System and method for removing sewage from surface of aquaculture water tank suitable for aquaculture ship

Abstract

The present invention discloses a system and method for removing sewage from the surface of an aquaculture water tank suitable for an aquaculture ship, aiming to solve the problems of not only low efficiency but also high working risk of conventional manual fishing of sewage; the system comprises: floats, a hose, a rapid hose joint, a control valve, a discharge pipe and a wave prevention valve. (+ Fig.)

Description

P1296 / NL SYSTEM AND METHOD FOR REMOVING SEWAGE FROM SURFACE OF AQUACULTURE WATER TANK SUITABLE FOR AQUACULTURE SHIP TECHNICAL FIELD The present invention relates to the technical field of aqua culture ship equipment, and in particular to a system and method for removing sewage from the surface of an aquaculture water tank suitable for an aquaculture ship. BACKGROUND ART The surface sewage of the aquiculture tank of the aquiculture ship mainly includes mucus foam, feed particles, etc. The mucus foam is mainly generated due to the stress reaction generated when the fry enters the tank, and the feed particles are the residue which is not ingested by the fish after being fed into the aqui culture water tank. If the water surface sewage is not discharged in time, it will not only produce toxic and harmful substances, damage the water quality, but also affect the contact between wa ter and air, resulting in insufficient oxygen supply for fish growth, greatly affecting the quality and economic benefits of fish aquiculture. For traditional fish aquaculture modes, such as landbased aquaculture and cage aquiculture, the water surface sewage can be discharged by manual fishing, which is convenient for operation. Because of the huge water volume and wide water surface, the conventional manual salvage method is not only inef ficient, but also at high risk. In order to solve this problem, a system for removing sewage from the surface of an aquaculture wa ter tank suitable for an aquaculture ship is developed. SUMMARY It is an object of the present invention to provide a system and method for removing sewage from the surface of an aquaculture water tank suitable for an aquaculture ship, which solves the problem of the conventional manual fishing of sewage that is not only inefficient but also operates at high risk. The above technical object of the present invention is achieved by the following technical solution: a system for removing sewage from the surface of an aquacul ture water tank suitable for an aquaculture ship, which comprises: floats, a hose, a rapid hose joint, a control valve, a discharge pipe and a wave prevention valve; floats, a plurality of suction floats being provided with a plurality of suction ports, the center of the bottom of the float being provided with a hose interface matching the hose, the hose interface being in communication with each suction port, and the float being provided in the aquaculture water tank for collecting the sewage in the aquaculture water tank; a hose, one end of the hose being connected to a float inter face, and the other end of the hose being connected to a rapid hose joint for conveying water surface sewage; a rapid hose joint arranged inside the aquaculture water tank body near the top of the side tank for quick mounting and removal of the hose; a control valve, the control valve being disposed outside the aquaculture water tank body and mounted opposite to the rapid hose joint; a discharge pipe, one end of the discharge pipe being con nected to the control valve, and the other end of the discharge pipe being connected to the wave prevention valve for discharging water surface sewage out of the hull; a wave prevention valve, the wave prevention valve being ar ranged on an inner side wall of the side tank away from the con trol valve, an input end of the wave prevention valve being con nected to the discharge pipe, and an output end of the wave pre vention valve being in communication with the outside of the hull for discharging water surface sewage out of the hull and prevent ing sea water on the outboard side from entering the side tank. The present invention is further configured such that: the floats are cylindrical, the floats are made from polyurethane foam, the diameter of the float is not less than 1 / 20 of the main dimension of the aquaculture water tank, and the thickness of the float is not less than 1 / 80 of the main dimension of the aquacul ture water tank. The present invention is further configured such that: the suction ports are evenly distributed along the central axis of the float, that the outer ends of the suction ports in communication with the water surface, and the height of the suction ports is 1 / 5 of the height of the float. The present invention is further configured such that: the hose is of plastic material, that the hose is internally provided with reinforcing ribs, that the inner diameter of the hose is of the same size as the hose joint, and that the length of the hose is greater than the main dimension of the aquaculture water tank. The present invention is further configured such that: the rapid hose joint is made of cast aluminium alloy, and the inner diameter of the rapid hose joint matches the hose. The present invention is further configured such that: the control valve is a central flange butterfly valve, the control valve is made from ductile iron, and the inner diameter of the control valve matches the rapid hose