Pump body mounting structure of bend inflow type fish pump
Technical Field
The utility model relates to a fishing equipment, especially a fish pump.
Background
At present, the marine fishery is mainly changed from the fishing industry to the aquaculture industry, so the cage culture technology for marine culture is rapidly developed; the cage culture technology is developed from the United states at first, the cage culture technology in China starts late, and the intellectualization and mechanization of the cage culture are not enough; in the early 2019, 10 departments such as the rural agricultural department print a plurality of opinions about accelerating the green development of aquaculture industry, and the cage culture industry is advocated to be developed vigorously and developed rapidly. When the fish goods are harvested or the fishes are cultured in boxes by the cage culture, the manual catching speed is slow, the damage to the fishes is large, the labor intensity is high, and the development of an efficient fish taking mode is urgently required; in the fishery mechanization process, the fish suction pump is advanced equipment for taking and unloading fishery products, can reduce the labor intensity, improve the mechanization and automation level and greatly reduce the manpower required for taking and sorting fish; at present, the technology of the fish pump at home and abroad mainly comprises a centrifugal fish pump, a pneumatic fish pump, a vacuum fish pump and a jet-flow fish pump; the fish suction pump without damage to fish mainly comprises a vacuum type fish suction pump and a jet type fish suction pump, the vacuum type fish suction pump has the problem of intermittence, water flow outside a suction pipe of the jet type fish suction pump is sprayed into the pipe, the generated flow rate is slow, the fish suction efficiency is low, the two technologies still have the problem of low efficiency, the same applicant of the application simultaneously submits and applies a curve inflow type fish suction pump utilizing inertia force and boundary layer effect on the same day, and the application discloses a pump body mounting structure applied to the curve inflow type fish suction pump.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a curve inflow type fish pump body mounting structure.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a bend inflow formula fish pump's pump body mounting structure, includes suction line, pipeline and connection suction line with pipeline and inner wall are the tubulose pipeline that turns to of circle, pipeline corresponds suction line's one side syntropy embedding is installed and is drawn water the branch pipe, the play water end of the branch pipe that draws water with pipeline communicates with each other, the inboard that turns to the pipeline is equipped with the erection opening, the erection opening embedding is installed and is connected the boss, connect and install the suction pump on the boss, be equipped with on the boss and connect the cavity, the intake end of the branch pipe that draws water with the opening of connecting the cavity links to each other, it corresponds to connect the cavity one side of pipeline is equipped with the water inlet, install the division board on the water inlet, the inlet opening has on the division board.
The bottom of the connecting boss is provided with an extending surface which is matched with the inner wall of the suction pipeline, and the extending surface extends into the steering pipeline.
The distance from the extension surface to the inside of the steering pipeline is D, wherein the inner diameters of the suction pipeline, the conveying pipeline and the steering pipeline are D.
And a plurality of rollers are rotatably arranged on the isolating plate.
The isolation plate is parallel to the axis of the conveying pipeline.
