CN215109605U

CN215109605U - Frequency conversion energy-saving centrifugal ventilator

Info

Publication number: CN215109605U
Application number: CN202121243646.4U
Authority: CN
Inventors: 蔡国亮
Original assignee: Jiangsu Xideli Draught Fan Co ltd
Current assignee: Jiangsu Xideli Draught Fan Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-12-10
Anticipated expiration: 2031-06-04

Abstract

The utility model discloses a frequency conversion energy-saving centrifugal ventilator, which comprises a shell and a connecting flange, wherein the front end of the shell is provided with the connecting flange, the upper end of the connecting flange penetrates through a fixed hole, the front end of the connecting flange is provided with a fixed plate, a sealing ring is arranged between the connecting flange and the fixed plate, the left end of the shell is provided with a side shell, the fixed plate can wrap three sides of a connecting pipeline by adding the fixed plate on the connecting flange at the front end of the existing centrifugal ventilator, the fixed hole is arranged at the uppermost end of the connecting flange, so that the two flanges are fixed through screws, when other pipelines are connected, the convenience is comparatively realized, the sealing ring is arranged at the front end of the connecting flange at the inner side of the fixed plate, the sealing between the two pipelines is more sealed, the inner wall of the fixed plate is tightly attached to the sealing flange, even if the screws at the upper end are loosened, less wind can leak between the pipelines.

Description

Frequency conversion energy-saving centrifugal ventilator

Technical Field

The utility model belongs to the technical field of the ventilation blower is relevant, concretely relates to energy-conserving centrifugal fan of frequency conversion.

Background

The ventilator is a machine which increases the pressure of gas and discharges the gas by means of input mechanical energy, and is a driven fluid machine. The exhaust pressure is lower than 1.5 x 10^4 Pa. Modern ventilators are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and draught of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household electrical appliances, drying and sorting of grains, wind tunnel wind sources and inflation and propulsion of air cushion boats, and the like.

The prior frequency conversion energy-saving centrifugal ventilator has the following problems: energy-conserving centrifugal fan of current frequency conversion when using, need be connected the pipeline of centrifugal fan front end with other pipelines, then ventilate or dispel the heat indoor outer, and current centrifugal fan rolls with other and is connected through the law even, fix through the screw, in connecting tube, need twist more screw, just can connect the pipeline, the trouble of comparison, because the ventilation blower is connected with the motor, so after long-time work, the screw on the flange will become flexible, the junction of pipeline will leak out like this.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an energy-conserving centrifugal fan of frequency conversion to what put forward in solving above-mentioned background art in the connecting tube, need twist more screw, just can connect the pipeline, the trouble of comparison because the ventilation blower is connected with the motor, so after long-time work, the screw on the flange will become flexible, the problem that the junction of pipeline will leak out like this.

In order to achieve the above object, the utility model provides a following technical scheme: a variable-frequency energy-saving centrifugal fan comprises a shell and a connecting flange, wherein the front end of the shell is provided with the connecting flange, a fixing hole penetrates through the upper end of the connecting flange, the front end of the connecting flange is provided with a fixing plate, a sealing ring is arranged between the connecting flange and the fixing plate, the left end of the shell is provided with a side shell, the side shell is fixed with the left end of the shell through a fixing screw, a fixing frame is arranged on the lower side of the right end of the shell, a motor is arranged on the upper end of the fixing frame, the left end of the motor is provided with a transmission rod, the left end of the transmission rod is provided with a fan blade, and the fan blade and the left end of the transmission rod are both located inside the shell.

Preferably, the outer shell and the side shell are both of a structure made of metal materials, and paint is painted on the outer surfaces of the outer shell and the side shell.

Preferably, the side casing is fixed to the housing by a plurality of fixing screws, and the plurality of fixing screws are rotatable on the side casing.

Preferably, the motor can drive the transmission rod to rotate, the fan blades are arranged at the left end of the transmission rod in a circle, and the motor is fixed with the fixing frame through screws.

Preferably, the connecting flange is provided with two fixing holes, and the inner walls of the two fixing holes are provided with threads.

Preferably, the connecting flange and the fixing plate are fixed in a welding mode, and the sealing ring is of a structure made of rubber materials.

Compared with the prior art, the utility model provides an energy-conserving centrifugal fan of frequency conversion possesses following beneficial effect:

1. this energy-conserving centrifugal fan of frequency conversion, through the cooperation of flange and fixed plate, makes flange when with other pipe connection, simpler, easy operation.

2. This energy-conserving centrifugal fan of frequency conversion, through the cooperation of flange and sealing washer, make flange and other pipe connection backs, even the upwind screw is not hard up, also can only leak less wind in the pipeline, more sealed.

The utility model adds a fixed plate on the connecting flange at the front end of the existing centrifugal ventilator, the fixing plate can wrap three surfaces of the connecting pipeline, the uppermost end of the connecting flange is provided with a fixing hole, so that the two flanges are fixed by screws, therefore, when other pipelines are connected, the connection is more convenient, the sealing ring is arranged at the front end of the connecting flange at the inner side of the fixing plate, so that the two pipelines are more sealed and tightly attached to the inner wall of the fixing plate, even if the upper end screw is loosened, less wind can only leak between the pipelines, when in use, the flanges of other pipelines are inserted into the inner side of the fixed plate from top to bottom, then wear the screw in the fixed orifices on two flanges and fix, so not only more convenient quick when connecting the pipeline, when the flange upper end screw not hard up the back, leakproofness between the pipeline can not reduce too much yet.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of an appearance structure of a variable-frequency energy-saving centrifugal ventilator provided by the utility model;

