CN116076459A - Automatic fish sucking method - Google Patents
Automatic fish sucking method Download PDFInfo
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- CN116076459A CN116076459A CN202211488536.3A CN202211488536A CN116076459A CN 116076459 A CN116076459 A CN 116076459A CN 202211488536 A CN202211488536 A CN 202211488536A CN 116076459 A CN116076459 A CN 116076459A
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- fish
- collecting tank
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- pipe
- water
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K79/00—Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention relates to the technical field of fishery cultivation equipment, in particular to an automatic fish sucking method, which comprises the following steps: s1, preparing work; s2, pumping; s3, starting a centrifugal pump and sucking fish; s4, fish discharging; s5, repeating the steps S2-S4 to realize uninterrupted fish sucking and discharging, and closing the centrifugal pump, the vacuum pump and all valves after the fish sucking and discharging are finished; the invention adopts a common centrifugal pump and a vacuum pump, thereby reducing the cost of mechanical research and development; in the whole process of sucking and discharging fish, the fish does not pass through the running centrifugal pump, so that mechanical damage is avoided, when the fish enters the fish collecting tank, the fish can be naturally distributed in the fish collecting tank due to small disturbance of the water body below the fish inlet and outlet in the fish collecting tank, damage caused by mutual friction and collision among the fish is avoided, and the fish sucking device is simple and flexible to operate and strong in controllability.
Description
Technical Field
The invention relates to the technical field of fishery cultivation equipment, in particular to an automatic fish sucking method.
Background
The fish pump is taken as a modern fishery device, plays an important role in the fishing link, and is widely applied at home and abroad.
There are three main types of fish pumps currently used worldwide: centrifugal, vacuum, and jet. The centrifugal fish pump has the advantages of high efficiency, special requirements on the structural form of the pump, high fish loss rate caused by the fact that fish passes through a high-speed running part, and inapplicability to sucking large-size live fish; the vacuum fish pump has the advantages that the structure is simple, the fish does not pass through the operation part, the working efficiency is low, and the high-speed water flow mixed with the fish can cause severe disturbance to the water body in the fish collecting barrel after entering the fish collecting barrel, so that the probability of damage of the fish due to friction and collision is increased; the jet flow type fish suction pump has high energy consumption, lower efficiency and less application.
Therefore, how to ensure the damage-free and high-efficiency fish body at the same time is a technical problem to be solved in the field of fish sucking pumps.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the automatic fish sucking method which is simple to operate, free of damage to fish bodies and high in working efficiency.
The invention provides an automatic fish sucking method, which comprises the following steps:
s1, preparing:
immersing a fish suction pipe of a fish collecting tank into a fish water mixture, wherein the fish collecting tank is connected with a water inlet pipe of a centrifugal pump, a water outlet pipe of the centrifugal pump is communicated with a water inlet pipe of a vacuum pump, and an exhaust valve communicated with the outside atmosphere on a water outlet pipe of the vacuum pump is opened;
s2, pump filling:
starting a vacuum pump, enabling water or a fish water mixture to enter the fish collecting tank through a fish inlet pipe, and enabling water to sequentially enter the water inlet pipe, the centrifugal pump and the water outlet pipe through a water outlet above the fish collecting tank after the fish collecting tank is full;
s3, starting a centrifugal pump and sucking fish:
when the water level in the water outlet pipe reaches a certain height, the centrifugal pump is started, a passage between the water outlet pipe of the centrifugal pump and the air inlet pipe of the vacuum pump is disconnected, a shutoff valve between the water outlet pipe and an external water body is opened, an extraction valve communicated with the outside by the air inlet pipe of the vacuum pump is opened, and water in the fish collection tank is discharged into the external water body through the water inlet pipe, the centrifugal pump and the water outlet pipe in sequence;
s4, fish discharging:
after the centrifugal pump runs for a certain time, closing the centrifugal pump to enable the fish collecting tank to be communicated with the outside atmosphere, opening a fish discharging valve on a fish discharging pipe at the bottom of the fish collecting tank, closing the fish discharging valve after all fish water in the fish collecting tank is discharged, and blocking the communication between the fish collecting tank and the outside atmosphere;
s5, repeating the steps S2-S4 to realize uninterrupted fish sucking and discharging, and closing the centrifugal pump, the vacuum pump and all valves after the fish sucking and discharging are finished.
