CN201818527U

CN201818527U - Series low-flow high-pressure-head centrifugal blower

Info

Publication number: CN201818527U
Application number: CN2010205464601U
Authority: CN
Inventors: 王永茂; 刘杰; 李忠; 孙家玮
Original assignee: XI'AN CASVENT BLOWER CO Ltd
Current assignee: XI'AN CASVENT BLOWER CO Ltd
Priority date: 2010-09-27
Filing date: 2010-09-27
Publication date: 2011-05-04
Anticipated expiration: 2020-09-27

Abstract

A series low-flow high-pressure-head centrifugal blower comprises a motor, a volute and an impeller. The volute includes two casings arranged side by side, the two casings are blower casings which are identical in specification and opposite in rotation direction, the motor is arranged between the two casings, two ends of a spindle of the motor respectively extend into the two casings, one casing is provided with an air outlet, the other casing is provided with an air inlet, and the two casings are communicated via a pipeline. The centrifugal blower not only has the high pressure head, but is simple in manufacturing and low in cost.

Description

A kind of tandem small flow high-head centrifugal blower

Technical field

The utility model belongs to machinery manufacturing technology field, relates to a kind of centrifugal blower, is specifically related to a kind of tandem small flow high-head centrifugal blower.

Background technique

Present centrifugal blower has forms such as multistage and single-stage, multistage pressure head height, but manufacturing technology complexity, cost height; The single-stage manufacturing technology is simple, and cost is low, but pressure head is not high, has limited using scope.

Summary of the invention

In order to overcome above-mentioned problems of the prior art, the purpose of this utility model provides a kind of tandem small flow high-head centrifugal blower, not only has high-head, and makes simply, and cost is low.

For achieving the above object, the technological scheme that the utility model adopted is, a kind of tandem small flow high-head centrifugal blower comprises motor, spiral case and impeller, and spiral case is two casings that are arranged side by side, these two casings adopt the opposite blower casing of the identical rotation direction of specification, be provided with motor between two casings, the two ends of this electric machine main shaft are stretched into respectively in two casings, and a casing is provided with exhaust outlet 1, another casing is provided with intake grill 8, and these two casings communicate by pipeline 9.

The blower casing is the single-stage blower casing.

The utility model centrifugal blower adopts two opposite casings of rotation direction, is installed on the suitable impeller of casing respectively in these two casings, makes single-stage blower can produce the high-head of multistage blowers, and makes simply, and cost is low.

Description of drawings

Accompanying drawing is the structural representation of the utility model centrifugal blower.

Among the figure, 1. exhaust outlet, 2. first casing, 3. first impeller, 4. motor, 5. terminal box, 6. second casing, 7. second impeller, 8. intake grill, 9. pipeline, 10. pedestal.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

As shown in drawings, the structure of the utility model centrifugal blower, comprise pedestal 10, first casing 2 and second casing 6 are installed on the pedestal 1 side by side, be provided with motor 4 between first casing 2 and second casing 6, motor 4 is affixed with first casing 2 and second casing 6 respectively, motor 4 is provided with terminal box 5, the two ends of motor 4 main shafts are stretched into respectively in first casing 2 and second casing 6, and the two ends of this main shaft are separately installed with first impeller 3 and second impeller 7, first impeller 3 is positioned at first casing, 2, the second impellers 7 and is positioned at second casing 6.

The top of first casing 2 is provided with exhaust outlet 1, the sidewall of first casing 2 is provided with through hole, the sidewall of second casing 6 is provided with intake grill 8, the bottom of second casing 6 is provided with the pipeline 9 that communicates with the second casing inside, and pipeline 9 communicates with first casing, 2 inside by the through hole on first casing, 2 sidewalls.

First casing 2 and second casing 6 adopt the single-stage blower casing of same size, but the rotation direction of two casings is opposite.

With power supply thereto 5, power turn-on, the main axis rotation of motor 4, and drive first impeller 3 and second impeller 7 rotates, second impeller 7 is in rotation process, air is sucked in second casing 6 from intake grill 8, the air that enters second casing 6 enters in first casing 2 by pipeline 9, because the rotation direction of first casing 2 and second casing 6 is opposite, first impeller 3 is in rotation process, air in first casing 2 is sent exhaust outlet 1, make air obtain twice pressurization 1 process of flowing from intake grill 8 to exhaust outlet, realized the air blast of small flow high-head.

Problems such as the utility model centrifugal blower has solved the cost height that exists in the prior art under the prerequisite of guaranteed performance, technical difficulty is big.

Claims

1. tandem small flow high-head centrifugal blower, comprise motor, spiral case and impeller, it is characterized in that, described spiral case is two casings that are arranged side by side, and these two casings adopt the opposite blower casing of the identical rotation direction of specification, are provided with motor between two casings, the two ends of this electric machine main shaft are stretched into respectively in two casings, a casing is provided with exhaust outlet (1), and another casing is provided with intake grill (8), and these two casings communicate by pipeline (9).

2. centrifugal blower according to claim 1 is characterized in that, described blower casing is the single-stage blower casing.