CN113417855B

CN113417855B - Marine low-vibration low-noise vertical self-priming centrifugal pump

Info

Publication number: CN113417855B
Application number: CN202110885097.9A
Authority: CN
Inventors: 何国忠
Original assignee: Wuhu Changjiang Pump Industry Co ltd
Current assignee: Wuhu Changjiang Pump Industry Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-11-01
Anticipated expiration: 2041-08-03
Also published as: CN113417855A

Abstract

The invention discloses a vertical self-priming centrifugal pump with low vibration and low noise for a ship, which comprises a pump shell, wherein the top of the pump shell is provided with a motor, the bottom of the pump shell is provided with a pump water bin, the bottom of the pump water bin is provided with a water inlet bin, one side of the water inlet bin is provided with water inlet filtering components which are communicated with each other, and the output end of the motor is respectively provided with a motor shaft, a coupler and a pump shaft; according to the invention, through the mutual matching of the water inlet bin, the impeller, the coupler, the motor, the vapor-liquid separator, the flow guide pipe, the pump water bin, the circulating pipe, the motor shaft and the pump shaft, the device separates vapor and liquid through the vapor-liquid separator, and changes the internal circulation into the external circulation, so that the backflow trend of the device is changed, the collision of backflow liquid and liquid is prevented, the problems of higher noise and stronger vibration during the operation of the transmission pump are solved, and the operation is more stable compared with the traditional pump.

Description

Marine low-vibration low-noise vertical self-priming centrifugal pump

Technical Field

The invention relates to the technical field of centrifugal pumps, in particular to a marine vertical self-priming centrifugal pump with low vibration and low noise.

Background

The marine pump is characterized in that the pump is required to be driven by a motor or other prime movers, cavitation cannot occur due to fluctuation of an absorbed liquid level when the ship sways and inclines, and the pump is generally in a vertical structure for reducing the occupied area of the pump and facilitating maintenance.

The traditional pump adopts a large water tank to perform water circulation on the device, when water flow circulates, the water tank collides with liquid inlet and impacts an impeller, so that the noise is high when the device is used, and the running load of the device is increased along with strong vibration; when the existing device is used for pumping river water and seawater, most of impurities in water cannot be directly filtered, and the impurities in the water enter the pump and impact the impeller, so that the damage speed of impeller materials is accelerated, the power consumption of a pump body is increased, and the noise generated by the device is increased; when the ship body navigates, the ship body can swing and incline a little more or less, when the ship body swings, the device can swing, the load of a rotating shaft and a bearing of the device can be increased, when the swing amplitude is large, the device can be damaged, the conventional device is usually and directly fixed on the ship body, the pump body cannot be well buffered, and the damage probability of the device is increased.

Disclosure of Invention

The present invention is directed to a marine vertical self-priming centrifugal pump with low vibration and low noise, which solves the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: the novel pump comprises a pump shell, wherein a motor is arranged at the top of the pump shell, a pump water bin is arranged at the bottom of the pump shell, a water inlet bin is arranged at the bottom of the pump water bin, a water inlet filtering component which is communicated with each other is arranged on one side of the water inlet bin, a motor shaft, a coupler and a pump shaft are respectively arranged at the output end of the motor, the bottom of the pump shaft extends into the pump water bin and is provided with an impeller, a vapor-liquid separator is arranged at the middle position of one side of the pump shell, a flow guide pipe which is communicated with each other is arranged on one side of the pump water bin, the top of the flow guide pipe is communicated with the vapor-liquid separator, a connecting plate is arranged at the bottom of the water inlet bin, buffering components are sleeved on two sides of the bottom of the connecting plate, and a circulating pipe which is communicated with the pump water bin is arranged at the bottom of one end of the vapor-liquid separator.

