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A semi-open impeller stainless steel centrifugal pump

A centrifugal pump, semi-open technology, applied in the field of semi-open impeller stainless steel centrifugal pump, can solve the problems affecting the performance of the conveying medium of the centrifugal pump, the wear of the pump body and its internal parts, and the inability to carry out medium conveying, etc., to achieve the working life Extended, good sealing effect, strong water absorption effect

Active Publication Date: 2018-02-13
GUANGDONG LINGXIAO PUMP IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, closed impellers are mostly used for impellers, which have higher requirements on the flow channel, and the flow in the pump body needs to be designed with a wider structure, and this type of design can only be used when the medium is large. For small In the field of flow, it is impossible to transport the medium
When it is used to convey the medium with particles, the particles in the medium are easy to stick to the closed impeller, which affects the centrifugal force and the performance of the conveying medium of the centrifugal pump; at the same time, the particles in the medium will cause impact on the inside of the pump body Corrosion, which causes the pump body and its internal parts to wear out too quickly, shortening the service life of the pump body
[0004] In order to solve the technical defects of low delivery efficiency, short service life and fast wear in the semi-open impeller stainless steel centrifugal pump in the prior art, the present invention proposes a semi-open impeller stainless steel centrifugal pump

Method used

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  • A semi-open impeller stainless steel centrifugal pump
  • A semi-open impeller stainless steel centrifugal pump

Examples

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Embodiment 1

[0022] A semi-open impeller stainless steel centrifugal pump, including a pump casing assembly 4, an impeller 11, a bearing 18, a pump cover 13 and a motor 14, the impeller 11 is sleeved on the bearing 18 through a bushing, and one side of the impeller 11 The spring washer 10 is in contact with the first sliding sleeve 16, and the other side is in contact with the second sliding sleeve 19 through the mechanical seal 12. The mechanical seal 12 can pass through the second sliding sleeve 19 and be clamped on the In the cylindrical draw-in groove in the pump cover 13, the gap between the sliding retaining sleeve one 16 and the impeller 11 is adjusted by the retaining sleeve nut one 15, and the sliding retaining sleeve two 19 is adjusted by the retaining sleeve nut two 17 and The gap between the impellers 11, the impeller 11 is a semi-open impeller, the centrifugal pump also includes a dust cover 1, a middle O-ring 2, a hexagon socket bolt 3, a small O-ring 5, a screw Plug 6, large...

Embodiment 2

[0024] A semi-open impeller stainless steel centrifugal pump, including a pump casing assembly 4, an impeller 11, a bearing 18, a pump cover 13 and a motor 14, the impeller 11 is sleeved on the bearing 18 through a bushing, and one side of the impeller 11 The spring washer 10 is in contact with the first sliding sleeve 16, and the other side is in contact with the second sliding sleeve 19 through the mechanical seal 12. The mechanical seal 12 can pass through the second sliding sleeve 19 and be clamped on the In the cylindrical draw-in groove in the pump cover 13, the gap between the sliding retaining sleeve one 16 and the impeller 11 is adjusted by the retaining sleeve nut one 15, and the sliding retaining sleeve two 19 is adjusted by the retaining sleeve nut two 17 and The gap between the impellers 11, the impeller 11 is a semi-open impeller, the centrifugal pump also includes a dust cover 1, a middle O-ring 2, a hexagon socket bolt 3, a small O-ring 5, a screw Plug 6, large...

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Abstract

The invention provides a half-opened impeller stainless steel centrifugal pump. The centrifugal pump comprises a pump shell component (4), an impeller (11), a bearing (18), a pump cover (13) and a motor (14). The bearing (18) is sleeved by the impeller (11) by virtue of a shaft sleeve; and one side of the impeller (11) makes contact with a slide stop sleeve I (16) through a spring washer (10), and the other side of the impeller (11) makes contact with a slide stop sleeve II (19) through a mechanical seal (12). The mechanical seal (12) can penetrate through the slide stop sleeve II (19) to be clamped in a cylindrical clamping groove in the pump cover (13); a gap between the slide stop sleeve I (16) and the impeller (11) is adjusted through a stop sleeve nut I (15); and a gap between the slide stop sleeve II (19) and the impeller (11) is adjusted through a stop sleeve nut II (17). The centrifugal pump provides adjustable and controllable impeller gaps, prevents local wear, widens the performance range, and is scientific in design and convenient for operation.

Description

technical field [0001] The invention relates to the technical field of pump bodies, in particular to a semi-open impeller stainless steel centrifugal pump. Background technique [0002] Centrifugal pumps have different names from different angles, one of which can be divided into closed impeller centrifugal pumps, open impeller centrifugal pumps and semi-open impeller centrifugal pumps. The semi-open impeller has only a rear cover, which is suitable for conveying easy Sedimentation or liquids containing suspended solids, the efficiency of which is between that of open and closed impeller centrifugal pumps. [0003] Centrifugal pumps are widely used as a medium conveying device. The traditional centrifugal pump is mainly composed of a pump body, a rotating shaft, an impeller and a shaft seal device. The pump body is provided with a medium inlet, a medium outlet, and a flow channel connecting the medium inlet and the medium outlet. Generally, closed impellers are mostly used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D7/04F04D29/20F04D29/22F04D29/08
CPCF04D7/04F04D29/086F04D29/20F04D29/2216
Inventor 陈家潮李光勇梁瑞军
Owner GUANGDONG LINGXIAO PUMP IND
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