CN219672858U

CN219672858U - Vertical multistage pump

Info

Publication number: CN219672858U
Application number: CN202320997285.5U
Authority: CN
Inventors: 陈圣海; 杨木森; 金俊强; 叶聪策; 章学
Original assignee: Zhejiang Yonjou Technology Co ltd
Current assignee: Zhejiang Yonjou Technology Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-09-12
Anticipated expiration: 2033-04-27

Abstract

The utility model discloses a vertical multistage pump, which comprises a motor, a pump body and a base which are arranged from top to bottom, wherein a flow passage is formed at the inner lower part of the pump body, a detachable filter pipe is arranged at a water inlet of the flow passage, the filter pipe comprises a filter head, a filter screen and a filter pipeline, the head of the filter pipeline is cylindrical, the inner diameter of the filter pipeline is far greater than that of the water inlet, the filter pipeline can be clamped at the water inlet, and a groove is formed in the middle of the head of the filter pipeline; the filter screen is connected with the filter head in a pocket shape, the filter head comprises a clamping plate, an arc clamping plate is arranged on the clamping plate corresponding to the groove part, and a limiting device is further arranged on the clamping plate; and a baffle plate is arranged in the flow passage and is arranged behind the filter pipe and is designed integrally with the flow passage. Compared with the prior art, the self-absorption capacity is improved, and the vacuum pump is not easy to evacuate; a detachable filter cartridge is arranged at the water inlet, so that impurities in the water body can be filtered, and the abrasion degree of an impeller in the pump body is reduced.

Description

Vertical multistage pump

Technical Field

The present utility model relates to a water pump, and more particularly, to a vertical multi-stage pump.

Background

The vertical multistage pump can convey various different media from tap water to industrial liquid, is suitable for different temperatures, flow rates and pressure ranges, is suitable for non-corrosive liquid, and the CDLF vertical multistage pump is suitable for slightly corrosive liquid. The intelligent pump has the characteristics of high efficiency, low noise, attractive appearance, small volume, light weight, convenient maintenance, reliable sealing performance, no secondary pollution to the conveyed liquid, light corrosion resistance and the like, and can be provided with an intelligent protector according to the needs to effectively protect the dry rotation, water shortage, overload and the like of the pump. However, the water pump of the type has the main problems of poor self-absorption capability, easy evacuation, gas binding phenomenon, easy impurity residue in the pump body, impeller abrasion and the like when liquid is conveyed.

Disclosure of Invention

The utility model aims to overcome the defects and the shortcomings of the prior art and provide a vertical multistage pump with a detachable filter pipe, which is difficult to evacuate.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a vertical multistage pump, includes motor, pump body and the base that top-down set up, and the urceolus sets up in the pump body, the lower part is formed with the runner in the pump body, the runner water inlet is equipped with detachable filter tube, the filter tube includes filter head, filter screen and filtration pipeline, filtration pipeline head is cylindric and the internal diameter is greater than the water inlet internal diameter far away, can block in water inlet department, filtration pipeline head intermediate position is equipped with the recess; the filter screen is connected with the filter head in a pocket shape, the filter head comprises a clamping plate, an arc clamping plate is arranged on the clamping plate corresponding to the groove part, and a limiting device is further arranged on the clamping plate; and a baffle plate is arranged in the flow passage and is arranged behind the filter pipe and is designed integrally with the flow passage.

Further, the limiting device comprises a sucker, a screw rod connected with one end with a small inner diameter of the sucker and a fixing block integrally designed with the screw rod.

Further, a plurality of impellers connected with the shaft rod are arranged in the middle of the pump body, the impellers are connected with the guide vanes, the guide vanes are divided into a water inlet guide vane at the lower part, a plurality of support guide vanes at the middle part and a water outlet guide vane at the uppermost end, the motor operates to drive the pump shaft to enable the impellers to rotate, the water inlet guide vanes increase water pressure, the water inlet guide vanes stir the water to enter the impellers, the support guide vanes collect the water thrown out by the impellers, and the water outlet guide vanes convert the rotary motion of the water flowing out of the impellers into axial motion so that the water outlet of the pump body is sprayed out.

