System and method for catching culture cabin of culture ship
Technical Field
The invention relates to a system and a method for catching a culture cabin of a culture ship, and belongs to the technical field of catching of culture ships.
Background
The deep and distant sea water area has the obvious advantages of rich fishery resources, high water source quality, proper water temperature, remote land-source pollution and diseases and the like, has excellent conditions for developing large-scale marine culture and logistics processing supply, and is a new space for developing modern aquaculture industry and marine economy.
The cultivation ship is one of core equipment for developing deep and open sea cultivation engineering, and has high economic value and social value. For a hundred thousand ton-grade cultivation ship, the depth of the cultivation water body of each cultivation cabin can reach 15m, the cultured fish can reach more than 100 t, and how to efficiently and automatically catch the cultured fish becomes a technical problem faced by the cultivation ship.
Disclosure of Invention
The invention aims to provide a culture cabin catching system of a culture ship and a working method thereof, which can realize high-efficiency automatic catching of the culture cabin of the culture ship and have low labor intensity.
The invention adopts the following technical scheme:
a system for capturing a cultivation cabin of a cultivation ship, comprising: a culture cabin 1; a fish outlet pipeline 15 communicated with the bottom of the culture cabin; the lower part of the lifting cylinder is communicated with the fish sucking pipeline; the tray lifting device is positioned in the lifting cylinder and can move along the axial direction of the lifting cylinder; the water ring vacuum pump is communicated with the upper part of the lifting cylinder; and the fish receiving pond is communicated with the side wall of the lifting cylinder, and the communication part of the fish receiving pond is lower than the communication part of the water ring vacuum pump and the lifting cylinder.
Preferably, the pair of lifting cylinders are provided, the tray lifting devices are respectively arranged in the pair of lifting cylinders, and the pair of lifting cylinders work alternately.
Preferably, the system further comprises a seawater pipeline 14 communicated with the bottom of the culture cabin and a seawater pump 2 connected with the seawater pipeline, wherein the seawater pump 2 is used for discharging set seawater out of the chord of the culture ship before the water ring vacuum pump works.
Further, a seawater valve 12 and a fish blocking net 11 are arranged on the seawater pipeline 14.
Preferably, a fish outlet valve 13 is arranged on the fish outlet pipeline 15.
Preferably, the lifting cylinder is connected with a water ring vacuum pump through a vacuum valve 31 and a vacuum pipeline 32, and a vent valve 31 is arranged on the vacuum pipeline 32.
Furthermore, a fish outlet valve is arranged on a pipeline communicated with the lifting cylinder and the fish receiving pond, and a fish inlet valve is arranged on a pipeline communicated with the lifting cylinder and the fish outlet pipeline 15.
Furthermore, the tray lifting device comprises a motor, and the motor is fixed at the top of the lifting cylinder and is connected with the fish tray through a lifting rope.
A method for catching a culture cabin of a culture ship comprises the steps of configuring a pair of lifting cylinders, and sucking a fish-water mixture of the culture cabin into the lifting cylinders through a water ring vacuum pump; lifting the fish to a set height by a tray lifting device in the lifting cylinder; receiving fish in the lifting cylinder through a fish receiving pond communicated with the side wall of the lifting cylinder; the pair of lifting cylinders work alternately.