According to the automatic fish sucking method, a common centrifugal pump and a vacuum pump are adopted, so that the mechanical research and development cost is reduced; in the whole process of sucking and discharging fish, the fish does not pass through an operating machine, so that mechanical damage is avoided, when the fish enters the fish collecting tank, the fish can be naturally distributed in the fish collecting tank due to small disturbance of the water body below the fish inlet and outlet in the fish collecting tank, damage caused by mutual friction and collision among the fish is avoided, and the fish sucking device is simple and flexible to operate and strong in controllability.
In some embodiments of the present application, when the height of the fish receiving tank is higher than the height of the fish outlet of the fish collecting tank, the fish collecting tank needs to be pressurized, so that the fish is discharged into the fish receiving tank located at a high position under pressure when the fish is flushed out of the fish discharging pipe, in step S4, after the centrifugal pump operates for a certain time, the centrifugal pump is closed, the fish discharging valve on the fish discharging pipe is opened, and the fish collecting tank is pressurized, so that the fish in the fish collecting tank is discharged into the fish receiving tank higher than the height of the fish outlet of the fish collecting tank under the action of the pressure, after one fish discharging operation is completed, the fish discharging valve is closed, and the pressurizing of the fish collecting tank is stopped; repeating the steps S2-S4 to realize uninterrupted fish sucking and fish discharging to the high place.
In some embodiments of the present application, in step S4, the vacuum pump is used to pressurize the fish collection tank, specifically, the centrifugal pump is closed, after the fish discharge valve is opened, the air outlet pipe of the vacuum pump is communicated with the fish collection tank, the air outlet valve on the air outlet pipe of the vacuum pump is closed, and the fish inlet valve on the fish suction pipe is closed, and the air in the external atmosphere is pumped by the vacuum pump to sequentially pass through the air extraction valve, the air inlet pipe, the vacuum pump and the air outlet pipe enter the fish collection tank, so as to pressurize the fish water in the fish collection tank.
In some embodiments of the present application, in step S3, the start of the centrifugal pump is controlled by a liquid level switch disposed on the water outlet pipe, and when the water level in the water outlet pipe reaches the height of the liquid level switch, the liquid level switch is triggered to start the centrifugal pump in a linkage manner.
In some embodiments of the present application, a water outlet pipe of the centrifugal pump is further provided with a regulating valve, and the fish sucking speed is regulated by regulating the opening of the regulating valve.
In some embodiments of the present application, a speed reducing component capable of reducing the speed of a fish water mixture is disposed in the fish collection tank, the speed reducing component includes a fish inlet pipe and a fish inlet outlet located at the top of the fish inlet pipe, the fish inlet outlet is of a horn structure with a narrow lower part and a wide upper part, when fish passes through the fish inlet outlet, the speed of the fish can be reduced, the fish is prevented from being damaged by collision with the inner wall of the fish collection tank, the bottom of the fish inlet pipe is connected with a fish suction port of the fish collection tank, the fish suction port is connected with the fish suction pipe, and the fish passes through the fish suction pipe, the fish suction port, the fish inlet pipe and the fish inlet outlet enter the fish collection tank; the bottom of the fish collecting tank is elliptical, dish-shaped or conical, so that the fish water in the fish collecting tank can be conveniently discharged.
In some embodiments of the present application, a water outlet is provided above the fish collection tank, and a fish blocking member is provided below the water outlet, the fish blocking member preventing fish from entering the centrifugal pump from the water outlet.
In some embodiments of the application, a vent pipe communicated with the external atmosphere is further arranged above the fish gathering tank, a vent valve is arranged on the vent pipe, the vent valve controls the on-off of the fish gathering tank and the external atmosphere, a pressure discharge valve is arranged on a connecting pipe of the vent pipe and an air outlet pipe of the vacuum pump, and when the pressure discharge valve is opened, the vacuum pump is used for inflating and pressurizing the fish gathering tank.
