CN214660896U

CN214660896U - Vertical centrifugal pump suitable for aviation kerosene transportation

Info

Publication number: CN214660896U
Application number: CN202022989548.7U
Authority: CN
Inventors: 王一飞; 李邦海
Original assignee: YIWU CITY NO 2 PETROCHEMICAL P
Current assignee: YIWU CITY NO 2 PETROCHEMICAL P
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-11-09
Anticipated expiration: 2030-12-12

Abstract

The utility model discloses a be suitable for vertical centrifugal pump of boat coal transportation, including pump case and motor, the inside pump chamber that is equipped with of pump case, pump chamber one end is equipped with the water inlet, the motor bottom is equipped with antiseep mechanism, antiseep mechanism bottom is through the bolt two pump cases of connecting. The utility model discloses in, the pump case is equipped with the water injection hole being close to stock solution chamber top, open sealing bolt and annotate the boat coal to the pump chamber when carrying out the first time injection boat coal, the water injection hole can lock through sealing bolt in the pump case is external, back starter motor, the stock solution chamber under the impeller can store certain boat coal after work, and be equipped with the inside groove between water inlet and pump chamber, the inside groove top is equipped with the overhead gage, the inside groove is close to the pump chamber and is equipped with down the baffle, then when the pump chamber, the pressure of inside groove and water inlet is equal, can prevent the emergence of refluence phenomenon in the pump, can store corresponding boat coal in the pump chamber, when using for the second time, can form the self-resorption of centrifugal pump.

Description

Vertical centrifugal pump suitable for aviation kerosene transportation

Technical Field

The utility model relates to a vertical centrifugal pump technical field especially relates to a vertical centrifugal pump that is suitable for aviation kerosene transportation.

Background

The vertical centrifugal pump works by utilizing the centrifugal motion of water generated by the rotation of an impeller, a pump shell and a water suction pipe are filled with water before a water pump is started, then a motor is started, a pump shaft drives the impeller and the water to rotate at a high speed, the water generates the centrifugal motion and is thrown to the outer edge of the impeller, so that low pressure is formed in the center of the impeller, and liquid in a low-level groove is continuously sucked up and discharged through a flow channel of a volute pump body.

The conventional vertical centrifugal pump needs to be filled with a certain amount of aviation kerosene before working at each time, which is very troublesome, and when the conventional vertical centrifugal pump is used for transporting the aviation kerosene, the phenomenon of aviation kerosene leakage can occur in the centrifugal pump because the aviation kerosene has high permeability, so that the vertical centrifugal pump suitable for aviation kerosene transportation is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the vertical centrifugal pump suitable for aviation kerosene transportation is provided for solving the problems that aviation kerosene needs to be filled and the vertical centrifugal pump is not suitable for aviation kerosene transportation before the vertical centrifugal pump works repeatedly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a vertical centrifugal pump suitable for boat coal transportation, includes pump case and motor, its characterized in that, the inside pump chamber that is equipped with of pump case, pump chamber one end is equipped with the water inlet, the pump chamber other end is equipped with the delivery port, the motor bottom is equipped with antiseep mechanism, antiseep mechanism connects the pump case bottom through bolt two, motor output shaft runs through antiseep mechanism at pump intracavity fixed mounting impeller, the motor bottom is close to the pump chamber and is equipped with the sealed axle of rotation connection, the pump chamber is being close to the impeller and is equipped with annular stock solution chamber, the pump case is being close to stock solution chamber top and is being equipped with the water filling hole, the water filling hole is locked through sealed bolt in the pump case external world, the pump chamber is being close to the water inlet and is equipped with the inside groove, the inside groove top is equipped with the overhead gage, the inside groove is close to the pump chamber and is equipped with down the baffle.

As a further description of the above technical solution:

the anti-seepage mechanism is characterized in that an upper shell is arranged at the top of the anti-seepage mechanism and connected with the motor through a third bolt, a sealing shell connected through a first bolt is arranged at the bottom of the upper shell, and the bottom of the sealing shell is connected with a pump shell through a second bolt.

As a further description of the above technical solution:

the motor is characterized in that a water baffle is arranged inside the upper shell and is rotationally connected with an output shaft of the motor, a mechanical seal is arranged in the sealing shell and is rotationally connected with the output shaft of the motor.

As a further description of the above technical solution:

the water inlet and the water outlet are provided with flanges.

