CN202451428U

CN202451428U - Chemical engineering leakage-free corrosion resisting centrifugal pump

Info

Publication number: CN202451428U
Application number: CN2012200462261U
Authority: CN
Inventors: 曹战龙; 李天晓; 郭新忠
Original assignee: DONGYING HUATAI CHEMICAL GROUP Co Ltd
Current assignee: DONGYING HUATAI CHEMICAL GROUP Co Ltd
Priority date: 2012-02-09
Filing date: 2012-02-09
Publication date: 2012-09-26
Anticipated expiration: 2022-02-09

Abstract

The utility model provides a chemical engineering leakage-free corrosion resisting centrifugal pump. The centrifugal pump which is simple in structure and low in cost comprises a pump body (1), an impeller (3), a pump cover (4), a polyethylene composite layer (2), an anti-rotating sleeve (5) and a shaft (6), one end of the pump body (1) is provided with an opening, the other end of the pump body (1) is tightly compressed by the pump cover (4), an inner cavity of the pump body (1) and the impeller (3) are both uniformly coated by the polyethylene composite layer (2), a threaded hole which is arranged at the center of the impeller (3) is matched with top end threads of the shaft (6), the top end of the shaft (6) is screwed in the impeller (3), the anti-rotating sleeve (5) is added at the connecting position of the top end of the shaft (6) and the impeller (3), and thereby the impeller (3) can be prevented from following to rotate during operation, and the service life of the pump is greatly prolonged. By means of the addition of the polyethylene composite layer (2), anti-leaking performance and corrosion resistance of the pump body are remarkably improved.

Description

Chemical industry does not have the leakage corrosion resisting centrifugal pump

Technical field

The utility model relates to a kind of chemical plant centrifugal pump, and especially a kind of chemical industry does not have the leakage corrosion resisting centrifugal pump.

Background technique

The centrifugal pump of chemical plant use at present; When corrosive liquids such as long-term delivery high concentration strong acid, highly basic, very easily cause internals to be corroded, so working life is not long; Occur repeatedly because of centrifugal pump damages the thing that stops production of stopping, cause enormous economic loss to factory.

Summary of the invention

The purpose of the utility model is exactly the defective that exists to existing technology, provides a kind of chemical industry simple in structure, with low cost, that using effect is good not have the leakage corrosion resisting centrifugal pump.It comprises the pump housing, impeller, pump cover, polyethylene composite bed, anti-pivoted housing and axle; At an end opening of the pump housing, the other end uses pump cover to compress, and prevents that the liquid that is transported from spilling; On the inner chamber of the pump housing and impeller, all covered the layer of polyethylene composite bed uniformly; The top screw thread that impeller central authorities have tapped hole and axle matches, and the top of axle is screwed in the impeller, and increase by one on the top of axle with the impeller joint and prevent pivoted housing; Thereby guaranteed that impeller can transfer in when motion; Prolonged the working life of pump greatly,, made the anti-leak of the pump housing, corrosion resistance obtain large increase owing on the inner chamber of the pump housing and impeller, all covered the layer of polyethylene composite bed uniformly.

Description of drawings

Accompanying drawing is the structural representation of the utility model

Embodiment

As shown in the figure; Chemical industry does not have the corrosion resisting centrifugal pump of leakage and comprises the pump housing 1, impeller 3, pump cover 4, polyethylene composite bed 2, anti-pivoted housing 5 and axle 6, and at an end opening of the pump housing 1, the other end uses pump cover 4 to compress; On the inner chamber of the pump housing 1 and impeller 3, all covered layer of polyethylene composite bed 2 uniformly; Impeller 3 central authorities have tapped hole and match with axle 6 top screw thread, the top of axle 6 is screwed in the impeller 3, and increase by one on the top of axle 6 with impeller 3 joints and prevent pivoted housing 5.Owing on the inner chamber of the pump housing 1 and impeller 3, all covered layer of polyethylene composite bed 2 uniformly, make strong acid, highly basic liquid when the inner chamber of the pump housing 1, not constitute influence to it, protected the pump housing 1 inner chamber and impeller 3 not to be corroded effectively.In order to improve the steadiness of axle 6 and impeller 3, employing is threaded, and does not use nut to fix, and has guaranteed impeller 3 when high-speed motion, and what engage with axle 6 is tighter.

Claims

1. chemical industry does not have the leakage corrosion resisting centrifugal pump; Comprise the pump housing (1), impeller (3), pump cover (4); It is characterized in that: also comprise polyethylene composite bed (2), anti-pivoted housing (5) and axle (6), at an end opening of the pump housing (1), the other end uses pump cover (4) to compress; On the inner chamber of the pump housing (1) and impeller (3), all covered layer of polyethylene composite bed (2) uniformly; The top screw thread that impeller (3) central authorities have tapped hole and axle (6) matches, and the top of axle (6) is screwed in the impeller (3), and increase by one on the top of axle (6) with impeller (3) joint and prevent pivoted housing (5).