In some embodiments of the present application, a fish sucking valve is disposed on the fish sucking pipe, and a fish discharging valve is disposed on the fish discharging pipe; the centrifugal pump is characterized in that a water outlet pipe of the centrifugal pump is provided with a shutoff valve, an air suction valve for controlling the air suction pipe to suck air from the outside is arranged on an air inlet pipe of the vacuum pump, and an air outlet pipe of the vacuum pump is provided with an air outlet valve for controlling the air outlet pipe to exhaust air to the outside.
In some embodiments of the present application, the centrifugal pump, the vacuum pump, the shut-off valve, the vent valve, the pressure discharge valve, the extraction valve, the exhaust valve, the fish discharge valve, the fish inlet valve are in signal connection with a control cabinet and are controlled by the linkage of the control cabinet.
Based on the technical scheme, the automatic fish sucking method provided by the invention adopts a common centrifugal pump and a vacuum pump, so that the mechanical research and development cost is reduced; in the whole process of sucking and discharging fish, the fish does not pass through an operating centrifugal pump, so that mechanical damage is avoided, when the fish enters the fish collecting tank, the fish can be naturally distributed in the fish collecting tank due to small disturbance of partial water below a fish inlet and outlet in the fish collecting tank, damage caused by mutual friction and collision among the fish is avoided, the operation is simple and flexible, and the controllability is strong;
the speed reducing component reduces the speed of fish entering the fish collecting tank, and avoids damage caused by collision between excessive fish speed and the inner wall of the fish collecting tank;
according to the actual working condition, the fish sucking speed of the system can be changed by changing the opening of the regulating valve, the single fish sucking time can be regulated, and the operation is flexible and the elasticity is high;
the whole process of sucking and discharging fish has high automation degree and high reliability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of an automatic fish sucking system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing the flow direction of gas during pumping according to an embodiment of the present invention;
FIG. 3 is a schematic diagram showing the flow direction of gas and water during the process of sucking fish according to the embodiment of the invention;
FIG. 4 is a schematic diagram showing the flow of air when the fish is discharged to the high place according to another embodiment of the present invention.
In the drawing the view of the figure,
10. a fish collection tank; 11. a vent; 111. a vent pipe; 112. a vent valve; 12. a water outlet; 121. a fish blocking component; 13. a fish sucking port; 131. a fish inlet valve; 132. a fish suction pipe; 14. a fish discharging port; 141. a fish discharging valve; 142. a fish discharging pipe; 15. a speed reducing member; 151. a fish inlet pipe; 152. a fish inlet and a fish outlet; 20. a centrifugal pump; 21. a water inlet pipe; 22. a water outlet pipe; 223. a shut-off valve; 23. a first pipeline; 24. a liquid level switch; 25. a regulating valve; 30. a vacuum pump; 31. an air outlet pipe; 311. an exhaust valve; 312. a pressure discharge valve; 32. an air inlet pipe; 321. an extraction valve; 322. an evacuation valve; 33. and a second pipeline.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The automatic fish sucking method in the embodiment is suitable for an automatic fish sucking system as shown in fig. 1. As shown in fig. 1, the automatic fish sucking system includes:
the fish collecting tank 10 is provided with a sealed cavity capable of containing fish water, a water outlet 12 and a vent 11 are arranged above the fish collecting tank 10, a fish sucking port 13 and a fish discharging port 14 are arranged below the fish collecting tank, the fish sucking port 13 is connected with a fish sucking pipe 132, and the fish discharging port 14 is connected with a fish discharging pipe 142;
a centrifugal pump 20, a water inlet pipe 21 of the centrifugal pump 20 is connected with the water outlet 12 of the fish gathering tank 10, a water outlet pipe 22 of the centrifugal pump 20 extends to the external water body, and the centrifugal pump 20 is used for pumping and discharging water in the fish gathering tank 10 to the external water body;
the vacuum pump 30, the air outlet pipe 31 of the vacuum pump 30 is connected with the air vent 11 of the fish gathering tank 10, the vacuum pump 30 pumps the air in the fish gathering tank 10 or charges air into the fish gathering tank 10 for pressurization;
the air inlet pipe 32 of the vacuum pump 30 is communicated with the water outlet pipe 22 of the centrifugal pump 20 through a first pipeline 23, an evacuating valve 322 for controlling the on-off of the first pipeline 23 is arranged on the first pipeline 23, a liquid level switch 24 is further arranged on the water outlet pipe 22 of the centrifugal pump 20, the evacuating valve 322 is opened, the vacuum pump 30 is started, air in the fish collecting tank 10 sequentially passes through the water outlet 12, the water inlet pipe 21, the centrifugal pump 20, the water outlet pipe 22, the first pipeline 23, the air inlet pipe 32, the vacuum pump 30 and the air outlet pipe 31 and is discharged into the external atmosphere, along with the gradual reduction of the air in the fish collecting tank 10, a fish water mixture enters the fish collecting tank 10 from a fish suction port, when the fish water mixture in the fish collecting tank 10 is full, along with the continuous air suction of the vacuum pump 30, water in the fish collecting tank 10 sequentially passes through the water outlet 12, the water inlet pipe 21 and the centrifugal pump 20 and enters the water outlet pipe 22, and when the water level in the water outlet pipe 22 reaches the liquid level switch 24, the centrifugal pump 20 is triggered and started.
