CN202560649U - Cabinet centrifugal fan volute tongue - Google Patents

Abstract

The utility model discloses a cabinet centrifugal fan volute tongue. The cabinet centrifugal fan volute tongue is characterized by comprising an air outlet and an impeller. The impeller is mounted in a box, and the volute tongue which is rectangular is fixed on the box. The volute tongue is fixed on the air outlet through bolt or is welded thereon, and a half area of the impeller is right shielded by the volute tongue with a proper height. Due to the fact that the volute tongue is fixed on the box, the volute tongue is designed to be rectangular and is fixed or on the air outlet through the bolts or welded thereon, the half area of the impeller is right shielded by the volute tongue with the proper height, and the cabinet centrifugal fan volute tongue can achieve the effects of reducing air-out resistance, improving air-out efficiency and saving energy as compared with conventional equipment.

Description

Cabinet type centrifugal blower snail tongue

Technical field

The utility model relates to centrifugal blower architecture advances technical field, a kind of cabinet type centrifugal blower snail tongue that reduces wind resistance, raising air-out efficient, the saving energy of saying so more specifically.

Background technique

The ventilator exhaust outlet that uses at present generally is not provided with baffle plate, and this makes that when air-out, to go out wind resistance big, directly air-out simultaneously, and suction force is also strong inadequately, has reduced air-out efficient, greatly consumes energy.

Summary of the invention

To the problems referred to above, the problem that the utility model quasi-solution is determined provides a kind of cabinet type centrifugal blower snail tongue that reduces wind resistance, raising air-out efficient, the saving energy.

For achieving the above object, the utility model adopts following technological scheme: cabinet type centrifugal blower snail tongue, it is characterized in that it comprises exhaust outlet, impeller, and said impeller is installed in the casing, is fixed with the snail tongue on the said casing, and said snail tongue becomes rectangular shape.Be connected with the snail tongue through bolt or the fixing mode of welding on the said exhaust outlet, the height of said snail tongue just in time blocks the half the area of impeller.

Adopted the cabinet type centrifugal blower snail tongue of the utility model; Owing on casing, be fixed with the snail tongue; Simultaneously the snail tongue is designed to rectangular shape and is connected exhaust outlet through bolt or the fixing mode of welding; The height of snail tongue just in time blocks the half the area of impeller, compares with legacy equipment to reach the effect that reduces wind resistance, improves air-out efficient, saves the energy.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among the figure: 1-exhaust outlet, 2-impeller, 3-casing, 4-snail tongue.

Embodiment

As shown in Figure 1, the utility model discloses a kind of cabinet type centrifugal blower snail tongue, it is characterized in that; It comprisesexhaust outlet 1,impeller 2, and saidimpeller 2 is installed in thecasing 3, is fixed withsnail tongue 4 on the saidcasing 3; Be connected withsnail tongue 4 through bolt or the fixing mode of welding on the saidexhaust outlet 1, the height of saidsnail tongue 4 just in time blocks the half the area ofimpeller 2, such design; Because the existence ofcuboid snail tongue 4 makes out wind resistance reduce, improved air output on the one hand; 4 one-tenth rectangular shapes of said snail tongue also can be designed to triangle or changeable shape simultaneously, and the effect that plays is the same; Can reduce the wind resistance that ofexhaust outlet 1, improve air-out efficient, save energy consumption.

Claims (3)

1. cabinet type centrifugal blower snail tongue is characterized in that, it comprises exhaust outlet (1), impeller (2), and said impeller (2) is installed in the casing (3), is fixed with snail tongue (4) on the said casing (3), and said snail tongue (4) becomes rectangular shape.

2. cabinet type centrifugal blower snail tongue according to claim 1 is characterized in that, said exhaust outlet (1) is gone up through bolt or the fixing mode of welding and is connected with snail tongue (4).

3. cabinet type centrifugal blower snail tongue according to claim 1 is characterized in that, the height of said snail tongue (4) just in time blocks the half the area of impeller (2).

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