Marine vertical centrifugal pump

Abstract

The utility model relates to the technical field of centrifugal pumps, in particular to a marine vertical centrifugal pump which comprises a pump body, a water inlet end and a water outlet end are arranged at the two ends of the pump body respectively, an installation end used for installing a motor is arranged at the top end of the pump body, a base is fixedly connected to the lower end of the pump body, and extension plates are arranged on the two sides of the base. The extension plates on the two sides of the bottom plate are respectively provided with an adjustable fixing assembly, the adjustable fixing assemblies on the two sides limit and fix the water inlet end and the water outlet end respectively so as to reduce vibration generated in the using process, the installation contact area is increased through the extension plates on the two sides of the bottom plate, the whole pump body is installed more stably, and the service life of the pump body is prolonged. And meanwhile, the water inlet end and the water outlet end on the two sides are limited and fixed through the fixing assemblies on the two sides, overall vibration of the pump body in the using process is reduced, normal and stable operation of the pump body is guaranteed, and the service life of the pump body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, in particular to a vertical centrifugal pump for ships. Background Art

[0002] With the rapid development of the shipping industry, the requirements for ship equipment are also increasing. In particular, marine centrifugal pumps play a vital role in handling various liquid transportation tasks on ships. The installation of existing centrifugal pumps is usually simple, with both ends connected to the pipeline and the bottom fixed with bolts. However, vibration will occur during use, resulting in performance degradation, shortened lifespan and even damage, which greatly affects the safe operation and economic benefits of the ship.

[0003] Therefore, a marine vertical centrifugal pump is needed to improve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a marine vertical centrifugal pump to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A marine vertical centrifugal pump comprises a pump body, wherein two ends of the pump body are respectively provided with a water inlet end and a water outlet end, the top of the pump body is provided with a mounting end for mounting a motor, and the lower end of the pump body is fixedly connected with a base, extension plates are provided on both sides of the base, and adjustable fixing components are provided on the extension plates on both sides, and the adjustable fixing components on both sides respectively limit and fix the water inlet end and the water outlet end to reduce vibration generated during use.

[0007] As a preferred solution of the utility model, the adjustable fixing assembly includes a group of symmetrically arranged columns, the upper end sliding sleeve of the column is provided with a gasket, a spring is connected between the gasket and the upper surface of the extension plate, a pull ring is provided between the upper ends of the columns on both sides, and docking protrusions are provided at both ends of the pull ring, and mounting holes are opened on the docking protrusions. The top end of the column is adjusted and limited by the nut docking protrusion.

[0008] As a preferred solution of the utility model, the pull ring is in a semicircular shape, and a rubber cushion layer is provided on its inner side.

[0009] As a preferred solution of the utility model, lugs are fixedly connected to both sides of the extension plate, and screw holes for installation are provided around each lug and the base.

[0010] As a preferred solution of the utility model, a cavity is opened inside the mounting end, a rotatable column is arranged in the cavity, the upper end of the column has a docking end that cooperates with the output end of the motor, and an mounting cavity is opened at the lower end of the cavity, and a bearing and a mechanical seal are respectively arranged in the mounting cavity.

[0011] As a preferred solution of the utility model, a plurality of annular grooves are formed at equal intervals on the outer side of the column, and a plurality of convex rings that are plugged into the annular grooves are connected at equal intervals to the side of the cavity.

[0012] As a preferred solution of the utility model, the lower end of the column is fixedly connected to a shaft body, the lower end of the shaft body extends to the inside of the pump body and is connected to an impeller, and a sealing ring is provided at the connection between the shaft body and the pump body.

[0013] As a preferred solution of the utility model, a mounting groove is provided at the end of the water inlet end, and a filter screen cylinder is inserted into the mounting groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model increases the installation contact area by extending plates on both sides of the bottom plate, making the installation of the entire pump body more stable and avoiding vibration during use. At the same time, the water inlet end and the water outlet end on both sides are limited and fixed by fixing components on both sides, thereby reducing the overall vibration of the pump body during use, ensuring the normal and stable operation of the pump body and extending the service life of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view of the utility model;

[0018] Figure 3 It is a cross-sectional view of the utility model;

[0019] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0020] In the figure: motor 1, pump body 2, mounting end 3, water inlet end 4, water outlet end 5, pull ring 6, spring 7, column 8, extension plate 9, lug 10, filter screen cylinder 11, impeller 12, docking end 13, column 14, convex ring 15, bearing 16, mechanical seal 17, mounting cavity 18, shaft body 19, sealing ring 20. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant. Several embodiments of the utility model are given. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] See also Figure 1-4 , the utility model provides a technical solution:

[0026] For example, please refer to Figure 1 , 2 , 3 and 4, a marine vertical centrifugal pump comprises a pump body 2, wherein the two ends of the pump body 2 are respectively provided with a water inlet end 4 and a water outlet end 5, the top of the pump body 2 is provided with a mounting end 3 for mounting a motor 1, and the lower end of the pump body 2 is fixedly connected with a base, extension plates 9 are provided on both sides of the base, and adjustable fixing components are provided on the extension plates 9 on both sides, and the adjustable fixing components on both sides respectively limit and fix the water inlet end 4 and the water outlet end 5 to reduce vibration generated during use.

