A vacuum fish pump system for aquaculture fishing

Abstract

The present application relates to the technical field of fishery breeding equipment, and specifically discloses a vacuum fish suction pump system for aquaculture and fishing, which is provided with an electrode dizziness device in a fish suction pipeline. When fishing, the electrode dizziness device can cause the fish to be dizzied for a short time, so that the fish can avoid stress reaction and death or injury. A four-way valve is arranged between the water ring vacuum pump and the vacuum tank. During operation, the four-way valve is controlled to switch, so that the vacuum tank can be switched between negative pressure and positive pressure to realize fishing and discharging, thereby greatly reducing the overall structure of the vacuum fish suction pump system, simplifying the conversion structure, and facilitating later inspection and maintenance. The vacuum tank is also provided with a cleaning assembly. After fishing, the cleaning assembly can clean the inner side wall of the vacuum tank to ensure the cleanliness of the vacuum tank and prevent bacteria from breeding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fishery culture equipment, and particularly relates to a vacuum fish suction pump system for aquaculture fishing. BACKGROUND

[0002] With the development and progress of aquaculture, fishery culture equipment mechanization has become a trend of the times, and the traditional manual fishing method is low in efficiency, and the fisherman has a poor working environment and high labor intensity, and the existing equipment cannot meet the needs of modern aquaculture.

[0003] At present, the mechanical fishing method is more and more applied, but when the fishery is caught, the fishery often has a stress reaction, so that the fishery collides with each other and causes the fishery to die or be damaged.

[0004] And at present, the mechanical fishing method commonly used is to use a vacuum pump to generate negative pressure in a vacuum tank, and to suck fish from a pond into a fish storage container. Generally, a water ring vacuum pump is used as a power source, and in the process of achieving negative pressure and pressure increase of the vacuum tank, there are mainly two conversion methods: one is to convert through two three-way pneumatic valves, and the other is to increase an electromagnetic directional pneumatic valve or a pneumatic cylinder on the pipeline to achieve opening and closing of the valve, but this method causes the electromagnetic directional pneumatic valve or the pneumatic cylinder to be soaked in water for a long time, and there is a risk of damage and leakage of the seal. In addition, whether the three-way pneumatic valve or the electromagnetic directional pneumatic valve is used, an air compressor needs to be additionally increased as a power source of the control valve, so that the overall structure of the vacuum fish suction pump becomes large and complex, and the conversion structure is complex, which is not conducive to later inspection and maintenance.

[0005] The technical problem to be solved by the present application is to design a vacuum fish suction pump system for aquaculture fishing which can avoid the stress reaction of the fishery during fishing and has a simple structure and is convenient to operate, inspect, maintain and repair. SUMMARY

[0006] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide a vacuum fish suction pump system for aquaculture fishing which can avoid the stress reaction of the fishery during fishing and has a simple structure and is convenient to operate, inspect, maintain and repair.

[0007] The technical scheme adopted by the present application is: a vacuum fish suction pump system for aquaculture fishing, comprising a vacuum tank and a fish suction pipeline connected with the vacuum tank, the fish suction pipeline is provided with an electrode dizziness device for making the fishery dizzy to avoid stress reaction, and further comprising a water ring vacuum pump for drawing negative pressure and increasing pressure of the vacuum tank, and a four-way valve connected with each other between the water ring vacuum pump and the vacuum tank.

[0008] In some embodiments, the electrode stunner includes a positive electrode and a negative electrode respectively installed in the fish suction pipeline.

[0009] In some embodiments, the safe distance between the two ends of the fish suction pipeline and the electrode stunner is calculated according to the following equation set to obtain a specific safe distance l s :

[0010]

[0011] ρ s is the resistivity of seawater, P is the power of the safe distance pipe section, R s is the resistance of the safe distance pipe section, S is the cross-sectional area of the part of the fish suction pipeline where the electrode stunner is installed, Is is the current of the safe distance pipe section, and ΔU is the voltage required to be applied in the pipe section of the fish suction pipeline where the electrode stunner is installed.