As a further description of the above technical solution:

and exhaust valves are arranged at the water inlet and the water outlet close to the top of the flange.

As a further description of the above technical solution:

the pump shell, the sealing shell and the upper shell are all made of 7-series aviation alloy aluminum materials.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, the pump case is equipped with the water injection hole being close to stock solution chamber top, open sealing bolt and annotate the boat coal to the pump chamber when carrying out the first time injection boat coal, the water injection hole can lock through sealing bolt in the pump case is external, back starter motor, the stock solution chamber under the impeller can store certain boat coal after work, and be equipped with the inside groove between water inlet and pump chamber, the inside groove top is equipped with the overhead gage, the inside groove is close to the pump chamber and is equipped with down the baffle, then when the pump chamber, the pressure of inside groove and water inlet is equal, can prevent the emergence of refluence phenomenon in the pump, can store corresponding boat coal in the pump chamber, when using for the second time, can form the self-resorption of centrifugal pump.

2. The utility model discloses in, be equipped with epitheca and sealed shell between motor and pump case, form multistage seal structure, use 7 to be aviation alloy aluminium materials moreover, prevent the aviation coal seepage when can making the motor operation.

Drawings

Fig. 1 shows a schematic structural view of a front cross-sectional view of a centrifugal pump provided according to an embodiment of the present invention;

fig. 2 is a schematic view of a partially enlarged cross-sectional structure a provided in accordance with an embodiment of the present invention;

fig. 3 is a schematic view of a partial enlarged cross-sectional structure of B provided according to an embodiment of the present invention;

fig. 4 shows a schematic partial enlarged cross-sectional structure diagram of C provided according to an embodiment of the present invention.

Illustration of the drawings:

1. a motor; 2. a seal bolt; 3. mechanical sealing; 4. a seal shaft; 5. an exhaust valve; 6. a flange; 7. a third bolt; 8. a water outlet; 9. a water inlet; 10. a water baffle; 11. an impeller; 12. a liquid storage cavity; 13. an inner tank; 14. a pump housing; 15. sealing the shell; 16. an upper shell; 17. a first bolt; 18. a pump chamber; 19. a second bolt; 20. a lower baffle plate; 21. an upper baffle plate; 22. and (7) water injection holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a vertical centrifugal pump suitable for aviation kerosene transportation comprises a pump shell 14 and a motor 1, wherein a pump cavity 18 is arranged inside the pump shell 14, one end of the pump cavity 18 is provided with a water inlet 9, the other end of the pump cavity 18 is provided with a water outlet 8, the bottom of the motor 1 is provided with an anti-leakage mechanism, the bottom of the anti-leakage mechanism is connected with the pump shell 14 through a second bolt 19, an impeller 11 is fixedly arranged in the pump cavity 18 through the anti-leakage mechanism, the bottom of the motor 1 is provided with a rotatably connected sealing shaft 4 close to the pump cavity 18, the pump cavity 18 is provided with an annular liquid storage cavity 12 close to the impeller 11, the pump shell 14 is provided with a water injection hole 22 close to the top of the liquid storage cavity 12, the water injection hole 22 is locked outside the pump shell 14 through a sealing bolt 2, the pump cavity 18 is provided with an inner groove 13 close to the water inlet 9, the top of the inner groove 13 is provided with an upper baffle 21, the inner groove 13 is provided with a lower baffle 20 close to the pump cavity 18, the upper baffle 21, the lower baffle 20 and the pump shell 14 form an inner groove 13, the backflow prevention mechanism can be formed by the pressure on the two sides of the aviation kerosene.

Specifically, as shown in fig. 1, the top of the anti-leakage mechanism is provided with an upper shell 16, the upper shell 16 is connected with the motor 1 through a third bolt 7, the bottom of the upper shell 16 is provided with a sealing shell 15 connected through a first bolt 17, and the bottom of the sealing shell 15 is connected with the pump shell 14 through a second bolt 19, so that the motor 1 can stably operate.

Specifically, as shown in fig. 1, a water baffle 10 is arranged inside the upper shell 16, the water baffle 10 is rotatably connected with an output shaft of the motor 1, a mechanical seal 3 is arranged in the sealing shell 15, the mechanical seal 3 is rotatably connected with the output shaft of the motor 1, and the penetration of aviation kerosene can be prevented without interfering with the output of the motor 1.