joint. The present invention is further configured such that: the discharge pipe is a retractable plastic corrugated pipe, and the inner diameter of the discharge pipe is matched with the control valve. The present invention is further configured such that: the wave prevention valve is made from cast tin bronze, and the inner diameter of the wave prevention valve matches the outer diameter of the discharge pipe. A method for removing sewage from the surface of an aquacul ture water tank suitable for an aquaculture ship comprises the steps of: 1) system mounting: the mounting of the system must be car ried out in a dry tank environment, before filling the aquaculture water tank with water, the wave prevention valve, the control valve and the rapid hose joint must be mounted completely, then the wave prevention valve and the control valve are connected via the discharge pipe, the rapid hose joint and the float are con nected via the hose, and then the float is lifted via a steel wire rope; 2) preparation before use: after the mounting of the system is completed, water is injected into the tank until the water sur face reaches the designed water level of the water tank, the float is placed on the water surface via a steel wire rope, and the floating state of the float is adjusted so that the suction port of the float is half above and half below the water surface; 3) system use: the control valve is opened, and since the wa ter level in the aquaculture water tank is higher than that on the outboard side, the dirt spontaneously enters the hose through the float under the action of the internal and external pressure dif ference, and is discharged on the outboard side through the dis charge pipe and the wave prevention valve; when the control valve is closed, the sewage discharge is stopped; 4) system maintenance: when the equipment needs to be main tained, the hose is disconnected from the rapid hose joint, and the float and the hose are hoisted through the pulley and the steel wire rope. In summary, the invention has the following technical ef fects: The present invention collects the sewage from the float, the combination of the float and the hose makes the sewage discharge more flexible, the rapid hose joint makes the maintenance more convenient, the control valve controls the sewage discharge pro cess effectively, the wave prevention valve prevents the outboard water from entering the side tank, and ensures the safe operation of the ship. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the structure of the present invention. FIG. 2 is a schematic view showing the structure of the float according to the present invention. FIG. 3 is a sectional view of the float of the present inven tion. Reference numerals: lfloat, 2hose, 3rapid hose joint, 4 control valve, 5discharge pipe, 6wave valve, 7suction port, 8 hose joint DETAILED DESCRIPTION OF THE EMBODIMENTS In order that the manner in which the present invention is realized, its novel features, objects, and advantages will be readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. As shown in FIGS. 1 to 3, the present invention provides a system for removing sewage from the surface of an aquaculture wa ter tank suitable for an aquaculture ship, comprising: floats 1, a hose 2, a rapid hose joint 3, a control valve 4, a discharge pipe 5 and a wave prevention valve 6; floats 1, a plurality of suction floats 1 being provided with a plurality of suction ports 7, the center of the bottom of the float 1 being provided with a hose 2 interface matching the hose 2, the hose interface 8 being in communication with each suction ports 7, and the float 1 being provided in the aquaculture water tank for collecting the sewage in the aquaculture water tank; a hose 2, one end of the hose 2 being connected to a float interface 8, and the other end of the hose 2 being connected to a rapid hose joint 3 for conveying water surface sewage; a rapid hose joint 3 arranged inside the aquaculture water tank body near the top of the side tank for quick mounting and re moval of the hose 2; a control valve 4, the control valve 4 being disposed outside the aquaculture water tank body and mounted opposite to the rapid hose joint 3; a discharge pipe 5, one end of the discharge pipe 5 being connected to the control valve 4, and the other end of the dis charge pipe 5 being connected to the wave prevention valve 6 for discharging water surface sewage out of the hull; a wave prevention valve 6, the wave prevention valve 6 being arranged on an inner side wall of the side tank away from the con trol valve 4, an input end of the wave prevention valve 6 being connected to the discharge pipe 5, and an output end of the wave prevention valve 6 being in communication with the outside of the hull for discharging water surface sewage out of the hull and pre venting sea water on the outboard side from entering the side tank. The floats 1 are cylindrical, the floats 1 are made from pol yurethane foam, the diameter of the float 1 is not less than 1 / 20 of the main dimension of the aquaculture water tank, and the thickness of the float 1 is not less than 1 / 80 of the main dimen sion of the aquaculture water tank. The suction ports 7 are uniformly distributed along the cen tral axis of the float 1, the outer ends of the suction ports 7 communicate with the water surface, the height of the suction ports 7 is 1 / 5 of the height of said float 1, in the present em bodiment, the number of suction ports is eight, the number