[0012] ΔU=I0R d

[0013]

[0014] I0 is the current capable of electrifying the fish, R d is the resistance of the fish meat, l d are the lengths of the positive electrode and the negative electrode respectively, ρ f is the resistivity of the fish meat, σ f is the conductivity of the fish meat.

[0015] In some embodiments, the water ring vacuum pump is respectively provided with a suction port and an exhaust port, and the suction port and the exhaust port are respectively connected with a four-way valve.

[0016] In some embodiments, the four-way valve is respectively provided with a first connecting port and a second connecting port, the first connecting port is connected with the vacuum tank, the second connecting port is in communication with external air, when the water ring vacuum pump is in a negative pressure state, the suction port is in communication with the first connecting port and the exhaust port is in communication with the second connecting port, and when the water ring vacuum pump is in a pressurized state, the suction port is in communication with the second connecting port and the exhaust port is in communication with the first connecting port.

[0017] In some embodiments, the water ring vacuum pump is provided with a motor and a speed reducer in transmission connection with the motor, and the four-way valve is internally provided with a rotatably connected valve core, and the valve core is fixedly connected with a driving end of the speed reducer.

[0018] In some embodiments, one end of the fish suction pipeline is provided with a fish inlet, and the fish inlet is in a trumpet shape.

[0019] In some embodiments, the other end of the fish suction pipeline is provided with a fish inlet valve, the fish inlet valve is located in the vacuum tank, and the fish suction pipeline further has a fish inlet buffer piece corresponding to the fish inlet valve.

[0020] In some embodiments, a cleaning assembly is further arranged in the vacuum tank, which comprises a water inlet pipe extending into the vacuum tank and a rotating nozzle rotatably connected to one end of the water inlet pipe, and a plurality of water outlets are arranged on the rotating nozzle.

[0021] In some embodiments, a liquid level detection sensor is further arranged on the vacuum tank for detecting the liquid level inside the vacuum tank, and a fish outlet pipe is further arranged on the vacuum tank, and one end of the fish outlet pipe is provided with a fish outlet valve.

[0022] The present application has the following technical effects: by arranging an electrode dizziness device in the fish suction pipe, when fishing, the electrode dizziness device can cause the fish to be temporarily dizziness, so as to avoid the fish from being injured and killed due to stress reaction, and a four-way valve is arranged between the water ring vacuum pump and the vacuum tank, and only the switching of the four-way valve needs to be controlled during work, so as to realize the switching of the vacuum suction of the fish pump system, and the overall structure of the vacuum suction of the fish pump system is greatly reduced, and the conversion structure is also simplified, so as to facilitate operation, inspection and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure schematic diagram of the vacuum fish suction pump system for aquaculture fishing of the present application;

[0024] Figure 2 It is a vacuum state valve core position schematic diagram of the vacuum fish suction pump system for aquaculture fishing of the present application;

[0025] Figure 3 It is a pressure state valve core position schematic diagram of the vacuum fish suction pump system for aquaculture fishing of the present application;

[0026] Figure 4 It is a water ring vacuum pump and four-way valve structure schematic diagram of the vacuum fish suction pump system for aquaculture fishing of the present application;

[0027] Figure 5 It is a water ring vacuum pump and four-way valve structure schematic diagram of the vacuum fish suction pump system for aquaculture fishing of the present application;

[0028] Figure 6 It is a cleaning assembly schematic diagram of the vacuum fish suction pump system for aquaculture fishing of the present application.