The utility model has the advantages that: the utility model installs the water pumping branch pipe in the conveying pipeline in an embedded manner, installs the water pumping pump on the water pumping branch pipe, inputs work to the pump body through the transmission shaft by the motor, and sucks the suction force generated by the pipeline in the running process of the pump body, and the suction force can suck the fish near the inlet of the pipeline and the water into the pipeline; the water flow and the fish do accelerated motion when moving towards the pipeline, when being sucked to the position of the turning pipeline, the water and the fish already have certain speed, the speed and inertia enable the fish to be close to the wall surface close to the outer side of the turning pipeline, in addition, the lower part of the water pumping branch pipe is provided with a connecting boss, the connecting boss is embedded and installed in the turning pipeline, the bottom of the connecting boss is provided with an extending surface, the water flow can form a boundary layer effect with the space at the water inlet in a boss cavity and generate a backflow area, the backflow area is utilized to slow down the transverse suction speed, the suction force to the fish is reduced, the situation that the suction force of a pump is too strong can be avoided, the fish is adsorbed on a separation plate, and meanwhile, the extending surface prolongs the length of the suction pipeline, so that enough speed inertia is provided for the fish and the water to move to the wall surface close to the outer side; when the fish is sucked to the turning pipeline, the water and the fish have certain speed, the fish is close to the wall surface of the turning pipeline close to the outer side under the action of centrifugal force and far away from and across the suction port of the inner pump, and finally the fish is carried out of the conveying pipeline by water flow; because the impeller is arranged in the pipeline, water is not sucked from other pipelines, the pipeline generates larger suction force when the impeller rotates, and the suction force to fish and water is also larger, thereby improving the fish sucking efficiency.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is an assembly schematic of a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a first embodiment of the present invention;
fig. 3 is an exploded schematic view of a first embodiment of the present invention;
FIG. 4 is an assembly view of a second embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a second embodiment of the present invention;
fig. 6 is an exploded view of a second embodiment of the present invention;
FIG. 7 is a schematic view of the structure of the connection boss;
FIG. 8 is a schematic cross-sectional view of a first embodiment of a roller;
FIG. 9 is a schematic cross-sectional view of a second embodiment of a roller;
FIG. 10 is a schematic cross-sectional view of a separator plate applied to the roller of FIG. 9;
FIG. 11 is a schematic view of the direction of water flow within the pump body;
FIG. 12 is a schematic diagram of the boundary layer velocity gradient of the water flow within the pump body.
Detailed Description
Referring to fig. 1 to 12, a pump body mounting structure of a curved inflow type fish pump is applied to a curved inflow type fish pump using inertia force and boundary layer effect, and includes a suction pipe 1, a delivery pipe 2, and a turning pipe 3 connecting the suction pipe 1 and the delivery pipe 2 and having a circular pipe-shaped inner wall, wherein the suction pipe 1, the delivery pipe 2, and the turning pipe 3 may be integrally formed or may be joined in sections, in this embodiment, an included angle between the suction pipe 1 and the delivery pipe 2 is 45 ° to 135 °, preferably 90 ° to 135 °, a side of the delivery pipe 2 corresponding to the suction pipe 1 is embedded with a water pumping branch pipe 4 in the same direction, a water outlet end of the water pumping branch pipe 4 is communicated with the delivery pipe 2, an installation opening 6 is provided at an inner side of the turning pipe 3, and a connection boss 7 is embedded in the installation opening 6, a water suction pump is arranged on the connecting boss 7, a connecting concave cavity 8 is arranged on the connecting boss 7, the water inlet end of the water pumping branch pipe 4 is connected with the opening of the connecting concave cavity 8, one side of the connecting concave cavity 8 corresponding to the conveying pipeline 2 is provided with a water inlet 9, the water inlet 9 is provided with a separation plate 5, the separation plate 5 is provided with a water inlet hole, the bottom of the connecting boss 7 is provided with an extension surface 10 which is matched with the inner wall of the suction pipeline 1, the extension surface 10 extends into the diversion duct 3, the distance of the extension surface 10 extending into the diversion duct 3 is 0-D, preferably 1/4-1/2D, the inner diameters of the suction pipeline 1, the conveying pipeline 2 and the steering pipeline 3 are all D, and the distance from the extension surface 10 to the inside of the steering pipeline 3 is the embedding installation distance of the connecting boss 7; the water pumping branch pipe is embedded and installed in the conveying pipeline, the water pumping pump is installed on the water pumping branch pipe, the motor inputs work to the pump body through the transmission shaft, and the suction force generated by the suction pipeline can suck fish near the inlet of the suction pipeline and water into the pipeline together in the operation process of the pump body; the water flow and the fish do accelerated motion when moving towards the pipeline, when the water flow and the fish are sucked to the position of the steering pipeline, the water flow and the fish have certain speed, the fish is close to the wall surface of the steering pipeline close to the outer side under the action of centrifugal force and far away from and cross a suction inlet of the inner side pump, and finally the fish is carried out of the conveying pipeline by the water flow pumped out by the pump body; because the impeller is arranged in the pipeline, water is not sucked from other pipelines, the pipeline generates larger suction force when the impeller rotates, and the suction force to fish and water is larger, thereby improving the fish sucking efficiency; in addition, set up a connection boss in the lower part of branch pipe draws water, connect the boss embedding and install in turning to the pipeline, the bottom of connecting the boss is equipped with the extension face, rivers can form the boundary layer effect and produce the backward flow district with the space of water inlet department in the boss cavity, utilize the backward flow district to slow down horizontal suction velocity, reduce the suction to the fish, can avoid the suction of pump too strong, adsorb the fish on the division board, the length of pipeline is inhaled in the extension face can be prolonged simultaneously, thereby provide sufficient speed inertia and give fish and water, move the wall that leans on the outside.