Preferably, the filter assembly that intakes includes the inlet tube, crosses filter bin, thumb wheel, installation storehouse, spacing dish, L type pole, movable rod, brush board, bull stick, movable groove, slide bar, driving lever, collecting vat and crosses filter plate, the inlet tube is located one side of the storehouse of intaking, one side of inlet tube is provided with crosses filter bin, one side at inlet tube top is provided with installation storehouse, the inside pot head in installation storehouse is equipped with the bull stick, the pot head in the bull stick outside is equipped with the thumb wheel, the both sides of installation storehouse one end are provided with the spacing dish jointly, the inboard that the spacing dish was passed to the one end of bull stick is provided with the driving lever, the top and the bottom of spacing dish all overlap and are equipped with the slide bar, and two sets of the top and the bottom that the slide bar is close to each other are provided with the movable groove of mutually supporting with the driving lever jointly, the top cover that crosses filter bin is equipped with the movable rod, and a set of top the one end of slide bar is provided with L type pole with movable rod interconnect, it is provided with crosses filter plate to cross one side at the inside top of filter bin, the bottom of filter bin is provided with filter plate, the collecting vat is provided with the brush plate that communicates each other, the bottom of collecting vat is provided with the brush board.

Preferably, the buffer assembly comprises a base, an articulated rod, a spring A, an inner sleeve A, an outer sleeve A, an inner sleeve B and a spring B, the inner sleeve A is located on two sides of the bottom of the connecting plate and is two sets of the bottom of the inner sleeve A is jointly provided with the base and is two sets of the spring A, the two sides of the base top close to the inner sleeve A and the two sides of the connecting plate bottom close to the inner sleeve A are hinged with the articulated rod, one side of the articulated rod is hinged with the outer sleeve A together, the inner side of the outer sleeve A is sleeved with the inner sleeve B which is mutually hinged with the other two sets of the articulated rods, and the outer side of the outer sleeve A and the outer side of the inner sleeve B are sleeved with the spring B together.

Preferably, the middle position department at the inside top of inlet tube is provided with the check valve, the top of the inside one side of inlet tube is provided with the through-hole of mutually supporting with the thumb wheel.

Preferably, a guide plate is arranged on one side of the brush plate, and the guide plate is triangular.

Preferably, a bearing is arranged at the bottom of the inner side of the pump shell, and the inner side of the bearing is connected with the pump shaft.

Preferably, the top of the two groups of inner sleeves A are provided with limiting blocks, and the top and the bottom of the two groups of springs A are respectively connected with the connecting plate and the base.

Preferably, a limiting groove matched with the shifting rod is arranged in the middle of one end of the movable groove, and the limiting groove is circular.

Preferably, the motor shaft is interconnected with the pump shaft by a coupling.

Preferably, one end of the collecting tank is provided with a bin gate, and one side of the filtering bin is provided with a connecting pipe.

Compared with the prior art, the invention provides a marine vertical self-priming centrifugal pump with low vibration and low noise, which has the following beneficial effects:

1. according to the invention, through the mutual matching of the water inlet bin, the impeller, the coupler, the motor, the vapor-liquid separator, the flow guide pipe, the pump water bin, the circulating pipe, the motor shaft and the pump shaft, the device separates vapor and liquid through the vapor-liquid separator, changes the internal circulation into the external circulation, changes the backflow trend of the device, prevents backflow liquid from colliding with liquid inlet, solves the problems of higher noise and stronger vibration during the operation of the transmission pump, and is more stable in operation compared with the traditional pump.

2. According to the invention, through the mutual matching of the water inlet pipe, the filtering bin, the shifting wheel, the mounting bin, the limiting disc, the L-shaped rod, the movable rod, the brush plate, the rotating rod, the movable groove, the sliding rod, the shifting rod, the collecting tank and the filtering screen plate, before a water source enters the device, impurities in water can be filtered firstly, so that the impeller is prevented from being impacted by the impurities, the damage speed of the impeller is slowed down, the noise generated by the device is reduced, the brush plate can be driven to continuously slide up and down through the impact force of water flow, the filtering screen plate is brushed, the filtered impurities are stored in the collecting tank to be collected, the filtering screen plate is prevented from being blocked, and the filtering effect of the impurities is improved.