[0029] The numbers and names in the figure correspond to each other as follows: 1. Vacuum tank; 2. Water ring vacuum pump; 3. Four-way valve; 4. Fish suction pipe; 20. Air intake; 21. Exhaust port; 30. First connection port; 31. Second connection port; 22. Motor; 23. Reducer; 32. Valve core; 40. Fish inlet; 41. Fish inlet valve; 42. Positive electrode; 43. Negative electrode; 5. Cleaning component; 50. Water inlet pipe; 51. Rotating nozzle; 52. Water outlet; 6. Liquid level detection sensor; 7. Fish outlet pipe; 70. Fish outlet valve; 8. Electrode stunner; 9. Cleaning water pump. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1-6 The present invention provides a technical solution: a vacuum fish suction pump system for aquaculture fishing, comprising a vacuum tank 1 and a water ring vacuum pump 2 for pumping negative pressure and pressurizing the vacuum tank 1, the vacuum tank 1 is provided with a connected fish suction pipe 4, an electrode stunner 8 is provided in the fish suction pipe 4, the electrode stunner 8 comprises electrode plates respectively installed in the fish suction pipe 4, the electrode plates comprise a positive electrode 42 and a negative electrode 43, the positive electrode 42 and the negative electrode 43 are both arc plates, and are respectively arranged on the inner wall of the fish suction pipe 4, by respectively arranging the positive electrode 42 and the negative electrode 43 on the inner wall of the fish suction pipe 4, when the fish-water mixture enters the fish suction pipe 4, the positive electrode 42 is at this time. A closed current loop is formed between the positive electrode 42 and the negative electrode 43. When fish pass through this current loop, the current will flow through the fish's body, thereby affecting its brain and nervous system, especially affecting the activity of its neurons, causing the fish to quickly lose consciousness and fall into a coma, thereby avoiding stress reactions in the fish during fishing operations, thereby avoiding collisions between the fish and causing casualties. The electrode stunner 8 also includes a control unit, which is mainly used to adjust the intensity and time of the current to adapt to fish of different sizes and types. The voltage of the electrode stunner 8 in the fish suction pipe 4 is calculated as follows:

[0032] Known seawater resistivity ρ s is 0.3~0.5Ω·m, the electrical conductivity of fish meat σ f The average is 1100μS / cm, the current I0 for stunning the fish is about 0.1A, the safe current for the human body is 10mA, and the diameter of the part of the fish suction pipe where the electrode stunner is installed is 200mm.

[0033] Fish meat resistivity p f is:

[0034]

[0035] The electrode plate length is 1 m, and the fish almost fills the pipeline during the vacuum capture process, so the resistance R of the part of the electrode disorientation device 8 installed in the fish suction pipeline 4 d The resistance of the fish meat can be regarded as:

[0036]

[0037] Where, l d is the electrode plate length; S is the cross-sectional area of the part of the electrode disorientation device 8 installed in the fish suction pipeline 4.

[0038] Therefore, the voltage ΔU required to be applied in the disorientation pipe section is:

[0039] ΔU = I0R d = 0.1 x 289.49 = 28.949 V

[0040] Calculation of safe distance of electrode disorientation device

[0041] In order to ensure the safety of workers during operation, it is necessary to calculate the safe distance between the two ends of the fish suction pipeline 4 and the electrode disorientation device 8 during operation. When the current is reduced to 10 mA, it is considered as a safe area, so according to the voltage drop formula, the safe distance l s can be calculated according to the equation group:

[0042]

[0043] Solving the equation group gives: l s = 3.84 m

[0044] Where, p s is the seawater resistivity, taking the maximum value of 0.5 Ω·m; P is the power of the safe distance pipe section; R s is the resistance of the safe distance pipe section; Is is the current of the safe distance pipe section, so during the disorientation fish suction operation, the distance between the two ends of the fish suction pipeline 4 and the electrode disorientation device is more than 3.84 m, which belongs to the safe range of human body.

[0045] One end of the fish suction pipe 4 is provided with a fish inlet 40 which is trumpet-shaped. By making the fish inlet 40 trumpet-shaped, when the fish suction pipe 4 starts to suction and catch the fish, the trumpet-shaped fish inlet 40 can guide the fish, so as to avoid the fish being damaged due to being blocked in the fish inlet 40. The other end of the fish suction pipe 4 is provided with a fish inlet valve 41. Since the end of the fish suction pipe 4 provided with the fish inlet valve 41 extends into the vacuum tank 1, the fish inlet valve 41 is located in the vacuum tank 1 and is rotationally connected with the fish suction pipe 4. The diameter of the fish inlet valve 41 is larger than the diameter of the fish suction pipe 4. Therefore, when the fish is not being suctioned, the fish inlet valve 41 is lowered and rests on the end of the fish suction pipe 4 due to its own gravity, so as to close the end of the fish suction pipe 4 which extends into the vacuum tank 1. The end of the fish suction pipe 4 corresponding to the fish inlet valve 41 is also provided with a fish inlet buffer. By providing the fish inlet buffer, when the fish is suctioned by the fish suction pipe 4 and then discharged from the end of the fish inlet valve 41 into the vacuum tank 1, the fish inlet buffer can buffer the fish discharged from the fish suction pipe 4, so as to avoid the fish directly falling into the vacuum tank 1 and being damaged due to collision. The other side of the vacuum tank 1 is also provided with a fish outlet pipe 7 connected therewith. One end of the fish outlet pipe 7 is connected to the vacuum tank 1, and the other end is provided with a fish outlet valve 70. The fish outlet valve 70 is also rotationally connected with the one end of the fish outlet pipe 7. The fish outlet valve 70 and the fish inlet valve 41 have the same structure. When the fish is not being discharged, the fish outlet valve 70 is lowered and rests on the end of the fish outlet pipe 7 due to its own gravity, so as to close the fish outlet pipe 7.

