at the bottom of the pool, which causes a circulation blind spot in the corners of the pool bottom. The accumulated waste from the metabolism of aquatic products is difficult to be pumped away, resulting in incomplete pool cleaning and the breeding of bacteria.

[0004] Second, the water pool of the aquatic product transport vehicle needs to be kept warm. After being treated by the external water circulation system, a large part of the pool temperature energy is lost in the external water circulation process, which has a great impact on the temperature control of the pool and wastes energy.

[0005] Third, the existing pool uses a water circulation system to pump and return water, causing the pool water to flow significantly, which stimulates aquatic products to swim violently, affecting their work and rest and reducing their survival rate.

[0006] Fourth, the external water circulation system is oxygenated externally. During the return water circulation process, some of the oxygen is lost. In addition, the oxygen concentration is high near the return pipe and low at places far away from the return pipe. The oxygen concentration in the entire pool is uneven, and hypoxia occurs in areas with high density of aquatic products.

[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0008] In view of the defects in the prior art, the present invention provides a water circulation system for aquatic product transport vehicles, which is used to solve the problem that aquatic product transport vehicles in traditional technology are limited by the pumping pipes fixed at the bottom of the pool, resulting in the formation of circulation blind spots at the corners of the pool bottom, and the accumulation of waste metabolized by aquatic products is difficult to be pumped away, resulting in incomplete pool cleaning and bacterial growth.

[0009] To achieve the above object, the present invention provides the following technical solutions: The water circulation system of the aquatic product transport vehicle includes a water pool, wherein a gas-liquid mixer located above the liquid level is provided inside the water pool. A partition plate is fixedly connected horizontally in the water pool, and an impurity cleaning channel is formed between the partition plate and the bottom of the water pool. An inlet structure connected to the impurity cleaning channel is provided on the partition plate. A plurality of upper water pipes connected to the impurity cleaning channel are fixedly connected in parallel on the partition plate, the outlet end of the upper water pipe is connected to a self-cleaning filter, and the outlet end of the self-cleaning filter is connected to the gas-liquid mixer.

[0010] As an optimized solution, the self-cleaning filter includes a shell fixedly connected to the gas-liquid mixer, a filtering structure is provided in the shell, the bottom of the shell is connected to the inner cavity of the gas-liquid mixer, and a mud extraction pipe located above the filtering structure is vertically fixed in the shell.

[0011] As an optimized solution, a sludge thickness detection sensor located above the filtering structure is fixedly connected to the inner wall of the shell.

[0012] As an optimized solution, the outlet end of the water supply pipe is fixedly connected to a water distribution pipe which is located above the shell and is arranged in an inverted U shape, and a flow sensor is arranged inside the water distribution pipe.

[0013] As an optimized solution, the entry structure includes a plurality of liquid inlets opened at the center position of the partition plate, and the impurity cleaning channel is provided with a liquid suction pump in the area below the liquid inlets, the inlet end of the liquid suction pump is connected to the liquid inlet, and the outlet end of the liquid suction pump is connected to the impurity cleaning channel.

[0014] As an optimized solution, a diamond-shaped guide plate is fixedly connected to the impurity cleaning channel in the top view direction, four upper water pipes are arranged in parallel, and water receiving ports connected to the inlet end of the upper water pipe are opened at the corners of the guide plate.

[0015] As an optimized solution, the gas-liquid mixer includes a box body fixedly arranged above the liquid level of the water pool, the bottom surface of the box body is evenly distributed with liquid equalizing holes, the top of the box body is fixedly connected to an oxygen supply pipeline, the outlet end of the oxygen supply pipeline extends into the box body and is fixedly connected to an air stone, and the air stone is located in the area below the liquid level of the box body.

[0016] As an optimized solution, the inlet end of the oxygen supply pipeline is connected to an oxygen supply unit, and the oxygen supply pipeline is connected to an oxygen supply electric proportional valve.

[0017] As an optimized solution, an oxygen content detection sensor is fixedly provided on the inner wall of the water pool.

[0018] As an optimized solution, the outlet end of the mud pumping pipeline is connected to a mud pump.

[0019] As an optimized solution, the height of the upper surface of the partition plate is gradually lowered from the outside to the center.