A method for catching culture cabins of a culture ship comprises the following steps: s1, opening a seawater valve, starting a seawater pump, discharging water in the culture cabin to the outside of the chord of the culture worker ship through the seawater pump, closing the seawater valve of the culture cabin after the culture water body in the culture cabin is reduced to a certain density of fish swarms, and stopping the seawater pump; s2, opening the vent valve 31, and starting the water ring vacuum pump; s3, opening a vacuum valve of the lifting cylinder 1, closing a vent valve, and vacuumizing the first lifting cylinder by a water ring vacuum pump; s4, opening the fish inlet valve and the fish outlet valve of the culture cabin after the air pressure in the first lifting cylinder is reduced to a certain value, and pumping the fish-water mixture in the culture cabin into the first lifting cylinder; s5, after the water level in the first lifting cylinder rises to a certain value, closing the fish inlet valve and the vacuum valve of the first lifting cylinder, opening the vacuum valve of the second lifting cylinder, and vacuumizing the second lifting cylinder by the water ring vacuum pump; s6, opening a first lifting cylinder fish outlet valve, starting a first lifting cylinder motor, rolling up a first lifting cylinder lifting rope by a first lifting cylinder motor rotating shaft, pulling a first lifting cylinder fish tray to move upwards by the first lifting cylinder lifting rope, upwards supporting the fish-water mixture entering the first lifting cylinder by the first lifting cylinder fish tray, and enabling the fish-water mixture to enter a fish discharging pipeline and finally enter a fish receiving pond when the fish-water mixture reaches a fish outlet of the first lifting cylinder; s7, after all the fish-water mixture in the first lifting cylinder enters the fish discharging pipeline, the first lifting cylinder motor rotates reversely, the first lifting cylinder fish tray descends until the first lifting cylinder fish tray descends to the bottom of the first lifting cylinder, the first lifting cylinder motor stops, and the first lifting cylinder fish discharging valve is closed; s8, opening a fish inlet valve and a fish outlet valve of the culture cabin of the second lifting cylinder after the air pressure in the second lifting cylinder is reduced to a certain value, and pumping the fish-water mixture in the culture cabin into the second lifting cylinder; s9, after the water level in the second lifting cylinder rises to a set value, closing the fish inlet valve and the vacuum valve of the second lifting cylinder, opening the vacuum valve of the first lifting cylinder, and vacuumizing the first lifting cylinder by the water ring vacuum pump; s10, opening a second lifting cylinder fish outlet valve, starting a second lifting cylinder motor, rolling up a lifting rope of the second lifting cylinder by a rotating shaft of the second lifting cylinder motor, pulling a second lifting cylinder fish tray to move upwards by the lifting rope of the second lifting cylinder, upwards supporting the fish-water mixture entering the second lifting cylinder by the second lifting cylinder fish tray, and enabling the fish-water mixture to enter a fish discharging pipeline and finally enter a fish receiving pond when the fish-water mixture reaches a fish outlet of the second lifting cylinder; s11, after all the fish-water mixture in the second lifting cylinder enters the fish discharging pipeline, the second lifting cylinder motor rotates reversely, the second lifting cylinder fish tray descends until the second lifting cylinder fish tray descends to the bottom of the second lifting cylinder, the second lifting cylinder motor stops, and the fish outlet valve of the second lifting cylinder is closed; s12, repeating the steps S4-S11 until all the fishes in the culture cabin are caught; and S13, stopping the water ring vacuum pump, and closing all valves.
Preferably, the first lift cylinder motor is mounted inside the first lift cylinder, and the second lift cylinder motor is mounted inside the second lift cylinder.
The invention has the beneficial effects that: the efficient and automatic catching of the culture cabin of the culture ship can be realized, the large suction lift catching can be realized, and the labor intensity is low.
Drawings
FIG. 1 is a structural diagram of a culture cabin catching system of a culture ship of the invention.