3. According to the invention, through the mutual matching of the base, the hinge rod, the spring A, the inner sleeve A, the outer sleeve A, the inner sleeve B and the spring B, when the ship body inclines, the transverse and longitudinal shaking of the pump body can be effectively reduced, the load on the rotating shaft and the bearing during shaking is reduced, the device is not easy to damage, and the service life is prolonged.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 5 is an enlarged cross-sectional front view of the cushion assembly of the present invention;

FIG. 6 is an enlarged, cross-sectional top view of the influent filter assembly of the present invention;

fig. 7 is a back cross-sectional view of the spacing disk of the present invention.

In the figure: 1. a base; 2. a hinged lever; 3. a water inlet bin; 4. a spring A; 5. an impeller; 6. a coupling; 7. a motor; 8. a pump housing; 9. a vapor-liquid separator; 10. a flow guide pipe; 11. a water pumping bin; 12. an inner sleeve A; 13. a connecting plate; 14. an outer sleeve A; 15. an inner sleeve B; 16. a spring B; 17. a water inlet pipe; 18. a filtering bin; 19. a thumb wheel; 20. installing a bin; 21. a limiting disc; 22. an L-shaped rod; 23. a movable rod; 24. brushing a plate; 25. a rotating rod; 26. a movable groove; 27. a slide bar; 28. a deflector rod; 29. collecting tank; 30. a circulation pipe; 31. a motor shaft; 32. a pump shaft; 33. a filter screen plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a marine vertical self priming centrifugal pump of low-vibration low noise, including pump case 8, the top of pump case 8 is provided with motor 7, the bottom of pump case 8 is provided with pump sump 11, the bottom of pump sump 11 is provided with into storehouse 3, one side of the storehouse 3 of intaking is provided with the filter assembly that intakes of intercommunication each other, the output of motor 7 is provided with motor shaft 31 respectively, shaft coupling 6 and pump shaft 32, the bottom of pump shaft 32 extends to the inside of pump sump 11 and is provided with impeller 5, it is provided with vapour and liquid separator 9 to drive the intermediate position department of pump case 8 one side, one side of pump sump 11 is provided with honeycomb duct 10 that communicates each other, the top and vapour and liquid separator 9 of honeycomb duct 10 communicate each other, separate vapour and liquid, the bottom of the storehouse 3 of intaking is provided with connecting plate 13, the both sides cover of connecting plate 13 bottom is equipped with buffer assembly, the bottom of vapour and liquid separator 9 one end is provided with circulating pipe 30 with pump sump 11 intercommunication each other, water flows to carry out the water conservancy diversion in vapour and liquid separator 9, circulate.

As a preferable aspect of the present embodiment: the water inlet filtering component comprises a water inlet pipe 17, a filtering bin 18, a shifting wheel 19, an installation bin 20, a limiting disc 21, an L-shaped rod 22, a movable rod 23, a brushing plate 24, a rotating rod 25, a movable groove 26, a sliding rod 27, a shifting rod 28, a collecting tank 29 and a filtering screen plate 33, wherein the water inlet pipe 17 is positioned on one side of the water inlet bin 3, the filtering bin 18 is arranged on one side of the water inlet pipe 17, the installation bin 20 is arranged on one side of the top of the water inlet pipe 17, a rotating rod 25 is sleeved on one end inside the installation bin 20, the shifting wheel 19 is sleeved on one end outside the rotating rod 25, the limiting disc 21 is arranged on two sides of one end of the installation bin 20 together, one end of the rotating rod 25 penetrates through the inner side of the limiting disc 21 and is provided with the collecting tank 28, the sliding rod 27 is sleeved on the top and the bottom of the limiting disc 21, the movable grooves 26 mutually matched with the shifting rod 28 are arranged on the top and the bottom of two groups of the sliding rods 27 together, the top and the bottom of the two groups of the sliding rods 27 are provided with the movable groove 26 mutually matched with the shifting rod 23, the filtering bin, the filtering screen plate, the bottom of the filtering bin 18 is provided with the filtering screen plate 24, and the filtering screen plate 24.