[0020] Compared with the prior art, the present invention has the following beneficial effects: By setting a partition plate and using a liquid suction pump, the liquid inside the pool is sucked into the impurity cleaning channel. The upper surface height of the partition plate is gradually lowered from the outside to the center, so that the impurities at the bottom of the pool can be completely introduced into the impurity cleaning channel by using the water flow and the inclined upper surface of the partition plate. There are no sanitary dead corners and blind spots, and the impurities in the water in the pool can be discharged in a timely and thorough manner, reducing the impact of impurities and excrement on the breeding environment and improving the survival rate of aquatic products. The impurities in the pool are discharged into the self-cleaning filter through the water supply pipe. The aquaculture water filtered by the self-cleaning filter flows back to the pool through the gas-liquid mixer, which reduces the temperature loss caused by the external water circulation in the traditional technology, reduces the fluctuation of the water temperature in the pool, reduces the irritation to the aquatic products, improves the survival rate of the aquatic products, and reduces the energy loss. By installing a flow sensor inside the water distribution pipe, the flow rate can be detected. According to the water flow requirements of different aquatic products, the flow rate of the suction pump can be adjusted to simulate the natural environment. The flow in the entire pool is slow, which has little stimulation to the aquatic products, providing a quiet rest environment for the aquatic products and improving the survival rate of the aquatic products. By connecting the self-cleaning filter to the gas-liquid mixer, the filtered aquaculture water can be oxygenated. The microporous structure on the air stone can be used to evenly disperse the oxygen introduced by the oxygen supply unit, so that it can fully contact with the filtered aquaculture water and then flow evenly into the pool through the liquid-distributing hole, so that the oxygen and aquaculture water can be efficiently and evenly mixed. The oxygen content detection sensor is also equipped to monitor the oxygen concentration in the pool to avoid the occurrence of hypoxia and oxygen enrichment, thereby improving the survival rate of aquatic products. In addition, when the aquaculture water falls through the equalizing holes, it can contact with the outside air again, further improving the oxygenation efficiency; Impurities gradually accumulate inside the self-cleaning filter and reach a certain height. When it reaches the height of the sludge thickness detection sensor, the sludge pump is started to suck away the impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0022] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the guide plate of the present invention; Figure 3 It is a schematic structural diagram of the gas-liquid mixer of the present invention.

[0023] In the figure: 1-water tank; 2-partition plate; 3-impurity cleaning channel; 4-liquid inlet; 5-liquid suction pump; 6-water supply pipe; 7-water distribution pipe; 8-flow sensor; 9-self-cleaning filter; 10-sludge thickness detection sensor; 11-filtration structure; 12-sludge extraction pipeline; 13-box; 14-air stone; 15-oxygen supply pipeline; 16-oxygen supply unit; 17-oxygen supply electric proportional valve; 18-sludge extraction pump; 19-guide plate; 20-water inlet; 21-liquid equalization hole; 22-oxygen content detection sensor. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0025] like Figures 1 to 3 As shown, the water circulation system of the aquatic product transport vehicle includes a water pool 1, in which a gas-liquid mixer located above the liquid surface is provided. A partition plate 2 is fixedly connected horizontally in the water pool 1, and an impurity cleaning channel 3 is formed between the partition plate 2 and the bottom of the water pool 1. An inlet structure connected to the impurity cleaning channel 3 is provided on the partition plate 2. A plurality of upper water pipes 6 connected to the impurity cleaning channel 3 are fixedly connected in parallel on the partition plate 2, and the outlet end of the upper water pipe 6 is connected to a self-cleaning filter, and the outlet end of the self-cleaning filter is connected to a gas-liquid mixer.

[0026] The self-cleaning filter 9 includes a shell fixedly connected to the gas-liquid mixer, a filter structure 11 is arranged in the shell, the bottom of the shell is connected to the inner cavity of the gas-liquid mixer, and a mud extraction pipe 12 located above the filter structure 11 is vertically fixed in the shell.

[0027] A sludge thickness detection sensor 10 located above the filtering structure 11 is fixedly connected to the inner wall of the housing.

[0028] The outlet end of the water supply pipe 6 is fixedly connected to a water distribution pipe 7 which is located above the shell and is arranged in an inverted U shape. A flow sensor 8 is arranged inside the water distribution pipe 7 .

[0029] The entry structure includes a plurality of liquid inlets 4 opened at the center position of the partition plate 2. A liquid suction pump 5 is provided in the area below the liquid inlet 4 of the impurity cleaning channel 3. The inlet end of the liquid suction pump 5 is connected to the liquid inlet 4, and the outlet end of the liquid suction pump 5 is connected to the impurity cleaning channel 3.

[0030] A rhombus-shaped guide plate 19 is fixedly connected in the impurity cleaning channel 3 in the top view direction, four water supply pipes 6 are arranged in parallel, and a water receiving port 20 connected to the inlet end of the water supply pipe 6 is opened at the corner position of the guide plate 19.