The water outlet pipe 22 of the centrifugal pump 20 is further provided with a regulating valve 25, the fish sucking speed is changed by changing the opening of the regulating valve 25, in this embodiment, the regulating valve 25 is a manual regulating valve, and the opening of the valve can be manually regulated according to the actual working condition, so that the water outlet speed of the water outlet pipe 22 is regulated, and the fish sucking speed is regulated.
In order to avoid fish damage generated in the process of sucking fish, a speed reducing component 15 is arranged in the fish collecting tank 10, the speed reducing component 15 comprises a fish inlet pipe 151 and a fish inlet outlet 152 positioned at the top of the fish inlet pipe 151, as shown in fig. 1, the fish inlet pipe 151 comprises an elbow connected with the fish sucking port 13 and a straight pipe extending vertically and upwards and positioned above the elbow, and the elbow is preferably a 45-degree elbow or an elbow with a large curvature radius; the fish inlet outlet 152 is fixed at the top of the straight pipe, the fish inlet outlet 152 is of a horn-shaped structure with a narrow lower part and a wide upper part, the fish water mixture sequentially passes through the fish suction port 13, the fish inlet pipe 151 and the fish inlet outlet 152 enter the fish collecting tank 10, and when fish passes through the fish inlet outlet 152, the caliber of the fish inlet outlet 152 is gradually increased, the speed of the fish water mixture is gradually reduced, and the fish can be prevented from being damaged by collision with the inner wall of the fish collecting tank 10.
A fish blocking member 121 is provided below the water outlet 12 of the fish collection tank 10, the fish blocking member 121 preventing fish from entering the centrifugal pump 20 from the water outlet, and in this embodiment, the fish blocking member 121 is a fish blocking net.
In order to facilitate the fish collecting tank 10 to smoothly discharge fish into the low fish receiving pond, the vent 11 above the fish collecting tank 10 is connected with a vent pipe 111 communicated with the external atmosphere, the vent pipe 111 is provided with a vent valve 112, the vent valve 112 controls the on-off of the fish collecting tank 10 and the external atmosphere, the second pipeline 33 communicated with the vent pipe 111 and the air outlet pipe 31 of the vacuum pump 30 is provided with a discharge pressing valve 312, and when the discharge pressing valve 312 is opened, the vacuum pump 30 charges and pressurizes the fish collecting tank 10.
A shutoff valve 223 is arranged on the water outlet pipe 22 of the centrifugal pump 20, an air suction valve 321 for controlling the air suction pipe 32 to suck air from the outside is arranged on the air inlet pipe 32 of the vacuum pump 30, and an air outlet valve 311 for controlling the air outlet pipe 31 to exhaust air to the outside is arranged on the air outlet pipe 31 of the vacuum pump 30; the fish sucking pipe 132 is provided with a fish sucking valve 131, and the fish discharging pipe 142 is provided with a fish discharging valve 141.