As a preferable embodiment of the present embodiment: buffer unit includes base 1, articulated rod 2, spring A4, interior sleeve pipe A12, outer tube A14, interior sleeve pipe B15 and spring B16, interior sleeve pipe A12 is located the both sides of connecting plate 13 bottom, the bottom of two sets of interior sleeve pipe A12 is provided with base 1 jointly, the outside cover of two sets of interior sleeve pipe A12 is equipped with spring A4, both sides that the base 1 top is close to interior sleeve pipe A12 and the both sides that connecting plate 13 bottom is close to interior sleeve pipe A12 all articulate there is articulated hinge rod 2, one side of two sets of articulated rod 2 of one side articulates jointly has outer tube A14, the inboard cover of outer tube A14 is equipped with the interior sleeve pipe B15 of other two sets of articulated rod 2 mutual articulations, the common cover in outside of outer tube A14 and interior sleeve pipe B15 is equipped with spring B16, alleviate and rock, the influence that the device caused is rocked in the reduction.

As a preferable embodiment of the present embodiment: the intermediate position department at the inside top of inlet tube 17 is provided with the check valve, prevents that rivers from flowing back, and the top of the inside one side of inlet tube 17 is provided with the through-hole of mutually supporting with thumb wheel 19, makes thumb wheel 19 rotate.

As a preferable embodiment of the present embodiment: one side of the brush plate 24 is provided with a guide plate, and the shape of the guide plate is triangular, so that the water can be guided to flow, and the impact of water flow on the brush plate 24 is reduced.

As a preferable embodiment of the present embodiment: the inboard bottom of pump case 8 is provided with the bearing, and the inboard and the pump shaft 32 interconnect of bearing, carries on spacingly to pump shaft 32, promotes pump shaft 32 pivoted stability.

As a preferable embodiment of the present embodiment: the top of two sets of interior sleeve pipes A12 is provided with the stopper, and the top and the bottom of two sets of springs A4 are respectively with connecting plate 13 and base 1 interconnect, can cooperate base 1 to extrude spring A4 when connecting plate 13 pushes down.

As a preferable aspect of the present embodiment: a limiting groove matched with the shifting rod 28 is arranged in the middle of one end of the movable groove 26, and the limiting groove is circular and limits the shifting rod 28.

As a preferable aspect of the present embodiment: the motor shaft 31 is connected with the pump shaft 32 through the coupling 6, and the motor shaft and the pump shaft are connected with each other for transmission to drive the impeller 5 to rotate.

As a preferable embodiment of the present embodiment: one end of the collecting tank 29 is provided with a bin gate, so that impurities in the collecting tank 29 can be cleaned conveniently, one side of the filtering bin 18 is provided with a connecting pipe, and a water inlet source is connected.

In embodiment 1, as shown in fig. 4 to 6, when the device pumps water, water flow enters the filter bin 18 and can filter impurities in the water flow through the filter screen plate 33, so as to reduce the load of the impurities on the water pump, and when the filtered water flow flows into the water inlet pipe 17, the water flow impacts the thumb wheel 19, the continuous impact force of the water flow can drive the thumb wheel 19 to rotate, so as to rotate the rotating rod 25, when the rotating rod 25 rotates, the poking rod 28 can be driven to rotate along the inner side of the limiting groove, so that the poking rod 28 can push the movable groove 26 under the sliding limit of the limiting disc 21 on the sliding rod 27, so that the sliding rod 27 slides up and down repeatedly, and the sliding rod 27 can drive the movable rod 23 to slide up and down through the L-shaped rod 22, when the movable rod 23 slides up and down, the brush plate 24 can be driven to move up and down to brush the surface of the filter screen plate 33, so that the filtered impurities fall into the collecting groove 29 for collection, and the flow guide of the inlet water can reduce the impact of the water flow on the brush plate 24.

Embodiment 2, as shown in fig. 5, the device is rocked, can cause connecting plate 13 to shake, rock that the device received can be alleviated to the extrusion that inner sleeve A12 caused when rocking through connecting plate 13, connecting plate 13 accessible and hinge bar 2's connection characteristic simultaneously, promote outer tube A14 and interior sleeve B15 and be close to each other, extrude spring B16, resilience force through spring B16 can form the conflict, alleviate rocking of device once more, when the hull takes place the slope, can effectual reduction rock the influence that causes the device, the load of rocking force to the bearing has been reduced.

