CN2308742Y

CN2308742Y - Ti welded centrifugal pump

Info

Publication number: CN2308742Y
Application number: CN 97221682
Authority: CN
Inventors: 吴炅寿; 杨德中
Original assignee: ZHONGXING TITANIUM EQUIPMENT F
Current assignee: ZHONGXING TITANIUM EQUIPMENT F
Priority date: 1997-07-21
Filing date: 1997-07-21
Publication date: 1999-02-24
Anticipated expiration: 2007-07-21

Abstract

The utility model relates to a ti welded centrifugal pump, in which a volute chamber of the pump body is of split type and is formed by welding of a diffusion tube and a front and a rear half portions formed by punch forming, and an impeller is also of split type and is formed by welding of a suction inlet, a nave, a front and a rear end plates formed by punch forming and a blade. The utility model has the advantages of convenient manufacture, high pump efficiency and low cost.

Description

The titanium welded centrifugal pump

The utility model relates to a kind of centrifugal pump made from titanium and the welding of titanium alloy processing material.

In the prior art, overcurrent component such as the pump housing of titanium centrifugal pump, impeller, pump cover are cast form, metallographic structure is a cast structure, and intensity is lower and be subjected to minimum restriction of casting wall thickness, and materials consumption is more, and water passage surface is coarse, hydraulic loss is bigger, and pump efficiency reduces, and the melting of Ti metal, casting must be carried out in vacuum equipment, complex process, the cost height.

The purpose of this utility model provide a kind ofly be convenient to make, efficient is higher, cost reduces greatly titanium welded centrifugal pump.

The purpose of this utility model is achieved in that the titanium welded centrifugal pump, include impeller (2), axle and the pump housing, impeller (2) is located in the pump housing, its volute chamber of the described pump housing (1) is split, be welded by diffusing tube (5) with through the first half (3) and latter half of (4) three parts of drawing, described impeller also is split, is welded by suction inlet (6), wheel hub (7) with through front shroud (8), back shroud (9) and blade (10) five parts of drawing.

Compare with existing casting titanium pump, the utility model resolves into several parts with the volute chamber and the impeller of the pump housing, and taps into the row welding, does not need vacuum melting equipment, and cost reduces greatly, is convenient to manufacturing.Water passage surface is smooth, and hydraulic loss is little, the pump efficiency height; The pump housing of the present utility model and impeller all use titanium or titanium alloy processing material, intensity height, but wall thickness attenuate 1/3, and it can be widely used in the medium of carrying corrosivity stronger.

Be described in detail technical solution of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of titanium welding horizontal centrifugal pump.

Fig. 2 is the structural representation of volute chamber.

Fig. 3 is the sectional view of Fig. 2.

Fig. 4 is the structural representation of impeller.

Fig. 5 is the structural representation of titanium welding submersible pump.

As Fig. 1,2,3,4, the volute chamber 1 of the pump housing is divided into first half 3 and latter half of 4 from the centre, top is the diffusing tube 5 of split, and the first half 3 of volute chamber and latter half of 4 is butt-welded, and top is welded with diffusing tube 5 again, back shroud 9 places the shoulder rear portion, outer garden of wheel hub 7, in the welding of the both sides of its connecting part, blade 10 places the inboard of back shroud 9, and all blades weld respectively thereon, suction inlet 6 and front shroud 8 integrally welded being placed on the blade 10, the welding of the joining portion of blade and front shroud.

As Fig. 2, but the axle of described submersible pump is split, is divided into motor shaft 12 and pump shaft 13, and the two also is stained with binder with being threaded on the screw thread, and motor housing 11 and pump shaft 13 all are titanium matter.

Claims

1, a kind of titanium welded centrifugal pump, include impeller (2), axle and the pump housing, impeller (2) is located in the pump housing, it is characterized in that its volute chamber of the described pump housing (1) is split, be welded by diffusing tube (5) with through the first half (3) and latter half of (4) three parts of drawing, described impeller also is split, is welded by suction inlet (6), wheel hub (7) with through front shroud (8), back shroud (9) and blade (10) five parts of drawing.

2, titanium welded centrifugal pump according to claim 1, but it is characterized in that described axle is split, being divided into motor shaft (12) and pump shaft (13), the two also is stained with binder with being threaded on the screw thread.