CN203206990U - Fish absorbing device - Google Patents

Abstract

A fish suction device, comprising a fish suction box, a fish inlet pipeline and a fish discharge pipeline, the high end of the fish suction box is provided with a fish suction port, an exhaust port and a water injection port, and the low end is provided with a water outlet and a fish discharge port, The fish inlet pipeline is connected with the fish suction port of the fish suction box, and the fish discharge pipeline is provided with a fish discharge valve, and the fish discharge pipeline is connected with the fish discharge port of the fish suction box, and the water outlet is provided with a fish-water separation device; It includes a water pump, the first end of the water pump is connected to the water outlet of the fish suction box through the water suction pipe, the second end is connected to the water pipe, the third end is connected to the water injection port of the fish suction box, the water suction pipe, the water pipe, the exhaust port , the water injection port and the fish inlet pipeline are respectively provided with valves. Compared with the prior art, the utility model has the advantages of using a water pump as a negative pressure generator to realize continuous fish suction operation, and at the same time, continuous fresh seawater is pumped in during the fish suction process, which can effectively improve fish suction. survival rate.

Description

a fish sucking device

technical field

The utility model relates to a fish sucking device, which belongs to the technical field of aquaculture equipment used when harvesting fish in aquaculture.

Background technique

my country is a large fishery production country. Fish suction device is an important auxiliary facility to improve the production efficiency of marine fishery in fishery production. Fish suction pump is one of the more commonly used devices. At present, the commonly used fish suction pumps are divided into the following types:

One is the traditional bucket-type fish suction pump, through which the fish and water are simultaneously pumped into the fish-water separator. This fish sucking pump is easy to operate and has high efficiency, but the damage to fish is relatively large in the fish sucking process.

The second is the continuous fish suction pump, which uses high-speed water flow to generate negative pressure to suck up fish and water at the same time, but it requires a lot of energy and power.

The third is the air negative pressure fish suction pump, which utilizes the vacuum pump to generate vacuum negative pressure in the box to realize the fish suction operation, as disclosed in the Chinese utility model patent "Vacuum Type Fish Suction Pump" whose patent number is ZL201220144950.8 (notification number is CN202524930U). Such a vacuum type fish suction pump is provided. A vacuum pump is arranged in the vacuum type fish suction pump. The vacuum pump is located at the lower position of the fish suction tube A and the fish suction tube B. On the same frame, the vacuum pump communicates with the fish suction tube A and the fish suction tube B through the suction pipe A and the suction pipe B, and connects with the electrical control box through wires. Since the utility model adopts a vacuum type fish suction pump, The purpose of automatically and quickly collecting fish and improving the survival rate of live fish has been realized, but this kind of fish suction pump sucks fish and water at the same time every time it sucks fish, but it cannot separate fish and water in time, so it often needs two tanks to operate alternately, Occupies a large area of space. Although the vacuum type fish suction pump has been widely used, it has not yet been popularized and applied in deep-water net cage culture. A jet type fish suction device" provides such a jet type fish suction device, including a fish suction pipe, a water suction pipe, a working water pipe, a working water pump, a jet and a fish discharge pipe, and the fish suction pipe is connected with the fish inlet of the jet The utility model uses the energy of the high-speed working fluid to complete the transportation of fish and realizes The continuous catch of deep-water net cage culture fish, but this utility model uses high-speed water flow to generate negative pressure to suck up fish and water at the same time. Although it can be operated continuously, the high-pressure water flow will also damage the fish to a certain extent, and the effect is limited.

Utility model content

Aiming at the present situation of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a fish sucking device capable of continuous fish sucking operation.

Yet another technical problem to be solved by the utility model is to provide a fish suction device capable of quickly separating fish from water during the fish suction process.

Yet another technical problem to be solved by the utility model is to provide a fish sucking device with little damage to the fish during the fish sucking process.