As one embodiment of the invention, when the fish receiving pond is positioned below the fish collecting tank, the method for sucking fish by using the automatic fish sucking system comprises the following steps:
s1, preparing:
immersing a fish suction pipe 132 of the fish gathering tank 10 into a fish water mixture, opening a fish inlet valve 131, communicating a water outlet 12 of the fish gathering tank 10 with a water inlet pipe 21 of a centrifugal pump 20, regulating a regulating valve 25 to be fully opened, closing a pressure discharge valve 312 on a second pipeline 33, opening an evacuation valve 322 on a first pipeline 23, enabling a water outlet pipe 22 of the centrifugal pump 20 to be communicated with an air inlet pipe 32 of a vacuum pump 30, opening an exhaust valve 311 on an air outlet pipe 31 of the vacuum pump 30 to be communicated with the outside atmosphere, and closing other valves;
s2, pump filling:
starting a vacuum pump 30, as shown in fig. 2, discharging air in the fish-collecting tank 10 into the outside atmosphere sequentially through a water outlet 12, a water inlet pipe 21, a centrifugal pump 20, a water outlet pipe 22, a first pipeline 23, an air inlet pipe 32, the vacuum pump 30 and an air outlet pipe 31, wherein as the air in the fish-collecting tank 10 gradually decreases, water or a fish-water mixture enters the fish-collecting tank 10 from a fish suction pipe 132, a fish suction port 13 and a speed reducing part 15, and when the air in the fish-collecting tank 10 is completely discharged, the water sequentially enters the water inlet pipe 21, the centrifugal pump 20 and the water outlet pipe 22 through the water outlet 12 above the fish-collecting tank 10 when the fish-water mixture is filled in the fish-collecting tank 10;
s3, starting a centrifugal pump to suck fish:
when the water level in the water outlet pipe 22 reaches the height of the liquid level switch 24, the liquid level switch 24 transmits a signal to a control cabinet (not shown in the figure), the control cabinet starts the centrifugal pump 20, closes the evacuation valve 322, disconnects the passage between the water outlet pipe 22 of the centrifugal pump 20 and the air inlet pipe 32 of the vacuum pump 30, opens the air extraction valve 321 for communicating the air inlet pipe 32 of the vacuum pump 30 with the outside, and opens the shutoff valve 223 between the water outlet pipe 22 and the external water body, so that the water in the fish gathering tank 10 is discharged from the water outlet pipe 22 of the centrifugal pump 20;
the water in the fish gathering tank 10 is discharged into the external water body through the water inlet pipe 21, the centrifugal pump 20 and the water outlet pipe 22 in sequence; as shown in fig. 3 (thin arrow); as the centrifugal pump 20 always works, the water in the fish collecting tank 10 is continuously discharged to the external water body, the fish water mixture always enters the fish collecting tank 10 along the fish sucking pipe 132 and the fish sucking port 13, and the speed reducing part 15 realizes the fish sucking operation; at this time, the vacuum pump 30 is in an operating state, but air sucked by the suction valve 321 enters the vacuum pump 30 through the air inlet pipe 32, is discharged into the atmosphere through the air outlet pipe 31 and the air outlet valve 311, and does not participate in the fish sucking operation as shown in fig. 3 (thick arrow).
In the process of sucking fish, when fish passes through the fish inlet and outlet 152 of the speed reducing component 15, the caliber of the fish inlet and outlet 152 is gradually increased, the speed of the fish water mixture is gradually reduced, and the fish can be prevented from being damaged due to collision with the inner wall of the fish collecting tank 10.
S4, fish discharging:
after the centrifugal pump 20 runs for a certain time, when the fish in the fish collecting tank 10 is more, the centrifugal pump 20 is closed, the ventilation valve 112 is opened to enable the fish collecting tank 10 to be communicated with the outside atmosphere, the fish discharging valve 141 on the fish discharging pipe 142 at the bottom of the fish collecting tank 10 is opened, fish water in the fish collecting tank 10 enters a fish receiving pond positioned below along the fish discharging port 14 and the fish discharging pipe 142 under the action of self gravity, after all the fish water in the fish collecting tank 10 is discharged, the fish discharging valve 141 is closed, and the ventilation valve 112 is closed to block the communication between the fish collecting tank and the outside atmosphere; completing a primary fish sucking and discharging process;
s5, repeating the steps S2-S4 to realize uninterrupted fish suction and fish discharge to the lower part, and closing the centrifugal pump 20, the vacuum pump 30 and all valves after the fish suction is finished.
