CN211852251U

CN211852251U - High-pressure centrifugal fan

Info

Publication number: CN211852251U
Application number: CN202020428614.0U
Authority: CN
Inventors: 陈紫剑
Original assignee: Zhejiang Fauyun Blower Co ltd
Current assignee: TAIZHOU CHIYE ELECTROMECHANICAL Co.,Ltd.
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-11-03
Anticipated expiration: 2030-03-27

Abstract

The utility model provides a high-pressure centrifugal fan belongs to centrifugal fan technical field. It has solved the problem that current centrifugal fan life is low. This high-pressure centrifugal fan, including the base with set up the motor on the base, the spiral case, the impeller, the air intake, the air outlet, the impeller is located the spiral case, and outside the impeller shaft of this impeller stretches out the spiral case, the motor drives the impeller through control assembly and rotates, it is provided with the oil cooling seat to lie in between control assembly and the spiral case on the base, the impeller shaft of impeller stretches out outside the spiral case and stretches into and rotates by motor control in the oil cooling seat, set up the through-hole that supplies the impeller shaft to wear out on the spiral case, install the sealed lid that is used for sealing effect on the through-hole, prevent heat gas through sealed lid from discharging. The utility model discloses add sealed lid, prevent that the hot gas from directly impacting the cold seat of oil, improve holistic life.

Description

High-pressure centrifugal fan

Technical Field

The utility model belongs to the technical field of centrifugal fan, a centrifugal fan is related to, in particular to high-pressure centrifugal fan.

Background

The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. The existing centrifugal fan comprises a motor, a volute, an impeller, an air inlet, an air outlet and an oil cooling seat, wherein an impeller shaft of the impeller penetrates out of the volute and extends into the oil cooling seat, a through hole for the impeller shaft to penetrate out is formed in the volute, and the oil cooling seat is used for lubricating and cooling the impeller shaft of the impeller.

Disclosure of Invention

The utility model aims at providing a high-pressure centrifugal fan that life is high to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a high-pressure centrifugal fan, its characterized in that includes the base and sets up motor, spiral case, impeller, air intake, air outlet on the base, the impeller be located the spiral case, and the impeller shaft of this impeller stretch out outside the spiral case, the motor pass through control assembly and drive the impeller and rotate, the base on be located and be provided with the oil cooling seat between control assembly and the spiral case, the impeller shaft of impeller stretch out outside the spiral case and stretch into the oil cooling seat in by motor control rotation, the spiral case on set up the through-hole that supplies the impeller shaft to wear out, the through-hole on install the sealed lid that is used for the sealing effect, prevent heat gas through sealed lid from the through-hole department discharge.

In the high-pressure centrifugal fan, the sealing cover and the volute are respectively provided with a plurality of threaded holes which are uniformly distributed in the circumferential direction, and the sealing cover is arranged on the volute through the fixing bolt.

In the high-pressure centrifugal fan, the sealing cover comprises an inner bushing and an outer bushing, the middle of the inner bushing is provided with a central hole through which the impeller shaft penetrates, and the outer bushing is sleeved outside the inner bushing and seals the through hole of the volute.

In the high-pressure centrifugal fan, the control component is a synchronous pulley component.

In foretell high-pressure centrifugal fan, the base on be provided with the mount pad of power supply machine installation, mount pad and base between link to each other through set screw, mount pad and base between be provided with the guide arm, and set up the screw of a plurality of and set screw tight fit on this guide arm, the base on lie in the both sides of mount pad and equally divide and do not be provided with a plurality of locating lever, the tip of locating lever is equally divided and is do not leaned on the both sides portion in the mount pad.

Compared with the prior art, the sealing cover is arranged at the through hole of the volute, the heat gas generated by high-speed rotation of the impeller can not be discharged from the through hole, the direct impact of the heat gas on the oil cooling seat is prevented, and the service life of the oil cooling seat is prolonged.

Drawings

Fig. 1 is a schematic perspective view of the high-pressure centrifugal fan.

Fig. 2 is a schematic structural diagram of the sealing cover in the high-pressure centrifugal fan.

Fig. 3 is an enlarged schematic structural view of a portion a of fig. 1 in the high-pressure centrifugal fan.

