阅读说明：本技术 一种用于湿法脱硫器的离心风机 (Centrifugal fan for wet desulphurization device ) 是由 王智勇 魏海霞 江榧 陈锡东 于 2019-09-26 设计创作，主要内容包括：本发明公开了一种用于湿法脱硫器的离心风机,包含叶轮,电机通过轴承连接在叶轮中心,叶轮外部设置第一外壳,第一外壳上端口位置通过连杆与第二外壳上端口焊接,第二外壳两侧连接支架,支架连接在底座上；所述第二外壳底部设置有储液槽,在所述储液槽下端设置有可拆卸密封件。所述用于湿法脱硫器的离心风机具有结构简单、使用便捷、可改善离心风机抗腐蚀性能,延长使用寿命；还能将冷凝的碱液返回脱硫塔中,减少碱液浪费。(The invention discloses a centrifugal fan for a wet desulfurizer, which comprises an impeller, wherein a motor is connected to the center of the impeller through a bearing, a first shell is arranged outside the impeller, the upper port of the first shell is welded with the upper port of a second shell through a connecting rod, two sides of the second shell are connected with brackets, and the brackets are connected to a base; and a liquid storage tank is arranged at the bottom of the second shell, and a detachable sealing piece is arranged at the lower end of the liquid storage tank. The centrifugal fan for the wet desulfurizer has the advantages of simple structure, convenience in use, improvement of corrosion resistance of the centrifugal fan and prolongation of service life; and the condensed alkali liquor can be returned to the desulfurizing tower, so that the waste of the alkali liquor is reduced.)

1. A centrifugal fan for a wet desulfurizer is characterized by comprising an impeller, a motor is connected to the center of the impeller through a bearing, a first shell is arranged outside the impeller, the first shell is nested in a second shell and is welded with an upper port of the first shell and an upper port of the second shell through at least two connecting rods, brackets are connected to two sides of the second shell, and the brackets are connected to a base; and a liquid storage tank is arranged at the bottom of the second shell, and a detachable sealing piece is arranged at the lower end of the liquid storage tank.

2. The centrifugal fan for a wet desulfurizer according to claim 1, wherein at least five through holes are provided at positions corresponding to the first casing bottom portion and the second casing bottom portion reservoir.

3. The centrifugal fan for a wet desulfurizer as set forth in claim 2, wherein an atomizer is attached to a lower end of the detachable seal at a lower end of the reservoir.

4. The centrifugal fan for a wet desulfurizer as claimed in claim 3, wherein the first casing, the second casing and the bearing are made of stainless steel or carbon steel coated with a waterproof and anticorrosive coating.

5. The centrifugal fan for a wet desulfurizer according to claim 4, wherein the impeller is made of one of stainless steel, engineering plastic or carbon steel coated with a waterproof and anticorrosive coating.

6. The centrifugal fan for a wet desulfurizer according to claim 5, wherein the connecting rod is a stainless steel connecting rod.

7. The centrifugal fan for a wet desulfurizer according to claim 6, wherein a groove is provided in the base, and noise reduction cotton is provided in the groove.

8. The centrifugal fan for a wet desulfurizer according to claim 7, wherein a rubber pad is provided at a lower end of the base.

Technical Field

The invention relates to the technical field of centrifugal fans, in particular to a centrifugal fan for a wet-process desulfurizer.

Background

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the characteristics of simple structure, convenience in use and capability of improving the corrosion resistance of the centrifugal fan.

In order to achieve the purpose, the technical scheme of the invention is to design a centrifugal fan for a wet desulphurization device, the centrifugal fan comprises an impeller, a motor is connected to the center of the impeller through a bearing, a first shell is arranged outside the impeller, the first shell is nested in a second shell, the upper port of the first shell is welded with the upper port of the second shell through at least two connecting rods, two sides of the second shell are connected with brackets, and the brackets are connected to a base; and a liquid storage tank is arranged at the bottom of the second shell, and a detachable sealing piece is arranged at the lower end of the liquid storage tank.

In order to communicate the first casing with the second casing, it is preferable that at least five through holes are formed at the bottom of the first casing and at positions corresponding to the reservoir at the bottom of the second casing.

In order to atomize the liquid in the liquid storage tank into water vapor and return the water vapor to the desulfurization tower through the centrifugal force of the impeller, the preferable technical scheme is that the lower end of the detachable sealing piece at the lower end of the liquid storage tank is connected with an atomizer.

