CN202176544U - Energy saving type impeller of water ring vacuum pump with large discharge capacity - Google Patents

Abstract

The utility model discloses an energy saving type impeller of a water ring vacuum pump with large discharge capacity, which belongs to a blade type fluid machine. The utility model adopts the technical scheme that the impeller comprises blades, an impeller shaft and blade fixing ribs; the blades are uniformly and fixedly arranged around the impeller shaft, the blade fixing ribs are arranged in the middle of the blades, the impeller shaft is in a shape of a spindle-shaped ring with the large central diameter and the small diameter of the two sides, and the impeller shaft is arranged on a shaft of a water ring vacuum pump body. The impeller is characterized in that the ratio of the curve radius of the blades and the parameter of the impeller is that: Phi represents the outer circle diameter of the impeller, and Phi1 represents the diameter of a circle in which the circle center of the blades with the curve radius R2 is located. Through the optimal design, the efficiency is improved.

Description

Energy-saving big discharge capacity water ring vacuum pump vane

Technical field

Energy-saving big discharge capacity water ring vacuum pump vane belongs to blade fluid machinery.

Background technique

Though water ring vaccum pump manufacturing enterprise is more both at home and abroad at present, technical merit is generally lower, and this mainly shows: specification is less, can not adapt to needs large-scale, super-huge vacuum system.The maximum at present discharge capacity specification of China is 600m ³/ min, according to update, external maximum also is 600m ³/ min.And industries such as China is metallurgical, chemical industry, papermaking, colliery are badly in need of 800---1000m ³The water ring vaccum pump of the super-large displacement of/min.Because of the profile of impeller vane design does not reach optimum, causes pump discharge capacity efficient is lower again.

The model utility content

The technical problem that model utility will solve is: provide a kind of design efficiency high, energy-conservation, the discharge capacity specification is at 800----1000m ³More than/the min, can satisfy the energy-saving big discharge capacity water ring vacuum pump vane of the demand of industries such as metallurgy, chemical industry, papermaking, colliery.

The utility model solves the technological scheme that its technical problem adopted: energy-saving big discharge capacity water ring vacuum pump vane comprises: blade, impeller shaft, vanes fixed muscle; The even distribution rings of blade fixedly installs around impeller shaft, and the vanes fixed muscle is arranged at the neutral position of blade, impeller shaft be shaped as the shuttle shape annulus that mid-diameter is big, the both sides diameter is little, impeller shaft is installed on the axle of the water ring vaccum pump pump housing,

Wherein: the proportionate relationship of vane curvature radius and impeller parameters does

$\frac{{\mathrm{\φ}}_1}{\mathrm{\φ}}=0.818~0.830,$ $\frac{{2R}_2}{\mathrm{\φ}}=0.710~0.820,$

Wherein: φ is the outside diameter of impeller, φ ₁Be the vane curvature radius R ₂Centre point place diameter of a circle.

The outside diameter of said impeller is 1585 millimeters to 1615 millimeters.

The length of said blade is 2190 millimeters to 2290 millimeters.

In a kind of preferred technique scheme, the outside diameter of said impeller is 1994 millimeters to 2024 millimeters.The length of said blade is 1950 millimeters to 2050 millimeters.

In a kind of in addition technological scheme, the outside diameter of said impeller is 2798 millimeters to 2895 millimeters.The length of said blade is 2015 millimeters to 2045 millimeters.

In order to obtain better effect, in above technological scheme, two end ring Zhou Zengshe vanes fixed muscle of said blade.

Working principle is: utilize the eccentric rotation that is installed in the impeller in the pump case; The linear velocity of line sheet end is 18-21m/s; The centrifugal force of this generation makes working solution--and-water is close to inner walls and is formed water ring, thereby at the cavity that the root of impeller blade changes, reaches purpose air-breathing, exhaust.

The radial force of vacuum pump acts on the axle through the impeller two ends, works a little near the radial bearing of both sides, and the gap of moving about is little, stable performance during running.

Compared with prior art; The beneficial effect that the energy-saving big discharge capacity water ring vacuum pump vane of the utility model is had is: utilize the optimal design theory that these factors that influence pump efficiency of the firm ratio of external diameter, width, the number of blade, vane thickness, the wheel of impeller, throw of eccentric equidimension parameter and revolution speed have been carried out optimal design; Increased the area of exhaust port; Improve sealing effect, reduced exhaust resistance, reached the purpose of raising the efficiency.