The working principle is as follows: when the device is used for the first time, water is added into the vapor-liquid separator 9, after liquid enters the vapor-liquid separator 9, the liquid can be guided into the pump water bin 11 through the circulating pipe 30, after the required water amount is injected, the motor 7 is started, the motor shaft 31 can be driven to rotate through the motor 7, then the motor shaft 31 can drive the pump shaft 32 through the coupler 6 to drive the impeller 5 to rotate, when the impeller 5 rotates, the liquid in the pump water bin 11 can be conveyed outwards through the guide pipe 10 by carrying air with the liquid entrained by centrifugal force when the impeller 5 rotates, the liquid can be discharged when being conveyed through the vapor-liquid separator 9, a certain vacuum degree is formed in the pump, the liquid entering the vapor-liquid separator 9 can be circulated into the pump water bin 11 through the circulating pipe 30 again, the water from a water source can be forced to be sucked into the pump through the water inlet pipe 17 under the action of air pressure to be circulated, continuity can be realized, when the device is stopped to be used, a certain volume of liquid is stored in the vapor-liquid separator 9, water does not need to be added again when the device is used again, and the liquid is circulated outside the pump body, so that vibration and noise generated when the liquid is circulated in the device;

when the device pumps water, water flow enters the filter bin 18 and can filter impurities in the water flow through the filter screen plate 33, so that the load of the impurities on the water pump is reduced, when the filtered water flow flows into the water inlet pipe 17, the water flow can impact the shifting wheel 19, the continuous impact force of the water flow can drive the shifting wheel 19 to rotate, the rotating rod 25 rotates, when the rotating rod 25 rotates, the shifting rod 28 can be driven to rotate along the inner side of the limiting groove, the shifting rod 28 can push the movable groove 26 under the sliding limiting limit of the sliding rod 27 by the limiting disc 21 so that the sliding rod 27 can slide up and down repeatedly, the sliding rod 27 can drive the movable rod 23 to slide up and down through the L-shaped rod 22, when the movable rod 23 slides up and down, the brush plate 24 can be driven to move up and down to brush the surface of the filter screen plate 33, so that the filtered impurities fall into the filter screen plate 29 for collection, the water inflow can be guided by the guide plate, and the impact of the water flow on the brush plate 24 is reduced;

the device receives when rocking, can cause connecting plate 13 to take place the shake, rock rocking that the device received can be alleviated to the extrusion that inner tube A12 caused when rocking through connecting plate 13, connecting plate 13 accessible and hinge bar 2's connection characteristic simultaneously, promote outer tube A14 and interior sleeve pipe B15 and be close to each other, extrude spring B16, resilience force through spring B16 can form the conflict, alleviate rocking of device once more, when the hull takes place to incline, can effectually reduce and rock the influence that causes the device, the load of rocking force to the bearing has been reduced.

Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a marine low vibration low noise vertical self-priming centrifugal pump, includes pump case (8), its characterized in that: a motor (7) is arranged at the top of the pump shell (8), a pump water bin (11) is arranged at the bottom of the pump shell (8), a water inlet bin (3) is arranged at the bottom of the pump water bin (11), a water inlet filtering component which is mutually communicated is arranged on one side of the water inlet bin (3), a motor shaft (31), a coupler (6) and a pump shaft (32) are respectively arranged at the output end of the motor (7), the bottom of the pump shaft (32) extends into the pump water bin (11) and is provided with an impeller (5), a vapor-liquid separator (9) is arranged at the middle position of one side of the pump shell (8), a guide pipe (10) which is mutually communicated is arranged on one side of the pump water bin (11), the top of the guide pipe (10) is mutually communicated with the vapor-liquid separator (9), a connecting plate (13) is arranged at the bottom of the water inlet bin (3), buffering components are sleeved on two sides of the bottom of the connecting plate (13), and a circulating pipe (30) which is mutually communicated with the pump water bin (11) is arranged at the bottom of one end of the vapor-liquid separator (9);