[0031] The gas-liquid mixer includes a box body 13 fixedly arranged above the liquid level of the water pool, and liquid equalizing holes 21 are evenly distributed on the bottom surface of the box body 13. An oxygen supply pipeline 15 is fixedly connected to the top of the box body 13. The outlet end of the oxygen supply pipeline 15 extends into the box body 13 and is fixedly connected to an air stone 14. The air stone 14 is located in the area below the liquid level of the box body 13.

[0032] The inlet end of the oxygen supply pipeline 15 is connected to an oxygen supply unit 16 , and the oxygen supply pipeline 15 is connected to an oxygen supply electric proportional valve 17 .

[0033] An oxygen content detection sensor 22 is fixedly provided on the inner wall of the pool 1 .

[0034] The outlet end of the mud pumping pipeline 12 is connected to a mud pump 18 .

[0035] The height of the upper surface of the partition plate 2 is gradually lowered from the outside to the center.

[0036] By setting the partition plate 2 and using the liquid suction pump 5, the liquid inside the pool 1 is sucked into the impurity cleaning channel 3. The upper surface height of the partition plate 2 is gradually lowered from the outside to the center, so that the impurities at the bottom of the pool 1 can be completely introduced into the impurity cleaning channel 3 by using the water flow and the inclined upper surface of the partition plate 2. There are no sanitary dead corners and blind spots, and the impurities in the water in the pool 1 can be discharged in time and thoroughly, reducing the impact of impurities and excrement on the breeding environment and improving the survival rate of aquatic products. The impurities in the water pool 1 are discharged into the self-cleaning filter 9 by the water supply pipe 6. The aquaculture water filtered by the self-cleaning filter 9 flows back to the inside of the water pool 1 through the gas-liquid mixer, thereby reducing the temperature loss caused by the external water circulation system in the traditional technology, making the fluctuation of the water temperature in the water pool 1 small, reducing the irritation to the aquatic products, improving the survival rate of the aquatic products, and reducing the energy loss; By providing a flow sensor 8 inside the water distribution pipe 7, the flow rate can be detected. According to the water flow requirements of different aquatic products, the flow rate of the suction pump 5 can be adjusted to simulate the natural environment. The flow in the entire pool 1 is slow, which has little stimulation to the aquatic products, providing the aquatic products with a quiet rest environment and improving the survival rate of the aquatic products. By connecting the self-cleaning filter 9 to the gas-liquid mixer, the filtered aquaculture water can be oxygenated. Through the microporous structure on the air stone 14, the oxygen introduced by the oxygen supply unit 16 can be evenly dispersed, so that it can fully contact with the filtered aquaculture water and then flow into the water pool evenly through the liquid balancing hole 21, so that the oxygen and the aquaculture water are efficiently and evenly mixed. An oxygen content detection sensor 22 is provided to monitor the oxygen concentration in the water pool 1 to avoid the occurrence of hypoxia and oxygen enrichment, thereby improving the survival rate of aquatic products. In addition, the aquaculture water can contact with the outside air again during the process of falling through the liquid equalization hole 21, further improving the oxygenation efficiency; Impurities gradually accumulate inside the self-cleaning filter 9 to a certain height. When the height reaches the height of the sludge thickness detection sensor 10, the sludge pump 18 is started to suck away the impurities.

[0037] The working principle of this system is: The liquid suction pump 5 is installed in the impurity cleaning channel 3 below the partition plate 2. The size of the liquid inlet 4 should be smaller than two-thirds of the width of the smallest size of the aquatic product to prevent the aquatic product from being sucked into the liquid inlet 4. The liquid suction pump 5 rotates under the drive of the variable frequency speed regulating electronic control system, so that the water in the impurity cleaning channel 3 rotates, generating centrifugal force to diffuse around; the water diffused by the centrifugal force flows to the water receiving port 20 under the action of the diamond-shaped guide plate 19, and reaches the self-cleaning filter 9 through the water supply pipe 6; A flow sensor 8 is provided inside the water distribution pipe 7 to detect the water flow velocity value and adjust the speed of the liquid suction pump 5 through frequency conversion speed regulation to make the pool water quiet so as to avoid adverse interference and stimulation to the aquatic products; The aquaculture water flowing into the self-cleaning filter passes through the filtering structure 11 to filter and separate the aquatic product metabolic waste, and the purified aquaculture water flows into the gas-liquid mixer through the lower end of the self-cleaning filter; Impurities gradually accumulate inside the self-cleaning filter 9 and reach a certain height. When the height reaches the sludge thickness detection sensor 10, the sludge pump 18 is started to suck away the impurities. The bottom of the gas-liquid mixer is densely covered with liquid-distributing holes 21, wherein the speed at which the liquid falls through the liquid-distributing holes 21 is lower than the speed at which the liquid enters the gas-liquid mixer, so the liquid will have a liquid level in the gas-liquid mixer, and the gas stone 14 is immersed in the area below the liquid level. The oxygen supply unit 16 delivers oxygen to the gas stone 14 through the oxygen delivery pipeline 15, and is evenly sprayed out through the gas stone 14, and is fully contacted and dissolved with the water in the gas-liquid mixer; the oxygenated and purified water is driven by the liquid suction pump 5 along the surface of the pool 1, and slowly circulates to the bottom of the pool, so that the oxygen is evenly distributed along the direction of the water flow; According to the different densities of aquatic transport, the oxygen content detection sensor 22 monitors the oxygen content in the middle of the pool 1, and adjusts the oxygen delivery amount through the oxygen supply electric proportional valve 17 to make the oxygen concentration in the pool 1 appropriate; The pool water, which has consumed oxygen and contained excrement from the aquatic products, flows to the liquid inlet 4 and continues to circulate for cleaning and oxygenation, and the cycle repeats.