[0046] A four-way valve 3 is arranged between the water ring vacuum pump 2 and the vacuum tank 1, the four-way valve 3 is provided with a first connecting port 30 and a second connecting port 31, the first connecting port 30 is connected with the vacuum tank 1, the second connecting port 31 is communicated with the outside air, when the water ring vacuum pump 2 is in the state of negative pressure, the suction port 20 is communicated with the first connecting port 30 and the exhaust port 21 is communicated with the second connecting port 31, when the water ring vacuum pump 2 is in the state of pressure, the suction port 20 is communicated with the second connecting port 31 and the exhaust port 21 is communicated with the first connecting port 30, a motor 22 and a speed reducer 23 driven by the motor 22 are further arranged on the water ring vacuum pump 2, a valve core 32 rotatingly connected is arranged in the four-way valve 3, the valve core 32 is fixedly connected with the driving end of the speed reducer 23, when the fishing work is started, the vacuum tank 1 needs to be adjusted to the state of vacuum, so that the pressure difference is formed between the vacuum tank 1 and the outside air, so that the fish is sucked into the vacuum tank 1 from the fish suction pipeline 4 due to the pressure difference, so the motor 22 controls the speed reducer 23 to start, the valve core 32 is driven to rotate by the speed reducer 23, so that the suction port 20 of the water ring vacuum pump 2 is communicated with the first connecting port 30 of the four-way valve 3, and the exhaust port 21 of the water ring vacuum pump 2 is communicated with the second connecting port 31, at this time, the water ring vacuum pump 2 is started, because the first connecting port 30 is communicated with the inside of the vacuum tank 1, so the air in the vacuum tank 1 is sucked out through the first connecting port 30 by the suction port 20, because the suction port 20 and the exhaust port 21 are mutually penetrated, and the water ring vacuum pump 2 can only guide the air in one direction, so the air in the vacuum tank 1 is sucked out by the suction port 20 through the first connecting port 30, then is discharged by the exhaust port 21, and then is discharged to the air through the second connecting port 31, at this time, the vacuum tank 1 is in the state of negative pressure, because the pressure in the vacuum tank 1 is too low at this time, and one end of the fish outlet valve 70 of the fish outlet pipeline 7 is outside the vacuum tank 1, so at this time, due to the pressure difference between the outside air and the vacuum tank 1, the fish outlet valve 70 is pressed on the fish outlet pipeline 7 due to the outside pressure and its own gravity, so that the fish outlet pipeline 7 is always closed, and the fish inlet valve 41 on the fish suction pipeline 4 is in the vacuum tank 1, at this time, because the pressure in the vacuum tank 1 is too low, the outside pressure is greater than the pressure in the vacuum tank 1, and the fish suction pipeline 4 connects the inside of the vacuum tank 1 with the outside water surface and the atmospheric pressure, when the outside pressure is greater than the pressure in the vacuum tank 1, at this time, the fish and water mixture enters the fish suction pipeline 4 from the fish inlet 40, the fish inlet valve 41 is automatically opened under the push of the fish and water, the fish and water mixture falls on the fish inlet buffer piece, and then falls into the vacuum tank 1, so that the fish suction process in the fishing process is completed, a liquid level detection sensor 6 is further arranged on the vacuum tank 1, as the fish and water mixture in the vacuum tank 1 becomes more and more, when the liquid level detection sensor 6 installed on the upper side of the vacuum tank 1 detects the liquid level, a signal is sent to the control box, at this time, the control box sends an instruction to the motor 22, so as to control the speed reducer 23 to rotate the valve core 32, so that the vacuum state in the vacuum tank 1 changes to the state of pressure,When the water ring vacuum pump 2 is in the pressurized state, the suction port 20 of the water ring vacuum pump 2 is communicated with the second connecting port 31, and the exhaust port 21 is communicated with the first connecting port 30, so that the air outside is sucked into the second connecting port 31 through the suction port 20 and then discharged from the exhaust port 21, and the air discharged from the exhaust port 21 is discharged into the vacuum tank 1 through the first connecting port 30, thereby realizing the pressurization process in the vacuum tank 1. When the vacuum tank 1 is in the pressurization process, the pressure in the vacuum tank 1 increases, and the fish suction pipeline 4 stops sucking the fish and water. When the pressure in the vacuum tank 1 is greater than the external air pressure, the fish inlet valve 41 is pressed and sealed on the fish suction pipeline 4 due to the pressure in the vacuum tank 1 being greater than the external air pressure, thereby sealing the fish suction pipeline 4. The fish outlet valve 70 is automatically opened due to the pressure in the vacuum tank 1 and the pressure of the fish-water mixture, and then the fish-water mixture in the vacuum tank 1 is discharged from the fish outlet pipeline 7, thereby completing the fish discharging process in the fishing process. By arranging the four-way valve 3 only between the vacuum tank 1 and the water ring vacuum pump 2, the negative pressure or pressurization switching in the vacuum tank 1 can be realized by adjusting the rotation of the valve core 32 in the four-way valve 3, thereby realizing the fishing and discharging processes of the fishery catch, and greatly reducing the overall structure of the entire vacuum fish suction system. The four-way valve 3 also serves as a conversion structure, which greatly simplifies the structure and is more conducive to later inspection and maintenance.