The water pump has the following two implementation modes:
the first embodiment is that the water pump is an axial flow pump, the axial flow pump includes a first impeller 11 axially installed in the connection cavity 8, a first driving motor 12 is installed outside the connection boss 7, the first impeller 11 is driven to rotate by a rotating shaft of the first driving motor 12, in this embodiment, the rotating shaft of the first driving motor 12 adopts a bevel gear to drive the first impeller 11 to rotate, the axial distance between the first impeller 11 and the axis 1/4D-D of the delivery pipe 2 is, the installation height of the impeller on a vertical plane is D-5D from the upper surface of the steering pipe 3 to the center of the impeller, wherein the inner diameters of the suction pipe, the delivery pipe and the steering pipe are D, the water outlet end of the water pumping branch pipe 4 is provided with a guide inclined plane 13, the upper half part of the water pumping branch pipe 4 is transited to the delivery pipe 2 at a certain angle, the resistance between the water flow and the pipeline is reduced, the energy loss of the water flow is reduced, in addition, the whole water pumping branch pipe 4 can be in an upright shape, a water outlet contraction shape or an expansion shape, and the flow speed can be increased under the same flow rate by the water outlet contraction shape.
The second embodiment is that the water suction pump is a centrifugal pump, a water inlet of the centrifugal pump is connected with an opening of the connecting cavity 8, a water outlet of the centrifugal pump is connected with the water suction branch pipe 4, a second impeller 14 is installed in the centrifugal pump, a second driving motor 15 is installed outside the connecting boss 7, the second driving motor 15 drives the second impeller 14 to rotate, in this embodiment, the axis of the second impeller 14 is far from the axis 1/4D-D of the conveying pipeline 2, and the distance from the upper surface of the steering pipeline 3 to the center of the second impeller 14 on a vertical plane is D-5D, wherein the inner diameters of the suction pipeline 1, the conveying pipeline 2 and the steering pipeline 3 are D, and a water outlet of a pump body of the centrifugal pump can be circular, elliptical, semicircular and the like; in addition, the two pump bodies are connected by using a sealing ring and a bolt.
The isolation plate 5 is made of rigid materials with a net structure, one side surface close to the inner wall of the steering pipeline 3 is smooth, protective materials can be sprayed to enable the surface to be smooth, damage caused by friction when fish bodies pass through the surface of the isolation plate 5 is prevented, a plurality of rollers 16 can be rotatably installed on the isolation plate 5, the rollers are arranged on the original base of the roller type structure, bearings 17 are installed on the inner walls of the rollers, the rollers can freely rotate, when the fish is adsorbed on the isolation plate, the fish can move upwards under an upward force due to the upward flow velocity in the pipeline, and can roll to convey the fish to an outlet; in addition, the roller can also adopt an electric driving mode to actively roll to convey the fish adsorbed on the partition board, one mode is that magnets 18 with positive and negative poles are arranged between the roller 16 and a bearing 17, a conduit is arranged on the partition board, a bidirectional wire 19 is arranged in the guide pipe, the roller 16 can be driven to rotate after the wire passes through, the other mode is that a roller shaft is arranged on the partition board, the roller is fixedly arranged on the roller shaft, one end of the roller shaft is connected with a driving motor, and the roller is driven to rotate through the rotation of the motor; the division plate 5 is parallel to the axis of the conveying pipeline 2, the division plate is welded at the water inlet of the connecting boss and clings to the pipe wall of the water pumping branch pipe 4, and fish can be prevented from being sucked into the pump body.
The above embodiments do not limit the scope of the present invention, and those skilled in the art can make equivalent modifications and variations without departing from the overall concept of the present invention.