Specifically, as shown in fig. 1, flanges 6 are arranged at the water inlet 9 and the water outlet 8, exhaust valves 5 are arranged at the positions, close to the tops of the flanges 6, of the water inlet 9 and the water outlet 8, and when the centrifugal pump works, air in the pump shell 14 can be exhausted, so that the pump cavity 18 is filled with the aviation kerosene.

Specifically, as shown in fig. 1, the pump casing 14, the seal casing 15 and the upper casing 16 are all made of 7-series aircraft alloy aluminum materials, which can effectively prevent the aircraft oil from leaking during transportation.

The working principle is as follows: when in use, a worker opens the water injection hole 22 by unscrewing the sealing bolt 2 to carry out the first-time aviation kerosene injection, the motor 1 operates, the centrifugal pump operates to transport aviation kerosene, after the operation is finished, the impeller 11 at the bottom of the output shaft of the motor 1 stops operating, aviation kerosene stops transporting, the liquid storage cavity 12 close to the bottom of the impeller 11 can store certain aviation kerosene when the motor 1 stops operating, the inner groove 13 is arranged between the water inlet 9 and the pump cavity 18, the top of the inner groove 13 is provided with the upper baffle 21, the inner groove 13 is provided with the lower baffle 20 close to the pump cavity 18, when the pressures of the pump cavity 18, the inner groove 13 and the water inlet 9 are equal, the backflow phenomenon in the pump cavity 18 can be prevented, corresponding aviation kerosene can be stored in the pump cavity 18, when in the second-time use, the motor 1 rotates, the suction force generated by the impeller 11 can draw aviation kerosene from the liquid storage cavity 12 and the pump cavity 18 for use, and self-suction of the centrifugal pump can be formed, the structure is simple, the aviation kerosene is injected for the first time, the operation is simple, and the anti-leakage mechanism and the used 7-series aviation alloy aluminum material can prevent the aviation kerosene from leaking.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A vertical centrifugal pump suitable for aviation kerosene transportation comprises a pump shell (14) and a motor (1), and is characterized in that a pump cavity (18) is arranged inside the pump shell (14), a water inlet (9) is formed in one end of the pump cavity (18), a water outlet (8) is formed in the other end of the pump cavity (18), an anti-leakage mechanism is arranged at the bottom of the motor (1), the bottom of the anti-leakage mechanism is connected with the pump shell (14) through a second bolt (19), an impeller (11) is fixedly installed in the pump cavity (18) by penetrating through the anti-leakage mechanism by an output shaft of the motor (1), a sealing shaft (4) which is rotatably connected with the bottom of the motor (1) and is close to the pump cavity (18), an annular liquid storage cavity (12) is formed in the pump cavity (18) and is close to the impeller (11), a water injection hole (22) is formed in the pump shell (14) and is locked outside the pump shell (14) through a sealing bolt (2), an inner groove (13) is formed in the pump cavity (18) close to the water inlet (9), an upper baffle (21) is arranged at the top of the inner groove (13), and a lower baffle (20) is arranged in the inner groove (13) close to the pump cavity (18).

2. The vertical centrifugal pump suitable for aviation kerosene transportation is characterized in that an upper shell (16) is arranged at the top of the anti-leakage mechanism, the upper shell (16) is connected with the motor (1) through a third bolt (7), a sealing shell (15) connected through a first bolt (17) is arranged at the bottom of the upper shell (16), and the bottom of the sealing shell (15) is connected with the pump shell (14) through a second bolt (19).

3. The vertical centrifugal pump suitable for aviation kerosene transportation is characterized in that a water baffle (10) is arranged inside the upper shell (16), the water baffle (10) is rotatably connected with an output shaft of the motor (1), a mechanical seal (3) is arranged inside the sealing shell (15), and the mechanical seal (3) is rotatably connected with the output shaft of the motor (1).

4. Vertical centrifugal pump adapted for transportation of aviation kerosene according to claim 1, characterized in that said water inlet (9) and outlet (8) are provided with flanges (6).

5. The vertical centrifugal pump suitable for aviation kerosene transportation is characterized in that the water inlet (9) and the water outlet (8) are provided with exhaust valves (5) near the top of the flange (6).

6. The vertical centrifugal pump suitable for aviation kerosene transportation according to claim 1, wherein said pump casing (14), seal casing (15) and upper casing (16) are all 7-series aircraft alloy aluminum materials.