As another embodiment of the present invention, when the fish receiving pond exceeds the fish outlet 14 of the fish gathering tank 10 by a certain height, the fish water cannot be discharged into the fish receiving pond under the action of self gravity, so when the fish receiving pond is at a high place, the method for sucking fish by using the automatic fish sucking system comprises the following steps:
s1, preparing:
immersing a fish suction pipe 132 of the fish gathering tank 10 into a fish water mixture, opening a fish inlet valve 131, communicating a water outlet 12 of the fish gathering tank 10 with a water inlet pipe 21 of a centrifugal pump 20, regulating a regulating valve 25 to be fully opened, closing a pressure discharge valve 312 on a second pipeline 33, opening an evacuation valve 322 on a first pipeline 23, enabling a water outlet pipe 22 of the centrifugal pump 20 to be communicated with an air inlet pipe 32 of a vacuum pump 30, opening an exhaust valve 311 on an air outlet pipe 31 of the vacuum pump 30 to be communicated with the outside atmosphere, and closing other valves;
s2, pump filling:
starting a vacuum pump 30, as shown in fig. 2, discharging air in the fish-collecting tank 10 into the outside atmosphere sequentially through a water outlet 12, a water inlet pipe 21, a centrifugal pump 20, a water outlet pipe 22, a first pipeline 23, an air inlet pipe 32, the vacuum pump 30 and an air outlet pipe 31, wherein as the air in the fish-collecting tank 10 gradually decreases, water or a fish-water mixture enters the fish-collecting tank 10 from a fish suction pipe 132, a fish suction port 13 and a speed reducing part 15, and when the air in the fish-collecting tank 10 is completely discharged, the water sequentially enters the water inlet pipe 21, the centrifugal pump 20 and the water outlet pipe 22 through the water outlet 12 above the fish-collecting tank 10 when the fish-water mixture is filled in the fish-collecting tank 10;
s3, starting a centrifugal pump to suck fish:
when the water level in the water outlet pipe 22 reaches the height of the liquid level switch 24, the liquid level switch 24 transmits a signal to a control cabinet, the control cabinet starts the centrifugal pump 20, closes the evacuation valve 322, disconnects the passage between the water outlet pipe 22 of the centrifugal pump 20 and the air inlet pipe 32 of the vacuum pump 30, opens the air extraction valve 321 for communicating the air inlet pipe 32 of the vacuum pump 30 with the outside, and opens the shutoff valve 223 between the water outlet pipe 22 and the external water body, so that the water in the fish gathering tank 10 is discharged from the water outlet pipe 22 of the centrifugal pump 20;
the water in the fish gathering tank 10 is discharged into the external water body through the water inlet pipe 21, the centrifugal pump 20 and the water outlet pipe 22 in sequence; as shown in fig. 3 (thin arrow); as the centrifugal pump 20 always works, the water in the fish collecting tank 10 is continuously discharged to the external water body, the fish water mixture always enters the fish collecting tank 10 along the fish sucking pipe 132 and the fish sucking port 13, and the speed reducing part 15 realizes the fish sucking operation; at this time, the vacuum pump 30 is in an operating state, but air sucked by the suction valve 321 enters the vacuum pump 30 through the air inlet pipe 32, is discharged into the atmosphere through the air outlet pipe 31 and the air outlet valve 311, and does not participate in the fish sucking operation as shown in fig. 3 (thick arrow).
In the process of sucking fish, when fish passes through the fish inlet and outlet 152 of the speed reducing component 15, the caliber of the fish inlet and outlet 152 is gradually increased, the speed of the fish water mixture is gradually reduced, and the fish can be prevented from being damaged due to collision with the inner wall of the fish collecting tank 10.