In the figure, 1, a culture cabin, 2, a sea water pump, 3, a water ring vacuum pump, 4, a first lifting cylinder, 5, a second lifting cylinder, 6, a fish receiving pond, 11, a culture cabin fish blocking net, 12, a culture cabin sea water valve, 13, a culture cabin fish outlet valve, 14, a culture cabin sea water pipeline, 15, a culture cabin fish outlet pipeline, 31, a vent valve, 32, a vacuum pipeline, 41, a first lifting cylinder vacuum valve, 42, a first lifting cylinder motor, 43, a first lifting cylinder fish outlet valve, 44, a first lifting cylinder lifting rope, 45, a first lifting cylinder fish inlet valve, 46, a first lifting cylinder fish supporting disc, 51, a second lifting cylinder vacuum valve, 52, a second lifting cylinder motor, 53, a second lifting cylinder fish outlet valve, 54, a second lifting cylinder lifting rope, 55, a second lifting cylinder fish inlet valve, 56, a second lifting cylinder fish supporting disc, 61 and a fish discharging pipeline.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the cultivation cabin catching system of the cultivation ship comprises: a culture cabin; a fish outlet pipeline 15 communicated with the bottom of the culture cabin; the lower part of the lifting cylinder is communicated with the fish sucking pipeline; the tray lifting device is positioned in the lifting cylinder and can move along the axial direction of the lifting cylinder; the water ring vacuum pump is communicated with the upper part of the lifting cylinder; and the fish receiving pond is communicated with the side wall of the lifting cylinder, and the communication part of the fish receiving pond is lower than the communication part of the water ring vacuum pump and the lifting cylinder.
In this embodiment, referring to fig. 1, the lifting drums are provided with a pair, each having the tray lifting device therein, and a pair of the lifting drums are alternately operated.
In this embodiment, referring to fig. 1, it further comprises a seawater pipeline 14 communicated with the bottom of the cultivation cabin, and a seawater pump 2 connected with the seawater pipeline, wherein the seawater pump 2 is used for discharging the set seawater out of the chord of the cultivation worker before the water ring vacuum pump works.
In this embodiment, referring to fig. 1, the seawater pipe 14 is provided with a seawater valve 12 and a fish blocking net 11.
In this embodiment, referring to fig. 1, the fish outlet pipe 15 is provided with a fish outlet valve 13.
In this embodiment, referring to fig. 1, the lifting cylinder is connected to a water ring vacuum pump through a vacuum valve 31 and a vacuum pipe 32, and the vacuum pipe 32 is provided with a vent valve 31.
In this embodiment, referring to fig. 1, a fish outlet valve is arranged on the pipeline of the fish receiving pond communicated with the lifting cylinder, and a fish inlet valve is arranged on the pipeline of the fish outlet pipeline 15 communicated with the lifting cylinder.
In this embodiment, referring to fig. 1, the tray lifting device comprises a motor connected to the fish tray by a lifting cord.
When the fish is caught, firstly, the culture cabin is pre-pumped by using a large-flow centrifugal pump (seawater pump 2), the culture water body in the culture cabin is reduced until the fish school reaches a certain density, then, the fish-water mixture in the culture cabin is pumped into the lifting cylinder by adopting a vacuum fish sucking principle, then, the fish-water mixture sucked into the lifting cylinder is lifted to a high place by adopting a lifting mechanism, and the fish-water mixture is discharged to a fish conveying pipeline at the high place, so that the catching operation of the culture cabin of the aquaculture ship is completed. In order to improve the catching efficiency, two lifting cylinders are used for alternately sucking/discharging fish.
The specific catching process is as follows:
1. and opening a seawater valve of the culture cabin, starting a seawater pump, discharging water in the culture cabin to the outside of the chord of the culture worker ship through the seawater pump, closing the seawater valve of the culture cabin after the culture water body in the culture cabin is reduced until fish flocks reach a certain density, and stopping the seawater pump.
2. And opening the vent valve and starting the water ring vacuum pump.
3. And opening a first lifting cylinder vacuum valve, closing a vent valve, and vacuumizing the first lifting cylinder by the water ring vacuum pump 3.
4. And after the air pressure in the first lifting cylinder is reduced to a certain value, opening the fish inlet valve of the first lifting cylinder and the fish outlet valve of the culture cabin, and pumping the fish-water mixture in the culture cabin into the first lifting cylinder.
5. And after the water level in the first lifting cylinder rises to a certain value, closing the fish inlet valve and the vacuum valve of the first lifting cylinder, opening the vacuum valve of the second lifting cylinder, and vacuumizing the second lifting cylinder by the water ring vacuum pump.