The technical solution adopted by the utility model to solve the above technical problems is: a fish suction device, including a fish suction box, a fish inlet pipeline and a fish discharge pipeline, the high end of the fish suction box is provided with a fish suction port and an exhaust port, And the low-end position is provided with water outlet and fish row mouth, and aforementioned fish inlet pipeline is connected with the fish suction port of fish suction box, and aforementioned fish row pipeline is provided with fish row valve, and, the aforementioned fish row pipeline is connected with the fish suction box of fish suction box. The fish discharge port connection is characterized in that: the fish suction box also has a water injection port, and the water outlet is provided with a fish-water separation device; the fish suction device also includes a water pump, and the first end of the water pump passes through The water suction pipe is connected with the water outlet of the fish suction box, the second end is connected with a water pipe, and the third end is connected with the water injection port of the aforementioned fish suction box, and the water suction pipe, water pipe, exhaust port, water injection port and fish inlet pipeline are respectively A valve is provided.

When the fish suction device works, first open the valves of the exhaust port and the water injection port, start the water pump to enter the water into the fish suction box through the water injection pipe, then open the valves of the water suction pipe and the water pipe, and suck the fish through the water pipe and the water pipe. The water in the tank is pumped out to form a hydraulic negative pressure in the fish suction tank, so that the fish and water are sucked into the fish suction tank through the fish inlet pipe at the same time, and the water is continuously discharged from the fish-water separation device by the water pump, so as to realize the separation of fish and water .

In order to keep the line stroke of the fish water entering the fish suction box and reduce the mechanical damage of the fish entering the fish suction box, the said fish suction box can be inclined.

For the convenience of monitoring the situation of fish and water in the fish suction box, a monitoring window is also provided at the upper end of the fish suction box near the fish suction mouth.

In order to speed up the suction process of fish water, when fish water enters into the fish suction box at the same time, the fish water separation device is a filter plate capable of separating fish water, and the filter plate is fixed at the water outlet. , the filter plate can quickly discharge water from the fish suction box, so that more fish can be accommodated in the fish suction box, and the speed of fish suction is accelerated.

Further, the third end of the water pump is connected to the water injection port of the fish suction box through the first water injection pipe.

As a further improvement, the first water injection pipe is also connected to the fish suction box through a second water injection pipe, wherein one end of the second water injection pipe is connected to the water suction pipe.

And, A valve and B valve are respectively installed on the first water injection pipe and the second water injection pipe, when A valve and B valve are opened at the same time, the first water injection pipe and the second water injection pipe can jointly form the injection port of the fish sucking device together with the water pipe. water line.

As a further improvement, a water return pipe is also connected between the water pipe and the water pump.

As a further improvement, the fish inlet pipeline includes a flexible front section and a rigid rear section connected to each other, the head of the front section has a funnel-shaped suction head, and the rear section is connected to the fish suction port of the fish suction box.

Further, the rear section is provided with a fish suction valve.

Since the connection between the front section and the rear section is a flange head, the flexible section is between the funnel-shaped suction head underwater and the flange head arranged on the fish inlet pipeline, and the rear section is the flange head to the water inlet. Since the air in the fish suction box is discharged through the vent hole at the upper end of the fish suction box, when the water level rises to the height of the upper end of the fish inlet pipe, seawater will enter the rigid section of the fish inlet pipe, and due to the fish suction The valve is closed so that the air in the pipe can be exhausted to prevent cavitation.

Compared with the prior art, the utility model has the advantages of using a water pump as a negative pressure generator to realize continuous fish suction operation, and at the same time, continuous fresh seawater is pumped in during the fish suction process, which can effectively improve fish suction. The survival rate of the fish suction box is high, and the fish suction box has a fish-water separation device, which can not only realize the separation of fish and water, but also increase the fish storage capacity of the fish suction box. The water injection process, the drainage process and the fish discharge process in the process can be continuously operated, and the fish suction speed of the fish suction device can be effectively improved.

Description of drawings

Fig. 1 is the structural representation of embodiment.

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

In this embodiment, as shown in Figure 1, the fish suction device includes a fish suction box 1, a fish inlet pipeline 2 and a fish discharge pipeline 3 arranged on an incline, and the high end of the fish suction box 1 is provided with a fish suction port 11 and an exhaust port 12. And water injection port 15, and low end position is provided with water outlet 13 and fish discharge port 14, and also fixes a filter plate that can separate fish and water above water outlet 13.