fig. 2 is a left-view structural schematic diagram of a variable-frequency energy-saving centrifugal ventilator provided by the utility model;

fig. 3 is a schematic structural view of a sealing ring of the variable-frequency energy-saving centrifugal ventilator provided by the utility model;

fig. 4 is a schematic view of a side structure of a pipeline connection of a variable-frequency energy-saving centrifugal ventilator provided by the utility model;

in the figure: 1. a housing; 2. a fan blade; 3. a side casing; 4. fixing screws; 5. a motor; 6. a connecting flange; 7. a fixing hole; 8. a fixed mount; 9. a fixing plate; 10. a transmission rod; 11. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an energy-conserving centrifugal fan of frequency conversion, including shell 1 and flange 6, the front end of shell 1 is provided with flange 6, flange 6's upper end runs through there is fixed orifices 7, flange 6's front end is provided with fixed plate 9, be provided with sealing washer 11 between flange 6 and the fixed plate 9, the left end of shell 1 is provided with side shell 3, side shell 3 is fixed through the left end of fixed screw 4 with shell 1, the right-hand member downside of shell 1 is provided with mount 8, the upper end of mount 8 is provided with motor 5, the left end of motor 5 is provided with transfer line 10, the left end of transfer line 10 is provided with flabellum 2, flabellum 2 all is located the inside of shell 1 with the left end of transfer line 10.

Example two

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides an energy-conserving centrifugal fan of frequency conversion, shell 1 and side shell 3 are the structure that the metal material constitutes, the metal material can make the component more durable, shell 1 and side shell 3's outward appearance all is scribbled paint, it rusts to set up like this can the placer outside, side shell 3 fixes with shell 1 through a plurality of fixed screw 4, a plurality of fixed screw 4 all can be rotatory on side shell 3, it can make side shell 3 and shell 1 better fixed to set up like this, motor 5 can drive transfer line 10 and rotate, flabellum 2 is provided with the round in transfer line 10's left end altogether, it can make work efficiency greatly increased to set up like this, motor 5 fixes through screw and mount 8.

EXAMPLE III

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an energy-conserving centrifugal fan of frequency conversion, be provided with two fixed orificess 7 on flange 6 altogether, the inner wall of two fixed orificess 7 all is provided with the screw thread, the setting can make flange 6 be connected better with other pipelines being connected like this, flange 6 adopts the welded mode to fix with fixed plate 9, the welded mode can make between the component more fixed, sealing washer 11 is the structure that rubber material constitutes, rubber material can make between the pipeline sealed effect better.

The utility model discloses a theory of operation and use flow: after the utility model is installed, the centrifugal ventilator is placed at the position to be used, then the pipeline to be connected is inserted into the fixing plate 9 from top to bottom, the flange on the pipeline is tightly attached to the sealing ring 11, then the screws are penetrated in the connecting flange 6 and the fixing holes 7 on the pipeline, and the centrifugal ventilator can be started after the screws are screwed down, thereby not only being more convenient and rapid when the pipeline is connected, when the screw at the upper end of the flange is loosened, the sealing performance between the pipelines cannot be reduced too much, after the motor 5 on the fixing frame 8 is electrified, the motor 5 can drive the transmission rod 10 to rotate, the transmission rod 10 can drive the circle of fan blades 2 to rotate, air enters from the air inlet on the side shell 3, when the air is discharged from the connecting flange 6 at the front end of the shell 1 into other pipelines, the sealing ring 11 between the connecting flange 6 and the pipelines can prevent air leakage when the interior of the pipelines is ventilated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an energy-conserving centrifugal fan of frequency conversion, includes shell (1) and flange (6), its characterized in that: the fan blade support is characterized in that a connecting flange (6) is arranged at the front end of the shell (1), a fixing hole (7) penetrates through the upper end of the connecting flange (6), a fixing plate (9) is arranged at the front end of the connecting flange (6), a sealing ring (11) is arranged between the connecting flange (6) and the fixing plate (9), a side shell (3) is arranged at the left end of the shell (1), the side shell (3) is fixed with the left end of the shell (1) through a fixing screw (4), a fixing frame (8) is arranged on the lower side of the right end of the shell (1), a motor (5) is arranged at the upper end of the fixing frame (8), a transmission rod (10) is arranged at the left end of the motor (5), a fan blade (2) is arranged at the left end of the transmission rod (10), and the fan blade (2) and the left end of the transmission rod (10) are both located inside the shell (1).

2. The variable-frequency energy-saving centrifugal fan according to claim 1, characterized in that: the shell (1) and the side shell (3) are both of a structure made of metal materials, and paint is painted on the outer surfaces of the shell (1) and the side shell (3).

3. The variable-frequency energy-saving centrifugal fan according to claim 1, characterized in that: the side shell (3) is fixed with the shell (1) through a plurality of fixing screws (4), and the fixing screws (4) can rotate on the side shell (3).

4. The variable-frequency energy-saving centrifugal fan according to claim 1, characterized in that: the motor (5) can drive the transmission rod (10) to rotate, the fan blades (2) are arranged at the left end of the transmission rod (10) in a circle, and the motor (5) is fixed with the fixing frame (8) through screws.

5. The variable-frequency energy-saving centrifugal fan according to claim 1, characterized in that: the connecting flange (6) is provided with two fixing holes (7), and the inner walls of the two fixing holes (7) are provided with threads.

6. The variable-frequency energy-saving centrifugal fan according to claim 1, characterized in that: the connecting flange (6) and the fixing plate (9) are fixed in a welding mode, and the sealing ring (11) is of a structure made of rubber materials.