the utility model discloses a water filter assembly, including inlet tube (17), filtration storehouse (18), thumb wheel (19), installation storehouse (20), spacing dish (21), L type pole (22), movable rod (23), brush board (24), bull stick (25), activity groove (26), slide bar (27), driving lever (28), collecting vat (29) and filtration otter board (33), inlet tube (17) are located one side of inlet bin (3), one side of inlet tube (17) is provided with filtration storehouse (18), one side at inlet tube (17) top is provided with installation storehouse (20), the inside pot head of installation storehouse (20) is equipped with bull stick (25), the pot head in the bull stick (25) outside is equipped with thumb wheel (19), the both sides of installation storehouse (20) one end are provided with spacing dish (21) jointly, the one end of bull stick (25) is passed the inboard of spacing dish (21) and is provided with driving lever (28), the top and the bottom of spacing dish (21) all overlap and are equipped with slide bar (27), two sets of slide bar (27) top and bottom that slide bar (27) are close to each other and bottom are provided with a set of activity groove (28) and movable rod (23) mutually, the top of filter rod (23) is equipped with the mutual cooperation of filter rod (23), the top of filter rod (23) and filter rod (23), the top of activity groove (23) is equipped with the joint pole (23), the pole (23) is equipped with the pole (23), the top of filter storehouse (23), the pole (23) is equipped with the pole (23), the top of installation storehouse (25) is equipped with the pole (23) 22 A filter screen plate (33) is arranged on one side of the top inside the filter bin (18), collecting grooves (29) which are communicated with each other are arranged at the bottom of the filter bin (18), a brush plate (24) is arranged at the bottom of the movable rod (23), a guide plate is arranged on one side of the brush plate (24), and the guide plate is triangular;

buffer unit includes base (1), articulated rod (2), spring A (4), interior sleeve pipe A (12), outer tube A (14), interior sleeve pipe B (15) and spring B (16), interior sleeve pipe A (12) is located the both sides of connecting plate (13) bottom, and is two sets of the bottom of interior sleeve pipe A (12) is provided with base (1) jointly, and is two sets of the outside cover of interior sleeve pipe A (12) is equipped with spring A (4), the both sides that the base (1) top is close to interior sleeve pipe A (12) and connecting plate (13) bottom are close to interior sleeve pipe A (12) all articulate articulated rod (2), and one side is two sets of one side of articulated rod (2) articulates jointly has outer tube A (14), the inboard cover of outer tube A (14) is equipped with in other two sets of articulated rod (2) mutual articulated interior sleeve pipe B (15), the outside common cover of outer tube A (14) and interior sleeve pipe B (15) is equipped with spring B (16).

2. The marine low-vibration low-noise vertical self-priming centrifugal pump according to claim 1, characterized in that: the middle position department at the inside top of inlet tube (17) is provided with the check valve, the top of the inside one side of inlet tube (17) is provided with the through-hole of mutually supporting with thumb wheel (19).

3. The marine low-vibration low-noise vertical self-priming centrifugal pump according to claim 1, characterized in that: the bottom of the inner side of the pump shell (8) is provided with a bearing, and the inner side of the bearing is connected with the pump shaft (32).

4. The marine low-vibration low-noise vertical self-priming centrifugal pump according to claim 1, characterized in that: the top of the two groups of inner sleeves A (12) is provided with a limiting block, and the top and the bottom of the two groups of springs A (4) are respectively connected with the connecting plate (13) and the base (1).

5. The marine vertical self-priming centrifugal pump with low vibration and low noise as claimed in claim 2, characterized in that: a limiting groove matched with the shifting rod (28) is arranged in the middle of one end of the movable groove (26), and the limiting groove is circular.

6. The marine low-vibration low-noise vertical self-priming centrifugal pump according to claim 1, characterized in that: the motor shaft (31) is connected with the pump shaft (32) through a coupling (6).

7. The marine vertical self-priming centrifugal pump with low vibration and low noise as claimed in claim 1, characterized in that: one end of the collecting tank (29) is provided with a bin gate, and one side of the filtering bin (18) is provided with a connecting pipe.