CN211525089U

CN211525089U - Resistance to compression type vertical centrifugal pump

Info

Publication number: CN211525089U
Application number: CN201922471917.0U
Authority: CN
Inventors: 毛居良; 周广廷; 张伟
Original assignee: Shandong Beifang Water Technology Co ltd
Current assignee: Shandong Beifang Water Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-18
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a compression-resistant vertical centrifugal pump, which comprises a pump body component, a base, a compression-resistant component and a motor; by arranging the pump body assembly, the calibers of the water inlet and the water outlet are the same, and the central lines of the water inlet and the water outlet are on the same horizontal line, so that the water pressure can not act on the output shaft and the impeller, the compression resistance of the centrifugal pump is improved, the liquid flows smoothly, the loss of the liquid speed is small, and the conveying performance of the centrifugal pump is ensured; by arranging the compression-resistant assembly, the output shaft of the motor and the impeller adopt the same shaft, so that the vibration and noise generated in the operation process of the centrifugal pump are reduced, the stable and efficient operation of the centrifugal pump is ensured, the working efficiency of the centrifugal pump is improved, the dynamic balance of the large-diameter impeller is better, and the vibration generated in the operation process of the impeller is reduced; through setting up shrouding and seal ring, shrouding and seal ring cooperation operation form mechanical seal in the outside of output shaft below, improve the sealing performance of centrifugal pump, and force the ring circulation in the below formation of impeller, improve the life of centrifugal pump.

Description

Resistance to compression type vertical centrifugal pump

Technical Field

The utility model belongs to the technical field of the centrifugal pump, especially, relate to a resistance to compression type vertical centrifugal pump.

Background

The water inlet pipe of the impeller of the existing vertical centrifugal pump is downward, a medium enters from a lower part to a higher part through the impeller during working, the pumped medium generates a downward acting force on the impeller, the weights of moving parts such as the impeller, a pump shaft and a motor rotor generate gravity downward, the two forces are superposed to act on the bearing, so that the axial load of the bearing is increased, the service life of the bearing is shortened, the noise is increased due to the increase of the resistance, the electric energy is consumed, the existing vertical centrifugal pump has poor pressure resistance, the damage of a pump body is easily caused, the service life of the centrifugal pump is shortened, and a pressure-resistant vertical centrifugal pump is urgently needed to be developed to solve the problems and facilitate market popularization and application.

The existing vertical centrifugal pump has poor pressure resistance, easily causes the damage of a pump body, reduces the service life of the centrifugal pump, has non-coaxial motor and impeller and larger vibration and noise, causes the unstable operation of the centrifugal pump, and reduces the working efficiency of the centrifugal pump.

SUMMERY OF THE UTILITY MODEL

To foretell not enough, the utility model provides a resistance to compression type vertical centrifugal pump.

The utility model provides a technical scheme that its technical problem adopted is: a pressure-resistant vertical centrifugal pump comprises a pump body assembly, a base, a pressure-resistant assembly and a motor; the pump body assembly is fixed above the base through a bolt; the compression-resistant assembly passes through the upper part of the bolt pump body assembly; the motor is fixed above the pressure-resistant assembly through bolts.

Preferably, the pump body assembly comprises a pump body, a water inlet, a water outlet and a mounting groove; the pump body is fixed above the base through bolts; the mounting groove is formed in the middle of the lower portion of the pump body; the water inlet is arranged on the left side of the pump body; the water outlet is arranged on the left side of the pump body.

As optimization, the pump body is cylindrical; the water inlet and the water outlet are of the same size, and are arranged integrally with the pump body, and the central lines of the water inlet and the water outlet are on the same horizontal line; the size of mounting groove matches with the size of base upper end, and the joint has the rubber pad between mounting groove and the base.

