CN201391462Y

CN201391462Y - Desulphurization circulating pump

Info

Publication number: CN201391462Y
Application number: CN200920149443U
Authority: CN
Inventors: 秦苏宏; 王道红
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-15
Filing date: 2009-04-15
Publication date: 2010-01-27
Anticipated expiration: 2019-04-15

Abstract

The utility model discloses a desulphurization circulating pump, which comprises a front cover, an impeller, a pump body, a pump shaft, a pump cover, a bearing box body and a bearing bracket, wherein the two ends of the pump body are respectively fixed on the front cover and the bearing bracket; one end of the pump shaft is fixed on the bearing box body; the pump cover is fixed on the bearing bracket; a mechanical seal is arranged between the pump cover and the pump shaft; the bearing box body is fixed in the bearing bracket through an adjusting bolt; and a front guard board is fixed on the front cover. On one hand, the gap between the impeller and the pump cover is adjusted by adjusting the position between the bearing box body and the bearing bracket, so that the transmission of the pump keeps the optimum state all the time, and the maintenance frequency of the pump is reduced, and on the other hand, the pump cover and the front guard board are made of abrasive resistant materials, so that the friction of the front cover and the pump cover due to high-speed medium transmission can be overcome, the abrasive resistance is improved, and the service lives of the front cover and the pump cover are prolonged, and at the same time, the problem that the front cover and the pump cover are corroded by chloride ions is solved. The pump can be widely applicable to occasions needing transporting slurry by the ammonia method or the limestone-gypsum wet desulfurization method.

Description

Desulfuration recycle pump

Technical field:

The utility model relates to a kind of pump, relates in particular to be used for the recycle pump that ammonia process or limestone-gypsum desulfurized method are carried with loop slurry.

Background technique:

As purifying coal-burning power plant's tail gas, absorb sulfur dioxide, reducing sulfur method--ammonia process or limestone---gypsum wet type desulfurizing method that pollution of atmosphere is most widely used, need the desulfuration recycle pump of defeated slurries.Now be applied to the desulfuration recycle pump of this tooling, axially mechanical seal short, well damage in working life, and impeller increases the gap between impeller and the pump cover easily by chloride ion corrosion and wearing and tearing, has influenced the transfer efficiency of pump greatly; The rubber lined pump that is widely adopted (metal shell, elastometric lining), in use, often occur that liner is torn, phenomenons such as the distortion of glue spare, block rubber come off, liner scuffing, have a strong impact on the normal use of device, and the maintenance of rubber lined pump need dismantle the import and export pipeline, and is very inconvenient.

The model utility content:

The purpose of this utility model just provides a kind of desulfuration recycle pump of new structure, on the one hand by regulating the position between bearing housing and the bearing bracket, adjust the gap between impeller and the pump cover, make the conveying of pump be in the optimum state all the time, reduce the maintenance frequency of pump; The protecgulum of pump overcurrent part is provided with the apron plate made by high-abrasive material and makes pump cover by high-abrasive material on the other hand, use metallic material such as two-phase stainless white iron, when solving the burn into media flow of chlorion to the wearing and tearing of protecgulum and rubber lined pump often occur that liner is torn, the distortion of glue spare, block rubber come off, problems such as liner scratches, maintenance difficult.

The purpose of this utility model is achieved in that a kind of desulfuration recycle pump, comprise protecgulum, impeller, the pump housing, pump shaft, pump cover, bearing housing and bearing bracket, described pump housing two ends are separately fixed on described protecgulum and the bearing bracket, described pump shaft one end is fixed on the described bearing housing, its the other end is fixed with impeller, on described bearing bracket, be fixed with pump cover, between described pump cover and pump shaft, be provided with mechanical seal, described impeller is in described protecgulum, in the cavity that the pump housing and pump cover surround, it is characterized in that: described bearing housing is bolted in the described bearing bracket by adjusting.

Described protecgulum is fixed with high-abrasive material and makes apron plate.

Described pump cover adopts high-abrasive material to make.

The utility model compared with prior art has following advantage:

1. bearing housing is bolted in the bearing bracket by adjusting, by regulating the effect of bolt, regulate the position between bearing housing and the bearing bracket, reach the purpose of adjusting gap between impeller and the pump cover, make the conveying of pump be in the optimum state all the time, reduce the maintenance frequency of pump.

2. because the pump cover and the apron plate that adopt high-abrasive material to make, can overcome like this and carry of the friction of high speed medium in the pump using process protecgulum and pump cover, the wear resistance and the working life of protecgulum and pump cover have been improved, solve the problem of chlorion simultaneously, the working life of further improving protecgulum and pump cover to protecgulum and pump cover corrosion.

Description of drawings:

Fig. 1 is the structural representation of desulfuration recycle pump described in the utility model

1. protecgulum 2. apron plates 3. pump housings 4. impellers 5. pump covers 6. pump shafts 7. mechanical seals 8. bearing bracket 9. bearing housings 10. are regulated bolt

Embodiment:

As can be seen from Figure 1, a kind of desulfuration recycle pump, comprise protecgulum 1, impeller 4, the pump housing 3, pump shaft 6, pump cover 5, bearing housing 9 and bearing bracket 8, the described pump housing 3 two ends are separately fixed on described protecgulum 1 and the bearing bracket 8, described pump shaft 6 one ends are fixed on the described bearing housing 9, its the other end is fixed with impeller 4, on described bearing bracket 8, be fixed with pump cover 5, between described pump cover 5 and pump shaft 6, be provided with mechanical seal 7, described impeller 4 is in described protecgulum 1, in the cavity that the pump housing 3 and pump cover 5 surround, described bearing housing 9 is fixed in the described bearing bracket 8 by regulating bolt 10, described bearing housing 9 can move axially with respect to described bearing bracket 8, reaches the purpose of adjusting gap between impeller 4 and the pump cover 5; Be fixed with apron plate 2 on described protecgulum 1, described apron plate 2 and pump cover 5 are made by high-abrasive material.

Claims

1. desulfuration recycle pump, comprise protecgulum (1), impeller (4), the pump housing (3), pump shaft (6), pump cover (5), bearing housing (9) and bearing bracket (8), the described pump housing (3) two ends are separately fixed on described protecgulum (1) and the bearing bracket (8), described pump shaft (6) one ends are fixed on the described bearing housing (9), its the other end is fixed with impeller (4), on described bearing bracket (8), be fixed with pump cover (5), between described pump cover (5) and pump shaft (6), be provided with mechanical seal (7), described impeller (4) is in described protecgulum (1), in the cavity that the pump housing (3) and pump cover (5) surround, it is characterized in that: described bearing housing (9) is fixed in the described bearing bracket (8) by regulating bolt (10).

2. a kind of desulfuration recycle pump according to claim 1 is characterized in that: be fixed with apron plate (2) on described protecgulum (1).