[0047] Because the fish-water mixture is first sucked into the vacuum tank 1, after the vacuum tank 1 is used, various sludge, fish scales or other impurities will remain on the inner wall of the vacuum tank 1, which will breed bacteria if not cleaned for a long time. Therefore, the cleaning assembly 5 is arranged in the vacuum tank 1, which includes the water inlet pipeline 50 extending into the vacuum tank 1 and the rotating spray head 51 rotatably connected to one end of the water inlet pipeline 50. A plurality of water outlets 52 are arranged on the rotating spray head 51 and embedded in the rotating spray head 51 to avoid sharp corners of the rotating spray head 51 causing damage to the fishery catch. The water outlets 52 have different directions and a spraying surface of 40°. The rotating spray head 51 can rotate 360° around the water inlet pipeline 50. The other end of the water inlet pipeline 50 is connected to the cleaning water pump 9. When the vacuum tank 1 needs to be cleaned, the cleaning water pump 9 is used to pump water into the water inlet pipeline 50, and then the water is sprayed from the rotating spray head 51. When the water pressure is too high, the rotating spray head 51 will rotate around the water inlet pipeline 50, so that the water sprayed from the water outlets 52 can clean the side wall of the vacuum tank 1 comprehensively to ensure the cleanliness of the vacuum tank 1 and prevent the breeding of bacteria. In addition, the rotating spray head 51 can be flexibly arranged and distributed according to the size of the tank body and is suitable for tanks of various capacities.

[0048] The beneficial effects of the present application are: by arranging the electrode dizziness device 8 in the fish suction pipeline 4, when fishing, the electrode dizziness device 8 can cause the fish to be dizziness for a short time, so as to avoid the fish from being injured and killed due to stress reaction, and in order to ensure the safety of the staff during operation, the system will automatically calculate the safety distance between the two ends of the fish suction pipeline 4 and the electrode dizziness device 8 before operation, so as to ensure the safety of the staff during operation, the four-way valve 3 is arranged between the water ring vacuum pump 2 and the vacuum tank 1, and only the switching of the four-way valve 3 needs to be controlled during operation, so as to realize the switching of the negative pressure and pressure in the vacuum tank 1, so as to realize the fishing and discharge of the fish, thereby greatly reducing the overall structure of the vacuum fish suction pump system, and the conversion structure is also simplified, thereby facilitating the later inspection and maintenance, and the cleaning assembly 5 is arranged in the vacuum tank 1, and when the fishing is completed, the cleaning assembly 5 can clean the inner side wall of the vacuum tank, so as to ensure the cleanliness of the vacuum tank and avoid the breeding of bacteria.