of suc tion ports can be increased or decreased with more practical re guirements, and the number and position in the figures are merely for convenience of explanation and should not be construed as lim iting the present invention. The hose 2 is of a plastic material, a reinforcing rib is provided inside the hose 2, the inner diameter of the hose 2 is the same as the size of the hose joint 8, and the length of the hose 2 is greater than the main size of the aquaculture water tank. The rapid hose joint 3 is made from a cast aluminium alloy, and the inner diameter of the rapid hose joint 3 matches the hose 2. The control valve 4 is a central flangetype butterfly valve, the control valve 4 is made from ductile iron, and the inner diam eter of the control valve 4 matches the rapid hose joint 3. The discharge pipe 5 is a retractable plastic corrugated pipe, and the inner diameter of the discharge pipe 5 is matched with the control valve 4. The wave prevention valve 6 is made from cast tin bronze, the inner diameter of the wave prevention valve 6 matches the outer diameter of the discharge pipe 5, and in the present embodiment, the wave prevention valve 6 is a vertical closeable wave preven tion valve. A method for removing sewage from the surface of an aquacul ture water tank suitable for an aquaculture ship comprises the steps of: 1) system mounting: the mounting of the system must be car ried out in a dry tank environment, before filling the aquaculture water tank with water, the wave prevention valve 6, the control valve 4 and the rapid hose joint 3 must be mounted completely, then the wave prevention valve 6 and the control valve 4 are con nected via the discharge pipe 5, the rapid hose joint 3 and the float 1 are connected via the hose 2, and then the float 1 is lifted via a steel wire rope; 2) preparation before use: after the mounting of the system is completed, water is injected into the tank until the water sur face reaches the designed water level of the water tank, the float 1 is placed on the water surface via a steel wire rope, and the floating state of the float is adjusted so that the suction port 7 of the float is half above and half below the water surface; 3) system use: the control valve 4 is opened, and since the water level in the aquaculture water tank is higher than that on the outboard side, the dirt spontaneously enters the hose 2 through the float 1 under the action of the internal and external pressure difference, and is discharged on the outboard side through the discharge pipe 5 and the wave prevention valve 6; when the control valve 4 is closed, the sewage discharge is stopped; 4) system maintenance: when the equipment needs to be main tained, the hose 2 is disconnected from the rapid hose joint 3, and the float 1 and the hose 2 are hoisted through the pulley and the steel wire rope. In describing the present invention, it should be noted that the terms upper, lower, inner", outer, left, right", etc. designate orientations or positional relationships based on what is shown in the drawings, or which are customarily presented in connection with the use of the inventive product, or which are customarily understood by a person skilled in the art, only to fa cilitate the description of the invention and to simplify the de scription, and do not indicate or imply that the apparatus or ele ment referred to must have a particular orientation, be construct ed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms first, second, and the like are used solely for descriptive purposes and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless expressly stated or limited otherwise, the terms provided, connected, and the like are to be interpreted broadly, e.g., connected" may be fixed, detacha ble, or integrally connected; may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communi cation between two elements. The specific meaning of the above terms in the present invention can be understood by a person skilled in the art according to specific circumstances. As used herein, the terms comprises, comprising, or any other varia tion thereof, are intended to cover a nonexclusive inclusion, ex cept that it may include other elements not expressly listed. The foregoing has shown and described the basic principles, principal features, and advantages of the present invention. It should be understood by a person skilled in the art that the pre sent invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present in invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention tion as defined by the appended claims. It is intended that the scope of the invention be defined by the claims appended hereto and their equivalents. CONCLUSIONS l. System for removing wastewater from the surface of an aquaculture water tank suitable for aquaculture ship, characterized by the fact that it includes floats (1), a hose (2), a quick hose connection (3), a control valve (4), a shut-off valve feed line (5) and a wave prevention valve (6); floats (1), a multitude of suction floats (1) is equipped with a multitude of suction ports (7), with the center of the bottom the float (1) is equipped with a hose (2) interface fitting with the hose (2 ), where the hose interface (8) in connection each suction port (7), and the floats (1) are attached in the aquaculture water tank for collecting the wastewater in the aquaculture water tank; a hose (2), with one end of the hose (2) connected at the end of a driver interface (8), and the other end