For the convenience of observing the situation of fish and water in the fish suction box 1, the upper end of the fish suction box 1 is also provided with a monitoring window 111 near the fish suction mouth 11. The fish inlet pipeline 2 is connected with the fish suction port 11 of the fish suction box 1. The fish inlet pipeline 2 includes a flexible front section 21 and a rigid rear section 22 connected to each other. The front section 21 head has a funnel-shaped suction head 211, and the rear section 22 It is connected to the fish suction port 11 of the fish suction box 1, and the connection part between the front section 21 and the rear section 22 is the flange head 24, so the section from the funnel-shaped suction head 211 to the flange head 24 is a flexible section, and the rear section is a flange The rigid section between the head 24 and the water inlet 13, and the rear section 22 is also provided with a fish suction valve 23 that controls the opening and closing of the fish inlet pipeline 2. In addition, the fish discharge port 14 of the fish suction box 1 is also connected with the fish discharge pipeline 3, and the fish discharge pipeline 3 is also provided with a fish discharge valve 31 for controlling the opening of the fish discharge pipeline 3.

A water pump 4 is arranged below the fish suction box 1, and a plurality of pipelines and valves on the pipelines are connected between the water suction pump 4 and the fish suction box 1, and the mutual cooperation between them forms the water injection channel of the fish suction device And drainage channel; Wherein the drainage channel is to be connected with the water outlet 13 of this suction fish box 1 by the suction pipe 6 by the first end of the water pump 4, the second end is connected with the water pipe 7, and also on the water pipe 6 and the water pipe 7 respectively A C valve 61 and a D valve 71 are provided, and the third end of the water pump 4 is connected to the water injection port 15 of the fish suction box 1 through the first water injection pipe 9, and the first water injection pipe 9 is also connected to the fish suction pipe 20 through the second water injection pipe. The water outlet 13 of the box 1 is connected. Adjacent to the water pipe 7 is also fixedly installed a return pipe 10, one end of the return pipe 10 communicates with the water pipe 7, and the other end communicates with the water pump 4. Similarly, the first water injection pipe 9, the second water injection pipe 20 and the return pipe 10 is provided with A valve 91, B valve 201 and E valve 101. When D valve 61 and C valve 71 are closed and A valve 91, B valve 201 and E valve 101 are opened, a water injection channel can be formed.

The specific working process of the fish suction device is as follows:

1. Make preparations first: first integrate the entire fish suction device on a flat trolley 50, which can be applied to the hull or mobile platform 100, and the fish suction box 1 is fixedly connected to the flat trolley 50 through the box bracket 51 , the two form an integral structure, which not only makes the structure very compact, but also facilitates use and moving. At the same time, a power supply box 52 for supplying power to the water pump 4 is installed on the side of the water pump 4, and then the funnel of the fish inlet pipeline 2 Shape suction head 211 is put into net box 60.

2. Then fill the inside of the fish suction box 1 with water. At this time, you need to open the valve of the upper exhaust port 12 of the fish suction box 1 first, then close the D valve 61 and C valve 71 in turn, and open the A valve 91 and B valve 201 and E valve 101 to form a water injection channel, and finally open the water pump 4. Seawater enters the fish suction box 1 through the water pipe 7 through the E valve 101, through the pump 4, and then through the A valve 91 and the B valve 201. The air in the fish suction box 1 will be discharged from the exhaust port on the top of the fish suction box 1. When rising to the height of the upper end of the fish inlet pipeline 2, seawater will enter the rigid section of the fish inlet pipeline 2, and the air in the fish inlet pipeline 2 will be discharged together, which is conducive to improving the hydraulic vacuum degree in the casing.

After filling water in the fish suction box 1, close the valve of exhaust port 12, then close A valve 91, B valve 201 and E valve 101, open D valve 61 and C valve 71, form drainage passage. After a period of time, after a certain vacuum is formed in the fish suction box 1, the fish suction valve 23 is opened again, and the fish water will be constantly sucked in the fish suction box 1. Owing to being provided with a filter plate that can separate fish and water at the water outlet 13 places of suction fish box 1 low end, the seawater in the fish suction box 1 will be continuously discharged, and fish is left in the fish suction box 1.