[0049] Finally, it should be noted that the above is only the preferred examples of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing examples, those skilled in the art can still modify the technical solutions recorded in the foregoing examples, or replace some technical features with equivalent ones. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A vacuum fish pump system for aquaculture fishing, characterized by, The invention relates to a fish suction device comprising a vacuum tank and a fish suction pipe connected to the vacuum tank, wherein an electrode stunner for stunning the fish to avoid stress reaction is arranged in the fish suction pipe, and a water ring vacuum pump for drawing negative pressure and positive pressure in the vacuum tank is arranged, wherein a four-way valve is arranged between the water ring vacuum pump and the vacuum tank, and the electrode stunner comprises a positive electrode and a negative electrode arranged in the fish suction pipe respectively, and the safety distance between the two ends of the fish suction pipe and the electrode stunner is calculated according to the following equation set : ， p s is the seawater resistivity, P is the power of the safety distance pipe section, R s is the resistance of the safety distance pipe section, S is the cross-sectional area of the portion of the fish suction pipe in which the electrode stunner is installed, Is is the current of the safety distance pipe section, wherein is the voltage required to be applied in the portion of the fish suction pipe in which the electrode stunner is installed, ， I0 is the current that can be passed through the fish corona, R d is the resistance of the fish meat, l d are the lengths of the positive and negative electrodes, respectively, p f is the resistivity of the fish meat, is the conductivity of the fish meat.

2. A vacuum fish pump system for mariculture fishing according to claim 1, characterized in that, The water ring vacuum pump is respectively provided with a suction port and an exhaust port communicated with the suction port, and the suction port and the exhaust port are respectively connected with a four-way valve.

3. A vacuum fish pump system for mariculture fishing according to claim 2, characterized in that, The four-way valve is respectively provided with a first connecting port and a second connecting port, the first connecting port is connected with a vacuum tank, the second connecting port is communicated with external air, the suction port is communicated with the first connecting port and the exhaust port is communicated with the second connecting port when the water ring vacuum pump is in a negative pressure state, and the suction port is communicated with the second connecting port and the exhaust port is communicated with the first connecting port when the water ring vacuum pump is in a pressurization state.

4. The vacuum fish pump system for mariculture fishing according to claim 1, characterized in that, A motor and a speed reducer driven by the motor are arranged on the water ring vacuum pump, and a valve core rotatingly connected is arranged in the four-way valve, and the valve core is fixedly connected with a driving end of the speed reducer.

5. The vacuum fish pump system for mariculture fishing according to claim 1, characterized in that, One end of the fish suction pipeline is provided with a fish inlet, and the fish inlet is in a horn shape.

6. The vacuum fish pump system for mariculture fishing according to claim 1, characterized in that, The other end of the fish suction pipeline is provided with a fish inlet valve, the fish inlet valve is located in the vacuum tank, and the fish suction pipeline is further provided with a fish inlet buffer plate corresponding to the fish inlet valve.

7. The vacuum fish pump system for mariculture fishing according to claim 1, characterized in that, The vacuum tank is further provided with a cleaning assembly, the cleaning assembly comprises a water inlet pipe extending into the vacuum tank and a rotating nozzle rotatingly connected with one end of the water inlet pipe, and a plurality of water outlets are arranged on the rotating nozzle.

8. The vacuum fish pump system for mariculture fishing according to claim 1, characterized in that, The vacuum tank is further provided with a liquid level detection sensor for detecting the liquid level in the vacuum tank, and the vacuum tank is further provided with a fish outlet pipe connected therewith, and one end of the fish outlet pipe is provided with a fish outlet valve.

Images