In order to improve the corrosion resistance of the centrifugal fan assembly, the preferable technical scheme is that the first shell, the second shell and the bearing are made of stainless steel or carbon steel with a waterproof and anticorrosive coating coated on the surface layer.

In order to improve the corrosion resistance of the impeller, the preferable technical scheme is that the impeller is made of one of stainless steel, engineering plastics or carbon steel with a waterproof and anticorrosive coating coated on the surface layer.

In order to improve the corrosion resistance of the connecting rod, the connecting rod is preferably made of stainless steel.

In order to reduce the noise of the centrifugal fan, the preferable technical scheme is that a groove is arranged on the base, and silencing cotton is arranged in the groove.

In order to reduce the vibration of the centrifugal fan and the atomizer during working, the preferable technical scheme is that a rubber pad is arranged at the lower end of the base.

When the condensed water formed on the inner wall of the pipeline flows downwards, the condensed water can flow to the liquid storage tank at the bottom of the second shell through the inner wall of the second shell, the condensed water is prevented from directly flowing into the first shell, the amount of the condensed water in the first shell can be reduced, and the corrosion to the centrifugal fan assembly is reduced. The detachable sealing element at the lower end of the liquid storage tank is opened and connected with the atomizer, so that the liquid in the liquid storage tank is vaporized again and returns to the desulfurizing tower under the centrifugal force action of the impeller, the alkali liquor can be recycled, and waste is avoided.

The invention has the advantages and beneficial effects that: the centrifugal fan for the wet desulfurizer has the advantages of simple structure, convenience and quickness in use, improvement of corrosion resistance of the centrifugal fan and prolongation of service life. And the condensed alkali liquor can be returned to the desulfurizing tower, so that the waste of the alkali liquor is reduced.

Drawings

FIG. 1 is a schematic sectional view of a centrifugal fan for a wet desulfurizer of the present invention;

FIG. 2 is a schematic view of ports on the first and second housings;

Fig. 3 is a perspective view of the bottom of the first housing.

In the figure: 1. an impeller; 2. a bearing; 3. a first housing; 4. a second housing; 5. a support; 6. a base; 7. a liquid storage tank; 8. a removable seal; 9. an atomizer; 10. a connecting rod; 11. a through hole; 12. silencing cotton; 13. and (7) a rubber pad.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

as shown in fig. 1 to 3, the invention is a centrifugal fan for a wet desulfurizer, the centrifugal fan comprises an impeller 1, a motor is connected to the center of the impeller through a bearing 2, a first shell 3 is arranged outside the impeller, the first shell 3 is nested in a second shell 4, and an upper port of the first shell 3 is welded with an upper port of the second shell 4 through four stainless steel connecting rods 10. Two sides of the second shell 4 are connected with the brackets 5, the brackets 5 are connected with the base 6, the upper end of the base 6 is provided with a groove, and the groove is internally provided with silencing cotton 12; a rubber pad 13 is arranged at the lower end of the base 6.

a liquid storage tank 7 is arranged at the bottom of the second shell 4, and a detachable sealing piece 8 is arranged at the lower end of the liquid storage tank 7. Five through holes 11 are arranged at the bottom of the first shell 3 and corresponding to the liquid storage tank 7. An atomizer 9 is attached to the lower end of the reservoir 7 at the location of a removable seal 8. The impeller 1, the bearing 2, the first shell 3 and the second shell 4 are all made of stainless steel.

When the condensed water formed on the inner wall of the pipeline flows downwards, the condensed water can flow to the liquid storage tank 7 at the bottom of the second shell 4 through the inner wall of the second shell 4, the condensed water is prevented from directly flowing to the first shell 3 through the inner wall of the pipeline, the amount of the condensed water in the first shell 3 can be reduced, and the corrosion to the centrifugal fan assembly is reduced. The detachable sealing part 8 at the lower end of the liquid storage tank 7 is opened and is connected with the atomizer 9, so that the liquid in the liquid storage tank 7 is vaporized again and returns to the desulfurizing tower under the action of centrifugal force of the impeller 1, and on one hand, the corrosion of alkali liquor to the liquid storage tank 7 can be reduced; on the other hand, the alkali liquor can be recycled, and no waste is caused.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.