Through the monitoring window 111 on the fish suction box 1, after finding that the fish in the fish suction box 1 reaches a certain amount, open the A valve 81 and the B valve 201, close the D valve 61, open the E valve 101, then close the C valve 71, and keep In the starting state of the water pump 4, the fish discharge valve 31 is opened at last to form a fish discharge passage. Seawater will pass through water pipe 7, through E valve 101, then enter suction fish tank 1 through water pump 4, first water injection pipe 9 and second water injection pipe 20, finally open fish discharge valve 31 and fish is discharged by discharge fish pipeline 3, will The fish is put into the live fish temporary breeding and storage and transportation box, so that the fish received can be temporarily raised and stored and transported very conveniently, and the above-mentioned operations are repeated until the fish in the net cage 60 are all caught. After running for a period of time, in order to prevent the filter plate at the water outlet 13 at the lower end of the fish suction box 1 from being blocked, you can close the A valve 91 and open the B valve 201 when the fish discharge passage is opened, so that the water can be passed through the second water injection pipe alone. 20 enters the fish suction box 1 to realize backwashing.

In order to ensure the survival rate of fish, the fish suction box 1 of the fish suction device and all surfaces that need to be in contact with fish must be smooth and level, without any protrusions and horns, so as to prevent fish from being injured and causing death. The end of the fish inlet pipeline 2 of the fish suction box 1 or the pipeline are equipped with an anti-sundre cover or an anti-sundre suction device to prevent various sundries from entering, so as to ensure the normal operation of the fish suction device, some accessory parts such as Interfaces, flanges, valves, etc., should be made of seawater corrosion-resistant stainless steel materials. Due to field operations, various equipment of the fish suction device should have good sealing and waterproof performance to ensure safe work and use of equipment Lifespan, and fish inlet pipeline 2 and fish row pipeline 3, should adopt the pipeline of the transparent property that can carry out visual fish and current flow when fish sucking device works.

Because the present embodiment is a mechanized operation, the amount of fish harvested per unit time is large, the fish harvest speed is fast, and the fish harvest time is short, so the work efficiency of fish harvest is high, and the survival rate of live fish is also greatly improved.

Claims (9)

1. A fish suction device, comprising a fish suction box (1), a fish inlet pipeline (2) and a fish discharge pipeline (3), the high end of the fish suction box (1) is provided with a fish suction port (11) and a fish discharge pipeline Air port (12), and the low-end position is provided with water outlet (13) and fish discharge mouth (14), and aforementioned fish inlet pipeline (2) is connected with the fish suction mouth (11) of suction fish box (1), and aforementioned The fish discharge pipeline (3) is provided with a fish discharge valve (31), and the aforementioned fish discharge pipeline (3) is connected with the fish discharge port (14) of the fish suction box (1), it is characterized in that: the described fish suction The tank (1) also has a water injection port (15), and the water outlet (13) is provided with a fish-water separation device; the fish suction device also includes a water pump (4), and the first end of the water pump (4) Connect with the water outlet (13) of the suction fish box (1) through the suction pipe (6), the second end is connected with the water pipe (7), and the third end is connected with the water injection port (15) of the aforementioned fish suction box (1) , the pumping pipeline (6), the water pipe (7), the exhaust port (12), the water injection port (15) and the fish inlet pipeline (2) are respectively provided with valves. 2. The fish sucking device according to claim 1, characterized in that: the fish sucking box (1) is inclined. 3. The fish suction device according to claim 1, characterized in that: a monitoring window (111) is provided at the upper end of the fish suction box (1) near the fish suction port (11). 4. The fish sucking device according to claim 1, characterized in that: the fish-water separation device is a filter plate capable of separating fish from water, and the filter plate is fixed at the water outlet (13). 5. The fish suction device according to claim 1, characterized in that: the third end of the water pump (4) passes through the first water injection pipe (9) and the water injection port (15) of the fish suction box (1) )connect. 6. The fish suction device according to claim 5, characterized in that: the first water injection pipe (9) is also connected to the fish suction box (1) through a second water injection pipe (20), wherein the first water injection pipe (9) One end of the two water injection pipes (20) is connected with the water pumping pipe (6). 7. The fish sucking device according to claim 1, characterized in that: a return pipe (10) is connected between the water pipe (7) and the water pump (4). 8. The fish sucking device according to claim 1, characterized in that: the fish inlet pipeline (2) comprises a flexible front section (21) and a rigid rear section (22) connected to each other, and the front section (21) The head has a funnel-shaped suction head (211), and the rear section (22) is connected with the fish suction port (11) of the fish suction box (1). 9. The fish suction device according to claim 8, characterized in that a fish suction valve (23) is arranged on the rear section (22).

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