Preferably, the baffle plate is arranged at the junction of the lower end of the guide vane and the inside of the water inlet, the highest end of the baffle plate is clung to the lower end of the water inlet guide vane, the baffle plate enables water to accumulate to a certain height and flow to the guide vane, the pumping time is short, the self-priming capability of the vertical multi-stage pump can be effectively improved, and the phenomenon of gas binding is not easy to occur.

Further, a support is arranged at the upper end in the pump body, a pump shaft is arranged in the middle of the pump body, a coupler is arranged at the joint of the pump shaft and the support, the coupler is connected with a motor and a shaft lever, and a bearing is arranged at the lower end of the shaft lever.

Preferably, the lower end of the coupler is provided with a sealing seat connected with the outer cylinder and the pump shaft, and a mechanical seal is arranged at the joint of the sealing seat and the pump shaft and used for preventing liquid between the pump shaft and the pump body end cover from overflowing.

The beneficial effects of the utility model are as follows:

when a water body enters, the highest end of the baffle plate is accumulated to overflow to the impeller by the check action of the baffle plate, and the guide vane drives the impeller to rotate the water body by the rotation of the pump shaft, so that the water pressure of the water body is increased, the water body is pumped out after the water body is pumped up, the pumping time is short, the flow requirement of the pumped water body is reduced, the self-priming capacity of the vertical multistage pump is improved, and the vertical multistage pump is difficult to evacuate and is difficult to generate a gas binding phenomenon; the detachable filter cartridge is installed at the water inlet, impurities in the water body are filtered, the abrasion degree of the impeller in the pump body is reduced, and the service life of the vertical multistage pump is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.

FIG. 1 is a schematic cross-sectional view of a vertical multistage pump embodiment of the utility model;

FIG. 2 is an enlarged detail view at FIG. 1A;

FIG. 3 is a schematic view of a removable filter tube of an embodiment of a vertical multistage pump of the present utility model;

FIG. 4 is a side view of a filter head of one embodiment of a vertical multistage pump of this utility model;

in the figure, a 1-motor; 2-a pump body; 21-a bracket; 22-an outer cylinder; 23-a base; 3-a sealing seat; 4-mechanical sealing; 5-impeller; 51-guide vanes; 511-support vanes; 512-water inlet guide vanes; 513-water outlet guide vanes; 6-a pump shaft; 61-a shaft; 62-a bearing; 7-coupling; 8-a filter tube; 81-filter heads; 811-a card board; 812-arc splint; 813-a limiting device; 8131-suction cup; 8132-screw; 8133-fixed block; 82-a filter screen; 83-a filter tube; 831-grooves; 9-baffle plate.

Detailed Description

In order to make the technical objects, technical solutions and advantageous effects of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings.

It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.

The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, a vertical multistage pump comprises a motor 1, a pump body 2 and a base 23 which are arranged from top to bottom, wherein an outer cylinder 22 is arranged in the pump body 2, a flow passage is formed at the inner lower part of the pump body 2, a detachable filter pipe 8 is arranged at a water inlet of the flow passage, the filter pipe 8 comprises a filter head 81, a filter screen 82 and a filter pipeline 83, the head of the filter pipeline 83 is cylindrical, the inner diameter of the filter pipeline is far greater than the inner diameter of the water inlet, the filter pipeline 83 can be clamped at the water inlet, and a groove 831 is formed at the middle position of the head of the filter pipeline 83; the filter screen 82 is connected with the filter head 81 in a pocket shape, the filter head 81 comprises a clamping plate 811, an arc clamping plate 812 is arranged on the clamping plate 811 corresponding to the groove 831, and a limiting device 813 is further arranged on the clamping plate 811; and a baffle plate 9 is also arranged in the flow passage, and the baffle plate 9 is arranged behind the filter pipe 8 and is designed integrally with the flow passage.

As shown in fig. 4, the restricting device 813 includes a suction cup 8131, a screw 8132 connected to an end of the suction cup 8131 having a small inner diameter, and a fixing block 8133 integrally designed with the screw 8132.

As shown in fig. 2, the middle part of the pump body 2 is provided with a plurality of impellers 5 connected with the shaft rod 61, the impellers 5 are connected with the guide vanes 51, the guide vanes 51 are divided into a water inlet guide vane 512 at the lower part, a plurality of support guide vanes 511 at the middle part and a water outlet guide vane 513 at the uppermost end, the motor 1 operates to drive the pump shaft 6 to rotate the impellers 5, the water pressure is increased for the water, the water inlet guide vanes 512 stir the water to enter the impellers 5, the support guide vanes 511 collect the water thrown out by the impellers 5, and the water outlet guide vanes 513 convert the rotary motion of the water flowing out of the impellers 5 into axial motion so as to spray out of the water outlet of the pump body 2.