of the hose (2) is connected to a quick hose connection (3) for the transport of wastewater on the water surface; a quick hose connection (3) that is inserted into the body of the aquaculture water tank near the top of the side tank for quick assembly and removal of the hose (2); a control valve (4), where the control valve (4) is outside the body of the aquaculture water tank is placed and opposite the quick hose connection (3) is mounted; a drainpipe (5), where one end of the drainpipe thing (5) is connected to the control valve (4) and the other end of the drain pipe (5) is connected to the wave prevention valve (6) for the discharge of wastewater from surface water the hull; and a wave prevention valve (6), where the wave prevention valve (6) is mounted on an inner side wall of the side tank, away from the control valve (4), with an inlet end of the wave prevention valve (6) is connected to the drain pipe (5), and an outlet end of the wave prevention valve (6) is connected to the outside of the hull for discharging wastewater to the water surface from the hull and to prevent seawater from reaching the outboard side penetrates the side tank. 2. System for removing wastewater from the surface of an aquaculture water tank suitable for an aquaculture ship according to claim 1, characterized by the fact that the driver (1) is cylindrical, the floats (1) are made of polyurethane foam, the diameter of the float (1) is not less than 1 / 20 of the main dimensions of the aquaculture water tank and the thickness of the float (1) is not less than 1 / 80 of the main dimensions of the aquaculture water tank. 3. System for removing wastewater from the surface of an aquaculture water tank suitable for an aquaculture ship according to conclusion 1, characterized by the fact that the suction openings (7) are evenly distributed along the central axis of the driver (1), that the outer ends of the suction ports (7) in connection level with the water surface, and the height of the suction ports (7) 1 / 5 is of the height of the float (1). 4. System for removing wastewater from the surface of an aquaculture water tank suitable for a aquaculture vessel according to claim 1, characterized in that the hose (2) is made of plastic, that the hose (2) is internally provided of reinforcing ribs, that the inner diameter of the hose (2) has the same size as the hose connection (8), and that the length of the hose (2) is larger than the main dimension of the aquaculture water tank. 5. System for removing wastewater from the surface of an aquaculture water tank suitable for an aquaculture ship according to claim 1, characterized by the fact that the fast hose connection (3) is made of cast aluminum alloy, and the inner diameter of the quick hose connection (3) matches the hose (2). 6. System for removing wastewater from the surface of an aquaculture water tank suitable for an aquaculture ship according to conclusion 1, characterized in that the control valve (4) a central flange butterfly valve is, where the control valve (4) is made of ductile cast iron, and the inner diameter of the control valve (4) corresponds to the quick hose connection (3). 7. System for removing wastewater from the surface of an aquaculture water tank suitable for an aquaculture ship according to conclusion 1, characterized by the fact that the drainpipe (5) a is a telescopic plastic corrugated tube, of which the The inner diameter is adapted to the control valve (4). 8. System for removing wastewater from the surface of an aquaculture water tank suitable for an aquaculture ship according to conclusion 1, characterized by the fact that the wave valve (6) is made of cast tin bronze and the inner diameter of the wave valve (6) corresponds to the outer diameter of the drain pipe (5). 9. Procedure for removing wastewater from the surface of an aquaculture water tank suitable for a aquaculture vessel, characterized by the following steps includes: 1) system assembly: the assembly of the system must be carried out in a dry tank environment, before the aquaculture water tank is filled with water, the wave prevention valve (6), the control valve (4) and the quick hose coupling (3 ) must once fully assembled, the wave prevention valve (6) and the control valve (4) connected via the drain pipe (5), the quick connector (3) and the float (1) are connected via the hose ( 2), after which the float (1) is lifted via a steel wire; 2) preparation for use: after the assembly of the system is completed, water is injected into the tank until it water surface reaches the designed water level of the water tank, the float (1) is attached to the water surface by a steel wire placed, and the floating state of the float becomes thus adjusted so that the suction opening (7) of the float is half above and is located half below the water surface; 3) system use: the control valve (4) is opened and since the water level in the aquaculture water tank is higher than that at the outboard side, dirt enters the hose spontaneously (2) via the driver (1) under the influence of the internal and external pressure difference, and is discharged on the outside via the drain pipe (5) and the wave prevention valve (6); when the If the control valve (4) is closed, the wastewater discharge is stopped; 4) system maintenance: when the equipment needs to be to maintain, the hose (2) is disconnected from the quick hose coupling (3) and the floats (1) and the hose (2) are connected by the pulley and the steel wire hoisted. FIG.1