[0038] Each of the above power-consuming unit components is provided by the onboard battery or engine of the aquatic product transport vehicle.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. The water circulation system of aquatic product transport vehicle is characterized by: The invention comprises a water pool (1), wherein a gas-liquid mixer is provided inside the water pool (1) and is located above the liquid surface. A partition plate (2) is fixedly connected horizontally in the water pool (1), and an impurity cleaning channel (3) is formed between the partition plate (2) and the bottom of the water pool (1). An inlet structure connected to the impurity cleaning channel (3) is provided on the partition plate (2). A plurality of upper water pipes (6) connected to the impurity cleaning channel (3) are fixedly connected in parallel to the partition plate (2); the outlet end of the upper water pipe (6) is connected to a self-cleaning filter (9); and the outlet end of the self-cleaning filter (9) is connected to the gas-liquid mixer.

2. The water circulation system for aquatic product transport vehicle according to claim 1, characterized in that: The self-cleaning filter (9) comprises a shell fixedly connected to the gas-liquid mixer, a filter structure (11) is arranged in the shell, the bottom of the shell is connected to the inner cavity of the gas-liquid mixer, and a mud extraction pipeline (12) located above the filter structure (11) is vertically fixed in the shell.

3. The water circulation system for aquatic product transport vehicle according to claim 2, characterized in that: A sludge thickness detection sensor (10) located above the filtering structure (11) is fixedly connected to the inner wall of the shell.

4. The water circulation system for aquatic product transport vehicle according to claim 2, characterized in that: The outlet end of the upper water pipe (6) is fixedly connected to a water distribution pipe (7) located above the shell and arranged in an inverted U shape, and a flow sensor (8) is arranged inside the water distribution pipe (7).

5. The water circulation system for aquatic product transport vehicle according to claim 1, characterized in that: The inlet structure comprises a plurality of liquid inlets (4) opened at the center of the partition plate (2); a liquid suction pump (5) is provided in the area of ​​the impurity cleaning channel (3) below the liquid inlet (4); the inlet end of the liquid suction pump (5) is connected to the liquid inlet (4), and the outlet end of the liquid suction pump (5) is connected to the impurity cleaning channel (3).

6. The water circulation system for aquatic product transport vehicle according to claim 1, characterized in that: A rhombus-shaped guide plate (19) is fixedly connected in the impurity cleaning channel (3) in a top view direction, four upper water pipes (6) are arranged in parallel, and a water receiving port (20) connected to the inlet end of the upper water pipe (6) is provided at the corner position of the guide plate (19).

7. The water circulation system for aquatic product transport vehicle according to claim 1, characterized in that: The gas-liquid mixer comprises a box (13) fixedly arranged above the liquid level of the water pool (1), the bottom surface of the box (13) being evenly distributed with liquid distribution holes (21), the top of the box (13) being fixedly connected with an oxygen supply pipeline (15), the outlet end of the oxygen supply pipeline (15) extending into the box (13) and being fixedly connected with an air stone (14), the air stone (14) being located in an area below the liquid level of the box (13).

8. The water circulation system for aquatic product transport vehicle according to claim 7, characterized in that: The inlet end of the oxygen supply pipeline (15) is connected to an oxygen supply unit (16), and the oxygen supply pipeline (15) is connected to an oxygen supply electric proportional valve (17).

9. The water circulation system for aquatic product transport vehicle according to claim 1, characterized in that: An oxygen content detection sensor (22) is fixedly provided on the inner wall of the water pool (1).

10. The water circulation system for aquatic product transport vehicle according to claim 1, characterized in that: The height of the upper surface of the partition plate (2) is gradually lowered from the outside to the center.

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