Description of drawings

Fig. 1 is that a kind of embodiment's of the utility model impeller master looks cross-sectional view,

Fig. 2 is that cross-sectional view is looked on the utility model embodiment's an impeller left side,

Wherein, 1, blade, 2, impeller shaft, 3, pump shaft, 4, vanes fixed muscle.

Embodiment

Embodiment to the utility model is described further below in conjunction with accompanying drawing:

Embodiment one: like Fig. 1, Fig. 2.Energy-saving big discharge capacity water ring vacuum pump vane comprises: blade 1, impeller shaft 2, vanes fixed muscle 4; Blade 1 even distribution rings fixedly installs around impeller shaft 2; Vanes fixed muscle 4 is arranged at the neutral position of blade 1; Impeller shaft 2 be shaped as the shuttle shape annulus that mid-diameter is big, the both sides diameter is little, impeller shaft 2 is installed on the water ring vaccum pump pump shaft 3, the proportionate relationship of vane curvature radius and impeller parameters does

$\frac{{\mathrm{\φ}}_1}{\mathrm{\φ}}=0.818~0.830,$ $\frac{{2R}_2}{\mathrm{\φ}}=0.710~0.820,$

Wherein: φ is the outside diameter of impeller, φ ₁Be the vane curvature radius R ₂Centre point place diameter of a circle.

The outside diameter of said impeller is 1585 millimeters to 1615 millimeters.

The length of said blade 1 is 2190 millimeters to 2290 millimeters.

Among the embodiment two, other are identical with above embodiment, and different is that the outside diameter of said impeller is 1994 millimeters to 2024 millimeters.The length of said blade 1 is 1950 millimeters to 2050 millimeters.

Among the embodiment two, other are identical with embodiment one, and different is that the outside diameter of said impeller is 2798 millimeters to 2895 millimeters.The length of said blade 1 is 2015 millimeters to 2045 millimeters.

In order to obtain better effect, in above various embodiments, two end ring Zhou Zengshe vanes fixed muscle 4 of said blade 1.

Although illustrated and described preferred implementation of the present invention, it will be apparent to those skilled in the art that and under the situation of the scope that does not break away from this patent, much to change and to revise.Therefore appended claim is intended to contain all these change that falls into practicalness of the present invention and scope and modifications.

Claims (8)

1. energy-saving big discharge capacity water ring vacuum pump vane comprises: blade, impeller shaft, vanes fixed muscle; The even distribution rings of blade fixedly installs around impeller shaft, and the vanes fixed muscle is arranged at the neutral position of blade, impeller shaft be shaped as the shuttle shape annulus that mid-diameter is big, the both sides diameter is little, impeller shaft is installed on the axle of the water ring vaccum pump pump housing,

It is characterized in that: the proportionate relationship of vane curvature radius and impeller parameters does

Wherein: φ is the outside diameter of impeller, φ ₁Be the vane curvature radius R ₂Centre point place diameter of a circle.

2. energy-saving big discharge capacity water ring vacuum pump vane according to claim 1 is characterized in that: the outside diameter of said impeller is 1585 millimeters to 1615 millimeters.

3. energy-saving big discharge capacity water ring vacuum pump vane according to claim 2 is characterized in that: the length of said blade is 2190 millimeters to 2290 millimeters.

4. energy-saving big discharge capacity water ring vacuum pump vane according to claim 1 is characterized in that: the outside diameter of said impeller is 1994 millimeters to 2024 millimeters.

5. energy-saving big discharge capacity water ring vacuum pump vane according to claim 4 is characterized in that: the length of said blade is 1950 millimeters to 2050 millimeters.

6. energy-saving big discharge capacity water ring vacuum pump vane according to claim 1 is characterized in that: the outside diameter of said impeller is 2798 millimeters to 2895 millimeters.

7. energy-saving big discharge capacity water ring vacuum pump vane according to claim 6 is characterized in that: the length of said blade is 2015 millimeters to 2045 millimeters.

8. energy-saving big discharge capacity water ring vacuum pump vane according to claim 1 is characterized in that: two end ring Zhou Zengshe vanes fixed muscle of said blade.

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