Special oxygenation equipment for aquaculture

Abstract

The utility model discloses special oxygenation equipment for aquaculture, which comprises an oxygenation cone and an oxygen dispersing device which are arranged in a recirculating aquaculture system, a water inlet of the oxygen dispersing device is connected with the recirculating aquaculture system, a water outlet of the oxygen dispersing device is connected with a water inlet of the oxygenation cone, and a water outlet of the oxygenation cone is connected with the recirculating aquaculture system. According to the device, the oxygen dispersing device is externally arranged outside the oxygenation cone, so that the oxygen dispersing device and the oxygenation cone are convenient to disassemble and maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oxygen -increasing equipment, especially the oxygen -increasing equipment special for aquaculture. BACKGROUND

[0002] In aquaculture, the dissolved oxygen in the circulating water aquaculture system can directly affect the growth and development of aquatic products, so it is necessary to consider how to oxygenate the water flow in the circulating water aquaculture system to meet the needs of aquaculture. Most of the existing circulating water aquaculture systems directly install an oxygenation cone in the circulating water aquaculture system for oxygenating water. However, the oxygen dispersion device in such a setup is located inside the oxygenation cone, making it difficult to disassemble and maintain the equipment. Once damaged, it will delay the production of aquaculture. Meanwhile, the oxygen intake is not easy to control, and it is impossible to maintain a stable dissolved oxygen concentration. Moreover, the cone section angle of the existing oxygenation cone is large, and when the water moves from top to bottom, the turbulence is rapid, and the oxygen dissolution is not good. To solve these problems, the present application provides a solution. SUMMARY

[0003] The utility model aims at providing an oxygen -increasing equipment special for aquaculture, which is easy to install and disassemble, improves the dissolved oxygen concentration in the circulating water aquaculture system, ensures the continuity and stability of the dissolved oxygen concentration in the circulating water aquaculture system, and realizes the control of the dissolved oxygen concentration.

[0004] Technical scheme: The utility model discloses an oxygen -increasing equipment special for aquaculture, which comprises an oxygenation cone and an oxygen dispersion device arranged in a circulating water aquaculture system. The water inlet of the oxygen dispersion device is connected with the circulating water aquaculture system, and the water outlet is connected with the water inlet of the oxygenation cone. The water outlet of the oxygenation cone is connected with the circulating water aquaculture system, and the oxygen dispersion device is connected with an oxygen supply device.

[0005] By placing the oxygen dispersion device outside the oxygenation cone, the disassembly and maintenance of the two are facilitated.

[0006] Preferably, the oxygenation cone and the oxygen dispersion device are connected by a flange.

[0007] The flange connection facilitates the disassembly of the oxygenation cone and the oxygen dispersion device.

[0008] Preferably, the cone section of the oxygenation cone has a section angle of 28°.

[0009] The turbulence of the cone with a section angle of 28° has a small effect on oxygen dissolution, which is beneficial to oxygen dissolution.

[0010] Preferably, a dissolved oxygen probe is installed at the water outlet of the oxygenation cone to detect the dissolved oxygen concentration at the water outlet.

[0011] The dissolved oxygen probe is arranged to monitor the dissolved oxygen concentration at the water outlet of the oxygenation cone, and an operator adjusts the air intake of the external oxygen supply device in real time according to the dissolved oxygen concentration, so that the consistency and stability of the dissolved oxygen concentration in the circulating water system are ensured.

[0012] Preferably, a first ball valve is arranged between the water outlet of the oxygenation cone and the pipeline of the recirculating aquaculture system.

[0013] The first ball valve is arranged to realize the opening and closing control between the water outlet of the oxygenation cone and the recirculating aquaculture system.

[0014] Preferably, a second ball valve is arranged between the water inlet of the oxygen dispersing device and the recirculating aquaculture system.

[0015] The second ball valve is arranged to realize the opening and closing control between the oxygen dispersing device and the recirculating aquaculture system.

[0016] Preferably, the oxygenation cone is further connected with a sewage pipe, a third ball valve is arranged between the sewage pipe and the oxygenation cone, and a flushing pump body is connected to the sewage pipe.

[0017] The third ball valve is arranged to flush clean water into the oxygenation cone through the flushing pump body when the oxygenation cone and the oxygen dispersing device are disconnected from the recirculating aquaculture system, so that the oxygenation cone is cleaned, and then the sewage is discharged through the sewage pipe.

[0018] Preferably, an emergency oxygenation pipeline is further arranged in the recirculating aquaculture system, and an oxygen supply device is connected to the emergency oxygenation pipeline in parallel with the passage where the oxygenation cone and the oxygen dispersing device are arranged.