S4, fish discharging:
after the centrifugal pump 20 runs for a certain time, when the fish in the fish collecting tank 10 is more, the centrifugal pump 20 is closed, a pressure discharge valve 312 on a second pipeline 33 is opened, an air outlet pipe 31 of the vacuum pump 30 is communicated with an air vent pipe 111 of the fish collecting tank 10, an air outlet valve 311 on the air outlet pipe 31 of the vacuum pump 30 is closed, a fish inlet valve 131 on the fish suction pipe 13 is closed, air in the outside atmosphere is pumped by the vacuum pump 30 to enter the fish collecting tank 10 through the air exhaust valve 321, the air inlet pipe 32, the vacuum pump 30, the air outlet pipe 31, a second pipeline 33, the pressure discharge valve 312 and the air vent pipe 111 in sequence, the air flows to pressurize fish water in the fish collecting tank 10 as shown in fig. 4, and the fish water can be discharged into a fish receiving pond at a high position under the action of pressure; after all the fish water in the fish collecting tank 10 is discharged, the fish discharging valve 141 and the pressure discharging valve 312 are closed, and the exhaust valve 311 is opened; completing a primary fish sucking and discharging process;
s5, repeating the steps S2-S4 to realize uninterrupted fish suction and fish discharge to the high position, and closing the centrifugal pump 20, the vacuum pump 30 and all valves after the fish discharge is finished.
In the step S3 of sucking fish, in order to facilitate observation of the gathering condition of fish in the fish collecting tank 10, the fish collecting tank 10 may be made of transparent material, or 1-3 windows may be provided on the fish collecting tank 10.
In the process of discharging fish in step S4, whether all fish in the fish collecting tank 10 are discharged or not can be controlled by time, and when the fish discharging time reaches the set time, the fish discharging valve 14 is closed; a liquid level switch can also be arranged on the fish discharging pipe 14 for detection, when the water level reaches the liquid level switch, a signal is transmitted to the control cabinet, and the control cabinet closes the fish discharging valve 141.
In the above embodiment, the common centrifugal pump is used as power to suck the fish water mixture into the fish collecting tank, the fish is trapped in the fish collecting tank 10 by the fish blocking component, and the water is discharged out of the fish collecting tank 10 by the fish blocking component and the centrifugal pump in sequence, so that the separation of fish and water and the concentration of fish are realized. After the fishes in the fish gathering tank 10 are gathered to a certain degree, the fishes are discharged into a fish receiving pond, so that the fishes are caught efficiently and nondestructively.
The whole fish sucking system is simple in structure, low in cost and convenient to operate, the single fish sucking time can be adjusted according to the condition of the to-be-lifted fish, and the fish sucking system is flexible in operation, high in elasticity and high in controllability.
Finally, it should be noted that: in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (10)
1. An automatic fish sucking method is characterized in that: the method comprises the following steps:
s1, preparing:
immersing a fish suction pipe of a fish collecting tank into a fish water mixture, wherein the fish collecting tank is connected with a water inlet pipe of a centrifugal pump, a water outlet pipe of the centrifugal pump is communicated with a water inlet pipe of a vacuum pump, and an exhaust valve communicated with the outside atmosphere on a water outlet pipe of the vacuum pump is opened;
s2, pump filling:
starting a vacuum pump, enabling water or a fish water mixture to enter the fish collecting tank through a fish inlet pipe, and enabling water to sequentially enter the water inlet pipe, the centrifugal pump and the water outlet pipe through a water outlet above the fish collecting tank after the fish collecting tank is full;
s3, starting a centrifugal pump and sucking fish:
when the water level in the water outlet pipe reaches a certain height, the centrifugal pump is started, a passage between the water outlet pipe of the centrifugal pump and the air inlet pipe of the vacuum pump is disconnected, a shutoff valve between the water outlet pipe and an external water body is opened, an extraction valve communicated with the outside by the air inlet pipe of the vacuum pump is opened, and water in the fish collection tank is discharged into the external water body through the water inlet pipe, the centrifugal pump and the water outlet pipe in sequence;
s4, fish discharging:
after the centrifugal pump runs for a certain time, closing the centrifugal pump to enable the fish collecting tank to be communicated with the outside atmosphere, opening a fish discharging valve on a fish discharging pipe at the bottom of the fish collecting tank, closing the fish discharging valve after all fish water in the fish collecting tank is discharged, and blocking the communication between the fish collecting tank and the outside atmosphere;
s5, repeating the steps S2-S4 to realize uninterrupted fish sucking and discharging, and closing the centrifugal pump, the vacuum pump and all valves after the fish sucking and discharging are finished.