As shown in fig. 1 and fig. 2, the baffle plate 9 is disposed at the junction between the lower end of the guide vane 51 and the inside of the water inlet, the highest end of the baffle plate 9 is tightly attached to the lower end of the water inlet guide vane 512, the baffle plate 9 enables water to accumulate to a certain height and flow to the guide vane 51, pumping time is short, self-priming capability of the vertical multi-stage pump can be effectively improved, and gas binding phenomenon is not easy to occur.

As shown in fig. 1, a bracket 21 is arranged at the upper end in the pump body 2, a pump shaft 6 is arranged in the middle of the pump body 2, a coupling 7 is arranged at the joint of the pump shaft 6 and the bracket 21, the coupling 7 is connected with a motor 1 and a shaft rod 61, and a bearing 62 is arranged at the lower end of the shaft rod 61.

The lower end of the coupler 7 is provided with a sealing seat 3 connected with the outer cylinder 22 and the pump shaft 6, the joint of the sealing seat 3 and the pump shaft 6 is provided with a mechanical seal 4, and the mechanical seal 4 prevents liquid between the pump shaft 6 and the end cover of the pump body 2 from overflowing.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

While the utility model has been described with reference to several particular embodiments, it should be understood that the utility model is not limited to the particular embodiments disclosed. The utility model is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. The utility model provides a vertical multistage pump, includes motor (1), pump body (2) and base (23) that top-down set up, urceolus (22) set up in pump body (2), its characterized in that: the lower part in the pump body (2) is provided with a flow passage, a detachable filter pipe (8) is arranged at the water inlet of the flow passage, the filter pipe (8) comprises a filter head (81), a filter screen (82) and a filter pipeline (83), the head of the filter pipeline (83) is cylindrical, the inner diameter of the filter pipeline is far greater than that of the water inlet, the filter pipeline can be clamped at the water inlet, and a groove (831) is arranged at the middle position of the head of the filter pipeline (83); the filter screen (82) is connected with the filter head (81) in a pocket shape, the filter head (81) comprises a clamping plate (811), an arc clamping plate (812) is arranged on the clamping plate (811) corresponding to the groove (831), and a limiting device (813) is further arranged on the clamping plate (811); a baffle plate (9) is further arranged in the flow passage, and the baffle plate (9) is arranged behind the filter pipe (8) and is designed integrally with the flow passage.

2. A vertical multistage pump according to claim 1, wherein: the limiting device (813) comprises a sucker (8131), a screw (8132) connected with one end of the sucker (8131) with a small inner diameter, and a fixed block (8133) integrally designed with the screw (8132).

3. A vertical multistage pump according to claim 1, wherein: the middle part of the pump body (2) is provided with a plurality of impellers (5) connected with a shaft lever (61), the impellers (5) are connected with guide vanes (51), and the guide vanes (51) are divided into a water inlet guide vane (512) at the lower part, a plurality of support guide vanes (511) at the middle part and a water outlet guide vane (513) at the uppermost end.

4. A vertical multistage pump according to claim 3, characterized in that: the baffle plate (9) is arranged at the junction of the lower end of the guide vane (51) and the inside of the water inlet, and the highest end of the baffle plate (9) is clung to the lower end of the water inlet guide vane (512).

5. A vertical multistage pump according to claim 1, wherein: the upper end is equipped with support (21) in the pump body (2), pump shaft (6) are equipped with in the middle of the pump body (2), pump shaft (6) are provided with shaft coupling (7) with support (21) junction, shaft coupling (7) hookup motor (1) and axostylus axostyle (61), axostylus axostyle (61) lower extreme is equipped with bearing (62).

6. A vertical multistage pump according to claim 5, wherein: the lower end of the coupler (7) is provided with a sealing seat (3) connected with the outer cylinder (22) and the pump shaft (6), and a mechanical seal (4) is arranged at the joint of the sealing seat (3) and the pump shaft (6).