Preferably, the pressure-resistant assembly comprises an upper shell, a lower shell, an output shaft, an impeller, a fixing plate, a sealing plate and a sealing ring; the upper shell is fixed below the motor through a bolt; the lower shell is fixed below the upper shell through bolts; the number of the fixing plates is two, and the fixing plates are fixed inside the upper shell and the lower shell through bolts; the output shaft is an output shaft of the motor, and a bearing and a sealing ring are arranged between the output shaft and the fixing plate; the impeller is fixed below the output shaft through a bolt and is positioned below the inner part of the lower shell; the seal ring is fixed below the fixed plate through a bolt; the shrouding welds in the outside of output shaft below, and the upper end of shrouding and the lower surface laminating of seal ring.

Preferably, the inner wall of the upper shell is aligned with the inner wall of the lower shell; the size of the fixed plate is matched with the sizes of the upper shell and the lower shell; the sealing plate is obliquely arranged, and the size of the sealing plate is matched with that of the sealing ring; the cross section of the seal ring is rectangular.

The utility model has the advantages that:

1. the utility model discloses the setting of pump body subassembly, water inlet and delivery port bore are the same, and the central line of water inlet and delivery port is on same water flat line, makes water pressure can not act on output shaft and impeller, improves the compressive property of centrifugal pump, and liquid flow is smooth and easy, and the loss of liquid speed is little, guarantees the transport performance of centrifugal pump.

2. The utility model discloses the setting of resistance to compression subassembly, the output shaft and the impeller of motor adopt same axle, reduce vibration and noise that the centrifugal pump operation in-process produced, guarantee the steady high-efficient operation of centrifugal pump, improve the work efficiency of centrifugal pump, major diameter impeller dynamic balance is better, reduces the vibrations that the impeller operation in-process produced.

3. The utility model discloses the setting of shrouding and seal ring, shrouding and seal ring cooperation operation form mechanical seal in the outside of output shaft below, avoid water to leak from the output shaft, improve the sealing performance of centrifugal pump, and form the forced circulation of ring in the below of impeller, improve the life of centrifugal pump.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the pump body assembly of the present invention.

Fig. 3 is a schematic structural view of the pressure-resistant assembly of the present invention.

In the figure:

1. the pump body subassembly, 11, the pump body, 12, water inlet, 13, delivery port, 14, mounting groove, 2, base, 3, resistance to compression subassembly, 31, upper casing, 32, lower casing, 33, output shaft, 34, impeller, 35, fixed plate, 36, shrouding, 37, seal ring, 4, motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

The pressure-resistant vertical centrifugal pump shown in the attached fig. 1 to 3 comprises a pump body assembly 1, a base 2, a pressure-resistant assembly 3 and a motor 4; the pump body assembly 1 is fixed above the base 2 through bolts; the compression-resistant assembly 3 passes through the upper part of the bolt pump body assembly 1; the motor 4 is fixed above the pressure-resistant component 3 through bolts.

In the present embodiment, the pump body assembly 1 includes a pump body 11, a water inlet 12, a water outlet 13 and a mounting groove 14; the calibers of the water inlet 12 and the water outlet 13 are the same, and the central lines of the water inlet 12 and the water outlet 13 are on the same horizontal line, so that the water pressure can not act on the output shaft 33 and the impeller 34, the pressure resistance of the centrifugal pump is improved, the liquid flows smoothly, the loss of the liquid speed is small, and the conveying performance of the centrifugal pump is ensured.

In this embodiment, the pressure-resistant assembly 3 includes an upper housing 31, a lower housing 32, an output shaft 33, an impeller 34, a fixing plate 35, a sealing plate 36 and a sealing ring 37; the output shaft 33 and the impeller 34 of motor adopt same axle, reduce vibration and noise that the centrifugal pump operation in-process produced, guarantee the steady high-efficient operation of centrifugal pump, improve the work efficiency of centrifugal pump, large diameter impeller 34 dynamic balance is better, reduce the vibrations that impeller 34 operation in-process produced, shrouding 36 and seal ring 37 cooperation operation, form mechanical seal in the outside of output shaft 33 below, avoid water to leak from output shaft 33, improve the sealing performance of centrifugal pump, and form the forced circulation of ring under impeller 34, improve the life of centrifugal pump.