6. Opening first lifting cylinder and going out the fish valve, start first lifting cylinder motor, first lifting cylinder motor pivot is rolled up first lifting cylinder lifting rope, and first lifting cylinder lifting rope is drawing first lifting cylinder support fish dish upward movement, and first lifting cylinder support fish dish upwards holds up the fish water mixture that gets into in the first lifting cylinder together, and when the fish water mixture reachd the fish outlet department of first lifting cylinder, the fish water mixture gets into row fish pipeline, finally gets into and receives the fish pond.
7. And after the fish-water mixture in the first lifting cylinder completely enters the fish discharging pipeline, the first lifting cylinder motor rotates reversely, the first lifting cylinder fish tray descends until the first lifting cylinder fish tray descends to the bottom of the first lifting cylinder, the first lifting cylinder motor stops, and the first lifting cylinder fish discharging valve is closed.
8. After the air pressure in the second lifting cylinder is reduced to a certain value, the fish inlet valve of the second lifting cylinder and the fish outlet valve of the culture cabin are opened, and the fish-water mixture in the culture cabin is pumped into the second lifting cylinder.
9. And after the water level in the second lifting cylinder rises to a certain value, closing the fish inlet valve of the second lifting cylinder and the vacuum valve of the second lifting cylinder, opening the vacuum valve of the first lifting cylinder, and vacuumizing the first lifting cylinder by the water ring vacuum pump.
10. Opening a second lifting cylinder fish outlet valve, starting a second lifting cylinder motor, rolling a second lifting cylinder lifting rope by a second lifting cylinder motor rotating shaft, pulling a second lifting cylinder fish tray to move upwards by the second lifting cylinder lifting rope, upwards supporting the fish water mixture entering the second lifting cylinder by the second lifting cylinder fish tray, and finally entering a fish receiving pond when the fish water mixture reaches a fish outlet of the second lifting cylinder.
11. And after the fish-water mixture in the second lifting cylinder completely enters the fish discharging pipeline, the second lifting cylinder motor rotates reversely, the second lifting cylinder fish tray descends until the second lifting cylinder fish tray descends to the bottom of the second lifting cylinder, the second lifting cylinder motor stops, and the second lifting cylinder fish discharging valve is closed.
12. And repeating the process of the steps 4 to 11 until all the fishes in the culture cabin are caught.
13. And stopping the water ring vacuum pump and closing all valves.
In order to prevent the seawater pump from sucking the fish in the culture cabin by mistake when pumping water from the culture cabin, a fish blocking net is added at the front end of the seawater pipeline of the culture cabin.
In order to avoid setting up a complicated sealing structure, the first lifting cylinder motor should be installed inside the first lifting cylinder, and the second lifting cylinder motor should be installed inside the second lifting cylinder.
A45-degree elbow or a 90-degree elbow with the bending radius at least 5 times of the inner diameter of the fish outlet pipeline is selected at the position where the direction of the fish outlet pipeline of the culture cabin changes.
For improving work efficiency, two lifting cylinders are arranged in the embodiment to alternately suck and discharge fish, so that the fish is continuously sucked from the culture cabin. In practice, it is also possible to provide only one lifting cylinder, or to provide a plurality of lifting cylinders operating alternately.
The sea water valve, the vent valve, the first lifting cylinder vacuum valve and the second lifting cylinder vacuum valve of the cultivation cabin adopt pneumatic butterfly valves, and the fish outlet valve of the cultivation cabin, the fish inlet valve of the first lifting cylinder, the fish outlet valve of the first lifting cylinder, the fish inlet valve of the second lifting cylinder and the fish outlet valve of the second lifting cylinder adopt pneumatic knife gate valves.
The sea water pump adopts a large-flow centrifugal pump.
One end of the lifting rope is fixed on the motor rotating shaft, and the other end of the lifting rope is fixed on the fish tray.
While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.