[0019] The emergency oxygenation pipeline is arranged to temporarily ensure that the dissolved oxygen concentration in the recirculating water system is not too low when the oxygenation cone and the oxygen dispersing device are under maintenance or fail.

[0020] Preferably, a fourth ball valve is arranged at the water inlet end of the emergency oxygenation pipeline, and a fifth ball valve is arranged at the water outlet end of the emergency oxygenation pipeline.

[0021] The fourth ball valve and the fifth ball valve are arranged to control the on-off of the emergency oxygenation pipeline and the recirculating water system.

[0022] Preferably, the emergency oxygenation pipeline and the oxygen dispersing device are both pipe type ceramic aerators.

[0023] Advantages: Compared with the prior art, the utility model has the following advantages:

[0024] (1) The oxygen dispersing device is arranged outside the oxygenation cone, so that the two can be easily disassembled and maintained.

[0025] (2) By adjusting the cross-sectional angle of the cone, this utility model reduces the influence of turbulence in the oxygen-enriching cone on oxygen dissolution and improves the efficiency of oxygen dissolution.

[0026] (3) By setting up a dissolved oxygen probe, this utility model ensures the control of dissolved oxygen concentration and realizes the consistency, continuity and stability of dissolved oxygen concentration in the recirculating aquaculture system.

[0027] (4) This utility model realizes the backwashing and sewage discharge functions of the oxygenation cone by setting up the sewage discharge pipe, thereby improving the service life of the equipment. Attached Figure Description

[0028] Fig. 1 This is a schematic diagram of the present invention.

[0029] Fig. 2 This is a cross-sectional view of the oxygenation cone in this utility model.

[0030] Fig. 3 This is a schematic diagram of the connection between the oxygenation cone and the oxygen dispersion device in this utility model via a flange.

[0031] The components are: 1. Oxygen-enriching cone; 2. Oxygen dispersion device; 3. First ball valve; 4. Second ball valve; 5. Sewage pipe; 6. Third ball valve; 7. Emergency oxygen-enriching pipeline; 8. Fourth ball valve; 9. Fifth ball valve; 10. Flange. Detailed Implementation

[0032] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0033] See appendix Figs. 1-3 The aeration equipment for aquaculture shown in this utility model includes an aeration cone 1 and an oxygen dispersion device 2 installed in a recirculating aquaculture system. The inlet of the oxygen dispersion device 2 is connected to the recirculating aquaculture system, the outlet is connected to the inlet of the aeration cone 1, and the outlet of the aeration cone 1 is connected to the recirculating aquaculture system. At the same time, an oxygen supply device is connected to the oxygen dispersion device.

[0034] The oxygen dispersion device 2 adopts a pipeline ceramic aerator. By placing the pipeline ceramic aerator outside the oxygenation cone 1, it is convenient to disassemble and maintain the pipeline ceramic aerator and the oxygenation cone 1.

[0035] In this embodiment, the oxygenation cone 1 and the oxygen dispersion device 2 are connected by a flange 10, which improves the ease of disassembly between the two.

[0036] In this embodiment, the cross-section of the oxygenation cone 1 adopts a cross-sectional angle of 28°. Through simulation of the cone, it is found that when the cross-sectional angle of the cone is 28°, the turbulence in the oxygenation cone 1 has little impact on oxygen dissolution, which is conducive to oxygen dissolution.

[0037] In the embodiment, a dissolved oxygen probe is installed at the water outlet of the oxygenation cone 1 to detect the dissolved oxygen concentration at the water outlet, so as to monitor the dissolved oxygen concentration at the water outlet of the oxygenation cone 1 in real time, and an operator adjusts the air intake of the external oxygen supply device in real time according to the dissolved oxygen concentration, so as to ensure the consistency and stability of the dissolved oxygen concentration in the circulating water system.

[0038] In the embodiment, a first ball valve 3 is arranged between the water outlet of the oxygenation cone 1 and the pipeline of the circulating water culture system, and a second ball valve 4 is arranged between the water inlet of the oxygen dispersion device 2 and the circulating water culture system, so that the on-off control of the passage of the oxygenation cone 1 and the oxygen dispersion device 2 in the circulating water culture system is realized.

[0039] In the embodiment, the oxygenation cone 1 is further connected with a blowdown pipe 5, the third ball valve 6 is arranged between the blowdown pipe 5 and the oxygenation cone 1, and the blowdown pipe 5 is externally connected with a flushing pump body, the third ball valve 6 is arranged to flush clean water flow into the oxygenation cone 1 by the flushing pump body through the blowdown pipe 5 when the oxygenation cone 1 and the oxygen dispersion device 2 are cut off from the circulating water culture system, so as to clean the oxygenation cone 1, then the flushing pump body is closed, and the sewage in the oxygenation cone 1 is discharged through the blowdown pipe 5.

