CN220059913U

CN220059913U - Multistage centrifugal pump

Info

Publication number: CN220059913U
Application number: CN202320160658.3U
Authority: CN
Inventors: 刘振起
Original assignee: Suzhou City Jiekaili Industrial Equipment Co ltd
Current assignee: Suzhou City Jiekaili Industrial Equipment Co ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-11-21
Anticipated expiration: 2033-02-06

Abstract

The utility model discloses a multistage centrifugal pump, which comprises a pump body, wherein a bearing is arranged in the pump body, an impeller is arranged in the middle of the bearing, the impeller is of a disc-shaped structure, a reinforcing component for increasing internal water flow is arranged in the middle of the impeller, fixing components capable of stably rotating are arranged on planes on two sides of the impeller, a bracket is arranged on the outer side of the pump body, and the reinforcing component comprises: the impeller is of a disc-shaped structure, the clamping groove is formed in the middle of the arc-shaped surface of the impeller, the clamping groove is an annular groove, the blades are arranged in the clamping groove, a plurality of groups of blades are of an arc-shaped structure, the blades are uniformly arranged on the sleeve frame, the sleeve frame is arranged in the clamping groove, and the sleeve frame is sleeved outside the bearing.

Description

Multistage centrifugal pump

Technical Field

The utility model belongs to the technical field of centrifugal pumps, and particularly relates to a multistage centrifugal pump.

Background

The centrifugal pump is operated by utilizing the rotation of the impeller to make water generate centrifugal motion. Before the water pump is started, the pump shell and the water suction pipe are required to be filled with water, then the motor is started, the pump shaft drives the impeller and the water to do high-speed rotation motion, the water is centrifugally moved and thrown to the outer edge of the impeller, the water flows into the water pressing pipeline of the water pump through the runner of the volute pump shell, the common centrifugal pump can vibrate during working in the prior art, a protection device is not arranged on the outer side of the pump body, and the acting force effect of the rotation of the impeller on the water is poor.

The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a multistage centrifugal pump which has the advantages of high rotation efficiency and stable rotation.

In order to achieve the above purpose, the utility model provides a multistage centrifugal pump, which comprises a pump body, wherein a bearing is arranged in the pump body, an impeller is arranged in the middle of the bearing, the impeller is of a disc-shaped structure, a reinforcing component for increasing internal water flow is arranged in the middle of the impeller, fixing components capable of stably rotating are arranged on planes on two sides of the impeller, and a bracket is arranged on the outer side of the pump body.

In one example, the reinforcement assembly includes: impeller, clamp groove, blade, cover frame, the impeller is disc structure, and has seted up the clamp groove in impeller arcwall face intermediate position, the clamp groove is the annular groove, clamp groove internally mounted has the blade, multiunit the blade is the arc structure, the blade is evenly installed on the cover frame, the cover frame is arranged in the clamp groove, the cover frame cover is established in the bearing outside.

In one example, a securing assembly includes: the impeller is sleeved on the bearing, the supporting sleeves are symmetrically arranged on two sides of the impeller in plane, the supporting sleeves are sleeved on the bearing, the fixing rings are arranged at the middle positions of the supporting sleeves, the fixing rings are of annular structures, three groups of clamping blocks are arranged on the arc surfaces on the inner sides of the fixing rings, and the clamping blocks are of arc structures.

In one example, three groups of clamping grooves are formed in the bearing and are symmetrical to the fixing ring, the three groups of clamping grooves are correspondingly clamped with the three groups of clamping blocks on the fixing ring, and the clamping blocks are clamped inside the clamping grooves.

In one example, an inlet and outlet water section is arranged on the arc-shaped surface on the outer side of the pump body, the inlet and outlet water section is fixedly connected to the surface of the pump body, a coupler is arranged on one side of the bearing, and a bracket is arranged in the middle of the pump body.

In one example, the support is an annular structure and sleeved on the surface of the pump body, two groups of supports are welded with the pump body, support rods are installed between the two groups of supports, the support rods are arranged on two sides of the pump body, and the support rods are fixedly connected with the support rods through bolts.

The multistage centrifugal pump provided by the utility model has the following beneficial effects:

1. according to the utility model, the pump body is protected by the support, the acting force of the blades in the middle of the impeller on water in the pump body when the blades rotate is increased, and the working efficiency of the pump body is increased.

2. According to the utility model, the supporting sleeves at the two sides of the impeller are utilized to fix the impeller, so that the impeller is prevented from being unstable in the high-speed rotation process, and the middle fixing ring is utilized to be clamped with the clamping groove on the bearing, so that the supporting sleeve is convenient to install and detach.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic perspective view of another angle in the present utility model.

Fig. 3 is a schematic perspective view of a bearing according to the present utility model.

Fig. 4 is a schematic perspective view of a support sleeve according to the present utility model.

FIG. 5 is a side view in cross-section of the vane of the present utility model.

FIG. 6 is a cross-sectional view of a test structure of a retaining ring according to the present utility model.

In the figure: 1. a pump body; 2. a water inlet and outlet section; 3. a bearing; 4. a coupling; 5. a bracket; 6. a support rod; 7. an impeller; 8. a clamping groove; 9. a support sleeve; 10. a fixing ring; 11. a blade; 12. a sleeve frame; 13. a clamping groove; 14. and (5) clamping blocks.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the description with reference to the terms "one aspect," "some aspects," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present utility model. In this specification, the schematic representations of the above terms are not necessarily for the same scheme or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

Example 1

As shown in fig. 1 to 6, an embodiment of the present utility model provides a multistage centrifugal pump, which includes a pump body 1, a bearing 3 is installed in the pump body 1, an impeller 7 is installed in the middle of the bearing 3, the impeller 7 is in a disc-shaped structure, a reinforcing component for increasing internal water flow is installed in the middle of the impeller 7, fixing components for stabilizing rotation are installed on two side planes of the impeller 7, and a bracket 5 is installed on the outer side of the pump body 1.