[0027] The installation contact area is increased by the extension plates 9 on both sides of the bottom plate, making the installation of the entire pump body 2 more stable and avoiding vibration during use. At the same time, the water inlet end 4 and the water outlet end 5 on both sides are limited and fixed by the fixing components on both sides, thereby reducing the overall vibration of the pump body 2 during use, ensuring the normal and stable operation of the pump body 2 and extending the service life of the pump body 2.

[0028] Please refer to Figure 1 , 2 , 3 and 4, the adjustable fixing assembly includes a group of symmetrically arranged columns 8, the upper end sliding sleeve of the column 8 is provided with a gasket, a spring 7 is connected between the gasket and the upper surface of the extension plate 9, a pull ring 6 is provided between the upper ends of the columns 8 on both sides, both ends of the pull ring 6 are provided with docking protrusions, and mounting holes are provided on the docking protrusions. The top of the column 8 is adjusted and limited by the nut docking protrusion, the pull ring 6 is semicircular, and a rubber cushion layer is provided on its inner side, and lugs 10 are fixedly connected to both sides of the extension plate 9, and screw holes for installation are provided on each lug 10 and the surroundings of the base.

[0029] The upper ends of the water inlet end 4 and the water outlet end 5 are limited by the pull ring 6, and the spring 7 is passed through the two ends of the pull ring 6. The nut is used to screw it to drive the pull ring 6 to descend. The descending pull ring 6 compresses the spring 7, and at the same time, the water inlet end 4 and the water outlet end 5 are tightened downward, thereby ensuring the structural stability of the entire pump body 2.

[0030] Please refer to Figure 1 , 2 , 3 and 4, a cavity is provided inside the mounting end 3, a rotatable column 14 is provided in the cavity, the upper end of the column 14 has a docking end 13 which cooperates with the output end of the motor 1, a mounting cavity 18 is provided at the lower end of the cavity, a bearing 16 and a mechanical seal 17 are provided in the mounting cavity 18, a plurality of annular grooves are provided at equal intervals on the outer side of the column 14, and a plurality of convex rings 15 which cooperate with the annular grooves are connected to the side of the cavity at equal intervals.

[0031] The output end of the motor 1 is mated with the docking end 13 on the column 14 to drive the rotation of the column 14. The column 14 is plugged into the ring groove through the convex ring 15, making it more stable during rotation and reducing vibration during operation.

[0032] The lower end of the column 14 is fixedly connected to a shaft 19 , the lower end of the shaft 19 extends into the pump body 2 and is connected to the impeller 12 , and a sealing ring 20 is provided at the connection between the shaft 19 and the pump body 2 .

[0033] An installation groove is provided at the end of the water inlet end 4, and a filter screen cartridge 11 is inserted into the installation groove. The filter screen cartridge 11 is detachable and can be easily disassembled to filter impurities in the water entering the pump body 2, thereby ensuring the safety of the internal components of the pump body 2.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine vertical centrifugal pump, comprising a pump body (2), wherein the two ends of the pump body (2) are respectively provided with a water inlet end (4) and a water outlet end (5), the top end of the pump body (2) is provided with a mounting end (3) for mounting a motor (1), and the lower end of the pump body (2) is fixedly connected with a base, characterized in that: Extension plates (9) are provided on both sides of the base, and adjustable fixing components are provided on the extension plates (9) on both sides. The adjustable fixing components on both sides respectively limit and fix the water inlet end (4) and the water outlet end (5) to reduce vibration generated during use.

2. The marine vertical centrifugal pump according to claim 1, characterized in that: The adjustable fixing assembly comprises a group of symmetrically arranged columns (8), the upper end sliding sleeve of the column (8) is provided with a gasket, a spring (7) is connected between the gasket and the upper surface of the extension plate (9), a pull ring (6) is provided between the upper ends of the columns (8) on both sides, and both ends of the pull ring (6) are provided with docking protrusions, and mounting holes are opened on the docking protrusions. The top end of the column (8) is adjusted and limited by a nut docking protrusion.

3. The marine vertical centrifugal pump according to claim 2, characterized in that: The pull ring (6) is in a semicircular shape, and a rubber cushion layer is arranged on its inner side.

4. The marine vertical centrifugal pump according to claim 3, characterized in that: Lugs (10) are fixedly connected to both sides of the extension plate (9), and screw holes for installation are provided around each lug (10) and the base.

5. The marine vertical centrifugal pump according to any one of claims 1 to 4, characterized in that: The installation end (3) has a cavity inside, a rotatable column (14) is arranged in the cavity, the upper end of the column (14) has a docking end (13) that cooperates with the output end of the motor (1), and the lower end of the cavity has an installation cavity (18), and a bearing (16) and a mechanical seal (17) are respectively arranged in the installation cavity (18).

6. The marine vertical centrifugal pump according to claim 5, characterized in that: The outer side of the column (14) is provided with a plurality of annular grooves at equal intervals, and the side of the cavity is connected with a plurality of convex rings (15) at equal intervals and plugged into the annular grooves.

7. The marine vertical centrifugal pump according to claim 6, characterized in that: The lower end of the column (14) is fixedly connected to a shaft (19), the lower end of the shaft (19) extends into the interior of the pump body (2) and is connected to an impeller (12), and a sealing ring (20) is provided at the connection between the shaft (19) and the pump body (2).

8. The marine vertical centrifugal pump according to claim 5, characterized in that: The end of the water inlet end (4) is provided with a mounting groove, and a filter screen cylinder (11) is inserted into the mounting groove.

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