2. The automatic fish sucking method according to claim 1, wherein in step S4, after the centrifugal pump is operated for a certain time, the centrifugal pump is turned off, a fish discharging valve on the fish discharging pipe is opened, and the fish collecting tank is pressurized, so that the fish in the fish collecting tank is discharged into the fish receiving pond with a height higher than the fish discharging opening of the fish collecting tank under the action of pressure;
after the primary fish discharging operation is finished, stopping pressurizing the fish collecting tank, and closing the fish discharging valve; repeating the steps S2-S4 to realize uninterrupted fish sucking and fish discharging to the high place.
3. The automatic fish sucking method according to claim 2, wherein in step S4, the vacuum pump is used to pressurize the fish collecting tank, specifically, the centrifugal pump is closed, the fish discharging valve is opened, the air outlet pipe of the vacuum pump is communicated with the fish collecting tank, the air outlet valve on the air outlet pipe of the vacuum pump is closed, the fish inlet valve on the fish sucking pipe is closed, and the air in the external atmosphere is pumped by the vacuum pump to sequentially pass through the air extracting valve, the air inlet pipe, the vacuum pump and the air outlet pipe to enter the fish collecting tank, so as to pressurize the fish water in the fish collecting tank.
4. An automatic fish sucking method according to claim 3, wherein in step S3, the start of the centrifugal pump is controlled by a liquid level switch provided on the water outlet pipe.
5. The automatic fish sucking method as claimed in claim 4, wherein a regulating valve is further provided on a water outlet pipe of the centrifugal pump.
6. The automatic fish sucking method according to claim 1, wherein a speed reducing component capable of reducing the speed of the fish water mixture is arranged in the fish collecting tank, the speed reducing component comprises a fish inlet pipe and a fish inlet outlet positioned at the top of the fish inlet pipe, and the fish inlet outlet is of a horn-shaped structure with a narrow lower part and a wide upper part;
the bottom of the fish collecting tank is elliptical, dish-shaped or conical;
the bottom of the fish inlet pipe is connected with a fish suction port of the fish collecting tank, the fish suction port is connected with the fish suction pipe, and fish passes through the fish suction pipe, the fish suction port, the fish inlet pipe and the fish inlet outlet enter the fish collecting tank.
7. The automatic fish sucking method of claim 6, wherein a water outlet is provided above the fish collecting tank, and a fish blocking member is provided below the water outlet.
8. The automatic fish sucking method according to claim 7, wherein a vent pipe communicated with the outside atmosphere is further arranged above the fish collecting tank, a vent valve is arranged on the vent pipe, the vent valve controls the on-off of the fish collecting tank and the outside atmosphere, a pressure discharge valve is arranged on a connecting pipe of the vent pipe and an air outlet pipe of the vacuum pump, and when the pressure discharge valve is opened, the vacuum pump charges and pressurizes the fish collecting tank.
9. The automatic fish sucking method according to claim 8, wherein a fish sucking valve is provided on the fish sucking pipe, and a fish discharging valve is provided on the fish discharging pipe; the centrifugal pump is characterized in that a water outlet pipe of the centrifugal pump is provided with a shutoff valve, an air suction valve for controlling the air suction pipe to suck air from the outside is arranged on an air inlet pipe of the vacuum pump, and an air outlet pipe of the vacuum pump is provided with an air outlet valve for controlling the air outlet pipe to exhaust air to the outside.
10. The automatic fish sucking method according to claim 9, wherein the centrifugal pump, the vacuum pump, the shut-off valve, the ventilation valve, the pressure discharge valve, the suction valve, the exhaust valve, the fish discharge valve, the fish intake valve are in signal connection with a control cabinet and are controlled by linkage of the control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211488536.3A CN116076459A (en) | 2022-11-25 | 2022-11-25 | Automatic fish sucking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211488536.3A CN116076459A (en) | 2022-11-25 | 2022-11-25 | Automatic fish sucking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116076459A true CN116076459A (en) | 2023-05-09 |
Family
ID=86211002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211488536.3A Pending CN116076459A (en) | 2022-11-25 | 2022-11-25 | Automatic fish sucking method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116076459A (en) |
-
2022
- 2022-11-25 CN CN202211488536.3A patent/CN116076459A/en active Pending
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