Wherein, fixed subassembly includes: the impeller 7 is sleeved on the bearing 3, the supporting sleeve 9 is symmetrically arranged on two side planes of the impeller 7, the supporting sleeve 9 is sleeved on the bearing 3, the fixing ring 10 is arranged in the middle of the supporting sleeve 9, the fixing ring 10 is of an annular structure, three groups of clamping blocks 14 are arranged on the arc surface on the inner side of the fixing ring 10, and the clamping blocks 14 are of an arc structure.

Three groups of clamping grooves 13 are formed in symmetrical positions of the bearing 3 and the fixing ring 10, the three groups of clamping grooves 13 are correspondingly clamped with three groups of clamping blocks 14 on the fixing ring 10, and the clamping blocks 14 are clamped inside the clamping grooves 13.

The novel water inlet and outlet device is characterized in that a water inlet and outlet section 2 is arranged on an arc surface on the outer side of the pump body 1, the water inlet and outlet section 2 is fixedly connected to the surface of the pump body 1, a coupler 4 is arranged on one side of a bearing 3, and a bracket 5 is arranged in the middle of the pump body 1.

Wherein, the support 5 is annular structure and is sleeved on the surface of the pump body 1, two groups of the support 5 are welded with the pump body 1 together, a support rod 6 is arranged between the two groups of the support 5, the support rods 6 are arranged on two sides of the pump body 1, and the support rods 6 are fixedly connected with the support 5 through bolts

Wherein, the support sleeve 9 of impeller 7 both sides is fixed impeller 7, prevents that impeller 7 that causes in the high-speed rotatory in-process from being unstable, utilizes the fixed ring 10 in the middle to carry out the installation and the dismantlement of joint convenience support sleeve 9 with draw-in groove 13 on the bearing 3.

Example two

In accordance with a first aspect of the present utility model, a multistage centrifugal pump further includes a reinforcing assembly for reinforcing rotational centrifugation, the reinforcing assembly including: impeller 7, double-layered groove 8, blade 11, cover frame 12, impeller 7 is disc structure, and has seted up double-layered groove 8 in impeller 7 arcwall face intermediate position, double-layered groove 8 is the annular groove, double-layered groove 8 internally mounted has blade 11, multiunit blade 11 is the arc structure, blade 11 is evenly installed on cover frame 12, cover frame 12 is arranged in double-layered groove 8, cover frame 12 cover is established in the bearing 3 outside.

The support 5 protects the pump body 1, and the vane 11 in the middle of the impeller 7 is used for increasing the acting force on water in the pump body 1 when the vane 11 rotates, so that the working efficiency of the pump body 1 is increased.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, with reference to the description of method embodiments in part.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. The utility model provides a multistage centrifugal pump, its characterized in that, includes pump body (1), pump body (1) internally mounted has bearing (3), impeller (7) are installed to bearing (3) intermediate position, impeller (7) are disc structure, the reinforcing component that is used for increasing inside rivers is installed to impeller (7) intermediate position, and the fixed subassembly of stable rotation is installed on impeller (7) both sides plane, support (5) are installed in pump body (1) outside.

2. The multistage centrifugal pump according to claim 1, wherein the reinforcement assembly comprises: impeller (7), clamp groove (8), blade (11), cover frame (12), impeller (7) are disc structure, and have seted up clamp groove (8) in impeller (7) arcwall face intermediate position, clamp groove (8) are annular groove, clamp groove (8) internally mounted has blade (11), multiunit blade (11) are the arc structure, blade (11) evenly install on cover frame (12), in clamp groove (8) are arranged in to cover frame (12), cover frame (12) cover is established in the bearing (3) outside.

3. A multistage centrifugal pump according to claim 2, wherein the stationary assembly comprises: support cover (9), solid fixed ring (10), draw-in groove (13), fixture block (14), impeller (7) cover is established on bearing (3), and support cover (9) are installed to impeller (7) both sides plane symmetry, support cover (9) cover is established on bearing (3), and support cover (9) intermediate position installs solid fixed ring (10), gu fixed ring (10) are annular structure, and gu fixed ring (10) inboard arcwall face installs three group's fixture blocks (14), fixture block (14) are convex structure.

4. A multistage centrifugal pump according to claim 3, wherein three groups of clamping grooves (13) are formed in the bearing (3) at symmetrical positions with the fixing ring (10), the three groups of clamping grooves (13) are correspondingly clamped with the three groups of clamping blocks (14) on the fixing ring (10), and the clamping blocks (14) are clamped inside the clamping grooves (13).

5. The multistage centrifugal pump according to claim 1, wherein the water inlet and outlet section (2) is arranged on the arc surface on the outer side of the pump body (1), the water inlet and outlet section (2) is fixedly connected to the surface of the pump body (1), the shaft coupling (4) is arranged on one side of the bearing (3), and the bracket (5) is arranged in the middle of the pump body (1).

6. The multistage centrifugal pump according to claim 5, wherein the support (5) is of an annular structure and sleeved on the surface of the pump body (1), two groups of the support (5) and the pump body (1) are welded together, support rods (6) are installed between the two groups of the support (5), the support rods (6) are arranged on two sides of the pump body (1), and the support rods (6) are fixedly connected with the support (5) through bolts.