Claims

1. A system for removing waste water from the surface of an aquaculture water tank suitable for an aquaculture vessel, characterised in that it comprises floats (1), a hose (2), a quick hose connection (3), a control valve (4), a discharge line (5) and a surge preventer valve (6); floats (1), a plurality of suction floats (1) provided with a plurality of suction ports (7), the centre of the bottom of the float (1) being provided with a hose (2) interface mating with the hose (2), the hose interface (8) being connected to each suction port (7), and the floats (1) being disposed in the aquaculture water tank for collecting the waste water in the aquaculture water tank; a hose (2), an end of the hose (2) being connected to a float interface (8),and the other end of the hose (2) is connected to a quick hose connector (3) for conveying waste water on the water surface; a quick hose connector (3) provided in the body of the aquaculture water tank near the top of the side tank for quick installation and removal of the hose (2); a control valve (4), the control valve (4) being disposed outside the body of the aquaculture water tank and mounted opposite the quick hose connector (3); a discharge pipe (5), one end of the discharge pipe (5) being connected to the control valve (4) and the other end of the discharge pipe (5) being connected to the wave prevention valve (6) for discharging waste water from the surface water out of the hull; and a wave prevention valve (6), the wave prevention valve (6) being provided on an inner side wall of the side tank away from the control valve (4),wherein an inlet end of the wave prevention valve (6) is connected to the discharge pipe (5), and an outlet end of the wave prevention valve (6) is in communication with the outside of the hull for discharging waste water at the water surface from the hull and preventing outboard sea water from entering the wing tank.

2. A system for removing waste water from the surface of an aquaculture water tank suitable for an aquaculture vessel according to claim 1, characterized in that the float (1) is cylindrical, the floats (1) are made of polyurethane foam, the diameter of the float (1) is not less than 1 / 20 of the main dimension of the aquaculture water tank, and the thickness of the float (1) is not less than 1 / 80 of the main dimension of the aquaculture water tank.

3. A system for removing waste water from the surface of an aquaculture water tank suitable for an aquaculture vessel according to claim 1, characterized in thatthat the suction ports (7) are evenly distributed along the central axis of the float (1), that the outer ends of the suction ports (7) are in contact with the water surface, and that the height of the suction ports (7) is 1 / 5 of the height of the float (1).

4. A system for removing waste water from the surface of an aquaculture water tank suitable for an aquaculture vessel according to claim 1, characterized in that the hose (2) is made of plastic, that the hose (2) is internally provided with reinforcing ribs, that the internal diameter of the hose (2) is the same size as the hose connection (8), and that the length of the hose (2) is greater than the main dimension of the aquaculture water tank.

5. A system for removing waste water from the surface of an aquaculture water tank suitable for an aquaculture vessel according to claim 1, characterized in that the quick hose connection (3) is made of cast aluminum alloy,and the inner diameter of the quick hose connection (3) matches the hose (2).

6. A system for removing waste water from the surface of an aquaculture water tank suitable for an aquaculture vessel according to claim 1, characterized in that the control valve (4) is a central flange butterfly valve, the control valve (4) being made of nodular cast iron, and the inner diameter of the control valve (4) matches the quick hose connection (3).

7. A system for removing waste water from the surface of an aquaculture water tank suitable for an aquaculture vessel according to claim 1, characterized in that the discharge pipe (5) is a telescopic corrugated plastic pipe, the inner diameter of which is matched to the control valve (4).

8. A system for removing waste water from the surface of an aquaculture water tank suitable for an aquaculture vessel according to claim 1, characterized in thatthat the surge preventer (6) is made of cast tin bronze and the inner diameter of the surge preventer (6) matches the outer diameter of the discharge pipe (5).

9. A method for removing waste water from the surface of an aquaculture water tank suitable for an aquaculture vessel, characterized in that it comprises the following steps: 1) System assembly: The system assembly should be carried out in a dry tank environment, before the aquaculture water tank is filled with water, the surge preventer (6), the control valve (4) and the quick hose coupling (3) should be completely assembled, then the surge preventer (6) and the control valve (4) are connected through the discharge pipe (5), the quick coupling (3) and the float (1) are connected through the hose (2), and then the float (1) is lifted up by a steel wire; 2) Preparation for use: After the system assembly is completed, water is injected into the tank until the water surface reaches the designed water level of the water tank, the float (1) is placed on the water surface through a steel wire, and the floating state of the float is adjusted so that the suction port (7) of the float is half above and half below the water surface; 3) System use: The control valve (4) is opened, and since the water level in the aquaculture water tank is higher than that on the outboard side, the dirt spontaneously enters the hose (2) through the float (1) under the action of the internal and external 5 pressure difference, and is discharged to the outside through the discharge pipe (5) and the surge prevention valve (6); when the control valve (4) is closed, the wastewater discharge is stopped; 4) System maintenance: When the equipment needs to be maintained, the hose (2) is disconnected from the quick 10 hose coupling (3), and the floats (1) and the hose (2) are lifted by the pulley and the wire rope.