The working principle is as follows: when in use, the calibers of the water inlet 12 and the water outlet 13 are the same, and the central lines of the water inlet 12 and the water outlet 13 are on the same horizontal line, so that the water pressure can not act on the output shaft 33 and the impeller 34, the pressure resistance of the centrifugal pump is improved, the liquid flows smoothly, the loss of the liquid speed is small, the conveying performance of the centrifugal pump is ensured, the output shaft 33 of the motor and the impeller 34 adopt the same shaft, the vibration and the noise generated in the operation process of the centrifugal pump are reduced, the stable and efficient operation of the centrifugal pump is ensured, the working efficiency of the centrifugal pump is improved, the dynamic balance of the large-diameter impeller 34 is better, the vibration generated in the operation process of the, a mechanical seal is formed on the outer side below the output shaft 33, so that water is prevented from leaking from the output shaft 33, the sealing performance of the centrifugal pump is improved, forced circular circulation is formed below the impeller 34, and the service life of the centrifugal pump is prolonged.

The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a resistance to compression type vertical centrifugal pump which characterized in that: comprises a pump body component (1), a base (2), a compression-resistant component (3) and a motor (4); the pump body assembly (1) is fixed above the base (2) through bolts; the compression-resistant assembly (3) passes through the upper part of the bolt pump body assembly (1); the motor (4) is fixed above the pressure-resistant assembly (3) through a bolt.

2. The pressure-resistant vertical centrifugal pump of claim 1, wherein: the pump body assembly (1) comprises a pump body (11), a water inlet (12), a water outlet (13) and a mounting groove (14); the pump body (11) is fixed above the base (2) through bolts; the mounting groove (14) is formed in the middle position below the pump body (11); the water inlet (12) is arranged on the left side of the pump body (11); the water outlet (13) is arranged on the left side of the pump body (11).

3. The pressure-resistant vertical centrifugal pump of claim 2, wherein: the pump body (11) is cylindrical; the water inlet (12) and the water outlet (13) are of the same size, the water inlet (12) and the water outlet (13) are arranged in an integrated manner with the pump body (11), and the central lines of the water inlet (12) and the water outlet (13) are positioned on the same horizontal line; the size of mounting groove (14) matches with the size of base (2) upper end, and the joint has the rubber pad between mounting groove (14) and base (2).

4. The pressure-resistant vertical centrifugal pump of claim 1, wherein: the pressure-resistant assembly (3) comprises an upper shell (31), a lower shell (32), an output shaft (33), an impeller (34), a fixing plate (35), a sealing plate (36) and a sealing ring (37); the upper shell (31) is fixed below the motor (4) through bolts; the lower shell (32) is fixed below the upper shell (31) through bolts; the number of the fixing plates (35) is two, and the fixing plates (35) are fixed inside the upper shell (31) and the lower shell (32) through bolts; the output shaft (33) is an output shaft of the motor (4), and a bearing and a sealing ring are arranged between the output shaft (33) and the fixing plate (35); the impeller (34) is fixed below the output shaft (33) through a bolt, and the impeller (34) is positioned below the inner part of the lower shell (32); the seal ring (37) is fixed below the fixing plate (35) through bolts; the sealing plate (36) is welded on the outer side below the output shaft (33), and the upper end of the sealing plate (36) is attached to the lower surface of the sealing ring (37).

5. The pressure-resistant vertical centrifugal pump of claim 4, wherein: the inner wall of the upper housing (31) is aligned with the inner wall of the lower housing (32); the size of the fixing plate (35) is matched with that of the upper shell (31) and the lower shell (32); the sealing plate (36) is obliquely arranged, and the size of the sealing plate (36) is matched with that of the sealing ring (37); the cross section of the seal ring (37) is rectangular.