In the figure, 1, a base; 2. a motor; 3. a volute; 4. an oil-cooled base; 5. a through hole; 6. a sealing cover; 7. a control component; 8. a threaded hole; 9. an inner liner; 10. an outer sealing sleeve; 11. a central bore; 12. a mounting seat; 13. a guide bar; 14. and (5) positioning the rod.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, fig. 2, and fig. 3, the high-pressure centrifugal fan includes a base 1 and a motor 2 disposed on the base 1, a volute 3, an impeller, an air inlet, and an air outlet, wherein the impeller is disposed in the volute 3, and an impeller shaft of the impeller extends out of the volute 3, the motor 2 drives the impeller to rotate through a control component 7, an oil cooling seat 4 is disposed between the control component 7 and the volute 3 on the base 1, the impeller shaft of the impeller extends out of the volute 3 and is controlled by the motor 2 to rotate in the oil cooling seat 4, a through hole 5 for the impeller shaft to penetrate out is disposed on the volute 3, a sealing cover 6 for sealing is disposed on the through hole 5, and the sealing cover 6 prevents the heat gas from being discharged from the through hole 5.

Preferably, the control unit 7 is a synchronous pulley unit.

In further detail, the sealing cover 6 and the volute 3 are respectively provided with a plurality of threaded holes 8 which are uniformly distributed in the circumferential direction, the sealing cover 6 is installed on the volute 3 through fixing bolts, the sealing cover 6 is composed of an inner bushing 9 and an outer bushing 10, a central hole 11 through which an impeller shaft penetrates is formed in the middle of the inner bushing 9, the outer bushing 10 is sleeved outside the inner bushing 9 and seals the through hole 5 of the volute 3, and the sealing effect is excellent.

Further saying, be provided with mount pad 12 of 2 installations of power supply machine on the base 1, link to each other through set screw between mount pad 12 and the base 1, be provided with guide arm 13 between mount pad 12 and the base 1, and set up the screw of a plurality of and set screw tight fit on this guide arm 13, the both sides that lie in mount pad 12 on the base 1 are equallyd divide and are do not be provided with a plurality of locating lever 14, the tip of locating lever 14 is equallyd divide and is do not supported the both sides portion that leans on in mount pad 12, mount pad 12 is for dismantling, through the position of the adjustable mount pad 12 of set screw, through set screw and corresponding screw close-fitting after the adjustment, reuse locating lever 14 supports the both sides portion that mount pad 12 and plays spacing effect.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A high-pressure centrifugal fan is characterized by comprising a base (1), a motor (2) arranged on the base (1), a volute (3), an impeller, an air inlet and an air outlet, wherein the impeller is positioned in the volute (3), and the impeller shaft of the impeller extends out of the volute (3), the motor (2) drives the impeller to rotate through the control component (7), an oil cooling seat (4) is arranged on the base (1) and between the control component (7) and the volute (3), the impeller shaft of the impeller extends out of the volute (3) and extends into the oil cooling seat (4) to be controlled by the motor (2) to rotate, the volute (3) is provided with a through hole (5) for the impeller shaft to penetrate out, a sealing cover (6) for sealing is arranged on the through hole (5), the heat gas is prevented from being discharged from the through hole (5) by the sealing cover (6).

2. The high-pressure centrifugal fan as claimed in claim 1, wherein the sealing cover (6) and the volute (3) are respectively provided with a plurality of threaded holes (8) which are uniformly distributed in the circumferential direction, and the sealing cover (6) is mounted on the volute (3) through fixing bolts.

3. The high-pressure centrifugal fan according to claim 1, wherein the sealing cover (6) is composed of an inner bushing (9) and an outer bushing (10), a central hole (11) for the impeller shaft to penetrate through is formed in the middle of the inner bushing (9), and the outer bushing (10) is sleeved outside the inner bushing (9) and seals the through hole (5) of the volute (3).

4. A high-pressure centrifugal fan according to claim 1, characterized in that said control unit (7) is a synchronous pulley unit.

5. The high-pressure centrifugal fan according to claim 1, wherein a mounting seat (12) for mounting the power supply motor (2) is arranged on the base (1), the mounting seat (12) is connected with the base (1) through a fixing screw, a guide rod (13) is arranged between the mounting seat (12) and the base (1), a plurality of screw holes tightly matched with the fixing screw are formed in the guide rod (13), a plurality of positioning rods (14) are respectively arranged on two sides of the mounting seat (12) on the base (1), and the end portions of the positioning rods (14) are respectively abutted against two side portions of the mounting seat (12).