[0040] In the embodiment, an emergency oxygenation pipeline 7 is further arranged in the circulating water culture system, is externally connected with an oxygen supply device, and is connected in parallel with the passage where the oxygenation cone 1 and the oxygen dispersion device 2 are located, the emergency oxygenation pipeline 7 is arranged to temporarily ensure that the dissolved oxygen concentration in the circulating water system will not be too low when the oxygenation cone 1 and the oxygen dispersion device 2 are under maintenance or failure.

[0041] In the embodiment, a fourth ball valve 8 is arranged at the water inlet end of the emergency oxygenation pipeline 7, and a fifth ball valve 9 is arranged at the water outlet end of the emergency oxygenation pipeline 7, the fourth ball valve 8 and the fifth ball valve 9 are arranged to control the on-off of the emergency oxygenation pipeline 7 and the circulating water system.

[0042] In the embodiment, the emergency oxygenation pipeline 7 adopts a pipeline type ceramic aerator.

[0043] When the application is in operation, the first ball valve 3 and the second ball valve 4 are opened, the third ball valve 6, the fourth ball valve 8 and the fifth ball valve 9 are closed, the water flow in the circulating water culture system enters the pipeline type ceramic aerator, is fully contacted with oxygen transported into the pipeline type ceramic aerator by the oxygen supply device for the first time, and then enters the oxygenation cone 1, the dissolved oxygen concentration of the oxygen dissolved in the water flow is further increased, and then enters the circulating water culture system, meanwhile, the dissolved oxygen concentration at the water outlet of the oxygenation cone 1 is monitored in real time by the dissolved oxygen probe, an operator adjusts the air intake of the external oxygen supply device in real time according to the dissolved oxygen concentration, so as to ensure the consistency and stability of the dissolved oxygen concentration in the circulating water system.

[0044] When the oxygen increasing cone 1 and the pipeline ceramic aerator fail or need to be repaired, the first ball valve 3 and the second ball valve 4 are closed, the third ball valve 6, the fourth ball valve 8 and the fifth ball valve 9 are opened, and the emergency oxygen increasing pipeline 7 is opened, so that the dissolved oxygen concentration in the circulating water system is temporarily ensured not to be too low, at this time, the operator completes the maintenance and repair of the oxygen increasing cone 1 and the pipeline ceramic aerator, and the oxygen increasing cone 1 can be cleaned.

[0045] The above embodiment only exemplarily illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. An oxygenation apparatus for aquaculture, characterized by: The oxygen-elevating cone and the oxygen dispersing device are arranged in the circulating water culture system, the water inlet of the oxygen dispersing device is connected with the circulating water culture system, the water outlet is connected with the water inlet of the oxygen-elevating cone, the water outlet of the oxygen-elevating cone is connected with the circulating water culture system, and the oxygen dispersing device is connected with the oxygen supply device.

2. The oxygenation apparatus for aquaculture according to claim 1, characterized in that: The oxygen-elevating cone and the oxygen dispersing device are connected by flanges.

3. The oxygenation apparatus for aquaculture of claim 1, wherein: The cross section angle of the cone of the oxygen-elevating cone is 28°.

4. The oxygenation apparatus for aquaculture of claim 1, wherein: The dissolved oxygen probe for detecting the dissolved oxygen concentration at the water outlet of the oxygen-elevating cone is arranged at the water outlet.

5. The oxygenation apparatus for aquaculture of claim 1, wherein: The first ball valve is arranged between the water outlet of the oxygen-elevating cone and the pipeline of the circulating water culture system.

6. The oxygenation apparatus for aquaculture of claim 1, wherein: The second ball valve is arranged between the water inlet of the oxygen dispersing device and the circulating water culture system.

7. The oxygenation apparatus for aquaculture of claim 1, wherein: The sewage discharge pipe is connected with the oxygen-elevating cone, the third ball valve is arranged between the sewage discharge pipe and the oxygen-elevating cone, and the flushing pump body is connected with the sewage discharge pipe.

8. The oxygenation apparatus of claim 1, wherein: The emergency oxygen-elevating pipeline is arranged in the circulating water culture system, connected with the oxygen supply device, and connected with the passageway of the oxygen-elevating cone and the oxygen dispersing device in parallel.

9. An oxygenation apparatus for aquaculture according to claim 8, characterized in that: The fourth ball valve is arranged at the water inlet of the emergency oxygen-elevating pipeline, and the fifth ball valve is arranged at the water outlet of the emergency oxygen-elevating pipeline.

10. The oxygenation apparatus for aquaculture of claim 8, wherein: The emergency oxygen-elevating pipeline and the oxygen dispersing device are both pipeline ceramic aerators.

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